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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Browse Source 
Pull input subsystem updates from Dmitry Torokhov:
 "Two new drivers for Elan hardware (for I2C touchpad and touchscreen
  found in several Chromebooks and other devices), a driver for Goodix
  touch panel, and small fixes to Cypress I2C trackpad and other input
  drivers.

  Also we switched to use __maybe_unused instead of gating suspend/
  resume code with #ifdef guards to get better compile coverage"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (27 commits)
  Input: gpio_keys - fix warning regarding uninitialized 'button' variable
  Input: add support for Elan eKTH I2C touchscreens
  Input: gpio_keys - fix warning regarding uninitialized  'irq' variable
  Input: cyapa - use 'error' for error codes
  Input: cyapa - fix resuming the device
  Input: gpio_keys - add device tree support for interrupt only keys
  Input: amikbd - allocate temporary keymap buffer on the stack
  Input: amikbd - fix build if !CONFIG_HW_CONSOLE
  Input: lm8323 - missing error check in lm8323_set_disable()
  Input: initialize device counter variables with -1
  Input: initialize input_no to -1 to avoid subtraction
  Input: i8042 - do not try to load on Intel NUC D54250WYK
  Input: atkbd - correct MSC_SCAN events for force_release keys
  Input: cyapa - switch to using managed resources
  Input: lifebook - use "static inline" instead of "inline" in lifebook.h
  Input: touchscreen - use __maybe_unused instead of ifdef around suspend/resume
  Input: mouse - use __maybe_unused instead of ifdef around suspend/resume
  Input: misc - use __maybe_unused instead of ifdef around suspend/resume
  Input: cap11xx - support for irq-active-high option
  Input: cap11xx - add support for various cap11xx devices
  ...
This commit is contained in:
Linus Torvalds
2014-12-17 10:06:02 -08:00
parent d6666be6f0 f20c86cd75
commit d797da41b2
77 changed files with 4950 additions and 923 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
Documentation/devicetree/bindings/input/cap1106.txt → Documentation/devicetree/bindings/input/cap11xx.txt
View File

@@ -1,14 +1,16 @@
Device tree bindings for Microchip CAP1106, 6 channel capacitive touch sensor
Device tree bindings for Microchip CAP11xx based capacitive touch sensors
The node for this driver must be a child of a I2C controller node, as the
The node for this device must be a child of a I2C controller node, as the
device communication via I2C only.
Required properties:
compatible: Must be "microchip,cap1106"
compatible: Must contain one of:
"microchip,cap1106"
"microchip,cap1126"
"microchip,cap1188"
reg: The I2C slave address of the device.
Only 0x28 is valid.
interrupts: Property describing the interrupt line the
device's ALERT#/CM_IRQ# pin is connected to.
@@ -26,6 +28,10 @@ Optional properties:
Valid values are 1, 2, 4, and 8.
By default, a gain of 1 is set.
microchip,irq-active-high: By default the interrupt pin is active low
open drain. This property allows using the active
high push-pull output.
linux,keycodes: Specifies an array of numeric keycode values to
be used for the channels. If this property is
omitted, KEY_A, KEY_B, etc are used as
@@ -43,11 +49,11 @@ i2c_controller {
autorepeat;
microchip,sensor-gain = <2>;
linux,keycodes = <103 /* KEY_UP */
106 /* KEY_RIGHT */
108 /* KEY_DOWN */
105 /* KEY_LEFT */
109 /* KEY_PAGEDOWN */
104>; /* KEY_PAGEUP */
linux,keycodes = <103>, /* KEY_UP */
<106>, /* KEY_RIGHT */
<108>, /* KEY_DOWN */
<105>, /* KEY_LEFT */
<109>, /* KEY_PAGEDOWN */
<104>; /* KEY_PAGEUP */
};
}

34
Documentation/devicetree/bindings/input/elan_i2c.txt Normal file
View File

@@ -0,0 +1,34 @@
Elantech I2C Touchpad
Required properties:
- compatible: must be "elan,ekth3000".
- reg: I2C address of the chip.
- interrupt-parent: a phandle for the interrupt controller (see interrupt
binding[0]).
- interrupts: interrupt to which the chip is connected (see interrupt
binding[0]).
Optional properties:
- wakeup-source: touchpad can be used as a wakeup source.
- pinctrl-names: should be "default" (see pinctrl binding [1]).
- pinctrl-0: a phandle pointing to the pin settings for the device (see
pinctrl binding [1]).
- vcc-supply: a phandle for the regulator supplying 3.3V power.
[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
Example:
&i2c1 {
/* ... */
touchpad@15 {
compatible = "elan,ekth3000";
reg = <0x15>;
interrupt-parent = <&gpio4>;
interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>;
wakeup-source;
};
/* ... */
};

33
Documentation/devicetree/bindings/input/elants_i2c.txt Normal file
View File

@@ -0,0 +1,33 @@
Elantech I2C Touchscreen
Required properties:
- compatible: must be "elan,ekth3500".
- reg: I2C address of the chip.
- interrupt-parent: a phandle for the interrupt controller (see interrupt
binding[0]).
- interrupts: interrupt to which the chip is connected (see interrupt
binding[0]).
Optional properties:
- wakeup-source: touchscreen can be used as a wakeup source.
- pinctrl-names: should be "default" (see pinctrl binding [1]).
- pinctrl-0: a phandle pointing to the pin settings for the device (see
pinctrl binding [1]).
[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
Example:
&i2c1 {
/* ... */
touchscreen@10 {
compatible = "elan,ekth3500";
reg = <0x10>;
interrupt-parent = <&gpio4>;
interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>;
wakeup-source;
};
/* ... */
};

10
Documentation/devicetree/bindings/input/gpio-keys.txt
View File

@@ -10,10 +10,13 @@ Optional properties:
Each button (key) is represented as a sub-node of "gpio-keys":
Subnode properties:
- gpios: OF device-tree gpio specification.
- label: Descriptive name of the key.
- linux,code: Keycode to emit.
Required mutual exclusive subnode-properties:
- gpios: OF device-tree gpio specification.
- interrupts: the interrupt line for that input
Optional subnode-properties:
- linux,input-type: Specify event type this button/key generates.
If not specified defaults to <1> == EV_KEY.
@@ -33,4 +36,9 @@ Example nodes:
linux,code = <103>;
gpios = <&gpio1 0 1>;
};
button@22 {
label = "GPIO Key DOWN";
linux,code = <108>;
interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
};
...

