Merge tag 'gpio-v3.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO tree bulk changes from Linus Walleij:
"A big set this merge window, as we have much going on in this
subsystem. The changes to other subsystems (notably a slew of ARM
machines as I am doing away with their custom APIs) have all been
ACKed to the extent possible.
Major changes this time:
- Some core improvements and cleanups to the new GPIO descriptor API.
This seems to be working now so we can start the exodus to this
API, moving gradually away from the global GPIO numberspace.
- Incremental improvements to the ACPI GPIO core, and move the few
GPIO ACPI clients we have to the GPIO descriptor API right *now*
before we go any further. We actually managed to contain this
*before* we started to litter the kernel with yet another hackish
global numberspace for the ACPI GPIOs, which is a big win.
- The RFkill GPIO driver and all platforms using it have been
migrated to use the GPIO descriptors rather than fixed number
assignments. Tegra machine has been migrated as part of this.
- New drivers for MOXA ART, Xtensa GPIO32 and SMSC SCH311x. Those
should be really good examples of how I expect a nice GPIO driver
to look these days.
- Do away with custom GPIO implementations on a major part of the ARM
machines: ks8695, lpc32xx, mv78xx0. Make a first step towards the
same in the horribly convoluted Samsung S3C include forest. We
expect to continue to clean this up as we move forward.
- Flag GPIO lines used for IRQ on adnp, bcm-kona, em, intel-mid and
lynxpoint.
This makes the GPIOlib core aware that a certain GPIO line is used
for IRQs and can then enforce some semantics such as disallowing a
GPIO line marked as in use for IRQ to be switched to output mode.
- Drop all use of irq_set_chip_and_handler_name(). The name provided
in these cases were just unhelpful tags like "mux" or "demux".
- Extend the MCP23s08 driver to handle interrupts.
- Minor incremental improvements for rcar, lynxpoint, em 74x164 and
msm drivers.
- Some non-urgent bug fixes here and there, duplicate #includes and
that usual kind of cleanups"
Fix up broken Kconfig file manually to make this all compile.
* tag 'gpio-v3.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (71 commits)
gpio: mcp23s08: fix casting caused build warning
gpio: mcp23s08: depend on OF_GPIO
gpio: mcp23s08: Add irq functionality for i2c chips
ARM: S5P[v210|c100|64x0]: Fix build error
gpio: pxa: clamp gpio get value to [0,1]
ARM: s3c24xx: explicit dependency on <plat/gpio-cfg.h>
ARM: S3C[24|64]xx: move includes back under <mach/> scope
Documentation / ACPI: update to GPIO descriptor API
gpio / ACPI: get rid of acpi_gpio.h
gpio / ACPI: register to ACPI events automatically
mmc: sdhci-acpi: convert to use GPIO descriptor API
ARM: s3c24xx: fix build error
gpio: f7188x: set can_sleep attribute
gpio: samsung: Update documentation
gpio: samsung: Remove hardware.h inclusion
gpio: xtensa: depend on HAVE_XTENSA_GPIO32
gpio: clps711x: Enable driver compilation with COMPILE_TEST
gpio: clps711x: Use of_match_ptr()
net: rfkill: gpio: convert to descriptor-based GPIO interface
leds: s3c24xx: Fix build failure
...
diff --git a/Documentation/acpi/enumeration.txt b/Documentation/acpi/enumeration.txt
index b994bcb..2a1519b 100644
--- a/Documentation/acpi/enumeration.txt
+++ b/Documentation/acpi/enumeration.txt
@@ -293,36 +293,13 @@
These GPIO numbers are controller relative and path "\\_SB.PCI0.GPI0"
specifies the path to the controller. In order to use these GPIOs in Linux
-we need to translate them to the Linux GPIO numbers.
+we need to translate them to the corresponding Linux GPIO descriptors.
-In a simple case of just getting the Linux GPIO number from device
-resources one can use acpi_get_gpio_by_index() helper function. It takes
-pointer to the device and index of the GpioIo/GpioInt descriptor in the
-device resources list. For example:
+There is a standard GPIO API for that and is documented in
+Documentation/gpio.txt.
- int gpio_irq, gpio_power;
- int ret;
-
- gpio_irq = acpi_get_gpio_by_index(dev, 1, NULL);
- if (gpio_irq < 0)
- /* handle error */
-
- gpio_power = acpi_get_gpio_by_index(dev, 0, NULL);
- if (gpio_power < 0)
- /* handle error */
-
- /* Now we can use the GPIO numbers */
-
-Other GpioIo parameters must be converted first by the driver to be
-suitable to the gpiolib before passing them.
-
-In case of GpioInt resource an additional call to gpio_to_irq() must be
-done before calling request_irq().
-
-Note that the above API is ACPI specific and not recommended for drivers
-that need to support non-ACPI systems. The recommended way is to use
-the descriptor based GPIO interfaces. The above example looks like this
-when converted to the GPIO desc:
+In the above example we can get the corresponding two GPIO descriptors with
+a code like this:
#include <linux/gpio/consumer.h>
...
@@ -339,4 +316,5 @@
/* Now we can use the GPIO descriptors */
-See also Documentation/gpio.txt.
+There are also devm_* versions of these functions which release the
+descriptors once the device is released.
diff --git a/Documentation/arm/Samsung-S3C24XX/GPIO.txt b/Documentation/arm/Samsung-S3C24XX/GPIO.txt
index 8b46c79..0ebd7e2 100644
--- a/Documentation/arm/Samsung-S3C24XX/GPIO.txt
+++ b/Documentation/arm/Samsung-S3C24XX/GPIO.txt
@@ -85,21 +85,10 @@
Headers
-------
- See arch/arm/mach-s3c2410/include/mach/regs-gpio.h for the list
+ See arch/arm/mach-s3c24xx/include/mach/regs-gpio.h for the list
of GPIO pins, and the configuration values for them. This
is included by using #include <mach/regs-gpio.h>
- The GPIO management functions are defined in the hardware
- header arch/arm/mach-s3c2410/include/mach/hardware.h which can be
- included by #include <mach/hardware.h>
-
- A useful amount of documentation can be found in the hardware
- header on how the GPIO functions (and others) work.
-
- Whilst a number of these functions do make some checks on what
- is passed to them, for speed of use, they may not always ensure
- that the user supplied data to them is correct.
-
PIN Numbers
-----------
diff --git a/Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt b/Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt
index daa3017..3ddc7cc 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt
@@ -38,12 +38,38 @@
removed.
- spi-max-frequency = The maximum frequency this chip is able to handle
-Example I2C:
+Optional properties:
+- #interrupt-cells : Should be two.
+ - first cell is the pin number
+ - second cell is used to specify flags.
+- interrupt-controller: Marks the device node as a interrupt controller.
+NOTE: The interrupt functionality is only supported for i2c versions of the
+chips. The spi chips can also do the interrupts, but this is not supported by
+the linux driver yet.
+
+Optional device specific properties:
+- microchip,irq-mirror: Sets the mirror flag in the IOCON register. Devices
+ with two interrupt outputs (these are the devices ending with 17 and
+ those that have 16 IOs) have two IO banks: IO 0-7 form bank 1 and
+ IO 8-15 are bank 2. These chips have two different interrupt outputs:
+ One for bank 1 and another for bank 2. If irq-mirror is set, both
+ interrupts are generated regardless of the bank that an input change
+ occured on. If it is not set, the interrupt are only generated for the
+ bank they belong to.
+ On devices with only one interrupt output this property is useless.
+
+Example I2C (with interrupt):
gpiom1: gpio@20 {
compatible = "microchip,mcp23017";
gpio-controller;
#gpio-cells = <2>;
reg = <0x20>;
+
+ interrupt-parent = <&gpio1>;
+ interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+ #interrupt-cells=<2>;
+ microchip,irq-mirror;
};
Example SPI:
diff --git a/Documentation/devicetree/bindings/gpio/moxa,moxart-gpio.txt b/Documentation/devicetree/bindings/gpio/moxa,moxart-gpio.txt
new file mode 100644
index 0000000..f8e8f18
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/moxa,moxart-gpio.txt
@@ -0,0 +1,19 @@
+MOXA ART GPIO Controller
+
+Required properties:
+
+- #gpio-cells : Should be 2, The first cell is the pin number,
+ the second cell is used to specify polarity:
+ 0 = active high
+ 1 = active low
+- compatible : Must be "moxa,moxart-gpio"
+- reg : Should contain registers location and length
+
+Example:
+
+ gpio: gpio@98700000 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ compatible = "moxa,moxart-gpio";
+ reg = <0x98700000 0xC>;
+ };
diff --git a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
index 8655df9..f61cef7 100644
--- a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
+++ b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
@@ -2,10 +2,11 @@
Required Properties:
- - compatible: should be one of the following.
+ - compatible: should contain one of the following.
- "renesas,gpio-r8a7778": for R8A7778 (R-Mobile M1) compatible GPIO controller.
- "renesas,gpio-r8a7779": for R8A7779 (R-Car H1) compatible GPIO controller.
- "renesas,gpio-r8a7790": for R8A7790 (R-Car H2) compatible GPIO controller.
+ - "renesas,gpio-r8a7791": for R8A7791 (R-Car M2) compatible GPIO controller.
- "renesas,gpio-rcar": for generic R-Car GPIO controller.
- reg: Base address and length of each memory resource used by the GPIO
diff --git a/Documentation/gpio/board.txt b/Documentation/gpio/board.txt
index 0d03506..ba169fa 100644
--- a/Documentation/gpio/board.txt
+++ b/Documentation/gpio/board.txt
@@ -72,10 +72,11 @@
- chip_label is the label of the gpiod_chip instance providing the GPIO
- chip_hwnum is the hardware number of the GPIO within the chip
- - dev_id is the identifier of the device that will make use of this GPIO. If
- NULL, the GPIO will be available to all devices.
+ - dev_id is the identifier of the device that will make use of this GPIO. It
+ can be NULL, in which case it will be matched for calls to gpiod_get()
+ with a NULL device.
- con_id is the name of the GPIO function from the device point of view. It
- can be NULL.
+ can be NULL, in which case it will match any function.
- idx is the index of the GPIO within the function.
- flags is defined to specify the following properties:
* GPIOF_ACTIVE_LOW - to configure the GPIO as active-low
@@ -86,18 +87,23 @@
Note that GPIO_LOOKUP() is just a shortcut to GPIO_LOOKUP_IDX() where idx = 0.
-A lookup table can then be defined as follows:
+A lookup table can then be defined as follows, with an empty entry defining its
+end:
- struct gpiod_lookup gpios_table[] = {
- GPIO_LOOKUP_IDX("gpio.0", 15, "foo.0", "led", 0, GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP_IDX("gpio.0", 16, "foo.0", "led", 1, GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP_IDX("gpio.0", 17, "foo.0", "led", 2, GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("gpio.0", 1, "foo.0", "power", GPIO_ACTIVE_LOW),
- };
+struct gpiod_lookup_table gpios_table = {
+ .dev_id = "foo.0",
+ .table = {
+ GPIO_LOOKUP_IDX("gpio.0", 15, "led", 0, GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP_IDX("gpio.0", 16, "led", 1, GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP_IDX("gpio.0", 17, "led", 2, GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("gpio.0", 1, "power", GPIO_ACTIVE_LOW),
+ { },
+ },
+};
And the table can be added by the board code as follows:
- gpiod_add_table(gpios_table, ARRAY_SIZE(gpios_table));
+ gpiod_add_lookup_table(&gpios_table);
The driver controlling "foo.0" will then be able to obtain its GPIOs as follows:
diff --git a/Documentation/gpio/consumer.txt b/Documentation/gpio/consumer.txt
index 07c74a3..e42f77d 100644
--- a/Documentation/gpio/consumer.txt
+++ b/Documentation/gpio/consumer.txt
@@ -38,7 +38,11 @@
const char *con_id, unsigned int idx)
Both functions return either a valid GPIO descriptor, or an error code checkable
-with IS_ERR(). They will never return a NULL pointer.
+with IS_ERR() (they will never return a NULL pointer). -ENOENT will be returned
+if and only if no GPIO has been assigned to the device/function/index triplet,
+other error codes are used for cases where a GPIO has been assigned but an error
+occured while trying to acquire it. This is useful to discriminate between mere
+errors and an absence of GPIO for optional GPIO parameters.
Device-managed variants of these functions are also defined:
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 9c909fc..b9df622 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -711,7 +711,6 @@
select HAVE_S3C2410_WATCHDOG if WATCHDOG
select HAVE_S3C_RTC if RTC_CLASS
select MULTI_IRQ_HANDLER
- select NEED_MACH_GPIO_H
select NEED_MACH_IO_H
select SAMSUNG_ATAGS
help
@@ -734,7 +733,6 @@
select HAVE_S3C2410_I2C if I2C
select HAVE_S3C2410_WATCHDOG if WATCHDOG
select HAVE_TCM
- select NEED_MACH_GPIO_H
select NO_IOPORT
select PLAT_SAMSUNG
select PM_GENERIC_DOMAINS
@@ -1594,7 +1592,7 @@
config ARCH_NR_GPIO
int
default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
- default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || SOC_DRA7XX
+ default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX
default 392 if ARCH_U8500
default 352 if ARCH_VT8500
default 288 if ARCH_SUNXI
diff --git a/arch/arm/mach-ks8695/include/mach/gpio.h b/arch/arm/mach-ks8695/include/mach/gpio.h
deleted file mode 100644
index f5fda36..0000000
--- a/arch/arm/mach-ks8695/include/mach/gpio.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * arch/arm/mach-ks8695/include/mach/gpio.h
- *
- * Copyright (C) 2006 Andrew Victor
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef __ASM_ARCH_GPIO_H_
-#define __ASM_ARCH_GPIO_H_
-
-/*
- * Map IRQ number to GPIO line.
- */
-extern int irq_to_gpio(unsigned int irq);
-
-#endif
diff --git a/arch/arm/mach-lpc32xx/include/mach/gpio.h b/arch/arm/mach-lpc32xx/include/mach/gpio.h
deleted file mode 100644
index 0052e7a..0000000
--- a/arch/arm/mach-lpc32xx/include/mach/gpio.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __MACH_GPIO_H
-#define __MACH_GPIO_H
-
-#include "gpio-lpc32xx.h"
-
-#endif /* __MACH_GPIO_H */
diff --git a/arch/arm/mach-lpc32xx/phy3250.c b/arch/arm/mach-lpc32xx/phy3250.c
index e54f87e..34932e0 100644
--- a/arch/arm/mach-lpc32xx/phy3250.c
+++ b/arch/arm/mach-lpc32xx/phy3250.c
@@ -36,6 +36,7 @@
#include <linux/clk.h>
#include <linux/mtd/lpc32xx_slc.h>
#include <linux/mtd/lpc32xx_mlc.h>
+#include <linux/platform_data/gpio-lpc32xx.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
@@ -44,7 +45,6 @@
#include <mach/hardware.h>
#include <mach/platform.h>
#include <mach/board.h>
-#include <mach/gpio-lpc32xx.h>
#include "common.h"
/*
diff --git a/arch/arm/mach-mv78xx0/include/mach/gpio.h b/arch/arm/mach-mv78xx0/include/mach/gpio.h
deleted file mode 100644
index 77e1b84..0000000
--- a/arch/arm/mach-mv78xx0/include/mach/gpio.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * arch/asm-arm/mach-mv78xx0/include/mach/gpio.h
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#include <plat/gpio.h>
diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index 8f1d327..d876431 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -180,27 +180,6 @@
Selected if there is an S3C2440 (or register compatible) serial
low-level implementation needed
-# gpio configurations
-
-config S3C24XX_GPIO_EXTRA
- int
- default 128 if S3C24XX_GPIO_EXTRA128
- default 64 if S3C24XX_GPIO_EXTRA64
- default 16 if ARCH_H1940
- default 0
-
-config S3C24XX_GPIO_EXTRA64
- bool
- help
- Add an extra 64 gpio numbers to the available GPIO pool. This is
- available for boards that need extra gpios for external devices.
-
-config S3C24XX_GPIO_EXTRA128
- bool
- help
- Add an extra 128 gpio numbers to the available GPIO pool. This is
- available for boards that need extra gpios for external devices.
-
config S3C24XX_PLL
bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
depends on ARM_S3C24XX_CPUFREQ
diff --git a/arch/arm/mach-s3c24xx/common-smdk.c b/arch/arm/mach-s3c24xx/common-smdk.c
index 404444d..e9fbcc9 100644
--- a/arch/arm/mach-s3c24xx/common-smdk.c
+++ b/arch/arm/mach-s3c24xx/common-smdk.c
@@ -37,8 +37,8 @@
#include <asm/irq.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
#include <linux/platform_data/leds-s3c24xx.h>
-
#include <linux/platform_data/mtd-nand-s3c2410.h>
#include <plat/gpio-cfg.h>
diff --git a/arch/arm/mach-s3c24xx/h1940-bluetooth.c b/arch/arm/mach-s3c24xx/h1940-bluetooth.c
index 5b98bfd..b4d14b8 100644
--- a/arch/arm/mach-s3c24xx/h1940-bluetooth.c
+++ b/arch/arm/mach-s3c24xx/h1940-bluetooth.c
@@ -19,8 +19,10 @@
#include <linux/gpio.h>
#include <linux/rfkill.h>
+#include <plat/gpio-cfg.h>
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
#include "h1940.h"
diff --git a/arch/arm/mach-s3c24xx/include/mach/gpio.h b/arch/arm/mach-s3c24xx/include/mach/gpio-samsung.h
similarity index 85%
rename from arch/arm/mach-s3c24xx/include/mach/gpio.h
rename to arch/arm/mach-s3c24xx/include/mach/gpio-samsung.h
index 1459156..528fcdc 100644
--- a/arch/arm/mach-s3c24xx/include/mach/gpio.h
+++ b/arch/arm/mach-s3c24xx/include/mach/gpio-samsung.h
@@ -14,16 +14,8 @@
* devices that need GPIO.
*/
-#ifndef __MACH_GPIO_H
-#define __MACH_GPIO_H __FILE__
-
-#ifdef CONFIG_CPU_S3C244X
-#define ARCH_NR_GPIOS (32 * 9 + CONFIG_S3C24XX_GPIO_EXTRA)
-#elif defined(CONFIG_CPU_S3C2443) || defined(CONFIG_CPU_S3C2416)
-#define ARCH_NR_GPIOS (32 * 12 + CONFIG_S3C24XX_GPIO_EXTRA)
-#else
-#define ARCH_NR_GPIOS (256 + CONFIG_S3C24XX_GPIO_EXTRA)
-#endif
+#ifndef GPIO_SAMSUNG_S3C24XX_H
+#define GPIO_SAMSUNG_S3C24XX_H
/*
* GPIO sizes for various SoCs:
@@ -31,17 +23,17 @@
* 2410 2412 2440 2443 2416
* 2442
* ---- ---- ---- ---- ----
- * A 23 22 25 16 25
- * B 11 11 11 11 9
- * C 16 15 16 16 16
+ * A 23 22 25 16 27
+ * B 11 11 11 11 11
+ * C 16 16 16 16 16
* D 16 16 16 16 16
* E 16 16 16 16 16
* F 8 8 8 8 8
* G 16 16 16 16 8
- * H 11 11 9 15 15
+ * H 11 11 11 15 15
* J -- -- 13 16 --
* K -- -- -- -- 16
- * L -- -- -- 15 7
+ * L -- -- -- 15 14
* M -- -- -- 2 2
*/
@@ -101,8 +93,6 @@
#define S3C2410_GPL(_nr) (S3C2410_GPIO_L_START + (_nr))
#define S3C2410_GPM(_nr) (S3C2410_GPIO_M_START + (_nr))
-#include <plat/gpio-cfg.h>
-
#ifdef CONFIG_CPU_S3C244X
#define S3C_GPIO_END (S3C2410_GPJ(0) + 32)
#elif defined(CONFIG_CPU_S3C2443) || defined(CONFIG_CPU_S3C2416)
@@ -111,4 +101,4 @@
#define S3C_GPIO_END (S3C2410_GPH(0) + 32)
#endif
-#endif /* __MACH_GPIO_H */
+#endif /* GPIO_SAMSUNG_S3C24XX_H */
diff --git a/arch/arm/mach-s3c24xx/mach-amlm5900.c b/arch/arm/mach-s3c24xx/mach-amlm5900.c
index e27b5c9..284ea1f 100644
--- a/arch/arm/mach-s3c24xx/mach-amlm5900.c
+++ b/arch/arm/mach-s3c24xx/mach-amlm5900.c
@@ -52,6 +52,7 @@
#include <plat/regs-serial.h>
#include <mach/regs-lcd.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
#include <linux/platform_data/i2c-s3c2410.h>
#include <plat/devs.h>
diff --git a/arch/arm/mach-s3c24xx/mach-anubis.c b/arch/arm/mach-s3c24xx/mach-anubis.c
index c1fb6c3..2a16f8f 100644
--- a/arch/arm/mach-s3c24xx/mach-anubis.c
+++ b/arch/arm/mach-s3c24xx/mach-anubis.c
@@ -35,6 +35,7 @@
#include <plat/regs-serial.h>
#include <mach/regs-gpio.h>
#include <mach/regs-lcd.h>
+#include <mach/gpio-samsung.h>
#include <linux/platform_data/mtd-nand-s3c2410.h>
#include <linux/platform_data/i2c-s3c2410.h>
diff --git a/arch/arm/mach-s3c24xx/mach-at2440evb.c b/arch/arm/mach-s3c24xx/mach-at2440evb.c
index 6dfeeb7..6beab67 100644
--- a/arch/arm/mach-s3c24xx/mach-at2440evb.c
+++ b/arch/arm/mach-s3c24xx/mach-at2440evb.c
@@ -36,6 +36,7 @@
#include <plat/regs-serial.h>
#include <mach/regs-gpio.h>
#include <mach/regs-lcd.h>
+#include <mach/gpio-samsung.h>
#include <linux/platform_data/mtd-nand-s3c2410.h>
#include <linux/platform_data/i2c-s3c2410.h>
diff --git a/arch/arm/mach-s3c24xx/mach-bast.c b/arch/arm/mach-s3c24xx/mach-bast.c
index 22d6ae9..981ba1e 100644
--- a/arch/arm/mach-s3c24xx/mach-bast.c
+++ b/arch/arm/mach-s3c24xx/mach-bast.c
@@ -48,6 +48,7 @@
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
#include <mach/regs-lcd.h>
+#include <mach/gpio-samsung.h>
#include <plat/clock.h>
#include <plat/cpu.h>
diff --git a/arch/arm/mach-s3c24xx/mach-gta02.c b/arch/arm/mach-s3c24xx/mach-gta02.c
index 13d8d07..d9170e9 100644
--- a/arch/arm/mach-s3c24xx/mach-gta02.c
+++ b/arch/arm/mach-s3c24xx/mach-gta02.c
@@ -75,6 +75,7 @@
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
#include <mach/regs-irq.h>
+#include <mach/gpio-samsung.h>
#include <plat/cpu.h>
#include <plat/devs.h>
diff --git a/arch/arm/mach-s3c24xx/mach-h1940.c b/arch/arm/mach-s3c24xx/mach-h1940.c
index 952b6a0..de08321 100644
--- a/arch/arm/mach-s3c24xx/mach-h1940.c
+++ b/arch/arm/mach-s3c24xx/mach-h1940.c
@@ -54,6 +54,7 @@
#include <mach/regs-clock.h>
#include <mach/regs-gpio.h>
#include <mach/regs-lcd.h>
+#include <mach/gpio-samsung.h>
#include <plat/clock.h>
#include <plat/cpu.h>
diff --git a/arch/arm/mach-s3c24xx/mach-jive.c b/arch/arm/mach-s3c24xx/mach-jive.c
index 43c23e2..67cb8e9 100644
--- a/arch/arm/mach-s3c24xx/mach-jive.c
+++ b/arch/arm/mach-s3c24xx/mach-jive.c
@@ -38,6 +38,7 @@
#include <mach/regs-gpio.h>
#include <mach/regs-lcd.h>
#include <mach/fb.h>
+#include <mach/gpio-samsung.h>
#include <asm/mach-types.h>
diff --git a/arch/arm/mach-s3c24xx/mach-mini2440.c b/arch/arm/mach-s3c24xx/mach-mini2440.c
index 4a18d49..1f15597 100644
--- a/arch/arm/mach-s3c24xx/mach-mini2440.c
