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gpio: mm-lantiq: use gpiochip data pointer

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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: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Cc: John Crispin <blogic@openwrt.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-07 10:19:29 +01:00
parent 47315578b9
commit 6aa7dbfa28
1 changed files with 3 additions and 6 deletions
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9
drivers/gpio/gpio-mm-lantiq.c
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@ -61,9 +61,7 @@ static void ltq_mm_apply(struct ltq_mm *chip)
*/
static void ltq_mm_set(struct gpio_chip *gc, unsigned offset, int value)
{
struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
struct ltq_mm *chip =
container_of(mm_gc, struct ltq_mm, mmchip);
struct ltq_mm *chip = gpiochip_get_data(gc);
if (value)
chip->shadow |= (1 << offset);
@ -93,8 +91,7 @@ static int ltq_mm_dir_out(struct gpio_chip *gc, unsigned offset, int value)
*/
static void ltq_mm_save_regs(struct of_mm_gpio_chip *mm_gc)
{
struct ltq_mm *chip =
container_of(mm_gc, struct ltq_mm, mmchip);
struct ltq_mm *chip = gpiochip_get_data(&mm_gc->gc);
/* tell the ebu controller which memory address we will be using */
ltq_ebu_w32(CPHYSADDR(chip->mmchip.regs) | 0x1, LTQ_EBU_ADDRSEL1);
@ -122,7 +119,7 @@ static int ltq_mm_probe(struct platform_device *pdev)
if (!of_property_read_u32(pdev->dev.of_node, "lantiq,shadow", &shadow))
chip->shadow = shadow;
return of_mm_gpiochip_add(pdev->dev.of_node, &chip->mmchip);
return of_mm_gpiochip_add_data(pdev->dev.of_node, &chip->mmchip, chip);
}
static int ltq_mm_remove(struct platform_device *pdev)