Merge branch 'synaptics-rmi4' into next
Merge updated Synaptics RMI4 support, including support for SMBus
controllers and flashing firmware.
diff --git a/Documentation/devicetree/bindings/input/adc-keys.txt b/Documentation/devicetree/bindings/input/adc-keys.txt
new file mode 100644
index 0000000..e551814
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/adc-keys.txt
@@ -0,0 +1,49 @@
+ADC attached resistor ladder buttons
+------------------------------------
+
+Required properties:
+ - compatible: "adc-keys"
+ - io-channels: Phandle to an ADC channel
+ - io-channel-names = "buttons";
+ - keyup-threshold-microvolt: Voltage at which all the keys are considered up.
+
+Optional properties:
+ - poll-interval: Poll interval time in milliseconds
+ - autorepeat: Boolean, Enable auto repeat feature of Linux input
+ subsystem.
+
+Each button (key) is represented as a sub-node of "adc-keys":
+
+Required subnode-properties:
+ - label: Descriptive name of the key.
+ - linux,code: Keycode to emit.
+ - press-threshold-microvolt: Voltage ADC input when this key is pressed.
+
+Example:
+
+#include <dt-bindings/input/input.h>
+
+ adc-keys {
+ compatible = "adc-keys";
+ io-channels = <&lradc 0>;
+ io-channel-names = "buttons";
+ keyup-threshold-microvolt = <2000000>;
+
+ button-up {
+ label = "Volume Up";
+ linux,code = <KEY_VOLUMEUP>;
+ press-threshold-microvolt = <1500000>;
+ };
+
+ button-down {
+ label = "Volume Down";
+ linux,code = <KEY_VOLUMEDOWN>;
+ press-threshold-microvolt = <1000000>;
+ };
+
+ button-enter {
+ label = "Enter";
+ linux,code = <KEY_ENTER>;
+ press-threshold-microvolt = <500000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/input/da9062-onkey.txt b/Documentation/devicetree/bindings/input/da9062-onkey.txt
index ab0e048..5f9fbc6 100644
--- a/Documentation/devicetree/bindings/input/da9062-onkey.txt
+++ b/Documentation/devicetree/bindings/input/da9062-onkey.txt
@@ -1,32 +1,47 @@
-* Dialog DA9062/63 OnKey Module
+* Dialog DA9061/62/63 OnKey Module
-This module is part of the DA9062/DA9063. For more details about entire
-chips see Documentation/devicetree/bindings/mfd/da9062.txt and
-Documentation/devicetree/bindings/mfd/da9063.txt
+This module is part of the DA9061/DA9062/DA9063. For more details about entire
+DA9062 and DA9061 chips see Documentation/devicetree/bindings/mfd/da9062.txt
+For DA9063 see Documentation/devicetree/bindings/mfd/da9063.txt
-This module provides KEY_POWER, KEY_SLEEP and events.
+This module provides the KEY_POWER event.
Required properties:
-- compatible: should be one of:
- dlg,da9062-onkey
- dlg,da9063-onkey
+- compatible: should be one of the following valid compatible string lines:
+ "dlg,da9061-onkey", "dlg,da9062-onkey"
+ "dlg,da9062-onkey"
+ "dlg,da9063-onkey"
Optional properties:
- - dlg,disable-key-power : Disable power-down using a long key-press. If this
+- dlg,disable-key-power : Disable power-down using a long key-press. If this
entry exists the OnKey driver will remove support for the KEY_POWER key
- press. If this entry does not exist then by default the key-press
- triggered power down is enabled and the OnKey will support both KEY_POWER
- and KEY_SLEEP.
+ press when triggered using a long press of the OnKey.
-Example:
+Example: DA9063
- pmic0: da9062@58 {
-
+ pmic0: da9063@58 {
onkey {
compatible = "dlg,da9063-onkey";
dlg,disable-key-power;
};
+ };
+Example: DA9062
+
+ pmic0: da9062@58 {
+ onkey {
+ compatible = "dlg,da9062-onkey";
+ dlg,disable-key-power;
+ };
+ };
+
+Example: DA9061 using a fall-back compatible for the DA9062 onkey driver
+
+ pmic0: da9061@58 {
+ onkey {
+ compatible = "dlg,da9061-onkey", "dlg,da9062-onkey";
+ dlg,disable-key-power;
+ };
};
diff --git a/Documentation/devicetree/bindings/input/gpio-decoder.txt b/Documentation/devicetree/bindings/input/gpio-decoder.txt
new file mode 100644
index 0000000..14a77fb
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/gpio-decoder.txt
@@ -0,0 +1,23 @@
+* GPIO Decoder DT bindings
+
+Required Properties:
+- compatible: should be "gpio-decoder"
+- gpios: a spec of gpios (at least two) to be decoded to a number with
+ first entry representing the MSB.
+
+Optional Properties:
+- decoder-max-value: Maximum possible value that can be reported by
+ the gpios.
+- linux,axis: the input subsystem axis to map to (ABS_X/ABS_Y).
+ Defaults to 0 (ABS_X).
+
+Example:
+ gpio-decoder0 {
+ compatible = "gpio-decoder";
+ gpios = <&pca9536 3 GPIO_ACTIVE_HIGH>,
+ <&pca9536 2 GPIO_ACTIVE_HIGH>,
+ <&pca9536 1 GPIO_ACTIVE_HIGH>,
+ <&pca9536 0 GPIO_ACTIVE_HIGH>;
+ linux,axis = <0>; /* ABS_X */
+ decoder-max-value = <9>;
+ };
diff --git a/Documentation/devicetree/bindings/input/gpio-keys-polled.txt b/Documentation/devicetree/bindings/input/gpio-keys-polled.txt
index 95d0fb1..4d9a371 100644
--- a/Documentation/devicetree/bindings/input/gpio-keys-polled.txt
+++ b/Documentation/devicetree/bindings/input/gpio-keys-polled.txt
@@ -34,11 +34,10 @@
gpio_keys_polled {
compatible = "gpio-keys-polled";
- #address-cells = <1>;
- #size-cells = <0>;
poll-interval = <100>;
autorepeat;
- button@21 {
+
+ button21 {
label = "GPIO Key UP";
linux,code = <103>;
gpios = <&gpio1 0 1>;
diff --git a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
index f99528d..6db2210 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
@@ -19,6 +19,7 @@
or: "edt,edt-ft5306"
or: "edt,edt-ft5406"
or: "edt,edt-ft5506"
+ or: "focaltech,ft6236"
- reg: I2C slave address of the chip (0x38)
- interrupt-parent: a phandle pointing to the interrupt controller
@@ -43,6 +44,13 @@
- offset: allows setting the edge compensation in the range from
0 to 31.
+ - touchscreen-size-x : See touchscreen.txt
+ - touchscreen-size-y : See touchscreen.txt
+ - touchscreen-fuzz-x : See touchscreen.txt
+ - touchscreen-fuzz-y : See touchscreen.txt
+ - touchscreen-inverted-x : See touchscreen.txt
+ - touchscreen-inverted-y : See touchscreen.txt
+ - touchscreen-swapped-x-y : See touchscreen.txt
Example:
polytouch: edt-ft5x06@38 {
diff --git a/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt b/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt
new file mode 100644
index 0000000..5a19f4c
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt
@@ -0,0 +1,27 @@
+* Elan eKTF2127 I2C touchscreen controller
+
+Required properties:
+ - compatible : "elan,ektf2127"
+ - reg : I2C slave address of the chip (0x40)
+ - interrupt-parent : a phandle pointing to the interrupt controller
+ serving the interrupt for this chip
+ - interrupts : interrupt specification for the ektf2127 interrupt
+ - power-gpios : GPIO specification for the pin connected to the
+ ektf2127's wake input. This needs to be driven high
+ to take ektf2127 out of it's low power state
+
+For additional optional properties see: touchscreen.txt
+
+Example:
+
+i2c@00000000 {
+ ektf2127: touchscreen@15 {
+ compatible = "elan,ektf2127";
+ reg = <0x15>;
+ interrupt-parent = <&pio>;
+ interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>
+ power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>;
+ touchscreen-inverted-x;
+ touchscreen-swapped-x-y;
+ };
+};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/focaltech-ft6236.txt b/Documentation/devicetree/bindings/input/touchscreen/focaltech-ft6236.txt
deleted file mode 100644
index 777521d..0000000
--- a/Documentation/devicetree/bindings/input/touchscreen/focaltech-ft6236.txt
+++ /dev/null
@@ -1,35 +0,0 @@
-* FocalTech FT6236 I2C touchscreen controller
-
-Required properties:
- - compatible : "focaltech,ft6236"
- - reg : I2C slave address of the chip (0x38)
- - interrupt-parent : a phandle pointing to the interrupt controller
- serving the interrupt for this chip
- - interrupts : interrupt specification for the touch controller
- interrupt
- - reset-gpios : GPIO specification for the RSTN input
- - touchscreen-size-x : horizontal resolution of touchscreen (in pixels)
- - touchscreen-size-y : vertical resolution of touchscreen (in pixels)
-
-Optional properties:
- - touchscreen-fuzz-x : horizontal noise value of the absolute input
- device (in pixels)
- - touchscreen-fuzz-y : vertical noise value of the absolute input
- device (in pixels)
- - touchscreen-inverted-x : X axis is inverted (boolean)
- - touchscreen-inverted-y : Y axis is inverted (boolean)
- - touchscreen-swapped-x-y: X and Y axis are swapped (boolean)
- Swapping is done after inverting the axis
-
-Example:
-
- ft6x06@38 {
- compatible = "focaltech,ft6236";
- reg = <0x38>;
- interrupt-parent = <&gpio>;
- interrupts = <23 2>;
- touchscreen-size-x = <320>;
- touchscreen-size-y = <480>;
- touchscreen-inverted-x;
- touchscreen-swapped-x-y;
- };
diff --git a/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt b/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt
index 853dff9..d4927c2 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt
@@ -17,6 +17,8 @@
This value depends on the touch screen.
- pre-charge-time: the touch screen need some time to precharge.
This value depends on the touch screen.
+- touchscreen-average-samples: Number of data samples which are averaged for
+ each read. Valid values are 1, 4, 8, 16 and 32.
Example:
tsc: tsc@02040000 {
@@ -32,5 +34,6 @@
xnur-gpio = <&gpio1 3 GPIO_ACTIVE_LOW>;
measure-delay-time = <0xfff>;
pre-charge-time = <0xffff>;
+ touchscreen-average-samples = <32>;
status = "okay";
};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt b/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt
new file mode 100644
index 0000000..7b8944c
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt
@@ -0,0 +1,21 @@
+* MELFAS MIP4 Touchscreen
+
+Required properties:
+- compatible: must be "melfas,mip4_ts"
+- reg: I2C slave address of the chip (0x48 or 0x34)
+- interrupt-parent: interrupt controller to which the chip is connected
+- interrupts: interrupt to which the chip is connected
+
+Optional properties:
+- ce-gpios: GPIO connected to the CE (chip enable) pin of the chip
+
+Example:
+ i2c@00000000 {
+ touchscreen: melfas_mip4@48 {
+ compatible = "melfas,mip4_ts";
+ reg = <0x48>;
+ interrupt-parent = <&gpio>;
+ interrupts = <0 IRQ_TYPE_EDGE_FALLING>;
+ ce-gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt b/Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt
index 820fee4..ce85ee5 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt
@@ -18,6 +18,8 @@
- touchscreen-inverted-y : See touchscreen.txt
- touchscreen-swapped-x-y : See touchscreen.txt
- silead,max-fingers : maximum number of fingers the touchscreen can detect
+- vddio-supply : regulator phandle for controller VDDIO
+- avdd-supply : regulator phandle for controller AVDD
Example:
diff --git a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt
index bccaa4e..537643e 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt
@@ -14,6 +14,9 @@
- touchscreen-fuzz-pressure : pressure noise value of the absolute input
device (arbitrary range dependent on the
controller)
+ - touchscreen-average-samples : Number of data samples which are averaged
+ for each read (valid values dependent on the
+ controller)
- touchscreen-inverted-x : X axis is inverted (boolean)
- touchscreen-inverted-y : Y axis is inverted (boolean)
- touchscreen-swapped-x-y : X and Y axis are swapped (boolean)
diff --git a/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt b/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt
index e30e0b9..3e5b979 100644
--- a/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt
+++ b/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt
@@ -1,13 +1,24 @@
-Texas Instruments TPS65218 power button
+Texas Instruments TPS65217 and TPS65218 power button
+
+This module is part of the TPS65217/TPS65218. For more details about the whole
+TPS65217 chip see Documentation/devicetree/bindings/regulator/tps65217.txt.
This driver provides a simple power button event via an Interrupt.
Required properties:
-- compatible: should be "ti,tps65218-pwrbutton"
+- compatible: should be "ti,tps65217-pwrbutton" or "ti,tps65218-pwrbutton"
+
+Required properties for TPS65218:
- interrupts: should be one of the following
- <3 IRQ_TYPE_EDGE_BOTH>: For controllers compatible with tps65218
-Example:
+Examples:
+
+&tps {
+ tps65217-pwrbutton {
+ compatible = "ti,tps65217-pwrbutton";
+ };
+};
&tps {
power-button {
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 1992aa9..4e3d7d4 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -156,6 +156,7 @@
meas Measurement Specialties
mediatek MediaTek Inc.
melexis Melexis N.V.
+melfas MELFAS Inc.
merrii Merrii Technology Co., Ltd.
micrel Micrel Inc.
microchip Microchip Technology Inc.
diff --git a/Documentation/input/alps.txt b/Documentation/input/alps.txt
index 1fec113..8d1341c 100644
--- a/Documentation/input/alps.txt
+++ b/Documentation/input/alps.txt
@@ -319,3 +319,60 @@
otherwise byte 0 bit 4 must be set and byte 0/4/5 are
in NEW fmt
F: Number of fingers - 3, 0 means 3 fingers, 1 means 4 ...
+
+
+ALPS Absolute Mode - Protocol Version 8
+---------------------------------------
+
+Spoken by SS4 (73 03 14) and SS5 (73 03 28) hardware.
+
+The packet type is given by the APD field, bits 4-5 of byte 3.
+
+Touchpad packet (APD = 0x2):
+
+ b7 b6 b5 b4 b3 b2 b1 b0
+ byte 0: SWM SWR SWL 1 1 0 0 X7
+ byte 1: 0 X6 X5 X4 X3 X2 X1 X0
+ byte 2: 0 Y6 Y5 Y4 Y3 Y2 Y1 Y0
+ byte 3: 0 T&P 1 0 1 0 0 Y7
+ byte 4: 0 Z6 Z5 Z4 Z3 Z2 Z1 Z0
+ byte 5: 0 0 0 0 0 0 0 0
+
+SWM, SWR, SWL: Middle, Right, and Left button states
+
+Touchpad 1 Finger packet (APD = 0x0):
+
+ b7 b6 b5 b4 b3 b2 b1 b0
+ byte 0: SWM SWR SWL 1 1 X2 X1 X0
+ byte 1: X9 X8 X7 1 X6 X5 X4 X3
+ byte 2: 0 X11 X10 LFB Y3 Y2 Y1 Y0
+ byte 3: Y5 Y4 0 0 1 TAPF2 TAPF1 TAPF0
+ byte 4: Zv7 Y11 Y10 1 Y9 Y8 Y7 Y6
+ byte 5: Zv6 Zv5 Zv4 0 Zv3 Zv2 Zv1 Zv0
+
+TAPF: ???
+LFB: ???
+
+Touchpad 2 Finger packet (APD = 0x1):
+
+ b7 b6 b5 b4 b3 b2 b1 b0
+ byte 0: SWM SWR SWL 1 1 AX6 AX5 AX4
+ byte 1: AX11 AX10 AX9 AX8 AX7 AZ1 AY4 AZ0
+ byte 2: AY11 AY10 AY9 CONT AY8 AY7 AY6 AY5
+ byte 3: 0 0 0 1 1 BX6 BX5 BX4
+ byte 4: BX11 BX10 BX9 BX8 BX7 BZ1 BY4 BZ0
+ byte 5: BY11 BY10 BY9 0 BY8 BY7 BY5 BY5
+
+CONT: A 3-or-4 Finger packet is to follow
+
+Touchpad 3-or-4 Finger packet (APD = 0x3):
+
+ b7 b6 b5 b4 b3 b2 b1 b0
+ byte 0: SWM SWR SWL 1 1 AX6 AX5 AX4
+ byte 1: AX11 AX10 AX9 AX8 AX7 AZ1 AY4 AZ0
+ byte 2: AY11 AY10 AY9 OVF AY8 AY7 AY6 AY5
+ byte 3: 0 0 1 1 1 BX6 BX5 BX4
+ byte 4: BX11 BX10 BX9 BX8 BX7 BZ1 BY4 BZ0
+ byte 5: BY11 BY10 BY9 0 BY8 BY7 BY5 BY5
+
+OVF: 5th finger detected
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 7b550d4..b60c8ab 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1457,7 +1457,14 @@
i8042.nopnp [HW] Don't use ACPIPnP / PnPBIOS to discover KBD/AUX
controllers
i8042.notimeout [HW] Ignore timeout condition signalled by controller
- i8042.reset [HW] Reset the controller during init and cleanup
+ i8042.reset [HW] Reset the controller during init, cleanup and
+ suspend-to-ram transitions, only during s2r
+ transitions, or never reset
+ Format: { 1 | Y | y | 0 | N | n }
+ 1, Y, y: always reset controller
+ 0, N, n: don't ever reset controller
+ Default: only on s2r transitions on x86; most other
+ architectures force reset to be always executed
i8042.unlock [HW] Unlock (ignore) the keylock
i8042.kbdreset [HW] Reset device connected to KBD port
diff --git a/MAINTAINERS b/MAINTAINERS
index 0560911..c5d8428 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7658,6 +7658,13 @@
F: drivers/scsi/megaraid.*
F: drivers/scsi/megaraid/
+MELFAS MIP4 TOUCHSCREEN DRIVER
+M: Sangwon Jee <jeesw@melfas.com>
+W: http://www.melfas.com
+S: Supported
+F: drivers/input/touchscreen/melfas_mip4.c
+F: Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt
+
MELLANOX ETHERNET DRIVER (mlx4_en)
M: Tariq Toukan <tariqt@mellanox.com>
L: netdev@vger.kernel.org
diff --git a/arch/arm/mach-sa1100/jornada720.c b/arch/arm/mach-sa1100/jornada720.c
index c0b1f5b..0a2ca9b 100644
--- a/arch/arm/mach-sa1100/jornada720.c
+++ b/arch/arm/mach-sa1100/jornada720.c
@@ -17,6 +17,7 @@
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/delay.h>
+#include <linux/gpio/machine.h>
#include <linux/platform_data/sa11x0-serial.h>
#include <linux/platform_device.h>
#include <linux/ioport.h>
@@ -217,9 +218,22 @@
.id = -1,
};
+static struct resource jornada_kbd_resources[] = {
+ DEFINE_RES_IRQ(IRQ_GPIO0),
+};
+
static struct platform_device jornada_kbd_device = {
.name = "jornada720_kbd",
.id = -1,
+ .num_resources = ARRAY_SIZE(jornada_kbd_resources),
+ .resource = jornada_kbd_resources,
+};
+
+static struct gpiod_lookup_table jornada_ts_gpiod_table = {
+ .dev_id = "jornada_ts",
+ .table = {
+ GPIO_LOOKUP("gpio", 9, "penup", GPIO_ACTIVE_HIGH),
+ },
};
static struct platform_device jornada_ts_device = {
@@ -250,6 +264,8 @@
GPSR = GPIO_GPIO20; /* restart gpio20 */
udelay(20); /* give it some time to restart */
+ gpiod_add_lookup_table(&jornada_ts_gpiod_table);
+
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
}
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 83af17a..6d94996 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -134,6 +134,7 @@
{ 0x045e, 0x02d1, "Microsoft X-Box One pad", 0, XTYPE_XBOXONE },
{ 0x045e, 0x02dd, "Microsoft X-Box One pad (Firmware 2015)", 0, XTYPE_XBOXONE },
{ 0x045e, 0x02e3, "Microsoft X-Box One Elite pad", 0, XTYPE_XBOXONE },
+ { 0x045e, 0x02ea, "Microsoft X-Box One S pad", 0, XTYPE_XBOXONE },
{ 0x045e, 0x0291, "Xbox 360 Wireless Receiver (XBOX)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
{ 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
{ 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", 0, XTYPE_XBOX },
@@ -1044,9 +1045,9 @@
packet->data[7] = 0x00;
packet->data[8] = strong / 512; /* left actuator */
packet->data[9] = weak / 512; /* right actuator */
- packet->data[10] = 0xFF;
- packet->data[11] = 0x00;
- packet->data[12] = 0x00;
+ packet->data[10] = 0xFF; /* on period */
+ packet->data[11] = 0x00; /* off period */
+ packet->data[12] = 0xFF; /* repeat count */
packet->len = 13;
packet->pending = true;
break;
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 509608c..cbd75cf 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -12,6 +12,21 @@
if INPUT_KEYBOARD
+config KEYBOARD_ADC
+ tristate "ADC Ladder Buttons"
+ depends on IIO
+ select INPUT_POLLDEV
+ help
+ This driver implements support for buttons connected
+ to an ADC using a resistor ladder.