+++ b/arch/arm/mach-s3c24xx/mach-mini2440.c
@@ -42,6 +42,7 @@
#include <linux/platform_data/leds-s3c24xx.h>
#include <mach/regs-lcd.h>
#include <mach/irqs.h>
+#include <mach/gpio-samsung.h>
#include <linux/platform_data/mtd-nand-s3c2410.h>
#include <linux/platform_data/i2c-s3c2410.h>
#include <linux/platform_data/mmc-s3cmci.h>
diff --git a/arch/arm/mach-s3c24xx/mach-n30.c b/arch/arm/mach-s3c24xx/mach-n30.c
index 2cb46c3..997684f 100644
--- a/arch/arm/mach-s3c24xx/mach-n30.c
+++ b/arch/arm/mach-s3c24xx/mach-n30.c
@@ -36,6 +36,7 @@
#include <linux/platform_data/leds-s3c24xx.h>
#include <mach/regs-gpio.h>
#include <mach/regs-lcd.h>
+#include <mach/gpio-samsung.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
diff --git a/arch/arm/mach-s3c24xx/mach-nexcoder.c b/arch/arm/mach-s3c24xx/mach-nexcoder.c
index 01f4354..575d28c 100644
--- a/arch/arm/mach-s3c24xx/mach-nexcoder.c
+++ b/arch/arm/mach-s3c24xx/mach-nexcoder.c
@@ -37,6 +37,7 @@
//#include <asm/debug-ll.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
#include <plat/regs-serial.h>
#include <linux/platform_data/i2c-s3c2410.h>
diff --git a/arch/arm/mach-s3c24xx/mach-osiris-dvs.c b/arch/arm/mach-s3c24xx/mach-osiris-dvs.c
index 45e7436..33afb91 100644
--- a/arch/arm/mach-s3c24xx/mach-osiris-dvs.c
+++ b/arch/arm/mach-s3c24xx/mach-osiris-dvs.c
@@ -20,6 +20,7 @@
#include <linux/i2c/tps65010.h>
#include <plat/cpu-freq.h>
+#include <mach/gpio-samsung.h>
#define OSIRIS_GPIO_DVS S3C2410_GPB(5)
diff --git a/arch/arm/mach-s3c24xx/mach-osiris.c b/arch/arm/mach-s3c24xx/mach-osiris.c
index 58d6fbe..f84f2a4 100644
--- a/arch/arm/mach-s3c24xx/mach-osiris.c
+++ b/arch/arm/mach-s3c24xx/mach-osiris.c
@@ -50,6 +50,7 @@
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
#include <mach/regs-lcd.h>
+#include <mach/gpio-samsung.h>
#include "common.h"
#include "osiris.h"
diff --git a/arch/arm/mach-s3c24xx/mach-qt2410.c b/arch/arm/mach-s3c24xx/mach-qt2410.c
index f8feaea..b534b76 100644
--- a/arch/arm/mach-s3c24xx/mach-qt2410.c
+++ b/arch/arm/mach-s3c24xx/mach-qt2410.c
@@ -54,6 +54,7 @@
#include <linux/platform_data/mtd-nand-s3c2410.h>
#include <linux/platform_data/usb-s3c2410_udc.h>
#include <linux/platform_data/i2c-s3c2410.h>
+#include <mach/gpio-samsung.h>
#include <plat/gpio-cfg.h>
#include <plat/devs.h>
diff --git a/arch/arm/mach-s3c24xx/mach-rx1950.c b/arch/arm/mach-s3c24xx/mach-rx1950.c
index 034b7fe..0a5456c 100644
--- a/arch/arm/mach-s3c24xx/mach-rx1950.c
+++ b/arch/arm/mach-s3c24xx/mach-rx1950.c
@@ -51,6 +51,7 @@
#include <mach/fb.h>
#include <mach/regs-gpio.h>
#include <mach/regs-lcd.h>
+#include <mach/gpio-samsung.h>
#include <plat/clock.h>
#include <plat/cpu.h>
@@ -58,6 +59,7 @@
#include <plat/pm.h>
#include <plat/regs-serial.h>
#include <plat/samsung-time.h>
+#include <plat/gpio-cfg.h>
#include "common.h"
#include "h1940.h"
diff --git a/arch/arm/mach-s3c24xx/mach-rx3715.c b/arch/arm/mach-s3c24xx/mach-rx3715.c
index 3bc6231..b36edce 100644
--- a/arch/arm/mach-s3c24xx/mach-rx3715.c
+++ b/arch/arm/mach-s3c24xx/mach-rx3715.c
@@ -43,6 +43,7 @@
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
#include <mach/regs-lcd.h>
+#include <mach/gpio-samsung.h>
#include <plat/clock.h>
#include <plat/cpu.h>
diff --git a/arch/arm/mach-s3c24xx/mach-smdk2413.c b/arch/arm/mach-s3c24xx/mach-smdk2413.c
index c9d31ef..f5bc721 100644
--- a/arch/arm/mach-s3c24xx/mach-smdk2413.c
+++ b/arch/arm/mach-s3c24xx/mach-smdk2413.c
@@ -39,6 +39,7 @@
#include <linux/platform_data/usb-s3c2410_udc.h>
#include <linux/platform_data/i2c-s3c2410.h>
+#include <mach/gpio-samsung.h>
#include <mach/fb.h>
#include <plat/clock.h>
diff --git a/arch/arm/mach-s3c24xx/mach-smdk2416.c b/arch/arm/mach-s3c24xx/mach-smdk2416.c
index f88e672..12023ca 100644
--- a/arch/arm/mach-s3c24xx/mach-smdk2416.c
+++ b/arch/arm/mach-s3c24xx/mach-smdk2416.c
@@ -38,6 +38,7 @@
#include <mach/regs-gpio.h>
#include <mach/regs-lcd.h>
#include <mach/regs-s3c2443-clock.h>
+#include <mach/gpio-samsung.h>
#include <linux/platform_data/leds-s3c24xx.h>
#include <linux/platform_data/i2c-s3c2410.h>
diff --git a/arch/arm/mach-s3c24xx/mach-vr1000.c b/arch/arm/mach-s3c24xx/mach-vr1000.c
index 42e7187..755df48 100644
--- a/arch/arm/mach-s3c24xx/mach-vr1000.c
+++ b/arch/arm/mach-s3c24xx/mach-vr1000.c
@@ -40,6 +40,7 @@
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
#include <plat/clock.h>
#include <plat/cpu.h>
diff --git a/arch/arm/mach-s3c24xx/pm-s3c2410.c b/arch/arm/mach-s3c24xx/pm-s3c2410.c
index 2d82c4f..20e481d 100644
--- a/arch/arm/mach-s3c24xx/pm-s3c2410.c
+++ b/arch/arm/mach-s3c24xx/pm-s3c2410.c
@@ -33,7 +33,9 @@
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
+#include <plat/gpio-cfg.h>
#include <plat/cpu.h>
#include <plat/pm.h>
diff --git a/arch/arm/mach-s3c24xx/pm.c b/arch/arm/mach-s3c24xx/pm.c
index caa5b72..052ca23 100644
--- a/arch/arm/mach-s3c24xx/pm.c
+++ b/arch/arm/mach-s3c24xx/pm.c
@@ -39,6 +39,7 @@
#include <mach/regs-clock.h>
#include <mach/regs-gpio.h>
#include <mach/regs-irq.h>
+#include <mach/gpio-samsung.h>
#include <asm/mach/time.h>
diff --git a/arch/arm/mach-s3c24xx/s3c2410.c b/arch/arm/mach-s3c24xx/s3c2410.c
index 34676d1..ffb92cbc 100644
--- a/arch/arm/mach-s3c24xx/s3c2410.c
+++ b/arch/arm/mach-s3c24xx/s3c2410.c
@@ -30,6 +30,7 @@
#include <asm/mach/irq.h>
#include <mach/hardware.h>
+#include <mach/gpio-samsung.h>
#include <asm/irq.h>
#include <asm/system_misc.h>
diff --git a/arch/arm/mach-s3c24xx/s3c2416.c b/arch/arm/mach-s3c24xx/s3c2416.c
index 9ef3ccf..8e01b4f 100644
--- a/arch/arm/mach-s3c24xx/s3c2416.c
+++ b/arch/arm/mach-s3c24xx/s3c2416.c
@@ -42,6 +42,7 @@
#include <asm/mach/irq.h>
#include <mach/hardware.h>
+#include <mach/gpio-samsung.h>
#include <asm/proc-fns.h>
#include <asm/irq.h>
#include <asm/system_misc.h>
diff --git a/arch/arm/mach-s3c24xx/s3c2440.c b/arch/arm/mach-s3c24xx/s3c2440.c
index 5f9d656..03d379f 100644
--- a/arch/arm/mach-s3c24xx/s3c2440.c
+++ b/arch/arm/mach-s3c24xx/s3c2440.c
@@ -29,6 +29,7 @@
#include <asm/mach/irq.h>
#include <mach/hardware.h>
+#include <mach/gpio-samsung.h>
#include <asm/irq.h>
#include <plat/devs.h>
diff --git a/arch/arm/mach-s3c24xx/s3c2442.c b/arch/arm/mach-s3c24xx/s3c2442.c
index 6819961..2c8adc0 100644
--- a/arch/arm/mach-s3c24xx/s3c2442.c
+++ b/arch/arm/mach-s3c24xx/s3c2442.c
@@ -37,6 +37,7 @@
#include <linux/io.h>
#include <mach/hardware.h>
+#include <mach/gpio-samsung.h>
#include <linux/atomic.h>
#include <asm/irq.h>
diff --git a/arch/arm/mach-s3c24xx/s3c2443.c b/arch/arm/mach-s3c24xx/s3c2443.c
index b6c7191..886c214 100644
--- a/arch/arm/mach-s3c24xx/s3c2443.c
+++ b/arch/arm/mach-s3c24xx/s3c2443.c
@@ -29,6 +29,7 @@
#include <asm/mach/irq.h>
#include <mach/hardware.h>
+#include <mach/gpio-samsung.h>
#include <asm/irq.h>
#include <asm/system_misc.h>
diff --git a/arch/arm/mach-s3c24xx/setup-i2c.c b/arch/arm/mach-s3c24xx/setup-i2c.c
index 7b4f333..1852696 100644
--- a/arch/arm/mach-s3c24xx/setup-i2c.c
+++ b/arch/arm/mach-s3c24xx/setup-i2c.c
@@ -19,6 +19,7 @@
#include <linux/platform_data/i2c-s3c2410.h>
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
void s3c_i2c0_cfg_gpio(struct platform_device *dev)
{
diff --git a/arch/arm/mach-s3c24xx/setup-sdhci-gpio.c b/arch/arm/mach-s3c24xx/setup-sdhci-gpio.c
index f65cb3e..c99b0f6 100644
--- a/arch/arm/mach-s3c24xx/setup-sdhci-gpio.c
+++ b/arch/arm/mach-s3c24xx/setup-sdhci-gpio.c
@@ -20,6 +20,7 @@
#include <linux/gpio.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
#include <plat/gpio-cfg.h>
void s3c2416_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
diff --git a/arch/arm/mach-s3c24xx/setup-ts.c b/arch/arm/mach-s3c24xx/setup-ts.c
index 4e11aff..46466d2 100644
--- a/arch/arm/mach-s3c24xx/setup-ts.c
+++ b/arch/arm/mach-s3c24xx/setup-ts.c
@@ -15,7 +15,9 @@
struct platform_device; /* don't need the contents */
+#include <plat/gpio-cfg.h>
#include <mach/hardware.h>
+#include <mach/gpio-samsung.h>
/**
* s3c24xx_ts_cfg_gpio - configure gpio for s3c2410 systems
diff --git a/arch/arm/mach-s3c24xx/simtec-usb.c b/arch/arm/mach-s3c24xx/simtec-usb.c
index 2ed2e32..8dea917 100644
--- a/arch/arm/mach-s3c24xx/simtec-usb.c
+++ b/arch/arm/mach-s3c24xx/simtec-usb.c
@@ -29,6 +29,7 @@
#include <asm/mach/irq.h>
#include <mach/hardware.h>
+#include <mach/gpio-samsung.h>
#include <asm/irq.h>
#include <linux/platform_data/usb-ohci-s3c2410.h>
diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index 2cb8dc5..175f015 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -192,7 +192,6 @@
select MFD_WM8350_I2C
select REGULATOR
select REGULATOR_WM8350
- select SAMSUNG_GPIO_EXTRA64
help
The Wolfson Microelectronics 1190-EV1 is a WM835x based PMIC
and audio daughtercard for the Samsung SMDK6410 reference
@@ -208,7 +207,6 @@
select MFD_WM831X_I2C
select REGULATOR
select REGULATOR_WM831X
- select SAMSUNG_GPIO_EXTRA64
help
The Wolfson Microelectronics 1192-EV1 is a WM831x based PMIC
daughtercard for the Samsung SMDK6410 reference platform.
@@ -294,7 +292,6 @@
select SAMSUNG_DEV_ADC
select SAMSUNG_DEV_KEYPAD
select SAMSUNG_DEV_PWM
- select SAMSUNG_GPIO_EXTRA128
help
Machine support for the Wolfson Cragganmore S3C6410 variant.
diff --git a/arch/arm/mach-s3c64xx/common.c b/arch/arm/mach-s3c64xx/common.c
index 7a3ce4c..76ab595 100644
--- a/arch/arm/mach-s3c64xx/common.c
+++ b/arch/arm/mach-s3c64xx/common.c
@@ -41,6 +41,7 @@
#include <mach/map.h>
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
#include <plat/cpu.h>
#include <plat/devs.h>
diff --git a/arch/arm/mach-s3c64xx/crag6410.h b/arch/arm/mach-s3c64xx/crag6410.h
index 4c3c999..7bc6668 100644
--- a/arch/arm/mach-s3c64xx/crag6410.h
+++ b/arch/arm/mach-s3c64xx/crag6410.h
@@ -11,7 +11,7 @@
#ifndef MACH_CRAG6410_H
#define MACH_CRAG6410_H
-#include <linux/gpio.h>
+#include <mach/gpio-samsung.h>
#define GLENFARCLAS_PMIC_IRQ_BASE IRQ_BOARD_START
diff --git a/arch/arm/mach-s3c64xx/dev-audio.c b/arch/arm/mach-s3c64xx/dev-audio.c
index e367e87..ff780a8 100644
--- a/arch/arm/mach-s3c64xx/dev-audio.c
+++ b/arch/arm/mach-s3c64xx/dev-audio.c
@@ -22,6 +22,7 @@
#include <plat/devs.h>
#include <linux/platform_data/asoc-s3c.h>
#include <plat/gpio-cfg.h>
+#include <mach/gpio-samsung.h>
static int s3c64xx_i2s_cfg_gpio(struct platform_device *pdev)
{
diff --git a/arch/arm/mach-s3c64xx/include/mach/gpio.h b/arch/arm/mach-s3c64xx/include/mach/gpio-samsung.h
similarity index 95%
rename from arch/arm/mach-s3c64xx/include/mach/gpio.h
rename to arch/arm/mach-s3c64xx/include/mach/gpio-samsung.h
index 8b540c4..9c81fac 100644
--- a/arch/arm/mach-s3c64xx/include/mach/gpio.h
+++ b/arch/arm/mach-s3c64xx/include/mach/gpio-samsung.h
@@ -1,5 +1,4 @@
-/* arch/arm/mach-s3c6400/include/mach/gpio.h
- *
+/*
* Copyright 2008 Openmoko, Inc.
* Copyright 2008 Simtec Electronics
* http://armlinux.simtec.co.uk/
@@ -12,6 +11,9 @@
* published by the Free Software Foundation.
*/
+#ifndef GPIO_SAMSUNG_S3C64XX_H
+#define GPIO_SAMSUNG_S3C64XX_H
+
/* GPIO bank sizes */
#define S3C64XX_GPIO_A_NR (8)
#define S3C64XX_GPIO_B_NR (7)
@@ -88,6 +90,5 @@
/* define the number of gpios we need to the one after the GPQ() range */
#define GPIO_BOARD_START (S3C64XX_GPQ(S3C64XX_GPIO_Q_NR) + 1)
-#define BOARD_NR_GPIOS (16 + CONFIG_SAMSUNG_GPIO_EXTRA)
+#endif /* GPIO_SAMSUNG_S3C64XX_H */
-#define ARCH_NR_GPIOS (GPIO_BOARD_START + BOARD_NR_GPIOS)
diff --git a/arch/arm/mach-s3c64xx/mach-anw6410.c b/arch/arm/mach-s3c64xx/mach-anw6410.c
index d266dd5..ddeb0e5 100644
--- a/arch/arm/mach-s3c64xx/mach-anw6410.c
+++ b/arch/arm/mach-s3c64xx/mach-anw6410.c
@@ -49,6 +49,7 @@
#include <plat/devs.h>
#include <plat/cpu.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
#include <plat/samsung-time.h>
#include "common.h"
diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index 758e31b..3df3c37 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -48,8 +48,8 @@
#include <video/samsung_fimd.h>
#include <mach/hardware.h>
#include <mach/map.h>
-
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
#include <plat/regs-serial.h>
#include <plat/fb.h>
diff --git a/arch/arm/mach-s3c64xx/mach-hmt.c b/arch/arm/mach-s3c64xx/mach-hmt.c
index 614a03a..0431016 100644
--- a/arch/arm/mach-s3c64xx/mach-hmt.c
+++ b/arch/arm/mach-s3c64xx/mach-hmt.c
@@ -35,6 +35,7 @@
#include <plat/regs-serial.h>
#include <linux/platform_data/i2c-s3c2410.h>
+#include <mach/gpio-samsung.h>
#include <plat/fb.h>
#include <linux/platform_data/mtd-nand-s3c2410.h>
diff --git a/arch/arm/mach-s3c64xx/mach-mini6410.c b/arch/arm/mach-s3c64xx/mach-mini6410.c
index 58d46a3..8c84d34 100644
--- a/arch/arm/mach-s3c64xx/mach-mini6410.c
+++ b/arch/arm/mach-s3c64xx/mach-mini6410.c
@@ -30,6 +30,7 @@
#include <mach/map.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
#include <plat/adc.h>
#include <plat/cpu.h>
diff --git a/arch/arm/mach-s3c64xx/mach-real6410.c b/arch/arm/mach-s3c64xx/mach-real6410.c
index 8bed37b..5152026 100644
--- a/arch/arm/mach-s3c64xx/mach-real6410.c
+++ b/arch/arm/mach-s3c64xx/mach-real6410.c
@@ -31,6 +31,7 @@
#include <mach/map.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
#include <plat/adc.h>
#include <plat/cpu.h>
diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c
index a6b338f..5629df9 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq.c
@@ -25,6 +25,7 @@
#include <mach/map.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
#include <plat/clock.h>
#include <plat/cpu.h>
diff --git a/arch/arm/mach-s3c64xx/mach-smartq5.c b/arch/arm/mach-s3c64xx/mach-smartq5.c
index 8aca5da..dec4c08 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq5.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq5.c
@@ -23,6 +23,7 @@
#include <video/samsung_fimd.h>
#include <mach/map.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
#include <plat/cpu.h>
#include <plat/devs.h>
diff --git a/arch/arm/mach-s3c64xx/mach-smartq7.c b/arch/arm/mach-s3c64xx/mach-smartq7.c
index a052e10..27b3220 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq7.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq7.c
@@ -23,6 +23,7 @@
#include <video/samsung_fimd.h>
#include <mach/map.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
#include <plat/cpu.h>
#include <plat/devs.h>
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6400.c b/arch/arm/mach-s3c64xx/mach-smdk6400.c
index 27381cf..150f55f 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6400.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6400.c
@@ -35,6 +35,7 @@
#include <plat/devs.h>
#include <plat/cpu.h>
#include <linux/platform_data/i2c-s3c2410.h>
+#include <mach/gpio-samsung.h>
#include <plat/samsung-time.h>
#include "common.h"
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c
index d5ea938..43261d2 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6410.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6410.c
@@ -57,6 +57,7 @@
#include <plat/regs-serial.h>
#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
#include <linux/platform_data/ata-samsung_cf.h>
#include <linux/platform_data/i2c-s3c2410.h>
#include <plat/fb.h>
diff --git a/arch/arm/mach-s3c64xx/pm.c b/arch/arm/mach-s3c64xx/pm.c
index 8cdb824..b5a6698 100644
--- a/arch/arm/mach-s3c64xx/pm.c
+++ b/arch/arm/mach-s3c64xx/pm.c
@@ -28,6 +28,7 @@
#include <mach/regs-gpio.h>
#include <mach/regs-clock.h>
+#include <mach/gpio-samsung.h>
#include "regs-gpio-memport.h"
#include "regs-modem.h"
diff --git a/arch/arm/mach-s3c64xx/setup-fb-24bpp.c b/arch/arm/mach-s3c64xx/setup-fb-24bpp.c
index 2cf8002..9d17bff 100644
--- a/arch/arm/mach-s3c64xx/setup-fb-24bpp.c
+++ b/arch/arm/mach-s3c64xx/setup-fb-24bpp.c
@@ -19,6 +19,7 @@
#include <plat/fb.h>
#include <plat/gpio-cfg.h>
+#include <mach/gpio-samsung.h>
void s3c64xx_fb_gpio_setup_24bpp(void)
{
diff --git a/arch/arm/mach-s3c64xx/setup-i2c0.c b/arch/arm/mach-s3c64xx/setup-i2c0.c
index 40666ba..4b8c1cf 100644
--- a/arch/arm/mach-s3c64xx/setup-i2c0.c
+++ b/arch/arm/mach-s3c64xx/setup-i2c0.c
@@ -20,6 +20,7 @@
#include <linux/platform_data/i2c-s3c2410.h>
#include <plat/gpio-cfg.h>
+#include <mach/gpio-samsung.h>
void s3c_i2c0_cfg_gpio(struct platform_device *dev)
{
diff --git a/arch/arm/mach-s3c64xx/setup-i2c1.c b/arch/arm/mach-s3c64xx/setup-i2c1.c
index 3fdb24c..cd1df71 100644
--- a/arch/arm/mach-s3c64xx/setup-i2c1.c
+++ b/arch/arm/mach-s3c64xx/setup-i2c1.c
@@ -20,6 +20,7 @@
#include <linux/platform_data/i2c-s3c2410.h>
#include <plat/gpio-cfg.h>
+#include <mach/gpio-samsung.h>
void s3c_i2c1_cfg_gpio(struct platform_device *dev)
{
diff --git a/arch/arm/mach-s3c64xx/setup-ide.c b/arch/arm/mach-s3c64xx/setup-ide.c
index 648d8b8..689fb72 100644
--- a/arch/arm/mach-s3c64xx/setup-ide.c
+++ b/arch/arm/mach-s3c64xx/setup-ide.c
@@ -17,6 +17,7 @@
#include <mach/map.h>
#include <mach/regs-clock.h>
#include <plat/gpio-cfg.h>
+#include <mach/gpio-samsung.h>
#include <linux/platform_data/ata-samsung_cf.h>
void s3c64xx_ide_setup_gpio(void)
diff --git a/arch/arm/mach-s3c64xx/setup-keypad.c b/arch/arm/mach-s3c64xx/setup-keypad.c
index 1d4d0ee..6ad9a89 100644
--- a/arch/arm/mach-s3c64xx/setup-keypad.c
+++ b/arch/arm/mach-s3c64xx/setup-keypad.c
@@ -13,6 +13,7 @@
#include <linux/gpio.h>
#include <plat/gpio-cfg.h>
#include <plat/keypad.h>
+#include <mach/gpio-samsung.h>
void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols)
{
diff --git a/arch/arm/mach-s3c64xx/setup-sdhci-gpio.c b/arch/arm/mach-s3c64xx/setup-sdhci-gpio.c
index 6eac071..f426b7a 100644
--- a/arch/arm/mach-s3c64xx/setup-sdhci-gpio.c
+++ b/arch/arm/mach-s3c64xx/setup-sdhci-gpio.c
@@ -20,6 +20,7 @@
#include <plat/gpio-cfg.h>
#include <plat/sdhci.h>
+#include <mach/gpio-samsung.h>
void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
{
diff --git a/arch/arm/mach-s3c64xx/setup-spi.c b/arch/arm/mach-s3c64xx/setup-spi.c
index 4dc5345..5fd1a31 100644
--- a/arch/arm/mach-s3c64xx/setup-spi.c
+++ b/arch/arm/mach-s3c64xx/setup-spi.c
@@ -10,6 +10,7 @@
#include <linux/gpio.h>
#include <plat/gpio-cfg.h>
+#include <mach/gpio-samsung.h>
#ifdef CONFIG_S3C64XX_DEV_SPI0
int s3c64xx_spi0_cfg_gpio(void)
diff --git a/arch/arm/mach-tegra/board-paz00.c b/arch/arm/mach-tegra/board-paz00.c
index 06f0240..e4dec9f 100644
--- a/arch/arm/mach-tegra/board-paz00.c
+++ b/arch/arm/mach-tegra/board-paz00.c
@@ -18,6 +18,7 @@
*/
#include <linux/platform_device.h>
+#include <linux/gpio/driver.h>
#include <linux/rfkill-gpio.h>
#include "board.h"
@@ -36,7 +37,17 @@
},
};
+static struct gpiod_lookup_table wifi_gpio_lookup = {
+ .dev_id = "rfkill_gpio",
+ .table = {
+ GPIO_LOOKUP_IDX("tegra-gpio", 25, NULL, 0, 0),
+ GPIO_LOOKUP_IDX("tegra-gpio", 85, NULL, 1, 0),
+ { },
+ },
+};
+
void __init tegra_paz00_wifikill_init(void)
{
+ gpiod_add_lookup_table(&wifi_gpio_lookup);
platform_device_register(&wifi_rfkill_device);
}
diff --git a/arch/arm/plat-samsung/pm-gpio.c b/arch/arm/plat-samsung/pm-gpio.c
index a8de3cf..dd4c15d0 100644
--- a/arch/arm/plat-samsung/pm-gpio.c
+++ b/arch/arm/plat-samsung/pm-gpio.c
@@ -19,6 +19,10 @@
#include <linux/io.h>
#include <linux/gpio.h>
+#if defined(CONFIG_ARCH_S3C24XX) || defined(CONFIG_ARCH_S3C64XX)
+#include <mach/gpio-samsung.h>
+#endif
+
#include <plat/gpio-core.h>
#include <plat/pm.h>
diff --git a/arch/arm/plat-samsung/setup-camif.c b/arch/arm/plat-samsung/setup-camif.c
index e01bf76..72d8edb 100644
--- a/arch/arm/plat-samsung/setup-camif.c
+++ b/arch/arm/plat-samsung/setup-camif.c
@@ -10,6 +10,7 @@
#include <linux/gpio.h>
#include <plat/gpio-cfg.h>
+#include <mach/gpio-samsung.h>
/* Number of camera port pins, without FIELD */
#define S3C_CAMIF_NUM_GPIOS 13
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 8d24dcb..f8df0cc 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -64,6 +64,9 @@
config VARIANT_IRQ_SWITCH
def_bool n
+config HAVE_XTENSA_GPIO32
+ def_bool n
+
menu "Processor type and features"
choice
@@ -73,16 +76,19 @@
config XTENSA_VARIANT_FSF
bool "fsf - default (not generic) configuration"
select MMU
+ select HAVE_XTENSA_GPIO32
config XTENSA_VARIANT_DC232B
bool "dc232b - Diamond 232L Standard Core Rev.B (LE)"
select MMU
+ select HAVE_XTENSA_GPIO32
help
This variant refers to Tensilica's Diamond 232L Standard core Rev.B (LE).
config XTENSA_VARIANT_DC233C
bool "dc233c - Diamond 233L Standard Core Rev.C (LE)"
select MMU
+ select HAVE_XTENSA_GPIO32
help
This variant refers to Tensilica's Diamond 233L Standard core Rev.C (LE).
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 0f04444..25ce03e 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -110,7 +110,7 @@
config GPIO_CLPS711X
tristate "CLPS711X GPIO support"
- depends on ARCH_CLPS711X
+ depends on ARCH_CLPS711X || COMPILE_TEST
select GPIO_GENERIC
help
Say yes here to support GPIO on CLPS711X SoCs.
@@ -156,6 +156,13 @@
To compile this driver as a module, choose M here: the module will
be called f7188x-gpio.
+config GPIO_MOXART
+ bool "MOXART GPIO support"
+ depends on ARCH_MOXART
+ help
+ Select this option to enable GPIO driver for
+ MOXA ART SoC devices.
+
config GPIO_MPC5200
def_bool y
depends on PPC_MPC52xx
@@ -237,6 +244,15 @@
Legacy GPIO support. Use only for platforms without support for
pinctrl.
+config GPIO_SCH311X
+ tristate "SMSC SCH311x SuperI/O GPIO"
+ help
+ Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
+ SCH3116 "Super I/O" chipsets.
+
+ To compile this driver as a module, choose M here: the module will
+ be called gpio-sch311x.