1
Documentation/devicetree/bindings/vendor-prefixes.txt
View File

@@ -47,6 +47,7 @@ dlink D-Link Corporation
dmo Data Modul AG
ebv EBV Elektronik
edt Emerging Display Technologies
elan Elan Microelectronic Corp.
emmicro EM Microelectronic
energymicro Silicon Laboratories (formerly Energy Micro AS)
epcos EPCOS AG

6
MAINTAINERS
View File

@@ -4255,6 +4255,12 @@ L: linux-media@vger.kernel.org
S: Maintained
F: drivers/media/usb/go7007/
GOODIX TOUCHSCREEN
M: Bastien Nocera <hadess@hadess.net>
L: linux-input@vger.kernel.org
S: Maintained
F: drivers/input/touchscreen/goodix.c
GPIO SUBSYSTEM
M: Linus Walleij <linus.walleij@linaro.org>
M: Alexandre Courbot <gnurou@gmail.com>

4
drivers/input/gameport/gameport.c
View File

@@ -527,14 +527,14 @@ EXPORT_SYMBOL(gameport_set_phys);
*/
static void gameport_init_port(struct gameport *gameport)
{
static atomic_t gameport_no = ATOMIC_INIT(0);
static atomic_t gameport_no = ATOMIC_INIT(-1);
__module_get(THIS_MODULE);
mutex_init(&gameport->drv_mutex);
device_initialize(&gameport->dev);
dev_set_name(&gameport->dev, "gameport%lu",
(unsigned long)atomic_inc_return(&gameport_no) - 1);
(unsigned long)atomic_inc_return(&gameport_no));
gameport->dev.bus = &gameport_bus;
gameport->dev.release = gameport_release_port;
if (gameport->parent)

4
drivers/input/input.c
View File

@@ -1775,7 +1775,7 @@ EXPORT_SYMBOL_GPL(input_class);
*/
struct input_dev *input_allocate_device(void)
{
static atomic_t input_no = ATOMIC_INIT(0);
static atomic_t input_no = ATOMIC_INIT(-1);
struct input_dev *dev;
dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
@@ -1790,7 +1790,7 @@ struct input_dev *input_allocate_device(void)
INIT_LIST_HEAD(&dev->node);
dev_set_name(&dev->dev, "input%lu",
(unsigned long) atomic_inc_return(&input_no) - 1);
(unsigned long)atomic_inc_return(&input_no));
__module_get(THIS_MODULE);
}

8
drivers/input/joystick/xpad.c
View File

@@ -886,8 +886,8 @@ static void xpad_led_set(struct led_classdev *led_cdev,
static int xpad_led_probe(struct usb_xpad *xpad)
{
static atomic_t led_seq = ATOMIC_INIT(0);
long led_no;
static atomic_t led_seq = ATOMIC_INIT(-1);
unsigned long led_no;
struct xpad_led *led;
struct led_classdev *led_cdev;
int error;
@@ -899,9 +899,9 @@ static int xpad_led_probe(struct usb_xpad *xpad)
if (!led)
return -ENOMEM;
led_no = (long)atomic_inc_return(&led_seq) - 1;
led_no = atomic_inc_return(&led_seq);
snprintf(led->name, sizeof(led->name), "xpad%ld", led_no);
snprintf(led->name, sizeof(led->name), "xpad%lu", led_no);
led->xpad = xpad;
led_cdev = &led->led_cdev;

8
drivers/input/keyboard/Kconfig
View File

@@ -665,14 +665,14 @@ config KEYBOARD_CROS_EC
To compile this driver as a module, choose M here: the
module will be called cros_ec_keyb.
config KEYBOARD_CAP1106
tristate "Microchip CAP1106 touch sensor"
config KEYBOARD_CAP11XX
tristate "Microchip CAP11XX based touch sensors"
depends on OF && I2C
select REGMAP_I2C
help
Say Y here to enable the CAP1106 touch sensor driver.
Say Y here to enable the CAP11XX touch sensor driver.
To compile this driver as a module, choose M here: the
module will be called cap1106.
module will be called cap11xx.
endif

2
drivers/input/keyboard/Makefile
View File

@@ -11,7 +11,7 @@ obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o
obj-$(CONFIG_KEYBOARD_ATARI) += atakbd.o
obj-$(CONFIG_KEYBOARD_ATKBD) += atkbd.o
obj-$(CONFIG_KEYBOARD_BFIN) += bf54x-keys.o
obj-$(CONFIG_KEYBOARD_CAP1106) += cap1106.o
obj-$(CONFIG_KEYBOARD_CAP11XX) += cap11xx.o
obj-$(CONFIG_KEYBOARD_CLPS711X) += clps711x-keypad.o
obj-$(CONFIG_KEYBOARD_CROS_EC) += cros_ec_keyb.o
obj-$(CONFIG_KEYBOARD_DAVINCI) += davinci_keyscan.o

47
drivers/input/keyboard/amikbd.c
View File

@@ -45,6 +45,7 @@ MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("Amiga keyboard driver");
MODULE_LICENSE("GPL");
#ifdef CONFIG_HW_CONSOLE
static unsigned char amikbd_keycode[0x78] __initdata = {
[0] = KEY_GRAVE,
[1] = KEY_1,
@@ -144,6 +145,32 @@ static unsigned char amikbd_keycode[0x78] __initdata = {
[103] = KEY_RIGHTMETA
};
static void __init amikbd_init_console_keymaps(void)
{
/* We can spare 512 bytes on stack for temp_map in init path. */
unsigned short temp_map[NR_KEYS];
int i, j;
for (i = 0; i < MAX_NR_KEYMAPS; i++) {
if (!key_maps[i])
continue;
memset(temp_map, 0, sizeof(temp_map));
for (j = 0; j < 0x78; j++) {
if (!amikbd_keycode[j])
continue;
temp_map[j] = key_maps[i][amikbd_keycode[j]];
}
for (j = 0; j < NR_KEYS; j++) {
if (!temp_map[j])
temp_map[j] = 0xf200;
}
memcpy(key_maps[i], temp_map, sizeof(temp_map));
}
}
#else /* !CONFIG_HW_CONSOLE */
static inline void amikbd_init_console_keymaps(void) {}
#endif /* !CONFIG_HW_CONSOLE */
static const char *amikbd_messages[8] = {
[0] = KERN_ALERT "amikbd: Ctrl-Amiga-Amiga reset warning!!\n",
[1] = KERN_WARNING "amikbd: keyboard lost sync\n",
@@ -186,7 +213,7 @@ static irqreturn_t amikbd_interrupt(int irq, void *data)
static int __init amikbd_probe(struct platform_device *pdev)
{
struct input_dev *dev;
int i, j, err;
int i, err;
dev = input_allocate_device();
if (!dev) {
@@ -207,22 +234,8 @@ static int __init amikbd_probe(struct platform_device *pdev)
for (i = 0; i < 0x78; i++)
set_bit(i, dev->keybit);
for (i = 0; i < MAX_NR_KEYMAPS; i++) {
static u_short temp_map[NR_KEYS] __initdata;
if (!key_maps[i])
continue;
memset(temp_map, 0, sizeof(temp_map));
for (j = 0; j < 0x78; j++) {
if (!amikbd_keycode[j])
continue;
temp_map[j] = key_maps[i][amikbd_keycode[j]];
}
for (j = 0; j < NR_KEYS; j++) {
if (!temp_map[j])
temp_map[j] = 0xf200;
}
memcpy(key_maps[i], temp_map, sizeof(temp_map));
}
amikbd_init_console_keymaps();
ciaa.cra &= ~0x41; /* serial data in, turn off TA */
err = request_irq(IRQ_AMIGA_CIAA_SP, amikbd_interrupt, 0, "amikbd",
dev);

