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gpio: kempld: 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: Brunner Michael <Michael.Brunner@kontron.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-07 09:06:22 +01:00
parent 0a38fd94c2
commit 1f89bccd7f
1 changed files with 6 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/gpio/gpio-kempld.c
View File

@ -65,8 +65,7 @@ static int kempld_gpio_get_bit(struct kempld_device_data *pld, u8 reg, u8 bit)
static int kempld_gpio_get(struct gpio_chip *chip, unsigned offset)
{
struct kempld_gpio_data *gpio
= container_of(chip, struct kempld_gpio_data, chip);
struct kempld_gpio_data *gpio = gpiochip_get_data(chip);
struct kempld_device_data *pld = gpio->pld;
return !!kempld_gpio_get_bit(pld, KEMPLD_GPIO_LVL_NUM(offset), offset);
@ -74,8 +73,7 @@ static int kempld_gpio_get(struct gpio_chip *chip, unsigned offset)
static void kempld_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
struct kempld_gpio_data *gpio
= container_of(chip, struct kempld_gpio_data, chip);
struct kempld_gpio_data *gpio = gpiochip_get_data(chip);
struct kempld_device_data *pld = gpio->pld;
kempld_get_mutex(pld);
@ -85,8 +83,7 @@ static void kempld_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
static int kempld_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
{
struct kempld_gpio_data *gpio
= container_of(chip, struct kempld_gpio_data, chip);
struct kempld_gpio_data *gpio = gpiochip_get_data(chip);
struct kempld_device_data *pld = gpio->pld;
kempld_get_mutex(pld);
@ -99,8 +96,7 @@ static int kempld_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
static int kempld_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
int value)
{
struct kempld_gpio_data *gpio
= container_of(chip, struct kempld_gpio_data, chip);
struct kempld_gpio_data *gpio = gpiochip_get_data(chip);
struct kempld_device_data *pld = gpio->pld;
kempld_get_mutex(pld);
@ -113,8 +109,7 @@ static int kempld_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
static int kempld_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
{
struct kempld_gpio_data *gpio
= container_of(chip, struct kempld_gpio_data, chip);
struct kempld_gpio_data *gpio = gpiochip_get_data(chip);
struct kempld_device_data *pld = gpio->pld;
return !kempld_gpio_get_bit(pld, KEMPLD_GPIO_DIR_NUM(offset), offset);
@ -183,7 +178,7 @@ static int kempld_gpio_probe(struct platform_device *pdev)
return -ENODEV;
}
ret = gpiochip_add(chip);
ret = gpiochip_add_data(chip, gpio);
if (ret) {
dev_err(dev, "Could not register GPIO chip\n");
return ret;