+
config GPIO_SPEAR_SPICS
bool "ST SPEAr13xx SPI Chip Select as GPIO support"
depends on PLAT_SPEAR
@@ -281,6 +297,15 @@
help
Say yes here to support the Xilinx FPGA GPIO device
+config GPIO_XTENSA
+ bool "Xtensa GPIO32 support"
+ depends on XTENSA
+ depends on HAVE_XTENSA_GPIO32
+ depends on !SMP
+ help
+ Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
+ and EXPSTATE (output) ports
+
config GPIO_VR41XX
tristate "NEC VR4100 series General-purpose I/O Uint support"
depends on CPU_VR41XX
@@ -353,7 +378,7 @@
board computers.
config GPIO_LYNXPOINT
- bool "Intel Lynxpoint GPIO support"
+ tristate "Intel Lynxpoint GPIO support"
depends on ACPI && X86
select IRQ_DOMAIN
help
@@ -692,11 +717,13 @@
config GPIO_MCP23S08
tristate "Microchip MCP23xxx I/O expander"
+ depends on OF_GPIO
depends on (SPI_MASTER && !I2C) || I2C
help
SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
I/O expanders.
This provides a GPIO interface supporting inputs and outputs.
+ The I2C versions of the chips can be used as interrupt-controller.
config GPIO_MC33880
tristate "Freescale MC33880 high-side/low-side switch"
@@ -707,10 +734,10 @@
config GPIO_74X164
tristate "74x164 serial-in/parallel-out 8-bits shift register"
- depends on SPI_MASTER
+ depends on SPI_MASTER && OF
help
- Platform driver for 74x164 compatible serial-in/parallel-out
- 8-outputs shift registers. This driver can be used to provide access
+ Driver for 74x164 compatible serial-in/parallel-out 8-outputs
+ shift registers. This driver can be used to provide access
to more gpio outputs.
comment "AC97 GPIO expanders:"
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 7971e36..c44fffa 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -46,6 +46,7 @@
obj-$(CONFIG_GPIO_MCP23S08) += gpio-mcp23s08.o
obj-$(CONFIG_GPIO_ML_IOH) += gpio-ml-ioh.o
obj-$(CONFIG_GPIO_MM_LANTIQ) += gpio-mm-lantiq.o
+obj-$(CONFIG_GPIO_MOXART) += gpio-moxart.o
obj-$(CONFIG_GPIO_MPC5200) += gpio-mpc5200.o
obj-$(CONFIG_GPIO_MPC8XXX) += gpio-mpc8xxx.o
obj-$(CONFIG_GPIO_MSIC) += gpio-msic.o
@@ -67,6 +68,7 @@
obj-$(CONFIG_GPIO_SAMSUNG) += gpio-samsung.o
obj-$(CONFIG_ARCH_SA1100) += gpio-sa1100.o
obj-$(CONFIG_GPIO_SCH) += gpio-sch.o
+obj-$(CONFIG_GPIO_SCH311X) += gpio-sch311x.o
obj-$(CONFIG_GPIO_SODAVILLE) += gpio-sodaville.o
obj-$(CONFIG_GPIO_SPEAR_SPICS) += gpio-spear-spics.o
obj-$(CONFIG_GPIO_STA2X11) += gpio-sta2x11.o
@@ -95,3 +97,4 @@
obj-$(CONFIG_GPIO_WM8350) += gpio-wm8350.o
obj-$(CONFIG_GPIO_WM8994) += gpio-wm8994.o
obj-$(CONFIG_GPIO_XILINX) += gpio-xilinx.o
+obj-$(CONFIG_GPIO_XTENSA) += gpio-xtensa.o
diff --git a/drivers/gpio/gpio-74x164.c b/drivers/gpio/gpio-74x164.c
index 1e04bf9..e4ae298 100644
--- a/drivers/gpio/gpio-74x164.c
+++ b/drivers/gpio/gpio-74x164.c
@@ -12,7 +12,6 @@
#include <linux/init.h>
#include <linux/mutex.h>
#include <linux/spi/spi.h>
-#include <linux/spi/74x164.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/slab.h>
@@ -21,7 +20,6 @@
#define GEN_74X164_NUMBER_GPIOS 8
struct gen_74x164_chip {
- struct spi_device *spi;
u8 *buffer;
struct gpio_chip gpio_chip;
struct mutex lock;
@@ -35,6 +33,7 @@
static int __gen_74x164_write_config(struct gen_74x164_chip *chip)
{
+ struct spi_device *spi = to_spi_device(chip->gpio_chip.dev);
struct spi_message message;
struct spi_transfer *msg_buf;
int i, ret = 0;
@@ -55,12 +54,12 @@
* byte of the buffer will end up in the last register.
*/
for (i = chip->registers - 1; i >= 0; i--) {
- msg_buf[i].tx_buf = chip->buffer +i;
+ msg_buf[i].tx_buf = chip->buffer + i;
msg_buf[i].len = sizeof(u8);
spi_message_add_tail(msg_buf + i, &message);
}
- ret = spi_sync(chip->spi, &message);
+ ret = spi_sync(spi, &message);
kfree(msg_buf);
@@ -108,14 +107,8 @@
static int gen_74x164_probe(struct spi_device *spi)
{
struct gen_74x164_chip *chip;
- struct gen_74x164_chip_platform_data *pdata;
int ret;
- if (!spi->dev.of_node) {
- dev_err(&spi->dev, "No device tree data available.\n");
- return -EINVAL;
- }
-
/*
* bits_per_word cannot be configured in platform data
*/
@@ -129,40 +122,32 @@
if (!chip)
return -ENOMEM;
- pdata = dev_get_platdata(&spi->dev);
- if (pdata && pdata->base)
- chip->gpio_chip.base = pdata->base;
- else
- chip->gpio_chip.base = -1;
-
- mutex_init(&chip->lock);
-
spi_set_drvdata(spi, chip);
- chip->spi = spi;
-
chip->gpio_chip.label = spi->modalias;
chip->gpio_chip.direction_output = gen_74x164_direction_output;
chip->gpio_chip.get = gen_74x164_get_value;
chip->gpio_chip.set = gen_74x164_set_value;
+ chip->gpio_chip.base = -1;
- if (of_property_read_u32(spi->dev.of_node, "registers-number", &chip->registers)) {
- dev_err(&spi->dev, "Missing registers-number property in the DT.\n");
- ret = -EINVAL;
- goto exit_destroy;
+ if (of_property_read_u32(spi->dev.of_node, "registers-number",
+ &chip->registers)) {
+ dev_err(&spi->dev,
+ "Missing registers-number property in the DT.\n");
+ return -EINVAL;
}
chip->gpio_chip.ngpio = GEN_74X164_NUMBER_GPIOS * chip->registers;
chip->buffer = devm_kzalloc(&spi->dev, chip->registers, GFP_KERNEL);
- if (!chip->buffer) {
- ret = -ENOMEM;
- goto exit_destroy;
- }
+ if (!chip->buffer)
+ return -ENOMEM;
- chip->gpio_chip.can_sleep = 1;
+ chip->gpio_chip.can_sleep = true;
chip->gpio_chip.dev = &spi->dev;
chip->gpio_chip.owner = THIS_MODULE;
+ mutex_init(&chip->lock);
+
ret = __gen_74x164_write_config(chip);
if (ret) {
dev_err(&spi->dev, "Failed writing: %d\n", ret);
@@ -170,31 +155,23 @@
}
ret = gpiochip_add(&chip->gpio_chip);
- if (ret)
- goto exit_destroy;
-
- return ret;
+ if (!ret)
+ return 0;
exit_destroy:
mutex_destroy(&chip->lock);
+
return ret;
}
static int gen_74x164_remove(struct spi_device *spi)
{
- struct gen_74x164_chip *chip;
+ struct gen_74x164_chip *chip = spi_get_drvdata(spi);
int ret;
- chip = spi_get_drvdata(spi);
- if (chip == NULL)
- return -ENODEV;
-
ret = gpiochip_remove(&chip->gpio_chip);
if (!ret)
mutex_destroy(&chip->lock);
- else
- dev_err(&spi->dev, "Failed to remove the GPIO controller: %d\n",
- ret);
return ret;
}
diff --git a/drivers/gpio/gpio-adnp.c b/drivers/gpio/gpio-adnp.c
index b204033..6fc6206 100644
--- a/drivers/gpio/gpio-adnp.c
+++ b/drivers/gpio/gpio-adnp.c
@@ -260,7 +260,7 @@
chip->direction_output = adnp_gpio_direction_output;
chip->get = adnp_gpio_get;
chip->set = adnp_gpio_set;
- chip->can_sleep = 1;
+ chip->can_sleep = true;
if (IS_ENABLED(CONFIG_DEBUG_FS))
chip->dbg_show = adnp_gpio_dbg_show;
@@ -408,6 +408,27 @@
mutex_unlock(&adnp->irq_lock);
}
+static unsigned int adnp_irq_startup(struct irq_data *data)
+{
+ struct adnp *adnp = irq_data_get_irq_chip_data(data);
+
+ if (gpio_lock_as_irq(&adnp->gpio, data->hwirq))
+ dev_err(adnp->gpio.dev,
+ "unable to lock HW IRQ %lu for IRQ\n",
+ data->hwirq);
+ /* Satisfy the .enable semantics by unmasking the line */
+ adnp_irq_unmask(data);
+ return 0;
+}
+
+static void adnp_irq_shutdown(struct irq_data *data)
+{
+ struct adnp *adnp = irq_data_get_irq_chip_data(data);
+
+ adnp_irq_mask(data);
+ gpio_unlock_as_irq(&adnp->gpio, data->hwirq);
+}
+
static struct irq_chip adnp_irq_chip = {
.name = "gpio-adnp",
.irq_mask = adnp_irq_mask,
@@ -415,6 +436,8 @@
.irq_set_type = adnp_irq_set_type,
.irq_bus_lock = adnp_irq_bus_lock,
.irq_bus_sync_unlock = adnp_irq_bus_unlock,
+ .irq_startup = adnp_irq_startup,
+ .irq_shutdown = adnp_irq_shutdown,
};
static int adnp_irq_map(struct irq_domain *domain, unsigned int irq,
diff --git a/drivers/gpio/gpio-adp5520.c b/drivers/gpio/gpio-adp5520.c
index 084337d..6132659 100644
--- a/drivers/gpio/gpio-adp5520.c
+++ b/drivers/gpio/gpio-adp5520.c
@@ -127,7 +127,7 @@
gc->direction_output = adp5520_gpio_direction_output;
gc->get = adp5520_gpio_get_value;
gc->set = adp5520_gpio_set_value;
- gc->can_sleep = 1;
+ gc->can_sleep = true;
gc->base = pdata->gpio_start;
gc->ngpio = gpios;
diff --git a/drivers/gpio/gpio-adp5588.c b/drivers/gpio/gpio-adp5588.c
index 90fc4c9..3f190e6 100644
--- a/drivers/gpio/gpio-adp5588.c
+++ b/drivers/gpio/gpio-adp5588.c
@@ -380,7 +380,7 @@
gc->direction_output = adp5588_gpio_direction_output;
gc->get = adp5588_gpio_get_value;
gc->set = adp5588_gpio_set_value;
- gc->can_sleep = 1;
+ gc->can_sleep = true;
gc->base = pdata->gpio_start;
gc->ngpio = ADP5588_MAXGPIO;
diff --git a/drivers/gpio/gpio-amd8111.c b/drivers/gpio/gpio-amd8111.c
index 710fafc..94e9992 100644
--- a/drivers/gpio/gpio-amd8111.c
+++ b/drivers/gpio/gpio-amd8111.c
@@ -60,7 +60,7 @@
* register a pci_driver, because someone else might one day
* want to register another driver on the same PCI id.
*/
-static DEFINE_PCI_DEVICE_TABLE(pci_tbl) = {
+static const struct pci_device_id pci_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS), 0 },
{ 0, }, /* terminate list */
};
diff --git a/drivers/gpio/gpio-arizona.c b/drivers/gpio/gpio-arizona.c
index dceb5dc..29bdff5 100644
--- a/drivers/gpio/gpio-arizona.c
+++ b/drivers/gpio/gpio-arizona.c
@@ -91,7 +91,7 @@
.get = arizona_gpio_get,
.direction_output = arizona_gpio_direction_out,
.set = arizona_gpio_set,
- .can_sleep = 1,
+ .can_sleep = true,
};
static int arizona_gpio_probe(struct platform_device *pdev)
diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c
index 54c18c2..233d088 100644
--- a/drivers/gpio/gpio-bcm-kona.c
+++ b/drivers/gpio/gpio-bcm-kona.c
@@ -449,12 +449,34 @@
chained_irq_exit(chip, desc);
}
+static unsigned int bcm_kona_gpio_irq_startup(struct irq_data *d)
+{
+ struct bcm_kona_gpio *kona_gpio = irq_data_get_irq_chip_data(d);
+
+ if (gpio_lock_as_irq(&kona_gpio->gpio_chip, d->hwirq))
+ dev_err(kona_gpio->gpio_chip.dev,
+ "unable to lock HW IRQ %lu for IRQ\n",
+ d->hwirq);
+ bcm_kona_gpio_irq_unmask(d);
+ return 0;
+}
+
+static void bcm_kona_gpio_irq_shutdown(struct irq_data *d)
+{
+ struct bcm_kona_gpio *kona_gpio = irq_data_get_irq_chip_data(d);
+
+ bcm_kona_gpio_irq_mask(d);
+ gpio_unlock_as_irq(&kona_gpio->gpio_chip, d->hwirq);
+}
+
static struct irq_chip bcm_gpio_irq_chip = {
.name = "bcm-kona-gpio",
.irq_ack = bcm_kona_gpio_irq_ack,
.irq_mask = bcm_kona_gpio_irq_mask,
.irq_unmask = bcm_kona_gpio_irq_unmask,
.irq_set_type = bcm_kona_gpio_irq_set_type,
+ .irq_startup = bcm_kona_gpio_irq_startup,
+ .irq_shutdown = bcm_kona_gpio_irq_shutdown,
};
static struct __initconst of_device_id bcm_kona_gpio_of_match[] = {
diff --git a/drivers/gpio/gpio-bt8xx.c b/drivers/gpio/gpio-bt8xx.c
index 9dfe36f..ecb3ca2d 100644
--- a/drivers/gpio/gpio-bt8xx.c
+++ b/drivers/gpio/gpio-bt8xx.c
@@ -169,7 +169,7 @@
c->dbg_show = NULL;
c->base = modparam_gpiobase;
c->ngpio = BT8XXGPIO_NR_GPIOS;
- c->can_sleep = 0;
+ c->can_sleep = false;
}
static int bt8xxgpio_probe(struct pci_dev *dev,
@@ -308,7 +308,7 @@
#define bt8xxgpio_resume NULL
#endif /* CONFIG_PM */
-static DEFINE_PCI_DEVICE_TABLE(bt8xxgpio_pci_tbl) = {
+static const struct pci_device_id bt8xxgpio_pci_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT848) },
{ PCI_DEVICE(PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT849) },
{ PCI_DEVICE(PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT878) },
diff --git a/drivers/gpio/gpio-clps711x.c b/drivers/gpio/gpio-clps711x.c
index 0924f20..d355027 100644
--- a/drivers/gpio/gpio-clps711x.c
+++ b/drivers/gpio/gpio-clps711x.c
@@ -77,7 +77,7 @@
return bgpio_remove(bgc);
}
-static const struct of_device_id clps711x_gpio_ids[] = {
+static const struct of_device_id __maybe_unused clps711x_gpio_ids[] = {
{ .compatible = "cirrus,clps711x-gpio" },
{ }
};
@@ -87,7 +87,7 @@
.driver = {
.name = "clps711x-gpio",
.owner = THIS_MODULE,
- .of_match_table = clps711x_gpio_ids,
+ .of_match_table = of_match_ptr(clps711x_gpio_ids),
},
.probe = clps711x_gpio_probe,
.remove = clps711x_gpio_remove,
diff --git a/drivers/gpio/gpio-da9052.c b/drivers/gpio/gpio-da9052.c
index 9b77dc0..416cdf7 100644
--- a/drivers/gpio/gpio-da9052.c
+++ b/drivers/gpio/gpio-da9052.c
@@ -200,7 +200,7 @@
.direction_input = da9052_gpio_direction_input,
.direction_output = da9052_gpio_direction_output,
.to_irq = da9052_gpio_to_irq,
- .can_sleep = 1,
+ .can_sleep = true,
.ngpio = 16,
.base = -1,
};
diff --git a/drivers/gpio/gpio-da9055.c b/drivers/gpio/gpio-da9055.c
index 7ef0820..f992997 100644
--- a/drivers/gpio/gpio-da9055.c
+++ b/drivers/gpio/gpio-da9055.c
@@ -134,7 +134,7 @@
.direction_input = da9055_gpio_direction_input,
.direction_output = da9055_gpio_direction_output,
.to_irq = da9055_gpio_to_irq,
- .can_sleep = 1,
+ .can_sleep = true,
.ngpio = 3,
.base = -1,
};
diff --git a/drivers/gpio/gpio-em.c b/drivers/gpio/gpio-em.c
index ec19036..1e98a98 100644
--- a/drivers/gpio/gpio-em.c
+++ b/drivers/gpio/gpio-em.c
@@ -99,6 +99,27 @@
em_gio_write(p, GIO_IEN, BIT(irqd_to_hwirq(d)));
}
+static unsigned int em_gio_irq_startup(struct irq_data *d)
+{
+ struct em_gio_priv *p = irq_data_get_irq_chip_data(d);
+
+ if (gpio_lock_as_irq(&p->gpio_chip, irqd_to_hwirq(d)))
+ dev_err(p->gpio_chip.dev,
+ "unable to lock HW IRQ %lu for IRQ\n",
+ irqd_to_hwirq(d));
+ em_gio_irq_enable(d);
+ return 0;
+}
+
+static void em_gio_irq_shutdown(struct irq_data *d)
+{
+ struct em_gio_priv *p = irq_data_get_irq_chip_data(d);
+
+ em_gio_irq_disable(d);
+ gpio_unlock_as_irq(&p->gpio_chip, irqd_to_hwirq(d));
+}
+
+
#define GIO_ASYNC(x) (x + 8)
static unsigned char em_gio_sense_table[IRQ_TYPE_SENSE_MASK + 1] = {
@@ -328,6 +349,7 @@
gpio_chip->request = em_gio_request;
gpio_chip->free = em_gio_free;
gpio_chip->label = name;
+ gpio_chip->dev = &pdev->dev;
gpio_chip->owner = THIS_MODULE;
gpio_chip->base = pdata->gpio_base;
gpio_chip->ngpio = pdata->number_of_pins;
@@ -336,10 +358,10 @@
irq_chip->name = name;
irq_chip->irq_mask = em_gio_irq_disable;
irq_chip->irq_unmask = em_gio_irq_enable;
- irq_chip->irq_enable = em_gio_irq_enable;
- irq_chip->irq_disable = em_gio_irq_disable;
irq_chip->irq_set_type = em_gio_irq_set_type;
- irq_chip->flags = IRQCHIP_SKIP_SET_WAKE;
+ irq_chip->irq_startup = em_gio_irq_startup;
+ irq_chip->irq_shutdown = em_gio_irq_shutdown;
+ irq_chip->flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND;
p->irq_domain = irq_domain_add_simple(pdev->dev.of_node,
pdata->number_of_pins,
diff --git a/drivers/gpio/gpio-f7188x.c b/drivers/gpio/gpio-f7188x.c
index 9cb8320..8f73ee0 100644
--- a/drivers/gpio/gpio-f7188x.c
+++ b/drivers/gpio/gpio-f7188x.c
@@ -135,6 +135,7 @@
.set = f7188x_gpio_set, \
.base = _base, \
.ngpio = _ngpio, \
+ .can_sleep = true, \
}, \
.regbase = _regbase, \
}
diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c
index 814addb..f5bf3c3 100644
--- a/drivers/gpio/gpio-ich.c
+++ b/drivers/gpio/gpio-ich.c
@@ -252,7 +252,7 @@
chip->direction_output = ichx_gpio_direction_output;
chip->base = modparam_gpiobase;
chip->ngpio = ichx_priv.desc->ngpio;
- chip->can_sleep = 0;
+ chip->can_sleep = false;
chip->dbg_show = NULL;
}
diff --git a/drivers/gpio/gpio-intel-mid.c b/drivers/gpio/gpio-intel-mid.c
index be803af..d1b50ef 100644
--- a/drivers/gpio/gpio-intel-mid.c
+++ b/drivers/gpio/gpio-intel-mid.c
@@ -235,11 +235,33 @@
{
}
+static unsigned int intel_mid_irq_startup(struct irq_data *d)
+{
+ struct intel_mid_gpio *priv = irq_data_get_irq_chip_data(d);
+
+ if (gpio_lock_as_irq(&priv->chip, irqd_to_hwirq(d)))
+ dev_err(priv->chip.dev,
+ "unable to lock HW IRQ %lu for IRQ\n",
+ irqd_to_hwirq(d));
+ intel_mid_irq_unmask(d);
+ return 0;
+}
+
+static void intel_mid_irq_shutdown(struct irq_data *d)
+{
+ struct intel_mid_gpio *priv = irq_data_get_irq_chip_data(d);
+
+ intel_mid_irq_mask(d);
+ gpio_unlock_as_irq(&priv->chip, irqd_to_hwirq(d));
+}
+
static struct irq_chip intel_mid_irqchip = {
.name = "INTEL_MID-GPIO",
.irq_mask = intel_mid_irq_mask,
.irq_unmask = intel_mid_irq_unmask,
.irq_set_type = intel_mid_irq_type,
+ .irq_startup = intel_mid_irq_startup,
+ .irq_shutdown = intel_mid_irq_shutdown,
};
static const struct intel_mid_gpio_ddata gpio_lincroft = {
@@ -275,7 +297,7 @@
.chip_irq_type = INTEL_MID_IRQ_TYPE_EDGE,
};
-static DEFINE_PCI_DEVICE_TABLE(intel_gpio_ids) = {
+static const struct pci_device_id intel_gpio_ids[] = {
{
/* Lincroft */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x080f),
@@ -358,8 +380,7 @@
{
struct intel_mid_gpio *priv = d->host_data;
- irq_set_chip_and_handler_name(irq, &intel_mid_irqchip,
- handle_simple_irq, "demux");
+ irq_set_chip_and_handler(irq, &intel_mid_irqchip, handle_simple_irq);
irq_set_chip_data(irq, priv);
irq_set_irq_type(irq, IRQ_TYPE_NONE);
@@ -418,6 +439,7 @@
priv->reg_base = pcim_iomap_table(pdev)[0];
priv->chip.label = dev_name(&pdev->dev);
+ priv->chip.dev = &pdev->dev;
priv->chip.request = intel_gpio_request;
priv->chip.direction_input = intel_gpio_direction_input;
priv->chip.direction_output = intel_gpio_direction_output;
@@ -426,7 +448,7 @@
priv->chip.to_irq = intel_gpio_to_irq;
priv->chip.base = gpio_base;
priv->chip.ngpio = ddata->ngpio;
- priv->chip.can_sleep = 0;
+ priv->chip.can_sleep = false;
priv->pdev = pdev;
spin_lock_init(&priv->lock);
diff --git a/drivers/gpio/gpio-kempld.c b/drivers/gpio/gpio-kempld.c
index efdc392..c6d8817 100644
--- a/drivers/gpio/gpio-kempld.c
+++ b/drivers/gpio/gpio-kempld.c
@@ -167,7 +167,7 @@
chip->label = "gpio-kempld";
chip->owner = THIS_MODULE;
chip->dev = dev;
- chip->can_sleep = 1;
+ chip->can_sleep = true;
if (pdata && pdata->gpio_base)
chip->base = pdata->gpio_base;
else
diff --git a/drivers/gpio/gpio-ks8695.c b/drivers/gpio/gpio-ks8695.c
index a3ac66e..464a83d 100644
--- a/drivers/gpio/gpio-ks8695.c
+++ b/drivers/gpio/gpio-ks8695.c
@@ -228,7 +228,7 @@
.to_irq = ks8695_gpio_to_irq,
.base = 0,
.ngpio = 16,
- .can_sleep = 0,
+ .can_sleep = false,
};
/* Register the GPIOs */
diff --git a/drivers/gpio/gpio-lpc32xx.c b/drivers/gpio/gpio-lpc32xx.c
index 2d5555d..225344d 100644
--- a/drivers/gpio/gpio-lpc32xx.c
+++ b/drivers/gpio/gpio-lpc32xx.c
@@ -25,10 +25,10 @@
#include <linux/of_gpio.h>
#include <linux/platform_device.h>
#include <linux/module.h>
+#include <linux/platform_data/gpio-lpc32xx.h>
#include <mach/hardware.h>
#include <mach/platform.h>
-#include <mach/gpio-lpc32xx.h>
#include <mach/irqs.h>
#define LPC32XX_GPIO_P3_INP_STATE _GPREG(0x000)
@@ -448,7 +448,7 @@
.base = LPC32XX_GPIO_P0_GRP,
.ngpio = LPC32XX_GPIO_P0_MAX,
.names = gpio_p0_names,
- .can_sleep = 0,
+ .can_sleep = false,
},
.gpio_grp = &gpio_grp_regs_p0,
},
@@ -464,7 +464,7 @@
.base = LPC32XX_GPIO_P1_GRP,
.ngpio = LPC32XX_GPIO_P1_MAX,
.names = gpio_p1_names,
- .can_sleep = 0,
+ .can_sleep = false,
},
.gpio_grp = &gpio_grp_regs_p1,
},
@@ -479,7 +479,7 @@
.base = LPC32XX_GPIO_P2_GRP,
.ngpio = LPC32XX_GPIO_P2_MAX,
.names = gpio_p2_names,
- .can_sleep = 0,
+ .can_sleep = false,
},
.gpio_grp = &gpio_grp_regs_p2,
},
@@ -495,7 +495,7 @@
.base = LPC32XX_GPIO_P3_GRP,
.ngpio = LPC32XX_GPIO_P3_MAX,
.names = gpio_p3_names,
- .can_sleep = 0,
+ .can_sleep = false,
},
.gpio_grp = &gpio_grp_regs_p3,
},
@@ -509,7 +509,7 @@
.base = LPC32XX_GPI_P3_GRP,
.ngpio = LPC32XX_GPI_P3_MAX,
.names = gpi_p3_names,
- .can_sleep = 0,
+ .can_sleep = false,
},
.gpio_grp = &gpio_grp_regs_p3,
},
@@ -523,7 +523,7 @@
.base = LPC32XX_GPO_P3_GRP,
.ngpio = LPC32XX_GPO_P3_MAX,
.names = gpo_p3_names,
- .can_sleep = 0,
+ .can_sleep = false,
},
.gpio_grp = &gpio_grp_regs_p3,
},
diff --git a/drivers/gpio/gpio-lynxpoint.c b/drivers/gpio/gpio-lynxpoint.c
index a080474..66b1853 100644
--- a/drivers/gpio/gpio-lynxpoint.c
+++ b/drivers/gpio/gpio-lynxpoint.c
@@ -301,6 +301,26 @@
spin_unlock_irqrestore(&lg->lock, flags);
}
+static unsigned int lp_irq_startup(struct irq_data *d)
+{
+ struct lp_gpio *lg = irq_data_get_irq_chip_data(d);
+
+ if (gpio_lock_as_irq(&lg->chip, irqd_to_hwirq(d)))
+ dev_err(lg->chip.dev,
+ "unable to lock HW IRQ %lu for IRQ\n",
+ irqd_to_hwirq(d));
+ lp_irq_enable(d);
+ return 0;
+}
+
+static void lp_irq_shutdown(struct irq_data *d)
+{
+ struct lp_gpio *lg = irq_data_get_irq_chip_data(d);
+
+ lp_irq_disable(d);
+ gpio_unlock_as_irq(&lg->chip, irqd_to_hwirq(d));
+}
+
static struct irq_chip lp_irqchip = {
.name = "LP-GPIO",
.irq_mask = lp_irq_mask,
@@ -308,6 +328,8 @@
.irq_enable = lp_irq_enable,
.irq_disable = lp_irq_disable,
.irq_set_type = lp_irq_type,
+ .irq_startup = lp_irq_startup,
+ .irq_shutdown = lp_irq_shutdown,
.flags = IRQCHIP_SKIP_SET_WAKE,
};
@@ -331,8 +353,7 @@
{
struct lp_gpio *lg = d->host_data;
- irq_set_chip_and_handler_name(irq, &lp_irqchip, handle_simple_irq,
- "demux");
+ irq_set_chip_and_handler(irq, &lp_irqchip, handle_simple_irq);
irq_set_chip_data(irq, lg);
irq_set_irq_type(irq, IRQ_TYPE_NONE);
@@ -392,7 +413,7 @@
gc->set = lp_gpio_set;
gc->base = -1;
gc->ngpio = LP_NUM_GPIO;
- gc->can_sleep = 0;
+ gc->can_sleep = false;
gc->dev = dev;
/* set up interrupts */
@@ -438,6 +459,7 @@
static const struct acpi_device_id lynxpoint_gpio_acpi_match[] = {
{ "INT33C7", 0 },
+ { "INT3437", 0 },
{ }
};
MODULE_DEVICE_TABLE(acpi, lynxpoint_gpio_acpi_match);
@@ -469,4 +491,15 @@
return platform_driver_register(&lp_gpio_driver);
}
+static void __exit lp_gpio_exit(void)
+{
+ platform_driver_unregister(&lp_gpio_driver);
+}
+
subsys_initcall(lp_gpio_init);
+module_exit(lp_gpio_exit);
+
+MODULE_AUTHOR("Mathias Nyman (Intel)");
+MODULE_DESCRIPTION("GPIO interface for Intel Lynxpoint");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:lp_gpio");
diff --git a/drivers/gpio/gpio-max730x.c b/drivers/gpio/gpio-max730x.c
index f4f4ed1..8672755 100644
--- a/drivers/gpio/gpio-max730x.c
+++ b/drivers/gpio/gpio-max730x.c
@@ -188,7 +188,7 @@
ts->chip.set = max7301_set;
ts->chip.ngpio = PIN_NUMBER;
- ts->chip.can_sleep = 1;
+ ts->chip.can_sleep = true;
ts->chip.dev = dev;
ts->chip.owner = THIS_MODULE;
@@ -220,7 +220,6 @@
return ret;
exit_destroy:
- dev_set_drvdata(dev, NULL);
mutex_destroy(&ts->lock);
return ret;
}
@@ -234,8 +233,6 @@
if (ts == NULL)
return -ENODEV;
- dev_set_drvdata(dev, NULL);
-
/* Power down the chip and disable IRQ output */
ts->write(dev, 0x04, 0x00);
diff --git a/drivers/gpio/gpio-max732x.c b/drivers/gpio/gpio-max732x.c
index 91ad74d..36cb290 100644
--- a/drivers/gpio/gpio-max732x.c
+++ b/drivers/gpio/gpio-max732x.c
@@ -564,7 +564,7 @@
gc->set = max732x_gpio_set_value;
}
gc->get = max732x_gpio_get_value;
- gc->can_sleep = 1;
+ gc->can_sleep = true;
gc->base = gpio_start;
gc->ngpio = port;
diff --git a/drivers/gpio/gpio-mc33880.c b/drivers/gpio/gpio-mc33880.c
index c0b7835..553a80a 100644
--- a/drivers/gpio/gpio-mc33880.c
+++ b/drivers/gpio/gpio-mc33880.c
@@ -115,7 +115,7 @@
mc->chip.set = mc33880_set;
mc->chip.base = pdata->base;
mc->chip.ngpio = PIN_NUMBER;
- mc->chip.can_sleep = 1;
+ mc->chip.can_sleep = true;
mc->chip.dev = &spi->dev;
mc->chip.owner = THIS_MODULE;
diff --git a/drivers/gpio/gpio-mc9s08dz60.c b/drivers/gpio/gpio-mc9s08dz60.c
index 0ab7000..dce35ff 100644
--- a/drivers/gpio/gpio-mc9s08dz60.c
+++ b/drivers/gpio/gpio-mc9s08dz60.c
@@ -102,7 +102,7 @@
mc9s->chip.dev = &client->dev;
mc9s->chip.owner = THIS_MODULE;
mc9s->chip.ngpio = GPIO_NUM;
- mc9s->chip.can_sleep = 1;
+ mc9s->chip.can_sleep = true;
mc9s->chip.get = mc9s08dz60_get_value;
mc9s->chip.set = mc9s08dz60_set_value;
mc9s->chip.direction_output = mc9s08dz60_direction_output;
diff --git a/drivers/gpio/gpio-mcp23s08.c b/drivers/gpio/gpio-mcp23s08.c
index 2deb0c5..1ac288e 100644
--- a/drivers/gpio/gpio-mcp23s08.c
+++ b/drivers/gpio/gpio-mcp23s08.c
@@ -1,5 +1,13 @@
/*
- * MCP23S08 SPI/GPIO gpio expander driver
+ * MCP23S08 SPI/I2C GPIO gpio expander driver
+ *
+ * The inputs and outputs of the mcp23s08, mcp23s17, mcp23008 and mcp23017 are
+ * supported.