6
drivers/input/keyboard/atkbd.c
View File

@@ -456,8 +456,9 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
keycode = atkbd->keycode[code];
if (keycode != ATKBD_KEY_NULL)
input_event(dev, EV_MSC, MSC_SCAN, code);
if (!(atkbd->release && test_bit(code, atkbd->force_release_mask)))
if (keycode != ATKBD_KEY_NULL)
input_event(dev, EV_MSC, MSC_SCAN, code);
switch (keycode) {
case ATKBD_KEY_NULL:
@@ -511,6 +512,7 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
input_sync(dev);
if (value && test_bit(code, atkbd->force_release_mask)) {
input_event(dev, EV_MSC, MSC_SCAN, code);
input_report_key(dev, keycode, 0);
input_sync(dev);
}

341
drivers/input/keyboard/cap1106.c
View File

@@ -1,341 +0,0 @@
/*
* Input driver for Microchip CAP1106, 6 channel capacitive touch sensor
*
* http://www.microchip.com/wwwproducts/Devices.aspx?product=CAP1106
*
* (c) 2014 Daniel Mack <linux@zonque.org>
*
* 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/kernel.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/of_irq.h>
#include <linux/regmap.h>
#include <linux/i2c.h>
#include <linux/gpio/consumer.h>
#define CAP1106_REG_MAIN_CONTROL 0x00
#define CAP1106_REG_MAIN_CONTROL_GAIN_SHIFT (6)
#define CAP1106_REG_MAIN_CONTROL_GAIN_MASK (0xc0)
#define CAP1106_REG_MAIN_CONTROL_DLSEEP BIT(4)
#define CAP1106_REG_GENERAL_STATUS 0x02
#define CAP1106_REG_SENSOR_INPUT 0x03
#define CAP1106_REG_NOISE_FLAG_STATUS 0x0a
#define CAP1106_REG_SENOR_DELTA(X) (0x10 + (X))
#define CAP1106_REG_SENSITIVITY_CONTROL 0x1f
#define CAP1106_REG_CONFIG 0x20
#define CAP1106_REG_SENSOR_ENABLE 0x21
#define CAP1106_REG_SENSOR_CONFIG 0x22
#define CAP1106_REG_SENSOR_CONFIG2 0x23
#define CAP1106_REG_SAMPLING_CONFIG 0x24
#define CAP1106_REG_CALIBRATION 0x26
#define CAP1106_REG_INT_ENABLE 0x27
#define CAP1106_REG_REPEAT_RATE 0x28
#define CAP1106_REG_MT_CONFIG 0x2a
#define CAP1106_REG_MT_PATTERN_CONFIG 0x2b
#define CAP1106_REG_MT_PATTERN 0x2d
#define CAP1106_REG_RECALIB_CONFIG 0x2f
#define CAP1106_REG_SENSOR_THRESH(X) (0x30 + (X))
#define CAP1106_REG_SENSOR_NOISE_THRESH 0x38
#define CAP1106_REG_STANDBY_CHANNEL 0x40
#define CAP1106_REG_STANDBY_CONFIG 0x41
#define CAP1106_REG_STANDBY_SENSITIVITY 0x42
#define CAP1106_REG_STANDBY_THRESH 0x43
#define CAP1106_REG_CONFIG2 0x44
#define CAP1106_REG_SENSOR_BASE_CNT(X) (0x50 + (X))
#define CAP1106_REG_SENSOR_CALIB (0xb1 + (X))
#define CAP1106_REG_SENSOR_CALIB_LSB1 0xb9
#define CAP1106_REG_SENSOR_CALIB_LSB2 0xba
#define CAP1106_REG_PRODUCT_ID 0xfd
#define CAP1106_REG_MANUFACTURER_ID 0xfe
#define CAP1106_REG_REVISION 0xff
#define CAP1106_NUM_CHN 6
#define CAP1106_PRODUCT_ID 0x55
#define CAP1106_MANUFACTURER_ID 0x5d
struct cap1106_priv {
struct regmap *regmap;
struct input_dev *idev;
/* config */
unsigned short keycodes[CAP1106_NUM_CHN];
};
static const struct reg_default cap1106_reg_defaults[] = {
{ CAP1106_REG_MAIN_CONTROL, 0x00 },
{ CAP1106_REG_GENERAL_STATUS, 0x00 },
{ CAP1106_REG_SENSOR_INPUT, 0x00 },
{ CAP1106_REG_NOISE_FLAG_STATUS, 0x00 },
{ CAP1106_REG_SENSITIVITY_CONTROL, 0x2f },
{ CAP1106_REG_CONFIG, 0x20 },
{ CAP1106_REG_SENSOR_ENABLE, 0x3f },
{ CAP1106_REG_SENSOR_CONFIG, 0xa4 },
{ CAP1106_REG_SENSOR_CONFIG2, 0x07 },
{ CAP1106_REG_SAMPLING_CONFIG, 0x39 },
{ CAP1106_REG_CALIBRATION, 0x00 },
{ CAP1106_REG_INT_ENABLE, 0x3f },
{ CAP1106_REG_REPEAT_RATE, 0x3f },
{ CAP1106_REG_MT_CONFIG, 0x80 },
{ CAP1106_REG_MT_PATTERN_CONFIG, 0x00 },
{ CAP1106_REG_MT_PATTERN, 0x3f },
{ CAP1106_REG_RECALIB_CONFIG, 0x8a },
{ CAP1106_REG_SENSOR_THRESH(0), 0x40 },
{ CAP1106_REG_SENSOR_THRESH(1), 0x40 },
{ CAP1106_REG_SENSOR_THRESH(2), 0x40 },
{ CAP1106_REG_SENSOR_THRESH(3), 0x40 },
{ CAP1106_REG_SENSOR_THRESH(4), 0x40 },
{ CAP1106_REG_SENSOR_THRESH(5), 0x40 },
{ CAP1106_REG_SENSOR_NOISE_THRESH, 0x01 },
{ CAP1106_REG_STANDBY_CHANNEL, 0x00 },
{ CAP1106_REG_STANDBY_CONFIG, 0x39 },
{ CAP1106_REG_STANDBY_SENSITIVITY, 0x02 },
{ CAP1106_REG_STANDBY_THRESH, 0x40 },
{ CAP1106_REG_CONFIG2, 0x40 },
{ CAP1106_REG_SENSOR_CALIB_LSB1, 0x00 },
{ CAP1106_REG_SENSOR_CALIB_LSB2, 0x00 },
};
static bool cap1106_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case CAP1106_REG_MAIN_CONTROL:
case CAP1106_REG_SENSOR_INPUT:
case CAP1106_REG_SENOR_DELTA(0):
case CAP1106_REG_SENOR_DELTA(1):
case CAP1106_REG_SENOR_DELTA(2):
case CAP1106_REG_SENOR_DELTA(3):
case CAP1106_REG_SENOR_DELTA(4):
case CAP1106_REG_SENOR_DELTA(5):
case CAP1106_REG_PRODUCT_ID:
case CAP1106_REG_MANUFACTURER_ID:
case CAP1106_REG_REVISION:
return true;
}
return false;
}
static const struct regmap_config cap1106_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = CAP1106_REG_REVISION,
.reg_defaults = cap1106_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(cap1106_reg_defaults),
.cache_type = REGCACHE_RBTREE,
.volatile_reg = cap1106_volatile_reg,
};
static irqreturn_t cap1106_thread_func(int irq_num, void *data)
{
struct cap1106_priv *priv = data;
unsigned int status;
int ret, i;
/*