+
+ Say Y here if your device has such buttons connected to an ADC. Your
+ board-specific setup logic must also provide a configuration data
+ for mapping voltages to buttons.
+
+ To compile this driver as a module, choose M here: the
+ module will be called adc_keys.
+
config KEYBOARD_ADP5520
tristate "Keypad Support for ADP5520 PMIC"
depends on PMIC_ADP5520
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index 1d416dd..d9f4cfc 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -4,6 +4,7 @@
# Each configuration option enables a list of files.
+obj-$(CONFIG_KEYBOARD_ADC) += adc-keys.o
obj-$(CONFIG_KEYBOARD_ADP5520) += adp5520-keys.o
obj-$(CONFIG_KEYBOARD_ADP5588) += adp5588-keys.o
obj-$(CONFIG_KEYBOARD_ADP5589) += adp5589-keys.o
diff --git a/drivers/input/keyboard/adc-keys.c b/drivers/input/keyboard/adc-keys.c
new file mode 100644
index 0000000..f8cf2cc
--- /dev/null
+++ b/drivers/input/keyboard/adc-keys.c
@@ -0,0 +1,210 @@
+/*
+ * Input driver for resistor ladder connected on ADC
+ *
+ * Copyright (c) 2016 Alexandre Belloni
+ *
+ * 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.
+ */
+
+#include <linux/err.h>
+#include <linux/iio/consumer.h>
+#include <linux/iio/types.h>
+#include <linux/input.h>
+#include <linux/input-polldev.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/slab.h>
+
+struct adc_keys_button {
+ u32 voltage;
+ u32 keycode;
+};
+
+struct adc_keys_state {
+ struct iio_channel *channel;
+ u32 num_keys;
+ u32 last_key;
+ u32 keyup_voltage;
+ const struct adc_keys_button *map;
+};
+
+static void adc_keys_poll(struct input_polled_dev *dev)
+{
+ struct adc_keys_state *st = dev->private;
+ int i, value, ret;
+ u32 diff, closest = 0xffffffff;
+ int keycode = 0;
+
+ ret = iio_read_channel_processed(st->channel, &value);
+ if (unlikely(ret < 0)) {
+ /* Forcibly release key if any was pressed */
+ value = st->keyup_voltage;
+ } else {
+ for (i = 0; i < st->num_keys; i++) {
+ diff = abs(st->map[i].voltage - value);
+ if (diff < closest) {
+ closest = diff;
+ keycode = st->map[i].keycode;
+ }
+ }
+ }
+
+ if (abs(st->keyup_voltage - value) < closest)
+ keycode = 0;
+
+ if (st->last_key && st->last_key != keycode)
+ input_report_key(dev->input, st->last_key, 0);
+
+ if (keycode)
+ input_report_key(dev->input, keycode, 1);
+
+ input_sync(dev->input);
+ st->last_key = keycode;
+}
+
+static int adc_keys_load_keymap(struct device *dev, struct adc_keys_state *st)
+{
+ struct adc_keys_button *map;
+ struct fwnode_handle *child;
+ int i;
+
+ st->num_keys = device_get_child_node_count(dev);
+ if (st->num_keys == 0) {
+ dev_err(dev, "keymap is missing\n");
+ return -EINVAL;
+ }
+
+ map = devm_kmalloc_array(dev, st->num_keys, sizeof(*map), GFP_KERNEL);
+ if (!map)
+ return -ENOMEM;
+
+ i = 0;
+ device_for_each_child_node(dev, child) {
+ if (fwnode_property_read_u32(child, "press-threshold-microvolt",
+ &map[i].voltage)) {
+ dev_err(dev, "Key with invalid or missing voltage\n");
+ fwnode_handle_put(child);
+ return -EINVAL;
+ }
+ map[i].voltage /= 1000;
+
+ if (fwnode_property_read_u32(child, "linux,code",
+ &map[i].keycode)) {
+ dev_err(dev, "Key with invalid or missing linux,code\n");
+ fwnode_handle_put(child);
+ return -EINVAL;
+ }
+
+ i++;
+ }
+
+ st->map = map;
+ return 0;
+}
+
+static int adc_keys_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct adc_keys_state *st;
+ struct input_polled_dev *poll_dev;
+ struct input_dev *input;
+ enum iio_chan_type type;
+ int i, value;
+ int error;
+
+ st = devm_kzalloc(dev, sizeof(*st), GFP_KERNEL);
+ if (!st)
+ return -ENOMEM;
+
+ st->channel = devm_iio_channel_get(dev, "buttons");
+ if (IS_ERR(st->channel))
+ return PTR_ERR(st->channel);
+
+ if (!st->channel->indio_dev)
+ return -ENXIO;
+
+ error = iio_get_channel_type(st->channel, &type);
+ if (error < 0)
+ return error;
+
+ if (type != IIO_VOLTAGE) {
+ dev_err(dev, "Incompatible channel type %d\n", type);
+ return -EINVAL;
+ }
+
+ if (device_property_read_u32(dev, "keyup-threshold-microvolt",
+ &st->keyup_voltage)) {
+ dev_err(dev, "Invalid or missing keyup voltage\n");
+ return -EINVAL;
+ }
+ st->keyup_voltage /= 1000;
+
+ error = adc_keys_load_keymap(dev, st);
+ if (error)
+ return error;
+
+ platform_set_drvdata(pdev, st);
+
+ poll_dev = devm_input_allocate_polled_device(dev);
+ if (!poll_dev) {
+ dev_err(dev, "failed to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ if (!device_property_read_u32(dev, "poll-interval", &value))
+ poll_dev->poll_interval = value;
+
+ poll_dev->poll = adc_keys_poll;
+ poll_dev->private = st;
+
+ input = poll_dev->input;
+
+ input->name = pdev->name;
+ input->phys = "adc-keys/input0";
+
+ input->id.bustype = BUS_HOST;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0001;
+ input->id.version = 0x0100;
+
+ __set_bit(EV_KEY, input->evbit);
+ for (i = 0; i < st->num_keys; i++)
+ __set_bit(st->map[i].keycode, input->keybit);
+
+ if (device_property_read_bool(dev, "autorepeat"))
+ __set_bit(EV_REP, input->evbit);
+
+ error = input_register_polled_device(poll_dev);
+ if (error) {
+ dev_err(dev, "Unable to register input device: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id adc_keys_of_match[] = {
+ { .compatible = "adc-keys", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, adc_keys_of_match);
+#endif
+
+static struct platform_driver __refdata adc_keys_driver = {
+ .driver = {
+ .name = "adc_keys",
+ .of_match_table = of_match_ptr(adc_keys_of_match),
+ },
+ .probe = adc_keys_probe,
+};
+module_platform_driver(adc_keys_driver);
+
+MODULE_AUTHOR("Alexandre Belloni <alexandre.belloni@free-electrons.com>");
+MODULE_DESCRIPTION("Input driver for resistor ladder connected on ADC");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index 2909365..582462d 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -26,15 +26,15 @@
#include <linux/gpio_keys.h>
#include <linux/workqueue.h>
#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/of.h>
-#include <linux/of_platform.h>
-#include <linux/of_gpio.h>
#include <linux/of_irq.h>
#include <linux/spinlock.h>
struct gpio_button_data {
const struct gpio_keys_button *button;
struct input_dev *input;
+ struct gpio_desc *gpiod;
struct timer_list release_timer;
unsigned int release_delay; /* in msecs, for IRQ-only buttons */
@@ -140,7 +140,7 @@
*/
disable_irq(bdata->irq);
- if (gpio_is_valid(bdata->button->gpio))
+ if (bdata->gpiod)
cancel_delayed_work_sync(&bdata->work);
else
del_timer_sync(&bdata->release_timer);
@@ -358,19 +358,20 @@
const struct gpio_keys_button *button = bdata->button;
struct input_dev *input = bdata->input;
unsigned int type = button->type ?: EV_KEY;
- int state = gpio_get_value_cansleep(button->gpio);
+ int state;
+ state = gpiod_get_value_cansleep(bdata->gpiod);
if (state < 0) {
- dev_err(input->dev.parent, "failed to get gpio state\n");
+ dev_err(input->dev.parent,
+ "failed to get gpio state: %d\n", state);
return;
}
- state = (state ? 1 : 0) ^ button->active_low;
if (type == EV_ABS) {
if (state)
input_event(input, type, button->code, button->value);
} else {
- input_event(input, type, button->code, !!state);
+ input_event(input, type, button->code, state);
}
input_sync(input);
}
@@ -456,7 +457,7 @@
{
struct gpio_button_data *bdata = data;
- if (gpio_is_valid(bdata->button->gpio))
+ if (bdata->gpiod)
cancel_delayed_work_sync(&bdata->work);
else
del_timer_sync(&bdata->release_timer);
@@ -465,7 +466,8 @@
static int gpio_keys_setup_key(struct platform_device *pdev,
struct input_dev *input,
struct gpio_button_data *bdata,
- const struct gpio_keys_button *button)
+ const struct gpio_keys_button *button,
+ struct fwnode_handle *child)
{
const char *desc = button->desc ? button->desc : "gpio_keys";
struct device *dev = &pdev->dev;
@@ -478,18 +480,56 @@
bdata->button = button;
spin_lock_init(&bdata->lock);
- if (gpio_is_valid(button->gpio)) {
+ if (child) {
+ bdata->gpiod = devm_get_gpiod_from_child(dev, NULL, child);
+ if (IS_ERR(bdata->gpiod)) {
+ error = PTR_ERR(bdata->gpiod);
+ if (error == -ENOENT) {
+ /*
+ * GPIO is optional, we may be dealing with
+ * purely interrupt-driven setup.
+ */
+ bdata->gpiod = NULL;
+ } else {
+ if (error != -EPROBE_DEFER)
+ dev_err(dev, "failed to get gpio: %d\n",
+ error);
+ return error;
+ }
+ } else {
+ error = gpiod_direction_input(bdata->gpiod);
+ if (error) {
+ dev_err(dev, "Failed to configure GPIO %d as input: %d\n",
+ desc_to_gpio(bdata->gpiod), error);
+ return error;
+ }
+ }
+ } else if (gpio_is_valid(button->gpio)) {
+ /*
+ * Legacy GPIO number, so request the GPIO here and
+ * convert it to descriptor.
+ */
+ unsigned flags = GPIOF_IN;
- error = devm_gpio_request_one(&pdev->dev, button->gpio,
- GPIOF_IN, desc);
+ if (button->active_low)
+ flags |= GPIOF_ACTIVE_LOW;
+
+ error = devm_gpio_request_one(&pdev->dev, button->gpio, flags,
+ desc);
if (error < 0) {
dev_err(dev, "Failed to request GPIO %d, error %d\n",
button->gpio, error);
return error;
}
+ bdata->gpiod = gpio_to_desc(button->gpio);
+ if (!bdata->gpiod)
+ return -EINVAL;
+ }
+
+ if (bdata->gpiod) {
if (button->debounce_interval) {
- error = gpio_set_debounce(button->gpio,
+ error = gpiod_set_debounce(bdata->gpiod,
button->debounce_interval * 1000);
/* use timer if gpiolib doesn't provide debounce */
if (error < 0)
@@ -500,7 +540,7 @@
if (button->irq) {
bdata->irq = button->irq;
} else {
- irq = gpio_to_irq(button->gpio);
+ irq = gpiod_to_irq(bdata->gpiod);
if (irq < 0) {
error = irq;
dev_err(dev,
@@ -518,9 +558,10 @@
} else {
if (!button->irq) {
- dev_err(dev, "No IRQ specified\n");
+ dev_err(dev, "Found button without gpio or irq\n");
return -EINVAL;
}
+
bdata->irq = button->irq;
if (button->type && button->type != EV_KEY) {
@@ -575,7 +616,7 @@
for (i = 0; i < ddata->pdata->nbuttons; i++) {
struct gpio_button_data *bdata = &ddata->data[i];
- if (gpio_is_valid(bdata->button->gpio))
+ if (bdata->gpiod)
gpio_keys_gpio_report_event(bdata);
}
input_sync(input);
@@ -612,25 +653,18 @@
* Handlers for alternative sources of platform_data
*/
-#ifdef CONFIG_OF
/*
- * Translate OpenFirmware node properties into platform_data
+ * Translate properties into platform_data
*/
static struct gpio_keys_platform_data *
gpio_keys_get_devtree_pdata(struct device *dev)
{
- struct device_node *node, *pp;
struct gpio_keys_platform_data *pdata;
struct gpio_keys_button *button;
- int error;
+ struct fwnode_handle *child;
int nbuttons;
- int i;
- node = dev->of_node;
- if (!node)
- return ERR_PTR(-ENODEV);
-
- nbuttons = of_get_available_child_count(node);
+ nbuttons = device_get_child_node_count(dev);
if (nbuttons == 0)
return ERR_PTR(-ENODEV);
@@ -640,64 +674,47 @@
if (!pdata)
return ERR_PTR(-ENOMEM);
- pdata->buttons = (struct gpio_keys_button *)(pdata + 1);
+ button = (struct gpio_keys_button *)(pdata + 1);
+
+ pdata->buttons = button;
pdata->nbuttons = nbuttons;
- pdata->rep = !!of_get_property(node, "autorepeat", NULL);
+ pdata->rep = device_property_read_bool(dev, "autorepeat");
- of_property_read_string(node, "label", &pdata->name);
+ device_property_read_string(dev, "label", &pdata->name);
- i = 0;
- for_each_available_child_of_node(node, pp) {
- enum of_gpio_flags flags;
+ device_for_each_child_node(dev, child) {
+ if (is_of_node(child))
+ button->irq =
+ irq_of_parse_and_map(to_of_node(child), 0);
- button = &pdata->buttons[i++];
-
- button->gpio = of_get_gpio_flags(pp, 0, &flags);
- if (button->gpio < 0) {
- error = button->gpio;
- if (error != -ENOENT) {
- if (error != -EPROBE_DEFER)
- dev_err(dev,
- "Failed to get gpio flags, error: %d\n",
- error);
- return ERR_PTR(error);
- }
- } else {
- button->active_low = flags & OF_GPIO_ACTIVE_LOW;
- }
-
- button->irq = irq_of_parse_and_map(pp, 0);
-
- if (!gpio_is_valid(button->gpio) && !button->irq) {
- dev_err(dev, "Found button without gpios or irqs\n");
+ if (fwnode_property_read_u32(child, "linux,code",
+ &button->code)) {
+ dev_err(dev, "Button without keycode\n");
+ fwnode_handle_put(child);
return ERR_PTR(-EINVAL);
}
- if (of_property_read_u32(pp, "linux,code", &button->code)) {
- dev_err(dev, "Button without keycode: 0x%x\n",
- button->gpio);
- return ERR_PTR(-EINVAL);
- }
+ fwnode_property_read_string(child, "label", &button->desc);
- button->desc = of_get_property(pp, "label", NULL);
-
- if (of_property_read_u32(pp, "linux,input-type", &button->type))
+ if (fwnode_property_read_u32(child, "linux,input-type",
+ &button->type))
button->type = EV_KEY;
- button->wakeup = of_property_read_bool(pp, "wakeup-source") ||
- /* legacy name */
- of_property_read_bool(pp, "gpio-key,wakeup");
+ button->wakeup =
+ fwnode_property_read_bool(child, "wakeup-source") ||
+ /* legacy name */
+ fwnode_property_read_bool(child, "gpio-key,wakeup");
- button->can_disable = !!of_get_property(pp, "linux,can-disable", NULL);
+ button->can_disable =
+ fwnode_property_read_bool(child, "linux,can-disable");
- if (of_property_read_u32(pp, "debounce-interval",
+ if (fwnode_property_read_u32(child, "debounce-interval",
&button->debounce_interval))
button->debounce_interval = 5;
- }
- if (pdata->nbuttons == 0)
- return ERR_PTR(-EINVAL);
+ button++;
+ }
return pdata;
}
@@ -708,20 +725,11 @@
};
MODULE_DEVICE_TABLE(of, gpio_keys_of_match);
-#else
-
-static inline struct gpio_keys_platform_data *
-gpio_keys_get_devtree_pdata(struct device *dev)
-{
- return ERR_PTR(-ENODEV);
-}
-
-#endif
-
static int gpio_keys_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
const struct gpio_keys_platform_data *pdata = dev_get_platdata(dev);
+ struct fwnode_handle *child = NULL;
struct gpio_keys_drvdata *ddata;
struct input_dev *input;
size_t size;
@@ -774,14 +782,28 @@
const struct gpio_keys_button *button = &pdata->buttons[i];
struct gpio_button_data *bdata = &ddata->data[i];
- error = gpio_keys_setup_key(pdev, input, bdata, button);
- if (error)
+ if (!dev_get_platdata(dev)) {
+ child = device_get_next_child_node(&pdev->dev, child);
+ if (!child) {
+ dev_err(&pdev->dev,
+ "missing child device node for entry %d\n",
+ i);
+ return -EINVAL;
+ }
+ }
+
+ error = gpio_keys_setup_key(pdev, input, bdata, button, child);
+ if (error) {
+ fwnode_handle_put(child);
return error;
+ }
if (button->wakeup)
wakeup = 1;
}
+ fwnode_handle_put(child);
+
error = sysfs_create_group(&pdev->dev.kobj, &gpio_keys_attr_group);
if (error) {
dev_err(dev, "Unable to export keys/switches, error: %d\n",
@@ -814,8 +836,7 @@
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-static int gpio_keys_suspend(struct device *dev)
+static int __maybe_unused gpio_keys_suspend(struct device *dev)
{
struct gpio_keys_drvdata *ddata = dev_get_drvdata(dev);
struct input_dev *input = ddata->input;
@@ -837,7 +858,7 @@
return 0;
}
-static int gpio_keys_resume(struct device *dev)
+static int __maybe_unused gpio_keys_resume(struct device *dev)
{
struct gpio_keys_drvdata *ddata = dev_get_drvdata(dev);
struct input_dev *input = ddata->input;
@@ -863,7 +884,6 @@
gpio_keys_report_state(ddata);
return 0;
}
-#endif
static SIMPLE_DEV_PM_OPS(gpio_keys_pm_ops, gpio_keys_suspend, gpio_keys_resume);
@@ -873,7 +893,7 @@
.driver = {
.name = "gpio-keys",
.pm = &gpio_keys_pm_ops,
- .of_match_table = of_match_ptr(gpio_keys_of_match),
+ .of_match_table = gpio_keys_of_match,
}
};
diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
index 62bdb1d..bed4f20 100644
--- a/drivers/input/keyboard/gpio_keys_polled.c
+++ b/drivers/input/keyboard/gpio_keys_polled.c
@@ -30,10 +30,10 @@
#define DRV_NAME "gpio-keys-polled"
struct gpio_keys_button_data {
+ struct gpio_desc *gpiod;
int last_state;
int count;
int threshold;
- int can_sleep;
};
struct gpio_keys_polled_dev {
@@ -46,7 +46,7 @@
};
static void gpio_keys_button_event(struct input_polled_dev *dev,
- struct gpio_keys_button *button,
+ const struct gpio_keys_button *button,
int state)
{
struct gpio_keys_polled_dev *bdev = dev->private;
@@ -70,21 +70,22 @@
}
static void gpio_keys_polled_check_state(struct input_polled_dev *dev,
- struct gpio_keys_button *button,
+ const struct gpio_keys_button *button,
struct gpio_keys_button_data *bdata)
{
int state;
- if (bdata->can_sleep)
- state = !!gpiod_get_value_cansleep(button->gpiod);
- else
- state = !!gpiod_get_value(button->gpiod);
+ state = gpiod_get_value_cansleep(bdata->gpiod);
+ if (state < 0) {
+ dev_err(dev->input->dev.parent,
+ "failed to get gpio state: %d\n", state);
+ } else {
+ gpio_keys_button_event(dev, button, state);
- gpio_keys_button_event(dev, button, state);
-
- if (state != bdata->last_state) {
- bdata->count = 0;
- bdata->last_state = state;
+ if (state != bdata->last_state) {
+ bdata->count = 0;
+ bdata->last_state = state;
+ }
}
}
@@ -142,48 +143,35 @@
pdata->disable(bdev->dev);
}
-static struct gpio_keys_platform_data *gpio_keys_polled_get_devtree_pdata(struct device *dev)
+static struct gpio_keys_platform_data *
+gpio_keys_polled_get_devtree_pdata(struct device *dev)
{
struct gpio_keys_platform_data *pdata;
struct gpio_keys_button *button;
struct fwnode_handle *child;
- int error;
int nbuttons;
nbuttons = device_get_child_node_count(dev);
if (nbuttons == 0)
- return NULL;
+ return ERR_PTR(-EINVAL);
pdata = devm_kzalloc(dev, sizeof(*pdata) + nbuttons * sizeof(*button),
GFP_KERNEL);
if (!pdata)
return ERR_PTR(-ENOMEM);
- pdata->buttons = (struct gpio_keys_button *)(pdata + 1);
+ button = (struct gpio_keys_button *)(pdata + 1);
+
+ pdata->buttons = button;
+ pdata->nbuttons = nbuttons;
pdata->rep = device_property_present(dev, "autorepeat");
device_property_read_u32(dev, "poll-interval", &pdata->poll_interval);
device_for_each_child_node(dev, child) {
- struct gpio_desc *desc;
-
- desc = devm_get_gpiod_from_child(dev, NULL, child);
- if (IS_ERR(desc)) {
- error = PTR_ERR(desc);
- if (error != -EPROBE_DEFER)
- dev_err(dev,
- "Failed to get gpio flags, error: %d\n",
- error);
- fwnode_handle_put(child);
- return ERR_PTR(error);
- }
-
- button = &pdata->buttons[pdata->nbuttons++];
- button->gpiod = desc;
-
- if (fwnode_property_read_u32(child, "linux,code", &button->code)) {
- dev_err(dev, "Button without keycode: %d\n",
- pdata->nbuttons - 1);
+ if (fwnode_property_read_u32(child, "linux,code",
+ &button->code)) {
+ dev_err(dev, "button without keycode\n");
fwnode_handle_put(child);
return ERR_PTR(-EINVAL);
}
@@ -206,10 +194,9 @@
if (fwnode_property_read_u32(child, "debounce-interval",
&button->debounce_interval))
button->debounce_interval = 5;
- }
- if (pdata->nbuttons == 0)
- return ERR_PTR(-EINVAL);
+ button++;
+ }
return pdata;
}
@@ -220,7 +207,7 @@
int i, min = 0, max = 0;
for (i = 0; i < pdata->nbuttons; i++) {
- struct gpio_keys_button *button = &pdata->buttons[i];
+ const struct gpio_keys_button *button = &pdata->buttons[i];
if (button->type != EV_ABS || button->code != code)
continue;
@@ -230,6 +217,7 @@
if (button->value > max)
max = button->value;
}
+
input_set_abs_params(input, code, min, max, 0, 0);
}
@@ -242,6 +230,7 @@
static int gpio_keys_polled_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
+ struct fwnode_handle *child = NULL;
const struct gpio_keys_platform_data *pdata = dev_get_platdata(dev);
struct gpio_keys_polled_dev *bdev;
struct input_polled_dev *poll_dev;
@@ -254,10 +243,6 @@
pdata = gpio_keys_polled_get_devtree_pdata(dev);
if (IS_ERR(pdata))
return PTR_ERR(pdata);
- if (!pdata) {
- dev_err(dev, "missing platform data\n");
- return -EINVAL;
- }
}
if (!pdata->poll_interval) {
@@ -300,20 +285,48 @@
__set_bit(EV_REP, input->evbit);
for (i = 0; i < pdata->nbuttons; i++) {
- struct gpio_keys_button *button = &pdata->buttons[i];
+ const struct gpio_keys_button *button = &pdata->buttons[i];
struct gpio_keys_button_data *bdata = &bdev->data[i];
unsigned int type = button->type ?: EV_KEY;
if (button->wakeup) {
dev_err(dev, DRV_NAME " does not support wakeup\n");
+ fwnode_handle_put(child);
return -EINVAL;
}
- /*
- * Legacy GPIO number so request the GPIO here and
- * convert it to descriptor.
