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input: ad7879: use gpiochip data pointer

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This makes the driver use the data pointer added to the gpio_chip
to store a pointer to the state container instead of relying on
container_of().

Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-08 16:35:27 +01:00
parent 839850f4fb
commit d94780444b
1 changed files with 5 additions and 5 deletions
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10
drivers/input/touchscreen/ad7879.c
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@ -379,7 +379,7 @@ static const struct attribute_group ad7879_attr_group = {
static int ad7879_gpio_direction_input(struct gpio_chip *chip,
unsigned gpio)
{
struct ad7879 *ts = container_of(chip, struct ad7879, gc);
struct ad7879 *ts = gpiochip_get_data(chip);
int err;
mutex_lock(&ts->mutex);
@ -393,7 +393,7 @@ static int ad7879_gpio_direction_input(struct gpio_chip *chip,
static int ad7879_gpio_direction_output(struct gpio_chip *chip,
unsigned gpio, int level)
{
struct ad7879 *ts = container_of(chip, struct ad7879, gc);
struct ad7879 *ts = gpiochip_get_data(chip);
int err;
mutex_lock(&ts->mutex);
@ -412,7 +412,7 @@ static int ad7879_gpio_direction_output(struct gpio_chip *chip,
static int ad7879_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
{
struct ad7879 *ts = container_of(chip, struct ad7879, gc);
struct ad7879 *ts = gpiochip_get_data(chip);
u16 val;
mutex_lock(&ts->mutex);
@ -425,7 +425,7 @@ static int ad7879_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
static void ad7879_gpio_set_value(struct gpio_chip *chip,
unsigned gpio, int value)
{
struct ad7879 *ts = container_of(chip, struct ad7879, gc);
struct ad7879 *ts = gpiochip_get_data(chip);
mutex_lock(&ts->mutex);
if (value)
@ -456,7 +456,7 @@ static int ad7879_gpio_add(struct ad7879 *ts,
ts->gc.owner = THIS_MODULE;
ts->gc.parent = ts->dev;
ret = gpiochip_add(&ts->gc);
ret = gpiochip_add_data(&ts->gc, ts);
if (ret)
dev_err(ts->dev, "failed to register gpio %d\n",
ts->gc.base);