* Deassert interrupt. This needs to be done before reading the status
* registers, which will not carry valid values otherwise.
*/
ret = regmap_update_bits(priv->regmap, CAP1106_REG_MAIN_CONTROL, 1, 0);
if (ret < 0)
goto out;
ret = regmap_read(priv->regmap, CAP1106_REG_SENSOR_INPUT, &status);
if (ret < 0)
goto out;
for (i = 0; i < CAP1106_NUM_CHN; i++)
input_report_key(priv->idev, priv->keycodes[i],
status & (1 << i));
input_sync(priv->idev);
out:
return IRQ_HANDLED;
}
static int cap1106_set_sleep(struct cap1106_priv *priv, bool sleep)
{
return regmap_update_bits(priv->regmap, CAP1106_REG_MAIN_CONTROL,
CAP1106_REG_MAIN_CONTROL_DLSEEP,
sleep ? CAP1106_REG_MAIN_CONTROL_DLSEEP : 0);
}
static int cap1106_input_open(struct input_dev *idev)
{
struct cap1106_priv *priv = input_get_drvdata(idev);
return cap1106_set_sleep(priv, false);
}
static void cap1106_input_close(struct input_dev *idev)
{
struct cap1106_priv *priv = input_get_drvdata(idev);
cap1106_set_sleep(priv, true);
}
static int cap1106_i2c_probe(struct i2c_client *i2c_client,
const struct i2c_device_id *id)
{
struct device *dev = &i2c_client->dev;
struct cap1106_priv *priv;
struct device_node *node;
int i, error, irq, gain = 0;
unsigned int val, rev;
u32 gain32, keycodes[CAP1106_NUM_CHN];
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->regmap = devm_regmap_init_i2c(i2c_client, &cap1106_regmap_config);
if (IS_ERR(priv->regmap))
return PTR_ERR(priv->regmap);
error = regmap_read(priv->regmap, CAP1106_REG_PRODUCT_ID, &val);
if (error)
return error;
if (val != CAP1106_PRODUCT_ID) {
dev_err(dev, "Product ID: Got 0x%02x, expected 0x%02x\n",
val, CAP1106_PRODUCT_ID);
return -ENODEV;
}
error = regmap_read(priv->regmap, CAP1106_REG_MANUFACTURER_ID, &val);
if (error)
return error;
if (val != CAP1106_MANUFACTURER_ID) {
dev_err(dev, "Manufacturer ID: Got 0x%02x, expected 0x%02x\n",
val, CAP1106_MANUFACTURER_ID);
return -ENODEV;
}
error = regmap_read(priv->regmap, CAP1106_REG_REVISION, &rev);
if (error < 0)
return error;
dev_info(dev, "CAP1106 detected, revision 0x%02x\n", rev);
i2c_set_clientdata(i2c_client, priv);
node = dev->of_node;
if (!of_property_read_u32(node, "microchip,sensor-gain", &gain32)) {
if (is_power_of_2(gain32) && gain32 <= 8)
gain = ilog2(gain32);
else
dev_err(dev, "Invalid sensor-gain value %d\n", gain32);
}
BUILD_BUG_ON(ARRAY_SIZE(keycodes) != ARRAY_SIZE(priv->keycodes));
/* Provide some useful defaults */
for (i = 0; i < ARRAY_SIZE(keycodes); i++)
keycodes[i] = KEY_A + i;
of_property_read_u32_array(node, "linux,keycodes",
keycodes, ARRAY_SIZE(keycodes));
for (i = 0; i < ARRAY_SIZE(keycodes); i++)
priv->keycodes[i] = keycodes[i];
error = regmap_update_bits(priv->regmap, CAP1106_REG_MAIN_CONTROL,
CAP1106_REG_MAIN_CONTROL_GAIN_MASK,
gain << CAP1106_REG_MAIN_CONTROL_GAIN_SHIFT);
if (error)
return error;
/* Disable autorepeat. The Linux input system has its own handling. */
error = regmap_write(priv->regmap, CAP1106_REG_REPEAT_RATE, 0);
if (error)
return error;
priv->idev = devm_input_allocate_device(dev);
if (!priv->idev)
return -ENOMEM;
priv->idev->name = "CAP1106 capacitive touch sensor";
priv->idev->id.bustype = BUS_I2C;
priv->idev->evbit[0] = BIT_MASK(EV_KEY);
if (of_property_read_bool(node, "autorepeat"))
__set_bit(EV_REP, priv->idev->evbit);
for (i = 0; i < CAP1106_NUM_CHN; i++)
__set_bit(priv->keycodes[i], priv->idev->keybit);
__clear_bit(KEY_RESERVED, priv->idev->keybit);
priv->idev->keycode = priv->keycodes;
priv->idev->keycodesize = sizeof(priv->keycodes[0]);
priv->idev->keycodemax = ARRAY_SIZE(priv->keycodes);
priv->idev->id.vendor = CAP1106_MANUFACTURER_ID;
priv->idev->id.product = CAP1106_PRODUCT_ID;
priv->idev->id.version = rev;
priv->idev->open = cap1106_input_open;
priv->idev->close = cap1106_input_close;
input_set_drvdata(priv->idev, priv);
/*
* Put the device in deep sleep mode for now.
* ->open() will bring it back once the it is actually needed.
*/
cap1106_set_sleep(priv, true);
error = input_register_device(priv->idev);
if (error)
return error;
irq = irq_of_parse_and_map(node, 0);
if (!irq) {
dev_err(dev, "Unable to parse or map IRQ\n");
return -ENXIO;
}
error = devm_request_threaded_irq(dev, irq, NULL, cap1106_thread_func,
IRQF_ONESHOT, dev_name(dev), priv);
if (error)
return error;
return 0;
}
static const struct of_device_id cap1106_dt_ids[] = {
{ .compatible = "microchip,cap1106", },
{}
};
MODULE_DEVICE_TABLE(of, cap1106_dt_ids);
static const struct i2c_device_id cap1106_i2c_ids[] = {
{ "cap1106", 0 },
{}
};
MODULE_DEVICE_TABLE(i2c, cap1106_i2c_ids);
static struct i2c_driver cap1106_i2c_driver = {
.driver = {
.name = "cap1106",
.owner = THIS_MODULE,
.of_match_table = cap1106_dt_ids,
},
.id_table = cap1106_i2c_ids,
.probe = cap1106_i2c_probe,
};
module_i2c_driver(cap1106_i2c_driver);
MODULE_ALIAS("platform:cap1106");
MODULE_DESCRIPTION("Microchip CAP1106 driver");
MODULE_AUTHOR("Daniel Mack <linux@zonque.org>");
MODULE_LICENSE("GPL v2");