- */
- if (!button->gpiod && gpio_is_valid(button->gpio)) {
+ if (!dev_get_platdata(dev)) {
+ /* No legacy static platform data */
+ child = device_get_next_child_node(dev, child);
+ if (!child) {
+ dev_err(dev, "missing child device node\n");
+ return -EINVAL;
+ }
+
+ bdata->gpiod = devm_get_gpiod_from_child(dev, NULL,
+ child);
+ if (IS_ERR(bdata->gpiod)) {
+ error = PTR_ERR(bdata->gpiod);
+ if (error != -EPROBE_DEFER)
+ dev_err(dev,
+ "failed to get gpio: %d\n",
+ error);
+ fwnode_handle_put(child);
+ return error;
+ }
+
+ error = gpiod_direction_input(bdata->gpiod);
+ if (error) {
+ dev_err(dev, "Failed to configure GPIO %d as input: %d\n",
+ desc_to_gpio(bdata->gpiod), error);
+ fwnode_handle_put(child);
+ return error;
+ }
+ } else if (gpio_is_valid(button->gpio)) {
+ /*
+ * Legacy GPIO number so request the GPIO here and
+ * convert it to descriptor.
+ */
unsigned flags = GPIOF_IN;
if (button->active_low)
@@ -322,18 +335,21 @@
error = devm_gpio_request_one(&pdev->dev, button->gpio,
flags, button->desc ? : DRV_NAME);
if (error) {
- dev_err(dev, "unable to claim gpio %u, err=%d\n",
+ dev_err(dev,
+ "unable to claim gpio %u, err=%d\n",
button->gpio, error);
return error;
}
- button->gpiod = gpio_to_desc(button->gpio);
+ bdata->gpiod = gpio_to_desc(button->gpio);
+ if (!bdata->gpiod) {
+ dev_err(dev,
+ "unable to convert gpio %u to descriptor\n",
+ button->gpio);
+ return -EINVAL;
+ }
}
- if (IS_ERR(button->gpiod))
- return PTR_ERR(button->gpiod);
-
- bdata->can_sleep = gpiod_cansleep(button->gpiod);
bdata->last_state = -1;
bdata->threshold = DIV_ROUND_UP(button->debounce_interval,
pdata->poll_interval);
@@ -344,6 +360,8 @@
button->code);
}
+ fwnode_handle_put(child);
+
bdev->poll_dev = poll_dev;
bdev->dev = dev;
bdev->pdata = pdata;
diff --git a/drivers/input/keyboard/jornada720_kbd.c b/drivers/input/keyboard/jornada720_kbd.c
index 421d9c5..1277c39 100644
--- a/drivers/input/keyboard/jornada720_kbd.c
+++ b/drivers/input/keyboard/jornada720_kbd.c
@@ -25,8 +25,6 @@
#include <linux/slab.h>
#include <mach/jornada720.h>
-#include <mach/hardware.h>
-#include <mach/irqs.h>
MODULE_AUTHOR("Kristoffer Ericson <Kristoffer.Ericson@gmail.com>");
MODULE_DESCRIPTION("HP Jornada 710/720/728 keyboard driver");
@@ -66,10 +64,8 @@
jornada_ssp_start();
if (jornada_ssp_inout(GETSCANKEYCODE) != TXDUMMY) {
- printk(KERN_DEBUG
- "jornada720_kbd: "
- "GetKeycode command failed with ETIMEDOUT, "
- "flushed bus\n");
+ dev_dbg(&pdev->dev,
+ "GetKeycode command failed with ETIMEDOUT, flushed bus\n");
} else {
/* How many keycodes are waiting for us? */
count = jornada_ssp_byte(TXDUMMY);
@@ -97,14 +93,16 @@
{
struct jornadakbd *jornadakbd;
struct input_dev *input_dev;
- int i, err;
+ int i, err, irq;
- jornadakbd = kzalloc(sizeof(struct jornadakbd), GFP_KERNEL);
- input_dev = input_allocate_device();
- if (!jornadakbd || !input_dev) {
- err = -ENOMEM;
- goto fail1;
- }
+ irq = platform_get_irq(pdev, 0);
+ if (irq <= 0)
+ return irq < 0 ? irq : -EINVAL;
+
+ jornadakbd = devm_kzalloc(&pdev->dev, sizeof(*jornadakbd), GFP_KERNEL);
+ input_dev = devm_input_allocate_device(&pdev->dev);
+ if (!jornadakbd || !input_dev)
+ return -ENOMEM;
platform_set_drvdata(pdev, jornadakbd);
@@ -127,40 +125,16 @@
input_set_capability(input_dev, EV_MSC, MSC_SCAN);
- err = request_irq(IRQ_GPIO0,
- jornada720_kbd_interrupt,
- IRQF_TRIGGER_FALLING,
- "jornadakbd", pdev);
+ err = devm_request_irq(&pdev->dev, irq, jornada720_kbd_interrupt,
+ IRQF_TRIGGER_FALLING, "jornadakbd", pdev);
if (err) {
- printk(KERN_INFO "jornadakbd720_kbd: Unable to grab IRQ\n");
- goto fail1;
+ dev_err(&pdev->dev, "unable to grab IRQ%d: %d\n", irq, err);
+ return err;
}
- err = input_register_device(jornadakbd->input);
- if (err)
- goto fail2;
-
- return 0;
-
- fail2: /* IRQ, DEVICE, MEMORY */
- free_irq(IRQ_GPIO0, pdev);
- fail1: /* DEVICE, MEMORY */
- input_free_device(input_dev);
- kfree(jornadakbd);
- return err;
+ return input_register_device(jornadakbd->input);
};
-static int jornada720_kbd_remove(struct platform_device *pdev)
-{
- struct jornadakbd *jornadakbd = platform_get_drvdata(pdev);
-
- free_irq(IRQ_GPIO0, pdev);
- input_unregister_device(jornadakbd->input);
- kfree(jornadakbd);
-
- return 0;
-}
-
/* work with hotplug and coldplug */
MODULE_ALIAS("platform:jornada720_kbd");
@@ -169,6 +143,5 @@
.name = "jornada720_kbd",
},
.probe = jornada720_kbd_probe,
- .remove = jornada720_kbd_remove,
};
module_platform_driver(jornada720_kbd_driver);
diff --git a/drivers/input/keyboard/lpc32xx-keys.c b/drivers/input/keyboard/lpc32xx-keys.c
index 265d641..632523d 100644
--- a/drivers/input/keyboard/lpc32xx-keys.c
+++ b/drivers/input/keyboard/lpc32xx-keys.c
@@ -182,7 +182,7 @@
}
irq = platform_get_irq(pdev, 0);
- if (irq < 0 || irq >= NR_IRQS) {
+ if (irq < 0) {
dev_err(&pdev->dev, "failed to get platform irq\n");
return -EINVAL;
}
diff --git a/drivers/input/keyboard/pxa27x_keypad.c b/drivers/input/keyboard/pxa27x_keypad.c
index fcef5d1..e244433 100644
--- a/drivers/input/keyboard/pxa27x_keypad.c
+++ b/drivers/input/keyboard/pxa27x_keypad.c
@@ -316,7 +316,7 @@
error = of_property_read_u32(np, "marvell,debounce-interval",
&pdata->debounce_interval);
if (error) {
- dev_err(dev, "failed to parse debpunce-interval\n");
+ dev_err(dev, "failed to parse debounce-interval\n");
return error;
}
diff --git a/drivers/input/keyboard/snvs_pwrkey.c b/drivers/input/keyboard/snvs_pwrkey.c
index 24a9f59..7544888 100644
--- a/drivers/input/keyboard/snvs_pwrkey.c
+++ b/drivers/input/keyboard/snvs_pwrkey.c
@@ -168,7 +168,6 @@
error = input_register_device(input);
if (error < 0) {
dev_err(&pdev->dev, "failed to register input device\n");
- input_free_device(input);
return error;
}
diff --git a/drivers/input/keyboard/tca8418_keypad.c b/drivers/input/keyboard/tca8418_keypad.c
index 9002298..3048ef3 100644
--- a/drivers/input/keyboard/tca8418_keypad.c
+++ b/drivers/input/keyboard/tca8418_keypad.c
@@ -164,11 +164,18 @@
int error, col, row;
u8 reg, state, code;
- /* Initial read of the key event FIFO */
- error = tca8418_read_byte(keypad_data, REG_KEY_EVENT_A, ®);
+ do {
+ error = tca8418_read_byte(keypad_data, REG_KEY_EVENT_A, ®);
+ if (error < 0) {
+ dev_err(&keypad_data->client->dev,
+ "unable to read REG_KEY_EVENT_A\n");
+ break;
+ }
- /* Assume that key code 0 signifies empty FIFO */
- while (error >= 0 && reg > 0) {
+ /* Assume that key code 0 signifies empty FIFO */
+ if (reg <= 0)
+ break;
+
state = reg & KEY_EVENT_VALUE;
code = reg & KEY_EVENT_CODE;
@@ -184,11 +191,7 @@
/* Read for next loop */
error = tca8418_read_byte(keypad_data, REG_KEY_EVENT_A, ®);
- }
-
- if (error < 0)
- dev_err(&keypad_data->client->dev,
- "unable to read REG_KEY_EVENT_A\n");
+ } while (1);
input_sync(input);
}
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index efb0ca8..1ae4d96 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -292,6 +292,18 @@
To compile this driver as a module, choose M here: the
module will be called gpio_tilt_polled.
+config INPUT_GPIO_DECODER
+ tristate "Polled GPIO Decoder Input driver"
+ depends on GPIOLIB || COMPILE_TEST
+ select INPUT_POLLDEV
+ help
+ Say Y here if you want driver to read status of multiple GPIO
+ lines and report the encoded value as an absolute integer to
+ input subsystem.
+
+ To compile this driver as a module, choose M here: the module
+ will be called gpio_decoder.
+
config INPUT_IXP4XX_BEEPER
tristate "IXP4XX Beeper support"
depends on ARCH_IXP4XX
@@ -454,10 +466,10 @@
config INPUT_TPS65218_PWRBUTTON
tristate "TPS65218 Power button driver"
- depends on MFD_TPS65218
+ depends on (MFD_TPS65217 || MFD_TPS65218)
help
Say Y here if you want to enable power buttong reporting for
- the TPS65218 Power Management IC device.
+ TPS65217 and TPS65218 Power Management IC devices.
To compile this driver as a module, choose M here. The module will
be called tps65218-pwrbutton.
@@ -613,11 +625,12 @@
will be called da9055_onkey.
config INPUT_DA9063_ONKEY
- tristate "Dialog DA9062/63 OnKey"
+ tristate "Dialog DA9063/62/61 OnKey"
depends on MFD_DA9063 || MFD_DA9062
help
- Support the ONKEY of Dialog DA9063 and DA9062 Power Management ICs
- as an input device capable of reporting the power button status.
+ Support the ONKEY of Dialog DA9063, DA9062 and DA9061 Power
+ Management ICs as an input device capable of reporting the
+ power button status.
To compile this driver as a module, choose M here: the module
will be called da9063_onkey.
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 6a1e5e2..0b6d025 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -35,6 +35,7 @@
obj-$(CONFIG_INPUT_GP2A) += gp2ap002a00f.o
obj-$(CONFIG_INPUT_GPIO_BEEPER) += gpio-beeper.o
obj-$(CONFIG_INPUT_GPIO_TILT_POLLED) += gpio_tilt_polled.o
+obj-$(CONFIG_INPUT_GPIO_DECODER) += gpio_decoder.o
obj-$(CONFIG_INPUT_HISI_POWERKEY) += hisi_powerkey.o
obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
obj-$(CONFIG_INPUT_IMS_PCU) += ims-pcu.o
diff --git a/drivers/input/misc/bma150.c b/drivers/input/misc/bma150.c
index b0d4453..2124390 100644
--- a/drivers/input/misc/bma150.c
+++ b/drivers/input/misc/bma150.c
@@ -538,8 +538,13 @@
return -EIO;
}
+ /*
+ * Note if the IIO CONFIG_BMA180 driver is enabled we want to fail
+ * the probe for the bma180 as the iio driver is preferred.
+ */
chip_id = i2c_smbus_read_byte_data(client, BMA150_CHIP_ID_REG);
- if (chip_id != BMA150_CHIP_ID && chip_id != BMA180_CHIP_ID) {
+ if (chip_id != BMA150_CHIP_ID &&
+ (IS_ENABLED(CONFIG_BMA180) || chip_id != BMA180_CHIP_ID)) {
dev_err(&client->dev, "BMA150 chip id error: %d\n", chip_id);
return -EINVAL;
}
@@ -643,7 +648,9 @@
static const struct i2c_device_id bma150_id[] = {
{ "bma150", 0 },
+#if !IS_ENABLED(CONFIG_BMA180)
{ "bma180", 0 },
+#endif
{ "smb380", 0 },
{ "bma023", 0 },
{ }
diff --git a/drivers/input/misc/da9063_onkey.c b/drivers/input/misc/da9063_onkey.c
index bb863e0..b4ff1e8 100644
--- a/drivers/input/misc/da9063_onkey.c
+++ b/drivers/input/misc/da9063_onkey.c
@@ -1,5 +1,5 @@
/*
- * OnKey device driver for DA9063 and DA9062 PMICs
+ * OnKey device driver for DA9063, DA9062 and DA9061 PMICs
* Copyright (C) 2015 Dialog Semiconductor Ltd.