+ * For the I2C versions of the chips (mcp23008 and mcp23017) generation of
+ * interrupts is also supported.
+ * The hardware of the SPI versions of the chips (mcp23s08 and mcp23s17) is
+ * also capable of generating interrupts, but the linux driver does not
+ * support that yet.
*/
#include <linux/kernel.h>
@@ -12,7 +20,8 @@
#include <linux/spi/mcp23s08.h>
#include <linux/slab.h>
#include <asm/byteorder.h>
-#include <linux/of.h>
+#include <linux/interrupt.h>
+#include <linux/of_irq.h>
#include <linux/of_device.h>
/**
@@ -34,6 +43,7 @@
#define MCP_DEFVAL 0x03
#define MCP_INTCON 0x04
#define MCP_IOCON 0x05
+# define IOCON_MIRROR (1 << 6)
# define IOCON_SEQOP (1 << 5)
# define IOCON_HAEN (1 << 3)
# define IOCON_ODR (1 << 2)
@@ -57,8 +67,14 @@
u8 addr;
u16 cache[11];
+ u16 irq_rise;
+ u16 irq_fall;
+ int irq;
+ bool irq_controller;
/* lock protects the cached values */
struct mutex lock;
+ struct mutex irq_lock;
+ struct irq_domain *irq_domain;
struct gpio_chip chip;
@@ -77,6 +93,11 @@
struct mcp23s08 chip[];
};
+/* This lock class tells lockdep that GPIO irqs are in a different
+ * category than their parents, so it won't report false recursion.
+ */
+static struct lock_class_key gpio_lock_class;
+
/*----------------------------------------------------------------------*/
#if IS_ENABLED(CONFIG_I2C)
@@ -316,6 +337,195 @@
}
/*----------------------------------------------------------------------*/
+static irqreturn_t mcp23s08_irq(int irq, void *data)
+{
+ struct mcp23s08 *mcp = data;
+ int intcap, intf, i;
+ unsigned int child_irq;
+
+ mutex_lock(&mcp->lock);
+ intf = mcp->ops->read(mcp, MCP_INTF);
+ if (intf < 0) {
+ mutex_unlock(&mcp->lock);
+ return IRQ_HANDLED;
+ }
+
+ mcp->cache[MCP_INTF] = intf;
+
+ intcap = mcp->ops->read(mcp, MCP_INTCAP);
+ if (intcap < 0) {
+ mutex_unlock(&mcp->lock);
+ return IRQ_HANDLED;
+ }
+
+ mcp->cache[MCP_INTCAP] = intcap;
+ mutex_unlock(&mcp->lock);
+
+
+ for (i = 0; i < mcp->chip.ngpio; i++) {
+ if ((BIT(i) & mcp->cache[MCP_INTF]) &&
+ ((BIT(i) & intcap & mcp->irq_rise) ||
+ (mcp->irq_fall & ~intcap & BIT(i)))) {
+ child_irq = irq_find_mapping(mcp->irq_domain, i);
+ handle_nested_irq(child_irq);
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int mcp23s08_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+ struct mcp23s08 *mcp = container_of(chip, struct mcp23s08, chip);
+
+ return irq_find_mapping(mcp->irq_domain, offset);
+}
+
+static void mcp23s08_irq_mask(struct irq_data *data)
+{
+ struct mcp23s08 *mcp = irq_data_get_irq_chip_data(data);
+ unsigned int pos = data->hwirq;
+
+ mcp->cache[MCP_GPINTEN] &= ~BIT(pos);
+}
+
+static void mcp23s08_irq_unmask(struct irq_data *data)
+{
+ struct mcp23s08 *mcp = irq_data_get_irq_chip_data(data);
+ unsigned int pos = data->hwirq;
+
+ mcp->cache[MCP_GPINTEN] |= BIT(pos);
+}
+
+static int mcp23s08_irq_set_type(struct irq_data *data, unsigned int type)
+{
+ struct mcp23s08 *mcp = irq_data_get_irq_chip_data(data);
+ unsigned int pos = data->hwirq;
+ int status = 0;
+
+ if ((type & IRQ_TYPE_EDGE_BOTH) == IRQ_TYPE_EDGE_BOTH) {
+ mcp->cache[MCP_INTCON] &= ~BIT(pos);
+ mcp->irq_rise |= BIT(pos);
+ mcp->irq_fall |= BIT(pos);
+ } else if (type & IRQ_TYPE_EDGE_RISING) {
+ mcp->cache[MCP_INTCON] &= ~BIT(pos);
+ mcp->irq_rise |= BIT(pos);
+ mcp->irq_fall &= ~BIT(pos);
+ } else if (type & IRQ_TYPE_EDGE_FALLING) {
+ mcp->cache[MCP_INTCON] &= ~BIT(pos);
+ mcp->irq_rise &= ~BIT(pos);
+ mcp->irq_fall |= BIT(pos);
+ } else
+ return -EINVAL;
+
+ return status;
+}
+
+static void mcp23s08_irq_bus_lock(struct irq_data *data)
+{
+ struct mcp23s08 *mcp = irq_data_get_irq_chip_data(data);
+
+ mutex_lock(&mcp->irq_lock);
+}
+
+static void mcp23s08_irq_bus_unlock(struct irq_data *data)
+{
+ struct mcp23s08 *mcp = irq_data_get_irq_chip_data(data);
+
+ mutex_lock(&mcp->lock);
+ mcp->ops->write(mcp, MCP_GPINTEN, mcp->cache[MCP_GPINTEN]);
+ mcp->ops->write(mcp, MCP_DEFVAL, mcp->cache[MCP_DEFVAL]);
+ mcp->ops->write(mcp, MCP_INTCON, mcp->cache[MCP_INTCON]);
+ mutex_unlock(&mcp->lock);
+ mutex_unlock(&mcp->irq_lock);
+}
+
+static unsigned int mcp23s08_irq_startup(struct irq_data *data)
+{
+ struct mcp23s08 *mcp = irq_data_get_irq_chip_data(data);
+
+ if (gpio_lock_as_irq(&mcp->chip, data->hwirq))
+ dev_err(mcp->chip.dev,
+ "unable to lock HW IRQ %lu for IRQ usage\n",
+ data->hwirq);
+
+ mcp23s08_irq_unmask(data);
+ return 0;
+}
+
+static void mcp23s08_irq_shutdown(struct irq_data *data)
+{
+ struct mcp23s08 *mcp = irq_data_get_irq_chip_data(data);
+
+ mcp23s08_irq_mask(data);
+ gpio_unlock_as_irq(&mcp->chip, data->hwirq);
+}
+
+static struct irq_chip mcp23s08_irq_chip = {
+ .name = "gpio-mcp23xxx",
+ .irq_mask = mcp23s08_irq_mask,
+ .irq_unmask = mcp23s08_irq_unmask,
+ .irq_set_type = mcp23s08_irq_set_type,
+ .irq_bus_lock = mcp23s08_irq_bus_lock,
+ .irq_bus_sync_unlock = mcp23s08_irq_bus_unlock,
+ .irq_startup = mcp23s08_irq_startup,
+ .irq_shutdown = mcp23s08_irq_shutdown,
+};
+
+static int mcp23s08_irq_setup(struct mcp23s08 *mcp)
+{
+ struct gpio_chip *chip = &mcp->chip;
+ int err, irq, j;
+
+ mutex_init(&mcp->irq_lock);
+
+ mcp->irq_domain = irq_domain_add_linear(chip->of_node, chip->ngpio,
+ &irq_domain_simple_ops, mcp);
+ if (!mcp->irq_domain)
+ return -ENODEV;
+
+ err = devm_request_threaded_irq(chip->dev, mcp->irq, NULL, mcp23s08_irq,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ dev_name(chip->dev), mcp);
+ if (err != 0) {
+ dev_err(chip->dev, "unable to request IRQ#%d: %d\n",
+ mcp->irq, err);
+ return err;
+ }
+
+ chip->to_irq = mcp23s08_gpio_to_irq;
+
+ for (j = 0; j < mcp->chip.ngpio; j++) {
+ irq = irq_create_mapping(mcp->irq_domain, j);
+ irq_set_lockdep_class(irq, &gpio_lock_class);
+ irq_set_chip_data(irq, mcp);
+ irq_set_chip(irq, &mcp23s08_irq_chip);
+ irq_set_nested_thread(irq, true);
+#ifdef CONFIG_ARM
+ set_irq_flags(irq, IRQF_VALID);
+#else
+ irq_set_noprobe(irq);
+#endif
+ }
+ return 0;
+}
+
+static void mcp23s08_irq_teardown(struct mcp23s08 *mcp)
+{
+ unsigned int irq, i;
+
+ free_irq(mcp->irq, mcp);
+
+ for (i = 0; i < mcp->chip.ngpio; i++) {
+ irq = irq_find_mapping(mcp->irq_domain, i);
+ if (irq > 0)
+ irq_dispose_mapping(irq);
+ }
+
+ irq_domain_remove(mcp->irq_domain);
+}
+
+/*----------------------------------------------------------------------*/
#ifdef CONFIG_DEBUG_FS
@@ -370,10 +580,11 @@
/*----------------------------------------------------------------------*/
static int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev,
- void *data, unsigned addr,
- unsigned type, unsigned base, unsigned pullups)
+ void *data, unsigned addr, unsigned type,
+ unsigned base, unsigned pullups)
{
int status;
+ bool mirror = false;
mutex_init(&mcp->lock);
@@ -425,20 +636,32 @@
}
mcp->chip.base = base;
- mcp->chip.can_sleep = 1;
+ mcp->chip.can_sleep = true;
mcp->chip.dev = dev;
mcp->chip.owner = THIS_MODULE;
/* verify MCP_IOCON.SEQOP = 0, so sequential reads work,
* and MCP_IOCON.HAEN = 1, so we work with all chips.
*/
+
status = mcp->ops->read(mcp, MCP_IOCON);
if (status < 0)
goto fail;
- if ((status & IOCON_SEQOP) || !(status & IOCON_HAEN)) {
+
+ mcp->irq_controller = of_property_read_bool(mcp->chip.of_node,
+ "interrupt-controller");
+ if (mcp->irq && mcp->irq_controller && (type == MCP_TYPE_017))
+ mirror = of_property_read_bool(mcp->chip.of_node,
+ "microchip,irq-mirror");
+
+ if ((status & IOCON_SEQOP) || !(status & IOCON_HAEN) || mirror) {
/* mcp23s17 has IOCON twice, make sure they are in sync */
status &= ~(IOCON_SEQOP | (IOCON_SEQOP << 8));
status |= IOCON_HAEN | (IOCON_HAEN << 8);
+ status &= ~(IOCON_INTPOL | (IOCON_INTPOL << 8));
+ if (mirror)
+ status |= IOCON_MIRROR | (IOCON_MIRROR << 8);
+
status = mcp->ops->write(mcp, MCP_IOCON, status);
if (status < 0)
goto fail;
@@ -470,6 +693,16 @@
}
status = gpiochip_add(&mcp->chip);
+ if (status < 0)
+ goto fail;
+
+ if (mcp->irq && mcp->irq_controller) {
+ status = mcp23s08_irq_setup(mcp);
+ if (status) {
+ mcp23s08_irq_teardown(mcp);
+ goto fail;
+ }
+ }
fail:
if (status < 0)
dev_dbg(dev, "can't setup chip %d, --> %d\n",
@@ -546,6 +779,7 @@
if (match || !pdata) {
base = -1;
pullups = 0;
+ client->irq = irq_of_parse_and_map(client->dev.of_node, 0);
} else {
if (!gpio_is_valid(pdata->base)) {
dev_dbg(&client->dev, "invalid platform data\n");
@@ -559,6 +793,7 @@
if (!mcp)
return -ENOMEM;
+ mcp->irq = client->irq;
status = mcp23s08_probe_one(mcp, &client->dev, client, client->addr,
id->driver_data, base, pullups);
if (status)
@@ -579,6 +814,9 @@
struct mcp23s08 *mcp = i2c_get_clientdata(client);
int status;
+ if (client->irq && mcp->irq_controller)
+ mcp23s08_irq_teardown(mcp);
+
status = gpiochip_remove(&mcp->chip);
if (status == 0)
kfree(mcp);
@@ -640,7 +878,7 @@
match = of_match_device(of_match_ptr(mcp23s08_spi_of_match), &spi->dev);
if (match) {
- type = (int)match->data;
+ type = (int)(uintptr_t)match->data;
status = of_property_read_u32(spi->dev.of_node,
"microchip,spi-present-mask", &spi_present_mask);
if (status) {
diff --git a/drivers/gpio/gpio-ml-ioh.c b/drivers/gpio/gpio-ml-ioh.c
index 6da6d76..d51329d 100644
--- a/drivers/gpio/gpio-ml-ioh.c
+++ b/drivers/gpio/gpio-ml-ioh.c
@@ -242,7 +242,7 @@
gpio->dbg_show = NULL;
gpio->base = -1;
gpio->ngpio = num_port;
- gpio->can_sleep = 0;
+ gpio->can_sleep = false;
gpio->to_irq = ioh_gpio_to_irq;
}
@@ -596,7 +596,7 @@
#define ioh_gpio_resume NULL
#endif
-static DEFINE_PCI_DEVICE_TABLE(ioh_gpio_pcidev_id) = {
+static const struct pci_device_id ioh_gpio_pcidev_id[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_ROHM, 0x802E) },
{ 0, }
};
diff --git a/drivers/gpio/gpio-moxart.c b/drivers/gpio/gpio-moxart.c
new file mode 100644
index 0000000..2af9900
--- /dev/null
+++ b/drivers/gpio/gpio-moxart.c
@@ -0,0 +1,156 @@
+/*
+ * MOXA ART SoCs GPIO driver.
+ *
+ * Copyright (C) 2013 Jonas Jensen
+ *
+ * Jonas Jensen <jonas.jensen@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_gpio.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/bitops.h>
+
+#define GPIO_DATA_OUT 0x00
+#define GPIO_DATA_IN 0x04
+#define GPIO_PIN_DIRECTION 0x08
+
+struct moxart_gpio_chip {
+ struct gpio_chip gpio;
+ void __iomem *base;
+};
+
+static inline struct moxart_gpio_chip *to_moxart_gpio(struct gpio_chip *chip)
+{
+ return container_of(chip, struct moxart_gpio_chip, gpio);
+}
+
+static int moxart_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+ return pinctrl_request_gpio(offset);
+}
+
+static void moxart_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+ pinctrl_free_gpio(offset);
+}
+
+static int moxart_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+ struct moxart_gpio_chip *gc = to_moxart_gpio(chip);
+ void __iomem *ioaddr = gc->base + GPIO_PIN_DIRECTION;
+
+ writel(readl(ioaddr) & ~BIT(offset), ioaddr);
+ return 0;
+}
+
+static int moxart_gpio_direction_output(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ struct moxart_gpio_chip *gc = to_moxart_gpio(chip);
+ void __iomem *ioaddr = gc->base + GPIO_PIN_DIRECTION;
+
+ writel(readl(ioaddr) | BIT(offset), ioaddr);
+ return 0;
+}
+
+static void moxart_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+ struct moxart_gpio_chip *gc = to_moxart_gpio(chip);
+ void __iomem *ioaddr = gc->base + GPIO_DATA_OUT;
+ u32 reg = readl(ioaddr);
+
+ if (value)
+ reg = reg | BIT(offset);
+ else
+ reg = reg & ~BIT(offset);
+
+
+ writel(reg, ioaddr);
+}
+
+static int moxart_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+ struct moxart_gpio_chip *gc = to_moxart_gpio(chip);
+ u32 ret = readl(gc->base + GPIO_PIN_DIRECTION);
+
+ if (ret & BIT(offset))
+ return !!(readl(gc->base + GPIO_DATA_OUT) & BIT(offset));
+ else
+ return !!(readl(gc->base + GPIO_DATA_IN) & BIT(offset));
+}
+
+static struct gpio_chip moxart_template_chip = {
+ .label = "moxart-gpio",
+ .request = moxart_gpio_request,
+ .free = moxart_gpio_free,
+ .direction_input = moxart_gpio_direction_input,
+ .direction_output = moxart_gpio_direction_output,
+ .set = moxart_gpio_set,
+ .get = moxart_gpio_get,
+ .ngpio = 32,
+ .owner = THIS_MODULE,
+};
+
+static int moxart_gpio_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct resource *res;
+ struct moxart_gpio_chip *mgc;
+ int ret;
+
+ mgc = devm_kzalloc(dev, sizeof(*mgc), GFP_KERNEL);
+ if (!mgc) {
+ dev_err(dev, "can't allocate GPIO chip container\n");
+ return -ENOMEM;
+ }
+ mgc->gpio = moxart_template_chip;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ mgc->base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(mgc->base))
+ return PTR_ERR(mgc->base);
+
+ mgc->gpio.dev = dev;
+
+ ret = gpiochip_add(&mgc->gpio);
+ if (ret) {
+ dev_err(dev, "%s: gpiochip_add failed\n",
+ dev->of_node->full_name);
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct of_device_id moxart_gpio_match[] = {
+ { .compatible = "moxa,moxart-gpio" },
+ { }
+};
+
+static struct platform_driver moxart_gpio_driver = {
+ .driver = {
+ .name = "moxart-gpio",
+ .owner = THIS_MODULE,
+ .of_match_table = moxart_gpio_match,
+ },
+ .probe = moxart_gpio_probe,
+};
+module_platform_driver(moxart_gpio_driver);
+
+MODULE_DESCRIPTION("MOXART GPIO chip driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jonas Jensen <jonas.jensen@gmail.com>");
diff --git a/drivers/gpio/gpio-msic.c b/drivers/gpio/gpio-msic.c
index d75eaa3..8f70ded 100644
--- a/drivers/gpio/gpio-msic.c
+++ b/drivers/gpio/gpio-msic.c
@@ -292,7 +292,7 @@
mg->chip.to_irq = msic_gpio_to_irq;
mg->chip.base = pdata->gpio_base;
mg->chip.ngpio = MSIC_NUM_GPIO;
- mg->chip.can_sleep = 1;
+ mg->chip.can_sleep = true;
mg->chip.dev = dev;
mutex_init(&mg->buslock);
@@ -305,10 +305,9 @@
for (i = 0; i < mg->chip.ngpio; i++) {
irq_set_chip_data(i + mg->irq_base, mg);
- irq_set_chip_and_handler_name(i + mg->irq_base,
- &msic_irqchip,
- handle_simple_irq,
- "demux");
+ irq_set_chip_and_handler(i + mg->irq_base,
+ &msic_irqchip,
+ handle_simple_irq);
}
irq_set_chained_handler(mg->irq, msic_gpio_irq_handler);
irq_set_handler_data(mg->irq, mg);
diff --git a/drivers/gpio/gpio-msm-v2.c b/drivers/gpio/gpio-msm-v2.c
index 2baf0dd..a3351ac 100644
--- a/drivers/gpio/gpio-msm-v2.c
+++ b/drivers/gpio/gpio-msm-v2.c
@@ -430,10 +430,11 @@
return 0;
}
-static struct of_device_id msm_gpio_of_match[] = {
+static const struct of_device_id msm_gpio_of_match[] = {
{ .compatible = "qcom,msm-gpio", },
{ },
};
+MODULE_DEVICE_TABLE(of, msm_gpio_of_match);
static int msm_gpio_remove(struct platform_device *dev)
{
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index db31290..3b1fd1c 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -600,7 +600,7 @@
mvchip->chip.to_irq = mvebu_gpio_to_irq;
mvchip->chip.base = id * MVEBU_MAX_GPIO_PER_BANK;
mvchip->chip.ngpio = ngpios;
- mvchip->chip.can_sleep = 0;
+ mvchip->chip.can_sleep = false;
mvchip->chip.of_node = np;
mvchip->chip.dbg_show = mvebu_gpio_dbg_show;
@@ -676,7 +676,7 @@
mvchip->irqbase = irq_alloc_descs(-1, 0, ngpios, -1);
if (mvchip->irqbase < 0) {
dev_err(&pdev->dev, "no irqs\n");
- return -ENOMEM;
+ return mvchip->irqbase;
}
gc = irq_alloc_generic_chip("mvebu_gpio_irq", 2, mvchip->irqbase,
diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index 3307f6d..db83b3c 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -422,7 +422,7 @@
port->irq_high = platform_get_irq(pdev, 1);
port->irq = platform_get_irq(pdev, 0);
if (port->irq < 0)
- return -EINVAL;
+ return port->irq;
/* disable the interrupt and clear the status */
writel(0, port->base + GPIO_IMR);
diff --git a/drivers/gpio/gpio-octeon.c b/drivers/gpio/gpio-octeon.c
index 71a4a31..dbb0854 100644
--- a/drivers/gpio/gpio-octeon.c
+++ b/drivers/gpio/gpio-octeon.c
@@ -111,7 +111,7 @@
chip->dev = &pdev->dev;
chip->owner = THIS_MODULE;
chip->base = 0;
- chip->can_sleep = 0;
+ chip->can_sleep = false;
chip->ngpio = 20;
chip->direction_input = octeon_gpio_dir_in;
chip->get = octeon_gpio_get;
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index f319c9f..4243190 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -108,12 +108,12 @@
u32 l;
reg += bank->regs->direction;
- l = __raw_readl(reg);
+ l = readl_relaxed(reg);
if (is_input)
l |= 1 << gpio;
else
l &= ~(1 << gpio);
- __raw_writel(l, reg);
+ writel_relaxed(l, reg);
bank->context.oe = l;
}
@@ -132,7 +132,7 @@
bank->context.dataout &= ~l;
}
- __raw_writel(l, reg);
+ writel_relaxed(l, reg);
}
/* set data out value using mask register */
@@ -142,12 +142,12 @@
u32 gpio_bit = GPIO_BIT(bank, gpio);
u32 l;
- l = __raw_readl(reg);
+ l = readl_relaxed(reg);
if (enable)
l |= gpio_bit;
else
l &= ~gpio_bit;
- __raw_writel(l, reg);
+ writel_relaxed(l, reg);
bank->context.dataout = l;
}
@@ -155,26 +155,26 @@
{
void __iomem *reg = bank->base + bank->regs->datain;
- return (__raw_readl(reg) & (1 << offset)) != 0;
+ return (readl_relaxed(reg) & (1 << offset)) != 0;
}
static int _get_gpio_dataout(struct gpio_bank *bank, int offset)
{
void __iomem *reg = bank->base + bank->regs->dataout;
- return (__raw_readl(reg) & (1 << offset)) != 0;
+ return (readl_relaxed(reg) & (1 << offset)) != 0;
}
static inline void _gpio_rmw(void __iomem *base, u32 reg, u32 mask, bool set)
{
- int l = __raw_readl(base + reg);
+ int l = readl_relaxed(base + reg);
if (set)
l |= mask;
else
l &= ~mask;
- __raw_writel(l, base + reg);
+ writel_relaxed(l, base + reg);
}
static inline void _gpio_dbck_enable(struct gpio_bank *bank)
@@ -183,7 +183,7 @@
clk_enable(bank->dbck);
bank->dbck_enabled = true;
- __raw_writel(bank->dbck_enable_mask,
+ writel_relaxed(bank->dbck_enable_mask,
bank->base + bank->regs->debounce_en);
}
}
@@ -196,7 +196,7 @@
* enabled but the clock is not, GPIO module seems to be unable
* to detect events and generate interrupts at least on OMAP3.