376
drivers/input/keyboard/cap11xx.c Normal file
View File

@@ -0,0 +1,376 @@
/*
* Input driver for Microchip CAP11xx based capacitive touch sensors
*
* (c) 2014 Daniel Mack <linux@zonque.org>
*
* 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/kernel.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/of_irq.h>
#include <linux/regmap.h>
#include <linux/i2c.h>
#include <linux/gpio/consumer.h>
#define CAP11XX_REG_MAIN_CONTROL 0x00
#define CAP11XX_REG_MAIN_CONTROL_GAIN_SHIFT (6)
#define CAP11XX_REG_MAIN_CONTROL_GAIN_MASK (0xc0)
#define CAP11XX_REG_MAIN_CONTROL_DLSEEP BIT(4)
#define CAP11XX_REG_GENERAL_STATUS 0x02
#define CAP11XX_REG_SENSOR_INPUT 0x03
#define CAP11XX_REG_NOISE_FLAG_STATUS 0x0a
#define CAP11XX_REG_SENOR_DELTA(X) (0x10 + (X))
#define CAP11XX_REG_SENSITIVITY_CONTROL 0x1f
#define CAP11XX_REG_CONFIG 0x20
#define CAP11XX_REG_SENSOR_ENABLE 0x21
#define CAP11XX_REG_SENSOR_CONFIG 0x22
#define CAP11XX_REG_SENSOR_CONFIG2 0x23
#define CAP11XX_REG_SAMPLING_CONFIG 0x24
#define CAP11XX_REG_CALIBRATION 0x26
#define CAP11XX_REG_INT_ENABLE 0x27
#define CAP11XX_REG_REPEAT_RATE 0x28
#define CAP11XX_REG_MT_CONFIG 0x2a
#define CAP11XX_REG_MT_PATTERN_CONFIG 0x2b
#define CAP11XX_REG_MT_PATTERN 0x2d
#define CAP11XX_REG_RECALIB_CONFIG 0x2f
#define CAP11XX_REG_SENSOR_THRESH(X) (0x30 + (X))
#define CAP11XX_REG_SENSOR_NOISE_THRESH 0x38
#define CAP11XX_REG_STANDBY_CHANNEL 0x40
#define CAP11XX_REG_STANDBY_CONFIG 0x41
#define CAP11XX_REG_STANDBY_SENSITIVITY 0x42
#define CAP11XX_REG_STANDBY_THRESH 0x43
#define CAP11XX_REG_CONFIG2 0x44
#define CAP11XX_REG_CONFIG2_ALT_POL BIT(6)
#define CAP11XX_REG_SENSOR_BASE_CNT(X) (0x50 + (X))
#define CAP11XX_REG_SENSOR_CALIB (0xb1 + (X))
#define CAP11XX_REG_SENSOR_CALIB_LSB1 0xb9
#define CAP11XX_REG_SENSOR_CALIB_LSB2 0xba
#define CAP11XX_REG_PRODUCT_ID 0xfd
#define CAP11XX_REG_MANUFACTURER_ID 0xfe
#define CAP11XX_REG_REVISION 0xff
#define CAP11XX_MANUFACTURER_ID 0x5d
struct cap11xx_priv {
struct regmap *regmap;
struct input_dev *idev;
/* config */
u32 keycodes[];
};
struct cap11xx_hw_model {
u8 product_id;
unsigned int num_channels;
};
enum {
CAP1106,
CAP1126,
CAP1188,
};
static const struct cap11xx_hw_model cap11xx_devices[] = {
[CAP1106] = { .product_id = 0x55, .num_channels = 6 },
[CAP1126] = { .product_id = 0x53, .num_channels = 6 },
[CAP1188] = { .product_id = 0x50, .num_channels = 8 },
};
static const struct reg_default cap11xx_reg_defaults[] = {
{ CAP11XX_REG_MAIN_CONTROL, 0x00 },
{ CAP11XX_REG_GENERAL_STATUS, 0x00 },
{ CAP11XX_REG_SENSOR_INPUT, 0x00 },
{ CAP11XX_REG_NOISE_FLAG_STATUS, 0x00 },
{ CAP11XX_REG_SENSITIVITY_CONTROL, 0x2f },
{ CAP11XX_REG_CONFIG, 0x20 },
{ CAP11XX_REG_SENSOR_ENABLE, 0x3f },
{ CAP11XX_REG_SENSOR_CONFIG, 0xa4 },
{ CAP11XX_REG_SENSOR_CONFIG2, 0x07 },
{ CAP11XX_REG_SAMPLING_CONFIG, 0x39 },
{ CAP11XX_REG_CALIBRATION, 0x00 },
{ CAP11XX_REG_INT_ENABLE, 0x3f },
{ CAP11XX_REG_REPEAT_RATE, 0x3f },
{ CAP11XX_REG_MT_CONFIG, 0x80 },
{ CAP11XX_REG_MT_PATTERN_CONFIG, 0x00 },
{ CAP11XX_REG_MT_PATTERN, 0x3f },
{ CAP11XX_REG_RECALIB_CONFIG, 0x8a },
{ CAP11XX_REG_SENSOR_THRESH(0), 0x40 },
{ CAP11XX_REG_SENSOR_THRESH(1), 0x40 },
{ CAP11XX_REG_SENSOR_THRESH(2), 0x40 },
{ CAP11XX_REG_SENSOR_THRESH(3), 0x40 },
{ CAP11XX_REG_SENSOR_THRESH(4), 0x40 },
{ CAP11XX_REG_SENSOR_THRESH(5), 0x40 },
{ CAP11XX_REG_SENSOR_NOISE_THRESH, 0x01 },
{ CAP11XX_REG_STANDBY_CHANNEL, 0x00 },
{ CAP11XX_REG_STANDBY_CONFIG, 0x39 },
{ CAP11XX_REG_STANDBY_SENSITIVITY, 0x02 },
{ CAP11XX_REG_STANDBY_THRESH, 0x40 },
{ CAP11XX_REG_CONFIG2, 0x40 },
{ CAP11XX_REG_SENSOR_CALIB_LSB1, 0x00 },
{ CAP11XX_REG_SENSOR_CALIB_LSB2, 0x00 },
};
static bool cap11xx_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case CAP11XX_REG_MAIN_CONTROL:
case CAP11XX_REG_SENSOR_INPUT:
case CAP11XX_REG_SENOR_DELTA(0):
case CAP11XX_REG_SENOR_DELTA(1):
case CAP11XX_REG_SENOR_DELTA(2):
case CAP11XX_REG_SENOR_DELTA(3):
case CAP11XX_REG_SENOR_DELTA(4):
case CAP11XX_REG_SENOR_DELTA(5):
case CAP11XX_REG_PRODUCT_ID:
case CAP11XX_REG_MANUFACTURER_ID:
case CAP11XX_REG_REVISION:
return true;
}
return false;
}
static const struct regmap_config cap11xx_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = CAP11XX_REG_REVISION,
.reg_defaults = cap11xx_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(cap11xx_reg_defaults),
.cache_type = REGCACHE_RBTREE,
.volatile_reg = cap11xx_volatile_reg,
};
static irqreturn_t cap11xx_thread_func(int irq_num, void *data)
{
struct cap11xx_priv *priv = data;
unsigned int status;
int ret, i;
/*
* Deassert interrupt. This needs to be done before reading the status
* registers, which will not carry valid values otherwise.
*/
ret = regmap_update_bits(priv->regmap, CAP11XX_REG_MAIN_CONTROL, 1, 0);
if (ret < 0)
goto out;
ret = regmap_read(priv->regmap, CAP11XX_REG_SENSOR_INPUT, &status);
if (ret < 0)
goto out;
for (i = 0; i < priv->idev->keycodemax; i++)
input_report_key(priv->idev, priv->keycodes[i],
status & (1 << i));
input_sync(priv->idev);
out:
return IRQ_HANDLED;
}