*
* This program is free software; you can redistribute it and/or
@@ -87,6 +87,7 @@
{ .compatible = "dlg,da9062-onkey", .data = &da9062_regs },
{ },
};
+MODULE_DEVICE_TABLE(of, da9063_compatible_reg_id_table);
static void da9063_poll_on(struct work_struct *work)
{
@@ -149,13 +150,13 @@
* and then send shutdown command
*/
dev_dbg(&onkey->input->dev,
- "Sending SHUTDOWN to DA9063 ...\n");
+ "Sending SHUTDOWN to PMIC ...\n");
error = regmap_write(onkey->regmap,
config->onkey_shutdown,
config->onkey_shutdown_mask);
if (error)
dev_err(&onkey->input->dev,
- "Cannot SHUTDOWN DA9063: %d\n",
+ "Cannot SHUTDOWN PMIC: %d\n",
error);
}
}
@@ -300,6 +301,6 @@
module_platform_driver(da9063_onkey_driver);
MODULE_AUTHOR("S Twiss <stwiss.opensource@diasemi.com>");
-MODULE_DESCRIPTION("Onkey device driver for Dialog DA9063 and DA9062");
+MODULE_DESCRIPTION("Onkey device driver for Dialog DA9063, DA9062 and DA9061");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" DA9063_DRVNAME_ONKEY);
diff --git a/drivers/input/misc/drv260x.c b/drivers/input/misc/drv260x.c
index 2adfd86c..0a2b865 100644
--- a/drivers/input/misc/drv260x.c
+++ b/drivers/input/misc/drv260x.c
@@ -18,8 +18,6 @@
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/module.h>
-#include <linux/of_gpio.h>
-#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/delay.h>
@@ -27,7 +25,6 @@
#include <linux/regulator/consumer.h>
#include <dt-bindings/input/ti-drv260x.h>
-#include <linux/platform_data/drv260x-pdata.h>
#define DRV260X_STATUS 0x0
#define DRV260X_MODE 0x1
@@ -468,90 +465,39 @@
.cache_type = REGCACHE_NONE,
};
-#ifdef CONFIG_OF
-static int drv260x_parse_dt(struct device *dev,
- struct drv260x_data *haptics)
-{
- struct device_node *np = dev->of_node;
- unsigned int voltage;
- int error;
-
- error = of_property_read_u32(np, "mode", &haptics->mode);
- if (error) {
- dev_err(dev, "%s: No entry for mode\n", __func__);
- return error;
- }
-
- error = of_property_read_u32(np, "library-sel", &haptics->library);
- if (error) {
- dev_err(dev, "%s: No entry for library selection\n",
- __func__);
- return error;
- }
-
- error = of_property_read_u32(np, "vib-rated-mv", &voltage);
- if (!error)
- haptics->rated_voltage = drv260x_calculate_voltage(voltage);
-
-
- error = of_property_read_u32(np, "vib-overdrive-mv", &voltage);
- if (!error)
- haptics->overdrive_voltage = drv260x_calculate_voltage(voltage);
-
- return 0;
-}
-#else
-static inline int drv260x_parse_dt(struct device *dev,
- struct drv260x_data *haptics)
-{
- dev_err(dev, "no platform data defined\n");
-
- return -EINVAL;
-}
-#endif
-
static int drv260x_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
- const struct drv260x_platform_data *pdata = dev_get_platdata(&client->dev);
+ struct device *dev = &client->dev;
struct drv260x_data *haptics;
+ u32 voltage;
int error;
- haptics = devm_kzalloc(&client->dev, sizeof(*haptics), GFP_KERNEL);
+ haptics = devm_kzalloc(dev, sizeof(*haptics), GFP_KERNEL);
if (!haptics)
return -ENOMEM;
- haptics->rated_voltage = DRV260X_DEF_OD_CLAMP_VOLT;
- haptics->rated_voltage = DRV260X_DEF_RATED_VOLT;
-
- if (pdata) {
- haptics->mode = pdata->mode;
- haptics->library = pdata->library_selection;
- if (pdata->vib_overdrive_voltage)
- haptics->overdrive_voltage = drv260x_calculate_voltage(pdata->vib_overdrive_voltage);
- if (pdata->vib_rated_voltage)
- haptics->rated_voltage = drv260x_calculate_voltage(pdata->vib_rated_voltage);
- } else if (client->dev.of_node) {
- error = drv260x_parse_dt(&client->dev, haptics);
- if (error)
- return error;
- } else {
- dev_err(&client->dev, "Platform data not set\n");
- return -ENODEV;
+ error = device_property_read_u32(dev, "mode", &haptics->mode);
+ if (error) {
+ dev_err(dev, "Can't fetch 'mode' property: %d\n", error);
+ return error;
}
-
if (haptics->mode < DRV260X_LRA_MODE ||
haptics->mode > DRV260X_ERM_MODE) {
- dev_err(&client->dev,
- "Vibrator mode is invalid: %i\n",
- haptics->mode);
+ dev_err(dev, "Vibrator mode is invalid: %i\n", haptics->mode);
return -EINVAL;
}
+ error = device_property_read_u32(dev, "library-sel", &haptics->library);
+ if (error) {
+ dev_err(dev, "Can't fetch 'library-sel' property: %d\n", error);
+ return error;
+ }
+
if (haptics->library < DRV260X_LIB_EMPTY ||
haptics->library > DRV260X_ERM_LIB_F) {
- dev_err(&client->dev,
+ dev_err(dev,
"Library value is invalid: %i\n", haptics->library);
return -EINVAL;
}
@@ -559,40 +505,44 @@
if (haptics->mode == DRV260X_LRA_MODE &&
haptics->library != DRV260X_LIB_EMPTY &&
haptics->library != DRV260X_LIB_LRA) {
- dev_err(&client->dev,
- "LRA Mode with ERM Library mismatch\n");
+ dev_err(dev, "LRA Mode with ERM Library mismatch\n");
return -EINVAL;
}
if (haptics->mode == DRV260X_ERM_MODE &&
(haptics->library == DRV260X_LIB_EMPTY ||
haptics->library == DRV260X_LIB_LRA)) {
- dev_err(&client->dev,
- "ERM Mode with LRA Library mismatch\n");
+ dev_err(dev, "ERM Mode with LRA Library mismatch\n");
return -EINVAL;
}
- haptics->regulator = devm_regulator_get(&client->dev, "vbat");
+ error = device_property_read_u32(dev, "vib-rated-mv", &voltage);
+ haptics->rated_voltage = error ? DRV260X_DEF_RATED_VOLT :
+ drv260x_calculate_voltage(voltage);
+
+ error = device_property_read_u32(dev, "vib-overdrive-mv", &voltage);
+ haptics->overdrive_voltage = error ? DRV260X_DEF_OD_CLAMP_VOLT :
+ drv260x_calculate_voltage(voltage);
+
+ haptics->regulator = devm_regulator_get(dev, "vbat");
if (IS_ERR(haptics->regulator)) {
error = PTR_ERR(haptics->regulator);
- dev_err(&client->dev,
- "unable to get regulator, error: %d\n", error);
+ dev_err(dev, "unable to get regulator, error: %d\n", error);
return error;
}
- haptics->enable_gpio = devm_gpiod_get_optional(&client->dev, "enable",
+ haptics->enable_gpio = devm_gpiod_get_optional(dev, "enable",
GPIOD_OUT_HIGH);
if (IS_ERR(haptics->enable_gpio))
return PTR_ERR(haptics->enable_gpio);
- haptics->input_dev = devm_input_allocate_device(&client->dev);
+ haptics->input_dev = devm_input_allocate_device(dev);
if (!haptics->input_dev) {
dev_err(&client->dev, "Failed to allocate input device\n");
return -ENOMEM;
}
haptics->input_dev->name = "drv260x:haptics";
- haptics->input_dev->dev.parent = client->dev.parent;
haptics->input_dev->close = drv260x_close;
input_set_drvdata(haptics->input_dev, haptics);
input_set_capability(haptics->input_dev, EV_FF, FF_RUMBLE);
@@ -600,8 +550,7 @@
error = input_ff_create_memless(haptics->input_dev, NULL,
drv260x_haptics_play);
if (error) {
- dev_err(&client->dev, "input_ff_create() failed: %d\n",
- error);
+ dev_err(dev, "input_ff_create() failed: %d\n", error);
return error;
}
@@ -613,21 +562,19 @@
haptics->regmap = devm_regmap_init_i2c(client, &drv260x_regmap_config);
if (IS_ERR(haptics->regmap)) {
error = PTR_ERR(haptics->regmap);
- dev_err(&client->dev, "Failed to allocate register map: %d\n",
- error);
+ dev_err(dev, "Failed to allocate register map: %d\n", error);
return error;
}
error = drv260x_init(haptics);
if (error) {
- dev_err(&client->dev, "Device init failed: %d\n", error);
+ dev_err(dev, "Device init failed: %d\n", error);
return error;
}
error = input_register_device(haptics->input_dev);
if (error) {
- dev_err(&client->dev, "couldn't register input device: %d\n",
- error);
+ dev_err(dev, "couldn't register input device: %d\n", error);
return error;
}
diff --git a/drivers/input/misc/drv2665.c b/drivers/input/misc/drv2665.c
index ef9bc12..dcb6d8e 100644
--- a/drivers/input/misc/drv2665.c
+++ b/drivers/input/misc/drv2665.c
@@ -125,8 +125,8 @@
cancel_work_sync(&haptics->work);
- error = regmap_update_bits(haptics->regmap,
- DRV2665_CTRL_2, DRV2665_STANDBY, 1);
+ error = regmap_update_bits(haptics->regmap, DRV2665_CTRL_2,
+ DRV2665_STANDBY, DRV2665_STANDBY);
if (error)
dev_err(&haptics->client->dev,
"Failed to enter standby mode: %d\n", error);
@@ -240,7 +240,7 @@
if (haptics->input_dev->users) {
ret = regmap_update_bits(haptics->regmap, DRV2665_CTRL_2,
- DRV2665_STANDBY, 1);
+ DRV2665_STANDBY, DRV2665_STANDBY);
if (ret) {
dev_err(dev, "Failed to set standby mode\n");
regulator_disable(haptics->regulator);
diff --git a/drivers/input/misc/drv2667.c b/drivers/input/misc/drv2667.c
index d5ba748..2849bb6 100644
--- a/drivers/input/misc/drv2667.c
+++ b/drivers/input/misc/drv2667.c
@@ -256,7 +256,7 @@
cancel_work_sync(&haptics->work);
error = regmap_update_bits(haptics->regmap, DRV2667_CTRL_2,
- DRV2667_STANDBY, 1);
+ DRV2667_STANDBY, DRV2667_STANDBY);
if (error)
dev_err(&haptics->client->dev,
"Failed to enter standby mode: %d\n", error);
@@ -415,7 +415,7 @@
if (haptics->input_dev->users) {
ret = regmap_update_bits(haptics->regmap, DRV2667_CTRL_2,
- DRV2667_STANDBY, 1);
+ DRV2667_STANDBY, DRV2667_STANDBY);
if (ret) {
dev_err(dev, "Failed to set standby mode\n");
regulator_disable(haptics->regulator);
diff --git a/drivers/input/misc/gpio_decoder.c b/drivers/input/misc/gpio_decoder.c
new file mode 100644
index 0000000..ca7e0ba
--- /dev/null
+++ b/drivers/input/misc/gpio_decoder.c
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * 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 version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * A generic driver to read multiple gpio lines and translate the
+ * encoded numeric value into an input event.
+ */
+
+#include <linux/device.h>
+#include <linux/gpio/consumer.h>
+#include <linux/input.h>
+#include <linux/input-polldev.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+
+struct gpio_decoder {
+ struct input_polled_dev *poll_dev;
+ struct gpio_descs *input_gpios;
+ struct device *dev;
+ u32 axis;
+ u32 last_stable;
+};
+
+static int gpio_decoder_get_gpios_state(struct gpio_decoder *decoder)
+{
+ struct gpio_descs *gpios = decoder->input_gpios;
+ unsigned int ret = 0;
+ int i, val;
+
+ for (i = 0; i < gpios->ndescs; i++) {
+ val = gpiod_get_value_cansleep(gpios->desc[i]);
+ if (val < 0) {
+ dev_err(decoder->dev,
+ "Error reading gpio %d: %d\n",
+ desc_to_gpio(gpios->desc[i]), val);
+ return val;
+ }
+
+ val = !!val;
+ ret = (ret << 1) | val;
+ }
+
+ return ret;
+}
+
+static void gpio_decoder_poll_gpios(struct input_polled_dev *poll_dev)
+{
+ struct gpio_decoder *decoder = poll_dev->private;
+ int state;
+
+ state = gpio_decoder_get_gpios_state(decoder);
+ if (state >= 0 && state != decoder->last_stable) {
+ input_report_abs(poll_dev->input, decoder->axis, state);
+ input_sync(poll_dev->input);
+ decoder->last_stable = state;
+ }
+}
+
+static int gpio_decoder_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct gpio_decoder *decoder;
+ struct input_polled_dev *poll_dev;
+ u32 max;
+ int err;
+
+ decoder = devm_kzalloc(dev, sizeof(struct gpio_decoder), GFP_KERNEL);
+ if (!decoder)
+ return -ENOMEM;
+
+ device_property_read_u32(dev, "linux,axis", &decoder->axis);
+ decoder->input_gpios = devm_gpiod_get_array(dev, NULL, GPIOD_IN);
+ if (IS_ERR(decoder->input_gpios)) {
+ dev_err(dev, "unable to acquire input gpios\n");
+ return PTR_ERR(decoder->input_gpios);
+ }
+ if (decoder->input_gpios->ndescs < 2) {
+ dev_err(dev, "not enough gpios found\n");
+ return -EINVAL;
+ }
+
+ if (device_property_read_u32(dev, "decoder-max-value", &max))
+ max = (1U << decoder->input_gpios->ndescs) - 1;
+
+ decoder->dev = dev;
+ poll_dev = devm_input_allocate_polled_device(decoder->dev);
+ if (!poll_dev)
+ return -ENOMEM;
+
+ poll_dev->private = decoder;
+ poll_dev->poll = gpio_decoder_poll_gpios;
+ decoder->poll_dev = poll_dev;
+
+ poll_dev->input->name = pdev->name;
+ poll_dev->input->id.bustype = BUS_HOST;
+ input_set_abs_params(poll_dev->input, decoder->axis, 0, max, 0, 0);
+
+ err = input_register_polled_device(poll_dev);
+ if (err) {
+ dev_err(dev, "failed to register polled device\n");
+ return err;
+ }
+ platform_set_drvdata(pdev, decoder);
+
+ return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id gpio_decoder_of_match[] = {
+ { .compatible = "gpio-decoder", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, gpio_decoder_of_match);
+#endif
+
+static struct platform_driver gpio_decoder_driver = {
+ .probe = gpio_decoder_probe,
+ .driver = {
+ .name = "gpio-decoder",
+ .of_match_table = of_match_ptr(gpio_decoder_of_match),
+ }
+};
+module_platform_driver(gpio_decoder_driver);
+
+MODULE_DESCRIPTION("GPIO decoder input driver");
+MODULE_AUTHOR("Vignesh R <vigneshr@ti.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/misc/max77693-haptic.c b/drivers/input/misc/max77693-haptic.c
index 29ddeb7..46b0f48 100644
--- a/drivers/input/misc/max77693-haptic.c
+++ b/drivers/input/misc/max77693-haptic.c
@@ -3,7 +3,7 @@
*
* Copyright (C) 2014,2015 Samsung Electronics
* Jaewon Kim <jaewon02.kim@samsung.com>
- * Krzysztof Kozlowski <k.kozlowski@samsung.com>
+ * Krzysztof Kozlowski <krzk@kernel.org>
*
* This program is not provided / owned by Maxim Integrated Products.
*
@@ -426,7 +426,7 @@
module_platform_driver(max77693_haptic_driver);
MODULE_AUTHOR("Jaewon Kim <jaewon02.kim@samsung.com>");
-MODULE_AUTHOR("Krzysztof Kozlowski <k.kozlowski@samsung.com>");
+MODULE_AUTHOR("Krzysztof Kozlowski <krzk@kernel.org>");
MODULE_DESCRIPTION("MAXIM 77693/77843 Haptic driver");
MODULE_ALIAS("platform:max77693-haptic");
MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/soc_button_array.c b/drivers/input/misc/soc_button_array.c
index c14b827..908b510 100644
--- a/drivers/input/misc/soc_button_array.c
+++ b/drivers/input/misc/soc_button_array.c
@@ -17,6 +17,7 @@
#include <linux/acpi.h>
#include <linux/gpio/consumer.h>
#include <linux/gpio_keys.h>
+#include <linux/gpio.h>
#include <linux/platform_device.h>
/*
@@ -92,7 +93,7 @@
continue;
gpio = soc_button_lookup_gpio(&pdev->dev, info->acpi_index);
- if (gpio < 0)
+ if (!gpio_is_valid(gpio))
continue;
gpio_keys[n_buttons].type = info->event_type;
@@ -166,6 +167,11 @@
button_info = (struct soc_button_info *)id->driver_data;
+ if (gpiod_count(&pdev->dev, KBUILD_MODNAME) <= 0) {
+ dev_dbg(&pdev->dev, "no GPIO attached, ignoring...\n");
+ return -ENODEV;
+ }
+
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
diff --git a/drivers/input/misc/tps65218-pwrbutton.c b/drivers/input/misc/tps65218-pwrbutton.c
index a39b626..3273217 100644
--- a/drivers/input/misc/tps65218-pwrbutton.c
+++ b/drivers/input/misc/tps65218-pwrbutton.c
@@ -1,8 +1,9 @@
/*
- * Texas Instruments' TPS65218 Power Button Input Driver
+ * Texas Instruments' TPS65217 and TPS65218 Power Button Input Driver
*
* Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
* Author: Felipe Balbi <balbi@ti.com>
+ * Author: Marcin Niestroj <m.niestroj@grinn-global.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
@@ -18,31 +19,61 @@
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
+#include <linux/mfd/tps65217.h>
#include <linux/mfd/tps65218.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
+#include <linux/regmap.h>
#include <linux/slab.h>
-struct tps65218_pwrbutton {
- struct device *dev;
- struct tps65218 *tps;
- struct input_dev *idev;
+struct tps6521x_data {
+ unsigned int reg_status;
+ unsigned int pb_mask;
+ const char *name;
};
-static irqreturn_t tps65218_pwr_irq(int irq, void *_pwr)
+static const struct tps6521x_data tps65217_data = {
+ .reg_status = TPS65217_REG_STATUS,
+ .pb_mask = TPS65217_STATUS_PB,
+ .name = "tps65217_pwrbutton",
+};
+
+static const struct tps6521x_data tps65218_data = {
+ .reg_status = TPS65218_REG_STATUS,
+ .pb_mask = TPS65218_STATUS_PB_STATE,
+ .name = "tps65218_pwrbutton",
+};
+
+struct tps6521x_pwrbutton {
+ struct device *dev;
+ struct regmap *regmap;
+ struct input_dev *idev;
+ const struct tps6521x_data *data;
+ char phys[32];
+};
+
+static const struct of_device_id of_tps6521x_pb_match[] = {
+ { .compatible = "ti,tps65217-pwrbutton", .data = &tps65217_data },
+ { .compatible = "ti,tps65218-pwrbutton", .data = &tps65218_data },
+ { },
+};
+MODULE_DEVICE_TABLE(of, of_tps6521x_pb_match);
+
+static irqreturn_t tps6521x_pb_irq(int irq, void *_pwr)
{
- struct tps65218_pwrbutton *pwr = _pwr;
+ struct tps6521x_pwrbutton *pwr = _pwr;
+ const struct tps6521x_data *tps_data = pwr->data;
unsigned int reg;
int error;
- error = tps65218_reg_read(pwr->tps, TPS65218_REG_STATUS, ®);
+ error = regmap_read(pwr->regmap, tps_data->reg_status, ®);
if (error) {
dev_err(pwr->dev, "can't read register: %d\n", error);
goto out;
}
- if (reg & TPS65218_STATUS_PB_STATE) {
+ if (reg & tps_data->pb_mask) {
input_report_key(pwr->idev, KEY_POWER, 1);
pm_wakeup_event(pwr->dev, 0);
} else {
@@ -55,42 +86,55 @@
return IRQ_HANDLED;
}
-static int tps65218_pwron_probe(struct platform_device *pdev)
+static int tps6521x_pb_probe(struct platform_device *pdev)
{
- struct tps65218 *tps = dev_get_drvdata(pdev->dev.parent);
struct device *dev = &pdev->dev;
- struct tps65218_pwrbutton *pwr;
+ struct tps6521x_pwrbutton *pwr;
struct input_dev *idev;
+ const struct of_device_id *match;
int error;
int irq;
+ match = of_match_node(of_tps6521x_pb_match, pdev->dev.of_node);
+ if (!match)
+ return -ENXIO;
+
pwr = devm_kzalloc(dev, sizeof(*pwr), GFP_KERNEL);
if (!pwr)
return -ENOMEM;
+ pwr->data = match->data;
+
idev = devm_input_allocate_device(dev);
if (!idev)
return -ENOMEM;
- idev->name = "tps65218_pwrbutton";
- idev->phys = "tps65218_pwrbutton/input0";
+ idev->name = pwr->data->name;
+ snprintf(pwr->phys, sizeof(pwr->phys), "%s/input0",
+ pwr->data->name);
+ idev->phys = pwr->phys;
idev->dev.parent = dev;
idev->id.bustype = BUS_I2C;
input_set_capability(idev, EV_KEY, KEY_POWER);
- pwr->tps = tps;
+ pwr->regmap = dev_get_regmap(pdev->dev.parent, NULL);
pwr->dev = dev;
pwr->idev = idev;
platform_set_drvdata(pdev, pwr);
device_init_wakeup(dev, true);
irq = platform_get_irq(pdev, 0);
- error = devm_request_threaded_irq(dev, irq, NULL, tps65218_pwr_irq,
+ if (irq < 0) {
+ dev_err(dev, "No IRQ resource!\n");
+ return -EINVAL;
+ }
+
+ error = devm_request_threaded_irq(dev, irq, NULL, tps6521x_pb_irq,
IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING |
IRQF_ONESHOT,
- "tps65218-pwrbutton", pwr);
+ pwr->data->name, pwr);
if (error) {
dev_err(dev, "failed to request IRQ #%d: %d\n",
irq, error);
@@ -106,21 +150,15 @@
return 0;
}
-static const struct of_device_id of_tps65218_pwr_match[] = {
- { .compatible = "ti,tps65218-pwrbutton" },
- { },
-};
-MODULE_DEVICE_TABLE(of, of_tps65218_pwr_match);
-
-static struct platform_driver tps65218_pwron_driver = {
- .probe = tps65218_pwron_probe,
+static struct platform_driver tps6521x_pb_driver = {
+ .probe = tps6521x_pb_probe,
.driver = {
- .name = "tps65218_pwrbutton",
- .of_match_table = of_tps65218_pwr_match,
+ .name = "tps6521x_pwrbutton",
+ .of_match_table = of_tps6521x_pb_match,
},
};
-module_platform_driver(tps65218_pwron_driver);
+module_platform_driver(tps6521x_pb_driver);
-MODULE_DESCRIPTION("TPS65218 Power Button");
+MODULE_DESCRIPTION("TPS6521X Power Button");
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 936f07a..328edc8 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -103,6 +103,7 @@
6-byte ALPS packet */
#define ALPS_STICK_BITS 0x100 /* separate stick button bits */
#define ALPS_BUTTONPAD 0x200 /* device is a clickpad */
+#define ALPS_DUALPOINT_WITH_PRESSURE 0x400 /* device can report trackpoint pressure */
static const struct alps_model_info alps_model_data[] = {
{ { 0x32, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, /* Toshiba Salellite Pro M10 */
@@ -1152,19 +1153,30 @@
alps_process_touchpad_packet_v7(psmouse);
}
-static unsigned char alps_get_pkt_id_ss4_v2(unsigned char *byte)
+static enum SS4_PACKET_ID alps_get_pkt_id_ss4_v2(unsigned char *byte)
{
- unsigned char pkt_id = SS4_PACKET_ID_IDLE;
+ enum SS4_PACKET_ID pkt_id = SS4_PACKET_ID_IDLE;
- if (byte[0] == 0x18 && byte[1] == 0x10 && byte[2] == 0x00 &&
- (byte[3] & 0x88) == 0x08 && byte[4] == 0x10 && byte[5] == 0x00) {
- pkt_id = SS4_PACKET_ID_IDLE;
- } else if (!(byte[3] & 0x10)) {
- pkt_id = SS4_PACKET_ID_ONE;
- } else if (!(byte[3] & 0x20)) {
+ switch (byte[3] & 0x30) {
+ case 0x00:
+ if (SS4_IS_IDLE_V2(byte)) {
+ pkt_id = SS4_PACKET_ID_IDLE;
+ } else {
+ pkt_id = SS4_PACKET_ID_ONE;
+ }
+ break;
+ case 0x10:
+ /* two-finger finger positions */
pkt_id = SS4_PACKET_ID_TWO;
- } else {
+ break;
+ case 0x20:
+ /* stick pointer */
+ pkt_id = SS4_PACKET_ID_STICK;
+ break;
+ case 0x30:
+ /* third and fourth finger positions */
pkt_id = SS4_PACKET_ID_MULTI;
+ break;
}
return pkt_id;
@@ -1174,7 +1186,7 @@
unsigned char *p, struct psmouse *psmouse)
{
struct alps_data *priv = psmouse->private;
- unsigned char pkt_id;
+ enum SS4_PACKET_ID pkt_id;
unsigned int no_data_x, no_data_y;
pkt_id = alps_get_pkt_id_ss4_v2(p);
@@ -1185,7 +1197,13 @@
f->mt[0].x = SS4_1F_X_V2(p);
f->mt[0].y = SS4_1F_Y_V2(p);
f->pressure = ((SS4_1F_Z_V2(p)) * 2) & 0x7f;
- f->fingers = 1;
+ /*
+ * When a button is held the device will give us events
+ * with x, y, and pressure of 0. This causes annoying jumps
+ * if a touch is released while the button is held.