*/
- __raw_writel(0, bank->base + bank->regs->debounce_en);
+ writel_relaxed(0, bank->base + bank->regs->debounce_en);
clk_disable(bank->dbck);
bank->dbck_enabled = false;
@@ -233,10 +233,10 @@
clk_enable(bank->dbck);
reg = bank->base + bank->regs->debounce;
- __raw_writel(debounce, reg);
+ writel_relaxed(debounce, reg);
reg = bank->base + bank->regs->debounce_en;
- val = __raw_readl(reg);
+ val = readl_relaxed(reg);
if (debounce)
val |= l;
@@ -244,7 +244,7 @@
val &= ~l;
bank->dbck_enable_mask = val;
- __raw_writel(val, reg);
+ writel_relaxed(val, reg);
clk_disable(bank->dbck);
/*
* Enable debounce clock per module.
@@ -283,12 +283,12 @@
bank->dbck_enable_mask &= ~gpio_bit;
bank->context.debounce_en &= ~gpio_bit;
- __raw_writel(bank->context.debounce_en,
+ writel_relaxed(bank->context.debounce_en,
bank->base + bank->regs->debounce_en);
if (!bank->dbck_enable_mask) {
bank->context.debounce = 0;
- __raw_writel(bank->context.debounce, bank->base +
+ writel_relaxed(bank->context.debounce, bank->base +
bank->regs->debounce);
clk_disable(bank->dbck);
bank->dbck_enabled = false;
@@ -311,18 +311,18 @@
trigger & IRQ_TYPE_EDGE_FALLING);
bank->context.leveldetect0 =
- __raw_readl(bank->base + bank->regs->leveldetect0);
+ readl_relaxed(bank->base + bank->regs->leveldetect0);
bank->context.leveldetect1 =
- __raw_readl(bank->base + bank->regs->leveldetect1);
+ readl_relaxed(bank->base + bank->regs->leveldetect1);
bank->context.risingdetect =
- __raw_readl(bank->base + bank->regs->risingdetect);
+ readl_relaxed(bank->base + bank->regs->risingdetect);
bank->context.fallingdetect =
- __raw_readl(bank->base + bank->regs->fallingdetect);
+ readl_relaxed(bank->base + bank->regs->fallingdetect);
if (likely(!(bank->non_wakeup_gpios & gpio_bit))) {
_gpio_rmw(base, bank->regs->wkup_en, gpio_bit, trigger != 0);
bank->context.wake_en =
- __raw_readl(bank->base + bank->regs->wkup_en);
+ readl_relaxed(bank->base + bank->regs->wkup_en);
}
/* This part needs to be executed always for OMAP{34xx, 44xx} */
@@ -347,8 +347,8 @@
exit:
bank->level_mask =
- __raw_readl(bank->base + bank->regs->leveldetect0) |
- __raw_readl(bank->base + bank->regs->leveldetect1);
+ readl_relaxed(bank->base + bank->regs->leveldetect0) |
+ readl_relaxed(bank->base + bank->regs->leveldetect1);
}
#ifdef CONFIG_ARCH_OMAP1
@@ -366,13 +366,13 @@
reg += bank->regs->irqctrl;
- l = __raw_readl(reg);
+ l = readl_relaxed(reg);
if ((l >> gpio) & 1)
l &= ~(1 << gpio);
else
l |= 1 << gpio;
- __raw_writel(l, reg);
+ writel_relaxed(l, reg);
}
#else
static void _toggle_gpio_edge_triggering(struct gpio_bank *bank, int gpio) {}
@@ -390,7 +390,7 @@
} else if (bank->regs->irqctrl) {
reg += bank->regs->irqctrl;
- l = __raw_readl(reg);
+ l = readl_relaxed(reg);
if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
bank->toggle_mask |= 1 << gpio;
if (trigger & IRQ_TYPE_EDGE_RISING)
@@ -400,7 +400,7 @@
else
return -EINVAL;
- __raw_writel(l, reg);
+ writel_relaxed(l, reg);
} else if (bank->regs->edgectrl1) {
if (gpio & 0x08)
reg += bank->regs->edgectrl2;
@@ -408,7 +408,7 @@
reg += bank->regs->edgectrl1;
gpio &= 0x07;
- l = __raw_readl(reg);
+ l = readl_relaxed(reg);
l &= ~(3 << (gpio << 1));
if (trigger & IRQ_TYPE_EDGE_RISING)
l |= 2 << (gpio << 1);
@@ -418,8 +418,8 @@
/* Enable wake-up during idle for dynamic tick */
_gpio_rmw(base, bank->regs->wkup_en, 1 << gpio, trigger);
bank->context.wake_en =
- __raw_readl(bank->base + bank->regs->wkup_en);
- __raw_writel(l, reg);
+ readl_relaxed(bank->base + bank->regs->wkup_en);
+ writel_relaxed(l, reg);
}
return 0;
}
@@ -430,17 +430,17 @@
void __iomem *reg = bank->base + bank->regs->pinctrl;
/* Claim the pin for MPU */
- __raw_writel(__raw_readl(reg) | (1 << offset), reg);
+ writel_relaxed(readl_relaxed(reg) | (1 << offset), reg);
}
if (bank->regs->ctrl && !BANK_USED(bank)) {
void __iomem *reg = bank->base + bank->regs->ctrl;
u32 ctrl;
- ctrl = __raw_readl(reg);
+ ctrl = readl_relaxed(reg);
/* Module is enabled, clocks are not gated */
ctrl &= ~GPIO_MOD_CTRL_BIT;
- __raw_writel(ctrl, reg);
+ writel_relaxed(ctrl, reg);
bank->context.ctrl = ctrl;
}
}
@@ -455,17 +455,17 @@
/* Disable wake-up during idle for dynamic tick */
_gpio_rmw(base, bank->regs->wkup_en, 1 << offset, 0);
bank->context.wake_en =
- __raw_readl(bank->base + bank->regs->wkup_en);
+ readl_relaxed(bank->base + bank->regs->wkup_en);
}
if (bank->regs->ctrl && !BANK_USED(bank)) {
void __iomem *reg = bank->base + bank->regs->ctrl;
u32 ctrl;
- ctrl = __raw_readl(reg);
+ ctrl = readl_relaxed(reg);
/* Module is disabled, clocks are gated */
ctrl |= GPIO_MOD_CTRL_BIT;
- __raw_writel(ctrl, reg);
+ writel_relaxed(ctrl, reg);
bank->context.ctrl = ctrl;
}
}
@@ -474,7 +474,7 @@
{
void __iomem *reg = bank->base + bank->regs->direction;
- return __raw_readl(reg) & mask;
+ return readl_relaxed(reg) & mask;
}
static int gpio_irq_type(struct irq_data *d, unsigned type)
@@ -538,16 +538,16 @@
void __iomem *reg = bank->base;
reg += bank->regs->irqstatus;
- __raw_writel(gpio_mask, reg);
+ writel_relaxed(gpio_mask, reg);
/* Workaround for clearing DSP GPIO interrupts to allow retention */
if (bank->regs->irqstatus2) {
reg = bank->base + bank->regs->irqstatus2;
- __raw_writel(gpio_mask, reg);
+ writel_relaxed(gpio_mask, reg);
}
/* Flush posted write for the irq status to avoid spurious interrupts */
- __raw_readl(reg);
+ readl_relaxed(reg);
}
static inline void _clear_gpio_irqstatus(struct gpio_bank *bank, int gpio)
@@ -562,7 +562,7 @@
u32 mask = (1 << bank->width) - 1;
reg += bank->regs->irqenable;
- l = __raw_readl(reg);
+ l = readl_relaxed(reg);
if (bank->regs->irqenable_inv)
l = ~l;
l &= mask;
@@ -580,7 +580,7 @@
bank->context.irqenable1 |= gpio_mask;
} else {
reg += bank->regs->irqenable;
- l = __raw_readl(reg);
+ l = readl_relaxed(reg);
if (bank->regs->irqenable_inv)
l &= ~gpio_mask;
else
@@ -588,7 +588,7 @@
bank->context.irqenable1 = l;
}
- __raw_writel(l, reg);
+ writel_relaxed(l, reg);
}
static void _disable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask)
@@ -602,7 +602,7 @@
bank->context.irqenable1 &= ~gpio_mask;
} else {
reg += bank->regs->irqenable;
- l = __raw_readl(reg);
+ l = readl_relaxed(reg);
if (bank->regs->irqenable_inv)
l |= gpio_mask;
else
@@ -610,7 +610,7 @@
bank->context.irqenable1 = l;
}
- __raw_writel(l, reg);
+ writel_relaxed(l, reg);
}
static inline void _set_gpio_irqenable(struct gpio_bank *bank, int gpio, int enable)
@@ -646,7 +646,7 @@
else
bank->context.wake_en &= ~gpio_bit;
- __raw_writel(bank->context.wake_en, bank->base + bank->regs->wkup_en);
+ writel_relaxed(bank->context.wake_en, bank->base + bank->regs->wkup_en);
spin_unlock_irqrestore(&bank->lock, flags);
return 0;
@@ -748,7 +748,7 @@
u32 enabled;
enabled = _get_gpio_irqbank_mask(bank);
- isr_saved = isr = __raw_readl(isr_reg) & enabled;
+ isr_saved = isr = readl_relaxed(isr_reg) & enabled;
if (bank->level_mask)
level_mask = bank->level_mask & enabled;
@@ -883,7 +883,7 @@
unsigned long flags;
spin_lock_irqsave(&bank->lock, flags);
- __raw_writel(0xffff & ~bank->context.wake_en, mask_reg);
+ writel_relaxed(0xffff & ~bank->context.wake_en, mask_reg);
spin_unlock_irqrestore(&bank->lock, flags);
return 0;
@@ -898,7 +898,7 @@
unsigned long flags;
spin_lock_irqsave(&bank->lock, flags);
- __raw_writel(bank->context.wake_en, mask_reg);
+ writel_relaxed(bank->context.wake_en, mask_reg);
spin_unlock_irqrestore(&bank->lock, flags);
return 0;
@@ -1011,7 +1011,7 @@
if (called || bank->regs->revision == USHRT_MAX)
return;
- rev = __raw_readw(bank->base + bank->regs->revision);
+ rev = readw_relaxed(bank->base + bank->regs->revision);
pr_info("OMAP GPIO hardware version %d.%d\n",
(rev >> 4) & 0x0f, rev & 0x0f);
@@ -1032,20 +1032,20 @@
l = 0xffff;
if (bank->is_mpuio) {
- __raw_writel(l, bank->base + bank->regs->irqenable);
+ writel_relaxed(l, bank->base + bank->regs->irqenable);
return;
}
_gpio_rmw(base, bank->regs->irqenable, l, bank->regs->irqenable_inv);
_gpio_rmw(base, bank->regs->irqstatus, l, !bank->regs->irqenable_inv);
if (bank->regs->debounce_en)
- __raw_writel(0, base + bank->regs->debounce_en);
+ writel_relaxed(0, base + bank->regs->debounce_en);
/* Save OE default value (0xffffffff) in the context */
- bank->context.oe = __raw_readl(bank->base + bank->regs->direction);
+ bank->context.oe = readl_relaxed(bank->base + bank->regs->direction);
/* Initialize interface clk ungated, module enabled */
if (bank->regs->ctrl)
- __raw_writel(0, base + bank->regs->ctrl);
+ writel_relaxed(0, base + bank->regs->ctrl);
bank->dbck = clk_get(bank->dev, "dbclk");
if (IS_ERR(bank->dbck))
@@ -1282,11 +1282,11 @@
*/
wake_low = bank->context.leveldetect0 & bank->context.wake_en;
if (wake_low)
- __raw_writel(wake_low | bank->context.fallingdetect,
+ writel_relaxed(wake_low | bank->context.fallingdetect,
bank->base + bank->regs->fallingdetect);
wake_hi = bank->context.leveldetect1 & bank->context.wake_en;
if (wake_hi)
- __raw_writel(wake_hi | bank->context.risingdetect,
+ writel_relaxed(wake_hi | bank->context.risingdetect,
bank->base + bank->regs->risingdetect);
if (!bank->enabled_non_wakeup_gpios)
@@ -1301,7 +1301,7 @@
* non-wakeup GPIOs. Otherwise spurious IRQs will be
* generated. See OMAP2420 Errata item 1.101.
*/
- bank->saved_datain = __raw_readl(bank->base +
+ bank->saved_datain = readl_relaxed(bank->base +
bank->regs->datain);
l1 = bank->context.fallingdetect;
l2 = bank->context.risingdetect;
@@ -1309,8 +1309,8 @@
l1 &= ~bank->enabled_non_wakeup_gpios;
l2 &= ~bank->enabled_non_wakeup_gpios;
- __raw_writel(l1, bank->base + bank->regs->fallingdetect);
- __raw_writel(l2, bank->base + bank->regs->risingdetect);
+ writel_relaxed(l1, bank->base + bank->regs->fallingdetect);
+ writel_relaxed(l2, bank->base + bank->regs->risingdetect);
bank->workaround_enabled = true;
@@ -1358,9 +1358,9 @@
* generate a PRCM wakeup. Here we restore the
* pre-runtime_suspend() values for edge triggering.
*/
- __raw_writel(bank->context.fallingdetect,
+ writel_relaxed(bank->context.fallingdetect,
bank->base + bank->regs->fallingdetect);
- __raw_writel(bank->context.risingdetect,
+ writel_relaxed(bank->context.risingdetect,
bank->base + bank->regs->risingdetect);
if (bank->loses_context) {
@@ -1382,7 +1382,7 @@
return 0;
}
- l = __raw_readl(bank->base + bank->regs->datain);
+ l = readl_relaxed(bank->base + bank->regs->datain);
/*
* Check if any of the non-wakeup interrupt GPIOs have changed
@@ -1412,24 +1412,24 @@
if (gen) {
u32 old0, old1;
- old0 = __raw_readl(bank->base + bank->regs->leveldetect0);
- old1 = __raw_readl(bank->base + bank->regs->leveldetect1);
+ old0 = readl_relaxed(bank->base + bank->regs->leveldetect0);
+ old1 = readl_relaxed(bank->base + bank->regs->leveldetect1);
if (!bank->regs->irqstatus_raw0) {
- __raw_writel(old0 | gen, bank->base +
+ writel_relaxed(old0 | gen, bank->base +
bank->regs->leveldetect0);
- __raw_writel(old1 | gen, bank->base +
+ writel_relaxed(old1 | gen, bank->base +
bank->regs->leveldetect1);
}
if (bank->regs->irqstatus_raw0) {
- __raw_writel(old0 | l, bank->base +
+ writel_relaxed(old0 | l, bank->base +
bank->regs->leveldetect0);
- __raw_writel(old1 | l, bank->base +
+ writel_relaxed(old1 | l, bank->base +
bank->regs->leveldetect1);
}
- __raw_writel(old0, bank->base + bank->regs->leveldetect0);
- __raw_writel(old1, bank->base + bank->regs->leveldetect1);
+ writel_relaxed(old0, bank->base + bank->regs->leveldetect0);
+ writel_relaxed(old1, bank->base + bank->regs->leveldetect1);
}
bank->workaround_enabled = false;
@@ -1471,55 +1471,55 @@
struct omap_gpio_reg_offs *regs = p->regs;
void __iomem *base = p->base;
- p->context.ctrl = __raw_readl(base + regs->ctrl);
- p->context.oe = __raw_readl(base + regs->direction);
- p->context.wake_en = __raw_readl(base + regs->wkup_en);
- p->context.leveldetect0 = __raw_readl(base + regs->leveldetect0);
- p->context.leveldetect1 = __raw_readl(base + regs->leveldetect1);
- p->context.risingdetect = __raw_readl(base + regs->risingdetect);
- p->context.fallingdetect = __raw_readl(base + regs->fallingdetect);
- p->context.irqenable1 = __raw_readl(base + regs->irqenable);
- p->context.irqenable2 = __raw_readl(base + regs->irqenable2);
+ p->context.ctrl = readl_relaxed(base + regs->ctrl);
+ p->context.oe = readl_relaxed(base + regs->direction);
+ p->context.wake_en = readl_relaxed(base + regs->wkup_en);
+ p->context.leveldetect0 = readl_relaxed(base + regs->leveldetect0);
+ p->context.leveldetect1 = readl_relaxed(base + regs->leveldetect1);
+ p->context.risingdetect = readl_relaxed(base + regs->risingdetect);
+ p->context.fallingdetect = readl_relaxed(base + regs->fallingdetect);
+ p->context.irqenable1 = readl_relaxed(base + regs->irqenable);
+ p->context.irqenable2 = readl_relaxed(base + regs->irqenable2);
if (regs->set_dataout && p->regs->clr_dataout)
- p->context.dataout = __raw_readl(base + regs->set_dataout);
+ p->context.dataout = readl_relaxed(base + regs->set_dataout);
else
- p->context.dataout = __raw_readl(base + regs->dataout);
+ p->context.dataout = readl_relaxed(base + regs->dataout);
p->context_valid = true;
}
static void omap_gpio_restore_context(struct gpio_bank *bank)
{
- __raw_writel(bank->context.wake_en,
+ writel_relaxed(bank->context.wake_en,
bank->base + bank->regs->wkup_en);
- __raw_writel(bank->context.ctrl, bank->base + bank->regs->ctrl);
- __raw_writel(bank->context.leveldetect0,
+ writel_relaxed(bank->context.ctrl, bank->base + bank->regs->ctrl);
+ writel_relaxed(bank->context.leveldetect0,
bank->base + bank->regs->leveldetect0);
- __raw_writel(bank->context.leveldetect1,
+ writel_relaxed(bank->context.leveldetect1,
bank->base + bank->regs->leveldetect1);
- __raw_writel(bank->context.risingdetect,
+ writel_relaxed(bank->context.risingdetect,
bank->base + bank->regs->risingdetect);
- __raw_writel(bank->context.fallingdetect,
+ writel_relaxed(bank->context.fallingdetect,
bank->base + bank->regs->fallingdetect);
if (bank->regs->set_dataout && bank->regs->clr_dataout)
- __raw_writel(bank->context.dataout,
+ writel_relaxed(bank->context.dataout,
bank->base + bank->regs->set_dataout);
else
- __raw_writel(bank->context.dataout,
+ writel_relaxed(bank->context.dataout,
bank->base + bank->regs->dataout);
- __raw_writel(bank->context.oe, bank->base + bank->regs->direction);
+ writel_relaxed(bank->context.oe, bank->base + bank->regs->direction);
if (bank->dbck_enable_mask) {
- __raw_writel(bank->context.debounce, bank->base +
+ writel_relaxed(bank->context.debounce, bank->base +
bank->regs->debounce);
- __raw_writel(bank->context.debounce_en,
+ writel_relaxed(bank->context.debounce_en,
bank->base + bank->regs->debounce_en);
}
- __raw_writel(bank->context.irqenable1,
+ writel_relaxed(bank->context.irqenable1,
bank->base + bank->regs->irqenable);
- __raw_writel(bank->context.irqenable2,
+ writel_relaxed(bank->context.irqenable2,
bank->base + bank->regs->irqenable2);
}
#endif /* CONFIG_PM_RUNTIME */
diff --git a/drivers/gpio/gpio-palmas.c b/drivers/gpio/gpio-palmas.c
index 11801e98..da9d332 100644
--- a/drivers/gpio/gpio-palmas.c
+++ b/drivers/gpio/gpio-palmas.c
@@ -182,7 +182,7 @@
palmas_gpio->gpio_chip.owner = THIS_MODULE;
palmas_gpio->gpio_chip.label = dev_name(&pdev->dev);
palmas_gpio->gpio_chip.ngpio = dev_data->ngpio;
- palmas_gpio->gpio_chip.can_sleep = 1;
+ palmas_gpio->gpio_chip.can_sleep = true;
palmas_gpio->gpio_chip.direction_input = palmas_gpio_input;
palmas_gpio->gpio_chip.direction_output = palmas_gpio_output;
palmas_gpio->gpio_chip.to_irq = palmas_gpio_to_irq;
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 6e48c07..019b23b 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -354,7 +354,7 @@
gc->direction_output = pca953x_gpio_direction_output;
gc->get = pca953x_gpio_get_value;
gc->set = pca953x_gpio_set_value;
- gc->can_sleep = 1;
+ gc->can_sleep = true;
gc->base = chip->gpio_start;
gc->ngpio = gpios;
diff --git a/drivers/gpio/gpio-pcf857x.c b/drivers/gpio/gpio-pcf857x.c
index 1535686..8273582 100644
--- a/drivers/gpio/gpio-pcf857x.c
+++ b/drivers/gpio/gpio-pcf857x.c
@@ -305,7 +305,7 @@
spin_lock_init(&gpio->slock);
gpio->chip.base = pdata ? pdata->gpio_base : -1;
- gpio->chip.can_sleep = 1;
+ gpio->chip.can_sleep = true;
gpio->chip.dev = &client->dev;
gpio->chip.owner = THIS_MODULE;
gpio->chip.get = pcf857x_get;
diff --git a/drivers/gpio/gpio-pch.c b/drivers/gpio/gpio-pch.c
index 0fec097..9656c19 100644
--- a/drivers/gpio/gpio-pch.c
+++ b/drivers/gpio/gpio-pch.c
@@ -224,7 +224,7 @@
gpio->dbg_show = NULL;
gpio->base = -1;
gpio->ngpio = gpio_pins[chip->ioh];
- gpio->can_sleep = 0;
+ gpio->can_sleep = false;
gpio->to_irq = pch_gpio_to_irq;
}
@@ -518,7 +518,7 @@
#endif
#define PCI_VENDOR_ID_ROHM 0x10DB
-static DEFINE_PCI_DEVICE_TABLE(pch_gpio_pcidev_id) = {
+static const struct pci_device_id pch_gpio_pcidev_id[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x8803) },
{ PCI_DEVICE(PCI_VENDOR_ID_ROHM, 0x8014) },
{ PCI_DEVICE(PCI_VENDOR_ID_ROHM, 0x8043) },
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index cc13d1b..42e6e64 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -263,7 +263,8 @@
static int pxa_gpio_get(struct gpio_chip *chip, unsigned offset)
{
- return readl_relaxed(gpio_chip_base(chip) + GPLR_OFFSET) & (1 << offset);
+ u32 gplr = readl_relaxed(gpio_chip_base(chip) + GPLR_OFFSET);
+ return !!(gplr & (1 << offset));
}
static void pxa_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
diff --git a/drivers/gpio/gpio-rc5t583.c b/drivers/gpio/gpio-rc5t583.c
index e63d6a3..122b776 100644
--- a/drivers/gpio/gpio-rc5t583.c
+++ b/drivers/gpio/gpio-rc5t583.c
@@ -133,7 +133,7 @@
rc5t583_gpio->gpio_chip.get = rc5t583_gpio_get,
rc5t583_gpio->gpio_chip.to_irq = rc5t583_gpio_to_irq,
rc5t583_gpio->gpio_chip.ngpio = RC5T583_MAX_GPIO,
- rc5t583_gpio->gpio_chip.can_sleep = 1,
+ rc5t583_gpio->gpio_chip.can_sleep = true,
rc5t583_gpio->gpio_chip.dev = &pdev->dev;
rc5t583_gpio->gpio_chip.base = -1;
rc5t583_gpio->rc5t583 = rc5t583;
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index 8b7e719..ca76ce7 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -285,7 +285,34 @@
.map = gpio_rcar_irq_domain_map,
};
-static void gpio_rcar_parse_pdata(struct gpio_rcar_priv *p)
+struct gpio_rcar_info {
+ bool has_both_edge_trigger;
+};
+
+static const struct of_device_id gpio_rcar_of_table[] = {
+ {
+ .compatible = "renesas,gpio-r8a7790",
+ .data = (void *)&(const struct gpio_rcar_info) {
+ .has_both_edge_trigger = true,
+ },
+ }, {
+ .compatible = "renesas,gpio-r8a7791",
+ .data = (void *)&(const struct gpio_rcar_info) {
+ .has_both_edge_trigger = true,
+ },
+ }, {
+ .compatible = "renesas,gpio-rcar",
+ .data = (void *)&(const struct gpio_rcar_info) {
+ .has_both_edge_trigger = false,
+ },
+ }, {
+ /* Terminator */
+ },
+};
+
+MODULE_DEVICE_TABLE(of, gpio_rcar_of_table);
+
+static int gpio_rcar_parse_pdata(struct gpio_rcar_priv *p)
{
struct gpio_rcar_config *pdata = dev_get_platdata(&p->pdev->dev);
struct device_node *np = p->pdev->dev.of_node;
@@ -295,11 +322,21 @@
if (pdata) {
p->config = *pdata;
} else if (IS_ENABLED(CONFIG_OF) && np) {
+ const struct of_device_id *match;
+ const struct gpio_rcar_info *info;
+
+ match = of_match_node(gpio_rcar_of_table, np);
+ if (!match)
+ return -EINVAL;
+
+ info = match->data;
+
ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0,
&args);
p->config.number_of_pins = ret == 0 ? args.args[2]
: RCAR_MAX_GPIO_PER_BANK;
p->config.gpio_base = -1;
+ p->config.has_both_edge_trigger = info->has_both_edge_trigger;
}
if (p->config.number_of_pins == 0 ||
@@ -309,6 +346,8 @@
p->config.number_of_pins, RCAR_MAX_GPIO_PER_BANK);
p->config.number_of_pins = RCAR_MAX_GPIO_PER_BANK;
}
+
+ return 0;
}
static int gpio_rcar_probe(struct platform_device *pdev)
@@ -331,7 +370,9 @@
spin_lock_init(&p->lock);
/* Get device configuration from DT node or platform data. */
- gpio_rcar_parse_pdata(p);
+ ret = gpio_rcar_parse_pdata(p);
+ if (ret < 0)
+ return ret;
platform_set_drvdata(pdev, p);
@@ -370,10 +411,9 @@
irq_chip->name = name;
irq_chip->irq_mask = gpio_rcar_irq_disable;
irq_chip->irq_unmask = gpio_rcar_irq_enable;
- irq_chip->irq_enable = gpio_rcar_irq_enable;
- irq_chip->irq_disable = gpio_rcar_irq_disable;
irq_chip->irq_set_type = gpio_rcar_irq_set_type;
- irq_chip->flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_SET_TYPE_MASKED;
+ irq_chip->flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_SET_TYPE_MASKED
+ | IRQCHIP_MASK_ON_SUSPEND;
p->irq_domain = irq_domain_add_simple(pdev->dev.of_node,
p->config.number_of_pins,
@@ -436,17 +476,6 @@
return 0;
}
-#ifdef CONFIG_OF
-static const struct of_device_id gpio_rcar_of_table[] = {
- {
- .compatible = "renesas,gpio-rcar",
- },
- { },
-};
-
-MODULE_DEVICE_TABLE(of, gpio_rcar_of_table);
-#endif
-
static struct platform_driver gpio_rcar_device_driver = {
.probe = gpio_rcar_probe,
.remove = gpio_rcar_remove,
diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index 76e02b9..a85e00b 100644
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -30,10 +30,13 @@
#include <asm/irq.h>
-#include <mach/hardware.h>
#include <mach/map.h>
#include <mach/regs-gpio.h>
+#if defined(CONFIG_ARCH_S3C24XX) || defined(CONFIG_ARCH_S3C64XX)
+#include <mach/gpio-samsung.h>
+#endif
+
#include <plat/cpu.h>
#include <plat/gpio-core.h>
#include <plat/gpio-cfg.h>
@@ -1053,7 +1056,7 @@