static int cap11xx_set_sleep(struct cap11xx_priv *priv, bool sleep)
{
return regmap_update_bits(priv->regmap, CAP11XX_REG_MAIN_CONTROL,
CAP11XX_REG_MAIN_CONTROL_DLSEEP,
sleep ? CAP11XX_REG_MAIN_CONTROL_DLSEEP : 0);
}
static int cap11xx_input_open(struct input_dev *idev)
{
struct cap11xx_priv *priv = input_get_drvdata(idev);
return cap11xx_set_sleep(priv, false);
}
static void cap11xx_input_close(struct input_dev *idev)
{
struct cap11xx_priv *priv = input_get_drvdata(idev);
cap11xx_set_sleep(priv, true);
}
static int cap11xx_i2c_probe(struct i2c_client *i2c_client,
const struct i2c_device_id *id)
{
struct device *dev = &i2c_client->dev;
struct cap11xx_priv *priv;
struct device_node *node;
const struct cap11xx_hw_model *cap;
int i, error, irq, gain = 0;
unsigned int val, rev;
u32 gain32;
if (id->driver_data >= ARRAY_SIZE(cap11xx_devices)) {
dev_err(dev, "Invalid device ID %lu\n", id->driver_data);
return -EINVAL;
}
cap = &cap11xx_devices[id->driver_data];
if (!cap || !cap->num_channels) {
dev_err(dev, "Invalid device configuration\n");
return -EINVAL;
}
priv = devm_kzalloc(dev,
sizeof(*priv) +
cap->num_channels * sizeof(priv->keycodes[0]),
GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->regmap = devm_regmap_init_i2c(i2c_client, &cap11xx_regmap_config);
if (IS_ERR(priv->regmap))
return PTR_ERR(priv->regmap);
error = regmap_read(priv->regmap, CAP11XX_REG_PRODUCT_ID, &val);
if (error)
return error;
if (val != cap->product_id) {
dev_err(dev, "Product ID: Got 0x%02x, expected 0x%02x\n",
val, cap->product_id);
return -ENXIO;
}
error = regmap_read(priv->regmap, CAP11XX_REG_MANUFACTURER_ID, &val);
if (error)
return error;
if (val != CAP11XX_MANUFACTURER_ID) {
dev_err(dev, "Manufacturer ID: Got 0x%02x, expected 0x%02x\n",
val, CAP11XX_MANUFACTURER_ID);
return -ENXIO;
}
error = regmap_read(priv->regmap, CAP11XX_REG_REVISION, &rev);
if (error < 0)
return error;
dev_info(dev, "CAP11XX detected, revision 0x%02x\n", rev);
i2c_set_clientdata(i2c_client, priv);
node = dev->of_node;
if (!of_property_read_u32(node, "microchip,sensor-gain", &gain32)) {
if (is_power_of_2(gain32) && gain32 <= 8)
gain = ilog2(gain32);
else
dev_err(dev, "Invalid sensor-gain value %d\n", gain32);
}
if (of_property_read_bool(node, "microchip,irq-active-high")) {
error = regmap_update_bits(priv->regmap, CAP11XX_REG_CONFIG2,
CAP11XX_REG_CONFIG2_ALT_POL, 0);
if (error)
return error;
}
/* Provide some useful defaults */
for (i = 0; i < cap->num_channels; i++)
priv->keycodes[i] = KEY_A + i;
of_property_read_u32_array(node, "linux,keycodes",
priv->keycodes, cap->num_channels);
error = regmap_update_bits(priv->regmap, CAP11XX_REG_MAIN_CONTROL,
CAP11XX_REG_MAIN_CONTROL_GAIN_MASK,
gain << CAP11XX_REG_MAIN_CONTROL_GAIN_SHIFT);
if (error)
return error;
/* Disable autorepeat. The Linux input system has its own handling. */
error = regmap_write(priv->regmap, CAP11XX_REG_REPEAT_RATE, 0);
if (error)
return error;
priv->idev = devm_input_allocate_device(dev);
if (!priv->idev)
return -ENOMEM;
priv->idev->name = "CAP11XX capacitive touch sensor";
priv->idev->id.bustype = BUS_I2C;
priv->idev->evbit[0] = BIT_MASK(EV_KEY);
if (of_property_read_bool(node, "autorepeat"))
__set_bit(EV_REP, priv->idev->evbit);
for (i = 0; i < cap->num_channels; i++)
__set_bit(priv->keycodes[i], priv->idev->keybit);
__clear_bit(KEY_RESERVED, priv->idev->keybit);
priv->idev->keycode = priv->keycodes;
priv->idev->keycodesize = sizeof(priv->keycodes[0]);
priv->idev->keycodemax = cap->num_channels;
priv->idev->id.vendor = CAP11XX_MANUFACTURER_ID;
priv->idev->id.product = cap->product_id;
priv->idev->id.version = rev;
priv->idev->open = cap11xx_input_open;
priv->idev->close = cap11xx_input_close;
input_set_drvdata(priv->idev, priv);
/*
* Put the device in deep sleep mode for now.
* ->open() will bring it back once the it is actually needed.
*/
cap11xx_set_sleep(priv, true);
error = input_register_device(priv->idev);
if (error)
return error;
irq = irq_of_parse_and_map(node, 0);
if (!irq) {
dev_err(dev, "Unable to parse or map IRQ\n");
return -ENXIO;
}
error = devm_request_threaded_irq(dev, irq, NULL, cap11xx_thread_func,
IRQF_ONESHOT, dev_name(dev), priv);
if (error)
return error;
return 0;
}
static const struct of_device_id cap11xx_dt_ids[] = {
{ .compatible = "microchip,cap1106", },
{ .compatible = "microchip,cap1126", },
{ .compatible = "microchip,cap1188", },
{}
};
MODULE_DEVICE_TABLE(of, cap11xx_dt_ids);
static const struct i2c_device_id cap11xx_i2c_ids[] = {
{ "cap1106", CAP1106 },
{ "cap1126", CAP1126 },
{ "cap1188", CAP1188 },
{}
};
MODULE_DEVICE_TABLE(i2c, cap11xx_i2c_ids);
static struct i2c_driver cap11xx_i2c_driver = {
.driver = {
.name = "cap11xx",
.owner = THIS_MODULE,
.of_match_table = cap11xx_dt_ids,
},
.id_table = cap11xx_i2c_ids,
.probe = cap11xx_i2c_probe,
};
module_i2c_driver(cap11xx_i2c_driver);
MODULE_ALIAS("platform:cap11xx");
MODULE_DESCRIPTION("Microchip CAP11XX driver");
MODULE_AUTHOR("Daniel Mack <linux@zonque.org>");
MODULE_LICENSE("GPL v2");