+ * Handle this by claiming zero contacts.
+ */
+ f->fingers = f->pressure > 0 ? 1 : 0;
f->first_mp = 0;
f->is_mp = 0;
break;
@@ -1246,16 +1264,34 @@
}
break;
+ case SS4_PACKET_ID_STICK:
+ /*
+ * x, y, and pressure are decoded in
+ * alps_process_packet_ss4_v2()
+ */
+ f->first_mp = 0;
+ f->is_mp = 0;
+ break;
+
case SS4_PACKET_ID_IDLE:
default:
memset(f, 0, sizeof(struct alps_fields));
break;
}
- f->left = !!(SS4_BTN_V2(p) & 0x01);
- if (!(priv->flags & ALPS_BUTTONPAD)) {
- f->right = !!(SS4_BTN_V2(p) & 0x02);
- f->middle = !!(SS4_BTN_V2(p) & 0x04);
+ /* handle buttons */
+ if (pkt_id == SS4_PACKET_ID_STICK) {
+ f->ts_left = !!(SS4_BTN_V2(p) & 0x01);
+ if (!(priv->flags & ALPS_BUTTONPAD)) {
+ f->ts_right = !!(SS4_BTN_V2(p) & 0x02);
+ f->ts_middle = !!(SS4_BTN_V2(p) & 0x04);
+ }
+ } else {
+ f->left = !!(SS4_BTN_V2(p) & 0x01);
+ if (!(priv->flags & ALPS_BUTTONPAD)) {
+ f->right = !!(SS4_BTN_V2(p) & 0x02);
+ f->middle = !!(SS4_BTN_V2(p) & 0x04);
+ }
}
return 0;
@@ -1266,6 +1302,7 @@
struct alps_data *priv = psmouse->private;
unsigned char *packet = psmouse->packet;
struct input_dev *dev = psmouse->dev;
+ struct input_dev *dev2 = priv->dev2;
struct alps_fields *f = &priv->f;
memset(f, 0, sizeof(struct alps_fields));
@@ -1301,6 +1338,27 @@
priv->multi_packet = 0;
+ /* Report trackstick */
+ if (alps_get_pkt_id_ss4_v2(packet) == SS4_PACKET_ID_STICK) {
+ if (!(priv->flags & ALPS_DUALPOINT)) {
+ psmouse_warn(psmouse,
+ "Rejected trackstick packet from non DualPoint device");
+ return;
+ }
+
+ input_report_rel(dev2, REL_X, SS4_TS_X_V2(packet));
+ input_report_rel(dev2, REL_Y, SS4_TS_Y_V2(packet));
+ input_report_abs(dev2, ABS_PRESSURE, SS4_TS_Z_V2(packet));
+
+ input_report_key(dev2, BTN_LEFT, f->ts_left);
+ input_report_key(dev2, BTN_RIGHT, f->ts_right);
+ input_report_key(dev2, BTN_MIDDLE, f->ts_middle);
+
+ input_sync(dev2);
+ return;
+ }
+
+ /* Report touchpad */
alps_report_mt_data(psmouse, (f->fingers <= 4) ? f->fingers : 4);
input_mt_report_finger_count(dev, f->fingers);
@@ -2695,6 +2753,10 @@
if (alps_set_defaults_ss4_v2(psmouse, priv))
return -EIO;
+ if (priv->fw_ver[1] == 0x1)
+ priv->flags |= ALPS_DUALPOINT |
+ ALPS_DUALPOINT_WITH_PRESSURE;
+
break;
}
@@ -2767,6 +2829,9 @@
} else if (e7[0] == 0x73 && e7[1] == 0x03 &&
e7[2] == 0x14 && ec[1] == 0x02) {
protocol = &alps_v8_protocol_data;
+ } else if (e7[0] == 0x73 && e7[1] == 0x03 &&
+ e7[2] == 0x28 && ec[1] == 0x01) {
+ protocol = &alps_v8_protocol_data;
} else {
psmouse_dbg(psmouse,
"Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec);
@@ -2949,6 +3014,10 @@
input_set_capability(dev2, EV_REL, REL_X);
input_set_capability(dev2, EV_REL, REL_Y);
+ if (priv->flags & ALPS_DUALPOINT_WITH_PRESSURE) {
+ input_set_capability(dev2, EV_ABS, ABS_PRESSURE);
+ input_set_abs_params(dev2, ABS_PRESSURE, 0, 127, 0, 0);
+ }
input_set_capability(dev2, EV_KEY, BTN_LEFT);
input_set_capability(dev2, EV_KEY, BTN_RIGHT);
input_set_capability(dev2, EV_KEY, BTN_MIDDLE);
diff --git a/drivers/input/mouse/alps.h b/drivers/input/mouse/alps.h
index d37f814..cde6f4b 100644
--- a/drivers/input/mouse/alps.h
+++ b/drivers/input/mouse/alps.h
@@ -37,12 +37,14 @@
* or there's button activities.
* SS4_PACKET_ID_TWO: There's two or more fingers on touchpad
* SS4_PACKET_ID_MULTI: There's three or more fingers on touchpad
+ * SS4_PACKET_ID_STICK: A stick pointer packet
*/
enum SS4_PACKET_ID {
SS4_PACKET_ID_IDLE = 0,
SS4_PACKET_ID_ONE,
SS4_PACKET_ID_TWO,
SS4_PACKET_ID_MULTI,
+ SS4_PACKET_ID_STICK,
};
#define SS4_COUNT_PER_ELECTRODE 256
@@ -52,7 +54,15 @@
#define SS4_MASK_NORMAL_BUTTONS 0x07
-#define SS4_1F_X_V2(_b) ((_b[0] & 0x0007) | \
+#define SS4_IS_IDLE_V2(_b) (((_b[0]) == 0x18) && \
+ ((_b[1]) == 0x10) && \
+ ((_b[2]) == 0x00) && \
+ ((_b[3] & 0x88) == 0x08) && \
+ ((_b[4]) == 0x10) && \
+ ((_b[5]) == 0x00) \
+ )
+
+#define SS4_1F_X_V2(_b) (((_b[0]) & 0x0007) | \
((_b[1] << 3) & 0x0078) | \
((_b[1] << 2) & 0x0380) | \
((_b[2] << 5) & 0x1C00) \
@@ -99,6 +109,18 @@
#define SS4_IS_MF_CONTINUE(_b) ((_b[2] & 0x10) == 0x10)
#define SS4_IS_5F_DETECTED(_b) ((_b[2] & 0x10) == 0x10)
+#define SS4_TS_X_V2(_b) (s8)( \
+ ((_b[0] & 0x01) << 7) | \
+ (_b[1] & 0x7F) \
+ )
+
+#define SS4_TS_Y_V2(_b) (s8)( \
+ ((_b[3] & 0x01) << 7) | \
+ (_b[2] & 0x7F) \
+ )
+
+#define SS4_TS_Z_V2(_b) (s8)(_b[4] & 0x7F)
+
#define SS4_MFPACKET_NO_AX 8160 /* X-Coordinate value */
#define SS4_MFPACKET_NO_AY 4080 /* Y-Coordinate value */
@@ -144,7 +166,7 @@
* (aka command mode response) identifies the firmware minor version. This
* can be used to distinguish different hardware models which are not
* uniquely identifiable through their E7 responses.
- * @protocol_info: information about protcol used by the device.
+ * @protocol_info: information about protocol used by the device.
*
* Many (but not all) ALPS touchpads can be identified by looking at the
* values returned in the "E7 report" and/or the "EC report." This table
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index d15b338..fa598f7 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -1093,19 +1093,18 @@
if (error)
return error;
+ dev_info(&client->dev,
+ "Elan Touchpad: Module ID: 0x%04x, Firmware: 0x%04x, Sample: 0x%04x, IAP: 0x%04x\n",
+ data->product_id,
+ data->fw_version,
+ data->sm_version,
+ data->iap_version);
+
dev_dbg(&client->dev,
- "Elan Touchpad Information:\n"
- " Module product ID: 0x%04x\n"
- " Firmware Version: 0x%04x\n"
- " Sample Version: 0x%04x\n"
- " IAP Version: 0x%04x\n"
+ "Elan Touchpad Extra Information:\n"
" Max ABS X,Y: %d,%d\n"
" Width X,Y: %d,%d\n"
" Resolution X,Y: %d,%d (dots/mm)\n",
- data->product_id,
- data->fw_version,
- data->sm_version,
- data->iap_version,
data->max_x, data->max_y,
data->width_x, data->width_y,
data->x_res, data->y_res);
diff --git a/drivers/input/mouse/elan_i2c_smbus.c b/drivers/input/mouse/elan_i2c_smbus.c
index cb6aecb..e23b249 100644
--- a/drivers/input/mouse/elan_i2c_smbus.c
+++ b/drivers/input/mouse/elan_i2c_smbus.c
@@ -222,11 +222,13 @@
static int elan_smbus_get_max(struct i2c_client *client,
unsigned int *max_x, unsigned int *max_y)
{
+ int ret;
int error;
u8 val[3];
- error = i2c_smbus_read_block_data(client, ETP_SMBUS_RANGE_CMD, val);
- if (error) {
+ ret = i2c_smbus_read_block_data(client, ETP_SMBUS_RANGE_CMD, val);
+ if (ret != 3) {
+ error = ret < 0 ? ret : -EIO;
dev_err(&client->dev, "failed to get dimensions: %d\n", error);
return error;
}
@@ -240,12 +242,13 @@
static int elan_smbus_get_resolution(struct i2c_client *client,
u8 *hw_res_x, u8 *hw_res_y)
{
+ int ret;
int error;
u8 val[3];
- error = i2c_smbus_read_block_data(client,
- ETP_SMBUS_RESOLUTION_CMD, val);
- if (error) {
+ ret = i2c_smbus_read_block_data(client, ETP_SMBUS_RESOLUTION_CMD, val);
+ if (ret != 3) {
+ error = ret < 0 ? ret : -EIO;
dev_err(&client->dev, "failed to get resolution: %d\n", error);
return error;
}
@@ -260,12 +263,13 @@
unsigned int *x_traces,
unsigned int *y_traces)
{
+ int ret;
int error;
u8 val[3];
- error = i2c_smbus_read_block_data(client,
- ETP_SMBUS_XY_TRACENUM_CMD, val);
- if (error) {
+ ret = i2c_smbus_read_block_data(client, ETP_SMBUS_XY_TRACENUM_CMD, val);
+ if (ret != 3) {
+ error = ret < 0 ? ret : -EIO;
dev_err(&client->dev, "failed to get trace info: %d\n", error);
return error;
}
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 08e252a..db7d1d6 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1134,7 +1134,7 @@
* System76 Pangolin 0x250f01 ? 2 hw buttons
* (*) + 3 trackpoint buttons
* (**) + 0 trackpoint buttons
- * Note: Lenovo L430 and Lenovo L430 have the same fw_version/caps
+ * Note: Lenovo L430 and Lenovo L530 have the same fw_version/caps
*/
static void elantech_set_buttonpad_prop(struct psmouse *psmouse)
{
@@ -1159,6 +1159,13 @@
DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H730"),
},
},
+ {
+ /* Fujitsu H760 also has a middle button */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H760"),
+ },
+ },
#endif
{ }
};
@@ -1503,10 +1510,10 @@
},
},
{
- /* Fujitsu LIFEBOOK E554 does not work with crc_enabled == 0 */
+ /* Fujitsu H760 does not work with crc_enabled == 0 */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
- DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E554"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H760"),
},
},
{
@@ -1517,6 +1524,20 @@
},
},
{
+ /* Fujitsu LIFEBOOK E554 does not work with crc_enabled == 0 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E554"),
+ },
+ },
+ {
+ /* Fujitsu LIFEBOOK E556 does not work with crc_enabled == 0 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E556"),
+ },
+ },
+ {
/* Fujitsu LIFEBOOK U745 does not work with crc_enabled == 0 */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
diff --git a/drivers/input/mouse/focaltech.c b/drivers/input/mouse/focaltech.c
index c8c6a8c..54eceb3 100644
--- a/drivers/input/mouse/focaltech.c
+++ b/drivers/input/mouse/focaltech.c
@@ -390,7 +390,8 @@
return 0;
}
-void focaltech_set_resolution(struct psmouse *psmouse, unsigned int resolution)
+static void focaltech_set_resolution(struct psmouse *psmouse,
+ unsigned int resolution)
{
/* not supported yet */
}
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 5784e20..fb4b185 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -1916,7 +1916,7 @@
synaptics_module_init();
hgpk_module_init();
- kpsmoused_wq = create_singlethread_workqueue("kpsmoused");
+ kpsmoused_wq = alloc_ordered_workqueue("kpsmoused", 0);
if (!kpsmoused_wq) {
pr_err("failed to create kpsmoused workqueue\n");
return -ENOMEM;
diff --git a/drivers/input/rmi4/rmi_i2c.c b/drivers/input/rmi4/rmi_i2c.c
index 64a5488..082306d 100644
--- a/drivers/input/rmi4/rmi_i2c.c
+++ b/drivers/input/rmi4/rmi_i2c.c
@@ -182,6 +182,21 @@
MODULE_DEVICE_TABLE(of, rmi_i2c_of_match);
#endif
+static void rmi_i2c_regulator_bulk_disable(void *data)
+{
+ struct rmi_i2c_xport *rmi_i2c = data;
+
+ regulator_bulk_disable(ARRAY_SIZE(rmi_i2c->supplies),
+ rmi_i2c->supplies);
+}
+
+static void rmi_i2c_unregister_transport(void *data)
+{
+ struct rmi_i2c_xport *rmi_i2c = data;
+
+ rmi_unregister_transport_device(&rmi_i2c->xport);
+}
+
static int rmi_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -224,6 +239,12 @@
if (retval < 0)
return retval;
+ retval = devm_add_action_or_reset(&client->dev,
+ rmi_i2c_regulator_bulk_disable,
+ rmi_i2c);
+ if (retval)
+ return retval;
+
of_property_read_u32(client->dev.of_node, "syna,startup-delay-ms",
&rmi_i2c->startup_delay);
@@ -254,23 +275,17 @@
client->addr);
return retval;
}
+ retval = devm_add_action_or_reset(&client->dev,
+ rmi_i2c_unregister_transport,
+ rmi_i2c);
+ if (retval)
+ return retval;
dev_info(&client->dev, "registered rmi i2c driver at %#04x.\n",
client->addr);
return 0;
}
-static int rmi_i2c_remove(struct i2c_client *client)
-{
- struct rmi_i2c_xport *rmi_i2c = i2c_get_clientdata(client);
-
- rmi_unregister_transport_device(&rmi_i2c->xport);
- regulator_bulk_disable(ARRAY_SIZE(rmi_i2c->supplies),
- rmi_i2c->supplies);
-
- return 0;
-}
-
#ifdef CONFIG_PM_SLEEP
static int rmi_i2c_suspend(struct device *dev)
{
@@ -367,7 +382,6 @@
},
.id_table = rmi_id,
.probe = rmi_i2c_probe,
- .remove = rmi_i2c_remove,
};
module_i2c_driver(rmi_i2c_driver);
diff --git a/drivers/input/rmi4/rmi_spi.c b/drivers/input/rmi4/rmi_spi.c
index f3e9e48..69548d7 100644
--- a/drivers/input/rmi4/rmi_spi.c
+++ b/drivers/input/rmi4/rmi_spi.c
@@ -358,6 +358,13 @@
}
#endif
+static void rmi_spi_unregister_transport(void *data)
+{
+ struct rmi_spi_xport *rmi_spi = data;
+
+ rmi_unregister_transport_device(&rmi_spi->xport);
+}
+
static int rmi_spi_probe(struct spi_device *spi)
{
struct rmi_spi_xport *rmi_spi;
@@ -425,20 +432,16 @@
dev_err(&spi->dev, "failed to register transport.\n");
return retval;
}
+ retval = devm_add_action_or_reset(&spi->dev,
+ rmi_spi_unregister_transport,
+ rmi_spi);
+ if (retval)
+ return retval;
dev_info(&spi->dev, "registered RMI SPI driver\n");
return 0;
}
-static int rmi_spi_remove(struct spi_device *spi)
-{
- struct rmi_spi_xport *rmi_spi = spi_get_drvdata(spi);
-
- rmi_unregister_transport_device(&rmi_spi->xport);
-
- return 0;
-}
-
#ifdef CONFIG_PM_SLEEP
static int rmi_spi_suspend(struct device *dev)
{
@@ -515,7 +518,6 @@
},
.id_table = rmi_id,
.probe = rmi_spi_probe,
- .remove = rmi_spi_remove,
};
module_spi_driver(rmi_spi_driver);
diff --git a/drivers/input/serio/i8042-io.h b/drivers/input/serio/i8042-io.h
index a5eed2a..34da81c 100644
--- a/drivers/input/serio/i8042-io.h
+++ b/drivers/input/serio/i8042-io.h
@@ -81,7 +81,7 @@
return -EBUSY;
#endif
- i8042_reset = 1;
+ i8042_reset = I8042_RESET_ALWAYS;
return 0;
}
diff --git a/drivers/input/serio/i8042-ip22io.h b/drivers/input/serio/i8042-ip22io.h
index ee1ad27..08a1c10 100644
--- a/drivers/input/serio/i8042-ip22io.h
+++ b/drivers/input/serio/i8042-ip22io.h
@@ -61,7 +61,7 @@
return -EBUSY;
#endif
- i8042_reset = 1;
+ i8042_reset = I8042_RESET_ALWAYS;
return 0;
}
diff --git a/drivers/input/serio/i8042-ppcio.h b/drivers/input/serio/i8042-ppcio.h
index f708c75..1aabea4 100644
--- a/drivers/input/serio/i8042-ppcio.h
+++ b/drivers/input/serio/i8042-ppcio.h
@@ -44,7 +44,7 @@
static inline int i8042_platform_init(void)
{
- i8042_reset = 1;
+ i8042_reset = I8042_RESET_ALWAYS;
return 0;
}
diff --git a/drivers/input/serio/i8042-sparcio.h b/drivers/input/serio/i8042-sparcio.h
index afcd1c1..6231d63 100644
--- a/drivers/input/serio/i8042-sparcio.h
+++ b/drivers/input/serio/i8042-sparcio.h
@@ -130,7 +130,7 @@
}
}
- i8042_reset = 1;
+ i8042_reset = I8042_RESET_ALWAYS;
return 0;
}
diff --git a/drivers/input/serio/i8042-unicore32io.h b/drivers/input/serio/i8042-unicore32io.h
index 73f5cc1..4557475 100644
--- a/drivers/input/serio/i8042-unicore32io.h
+++ b/drivers/input/serio/i8042-unicore32io.h
@@ -61,7 +61,7 @@
if (!request_mem_region(I8042_REGION_START, I8042_REGION_SIZE, "i8042"))
return -EBUSY;
- i8042_reset = 1;
+ i8042_reset = I8042_RESET_ALWAYS;
return 0;
}
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 68f5f4a..21e1347 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -510,6 +510,18 @@
{ }
};
+/*
+ * On some Asus laptops, just running self tests cause problems.