.base = S3C2410_GPA(0),
.owner = THIS_MODULE,
.label = "GPIOA",
- .ngpio = 24,
+ .ngpio = 27,
.direction_input = s3c24xx_gpiolib_banka_input,
.direction_output = s3c24xx_gpiolib_banka_output,
},
@@ -1062,7 +1065,7 @@
.base = S3C2410_GPB(0),
.owner = THIS_MODULE,
.label = "GPIOB",
- .ngpio = 16,
+ .ngpio = 11,
},
}, {
.chip = {
@@ -1107,7 +1110,7 @@
.base = S3C2410_GPH(0),
.owner = THIS_MODULE,
.label = "GPIOH",
- .ngpio = 11,
+ .ngpio = 15,
},
},
/* GPIOS for the S3C2443 and later devices. */
diff --git a/drivers/gpio/gpio-sch311x.c b/drivers/gpio/gpio-sch311x.c
new file mode 100644
index 0000000..0357387
--- /dev/null
+++ b/drivers/gpio/gpio-sch311x.c
@@ -0,0 +1,432 @@
+/*
+ * GPIO driver for the SMSC SCH311x Super-I/O chips
+ *
+ * Copyright (C) 2013 Bruno Randolf <br1@einfach.org>
+ *
+ * SuperIO functions and chip detection:
+ * (c) Copyright 2008 Wim Van Sebroeck <wim@iguana.be>.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+
+#define DRV_NAME "gpio-sch311x"
+
+#define SCH311X_GPIO_CONF_OUT 0x00
+#define SCH311X_GPIO_CONF_IN 0x01
+#define SCH311X_GPIO_CONF_INVERT 0x02
+#define SCH311X_GPIO_CONF_OPEN_DRAIN 0x80
+
+#define SIO_CONFIG_KEY_ENTER 0x55
+#define SIO_CONFIG_KEY_EXIT 0xaa
+
+#define GP1 0x4b
+
+static int sch311x_ioports[] = { 0x2e, 0x4e, 0x162e, 0x164e };
+
+static struct platform_device *sch311x_gpio_pdev;
+
+struct sch311x_pdev_data { /* platform device data */
+ unsigned short runtime_reg; /* runtime register base address */
+};
+
+struct sch311x_gpio_block { /* one GPIO block runtime data */
+ struct gpio_chip chip;
+ unsigned short data_reg; /* from definition below */
+ unsigned short *config_regs; /* pointer to definition below */
+ unsigned short runtime_reg; /* runtime register */
+ spinlock_t lock; /* lock for this GPIO block */
+};
+
+struct sch311x_gpio_priv { /* driver private data */
+ struct sch311x_gpio_block blocks[6];
+};
+
+struct sch311x_gpio_block_def { /* register address definitions */
+ unsigned short data_reg;
+ unsigned short config_regs[8];
+ unsigned short base;
+};
+
+/* Note: some GPIOs are not available, these are marked with 0x00 */
+
+static struct sch311x_gpio_block_def sch311x_gpio_blocks[] = {
+ {
+ .data_reg = 0x4b, /* GP1 */
+ .config_regs = {0x23, 0x24, 0x25, 0x26, 0x27, 0x29, 0x2a, 0x2b},
+ .base = 10,
+ },
+ {
+ .data_reg = 0x4c, /* GP2 */
+ .config_regs = {0x00, 0x2c, 0x2d, 0x00, 0x00, 0x00, 0x00, 0x32},
+ .base = 20,
+ },
+ {
+ .data_reg = 0x4d, /* GP3 */
+ .config_regs = {0x33, 0x34, 0x35, 0x36, 0x37, 0x00, 0x39, 0x3a},
+ .base = 30,
+ },
+ {
+ .data_reg = 0x4e, /* GP4 */
+ .config_regs = {0x3b, 0x00, 0x3d, 0x00, 0x6e, 0x6f, 0x72, 0x73},
+ .base = 40,
+ },
+ {
+ .data_reg = 0x4f, /* GP5 */
+ .config_regs = {0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46},
+ .base = 50,
+ },
+ {
+ .data_reg = 0x50, /* GP6 */
+ .config_regs = {0x47, 0x48, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59},
+ .base = 60,
+ },
+};
+
+static inline struct sch311x_gpio_block *
+to_sch311x_gpio_block(struct gpio_chip *chip)
+{
+ return container_of(chip, struct sch311x_gpio_block, chip);
+}
+
+
+/*
+ * Super-IO functions
+ */
+
+static inline int sch311x_sio_enter(int sio_config_port)
+{
+ /* Don't step on other drivers' I/O space by accident. */
+ if (!request_muxed_region(sio_config_port, 2, DRV_NAME)) {
+ pr_err(DRV_NAME "I/O address 0x%04x already in use\n",
+ sio_config_port);
+ return -EBUSY;
+ }
+
+ outb(SIO_CONFIG_KEY_ENTER, sio_config_port);
+ return 0;
+}
+
+static inline void sch311x_sio_exit(int sio_config_port)
+{
+ outb(SIO_CONFIG_KEY_EXIT, sio_config_port);
+ release_region(sio_config_port, 2);
+}
+
+static inline int sch311x_sio_inb(int sio_config_port, int reg)
+{
+ outb(reg, sio_config_port);
+ return inb(sio_config_port + 1);
+}
+
+static inline void sch311x_sio_outb(int sio_config_port, int reg, int val)
+{
+ outb(reg, sio_config_port);
+ outb(val, sio_config_port + 1);
+}
+
+
+/*
+ * GPIO functions
+ */
+
+static int sch311x_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+ struct sch311x_gpio_block *block = to_sch311x_gpio_block(chip);
+
+ if (block->config_regs[offset] == 0) /* GPIO is not available */
+ return -ENODEV;
+
+ if (!request_region(block->runtime_reg + block->config_regs[offset],
+ 1, DRV_NAME)) {
+ dev_err(chip->dev, "Failed to request region 0x%04x.\n",
+ block->runtime_reg + block->config_regs[offset]);
+ return -EBUSY;
+ }
+ return 0;
+}
+
+static void sch311x_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+ struct sch311x_gpio_block *block = to_sch311x_gpio_block(chip);
+
+ if (block->config_regs[offset] == 0) /* GPIO is not available */
+ return;
+
+ release_region(block->runtime_reg + block->config_regs[offset], 1);
+}
+
+static int sch311x_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+ struct sch311x_gpio_block *block = to_sch311x_gpio_block(chip);
+ unsigned char data;
+
+ spin_lock(&block->lock);
+ data = inb(block->runtime_reg + block->data_reg);
+ spin_unlock(&block->lock);
+
+ return !!(data & BIT(offset));
+}
+
+static void __sch311x_gpio_set(struct sch311x_gpio_block *block,
+ unsigned offset, int value)
+{
+ unsigned char data = inb(block->runtime_reg + block->data_reg);
+ if (value)
+ data |= BIT(offset);
+ else
+ data &= ~BIT(offset);
+ outb(data, block->runtime_reg + block->data_reg);
+}
+
+static void sch311x_gpio_set(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ struct sch311x_gpio_block *block = to_sch311x_gpio_block(chip);
+
+ spin_lock(&block->lock);
+ __sch311x_gpio_set(block, offset, value);
+ spin_unlock(&block->lock);
+}
+
+static int sch311x_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
+{
+ struct sch311x_gpio_block *block = to_sch311x_gpio_block(chip);
+
+ spin_lock(&block->lock);
+ outb(SCH311X_GPIO_CONF_IN, block->runtime_reg +
+ block->config_regs[offset]);
+ spin_unlock(&block->lock);
+
+ return 0;
+}
+
+static int sch311x_gpio_direction_out(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ struct sch311x_gpio_block *block = to_sch311x_gpio_block(chip);
+
+ spin_lock(&block->lock);
+
+ outb(SCH311X_GPIO_CONF_OUT, block->runtime_reg +
+ block->config_regs[offset]);
+
+ __sch311x_gpio_set(block, offset, value);
+
+ spin_unlock(&block->lock);
+ return 0;
+}
+
+static int sch311x_gpio_probe(struct platform_device *pdev)
+{
+ struct sch311x_pdev_data *pdata = pdev->dev.platform_data;
+ struct sch311x_gpio_priv *priv;
+ struct sch311x_gpio_block *block;
+ int err, i;
+
+ /* we can register all GPIO data registers at once */
+ if (!request_region(pdata->runtime_reg + GP1, 6, DRV_NAME)) {
+ dev_err(&pdev->dev, "Failed to request region 0x%04x-0x%04x.\n",
+ pdata->runtime_reg + GP1, pdata->runtime_reg + GP1 + 5);
+ return -EBUSY;
+ }
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, priv);
+
+ for (i = 0; i < ARRAY_SIZE(priv->blocks); i++) {
+ block = &priv->blocks[i];
+
+ spin_lock_init(&block->lock);
+
+ block->chip.label = DRV_NAME;
+ block->chip.owner = THIS_MODULE;
+ block->chip.request = sch311x_gpio_request;
+ block->chip.free = sch311x_gpio_free;
+ block->chip.direction_input = sch311x_gpio_direction_in;
+ block->chip.direction_output = sch311x_gpio_direction_out;
+ block->chip.get = sch311x_gpio_get;
+ block->chip.set = sch311x_gpio_set;
+ block->chip.ngpio = 8;
+ block->chip.dev = &pdev->dev;
+ block->chip.base = sch311x_gpio_blocks[i].base;
+ block->config_regs = sch311x_gpio_blocks[i].config_regs;
+ block->data_reg = sch311x_gpio_blocks[i].data_reg;
+ block->runtime_reg = pdata->runtime_reg;
+
+ err = gpiochip_add(&block->chip);
+ if (err < 0) {
+ dev_err(&pdev->dev,
+ "Could not register gpiochip, %d\n", err);
+ goto exit_err;
+ }
+ dev_info(&pdev->dev,
+ "SMSC SCH311x GPIO block %d registered.\n", i);
+ }
+
+ return 0;
+
+exit_err:
+ release_region(pdata->runtime_reg + GP1, 6);
+ /* release already registered chips */
+ for (--i; i >= 0; i--)
+ gpiochip_remove(&priv->blocks[i].chip);
+ return err;
+}
+
+static int sch311x_gpio_remove(struct platform_device *pdev)
+{
+ struct sch311x_pdev_data *pdata = pdev->dev.platform_data;
+ struct sch311x_gpio_priv *priv = platform_get_drvdata(pdev);
+ int err, i;
+
+ release_region(pdata->runtime_reg + GP1, 6);
+
+ for (i = 0; i < ARRAY_SIZE(priv->blocks); i++) {
+ err = gpiochip_remove(&priv->blocks[i].chip);
+ if (err)
+ return err;
+ dev_info(&pdev->dev,
+ "SMSC SCH311x GPIO block %d unregistered.\n", i);
+ }
+ return 0;
+}
+
+static struct platform_driver sch311x_gpio_driver = {
+ .driver.name = DRV_NAME,
+ .driver.owner = THIS_MODULE,
+ .probe = sch311x_gpio_probe,
+ .remove = sch311x_gpio_remove,
+};
+
+
+/*
+ * Init & exit routines
+ */
+
+static int __init sch311x_detect(int sio_config_port, unsigned short *addr)
+{
+ int err = 0, reg;
+ unsigned short base_addr;
+ unsigned char dev_id;
+
+ err = sch311x_sio_enter(sio_config_port);
+ if (err)
+ return err;
+
+ /* Check device ID. We currently know about:
+ * SCH3112 (0x7c), SCH3114 (0x7d), and SCH3116 (0x7f). */
+ reg = sch311x_sio_inb(sio_config_port, 0x20);
+ if (!(reg == 0x7c || reg == 0x7d || reg == 0x7f)) {
+ err = -ENODEV;
+ goto exit;
+ }
+ dev_id = reg == 0x7c ? 2 : reg == 0x7d ? 4 : 6;
+
+ /* Select logical device A (runtime registers) */
+ sch311x_sio_outb(sio_config_port, 0x07, 0x0a);
+
+ /* Check if Logical Device Register is currently active */
+ if ((sch311x_sio_inb(sio_config_port, 0x30) & 0x01) == 0)
+ pr_info("Seems that LDN 0x0a is not active...\n");
+
+ /* Get the base address of the runtime registers */
+ base_addr = (sch311x_sio_inb(sio_config_port, 0x60) << 8) |
+ sch311x_sio_inb(sio_config_port, 0x61);
+ if (!base_addr) {
+ pr_err("Base address not set\n");
+ err = -ENODEV;
+ goto exit;
+ }
+ *addr = base_addr;
+
+ pr_info("Found an SMSC SCH311%d chip at 0x%04x\n", dev_id, base_addr);
+
+exit:
+ sch311x_sio_exit(sio_config_port);
+ return err;
+}
+
+static int __init sch311x_gpio_pdev_add(const unsigned short addr)
+{
+ struct sch311x_pdev_data pdata;
+ int err;
+
+ pdata.runtime_reg = addr;
+
+ sch311x_gpio_pdev = platform_device_alloc(DRV_NAME, -1);
+ if (!sch311x_gpio_pdev)
+ return -ENOMEM;
+
+ err = platform_device_add_data(sch311x_gpio_pdev,
+ &pdata, sizeof(pdata));
+ if (err) {
+ pr_err(DRV_NAME "Platform data allocation failed\n");
+ goto err;
+ }
+
+ err = platform_device_add(sch311x_gpio_pdev);
+ if (err) {
+ pr_err(DRV_NAME "Device addition failed\n");
+ goto err;
+ }
+ return 0;
+
+err:
+ platform_device_put(sch311x_gpio_pdev);
+ return err;
+}
+
+static int __init sch311x_gpio_init(void)
+{
+ int err, i;
+ unsigned short addr = 0;
+
+ for (i = 0; i < ARRAY_SIZE(sch311x_ioports); i++)
+ if (sch311x_detect(sch311x_ioports[i], &addr) == 0)
+ break;
+
+ if (!addr)
+ return -ENODEV;
+
+ err = platform_driver_register(&sch311x_gpio_driver);
+ if (err)
+ return err;
+
+ err = sch311x_gpio_pdev_add(addr);
+ if (err)
+ goto unreg_platform_driver;
+
+ return 0;
+
+unreg_platform_driver:
+ platform_driver_unregister(&sch311x_gpio_driver);
+ return err;
+}
+
+static void __exit sch311x_gpio_exit(void)
+{
+ platform_device_unregister(sch311x_gpio_pdev);
+ platform_driver_unregister(&sch311x_gpio_driver);
+}
+
+module_init(sch311x_gpio_init);
+module_exit(sch311x_gpio_exit);
+
+MODULE_AUTHOR("Bruno Randolf <br1@einfach.org>");
+MODULE_DESCRIPTION("SMSC SCH311x GPIO Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:gpio-sch311x");
diff --git a/drivers/gpio/gpio-sodaville.c b/drivers/gpio/gpio-sodaville.c
index 88f374a..7c6c518 100644
--- a/drivers/gpio/gpio-sodaville.c
+++ b/drivers/gpio/gpio-sodaville.c
@@ -176,8 +176,10 @@
sd->id = irq_domain_add_legacy(pdev->dev.of_node, SDV_NUM_PUB_GPIOS,
sd->irq_base, 0, &irq_domain_sdv_ops, sd);
- if (!sd->id)
+ if (!sd->id) {
+ ret = -ENODEV;
goto out_free_irq;
+ }
return 0;
out_free_irq:
free_irq(pdev->irq, sd);
@@ -212,8 +214,10 @@
}
addr = pci_resource_start(pdev, GPIO_BAR);
- if (!addr)
+ if (!addr) {
+ ret = -ENODEV;
goto release_reg;
+ }
sd->gpio_pub_base = ioremap(addr, pci_resource_len(pdev, GPIO_BAR));
prop = of_get_property(pdev->dev.of_node, "intel,muxctl", &len);
@@ -270,7 +274,7 @@
kfree(sd);
}
-static DEFINE_PCI_DEVICE_TABLE(sdv_gpio_pci_ids) = {
+static const struct pci_device_id sdv_gpio_pci_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_SDV_GPIO) },
{ 0, },
};
diff --git a/drivers/gpio/gpio-sta2x11.c b/drivers/gpio/gpio-sta2x11.c
index f2fb12c..68e3fcb 100644
--- a/drivers/gpio/gpio-sta2x11.c
+++ b/drivers/gpio/gpio-sta2x11.c
@@ -146,7 +146,7 @@
gpio->dbg_show = NULL;
gpio->base = gpio_base;
gpio->ngpio = GSTA_NR_GPIO;
- gpio->can_sleep = 0;
+ gpio->can_sleep = false;
gpio->to_irq = gsta_gpio_to_irq;
/*
diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c
index 2647e24..2776a09 100644
--- a/drivers/gpio/gpio-stmpe.c
+++ b/drivers/gpio/gpio-stmpe.c
@@ -129,7 +129,7 @@
.set = stmpe_gpio_set,
.to_irq = stmpe_gpio_to_irq,
.request = stmpe_gpio_request,
- .can_sleep = 1,
+ .can_sleep = true,
};
static int stmpe_gpio_irq_set_type(struct irq_data *d, unsigned int type)
diff --git a/drivers/gpio/gpio-sx150x.c b/drivers/gpio/gpio-sx150x.c
index d2983e9..13d73fb 100644
--- a/drivers/gpio/gpio-sx150x.c
+++ b/drivers/gpio/gpio-sx150x.c
@@ -436,7 +436,7 @@
chip->gpio_chip.set = sx150x_gpio_set;
chip->gpio_chip.to_irq = sx150x_gpio_to_irq;
chip->gpio_chip.base = pdata->gpio_base;
- chip->gpio_chip.can_sleep = 1;
+ chip->gpio_chip.can_sleep = true;
chip->gpio_chip.ngpio = chip->dev_cfg->ngpios;
if (pdata->oscio_is_gpo)
++chip->gpio_chip.ngpio;
diff --git a/drivers/gpio/gpio-tb10x.c b/drivers/gpio/gpio-tb10x.c
index da071dd..07bce97 100644
--- a/drivers/gpio/gpio-tb10x.c
+++ b/drivers/gpio/gpio-tb10x.c
@@ -222,7 +222,7 @@
tb10x_gpio->gc.free = tb10x_gpio_free;
tb10x_gpio->gc.base = -1;
tb10x_gpio->gc.ngpio = ngpio;
- tb10x_gpio->gc.can_sleep = 0;
+ tb10x_gpio->gc.can_sleep = false;
ret = gpiochip_add(&tb10x_gpio->gc);
@@ -318,7 +318,7 @@
.remove = tb10x_gpio_remove,
.driver = {
.name = "tb10x-gpio",
- .of_match_table = of_match_ptr(tb10x_gpio_dt_ids),
+ .of_match_table = tb10x_gpio_dt_ids,
.owner = THIS_MODULE,
}
};
diff --git a/drivers/gpio/gpio-tc3589x.c b/drivers/gpio/gpio-tc3589x.c
index ddb5fef..1019320 100644
--- a/drivers/gpio/gpio-tc3589x.c
+++ b/drivers/gpio/gpio-tc3589x.c
@@ -127,7 +127,7 @@
.direction_output = tc3589x_gpio_direction_output,
.set = tc3589x_gpio_set,
.to_irq = tc3589x_gpio_to_irq,
- .can_sleep = 1,
+ .can_sleep = true,
};
static int tc3589x_gpio_irq_set_type(struct irq_data *d, unsigned int type)
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index cfd3b90..2b49f87 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -425,6 +425,7 @@
struct tegra_gpio_soc_config *config;
struct resource *res;
struct tegra_gpio_bank *bank;
+ int ret;
int gpio;
int i;
int j;
@@ -494,7 +495,11 @@
tegra_gpio_chip.of_node = pdev->dev.of_node;
- gpiochip_add(&tegra_gpio_chip);
+ ret = gpiochip_add(&tegra_gpio_chip);
+ if (ret < 0) {
+ irq_domain_remove(irq_domain);
+ return ret;
+ }
for (gpio = 0; gpio < tegra_gpio_chip.ngpio; gpio++) {
int irq = irq_create_mapping(irq_domain, gpio);
diff --git a/drivers/gpio/gpio-timberdale.c b/drivers/gpio/gpio-timberdale.c
index 7a0e956..f9a8fbd 100644
--- a/drivers/gpio/gpio-timberdale.c
+++ b/drivers/gpio/gpio-timberdale.c
@@ -275,7 +275,7 @@
gc->dbg_show = NULL;
gc->base = pdata->gpio_base;
gc->ngpio = pdata->nr_pins;
- gc->can_sleep = 0;
+ gc->can_sleep = false;
err = gpiochip_add(gc);
if (err)
@@ -290,8 +290,8 @@
return 0;
for (i = 0; i < pdata->nr_pins; i++) {
- irq_set_chip_and_handler_name(tgpio->irq_base + i,
- &timbgpio_irqchip, handle_simple_irq, "mux");
+ irq_set_chip_and_handler(tgpio->irq_base + i,
+ &timbgpio_irqchip, handle_simple_irq);
irq_set_chip_data(tgpio->irq_base + i, tgpio);
#ifdef CONFIG_ARM
set_irq_flags(tgpio->irq_base + i, IRQF_VALID | IRQF_PROBE);
diff --git a/drivers/gpio/gpio-tnetv107x.c b/drivers/gpio/gpio-tnetv107x.c
index 58445bb..4aa4815 100644
--- a/drivers/gpio/gpio-tnetv107x.c
+++ b/drivers/gpio/gpio-tnetv107x.c
@@ -176,7 +176,7 @@
ctlr = &chips[i];
ctlr->chip.label = "tnetv107x";
- ctlr->chip.can_sleep = 0;
+ ctlr->chip.can_sleep = false;
ctlr->chip.base = base;
ctlr->chip.ngpio = ngpio - base;
if (ctlr->chip.ngpio > 32)
diff --git a/drivers/gpio/gpio-tps6586x.c b/drivers/gpio/gpio-tps6586x.c
index 29e8e75..8994dfa 100644
--- a/drivers/gpio/gpio-tps6586x.c
+++ b/drivers/gpio/gpio-tps6586x.c
@@ -108,7 +108,7 @@
tps6586x_gpio->gpio_chip.label = pdev->name;
tps6586x_gpio->gpio_chip.dev = &pdev->dev;
tps6586x_gpio->gpio_chip.ngpio = 4;
- tps6586x_gpio->gpio_chip.can_sleep = 1;
+ tps6586x_gpio->gpio_chip.can_sleep = true;
/* FIXME: add handling of GPIOs as dedicated inputs */
tps6586x_gpio->gpio_chip.direction_output = tps6586x_gpio_output;
diff --git a/drivers/gpio/gpio-tps65910.c b/drivers/gpio/gpio-tps65910.c
index 0614621..b6e818e 100644
--- a/drivers/gpio/gpio-tps65910.c
+++ b/drivers/gpio/gpio-tps65910.c
@@ -143,7 +143,7 @@
default:
return -EINVAL;
}
- tps65910_gpio->gpio_chip.can_sleep = 1;
+ tps65910_gpio->gpio_chip.can_sleep = true;
tps65910_gpio->gpio_chip.direction_input = tps65910_gpio_input;
tps65910_gpio->gpio_chip.direction_output = tps65910_gpio_output;
tps65910_gpio->gpio_chip.set = tps65910_gpio_set;
diff --git a/drivers/gpio/gpio-tps65912.c b/drivers/gpio/gpio-tps65912.c
index 276a422..59ee486 100644
--- a/drivers/gpio/gpio-tps65912.c
+++ b/drivers/gpio/gpio-tps65912.c
@@ -79,7 +79,7 @@
.direction_output = tps65912_gpio_output,
.get = tps65912_gpio_get,
.set = tps65912_gpio_set,
- .can_sleep = 1,
+ .can_sleep = true,
.ngpio = 5,
.base = -1,
};
diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c
index f999689..8b88ca2 100644
--- a/drivers/gpio/gpio-twl4030.c
+++ b/drivers/gpio/gpio-twl4030.c
@@ -396,7 +396,7 @@
.direction_output = twl_direction_out,
.set = twl_set,
.to_irq = twl_to_irq,
- .can_sleep = 1,
+ .can_sleep = true,
};
/*----------------------------------------------------------------------*/
diff --git a/drivers/gpio/gpio-twl6040.c b/drivers/gpio/gpio-twl6040.c
index d420d30..0caf5cd 100644
--- a/drivers/gpio/gpio-twl6040.c
+++ b/drivers/gpio/gpio-twl6040.c
@@ -77,7 +77,7 @@
.get = twl6040gpo_get,
.direction_output = twl6040gpo_direction_out,
.set = twl6040gpo_set,
- .can_sleep = 1,
+ .can_sleep = true,
};
/*----------------------------------------------------------------------*/
diff --git a/drivers/gpio/gpio-ucb1400.c b/drivers/gpio/gpio-ucb1400.c
index 06fb5cf..2445fe7 100644
--- a/drivers/gpio/gpio-ucb1400.c
+++ b/drivers/gpio/gpio-ucb1400.c
@@ -64,7 +64,7 @@
ucb->gc.direction_output = ucb1400_gpio_dir_out;
ucb->gc.get = ucb1400_gpio_get;
ucb->gc.set = ucb1400_gpio_set;
- ucb->gc.can_sleep = 1;
+ ucb->gc.can_sleep = true;
err = gpiochip_add(&ucb->gc);
if (err)
diff --git a/drivers/gpio/gpio-viperboard.c b/drivers/gpio/gpio-viperboard.c
index 5ac2919..79e3b58 100644
--- a/drivers/gpio/gpio-viperboard.c
+++ b/drivers/gpio/gpio-viperboard.c
@@ -413,7 +413,7 @@
vb_gpio->gpioa.owner = THIS_MODULE;
vb_gpio->gpioa.base = -1;
vb_gpio->gpioa.ngpio = 16;
- vb_gpio->gpioa.can_sleep = 1;
+ vb_gpio->gpioa.can_sleep = true;
vb_gpio->gpioa.set = vprbrd_gpioa_set;
vb_gpio->gpioa.get = vprbrd_gpioa_get;
vb_gpio->gpioa.direction_input = vprbrd_gpioa_direction_input;
@@ -430,7 +430,7 @@
vb_gpio->gpiob.owner = THIS_MODULE;
vb_gpio->gpiob.base = -1;
vb_gpio->gpiob.ngpio = 16;
- vb_gpio->gpiob.can_sleep = 1;
+ vb_gpio->gpiob.can_sleep = true;
vb_gpio->gpiob.set = vprbrd_gpiob_set;
vb_gpio->gpiob.get = vprbrd_gpiob_get;
vb_gpio->gpiob.direction_input = vprbrd_gpiob_direction_input;
diff --git a/drivers/gpio/gpio-vx855.c b/drivers/gpio/gpio-vx855.c
index cddfa22..0fd23b6 100644
--- a/drivers/gpio/gpio-vx855.c
+++ b/drivers/gpio/gpio-vx855.c
@@ -214,7 +214,7 @@
c->dbg_show = NULL;
c->base = 0;
c->ngpio = NR_VX855_GP;
- c->can_sleep = 0;
+ c->can_sleep = false;
c->names = vx855gpio_names;
}
diff --git a/drivers/gpio/gpio-wm831x.c b/drivers/gpio/gpio-wm831x.c
index 456000c..b18a1a2 100644
--- a/drivers/gpio/gpio-wm831x.c
+++ b/drivers/gpio/gpio-wm831x.c
@@ -240,7 +240,7 @@
.to_irq = wm831x_gpio_to_irq,
.set_debounce = wm831x_gpio_set_debounce,
.dbg_show = wm831x_gpio_dbg_show,
- .can_sleep = 1,
+ .can_sleep = true,
};
static int wm831x_gpio_probe(struct platform_device *pdev)
diff --git a/drivers/gpio/gpio-wm8350.c b/drivers/gpio/gpio-wm8350.c
index fc49154..2487f9d 100644
--- a/drivers/gpio/gpio-wm8350.c
+++ b/drivers/gpio/gpio-wm8350.c
@@ -106,7 +106,7 @@
.direction_output = wm8350_gpio_direction_out,
.set = wm8350_gpio_set,
.to_irq = wm8350_gpio_to_irq,
- .can_sleep = 1,
+ .can_sleep = true,
};
static int wm8350_gpio_probe(struct platform_device *pdev)
diff --git a/drivers/gpio/gpio-wm8994.c b/drivers/gpio/gpio-wm8994.c
index a53dbde..d93b6b5 100644
--- a/drivers/gpio/gpio-wm8994.c
+++ b/drivers/gpio/gpio-wm8994.c
@@ -242,7 +242,7 @@
.set = wm8994_gpio_set,
.to_irq = wm8994_gpio_to_irq,
.dbg_show = wm8994_gpio_dbg_show,
- .can_sleep = 1,
+ .can_sleep = true,
};
static int wm8994_gpio_probe(struct platform_device *pdev)
diff --git a/drivers/gpio/gpio-xtensa.c b/drivers/gpio/gpio-xtensa.c
new file mode 100644
index 0000000..1d136ec
--- /dev/null
+++ b/drivers/gpio/gpio-xtensa.c
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2013 TangoTec Ltd.
