ixp4xx-i2c-gpio
Migrate all ixp4xx devices to the bitbanging I2C bus driver utilizing
the arch-neutral GPIO API (linux/i2c-gpio.h).
Tested by the nslu2-linux and openwrt projects in public firmware releases.
Signed-off-by: Michael-Luke Jones <mlj28@cam.ac.uk>
Acked-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/arch/arm/mach-ixp4xx/avila-setup.c b/arch/arm/mach-ixp4xx/avila-setup.c
index d59b8dc..e38f45f 100644
--- a/arch/arm/mach-ixp4xx/avila-setup.c
+++ b/arch/arm/mach-ixp4xx/avila-setup.c
@@ -18,6 +18,7 @@
#include <linux/tty.h>
#include <linux/serial_8250.h>
#include <linux/slab.h>
+#include <linux/i2c-gpio.h>
#include <asm/types.h>
#include <asm/setup.h>
@@ -47,18 +48,17 @@
.resource = &avila_flash_resource,
};
-static struct ixp4xx_i2c_pins avila_i2c_gpio_pins = {
+static struct i2c_gpio_platform_data avila_i2c_gpio_data = {
.sda_pin = AVILA_SDA_PIN,
.scl_pin = AVILA_SCL_PIN,
};
-static struct platform_device avila_i2c_controller = {
- .name = "IXP4XX-I2C",
+static struct platform_device avila_i2c_gpio = {
+ .name = "i2c-gpio",
.id = 0,
- .dev = {
- .platform_data = &avila_i2c_gpio_pins,
+ .dev = {
+ .platform_data = &avila_i2c_gpio_data,
},
- .num_resources = 0
};
static struct resource avila_uart_resources[] = {
@@ -133,7 +133,7 @@
};
static struct platform_device *avila_devices[] __initdata = {
- &avila_i2c_controller,
+ &avila_i2c_gpio,
&avila_flash,
&avila_uart
};
diff --git a/arch/arm/mach-ixp4xx/dsmg600-setup.c b/arch/arm/mach-ixp4xx/dsmg600-setup.c
index 1e75e10..c473d40 100644
--- a/arch/arm/mach-ixp4xx/dsmg600-setup.c
+++ b/arch/arm/mach-ixp4xx/dsmg600-setup.c
@@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
+#include <linux/i2c-gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -37,15 +38,17 @@
.resource = &dsmg600_flash_resource,
};
-static struct ixp4xx_i2c_pins dsmg600_i2c_gpio_pins = {
+static struct i2c_gpio_platform_data dsmg600_i2c_gpio_data = {
.sda_pin = DSMG600_SDA_PIN,
.scl_pin = DSMG600_SCL_PIN,
};
-static struct platform_device dsmg600_i2c_controller = {
- .name = "IXP4XX-I2C",
+static struct platform_device dsmg600_i2c_gpio = {
+ .name = "i2c-gpio",
.id = 0,
- .dev.platform_data = &dsmg600_i2c_gpio_pins,
+ .dev = {
+ .platform_data = &dsmg600_i2c_gpio_data,
+ },
};
#ifdef CONFIG_LEDS_CLASS
@@ -116,7 +119,7 @@
};
static struct platform_device *dsmg600_devices[] __initdata = {
- &dsmg600_i2c_controller,
+ &dsmg600_i2c_gpio,
&dsmg600_flash,
};
diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
index d5008d8..e89070d 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-setup.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -15,6 +15,7 @@
#include <linux/tty.h>
#include <linux/serial_8250.h>
#include <linux/slab.h>
+#include <linux/i2c-gpio.h>
#include <linux/io.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
@@ -120,18 +121,17 @@
};
#endif /* CONFIG_MTD_NAND_PLATFORM */
-static struct ixp4xx_i2c_pins ixdp425_i2c_gpio_pins = {
+static struct i2c_gpio_platform_data ixdp425_i2c_gpio_data = {
.sda_pin = IXDP425_SDA_PIN,
.scl_pin = IXDP425_SCL_PIN,
};
-static struct platform_device ixdp425_i2c_controller = {
- .name = "IXP4XX-I2C",
+static struct platform_device ixdp425_i2c_gpio = {
+ .name = "i2c-gpio",
.id = 0,
- .dev = {
- .platform_data = &ixdp425_i2c_gpio_pins,
+ .dev = {
+ .platform_data = &ixdp425_i2c_gpio_data,
},
- .num_resources = 0
};
static struct resource ixdp425_uart_resources[] = {
@@ -178,7 +178,7 @@
};
static struct platform_device *ixdp425_devices[] __initdata = {
- &ixdp425_i2c_controller,
+ &ixdp425_i2c_gpio,
&ixdp425_flash,
#if defined(CONFIG_MTD_NAND_PLATFORM) || \
defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
index 78a1741..54d884f 100644
--- a/arch/arm/mach-ixp4xx/nas100d-setup.c
+++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
@@ -16,6 +16,7 @@
#include <linux/serial.h>
#include <linux/serial_8250.h>
#include <linux/leds.h>
+#include <linux/i2c-gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -68,16 +69,17 @@
};
#endif
-static struct ixp4xx_i2c_pins nas100d_i2c_gpio_pins = {
+static struct i2c_gpio_platform_data nas100d_i2c_gpio_data = {
.sda_pin = NAS100D_SDA_PIN,
.scl_pin = NAS100D_SCL_PIN,
};
-static struct platform_device nas100d_i2c_controller = {
- .name = "IXP4XX-I2C",
+static struct platform_device nas100d_i2c_gpio = {
+ .name = "i2c-gpio",
.id = 0,
- .dev.platform_data = &nas100d_i2c_gpio_pins,
- .num_resources = 0,
+ .dev = {
+ .platform_data = &nas100d_i2c_gpio_data,
+ },
};
static struct resource nas100d_uart_resources[] = {
@@ -124,7 +126,7 @@
};
static struct platform_device *nas100d_devices[] __initdata = {
- &nas100d_i2c_controller,
+ &nas100d_i2c_gpio,
&nas100d_flash,
#ifdef CONFIG_LEDS_IXP4XX
&nas100d_leds,
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c
index 9bf8ccb..77277d2 100644
--- a/arch/arm/mach-ixp4xx/nslu2-setup.c
+++ b/arch/arm/mach-ixp4xx/nslu2-setup.c
@@ -18,6 +18,7 @@
#include <linux/serial.h>
#include <linux/serial_8250.h>
#include <linux/leds.h>
+#include <linux/i2c-gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -41,7 +42,7 @@
.resource = &nslu2_flash_resource,
};
-static struct ixp4xx_i2c_pins nslu2_i2c_gpio_pins = {
+static struct i2c_gpio_platform_data nslu2_i2c_gpio_data = {
.sda_pin = NSLU2_SDA_PIN,
.scl_pin = NSLU2_SCL_PIN,
};
@@ -82,11 +83,12 @@
};
#endif
-static struct platform_device nslu2_i2c_controller = {
- .name = "IXP4XX-I2C",
+static struct platform_device nslu2_i2c_gpio = {
+ .name = "i2c-gpio",
.id = 0,
- .dev.platform_data = &nslu2_i2c_gpio_pins,
- .num_resources = 0,
+ .dev = {
+ .platform_data = &nslu2_i2c_gpio_data,
+ },
};
static struct platform_device nslu2_beeper = {
@@ -139,7 +141,7 @@
};
static struct platform_device *nslu2_devices[] __initdata = {
- &nslu2_i2c_controller,
+ &nslu2_i2c_gpio,
&nslu2_flash,
&nslu2_beeper,
#ifdef CONFIG_LEDS_IXP4XX