+ */
+static const struct dmi_system_id i8042_dmi_noselftest_table[] = {
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
+ },
+ },
+ { }
+};
static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
{
/* MSI Wind U-100 */
@@ -1040,10 +1052,10 @@
return 0;
}
-#else
+#else /* !CONFIG_PNP */
static inline int i8042_pnp_init(void) { return 0; }
static inline void i8042_pnp_exit(void) { }
-#endif
+#endif /* CONFIG_PNP */
static int __init i8042_platform_init(void)
{
@@ -1072,12 +1084,18 @@
return retval;
#if defined(__ia64__)
- i8042_reset = true;
+ i8042_reset = I8042_RESET_ALWAYS;
#endif
#ifdef CONFIG_X86
- if (dmi_check_system(i8042_dmi_reset_table))
- i8042_reset = true;
+ /* Honor module parameter when value is not default */
+ if (i8042_reset == I8042_RESET_DEFAULT) {
+ if (dmi_check_system(i8042_dmi_reset_table))
+ i8042_reset = I8042_RESET_ALWAYS;
+
+ if (dmi_check_system(i8042_dmi_noselftest_table))
+ i8042_reset = I8042_RESET_NEVER;
+ }
if (dmi_check_system(i8042_dmi_noloop_table))
i8042_noloop = true;
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 405252a..62685a7 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -48,9 +48,39 @@
module_param_named(unlock, i8042_unlock, bool, 0);
MODULE_PARM_DESC(unlock, "Ignore keyboard lock.");
-static bool i8042_reset;
-module_param_named(reset, i8042_reset, bool, 0);
-MODULE_PARM_DESC(reset, "Reset controller during init and cleanup.");
+enum i8042_controller_reset_mode {
+ I8042_RESET_NEVER,
+ I8042_RESET_ALWAYS,
+ I8042_RESET_ON_S2RAM,
+#define I8042_RESET_DEFAULT I8042_RESET_ON_S2RAM
+};
+static enum i8042_controller_reset_mode i8042_reset = I8042_RESET_DEFAULT;
+static int i8042_set_reset(const char *val, const struct kernel_param *kp)
+{
+ enum i8042_controller_reset_mode *arg = kp->arg;
+ int error;
+ bool reset;
+
+ if (val) {
+ error = kstrtobool(val, &reset);
+ if (error)
+ return error;
+ } else {
+ reset = true;
+ }
+
+ *arg = reset ? I8042_RESET_ALWAYS : I8042_RESET_NEVER;
+ return 0;
+}
+
+static const struct kernel_param_ops param_ops_reset_param = {
+ .flags = KERNEL_PARAM_OPS_FL_NOARG,
+ .set = i8042_set_reset,
+};
+#define param_check_reset_param(name, p) \
+ __param_check(name, p, enum i8042_controller_reset_mode)
+module_param_named(reset, i8042_reset, reset_param, 0);
+MODULE_PARM_DESC(reset, "Reset controller on resume, cleanup or both");
static bool i8042_direct;
module_param_named(direct, i8042_direct, bool, 0);
@@ -357,7 +387,7 @@
/*
- * i8042_aux_close attempts to clear AUX or KBD port state by disabling
+ * i8042_port_close attempts to clear AUX or KBD port state by disabling
* and then re-enabling it.
*/
@@ -1019,7 +1049,7 @@
* Reset the controller and reset CRT to the original value set by BIOS.
*/
-static void i8042_controller_reset(bool force_reset)
+static void i8042_controller_reset(bool s2r_wants_reset)
{
i8042_flush();
@@ -1044,8 +1074,10 @@
* Reset the controller if requested.
*/
- if (i8042_reset || force_reset)
+ if (i8042_reset == I8042_RESET_ALWAYS ||
+ (i8042_reset == I8042_RESET_ON_S2RAM && s2r_wants_reset)) {
i8042_controller_selftest();
+ }
/*
* Restore the original control register setting.
@@ -1110,7 +1142,7 @@
* before suspending.
*/
-static int i8042_controller_resume(bool force_reset)
+static int i8042_controller_resume(bool s2r_wants_reset)
{
int error;
@@ -1118,7 +1150,8 @@
if (error)
return error;
- if (i8042_reset || force_reset) {
+ if (i8042_reset == I8042_RESET_ALWAYS ||
+ (i8042_reset == I8042_RESET_ON_S2RAM && s2r_wants_reset)) {
error = i8042_controller_selftest();
if (error)
return error;
@@ -1195,7 +1228,7 @@
static int i8042_pm_resume(struct device *dev)
{
- bool force_reset;
+ bool want_reset;
int i;
for (i = 0; i < I8042_NUM_PORTS; i++) {
@@ -1218,9 +1251,9 @@
* off control to the platform firmware, otherwise we can simply restore
* the mode.
*/
- force_reset = pm_resume_via_firmware();
+ want_reset = pm_resume_via_firmware();
- return i8042_controller_resume(force_reset);
+ return i8042_controller_resume(want_reset);
}
static int i8042_pm_thaw(struct device *dev)
@@ -1482,7 +1515,7 @@
i8042_platform_device = dev;
- if (i8042_reset) {
+ if (i8042_reset == I8042_RESET_ALWAYS) {
error = i8042_controller_selftest();
if (error)
return error;
diff --git a/drivers/input/serio/serport.c b/drivers/input/serio/serport.c
index 9c927d3..d189843 100644
--- a/drivers/input/serio/serport.c
+++ b/drivers/input/serio/serport.c
@@ -71,10 +71,7 @@
spin_lock_irqsave(&serport->lock, flags);
clear_bit(SERPORT_ACTIVE, &serport->flags);
- set_bit(SERPORT_DEAD, &serport->flags);
spin_unlock_irqrestore(&serport->lock, flags);
-
- wake_up_interruptible(&serport->wait);
}
/*
@@ -248,6 +245,19 @@
}
#endif
+static int serport_ldisc_hangup(struct tty_struct *tty)
+{
+ struct serport *serport = (struct serport *) tty->disc_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&serport->lock, flags);
+ set_bit(SERPORT_DEAD, &serport->flags);
+ spin_unlock_irqrestore(&serport->lock, flags);
+
+ wake_up_interruptible(&serport->wait);
+ return 0;
+}
+
static void serport_ldisc_write_wakeup(struct tty_struct * tty)
{
struct serport *serport = (struct serport *) tty->disc_data;
@@ -274,6 +284,7 @@
.compat_ioctl = serport_ldisc_compat_ioctl,
#endif
.receive_buf = serport_ldisc_receive,
+ .hangup = serport_ldisc_hangup,
.write_wakeup = serport_ldisc_write_wakeup
};
diff --git a/drivers/input/tablet/pegasus_notetaker.c b/drivers/input/tablet/pegasus_notetaker.c
index 949dacc..47de5a8 100644
--- a/drivers/input/tablet/pegasus_notetaker.c
+++ b/drivers/input/tablet/pegasus_notetaker.c
@@ -40,6 +40,7 @@
#include <linux/input.h>
#include <linux/usb/input.h>
#include <linux/slab.h>
+#include <linux/workqueue.h>
/* USB HID defines */
#define USB_REQ_GET_REPORT 0x01
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index ec41df8..efca013 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -314,19 +314,6 @@
To compile this driver as a module, choose M here: the
module will be called egalax_ts_serial.
-config TOUCHSCREEN_FT6236
- tristate "FT6236 I2C touchscreen"
- depends on I2C
- depends on GPIOLIB || COMPILE_TEST
- help
- Say Y here to enable support for the I2C connected FT6x06 and
- FT6x36 family of capacitive touchscreen drivers.
-
- If unsure, say N.
-
- To compile this driver as a module, choose M here: the
- module will be called ft6236.
-
config TOUCHSCREEN_FUJITSU
tristate "Fujitsu serial touchscreen"
select SERIO
@@ -406,6 +393,18 @@
To compile this driver as a module, choose M here: the
module will be called gunze.
+config TOUCHSCREEN_EKTF2127
+ tristate "Elan eKTF2127 I2C touchscreen"
+ depends on I2C
+ help
+ Say Y here if you have an Elan eKTF2127 touchscreen
+ connected to your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ektf2127.
+
config TOUCHSCREEN_ELAN
tristate "Elan eKTH I2C touchscreen"
depends on I2C
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index b4373d6..81b8645 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -32,11 +32,11 @@
obj-$(CONFIG_TOUCHSCREEN_HAMPSHIRE) += hampshire.o
obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o
obj-$(CONFIG_TOUCHSCREEN_EETI) += eeti_ts.o
+obj-$(CONFIG_TOUCHSCREEN_EKTF2127) += ektf2127.o
obj-$(CONFIG_TOUCHSCREEN_ELAN) += elants_i2c.o
obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
obj-$(CONFIG_TOUCHSCREEN_EGALAX) += egalax_ts.o
obj-$(CONFIG_TOUCHSCREEN_EGALAX_SERIAL) += egalax_ts_serial.o
-obj-$(CONFIG_TOUCHSCREEN_FT6236) += ft6236.o
obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o
obj-$(CONFIG_TOUCHSCREEN_GOODIX) += goodix.o
obj-$(CONFIG_TOUCHSCREEN_ILI210X) += ili210x.o
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index 703e295..28466e3 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -1063,9 +1063,15 @@
.max_support_points = 10,
};
+static const struct edt_i2c_chip_data edt_ft6236_data = {
+ .max_support_points = 2,
+};
+
static const struct i2c_device_id edt_ft5x06_ts_id[] = {
{ .name = "edt-ft5x06", .driver_data = (long)&edt_ft5x06_data },
{ .name = "edt-ft5506", .driver_data = (long)&edt_ft5506_data },
+ /* Note no edt- prefix for compatibility with the ft6236.c driver */
+ { .name = "ft6236", .driver_data = (long)&edt_ft6236_data },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(i2c, edt_ft5x06_ts_id);
@@ -1076,6 +1082,8 @@
{ .compatible = "edt,edt-ft5306", .data = &edt_ft5x06_data },
{ .compatible = "edt,edt-ft5406", .data = &edt_ft5x06_data },
{ .compatible = "edt,edt-ft5506", .data = &edt_ft5506_data },
+ /* Note focaltech vendor prefix for compatibility with ft6236.c */
+ { .compatible = "focaltech,ft6236", .data = &edt_ft6236_data },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, edt_ft5x06_of_match);
diff --git a/drivers/input/touchscreen/ektf2127.c b/drivers/input/touchscreen/ektf2127.c
new file mode 100644
index 0000000..0ed34ff
--- /dev/null
+++ b/drivers/input/touchscreen/ektf2127.c
@@ -0,0 +1,336 @@
+/*
+ * Driver for ELAN eKTF2127 i2c touchscreen controller
+ *
+ * For this driver the layout of the Chipone icn8318 i2c
+ * touchscreencontroller is used.
+ *
+ * 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.
+ *
+ * Author:
+ * Michel Verlaan <michel.verl@gmail.com>
+ * Siebren Vroegindeweij <siebren.vroegindeweij@hotmail.com>
+ *
+ * Original chipone_icn8318 driver:
+ * Hans de Goede <hdegoede@redhat.com>
+ */
+
+#include <linux/gpio/consumer.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/input/mt.h>
+#include <linux/input/touchscreen.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/delay.h>
+
+/* Packet header defines (first byte of data send / received) */
+#define EKTF2127_NOISE 0x40
+#define EKTF2127_RESPONSE 0x52
+#define EKTF2127_REQUEST 0x53
+#define EKTF2127_HELLO 0x55
+#define EKTF2127_REPORT 0x5d
+#define EKTF2127_CALIB_DONE 0x66
+
+/* Register defines (second byte of data send / received) */
+#define EKTF2127_ENV_NOISY 0x41
+#define EKTF2127_HEIGHT 0x60
+#define EKTF2127_WIDTH 0x63
+
+/* 2 bytes header + 5 * 3 bytes coordinates + 3 bytes pressure info + footer */
+#define EKTF2127_TOUCH_REPORT_SIZE 21
+#define EKTF2127_MAX_TOUCHES 5
+
+struct ektf2127_ts {
+ struct i2c_client *client;
+ struct input_dev *input;
+ struct gpio_desc *power_gpios;
+ struct touchscreen_properties prop;
+};
+
+static void ektf2127_parse_coordinates(const u8* buf, unsigned int touch_count,
+ struct input_mt_pos *touches)
+{
+ int index = 0;
+ int i;
+
+ for (i = 0; i < touch_count; i++) {
+ index = 2 + i * 3;
+
+ touches[i].x = (buf[index] & 0x0f);
+ touches[i].x <<= 8;
+ touches[i].x |= buf[index + 2];
+
+ touches[i].y = (buf[index] & 0xf0);
+ touches[i].y <<= 4;
+ touches[i].y |= buf[index + 1];
+ }
+}
+
+static void ektf2127_report_event(struct ektf2127_ts *ts, const u8 *buf)
+{
+ struct input_mt_pos touches[EKTF2127_MAX_TOUCHES];
+ int slots[EKTF2127_MAX_TOUCHES];
+ unsigned int touch_count, i;
+
+ touch_count = buf[1] & 0x07;
+ if (touch_count > EKTF2127_MAX_TOUCHES) {
+ dev_err(&ts->client->dev,
+ "Too many touches %d > %d\n",
+ touch_count, EKTF2127_MAX_TOUCHES);
+ touch_count = EKTF2127_MAX_TOUCHES;
+ }
+
+ ektf2127_parse_coordinates(buf, touch_count, touches);
+ input_mt_assign_slots(ts->input, slots, touches,
+ touch_count, 0);
+
+ for (i = 0; i < touch_count; i++) {
+ input_mt_slot(ts->input, slots[i]);
+ input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, true);
+ touchscreen_report_pos(ts->input, &ts->prop,
+ touches[i].x, touches[i].y, true);
+ }
+
+ input_mt_sync_frame(ts->input);
+ input_sync(ts->input);
+}
+
+static irqreturn_t ektf2127_irq(int irq, void *dev_id)
+{
+ struct ektf2127_ts *ts = dev_id;
+ struct device *dev = &ts->client->dev;
+ char buf[EKTF2127_TOUCH_REPORT_SIZE];
+ int ret;
+
+ ret = i2c_master_recv(ts->client, buf, EKTF2127_TOUCH_REPORT_SIZE);
+ if (ret != EKTF2127_TOUCH_REPORT_SIZE) {
+ dev_err(dev, "Error reading touch data: %d\n", ret);
+ goto out;
+ }
+
+ switch (buf[0]) {
+ case EKTF2127_REPORT:
+ ektf2127_report_event(ts, buf);
+ break;
+
+ case EKTF2127_NOISE:
+ if (buf[1] == EKTF2127_ENV_NOISY)
+ dev_dbg(dev, "Environment is electrically noisy\n");
+ break;
+
+ case EKTF2127_HELLO:
+ case EKTF2127_CALIB_DONE:
+ break;
+
+ default:
+ dev_err(dev, "Unexpected packet header byte %#02x\n", buf[0]);
+ break;
+ }
+
+out:
+ return IRQ_HANDLED;
+}
+
+static int ektf2127_start(struct input_dev *dev)
+{
+ struct ektf2127_ts *ts = input_get_drvdata(dev);
+
+ enable_irq(ts->client->irq);
+ gpiod_set_value_cansleep(ts->power_gpios, 1);
+
+ return 0;
+}
+
+static void ektf2127_stop(struct input_dev *dev)
+{
+ struct ektf2127_ts *ts = input_get_drvdata(dev);
+
+ disable_irq(ts->client->irq);
+ gpiod_set_value_cansleep(ts->power_gpios, 0);
+}
+
+static int __maybe_unused ektf2127_suspend(struct device *dev)
+{
+ struct ektf2127_ts *ts = i2c_get_clientdata(to_i2c_client(dev));
+
+ mutex_lock(&ts->input->mutex);
+ if (ts->input->users)
+ ektf2127_stop(ts->input);
+ mutex_unlock(&ts->input->mutex);
+
+ return 0;
+}
+
+static int __maybe_unused ektf2127_resume(struct device *dev)
+{
+ struct ektf2127_ts *ts = i2c_get_clientdata(to_i2c_client(dev));
+
+ mutex_lock(&ts->input->mutex);
+ if (ts->input->users)
+ ektf2127_start(ts->input);
+ mutex_unlock(&ts->input->mutex);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(ektf2127_pm_ops, ektf2127_suspend,
+ ektf2127_resume);
+
+static int ektf2127_query_dimension(struct i2c_client *client, bool width)
+{
+ struct device *dev = &client->dev;
+ const char *what = width ? "width" : "height";
+ u8 what_code = width ? EKTF2127_WIDTH : EKTF2127_HEIGHT;
+ u8 buf[4];
+ int ret;
+ int error;
+
+ /* Request dimension */
+ buf[0] = EKTF2127_REQUEST;
+ buf[1] = width ? EKTF2127_WIDTH : EKTF2127_HEIGHT;
+ buf[2] = 0x00;
+ buf[3] = 0x00;
+ ret = i2c_master_send(client, buf, sizeof(buf));
+ if (ret != sizeof(buf)) {
+ error = ret < 0 ? ret : -EIO;
+ dev_err(dev, "Failed to request %s: %d\n", what, error);
+ return error;
+ }
+
+ msleep(20);
+
+ /* Read response */
+ ret = i2c_master_recv(client, buf, sizeof(buf));
+ if (ret != sizeof(buf)) {
+ error = ret < 0 ? ret : -EIO;
+ dev_err(dev, "Failed to receive %s data: %d\n", what, error);
+ return error;
+ }
+
+ if (buf[0] != EKTF2127_RESPONSE || buf[1] != what_code) {
+ dev_err(dev, "Unexpected %s data: %#02x %#02x\n",
+ what, buf[0], buf[1]);
+ return -EIO;
+ }
+
+ return (((buf[3] & 0xf0) << 4) | buf[2]) - 1;
+}
+
+static int ektf2127_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = &client->dev;
+ struct ektf2127_ts *ts;
+ struct input_dev *input;
+ u8 buf[4];
+ int max_x, max_y;
+ int error;
+
+ if (!client->irq) {
+ dev_err(dev, "Error no irq specified\n");
+ return -EINVAL;
+ }
+
+ ts = devm_kzalloc(dev, sizeof(*ts), GFP_KERNEL);
+ if (!ts)
+ return -ENOMEM;
+
+ /* This requests the gpio *and* turns on the touchscreen controller */
+ ts->power_gpios = devm_gpiod_get(dev, "power", GPIOD_OUT_HIGH);
+ if (IS_ERR(ts->power_gpios)) {
+ error = PTR_ERR(ts->power_gpios);
+ if (error != -EPROBE_DEFER)
+ dev_err(dev, "Error getting power gpio: %d\n", error);
+ return error;
+ }
+
+ input = devm_input_allocate_device(dev);
+ if (!input)
+ return -ENOMEM;
+
+ input->name = client->name;
+ input->id.bustype = BUS_I2C;
+ input->open = ektf2127_start;
+ input->close = ektf2127_stop;
+
+ ts->client = client;
+
+ /* Read hello (ignore result, depends on initial power state) */
+ msleep(20);
+ i2c_master_recv(ts->client, buf, sizeof(buf));
+
+ /* Read resolution from chip */
+ max_x = ektf2127_query_dimension(client, true);
+ if (max_x < 0)
+ return max_x;
+
+ max_y = ektf2127_query_dimension(client, false);
+ if (max_y < 0)
+ return max_y;
+
+ input_set_abs_params(input, ABS_MT_POSITION_X, 0, max_x, 0, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_Y, 0, max_y, 0, 0);
+ touchscreen_parse_properties(input, true, &ts->prop);
+
+ error = input_mt_init_slots(input, EKTF2127_MAX_TOUCHES,
+ INPUT_MT_DIRECT |
+ INPUT_MT_DROP_UNUSED |
+ INPUT_MT_TRACK);
+ if (error)
+ return error;
+
+ ts->input = input;
+ input_set_drvdata(input, ts);
+
+ error = devm_request_threaded_irq(dev, client->irq,
+ NULL, ektf2127_irq,
+ IRQF_ONESHOT, client->name, ts);
+ if (error) {
+ dev_err(dev, "Error requesting irq: %d\n", error);
+ return error;
+ }
+
+ /* Stop device till opened */
+ ektf2127_stop(ts->input);
+
+ error = input_register_device(input);
+ if (error)
+ return error;
+
+ i2c_set_clientdata(client, ts);
+
+ return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id ektf2127_of_match[] = {
+ { .compatible = "elan,ektf2127" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, ektf2127_of_match);
+#endif
+
+static const struct i2c_device_id ektf2127_i2c_id[] = {
+ { "ektf2127", 0 },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, ektf2127_i2c_id);
+
+static struct i2c_driver ektf2127_driver = {
+ .driver = {
+ .name = "elan_ektf2127",
+ .pm = &ektf2127_pm_ops,
+ .of_match_table = of_match_ptr(ektf2127_of_match),
+ },
+ .probe = ektf2127_probe,
+ .id_table = ektf2127_i2c_id,
+};
+module_i2c_driver(ektf2127_driver);
+
+MODULE_DESCRIPTION("ELAN eKTF2127 I2C Touchscreen Driver");
+MODULE_AUTHOR("Michel Verlaan, Siebren Vroegindeweij");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c
index ac09855..02aec28 100644
--- a/drivers/input/touchscreen/elants_i2c.c
+++ b/drivers/input/touchscreen/elants_i2c.c
@@ -298,7 +298,7 @@
return get_unaligned_be32(buf) >> 4;
}
-static int elants_i2c_query_fw_id(struct elants_data *ts)
+static int elants_i2c_query_hw_version(struct elants_data *ts)
{
struct i2c_client *client = ts->client;
int error, retry_cnt;
@@ -318,8 +318,13 @@
error, (int)sizeof(resp), resp);
}
- dev_err(&client->dev,
- "Failed to read fw id or fw id is invalid\n");
+ if (error) {
+ dev_err(&client->dev,
+ "Failed to read fw id: %d\n", error);
+ return error;
+ }
+
+ dev_err(&client->dev, "Invalid fw id: %#04x\n", ts->hw_version);
return -EINVAL;
}
@@ -508,7 +513,7 @@
static int elants_i2c_initialize(struct elants_data *ts)
{
struct i2c_client *client = ts->client;
- int error, retry_cnt;
+ int error, error2, retry_cnt;
const u8 hello_packet[] = { 0x55, 0x55, 0x55, 0x55 };
const u8 recov_packet[] = { 0x55, 0x55, 0x80, 0x80 };
u8 buf[HEADER_SIZE];
@@ -553,18 +558,22 @@
}
}
+ /* hw version is available even if device in recovery state */
+ error2 = elants_i2c_query_hw_version(ts);
if (!error)
- error = elants_i2c_query_fw_id(ts);
+ error = error2;
+
if (!error)
error = elants_i2c_query_fw_version(ts);
+ if (!error)
+ error = elants_i2c_query_test_version(ts);
+ if (!error)
+ error = elants_i2c_query_bc_version(ts);
+ if (!error)
+ error = elants_i2c_query_ts_info(ts);
- if (error) {
+ if (error)
ts->iap_mode = ELAN_IAP_RECOVERY;
- } else {
- elants_i2c_query_test_version(ts);
- elants_i2c_query_bc_version(ts);
- elants_i2c_query_ts_info(ts);
- }
return 0;
}
diff --git a/drivers/input/touchscreen/fsl-imx25-tcq.c b/drivers/input/touchscreen/fsl-imx25-tcq.c
index fe9877a..d50ee490 100644
--- a/drivers/input/touchscreen/fsl-imx25-tcq.c
+++ b/drivers/input/touchscreen/fsl-imx25-tcq.c
@@ -55,6 +55,7 @@
{ .compatible = "fsl,imx25-tcq", },
{ /* Sentinel */ }
};
+MODULE_DEVICE_TABLE(of, mx25_tcq_ids);
#define TSC_4WIRE_PRE_INDEX 0
#define TSC_4WIRE_X_INDEX 1
diff --git a/drivers/input/touchscreen/ft6236.c b/drivers/input/touchscreen/ft6236.c
deleted file mode 100644
index d240d2e..0000000
--- a/drivers/input/touchscreen/ft6236.c
+++ /dev/null
@@ -1,326 +0,0 @@
-/*
- * FocalTech FT6236 TouchScreen driver.