+ * Author: Baruch Siach <baruch@tkos.co.il>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Driver for the Xtensa LX4 GPIO32 Option
+ *
+ * Documentation: Xtensa LX4 Microprocessor Data Book, Section 2.22
+ *
+ * GPIO32 is a standard optional extension to the Xtensa architecture core that
+ * provides preconfigured output and input ports for intra SoC signaling. The
+ * GPIO32 option is implemented as 32bit Tensilica Instruction Extension (TIE)
+ * output state called EXPSTATE, and 32bit input wire called IMPWIRE. This
+ * driver treats input and output states as two distinct devices.
+ *
+ * Access to GPIO32 specific instructions is controlled by the CPENABLE
+ * (Coprocessor Enable Bits) register. By default Xtensa Linux startup code
+ * disables access to all coprocessors. This driver sets the CPENABLE bit
+ * corresponding to GPIO32 before any GPIO32 specific instruction, and restores
+ * CPENABLE state after that.
+ *
+ * This driver is currently incompatible with SMP. The GPIO32 extension is not
+ * guaranteed to be available in all cores. Moreover, each core controls a
+ * different set of IO wires. A theoretical SMP aware version of this driver
+ * would need to have a per core workqueue to do the actual GPIO manipulation.
+ */
+
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/gpio.h>
+#include <linux/bitops.h>
+#include <linux/platform_device.h>
+
+#include <asm/coprocessor.h> /* CPENABLE read/write macros */
+
+#ifndef XCHAL_CP_ID_XTIOP
+#error GPIO32 option is not enabled for your xtensa core variant
+#endif
+
+static inline unsigned long enable_cp(unsigned long *cpenable)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ RSR_CPENABLE(*cpenable);
+ WSR_CPENABLE(*cpenable | BIT(XCHAL_CP_ID_XTIOP));
+
+ return flags;
+}
+
+static inline void disable_cp(unsigned long flags, unsigned long cpenable)
+{
+ WSR_CPENABLE(cpenable);
+ local_irq_restore(flags);
+}
+
+static int xtensa_impwire_get_direction(struct gpio_chip *gc, unsigned offset)
+{
+ return 1; /* input only */
+}
+
+static int xtensa_impwire_get_value(struct gpio_chip *gc, unsigned offset)
+{
+ unsigned long flags, saved_cpenable;
+ u32 impwire;
+
+ flags = enable_cp(&saved_cpenable);
+ __asm__ __volatile__("read_impwire %0" : "=a" (impwire));
+ disable_cp(flags, saved_cpenable);
+
+ return !!(impwire & BIT(offset));
+}
+
+static void xtensa_impwire_set_value(struct gpio_chip *gc, unsigned offset,
+ int value)
+{
+ BUG(); /* output only; should never be called */
+}
+
+static int xtensa_expstate_get_direction(struct gpio_chip *gc, unsigned offset)
+{
+ return 0; /* output only */
+}
+
+static int xtensa_expstate_get_value(struct gpio_chip *gc, unsigned offset)
+{
+ unsigned long flags, saved_cpenable;
+ u32 expstate;
+
+ flags = enable_cp(&saved_cpenable);
+ __asm__ __volatile__("rur.expstate %0" : "=a" (expstate));
+ disable_cp(flags, saved_cpenable);
+
+ return !!(expstate & BIT(offset));
+}
+
+static void xtensa_expstate_set_value(struct gpio_chip *gc, unsigned offset,
+ int value)
+{
+ unsigned long flags, saved_cpenable;
+ u32 mask = BIT(offset);
+ u32 val = value ? BIT(offset) : 0;
+
+ flags = enable_cp(&saved_cpenable);
+ __asm__ __volatile__("wrmsk_expstate %0, %1"
+ :: "a" (val), "a" (mask));
+ disable_cp(flags, saved_cpenable);
+}
+
+static struct gpio_chip impwire_chip = {
+ .label = "impwire",
+ .base = -1,
+ .ngpio = 32,
+ .get_direction = xtensa_impwire_get_direction,
+ .get = xtensa_impwire_get_value,
+ .set = xtensa_impwire_set_value,
+};
+
+static struct gpio_chip expstate_chip = {
+ .label = "expstate",
+ .base = -1,
+ .ngpio = 32,
+ .get_direction = xtensa_expstate_get_direction,
+ .get = xtensa_expstate_get_value,
+ .set = xtensa_expstate_set_value,
+};
+
+static int xtensa_gpio_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ ret = gpiochip_add(&impwire_chip);
+ if (ret)
+ return ret;
+ return gpiochip_add(&expstate_chip);
+}
+
+static struct platform_driver xtensa_gpio_driver = {
+ .driver = {
+ .name = "xtensa-gpio",
+ .owner = THIS_MODULE,
+ },
+ .probe = xtensa_gpio_probe,
+};
+
+static int __init xtensa_gpio_init(void)
+{
+ struct platform_device *pdev;
+
+ pdev = platform_device_register_simple("xtensa-gpio", 0, NULL, 0);
+ if (IS_ERR(pdev))
+ return PTR_ERR(pdev);
+
+ return platform_driver_register(&xtensa_gpio_driver);
+}
+device_initcall(xtensa_gpio_init);
+
+MODULE_AUTHOR("Baruch Siach <baruch@tkos.co.il>");
+MODULE_DESCRIPTION("Xtensa LX4 GPIO32 driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index ae0ffdc..716ee98 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -12,11 +12,13 @@
#include <linux/errno.h>
#include <linux/gpio/consumer.h>
+#include <linux/gpio/driver.h>
#include <linux/export.h>
-#include <linux/acpi_gpio.h>
#include <linux/acpi.h>
#include <linux/interrupt.h>
+#include "gpiolib.h"
+
struct acpi_gpio_evt_pin {
struct list_head node;
acpi_handle *evt_handle;
@@ -94,7 +96,7 @@
* gpio pins have acpi event methods and assigns interrupt handlers that calls
* the acpi event methods for those pins.
*/
-void acpi_gpiochip_request_interrupts(struct gpio_chip *chip)
+static void acpi_gpiochip_request_interrupts(struct gpio_chip *chip)
{
struct acpi_buffer buf = {ACPI_ALLOCATE_BUFFER, NULL};
struct acpi_resource *res;
@@ -192,7 +194,6 @@
irq);
}
}
-EXPORT_SYMBOL(acpi_gpiochip_request_interrupts);
/**
* acpi_gpiochip_free_interrupts() - Free GPIO _EVT ACPI event interrupts.
@@ -203,7 +204,7 @@
* The remaining ACPI event interrupts associated with the chip are freed
* automatically.
*/
-void acpi_gpiochip_free_interrupts(struct gpio_chip *chip)
+static void acpi_gpiochip_free_interrupts(struct gpio_chip *chip)
{
acpi_handle handle;
acpi_status status;
@@ -230,7 +231,6 @@
acpi_detach_data(handle, acpi_gpio_evt_dh);
kfree(evt_pins);
}
-EXPORT_SYMBOL(acpi_gpiochip_free_interrupts);
struct acpi_gpio_lookup {
struct acpi_gpio_info info;
@@ -307,6 +307,15 @@
if (lookup.desc && info)
*info = lookup.info;
- return lookup.desc ? lookup.desc : ERR_PTR(-ENODEV);
+ return lookup.desc ? lookup.desc : ERR_PTR(-ENOENT);
}
-EXPORT_SYMBOL_GPL(acpi_get_gpiod_by_index);
+
+void acpi_gpiochip_add(struct gpio_chip *chip)
+{
+ acpi_gpiochip_request_interrupts(chip);
+}
+
+void acpi_gpiochip_remove(struct gpio_chip *chip)
+{
+ acpi_gpiochip_free_interrupts(chip);
+}
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index c8a7c81..50c4922 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -10,12 +10,13 @@
#include <linux/seq_file.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
-#include <linux/acpi_gpio.h>
#include <linux/idr.h>
#include <linux/slab.h>
#include <linux/acpi.h>
#include <linux/gpio/driver.h>
+#include "gpiolib.h"
+
#define CREATE_TRACE_POINTS
#include <trace/events/gpio.h>
@@ -84,40 +85,57 @@
static int gpiod_request(struct gpio_desc *desc, const char *label);
static void gpiod_free(struct gpio_desc *desc);
+/* With descriptor prefix */
+
#ifdef CONFIG_DEBUG_FS
-#define gpiod_emerg(desc, fmt, ...) \
- pr_emerg("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label, \
+#define gpiod_emerg(desc, fmt, ...) \
+ pr_emerg("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?",\
##__VA_ARGS__)
-#define gpiod_crit(desc, fmt, ...) \
- pr_crit("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label, \
+#define gpiod_crit(desc, fmt, ...) \
+ pr_crit("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?", \
##__VA_ARGS__)
-#define gpiod_err(desc, fmt, ...) \
- pr_err("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label, \
+#define gpiod_err(desc, fmt, ...) \
+ pr_err("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?", \
##__VA_ARGS__)
-#define gpiod_warn(desc, fmt, ...) \
- pr_warn("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label, \
+#define gpiod_warn(desc, fmt, ...) \
+ pr_warn("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?", \
##__VA_ARGS__)
-#define gpiod_info(desc, fmt, ...) \
- pr_info("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label, \
+#define gpiod_info(desc, fmt, ...) \
+ pr_info("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?", \
##__VA_ARGS__)
-#define gpiod_dbg(desc, fmt, ...) \
- pr_debug("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label, \
+#define gpiod_dbg(desc, fmt, ...) \
+ pr_debug("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label ? : "?",\
##__VA_ARGS__)
#else
-#define gpiod_emerg(desc, fmt, ...) \
+#define gpiod_emerg(desc, fmt, ...) \
pr_emerg("gpio-%d: " fmt, desc_to_gpio(desc), ##__VA_ARGS__)
-#define gpiod_crit(desc, fmt, ...) \
+#define gpiod_crit(desc, fmt, ...) \
pr_crit("gpio-%d: " fmt, desc_to_gpio(desc), ##__VA_ARGS__)
-#define gpiod_err(desc, fmt, ...) \
+#define gpiod_err(desc, fmt, ...) \
pr_err("gpio-%d: " fmt, desc_to_gpio(desc), ##__VA_ARGS__)
-#define gpiod_warn(desc, fmt, ...) \
+#define gpiod_warn(desc, fmt, ...) \
pr_warn("gpio-%d: " fmt, desc_to_gpio(desc), ##__VA_ARGS__)
-#define gpiod_info(desc, fmt, ...) \
+#define gpiod_info(desc, fmt, ...) \
pr_info("gpio-%d: " fmt, desc_to_gpio(desc), ##__VA_ARGS__)
-#define gpiod_dbg(desc, fmt, ...) \
+#define gpiod_dbg(desc, fmt, ...) \
pr_debug("gpio-%d: " fmt, desc_to_gpio(desc), ##__VA_ARGS__)
#endif
+/* With chip prefix */
+
+#define chip_emerg(chip, fmt, ...) \
+ pr_emerg("GPIO chip %s: " fmt, chip->label, ##__VA_ARGS__)
+#define chip_crit(chip, fmt, ...) \
+ pr_crit("GPIO chip %s: " fmt, chip->label, ##__VA_ARGS__)
+#define chip_err(chip, fmt, ...) \
+ pr_err("GPIO chip %s: " fmt, chip->label, ##__VA_ARGS__)
+#define chip_warn(chip, fmt, ...) \
+ pr_warn("GPIO chip %s: " fmt, chip->label, ##__VA_ARGS__)
+#define chip_info(chip, fmt, ...) \
+ pr_info("GPIO chip %s: " fmt, chip->label, ##__VA_ARGS__)
+#define chip_dbg(chip, fmt, ...) \
+ pr_debug("GPIO chip %s: " fmt, chip->label, ##__VA_ARGS__)
+
static inline void desc_set_label(struct gpio_desc *d, const char *label)
{
#ifdef CONFIG_DEBUG_FS
@@ -151,9 +169,10 @@
static struct gpio_desc *gpiochip_offset_to_desc(struct gpio_chip *chip,
unsigned int offset)
{
- unsigned int gpio = chip->base + offset;
+ if (offset >= chip->ngpio)
+ return ERR_PTR(-EINVAL);
- return gpio_to_desc(gpio);
+ return &chip->desc[offset];
}
/**
@@ -187,7 +206,8 @@
if (WARN(test_and_set_bit(FLAG_REQUESTED, &desc->flags) == 0,
"autorequest GPIO-%d\n", gpio)) {
if (!try_module_get(chip->owner)) {
- pr_err("GPIO-%d: module can't be gotten \n", gpio);
+ gpiod_err(desc, "%s: module can't be gotten\n",
+ __func__);
clear_bit(FLAG_REQUESTED, &desc->flags);
/* lose */
return -EIO;
@@ -808,8 +828,8 @@
if (!test_bit(FLAG_REQUESTED, &desc->flags) ||
test_bit(FLAG_EXPORT, &desc->flags)) {
spin_unlock_irqrestore(&gpio_lock, flags);
- pr_debug("%s: gpio %d unavailable (requested=%d, exported=%d)\n",
- __func__, desc_to_gpio(desc),
+ gpiod_dbg(desc, "%s: unavailable (requested=%d, exported=%d)\n",
+ __func__,
test_bit(FLAG_REQUESTED, &desc->flags),
test_bit(FLAG_EXPORT, &desc->flags));
status = -EPERM;
@@ -857,8 +877,7 @@
device_unregister(dev);
fail_unlock:
mutex_unlock(&sysfs_lock);
- pr_debug("%s: gpio%d status %d\n", __func__, desc_to_gpio(desc),
- status);
+ gpiod_dbg(desc, "%s: status %d\n", __func__, status);
return status;
}
EXPORT_SYMBOL_GPL(gpiod_export);
@@ -906,8 +925,7 @@
mutex_unlock(&sysfs_lock);
if (status)
- pr_debug("%s: gpio%d status %d\n", __func__, desc_to_gpio(desc),
- status);
+ gpiod_dbg(desc, "%s: status %d\n", __func__, status);
return status;
}
@@ -951,8 +969,7 @@
mutex_unlock(&sysfs_lock);
if (status)
- pr_debug("%s: gpio%d status %d\n", __func__, desc_to_gpio(desc),
- status);
+ gpiod_dbg(desc, "%s: status %d\n", __func__, status);
return status;
}
@@ -994,8 +1011,7 @@
}
if (status)
- pr_debug("%s: gpio%d status %d\n", __func__, desc_to_gpio(desc),
- status);
+ gpiod_dbg(desc, "%s: status %d\n", __func__, status);
}
EXPORT_SYMBOL_GPL(gpiod_unexport);
@@ -1034,8 +1050,7 @@
chip->desc[gpio++].chip = NULL;
spin_unlock_irqrestore(&gpio_lock, flags);
- pr_debug("%s: chip %s status %d\n", __func__,
- chip->label, status);
+ chip_dbg(chip, "%s: status %d\n", __func__, status);
}
return status;
@@ -1051,15 +1066,14 @@
if (dev) {
put_device(dev);
device_unregister(dev);
- chip->exported = 0;
+ chip->exported = false;
status = 0;
} else
status = -ENODEV;
mutex_unlock(&sysfs_lock);
if (status)
- pr_debug("%s: chip %s status %d\n", __func__,
- chip->label, status);
+ chip_dbg(chip, "%s: status %d\n", __func__, status);
}
static int __init gpiolib_sysfs_init(void)
@@ -1213,6 +1227,7 @@
#endif
of_gpiochip_add(chip);
+ acpi_gpiochip_add(chip);
if (status)
goto fail;
@@ -1221,7 +1236,7 @@
if (status)
goto fail;
- pr_debug("gpiochip_add: registered GPIOs %d to %d on device: %s\n",
+ pr_debug("%s: registered GPIOs %d to %d on device: %s\n", __func__,
chip->base, chip->base + chip->ngpio - 1,
chip->label ? : "generic");
@@ -1231,7 +1246,7 @@
spin_unlock_irqrestore(&gpio_lock, flags);
fail:
/* failures here can mean systems won't boot... */
- pr_err("gpiochip_add: gpios %d..%d (%s) failed to register\n",
+ pr_err("%s: GPIOs %d..%d (%s) failed to register\n", __func__,
chip->base, chip->base + chip->ngpio - 1,
chip->label ? : "generic");
return status;
@@ -1254,6 +1269,7 @@
gpiochip_remove_pin_ranges(chip);
of_gpiochip_remove(chip);
+ acpi_gpiochip_remove(chip);
for (id = 0; id < chip->ngpio; id++) {
if (test_bit(FLAG_REQUESTED, &chip->desc[id].flags)) {
@@ -1339,8 +1355,7 @@
pin_range = kzalloc(sizeof(*pin_range), GFP_KERNEL);
if (!pin_range) {
- pr_err("%s: GPIO chip: failed to allocate pin ranges\n",
- chip->label);
+ chip_err(chip, "failed to allocate pin ranges\n");
return -ENOMEM;
}
@@ -1361,9 +1376,8 @@
pinctrl_add_gpio_range(pctldev, &pin_range->range);
- pr_debug("GPIO chip %s: created GPIO range %d->%d ==> %s PINGRP %s\n",
- chip->label, gpio_offset,
- gpio_offset + pin_range->range.npins - 1,
+ chip_dbg(chip, "created GPIO range %d->%d ==> %s PINGRP %s\n",
+ gpio_offset, gpio_offset + pin_range->range.npins - 1,
pinctrl_dev_get_devname(pctldev), pin_group);
list_add_tail(&pin_range->node, &chip->pin_ranges);
@@ -1390,8 +1404,7 @@
pin_range = kzalloc(sizeof(*pin_range), GFP_KERNEL);
if (!pin_range) {
- pr_err("%s: GPIO chip: failed to allocate pin ranges\n",
- chip->label);
+ chip_err(chip, "failed to allocate pin ranges\n");
return -ENOMEM;
}
@@ -1406,13 +1419,12 @@
&pin_range->range);
if (IS_ERR(pin_range->pctldev)) {
ret = PTR_ERR(pin_range->pctldev);
- pr_err("%s: GPIO chip: could not create pin range\n",
- chip->label);
+ chip_err(chip, "could not create pin range\n");
kfree(pin_range);
return ret;
}
- pr_debug("GPIO chip %s: created GPIO range %d->%d ==> %s PIN %d->%d\n",
- chip->label, gpio_offset, gpio_offset + npins - 1,
+ chip_dbg(chip, "created GPIO range %d->%d ==> %s PIN %d->%d\n",
+ gpio_offset, gpio_offset + npins - 1,
pinctl_name,
pin_offset, pin_offset + npins - 1);
@@ -1499,8 +1511,7 @@
}
done:
if (status)
- pr_debug("_gpio_request: gpio-%d (%s) status %d\n",
- desc_to_gpio(desc), label ? : "?", status);
+ gpiod_dbg(desc, "%s: status %d\n", __func__, status);
spin_unlock_irqrestore(&gpio_lock, flags);
return status;
}
@@ -1701,7 +1712,7 @@
if (!chip->get || !chip->direction_input) {
gpiod_warn(desc,
"%s: missing get() or direction_input() operations\n",
- __func__);
+ __func__);
return -EIO;
}
@@ -1721,7 +1732,8 @@
if (status) {
status = chip->request(chip, offset);
if (status < 0) {
- gpiod_dbg(desc, "chip request fail, %d\n", status);
+ gpiod_dbg(desc, "%s: chip request fail, %d\n",
+ __func__, status);
/* and it's not available to anyone else ...
* gpio_request() is the fully clean solution.
*/
@@ -1739,7 +1751,7 @@
fail:
spin_unlock_irqrestore(&gpio_lock, flags);
if (status)
- gpiod_dbg(desc, "%s status %d\n", __func__, status);
+ gpiod_dbg(desc, "%s: status %d\n", __func__, status);
return status;
}
EXPORT_SYMBOL_GPL(gpiod_direction_input);
@@ -1806,7 +1818,8 @@
if (status) {
status = chip->request(chip, offset);
if (status < 0) {
- gpiod_dbg(desc, "chip request fail, %d\n", status);
+ gpiod_dbg(desc, "%s: chip request fail, %d\n",
+ __func__, status);
/* and it's not available to anyone else ...
* gpio_request() is the fully clean solution.
