gpio: da9055: 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: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-da9055.c b/drivers/gpio/gpio-da9055.c
index 7227e6e..18210fb 100644 (file)
--- a/drivers/gpio/gpio-da9055.c
+++ b/drivers/gpio/gpio-da9055.c
@@ -35,14 +35,9 @@ struct da9055_gpio {
        struct gpio_chip gp;
 };
 
-static inline struct da9055_gpio *to_da9055_gpio(struct gpio_chip *chip)
-{
-       return container_of(chip, struct da9055_gpio, gp);
-}
-
 static int da9055_gpio_get(struct gpio_chip *gc, unsigned offset)
 {
-       struct da9055_gpio *gpio = to_da9055_gpio(gc);
+       struct da9055_gpio *gpio = gpiochip_get_data(gc);
        int gpio_direction = 0;
        int ret;
 
@@ -71,7 +66,7 @@ static int da9055_gpio_get(struct gpio_chip *gc, unsigned offset)
 
 static void da9055_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
 {
-       struct da9055_gpio *gpio = to_da9055_gpio(gc);
+       struct da9055_gpio *gpio = gpiochip_get_data(gc);
 
        da9055_reg_update(gpio->da9055,
                        DA9055_REG_GPIO_MODE0_2,
@@ -81,7 +76,7 @@ static void da9055_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
 
 static int da9055_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
 {
-       struct da9055_gpio *gpio = to_da9055_gpio(gc);
+       struct da9055_gpio *gpio = gpiochip_get_data(gc);
        unsigned char reg_byte;
 
        reg_byte = (DA9055_ACT_LOW | DA9055_GPI)
@@ -97,7 +92,7 @@ static int da9055_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
 static int da9055_gpio_direction_output(struct gpio_chip *gc,
                                        unsigned offset, int value)
 {
-       struct da9055_gpio *gpio = to_da9055_gpio(gc);
+       struct da9055_gpio *gpio = gpiochip_get_data(gc);
        unsigned char reg_byte;
        int ret;
 
@@ -119,7 +114,7 @@ static int da9055_gpio_direction_output(struct gpio_chip *gc,
 
 static int da9055_gpio_to_irq(struct gpio_chip *gc, u32 offset)
 {
-       struct da9055_gpio *gpio = to_da9055_gpio(gc);
+       struct da9055_gpio *gpio = gpiochip_get_data(gc);
        struct da9055 *da9055 = gpio->da9055;
 
        return regmap_irq_get_virq(da9055->irq_data,
@@ -156,7 +151,7 @@ static int da9055_gpio_probe(struct platform_device *pdev)
        if (pdata && pdata->gpio_base)
                gpio->gp.base = pdata->gpio_base;
 
-       ret = gpiochip_add(&gpio->gp);
+       ret = gpiochip_add_data(&gpio->gp, gpio);
        if (ret < 0) {
                dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
                goto err_mem;