- *
- * Copyright (c) 2010 Focal tech Ltd.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <linux/delay.h>
-#include <linux/gpio/consumer.h>
-#include <linux/i2c.h>
-#include <linux/input.h>
-#include <linux/input/mt.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/property.h>
-
-#define FT6236_MAX_TOUCH_POINTS 2
-
-#define FT6236_REG_TH_GROUP 0x80
-#define FT6236_REG_PERIODACTIVE 0x88
-#define FT6236_REG_LIB_VER_H 0xa1
-#define FT6236_REG_LIB_VER_L 0xa2
-#define FT6236_REG_CIPHER 0xa3
-#define FT6236_REG_FIRMID 0xa6
-#define FT6236_REG_FOCALTECH_ID 0xa8
-#define FT6236_REG_RELEASE_CODE_ID 0xaf
-
-#define FT6236_EVENT_PRESS_DOWN 0
-#define FT6236_EVENT_LIFT_UP 1
-#define FT6236_EVENT_CONTACT 2
-#define FT6236_EVENT_NO_EVENT 3
-
-struct ft6236_data {
- struct i2c_client *client;
- struct input_dev *input;
- struct gpio_desc *reset_gpio;
- u32 max_x;
- u32 max_y;
- bool invert_x;
- bool invert_y;
- bool swap_xy;
-};
-
-/*
- * This struct is a touchpoint as stored in hardware. Note that the id,
- * as well as the event, are stored in the upper nybble of the hi byte.
- */
-struct ft6236_touchpoint {
- union {
- u8 xhi;
- u8 event;
- };
- u8 xlo;
- union {
- u8 yhi;
- u8 id;
- };
- u8 ylo;
- u8 weight;
- u8 misc;
-} __packed;
-
-/* This packet represents the register map as read from offset 0 */
-struct ft6236_packet {
- u8 dev_mode;
- u8 gest_id;
- u8 touches;
- struct ft6236_touchpoint points[FT6236_MAX_TOUCH_POINTS];
-} __packed;
-
-static int ft6236_read(struct i2c_client *client, u8 reg, u8 len, void *data)
-{
- int error;
-
- error = i2c_smbus_read_i2c_block_data(client, reg, len, data);
- if (error < 0)
- return error;
-
- if (error != len)
- return -EIO;
-
- return 0;
-}
-
-static irqreturn_t ft6236_interrupt(int irq, void *dev_id)
-{
- struct ft6236_data *ft6236 = dev_id;
- struct device *dev = &ft6236->client->dev;
- struct input_dev *input = ft6236->input;
- struct ft6236_packet buf;
- u8 touches;
- int i, error;
-
- error = ft6236_read(ft6236->client, 0, sizeof(buf), &buf);
- if (error) {
- dev_err(dev, "read touchdata failed %d\n", error);
- return IRQ_HANDLED;
- }
-
- touches = buf.touches & 0xf;
- if (touches > FT6236_MAX_TOUCH_POINTS) {
- dev_dbg(dev,
- "%d touch points reported, only %d are supported\n",
- touches, FT6236_MAX_TOUCH_POINTS);
- touches = FT6236_MAX_TOUCH_POINTS;
- }
-
- for (i = 0; i < touches; i++) {
- struct ft6236_touchpoint *point = &buf.points[i];
- u16 x = ((point->xhi & 0xf) << 8) | buf.points[i].xlo;
- u16 y = ((point->yhi & 0xf) << 8) | buf.points[i].ylo;
- u8 event = point->event >> 6;
- u8 id = point->id >> 4;
- bool act = (event == FT6236_EVENT_PRESS_DOWN ||
- event == FT6236_EVENT_CONTACT);
-
- input_mt_slot(input, id);
- input_mt_report_slot_state(input, MT_TOOL_FINGER, act);
- if (!act)
- continue;
-
- if (ft6236->invert_x)
- x = ft6236->max_x - x;
-
- if (ft6236->invert_y)
- y = ft6236->max_y - y;
-
- if (ft6236->swap_xy) {
- input_report_abs(input, ABS_MT_POSITION_X, y);
- input_report_abs(input, ABS_MT_POSITION_Y, x);
- } else {
- input_report_abs(input, ABS_MT_POSITION_X, x);
- input_report_abs(input, ABS_MT_POSITION_Y, y);
- }
- }
-
- input_mt_sync_frame(input);
- input_sync(input);
-
- return IRQ_HANDLED;
-}
-
-static u8 ft6236_debug_read_byte(struct ft6236_data *ft6236, u8 reg)
-{
- struct i2c_client *client = ft6236->client;
- u8 val = 0;
- int error;
-
- error = ft6236_read(client, reg, 1, &val);
- if (error)
- dev_dbg(&client->dev,
- "error reading register 0x%02x: %d\n", reg, error);
-
- return val;
-}
-
-static void ft6236_debug_info(struct ft6236_data *ft6236)
-{
- struct device *dev = &ft6236->client->dev;
-
- dev_dbg(dev, "Touch threshold is %d\n",
- ft6236_debug_read_byte(ft6236, FT6236_REG_TH_GROUP) * 4);
- dev_dbg(dev, "Report rate is %dHz\n",
- ft6236_debug_read_byte(ft6236, FT6236_REG_PERIODACTIVE) * 10);
- dev_dbg(dev, "Firmware library version 0x%02x%02x\n",
- ft6236_debug_read_byte(ft6236, FT6236_REG_LIB_VER_H),
- ft6236_debug_read_byte(ft6236, FT6236_REG_LIB_VER_L));
- dev_dbg(dev, "Firmware version 0x%02x\n",
- ft6236_debug_read_byte(ft6236, FT6236_REG_FIRMID));
- dev_dbg(dev, "Chip vendor ID 0x%02x\n",
- ft6236_debug_read_byte(ft6236, FT6236_REG_CIPHER));
- dev_dbg(dev, "CTPM vendor ID 0x%02x\n",
- ft6236_debug_read_byte(ft6236, FT6236_REG_FOCALTECH_ID));
- dev_dbg(dev, "Release code version 0x%02x\n",
- ft6236_debug_read_byte(ft6236, FT6236_REG_RELEASE_CODE_ID));
-}
-
-static void ft6236_reset(struct ft6236_data *ft6236)
-{
- if (!ft6236->reset_gpio)
- return;
-
- gpiod_set_value_cansleep(ft6236->reset_gpio, 1);
- usleep_range(5000, 20000);
- gpiod_set_value_cansleep(ft6236->reset_gpio, 0);
- msleep(300);
-}
-
-static int ft6236_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct device *dev = &client->dev;
- struct ft6236_data *ft6236;
- struct input_dev *input;
- u32 fuzz_x = 0, fuzz_y = 0;
- u8 val;
- int error;
-
- if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
- return -ENXIO;
-
- if (!client->irq) {
- dev_err(dev, "irq is missing\n");
- return -EINVAL;
- }
-
- ft6236 = devm_kzalloc(dev, sizeof(*ft6236), GFP_KERNEL);
- if (!ft6236)
- return -ENOMEM;
-
- ft6236->client = client;
- ft6236->reset_gpio = devm_gpiod_get_optional(dev, "reset",
- GPIOD_OUT_LOW);
- if (IS_ERR(ft6236->reset_gpio)) {
- error = PTR_ERR(ft6236->reset_gpio);
- if (error != -EPROBE_DEFER)
- dev_err(dev, "error getting reset gpio: %d\n", error);
- return error;
- }
-
- ft6236_reset(ft6236);
-
- /* verify that the controller is present */
- error = ft6236_read(client, 0x00, 1, &val);
- if (error) {
- dev_err(dev, "failed to read from controller: %d\n", error);
- return error;
- }
-
- ft6236_debug_info(ft6236);
-
- input = devm_input_allocate_device(dev);
- if (!input)
- return -ENOMEM;
-
- ft6236->input = input;
- input->name = client->name;
- input->id.bustype = BUS_I2C;
-
- if (device_property_read_u32(dev, "touchscreen-size-x",
- &ft6236->max_x) ||
- device_property_read_u32(dev, "touchscreen-size-y",
- &ft6236->max_y)) {
- dev_err(dev, "touchscreen-size-x and/or -y missing\n");
- return -EINVAL;
- }
-
- device_property_read_u32(dev, "touchscreen-fuzz-x", &fuzz_x);
- device_property_read_u32(dev, "touchscreen-fuzz-y", &fuzz_y);
- ft6236->invert_x = device_property_read_bool(dev,
- "touchscreen-inverted-x");
- ft6236->invert_y = device_property_read_bool(dev,
- "touchscreen-inverted-y");
- ft6236->swap_xy = device_property_read_bool(dev,
- "touchscreen-swapped-x-y");
-
- if (ft6236->swap_xy) {
- input_set_abs_params(input, ABS_MT_POSITION_X, 0,
- ft6236->max_y, fuzz_y, 0);
- input_set_abs_params(input, ABS_MT_POSITION_Y, 0,
- ft6236->max_x, fuzz_x, 0);
- } else {
- input_set_abs_params(input, ABS_MT_POSITION_X, 0,
- ft6236->max_x, fuzz_x, 0);
- input_set_abs_params(input, ABS_MT_POSITION_Y, 0,
- ft6236->max_y, fuzz_y, 0);
- }
-
- error = input_mt_init_slots(input, FT6236_MAX_TOUCH_POINTS,
- INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED);
- if (error)
- return error;
-
- error = devm_request_threaded_irq(dev, client->irq, NULL,
- ft6236_interrupt, IRQF_ONESHOT,
- client->name, ft6236);
- if (error) {
- dev_err(dev, "request irq %d failed: %d\n", client->irq, error);
- return error;
- }
-
- error = input_register_device(input);
- if (error) {
- dev_err(dev, "failed to register input device: %d\n", error);
- return error;
- }
-
- return 0;
-}
-
-#ifdef CONFIG_OF
-static const struct of_device_id ft6236_of_match[] = {
- { .compatible = "focaltech,ft6236", },
- { }
-};
-MODULE_DEVICE_TABLE(of, ft6236_of_match);
-#endif
-
-static const struct i2c_device_id ft6236_id[] = {
- { "ft6236", },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, ft6236_id);
-
-static struct i2c_driver ft6236_driver = {
- .driver = {
- .name = "ft6236",
- .of_match_table = of_match_ptr(ft6236_of_match),
- },
- .probe = ft6236_probe,
- .id_table = ft6236_id,
-};
-module_i2c_driver(ft6236_driver);
-
-MODULE_AUTHOR("Sean Cross <xobs@kosagi.com>");
-MODULE_AUTHOR("Noralf Trønnes <noralf@tronnes.org>");
-MODULE_DESCRIPTION("FocalTech FT6236 TouchScreen driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/touchscreen/imx6ul_tsc.c b/drivers/input/touchscreen/imx6ul_tsc.c
index 8275267..7098e0a 100644
--- a/drivers/input/touchscreen/imx6ul_tsc.c
+++ b/drivers/input/touchscreen/imx6ul_tsc.c
@@ -21,17 +21,25 @@
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/io.h>
+#include <linux/log2.h>
/* ADC configuration registers field define */
#define ADC_AIEN (0x1 << 7)
#define ADC_CONV_DISABLE 0x1F
+#define ADC_AVGE (0x1 << 5)
#define ADC_CAL (0x1 << 7)
#define ADC_CALF 0x2
#define ADC_12BIT_MODE (0x2 << 2)
+#define ADC_CONV_MODE_MASK (0x3 << 2)
#define ADC_IPG_CLK 0x00
+#define ADC_INPUT_CLK_MASK 0x3
#define ADC_CLK_DIV_8 (0x03 << 5)
+#define ADC_CLK_DIV_MASK (0x3 << 5)
#define ADC_SHORT_SAMPLE_MODE (0x0 << 4)
+#define ADC_SAMPLE_MODE_MASK (0x1 << 4)
#define ADC_HARDWARE_TRIGGER (0x1 << 13)
+#define ADC_AVGS_SHIFT 14
+#define ADC_AVGS_MASK (0x3 << 14)
#define SELECT_CHANNEL_4 0x04
#define SELECT_CHANNEL_1 0x01
#define DISABLE_CONVERSION_INT (0x0 << 7)
@@ -84,8 +92,10 @@
struct clk *adc_clk;
struct gpio_desc *xnur_gpio;
- int measure_delay_time;
- int pre_charge_time;
+ u32 measure_delay_time;
+ u32 pre_charge_time;
+ bool average_enable;
+ u32 average_select;
struct completion completion;
};
@@ -96,17 +106,23 @@
*/
static int imx6ul_adc_init(struct imx6ul_tsc *tsc)
{
- int adc_hc = 0;
- int adc_gc;
- int adc_gs;
- int adc_cfg;
- int timeout;
+ u32 adc_hc = 0;
+ u32 adc_gc;
+ u32 adc_gs;
+ u32 adc_cfg;
+ unsigned long timeout;
reinit_completion(&tsc->completion);
adc_cfg = readl(tsc->adc_regs + REG_ADC_CFG);
+ adc_cfg &= ~(ADC_CONV_MODE_MASK | ADC_INPUT_CLK_MASK);
adc_cfg |= ADC_12BIT_MODE | ADC_IPG_CLK;
+ adc_cfg &= ~(ADC_CLK_DIV_MASK | ADC_SAMPLE_MODE_MASK);
adc_cfg |= ADC_CLK_DIV_8 | ADC_SHORT_SAMPLE_MODE;
+ if (tsc->average_enable) {
+ adc_cfg &= ~ADC_AVGS_MASK;
+ adc_cfg |= (tsc->average_select) << ADC_AVGS_SHIFT;
+ }
adc_cfg &= ~ADC_HARDWARE_TRIGGER;
writel(adc_cfg, tsc->adc_regs + REG_ADC_CFG);
@@ -118,6 +134,8 @@
/* start ADC calibration */
adc_gc = readl(tsc->adc_regs + REG_ADC_GC);
adc_gc |= ADC_CAL;
+ if (tsc->average_enable)
+ adc_gc |= ADC_AVGE;
writel(adc_gc, tsc->adc_regs + REG_ADC_GC);
timeout = wait_for_completion_timeout
@@ -148,7 +166,7 @@
*/
static void imx6ul_tsc_channel_config(struct imx6ul_tsc *tsc)
{
- int adc_hc0, adc_hc1, adc_hc2, adc_hc3, adc_hc4;
+ u32 adc_hc0, adc_hc1, adc_hc2, adc_hc3, adc_hc4;
adc_hc0 = DISABLE_CONVERSION_INT;
writel(adc_hc0, tsc->adc_regs + REG_ADC_HC0);
@@ -173,8 +191,8 @@
*/
static void imx6ul_tsc_set(struct imx6ul_tsc *tsc)
{
- int basic_setting = 0;
- int start;
+ u32 basic_setting = 0;
+ u32 start;
basic_setting |= tsc->measure_delay_time << 8;
basic_setting |= DETECT_4_WIRE_MODE | AUTO_MEASURE;
@@ -209,8 +227,8 @@
static void imx6ul_tsc_disable(struct imx6ul_tsc *tsc)
{
- int tsc_flow;
- int adc_cfg;
+ u32 tsc_flow;
+ u32 adc_cfg;
/* TSC controller enters to idle status */
tsc_flow = readl(tsc->tsc_regs + REG_TSC_FLOW_CONTROL);
@@ -227,8 +245,8 @@
static bool tsc_wait_detect_mode(struct imx6ul_tsc *tsc)
{
unsigned long timeout = jiffies + msecs_to_jiffies(2);
- int state_machine;
- int debug_mode2;
+ u32 state_machine;
+ u32 debug_mode2;
do {
if (time_after(jiffies, timeout))
@@ -246,10 +264,10 @@
static irqreturn_t tsc_irq_fn(int irq, void *dev_id)
{
struct imx6ul_tsc *tsc = dev_id;
- int status;
- int value;
- int x, y;
- int start;
+ u32 status;
+ u32 value;
+ u32 x, y;
+ u32 start;
status = readl(tsc->tsc_regs + REG_TSC_INT_STATUS);
@@ -289,8 +307,8 @@
static irqreturn_t adc_irq_fn(int irq, void *dev_id)
{
struct imx6ul_tsc *tsc = dev_id;
- int coco;
- int value;
+ u32 coco;
+ u32 value;
coco = readl(tsc->adc_regs + REG_ADC_HS);
if (coco & 0x01) {
@@ -346,6 +364,7 @@
int err;
int tsc_irq;
int adc_irq;
+ u32 average_samples;
tsc = devm_kzalloc(&pdev->dev, sizeof(*tsc), GFP_KERNEL);
if (!tsc)
@@ -450,6 +469,30 @@
if (err)
tsc->pre_charge_time = 0xfff;
+ err = of_property_read_u32(np, "touchscreen-average-samples",
+ &average_samples);
+ if (err)
+ average_samples = 1;
+
+ switch (average_samples) {
+ case 1:
+ tsc->average_enable = false;
+ tsc->average_select = 0; /* value unused; initialize anyway */
+ break;
+ case 4:
+ case 8:
+ case 16:
+ case 32:
+ tsc->average_enable = true;
+ tsc->average_select = ilog2(average_samples) - 2;
+ break;
+ default:
+ dev_err(&pdev->dev,
+ "touchscreen-average-samples (%u) must be 1, 4, 8, 16 or 32\n",
+ average_samples);
+ return -EINVAL;
+ }
+
err = input_register_device(tsc->input);
if (err) {
dev_err(&pdev->dev,
diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c
index ea3b6a5..729b3c8 100644
--- a/drivers/input/touchscreen/jornada720_ts.c
+++ b/drivers/input/touchscreen/jornada720_ts.c
@@ -13,6 +13,7 @@
* HP Jornada 710/720/729 Touchscreen Driver
*/
+#include <linux/gpio/consumer.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/interrupt.h>
@@ -20,9 +21,7 @@
#include <linux/slab.h>
#include <linux/io.h>
-#include <mach/hardware.h>
