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Commit d9478044 authored by Linus Walleij's avatar Linus Walleij
Browse files

input: ad7879: use gpiochip data pointer 



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: default avatarMichael Hennerich <michael.hennerich@analog.com>
Acked-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 839850f4

drivers/input/touchscreen/ad7879.c

+5 −5
Original line number Diff line number Diff line
@@ -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);