*/
@@ -2259,18 +2272,14 @@
EXPORT_SYMBOL_GPL(gpiod_set_value_cansleep);
/**
- * gpiod_add_table() - register GPIO device consumers
- * @table: array of consumers to register
- * @num: number of consumers in table
+ * gpiod_add_lookup_table() - register GPIO device consumers
+ * @table: table of consumers to register
*/
-void gpiod_add_table(struct gpiod_lookup *table, size_t size)
+void gpiod_add_lookup_table(struct gpiod_lookup_table *table)
{
mutex_lock(&gpio_lookup_lock);
- while (size--) {
- list_add_tail(&table->list, &gpio_lookup_list);
- table++;
- }
+ list_add_tail(&table->list, &gpio_lookup_list);
mutex_unlock(&gpio_lookup_lock);
}
@@ -2326,76 +2335,92 @@
return desc;
}
+static struct gpiod_lookup_table *gpiod_find_lookup_table(struct device *dev)
+{
+ const char *dev_id = dev ? dev_name(dev) : NULL;
+ struct gpiod_lookup_table *table;
+
+ mutex_lock(&gpio_lookup_lock);
+
+ list_for_each_entry(table, &gpio_lookup_list, list) {
+ if (table->dev_id && dev_id) {
+ /*
+ * Valid strings on both ends, must be identical to have
+ * a match
+ */
+ if (!strcmp(table->dev_id, dev_id))
+ goto found;
+ } else {
+ /*
+ * One of the pointers is NULL, so both must be to have
+ * a match
+ */
+ if (dev_id == table->dev_id)
+ goto found;
+ }
+ }
+ table = NULL;
+
+found:
+ mutex_unlock(&gpio_lookup_lock);
+ return table;
+}
+
static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id,
unsigned int idx,
enum gpio_lookup_flags *flags)
{
- const char *dev_id = dev ? dev_name(dev) : NULL;
- struct gpio_desc *desc = ERR_PTR(-ENODEV);
- unsigned int match, best = 0;
+ struct gpio_desc *desc = ERR_PTR(-ENOENT);
+ struct gpiod_lookup_table *table;
struct gpiod_lookup *p;
- mutex_lock(&gpio_lookup_lock);
+ table = gpiod_find_lookup_table(dev);
+ if (!table)
+ return desc;
- list_for_each_entry(p, &gpio_lookup_list, list) {
- match = 0;
+ for (p = &table->table[0]; p->chip_label; p++) {
+ struct gpio_chip *chip;
- if (p->dev_id) {
- if (!dev_id || strcmp(p->dev_id, dev_id))
- continue;
-
- match += 2;
- }
-
- if (p->con_id) {
- if (!con_id || strcmp(p->con_id, con_id))
- continue;
-
- match += 1;
- }
-
+ /* idx must always match exactly */
if (p->idx != idx)
continue;
- if (match > best) {
- struct gpio_chip *chip;
+ /* If the lookup entry has a con_id, require exact match */
+ if (p->con_id && (!con_id || strcmp(p->con_id, con_id)))
+ continue;
- chip = find_chip_by_name(p->chip_label);
+ chip = find_chip_by_name(p->chip_label);
- if (!chip) {
- dev_warn(dev, "cannot find GPIO chip %s\n",
- p->chip_label);
- continue;
- }
-
- if (chip->ngpio <= p->chip_hwnum) {
- dev_warn(dev, "GPIO chip %s has %d GPIOs\n",
- chip->label, chip->ngpio);
- continue;
- }
-
- desc = gpio_to_desc(chip->base + p->chip_hwnum);
- *flags = p->flags;
-
- if (match != 3)
- best = match;
- else
- break;
+ if (!chip) {
+ dev_err(dev, "cannot find GPIO chip %s\n",
+ p->chip_label);
+ return ERR_PTR(-ENODEV);
}
- }
- mutex_unlock(&gpio_lookup_lock);
+ if (chip->ngpio <= p->chip_hwnum) {
+ dev_err(dev,
+ "requested GPIO %d is out of range [0..%d] for chip %s\n",
+ idx, chip->ngpio, chip->label);
+ return ERR_PTR(-EINVAL);
+ }
+
+ desc = gpiochip_offset_to_desc(chip, p->chip_hwnum);
+ *flags = p->flags;
+
+ return desc;
+ }
return desc;
}
/**
* gpio_get - obtain a GPIO for a given GPIO function
- * @dev: GPIO consumer
+ * @dev: GPIO consumer, can be NULL for system-global GPIOs
* @con_id: function within the GPIO consumer
*
* Return the GPIO descriptor corresponding to the function con_id of device
- * dev, or an IS_ERR() condition if an error occured.
+ * dev, -ENOENT if no GPIO has been assigned to the requested function, or
+ * another IS_ERR() code if an error occured while trying to acquire the GPIO.
*/
struct gpio_desc *__must_check gpiod_get(struct device *dev, const char *con_id)
{
@@ -2405,14 +2430,16 @@
/**
* gpiod_get_index - obtain a GPIO from a multi-index GPIO function
- * @dev: GPIO consumer
+ * @dev: GPIO consumer, can be NULL for system-global GPIOs
* @con_id: function within the GPIO consumer
* @idx: index of the GPIO to obtain in the consumer
*
* This variant of gpiod_get() allows to access GPIOs other than the first
* defined one for functions that define several GPIOs.
*
- * Return a valid GPIO descriptor, or an IS_ERR() condition in case of error.
+ * Return a valid GPIO descriptor, -ENOENT if no GPIO has been assigned to the
+ * requested function and/or index, or another IS_ERR() code if an error
+ * occured while trying to acquire the GPIO.
*/
struct gpio_desc *__must_check gpiod_get_index(struct device *dev,
const char *con_id,
@@ -2437,13 +2464,9 @@
* Either we are not using DT or ACPI, or their lookup did not return
* a result. In that case, use platform lookup as a fallback.
*/
- if (!desc || IS_ERR(desc)) {
- struct gpio_desc *pdesc;
+ if (!desc || desc == ERR_PTR(-ENOENT)) {
dev_dbg(dev, "using lookup tables for GPIO lookup");
- pdesc = gpiod_find(dev, con_id, idx, &flags);
- /* If used as fallback, do not replace the previous error */
- if (!IS_ERR(pdesc) || !desc)
- desc = pdesc;
+ desc = gpiod_find(dev, con_id, idx, &flags);
}
if (IS_ERR(desc)) {
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h
new file mode 100644
index 0000000..82be586
--- /dev/null
+++ b/drivers/gpio/gpiolib.h
@@ -0,0 +1,46 @@
+/*
+ * Internal GPIO functions.
+ *
+ * Copyright (C) 2013, Intel Corporation
+ * Author: Mika Westerberg <mika.westerberg@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef GPIOLIB_H
+#define GPIOLIB_H
+
+#include <linux/err.h>
+#include <linux/device.h>
+
+/**
+ * struct acpi_gpio_info - ACPI GPIO specific information
+ * @gpioint: if %true this GPIO is of type GpioInt otherwise type is GpioIo
+ * @active_low: in case of @gpioint, the pin is active low
+ */
+struct acpi_gpio_info {
+ bool gpioint;
+ bool active_low;
+};
+
+#ifdef CONFIG_ACPI
+void acpi_gpiochip_add(struct gpio_chip *chip);
+void acpi_gpiochip_remove(struct gpio_chip *chip);
+
+struct gpio_desc *acpi_get_gpiod_by_index(struct device *dev, int index,
+ struct acpi_gpio_info *info);
+#else
+static inline void acpi_gpiochip_add(struct gpio_chip *chip) { }
+static inline void acpi_gpiochip_remove(struct gpio_chip *chip) { }
+
+static inline struct gpio_desc *
+acpi_get_gpiod_by_index(struct device *dev, int index,
+ struct acpi_gpio_info *info)
+{
+ return ERR_PTR(-ENOSYS);
+}
+#endif
+
+#endif /* GPIOLIB_H */
diff --git a/drivers/leds/leds-s3c24xx.c b/drivers/leds/leds-s3c24xx.c
index 76483fb..87cf215 100644
--- a/drivers/leds/leds-s3c24xx.c
+++ b/drivers/leds/leds-s3c24xx.c
@@ -21,6 +21,7 @@
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
+#include <plat/gpio-cfg.h>
#include <linux/platform_data/leds-s3c24xx.h>
/* our context */
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index 2fce5ea..f237826 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -23,7 +23,9 @@
#include <linux/irq.h>
#include <linux/io.h>
+#include <plat/gpio-cfg.h>
#include <mach/dma.h>
+#include <mach/gpio-samsung.h>
#include <linux/platform_data/mmc-s3cmci.h>
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index ef19874..4ede230 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -31,10 +31,9 @@
#include <linux/bitops.h>
#include <linux/types.h>
#include <linux/err.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/interrupt.h>
#include <linux/acpi.h>
-#include <linux/acpi_gpio.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/delay.h>
@@ -199,22 +198,23 @@
return IRQ_HANDLED;
}
-static int sdhci_acpi_add_own_cd(struct device *dev, int gpio,
- struct mmc_host *mmc)
+static int sdhci_acpi_add_own_cd(struct device *dev, struct mmc_host *mmc)
{
+ struct gpio_desc *desc;
unsigned long flags;
int err, irq;
- if (gpio < 0) {
- err = gpio;
+ desc = devm_gpiod_get_index(dev, "sd_cd", 0);
+ if (IS_ERR(desc)) {
+ err = PTR_ERR(desc);
goto out;
}
- err = devm_gpio_request_one(dev, gpio, GPIOF_DIR_IN, "sd_cd");
+ err = gpiod_direction_input(desc);
if (err)
- goto out;
+ goto out_free;
- irq = gpio_to_irq(gpio);
+ irq = gpiod_to_irq(desc);
if (irq < 0) {
err = irq;
goto out_free;
@@ -228,7 +228,7 @@
return 0;
out_free:
- devm_gpio_free(dev, gpio);
+ devm_gpiod_put(dev, desc);
out:
dev_warn(dev, "failed to setup card detect wake up\n");
return err;
@@ -236,8 +236,7 @@
#else
-static int sdhci_acpi_add_own_cd(struct device *dev, int gpio,
- struct mmc_host *mmc)
+static int sdhci_acpi_add_own_cd(struct device *dev, struct mmc_host *mmc)
{
return 0;
}
@@ -254,7 +253,7 @@
struct resource *iomem;
resource_size_t len;
const char *hid;
- int err, gpio;
+ int err;
if (acpi_bus_get_device(handle, &device))
return -ENODEV;
@@ -279,8 +278,6 @@
if (IS_ERR(host))
return PTR_ERR(host);
- gpio = acpi_get_gpio_by_index(dev, 0, NULL);
-
c = sdhci_priv(host);
c->host = host;
c->slot = sdhci_acpi_get_slot(handle, hid);
@@ -338,7 +335,7 @@
goto err_free;
if (sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD)) {
- if (sdhci_acpi_add_own_cd(dev, gpio, host->mmc))
+ if (sdhci_acpi_add_own_cd(dev, host->mmc))
c->use_runtime_pm = false;
}
diff --git a/drivers/pinctrl/pinctrl-as3722.c b/drivers/pinctrl/pinctrl-as3722.c
index 01bffc1..b80f1e1 100644
--- a/drivers/pinctrl/pinctrl-as3722.c
+++ b/drivers/pinctrl/pinctrl-as3722.c
@@ -531,7 +531,7 @@
.direction_input = as3722_gpio_direction_input,
.direction_output = as3722_gpio_direction_output,
.to_irq = as3722_gpio_to_irq,
- .can_sleep = 1,
+ .can_sleep = true,
.ngpio = AS3722_PIN_NUM,
.base = -1,
};
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index a7549c4..9438051 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1527,7 +1527,7 @@
.set = at91_gpio_set,
.to_irq = at91_gpio_to_irq,
.dbg_show = at91_gpio_dbg_show,
- .can_sleep = 0,
+ .can_sleep = false,
.ngpio = MAX_NB_GPIO_PER_BANK,
};
diff --git a/drivers/pinctrl/pinctrl-baytrail.c b/drivers/pinctrl/pinctrl-baytrail.c
index 2832576..72e6a29 100644
--- a/drivers/pinctrl/pinctrl-baytrail.c
+++ b/drivers/pinctrl/pinctrl-baytrail.c
@@ -29,7 +29,6 @@
#include <linux/gpio.h>
#include <linux/irqdomain.h>
#include <linux/acpi.h>
-#include <linux/acpi_gpio.h>
#include <linux/platform_device.h>
#include <linux/seq_file.h>
#include <linux/io.h>
@@ -461,7 +460,7 @@
gc->set = byt_gpio_set;
gc->dbg_show = byt_gpio_dbg_show;
gc->base = -1;
- gc->can_sleep = 0;
+ gc->can_sleep = false;
gc->dev = dev;
ret = gpiochip_add(gc);
@@ -485,9 +484,6 @@
irq_set_handler_data(hwirq, vg);
irq_set_chained_handler(hwirq, byt_gpio_irq_handler);
-
- /* Register interrupt handlers for gpio signaled acpi events */
- acpi_gpiochip_request_interrupts(gc);
}
pm_runtime_enable(dev);
diff --git a/drivers/pinctrl/pinctrl-bcm2835.c b/drivers/pinctrl/pinctrl-bcm2835.c
index c05c1ef..3d907de 100644
--- a/drivers/pinctrl/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/pinctrl-bcm2835.c
@@ -384,7 +384,7 @@
.to_irq = bcm2835_gpio_to_irq,
.base = -1,
.ngpio = BCM2835_NUM_GPIOS,
- .can_sleep = 0,
+ .can_sleep = false,
};
static irqreturn_t bcm2835_gpio_irq_handler(int irq, void *dev_id)
diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
index 7111c3b..a21820f 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -904,7 +904,7 @@
.set = nmk_gpio_set_output,
.to_irq = nmk_gpio_to_irq,
.dbg_show = nmk_gpio_dbg_show,
- .can_sleep = 0,
+ .can_sleep = false,
};
void nmk_gpio_clocks_enable(void)
diff --git a/drivers/pinctrl/pinctrl-sunxi.c b/drivers/pinctrl/pinctrl-sunxi.c
index 119d2dd..6b181cb 100644
--- a/drivers/pinctrl/pinctrl-sunxi.c
+++ b/drivers/pinctrl/pinctrl-sunxi.c
@@ -547,7 +547,7 @@
.of_xlate = sunxi_pinctrl_gpio_of_xlate,
.to_irq = sunxi_pinctrl_gpio_to_irq,
.of_gpio_n_cells = 3,
- .can_sleep = 0,
+ .can_sleep = false,
};
static int sunxi_pinctrl_irq_set_type(struct irq_data *d,
diff --git a/drivers/pinctrl/vt8500/pinctrl-wmt.c b/drivers/pinctrl/vt8500/pinctrl-wmt.c
index 39aec08..b28d1af 100644
--- a/drivers/pinctrl/vt8500/pinctrl-wmt.c
+++ b/drivers/pinctrl/vt8500/pinctrl-wmt.c
@@ -565,7 +565,7 @@
.direction_output = wmt_gpio_direction_output,
.get = wmt_gpio_get_value,
.set = wmt_gpio_set_value,
- .can_sleep = 0,
+ .can_sleep = false,
};
int wmt_pinctrl_probe(struct platform_device *pdev,
diff --git a/include/linux/acpi_gpio.h b/include/linux/acpi_gpio.h
deleted file mode 100644
index d875bc3..0000000
--- a/include/linux/acpi_gpio.h
+++ /dev/null
@@ -1,51 +0,0 @@
-#ifndef _LINUX_ACPI_GPIO_H_
-#define _LINUX_ACPI_GPIO_H_
-
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/errno.h>
-#include <linux/gpio.h>
-#include <linux/gpio/consumer.h>
-
-/**
- * struct acpi_gpio_info - ACPI GPIO specific information
- * @gpioint: if %true this GPIO is of type GpioInt otherwise type is GpioIo
- * @active_low: in case of @gpioint, the pin is active low
- */
-struct acpi_gpio_info {
- bool gpioint;
- bool active_low;
-};
-
-#ifdef CONFIG_GPIO_ACPI
-
-struct gpio_desc *acpi_get_gpiod_by_index(struct device *dev, int index,
- struct acpi_gpio_info *info);
-void acpi_gpiochip_request_interrupts(struct gpio_chip *chip);
-void acpi_gpiochip_free_interrupts(struct gpio_chip *chip);
-
-#else /* CONFIG_GPIO_ACPI */
-
-static inline struct gpio_desc *
-acpi_get_gpiod_by_index(struct device *dev, int index,
- struct acpi_gpio_info *info)
-{
- return ERR_PTR(-ENOSYS);
-}
-
-static inline void acpi_gpiochip_request_interrupts(struct gpio_chip *chip) { }
-static inline void acpi_gpiochip_free_interrupts(struct gpio_chip *chip) { }
-
-#endif /* CONFIG_GPIO_ACPI */
-
-static inline int acpi_get_gpio_by_index(struct device *dev, int index,
- struct acpi_gpio_info *info)
-{
- struct gpio_desc *desc = acpi_get_gpiod_by_index(dev, index, info);
-
- if (IS_ERR(desc))
- return PTR_ERR(desc);
- return desc_to_gpio(desc);
-}
-
-#endif /* _LINUX_ACPI_GPIO_H_ */
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index 13dfd24..b581b13 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -90,7 +90,6 @@
#include <linux/kernel.h>
#include <linux/types.h>
-#include <linux/errno.h>
#include <linux/bug.h>
#include <linux/pinctrl/pinctrl.h>
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 3ea2cf6..a3e181e 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -39,14 +39,15 @@
* @ngpio: the number of GPIOs handled by this controller; the last GPIO
* handled is (base + ngpio - 1).
* @desc: array of ngpio descriptors. Private.
- * @can_sleep: flag must be set iff get()/set() methods sleep, as they
- * must while accessing GPIO expander chips over I2C or SPI
* @names: if set, must be an array of strings to use as alternative
* names for the GPIOs in this chip. Any entry in the array
* may be NULL if there is no alias for the GPIO, however the
* array must be @ngpio entries long. A name can include a single printk
* format specifier for an unsigned int. It is substituted by the actual
* number of the gpio.
+ * @can_sleep: flag must be set iff get()/set() methods sleep, as they
+ * must while accessing GPIO expander chips over I2C or SPI
+ * @exported: flags if the gpiochip is exported for use from sysfs. Private.
*
* A gpio_chip can help platforms abstract various sources of GPIOs so
* they can all be accessed through a common programing interface.
@@ -91,8 +92,8 @@
u16 ngpio;
struct gpio_desc *desc;
const char *const *names;
- unsigned can_sleep:1;
- unsigned exported:1;
+ bool can_sleep;
+ bool exported;
#if defined(CONFIG_OF_GPIO)
/*
@@ -136,59 +137,50 @@
};
/**
- * Lookup table for associating GPIOs to specific devices and functions using
- * platform data.
+ * struct gpiod_lookup - lookup table
+ * @chip_label: name of the chip the GPIO belongs to
+ * @chip_hwnum: hardware number (i.e. relative to the chip) of the GPIO
+ * @con_id: name of the GPIO from the device's point of view
+ * @idx: index of the GPIO in case several GPIOs share the same name
+ * @flags: mask of GPIO_* values
+ *
+ * gpiod_lookup is a lookup table for associating GPIOs to specific devices and
+ * functions using platform data.
*/
struct gpiod_lookup {
- struct list_head list;
- /*
- * name of the chip the GPIO belongs to
- */
const char *chip_label;
- /*
- * hardware number (i.e. relative to the chip) of the GPIO
- */
u16 chip_hwnum;
- /*
- * name of device that can claim this GPIO
- */
- const char *dev_id;
- /*
- * name of the GPIO from the device's point of view
- */
const char *con_id;
- /*
- * index of the GPIO in case several GPIOs share the same name
- */
unsigned int idx;
- /*
- * mask of GPIO_* values
- */
enum gpio_lookup_flags flags;
};
+struct gpiod_lookup_table {
+ struct list_head list;
+ const char *dev_id;
+ struct gpiod_lookup table[];
+};
+
/*
* Simple definition of a single GPIO under a con_id
*/
-#define GPIO_LOOKUP(_chip_label, _chip_hwnum, _dev_id, _con_id, _flags) \
- GPIO_LOOKUP_IDX(_chip_label, _chip_hwnum, _dev_id, _con_id, 0, _flags)
+#define GPIO_LOOKUP(_chip_label, _chip_hwnum, _con_id, _flags) \
+ GPIO_LOOKUP_IDX(_chip_label, _chip_hwnum, _con_id, 0, _flags)
/*
* Use this macro if you need to have several GPIOs under the same con_id.
* Each GPIO needs to use a different index and can be accessed using
* gpiod_get_index()
*/
-#define GPIO_LOOKUP_IDX(_chip_label, _chip_hwnum, _dev_id, _con_id, _idx, \
- _flags) \
+#define GPIO_LOOKUP_IDX(_chip_label, _chip_hwnum, _con_id, _idx, _flags) \
{ \
.chip_label = _chip_label, \
.chip_hwnum = _chip_hwnum, \
- .dev_id = _dev_id, \
.con_id = _con_id, \
.idx = _idx, \
.flags = _flags, \
}
-void gpiod_add_table(struct gpiod_lookup *table, size_t size);
+void gpiod_add_lookup_table(struct gpiod_lookup_table *table);
#endif
diff --git a/arch/arm/mach-lpc32xx/include/mach/gpio-lpc32xx.h b/include/linux/platform_data/gpio-lpc32xx.h
similarity index 100%
rename from arch/arm/mach-lpc32xx/include/mach/gpio-lpc32xx.h
rename to include/linux/platform_data/gpio-lpc32xx.h
diff --git a/include/linux/spi/74x164.h b/include/linux/spi/74x164.h
deleted file mode 100644
index 0aa6acc..0000000
--- a/include/linux/spi/74x164.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef LINUX_SPI_74X164_H
-#define LINUX_SPI_74X164_H
-
-struct gen_74x164_chip_platform_data {
- /* number assigned to the first GPIO */
- unsigned base;
-};
-
-#endif
diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c
index 5620d3c..bd2a5b9 100644
--- a/net/rfkill/rfkill-gpio.c
+++ b/net/rfkill/rfkill-gpio.c
@@ -25,15 +25,15 @@
#include <linux/clk.h>
#include <linux/slab.h>
#include <linux/acpi.h>
-#include <linux/acpi_gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/rfkill-gpio.h>
struct rfkill_gpio_data {
const char *name;
enum rfkill_type type;
- int reset_gpio;
- int shutdown_gpio;
+ struct gpio_desc *reset_gpio;
+ struct gpio_desc *shutdown_gpio;
struct rfkill *rfkill_dev;
char *reset_name;
@@ -48,19 +48,15 @@
struct rfkill_gpio_data *rfkill = data;
if (blocked) {
- if (gpio_is_valid(rfkill->shutdown_gpio))
- gpio_set_value(rfkill->shutdown_gpio, 0);
- if (gpio_is_valid(rfkill->reset_gpio))
- gpio_set_value(rfkill->reset_gpio, 0);
+ gpiod_set_value(rfkill->shutdown_gpio, 0);
+ gpiod_set_value(rfkill->reset_gpio, 0);
if (!IS_ERR(rfkill->clk) && rfkill->clk_enabled)
clk_disable(rfkill->clk);
} else {
if (!IS_ERR(rfkill->clk) && !rfkill->clk_enabled)
clk_enable(rfkill->clk);
- if (gpio_is_valid(rfkill->reset_gpio))
- gpio_set_value(rfkill->reset_gpio, 1);
- if (gpio_is_valid(rfkill->shutdown_gpio))
- gpio_set_value(rfkill->shutdown_gpio, 1);
+ gpiod_set_value(rfkill->reset_gpio, 1);
+ gpiod_set_value(rfkill->shutdown_gpio, 1);
}
rfkill->clk_enabled = blocked;
@@ -83,8 +79,6 @@
rfkill->name = dev_name(dev);
rfkill->type = (unsigned)id->driver_data;
- rfkill->reset_gpio = acpi_get_gpio_by_index(dev, 0, NULL);
- rfkill->shutdown_gpio = acpi_get_gpio_by_index(dev, 1, NULL);
return 0;
}
@@ -94,8 +88,9 @@
struct rfkill_gpio_platform_data *pdata = pdev->dev.platform_data;
struct rfkill_gpio_data *rfkill;
const char *clk_name = NULL;
- int ret = 0;
- int len = 0;
+ struct gpio_desc *gpio;
+ int ret;
+ int len;
rfkill = devm_kzalloc(&pdev->dev, sizeof(*rfkill), GFP_KERNEL);
if (!rfkill)
@@ -109,28 +104,10 @@
clk_name = pdata->power_clk_name;
rfkill->name = pdata->name;
rfkill->type = pdata->type;
- rfkill->reset_gpio = pdata->reset_gpio;
- rfkill->shutdown_gpio = pdata->shutdown_gpio;
} else {
return -ENODEV;
}
- /* make sure at-least one of the GPIO is defined and that
- * a name is specified for this instance */
- if ((!gpio_is_valid(rfkill->reset_gpio) &&
- !gpio_is_valid(rfkill->shutdown_gpio)) || !rfkill->name) {
- pr_warn("%s: invalid platform data\n", __func__);
- return -EINVAL;
- }
-
- if (pdata && pdata->gpio_runtime_setup) {
- ret = pdata->gpio_runtime_setup(pdev);
- if (ret) {
- pr_warn("%s: can't set up gpio\n", __func__);
- return ret;
- }
- }
-
len = strlen(rfkill->name);
rfkill->reset_name = devm_kzalloc(&pdev->dev, len + 7, GFP_KERNEL);
if (!rfkill->reset_name)
@@ -145,20 +122,34 @@
rfkill->clk = devm_clk_get(&pdev->dev, clk_name);
- if (gpio_is_valid(rfkill->reset_gpio)) {
- ret = devm_gpio_request_one(&pdev->dev, rfkill->reset_gpio,
- 0, rfkill->reset_name);
- if (ret) {
- pr_warn("%s: failed to get reset gpio.\n", __func__);
+ gpio = devm_gpiod_get_index(&pdev->dev, rfkill->reset_name, 0);
+ if (!IS_ERR(gpio)) {
+ ret = gpiod_direction_output(gpio, 0);
+ if (ret)
return ret;
- }
+ rfkill->reset_gpio = gpio;
}
- if (gpio_is_valid(rfkill->shutdown_gpio)) {
- ret = devm_gpio_request_one(&pdev->dev, rfkill->shutdown_gpio,
- 0, rfkill->shutdown_name);
+ gpio = devm_gpiod_get_index(&pdev->dev, rfkill->shutdown_name, 1);
+ if (!IS_ERR(gpio)) {
+ ret = gpiod_direction_output(gpio, 0);
+ if (ret)
+ return ret;
+ rfkill->shutdown_gpio = gpio;
+ }
+
+ /* Make sure at-least one of the GPIO is defined and that
+ * a name is specified for this instance
+ */
+ if ((!rfkill->reset_gpio && !rfkill->shutdown_gpio) || !rfkill->name) {
+ dev_err(&pdev->dev, "invalid platform data\n");
+ return -EINVAL;
+ }
+
+ if (pdata && pdata->gpio_runtime_setup) {
+ ret = pdata->gpio_runtime_setup(pdev);
if (ret) {
- pr_warn("%s: failed to get shutdown gpio.\n", __func__);
+ dev_err(&pdev->dev, "can't set up gpio\n");
return ret;
}
}