#include <mach/jornada720.h>
-#include <mach/irqs.h>
MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
MODULE_DESCRIPTION("HP Jornada 710/720/728 touchscreen driver");
@@ -30,6 +29,7 @@
struct jornada_ts {
struct input_dev *dev;
+ struct gpio_desc *gpio;
int x_data[4]; /* X sample values */
int y_data[4]; /* Y sample values */
};
@@ -71,8 +71,8 @@
struct input_dev *input = jornada_ts->dev;
int x, y;
- /* If GPIO_GPIO9 is set to high then report pen up */
- if (GPLR & GPIO_GPIO(9)) {
+ /* If gpio is high then report pen up */
+ if (gpiod_get_value(jornada_ts->gpio)) {
input_report_key(input, BTN_TOUCH, 0);
input_sync(input);
} else {
@@ -101,7 +101,7 @@
{
struct jornada_ts *jornada_ts;
struct input_dev *input_dev;
- int error;
+ int error, irq;
jornada_ts = devm_kzalloc(&pdev->dev, sizeof(*jornada_ts), GFP_KERNEL);
if (!jornada_ts)
@@ -113,6 +113,14 @@
platform_set_drvdata(pdev, jornada_ts);
+ jornada_ts->gpio = devm_gpiod_get(&pdev->dev, "penup", GPIOD_IN);
+ if (IS_ERR(jornada_ts->gpio))
+ return PTR_ERR(jornada_ts->gpio);
+
+ irq = gpiod_to_irq(jornada_ts->gpio);
+ if (irq <= 0)
+ return irq < 0 ? irq : -EINVAL;
+
jornada_ts->dev = input_dev;
input_dev->name = "HP Jornada 7xx Touchscreen";
@@ -125,8 +133,7 @@
input_set_abs_params(input_dev, ABS_X, 270, 3900, 0, 0);
input_set_abs_params(input_dev, ABS_Y, 180, 3700, 0, 0);
- error = devm_request_irq(&pdev->dev, IRQ_GPIO9,
- jornada720_ts_interrupt,
+ error = devm_request_irq(&pdev->dev, irq, jornada720_ts_interrupt,
IRQF_TRIGGER_RISING,
"HP7XX Touchscreen driver", pdev);
if (error) {
diff --git a/drivers/input/touchscreen/mc13783_ts.c b/drivers/input/touchscreen/mc13783_ts.c
index 913e25a..ef64f36 100644
--- a/drivers/input/touchscreen/mc13783_ts.c
+++ b/drivers/input/touchscreen/mc13783_ts.c
@@ -37,7 +37,6 @@
struct input_dev *idev;
struct mc13xxx *mc13xxx;
struct delayed_work work;
- struct workqueue_struct *workq;
unsigned int sample[4];
struct mc13xxx_ts_platform_data *touch;
};
@@ -54,7 +53,7 @@
* be rescheduled for immediate execution here. However the rearm
* delay is HZ / 50 which is acceptable.
*/
- queue_delayed_work(priv->workq, &priv->work, 0);
+ schedule_delayed_work(&priv->work, 0);
return IRQ_HANDLED;
}
@@ -106,16 +105,18 @@
dev_dbg(&idev->dev, "report (%d, %d, %d)\n",
x1, y1, 0x1000 - cr0);
- queue_delayed_work(priv->workq, &priv->work, HZ / 50);
- } else
+ schedule_delayed_work(&priv->work, HZ / 50);
+ } else {
dev_dbg(&idev->dev, "report release\n");
+ }
input_report_abs(idev, ABS_PRESSURE,
cr0 ? 0x1000 - cr0 : cr0);
input_report_key(idev, BTN_TOUCH, cr0);
input_sync(idev);
- } else
+ } else {
dev_dbg(&idev->dev, "discard event\n");
+ }
}
static void mc13783_ts_work(struct work_struct *work)
@@ -189,14 +190,6 @@
goto err_free_mem;
}
- /*
- * We need separate workqueue because mc13783_adc_do_conversion
- * uses keventd and thus would deadlock.
- */
- priv->workq = create_singlethread_workqueue("mc13783_ts");
- if (!priv->workq)
- goto err_free_mem;
-
idev->name = MC13783_TS_NAME;
idev->dev.parent = &pdev->dev;
@@ -215,14 +208,12 @@
if (ret) {
dev_err(&pdev->dev,
"register input device failed with %d\n", ret);
- goto err_destroy_wq;
+ goto err_free_mem;
}
platform_set_drvdata(pdev, priv);
return 0;
-err_destroy_wq:
- destroy_workqueue(priv->workq);
err_free_mem:
input_free_device(idev);
kfree(priv);
@@ -233,7 +224,6 @@
{
struct mc13783_ts_priv *priv = platform_get_drvdata(pdev);
- destroy_workqueue(priv->workq);
input_unregister_device(priv->idev);
kfree(priv);
diff --git a/drivers/input/touchscreen/melfas_mip4.c b/drivers/input/touchscreen/melfas_mip4.c
index fb5fb91..703d7f9 100644
--- a/drivers/input/touchscreen/melfas_mip4.c
+++ b/drivers/input/touchscreen/melfas_mip4.c
@@ -33,7 +33,7 @@
/*****************************************************************
* Protocol
- * Version : MIP 4.0 Rev 4.6
+ * Version : MIP 4.0 Rev 5.4
*****************************************************************/
/* Address */
@@ -81,6 +81,9 @@
#define MIP4_R1_INFO_IC_HW_CATEGORY 0x77
#define MIP4_R1_INFO_CONTACT_THD_SCR 0x78
#define MIP4_R1_INFO_CONTACT_THD_KEY 0x7A
+#define MIP4_R1_INFO_PID 0x7C
+#define MIP4_R1_INFO_VID 0x7E
+#define MIP4_R1_INFO_SLAVE_ADDR 0x80
#define MIP4_R0_EVENT 0x02
#define MIP4_R1_EVENT_SUPPORTED_FUNC 0x00
@@ -157,6 +160,9 @@
char phys[32];
char product_name[16];
+ u16 product_id;
+ char ic_name[4];
+ char fw_name[32];
unsigned int max_x;
unsigned int max_y;
@@ -263,6 +269,35 @@
dev_dbg(&ts->client->dev, "product name: %.*s\n",
(int)sizeof(ts->product_name), ts->product_name);
+ /* Product ID */
+ cmd[0] = MIP4_R0_INFO;
+ cmd[1] = MIP4_R1_INFO_PID;
+ error = mip4_i2c_xfer(ts, cmd, sizeof(cmd), buf, 2);
+ if (error) {
+ dev_warn(&ts->client->dev,
+ "Failed to retrieve product id: %d\n", error);
+ } else {
+ ts->product_id = get_unaligned_le16(&buf[0]);
+ dev_dbg(&ts->client->dev, "product id: %04X\n", ts->product_id);
+ }
+
+ /* Firmware name */
+ snprintf(ts->fw_name, sizeof(ts->fw_name),
+ "melfas_mip4_%04X.fw", ts->product_id);
+ dev_dbg(&ts->client->dev, "firmware name: %s\n", ts->fw_name);
+
+ /* IC name */
+ cmd[0] = MIP4_R0_INFO;
+ cmd[1] = MIP4_R1_INFO_IC_NAME;
+ error = mip4_i2c_xfer(ts, cmd, sizeof(cmd),
+ ts->ic_name, sizeof(ts->ic_name));
+ if (error)
+ dev_warn(&ts->client->dev,
+ "Failed to retrieve IC name: %d\n", error);
+ else
+ dev_dbg(&ts->client->dev, "IC name: %.*s\n",
+ (int)sizeof(ts->ic_name), ts->ic_name);
+
/* Firmware version */
error = mip4_get_fw_version(ts);
if (error)
@@ -1256,11 +1291,11 @@
const struct firmware *fw;
int error;
- error = request_firmware(&fw, MIP4_FW_NAME, dev);
+ error = request_firmware(&fw, ts->fw_name, dev);
if (error) {
dev_err(&ts->client->dev,
"Failed to retrieve firmware %s: %d\n",
- MIP4_FW_NAME, error);
+ ts->fw_name, error);
return error;
}
@@ -1326,7 +1361,7 @@
* paired with current firmware in the chip.
*/
count = snprintf(buf, PAGE_SIZE, "%.*s\n",
- (int)sizeof(ts->product_name), ts->product_name);
+ (int)sizeof(ts->product_name), ts->product_name);
mutex_unlock(&ts->input->mutex);
@@ -1335,9 +1370,50 @@
static DEVICE_ATTR(hw_version, S_IRUGO, mip4_sysfs_read_hw_version, NULL);
+static ssize_t mip4_sysfs_read_product_id(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct mip4_ts *ts = i2c_get_clientdata(client);
+ size_t count;
+
+ mutex_lock(&ts->input->mutex);
+
+ count = snprintf(buf, PAGE_SIZE, "%04X\n", ts->product_id);
+
+ mutex_unlock(&ts->input->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(product_id, S_IRUGO, mip4_sysfs_read_product_id, NULL);
+
+static ssize_t mip4_sysfs_read_ic_name(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct mip4_ts *ts = i2c_get_clientdata(client);
+ size_t count;
+
+ mutex_lock(&ts->input->mutex);
+
+ count = snprintf(buf, PAGE_SIZE, "%.*s\n",
+ (int)sizeof(ts->ic_name), ts->ic_name);
+
+ mutex_unlock(&ts->input->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(ic_name, S_IRUGO, mip4_sysfs_read_ic_name, NULL);
+
static struct attribute *mip4_attrs[] = {
&dev_attr_fw_version.attr,
&dev_attr_hw_version.attr,
+ &dev_attr_product_id.attr,
+ &dev_attr_ic_name.attr,
&dev_attr_update_fw.attr,
NULL,
};
@@ -1401,6 +1477,7 @@
input->id.bustype = BUS_I2C;
input->id.vendor = 0x13c5;
+ input->id.product = ts->product_id;
input->open = mip4_input_open;
input->close = mip4_input_close;
@@ -1538,6 +1615,6 @@
module_i2c_driver(mip4_driver);
MODULE_DESCRIPTION("MELFAS MIP4 Touchscreen");
-MODULE_VERSION("2016.03.12");
+MODULE_VERSION("2016.10.31");
MODULE_AUTHOR("Sangwon Jee <jeesw@melfas.com>");
MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
index d159e14..3bb0637 100644
--- a/drivers/input/touchscreen/pixcir_i2c_ts.c
+++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
@@ -11,10 +11,6 @@
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/delay.h>
@@ -404,7 +400,6 @@
mutex_lock(&input->mutex);
if (device_may_wakeup(&client->dev)) {
-
if (!input->users) {
ret = pixcir_stop(ts);
if (ret) {
@@ -431,13 +426,7 @@
static int pixcir_parse_dt(struct device *dev,
struct pixcir_i2c_ts_data *tsdata)
{
- const struct of_device_id *match;
-
- match = of_match_device(of_match_ptr(pixcir_of_match), dev);
- if (!match)
- return -EINVAL;
-
- tsdata->chip = (const struct pixcir_i2c_chip_data *)match->data;
+ tsdata->chip = of_device_get_match_data(dev);
if (!tsdata->chip)
return -EINVAL;
diff --git a/drivers/input/touchscreen/raydium_i2c_ts.c b/drivers/input/touchscreen/raydium_i2c_ts.c
index a99fb5c..2658afa 100644
--- a/drivers/input/touchscreen/raydium_i2c_ts.c
+++ b/drivers/input/touchscreen/raydium_i2c_ts.c
@@ -669,7 +669,7 @@
if (ts->boot_mode == RAYDIUM_TS_MAIN) {
dev_err(&client->dev,
- "failied to jump to boot loader: %d\n",
+ "failed to jump to boot loader: %d\n",
error);
return -EIO;
}
diff --git a/drivers/input/touchscreen/silead.c b/drivers/input/touchscreen/silead.c
index f502c84..404830a 100644
--- a/drivers/input/touchscreen/silead.c
+++ b/drivers/input/touchscreen/silead.c
@@ -29,6 +29,7 @@
#include <linux/input/touchscreen.h>
#include <linux/pm.h>
#include <linux/irq.h>
+#include <linux/regulator/consumer.h>
#include <asm/unaligned.h>
@@ -73,6 +74,7 @@
struct i2c_client *client;
struct gpio_desc *gpio_power;
struct input_dev *input;
+ struct regulator_bulk_data regulators[2];
char fw_name[64];
struct touchscreen_properties prop;
u32 max_fingers;
@@ -433,6 +435,13 @@
}
#endif
+static void silead_disable_regulator(void *arg)
+{
+ struct silead_ts_data *data = arg;
+
+ regulator_bulk_disable(ARRAY_SIZE(data->regulators), data->regulators);
+}
+
static int silead_ts_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -465,6 +474,26 @@
if (client->irq <= 0)
return -ENODEV;
+ data->regulators[0].supply = "vddio";
+ data->regulators[1].supply = "avdd";
+ error = devm_regulator_bulk_get(dev, ARRAY_SIZE(data->regulators),
+ data->regulators);
+ if (error)
+ return error;
+
+ /*
+ * Enable regulators at probe and disable them at remove, we need
+ * to keep the chip powered otherwise it forgets its firmware.
+ */
+ error = regulator_bulk_enable(ARRAY_SIZE(data->regulators),
+ data->regulators);
+ if (error)
+ return error;
+
+ error = devm_add_action_or_reset(dev, silead_disable_regulator, data);
+ if (error)
+ return error;
+
/* Power GPIO pin */
data->gpio_power = devm_gpiod_get_optional(dev, "power", GPIOD_OUT_LOW);
if (IS_ERR(data->gpio_power)) {
diff --git a/drivers/input/touchscreen/wdt87xx_i2c.c b/drivers/input/touchscreen/wdt87xx_i2c.c
index 73861ad..a913260 100644
--- a/drivers/input/touchscreen/wdt87xx_i2c.c
+++ b/drivers/input/touchscreen/wdt87xx_i2c.c
@@ -23,7 +23,7 @@
#include <asm/unaligned.h>
#define WDT87XX_NAME "wdt87xx_i2c"
-#define WDT87XX_DRV_VER "0.9.7"
+#define WDT87XX_DRV_VER "0.9.8"
#define WDT87XX_FW_NAME "wdt87xx_fw.bin"
#define WDT87XX_CFG_NAME "wdt87xx_cfg.bin"
@@ -157,6 +157,7 @@
/* Controller requires minimum 300us between commands */
#define WDT_COMMAND_DELAY_MS 2
#define WDT_FLASH_WRITE_DELAY_MS 4
+#define WDT_FLASH_ERASE_DELAY_MS 200
#define WDT_FW_RESET_TIME 2500
struct wdt87xx_sys_param {
@@ -726,7 +727,7 @@
break;
}
- msleep(50);
+ msleep(WDT_FLASH_ERASE_DELAY_MS);
error = wdt87xx_write_data(client, data, start_addr,
page_size);
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index 1534e9b..90d6be3 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -500,7 +500,7 @@
{
struct wm97xx *wm = input_get_drvdata(idev);
- wm->ts_workq = create_singlethread_workqueue("kwm97xx");
+ wm->ts_workq = alloc_ordered_workqueue("kwm97xx", 0);
if (wm->ts_workq == NULL) {
dev_err(wm->dev,
"Failed to create workqueue\n");
diff --git a/include/linux/gpio_keys.h b/include/linux/gpio_keys.h
index ee2d8c6..0b71024 100644
--- a/include/linux/gpio_keys.h
+++ b/include/linux/gpio_keys.h
@@ -2,7 +2,6 @@
#define _GPIO_KEYS_H
struct device;
-struct gpio_desc;
/**
* struct gpio_keys_button - configuration parameters
@@ -18,7 +17,6 @@
* disable button via sysfs
* @value: axis value for %EV_ABS
* @irq: Irq number in case of interrupt keys
- * @gpiod: GPIO descriptor
*/
struct gpio_keys_button {
unsigned int code;
@@ -31,7 +29,6 @@
bool can_disable;
int value;
unsigned int irq;
- struct gpio_desc *gpiod;
};
/**
@@ -46,7 +43,7 @@
* @name: input device name
*/
struct gpio_keys_platform_data {
- struct gpio_keys_button *buttons;
+ const struct gpio_keys_button *buttons;
int nbuttons;
unsigned int poll_interval;
unsigned int rep:1;
diff --git a/include/linux/platform_data/drv260x-pdata.h b/include/linux/platform_data/drv260x-pdata.h
deleted file mode 100644
index 0a03b09..0000000
--- a/include/linux/platform_data/drv260x-pdata.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Platform data for DRV260X haptics driver family
- *
- * Author: Dan Murphy <dmurphy@ti.com>
- *
- * Copyright: (C) 2014 Texas Instruments, Inc.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- */
-
-#ifndef _LINUX_DRV260X_PDATA_H
-#define _LINUX_DRV260X_PDATA_H
-
-struct drv260x_platform_data {
- u32 library_selection;
- u32 mode;
- u32 vib_rated_voltage;
- u32 vib_overdrive_voltage;
-};
-
-#endif