gpio: adp5520: 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().

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-adp5520.c b/drivers/gpio/gpio-adp5520.c
index caff711ca5a9a6abbb30cea56da0f80e5c6496d2..4fa7ff1fec9ae870a5d45ccbd01a2f3f5fcb3f44 100644 (file)
--- a/drivers/gpio/gpio-adp5520.c
+++ b/drivers/gpio/gpio-adp5520.c
@@ -27,7 +27,7 @@ static int adp5520_gpio_get_value(struct gpio_chip *chip, unsigned off)
        struct adp5520_gpio *dev;
        uint8_t reg_val;
 
-       dev = container_of(chip, struct adp5520_gpio, gpio_chip);
+       dev = gpiochip_get_data(chip);
 
        /*
         * There are dedicated registers for GPIO IN/OUT.
@@ -46,7 +46,7 @@ static void adp5520_gpio_set_value(struct gpio_chip *chip,
                unsigned off, int val)
 {
        struct adp5520_gpio *dev;
-       dev = container_of(chip, struct adp5520_gpio, gpio_chip);
+       dev = gpiochip_get_data(chip);
 
        if (val)
                adp5520_set_bits(dev->master, ADP5520_GPIO_OUT, dev->lut[off]);
@@ -57,7 +57,7 @@ static void adp5520_gpio_set_value(struct gpio_chip *chip,
 static int adp5520_gpio_direction_input(struct gpio_chip *chip, unsigned off)
 {
        struct adp5520_gpio *dev;
-       dev = container_of(chip, struct adp5520_gpio, gpio_chip);
+       dev = gpiochip_get_data(chip);
 
        clear_bit(off, &dev->output);
 
@@ -70,7 +70,7 @@ static int adp5520_gpio_direction_output(struct gpio_chip *chip,
 {
        struct adp5520_gpio *dev;
        int ret = 0;
-       dev = container_of(chip, struct adp5520_gpio, gpio_chip);
+       dev = gpiochip_get_data(chip);
 
        set_bit(off, &dev->output);
 
@@ -153,7 +153,7 @@ static int adp5520_gpio_probe(struct platform_device *pdev)
                goto err;
        }
 
-       ret = gpiochip_add(&dev->gpio_chip);
+       ret = gpiochip_add_data(&dev->gpio_chip, dev);
        if (ret)
                goto err;