gpio: max730x: 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: Roland Stigge <stigge@antcom.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpio-max730x.c b/drivers/gpio/gpio-max730x.c
index 5d6a723..0880736 100644
--- a/drivers/gpio/gpio-max730x.c
+++ b/drivers/gpio/gpio-max730x.c
@@ -50,7 +50,7 @@
static int max7301_direction_input(struct gpio_chip *chip, unsigned offset)
{
- struct max7301 *ts = container_of(chip, struct max7301, chip);
+ struct max7301 *ts = gpiochip_get_data(chip);
u8 *config;
u8 offset_bits, pin_config;
int ret;
@@ -92,7 +92,7 @@
static int max7301_direction_output(struct gpio_chip *chip, unsigned offset,
int value)
{
- struct max7301 *ts = container_of(chip, struct max7301, chip);
+ struct max7301 *ts = gpiochip_get_data(chip);
u8 *config;
u8 offset_bits;
int ret;
@@ -120,7 +120,7 @@
static int max7301_get(struct gpio_chip *chip, unsigned offset)
{
- struct max7301 *ts = container_of(chip, struct max7301, chip);
+ struct max7301 *ts = gpiochip_get_data(chip);
int config, level = -EINVAL;
/* First 4 pins are unused in the controller */
@@ -148,7 +148,7 @@
static void max7301_set(struct gpio_chip *chip, unsigned offset, int value)
{
- struct max7301 *ts = container_of(chip, struct max7301, chip);
+ struct max7301 *ts = gpiochip_get_data(chip);
/* First 4 pins are unused in the controller */
offset += 4;
@@ -213,7 +213,7 @@
}
}
- ret = gpiochip_add(&ts->chip);
+ ret = gpiochip_add_data(&ts->chip, ts);
if (ret)
goto exit_destroy;
