gpio: rdc321x: 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-rdc321x.c b/drivers/gpio/gpio-rdc321x.c
index d729bc8..96ddee3 100644
--- a/drivers/gpio/gpio-rdc321x.c
+++ b/drivers/gpio/gpio-rdc321x.c
@@ -47,7 +47,7 @@
u32 value = 0;
int reg;
- gpch = container_of(chip, struct rdc321x_gpio, chip);
+ gpch = gpiochip_get_data(chip);
reg = gpio < 32 ? gpch->reg1_data_base : gpch->reg2_data_base;
spin_lock(&gpch->lock);
@@ -65,7 +65,7 @@
struct rdc321x_gpio *gpch;
int reg = (gpio < 32) ? 0 : 1;
- gpch = container_of(chip, struct rdc321x_gpio, chip);
+ gpch = gpiochip_get_data(chip);
if (value)
gpch->data_reg[reg] |= 1 << (gpio & 0x1f);
@@ -83,7 +83,7 @@
{
struct rdc321x_gpio *gpch;
- gpch = container_of(chip, struct rdc321x_gpio, chip);
+ gpch = gpiochip_get_data(chip);
spin_lock(&gpch->lock);
rdc_gpio_set_value_impl(chip, gpio, value);
spin_unlock(&gpch->lock);
@@ -96,7 +96,7 @@
int err;
u32 reg;
- gpch = container_of(chip, struct rdc321x_gpio, chip);
+ gpch = gpiochip_get_data(chip);
spin_lock(&gpch->lock);
err = pci_read_config_dword(gpch->sb_pdev, gpio < 32 ?
@@ -194,7 +194,7 @@
dev_info(&pdev->dev, "registering %d GPIOs\n",
rdc321x_gpio_dev->chip.ngpio);
- return gpiochip_add(&rdc321x_gpio_dev->chip);
+ return gpiochip_add_data(&rdc321x_gpio_dev->chip, rdc321x_gpio_dev);
}
static int rdc321x_gpio_remove(struct platform_device *pdev)