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Commit 597358e4 authored by Linus Walleij's avatar Linus Walleij
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gpio: pcf857x: 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().

Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: George Cherian <george.cherian@ti.com>
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 468e67f6

drivers/gpio/gpio-pcf857x.c

+4 −4
Original line number Diff line number Diff line
@@ -137,7 +137,7 @@ static int i2c_read_le16(struct i2c_client *client) 


static int pcf857x_input(struct gpio_chip *chip, unsigned offset)

{

	struct pcf857x	*gpio = container_of(chip, struct pcf857x, chip);

	struct pcf857x	*gpio = gpiochip_get_data(chip);

	int		status;



	mutex_lock(&gpio->lock);
@@ -150,7 +150,7 @@ static int pcf857x_input(struct gpio_chip *chip, unsigned offset) 


static int pcf857x_get(struct gpio_chip *chip, unsigned offset)

{

	struct pcf857x	*gpio = container_of(chip, struct pcf857x, chip);

	struct pcf857x	*gpio = gpiochip_get_data(chip);

	int		value;



	value = gpio->read(gpio->client);
@@ -159,7 +159,7 @@ static int pcf857x_get(struct gpio_chip *chip, unsigned offset) 


static int pcf857x_output(struct gpio_chip *chip, unsigned offset, int value)

{

	struct pcf857x	*gpio = container_of(chip, struct pcf857x, chip);

	struct pcf857x	*gpio = gpiochip_get_data(chip);

	unsigned	bit = 1 << offset;

	int		status;
@@ -372,7 +372,7 @@ static int pcf857x_probe(struct i2c_client *client, 
	gpio->out = ~n_latch;

	gpio->status = gpio->out;



	status = gpiochip_add(&gpio->chip);

	status = gpiochip_add_data(&gpio->chip, gpio);

	if (status < 0)

		goto fail;