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gpio: stp-xway: 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().

Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-07 14:34:33 +01:00
parent b03c04a0aa
commit c63b30b089
1 changed files with 3 additions and 5 deletions
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8
drivers/gpio/gpio-stp-xway.c
View file

@ -100,8 +100,7 @@ struct xway_stp {
*/
static void xway_stp_set(struct gpio_chip *gc, unsigned gpio, int val)
{
struct xway_stp *chip =
container_of(gc, struct xway_stp, gc);
struct xway_stp *chip = gpiochip_get_data(gc);
if (val)
chip->shadow |= BIT(gpio);
@ -135,8 +134,7 @@ static int xway_stp_dir_out(struct gpio_chip *gc, unsigned gpio, int val)
*/
static int xway_stp_request(struct gpio_chip *gc, unsigned gpio)
{
struct xway_stp *chip =
container_of(gc, struct xway_stp, gc);
struct xway_stp *chip = gpiochip_get_data(gc);
if ((gpio < 8) && (chip->reserved & BIT(gpio))) {
dev_err(gc->parent, "GPIO %d is driven by hardware\n", gpio);
@ -260,7 +258,7 @@ static int xway_stp_probe(struct platform_device *pdev)
ret = xway_stp_hw_init(chip);
if (!ret)
ret = gpiochip_add(&chip->gc);
ret = gpiochip_add_data(&chip->gc, chip);
if (!ret)
dev_info(&pdev->dev, "Init done\n");