39
drivers/input/keyboard/gpio_keys.c
View File

@@ -29,6 +29,7 @@
#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 {
@@ -617,27 +618,31 @@ gpio_keys_get_devtree_pdata(struct device *dev)
i = 0;
for_each_child_of_node(node, pp) {
int gpio;
int gpio = -1;
enum of_gpio_flags flags;
if (!of_find_property(pp, "gpios", NULL)) {
pdata->nbuttons--;
dev_warn(dev, "Found button without gpios\n");
continue;
}
gpio = of_get_gpio_flags(pp, 0, &flags);
if (gpio < 0) {
error = gpio;
if (error != -EPROBE_DEFER)
dev_err(dev,
"Failed to get gpio flags, error: %d\n",
error);
return ERR_PTR(error);
}
button = &pdata->buttons[i++];
if (!of_find_property(pp, "gpios", NULL)) {
button->irq = irq_of_parse_and_map(pp, 0);
if (button->irq == 0) {
i--;
pdata->nbuttons--;
dev_warn(dev, "Found button without gpios or irqs\n");
continue;
}
} else {
gpio = of_get_gpio_flags(pp, 0, &flags);
if (gpio < 0) {
error = gpio;
if (error != -EPROBE_DEFER)
dev_err(dev,
"Failed to get gpio flags, error: %d\n",
error);
return ERR_PTR(error);
}
}
button->gpio = gpio;
button->active_low = flags & OF_GPIO_ACTIVE_LOW;

2
drivers/input/keyboard/lm8323.c
View File

@@ -616,6 +616,8 @@ static ssize_t lm8323_set_disable(struct device *dev,
unsigned int i;
ret = kstrtouint(buf, 10, &i);
if (ret)
return ret;
mutex_lock(&lm->lock);
lm->kp_enabled = !i;

92
drivers/input/keyboard/lpc32xx-keys.c
View File

@@ -66,7 +66,6 @@
struct lpc32xx_kscan_drv {
struct input_dev *input;
struct clk *clk;
struct resource *iores;
void __iomem *kscan_base;
unsigned int irq;
@@ -188,32 +187,27 @@ static int lpc32xx_kscan_probe(struct platform_device *pdev)
return -EINVAL;
}
kscandat = kzalloc(sizeof(struct lpc32xx_kscan_drv), GFP_KERNEL);
if (!kscandat) {
dev_err(&pdev->dev, "failed to allocate memory\n");
kscandat = devm_kzalloc(&pdev->dev, sizeof(*kscandat),
GFP_KERNEL);
if (!kscandat)
return -ENOMEM;
}
error = lpc32xx_parse_dt(&pdev->dev, kscandat);
if (error) {
dev_err(&pdev->dev, "failed to parse device tree\n");
goto err_free_mem;
return error;
}
keymap_size = sizeof(kscandat->keymap[0]) *
(kscandat->matrix_sz << kscandat->row_shift);
kscandat->keymap = kzalloc(keymap_size, GFP_KERNEL);
if (!kscandat->keymap) {
dev_err(&pdev->dev, "could not allocate memory for keymap\n");
error = -ENOMEM;
goto err_free_mem;
}
kscandat->keymap = devm_kzalloc(&pdev->dev, keymap_size, GFP_KERNEL);
if (!kscandat->keymap)
return -ENOMEM;
kscandat->input = input = input_allocate_device();
kscandat->input = input = devm_input_allocate_device(&pdev->dev);
if (!input) {
dev_err(&pdev->dev, "failed to allocate input device\n");
error = -ENOMEM;
goto err_free_keymap;
return -ENOMEM;
}
/* Setup key input */
@@ -234,39 +228,26 @@ static int lpc32xx_kscan_probe(struct platform_device *pdev)
kscandat->keymap, kscandat->input);
if (error) {
dev_err(&pdev->dev, "failed to build keymap\n");
goto err_free_input;
return error;
}
input_set_drvdata(kscandat->input, kscandat);
kscandat->iores = request_mem_region(res->start, resource_size(res),
pdev->name);
if (!kscandat->iores) {
dev_err(&pdev->dev, "failed to request I/O memory\n");
error = -EBUSY;
goto err_free_input;
}
kscandat->kscan_base = ioremap(kscandat->iores->start,
resource_size(kscandat->iores));
if (!kscandat->kscan_base) {
dev_err(&pdev->dev, "failed to remap I/O memory\n");
error = -EBUSY;
goto err_release_memregion;
}
kscandat->kscan_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(kscandat->kscan_base))
return PTR_ERR(kscandat->kscan_base);
/* Get the key scanner clock */
kscandat->clk = clk_get(&pdev->dev, NULL);
kscandat->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(kscandat->clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
error = PTR_ERR(kscandat->clk);
goto err_unmap;
return PTR_ERR(kscandat->clk);
}
/* Configure the key scanner */
error = clk_prepare_enable(kscandat->clk);
if (error)
goto err_clk_put;
return error;
writel(kscandat->deb_clks, LPC32XX_KS_DEB(kscandat->kscan_base));
writel(kscandat->scan_delay, LPC32XX_KS_SCAN_CTL(kscandat->kscan_base));
@@ -277,52 +258,20 @@ static int lpc32xx_kscan_probe(struct platform_device *pdev)
writel(1, LPC32XX_KS_IRQ(kscandat->kscan_base));
clk_disable_unprepare(kscandat->clk);
error = request_irq(irq, lpc32xx_kscan_irq, 0, pdev->name, kscandat);
error = devm_request_irq(&pdev->dev, irq, lpc32xx_kscan_irq, 0,
pdev->name, kscandat);
if (error) {
dev_err(&pdev->dev, "failed to request irq\n");
goto err_clk_put;
return error;
}
error = input_register_device(kscandat->input);
if (error) {
dev_err(&pdev->dev, "failed to register input device\n");
goto err_free_irq;
return error;
}
platform_set_drvdata(pdev, kscandat);
return 0;
err_free_irq:
free_irq(irq, kscandat);
err_clk_put:
clk_put(kscandat->clk);
err_unmap:
iounmap(kscandat->kscan_base);
err_release_memregion:
release_mem_region(kscandat->iores->start,
resource_size(kscandat->iores));
err_free_input:
input_free_device(kscandat->input);
err_free_keymap:
kfree(kscandat->keymap);
err_free_mem:
kfree(kscandat);
return error;
}
static int lpc32xx_kscan_remove(struct platform_device *pdev)
{
struct lpc32xx_kscan_drv *kscandat = platform_get_drvdata(pdev);
free_irq(platform_get_irq(pdev, 0), kscandat);
clk_put(kscandat->clk);
iounmap(kscandat->kscan_base);
release_mem_region(kscandat->iores->start,
resource_size(kscandat->iores));
input_unregister_device(kscandat->input);
kfree(kscandat->keymap);
kfree(kscandat);
return 0;
}
@@ -378,7 +327,6 @@ MODULE_DEVICE_TABLE(of, lpc32xx_kscan_match);
static struct platform_driver lpc32xx_kscan_driver = {
.probe = lpc32xx_kscan_probe,
.remove = lpc32xx_kscan_remove,
.driver = {
.name = DRV_NAME,
.pm = &lpc32xx_kscan_pm_ops,

42
drivers/input/keyboard/mpr121_touchkey.c
View File

@@ -214,13 +214,14 @@ static int mpr_touchkey_probe(struct i2c_client *client,
return -EINVAL;
}
mpr121 = kzalloc(sizeof(struct mpr121_touchkey), GFP_KERNEL);
input_dev = input_allocate_device();
if (!mpr121 || !input_dev) {
dev_err(&client->dev, "Failed to allocate memory\n");
error = -ENOMEM;
goto err_free_mem;
}
mpr121 = devm_kzalloc(&client->dev, sizeof(*mpr121),
GFP_KERNEL);
if (!mpr121)
return -ENOMEM;
input_dev = devm_input_allocate_device(&client->dev);
if (!input_dev)
return -ENOMEM;
mpr121->client = client;
mpr121->input_dev = input_dev;
@@ -243,43 +244,25 @@ static int mpr_touchkey_probe(struct i2c_client *client,
error = mpr121_phys_init(pdata, mpr121, client);
if (error) {
dev_err(&client->dev, "Failed to init register\n");
goto err_free_mem;
return error;
}
error = request_threaded_irq(client->irq, NULL,
error = devm_request_threaded_irq(&client->dev, client->irq, NULL,
mpr_touchkey_interrupt,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
client->dev.driver->name, mpr121);
if (error) {
dev_err(&client->dev, "Failed to register interrupt\n");
goto err_free_mem;
return error;
}
error = input_register_device(input_dev);
if (error)
goto err_free_irq;
return error;
i2c_set_clientdata(client, mpr121);
device_init_wakeup(&client->dev, pdata->wakeup);
return 0;
err_free_irq:
free_irq(client->irq, mpr121);
err_free_mem:
input_free_device(input_dev);
kfree(mpr121);
return error;
}
static int mpr_touchkey_remove(struct i2c_client *client)
{
struct mpr121_touchkey *mpr121 = i2c_get_clientdata(client);
free_irq(client->irq, mpr121);
input_unregister_device(mpr121->input_dev);
kfree(mpr121);
return 0;
}
@@ -327,7 +310,6 @@ static struct i2c_driver mpr_touchkey_driver = {
},
.id_table = mpr121_id,
.probe = mpr_touchkey_probe,
.remove = mpr_touchkey_remove,
};
module_i2c_driver(mpr_touchkey_driver);

84
drivers/input/keyboard/pxa27x_keypad.c
View File

@@ -741,37 +741,27 @@ static int pxa27x_keypad_probe(struct platform_device *pdev)
return -ENXIO;
}
keypad = kzalloc(sizeof(struct pxa27x_keypad), GFP_KERNEL);
input_dev = input_allocate_device();
if (!keypad || !input_dev) {
dev_err(&pdev->dev, "failed to allocate memory\n");
error = -ENOMEM;
goto failed_free;
}
keypad = devm_kzalloc(&pdev->dev, sizeof(*keypad),
GFP_KERNEL);
if (!keypad)
return -ENOMEM;
input_dev = devm_input_allocate_device(&pdev->dev);
if (!input_dev)
return -ENOMEM;
keypad->pdata = pdata;
keypad->input_dev = input_dev;
keypad->irq = irq;
res = request_mem_region(res->start, resource_size(res), pdev->name);
if (res == NULL) {
dev_err(&pdev->dev, "failed to request I/O memory\n");
error = -EBUSY;
goto failed_free;
}
keypad->mmio_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(keypad->mmio_base))
return PTR_ERR(keypad->mmio_base);
keypad->mmio_base = ioremap(res->start, resource_size(res));
if (keypad->mmio_base == NULL) {
dev_err(&pdev->dev, "failed to remap I/O memory\n");
error = -ENXIO;
goto failed_free_mem;
}
keypad->clk = clk_get(&pdev->dev, NULL);
keypad->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(keypad->clk)) {
dev_err(&pdev->dev, "failed to get keypad clock\n");
error = PTR_ERR(keypad->clk);
goto failed_free_io;
return PTR_ERR(keypad->clk);
}
input_dev->name = pdev->name;
@@ -802,7 +792,7 @@ static int pxa27x_keypad_probe(struct platform_device *pdev)
}
if (error) {
dev_err(&pdev->dev, "failed to build keycode\n");
goto failed_put_clk;
return error;
}
keypad->row_shift = get_count_order(pdata->matrix_key_cols);
@@ -812,61 +802,26 @@ static int pxa27x_keypad_probe(struct platform_device *pdev)
input_dev->evbit[0] |= BIT_MASK(EV_REL);
}
error = request_irq(irq, pxa27x_keypad_irq_handler, 0,
pdev->name, keypad);
error = devm_request_irq(&pdev->dev, irq, pxa27x_keypad_irq_handler,
0, pdev->name, keypad);
if (error) {
dev_err(&pdev->dev, "failed to request IRQ\n");
goto failed_put_clk;
return error;
}
/* Register the input device */
error = input_register_device(input_dev);
if (error) {
dev_err(&pdev->dev, "failed to register input device\n");
goto failed_free_irq;
return error;
}
platform_set_drvdata(pdev, keypad);
device_init_wakeup(&pdev->dev, 1);
return 0;
failed_free_irq:
free_irq(irq, keypad);
failed_put_clk:
clk_put(keypad->clk);
failed_free_io:
iounmap(keypad->mmio_base);
failed_free_mem:
release_mem_region(res->start, resource_size(res));
failed_free:
input_free_device(input_dev);
kfree(keypad);
return error;
}
static int pxa27x_keypad_remove(struct platform_device *pdev)
{
struct pxa27x_keypad *keypad = platform_get_drvdata(pdev);
struct resource *res;
free_irq(keypad->irq, keypad);
clk_put(keypad->clk);
input_unregister_device(keypad->input_dev);
iounmap(keypad->mmio_base);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(res->start, resource_size(res));
kfree(keypad);
return 0;
}
/* work with hotplug and coldplug */
MODULE_ALIAS("platform:pxa27x-keypad");
#ifdef CONFIG_OF
static const struct of_device_id pxa27x_keypad_dt_match[] = {
{ .compatible = "marvell,pxa27x-keypad" },
@@ -877,7 +832,6 @@ MODULE_DEVICE_TABLE(of, pxa27x_keypad_dt_match);
static struct platform_driver pxa27x_keypad_driver = {
.probe = pxa27x_keypad_probe,
.remove = pxa27x_keypad_remove,
.driver = {
.name = "pxa27x-keypad",
.of_match_table = of_match_ptr(pxa27x_keypad_dt_match),
@@ -888,3 +842,5 @@ module_platform_driver(pxa27x_keypad_driver);
MODULE_DESCRIPTION("PXA27x Keypad Controller Driver");
MODULE_LICENSE("GPL");
/* work with hotplug and coldplug */
MODULE_ALIAS("platform:pxa27x-keypad");

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