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gpio: spear-spics: 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: Shiraz Hashim <shiraz.linux.kernel@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-07 14:26:58 +01:00
parent 8ca7f1fab8
commit c0ad184adb
1 changed files with 4 additions and 7 deletions
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11
drivers/gpio/gpio-spear-spics.c
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@ -62,8 +62,7 @@ static int spics_get_value(struct gpio_chip *chip, unsigned offset)
static void spics_set_value(struct gpio_chip *chip, unsigned offset, int value)
{
struct spear_spics *spics = container_of(chip, struct spear_spics,
chip);
struct spear_spics *spics = gpiochip_get_data(chip);
u32 tmp;
/* select chip select from register */
@ -94,8 +93,7 @@ static int spics_direction_output(struct gpio_chip *chip, unsigned offset,
static int spics_request(struct gpio_chip *chip, unsigned offset)
{
struct spear_spics *spics = container_of(chip, struct spear_spics,
chip);
struct spear_spics *spics = gpiochip_get_data(chip);
u32 tmp;
if (!spics->use_count++) {
@ -110,8 +108,7 @@ static int spics_request(struct gpio_chip *chip, unsigned offset)
static void spics_free(struct gpio_chip *chip, unsigned offset)
{
struct spear_spics *spics = container_of(chip, struct spear_spics,
chip);
struct spear_spics *spics = gpiochip_get_data(chip);
u32 tmp;
if (!--spics->use_count) {
@ -168,7 +165,7 @@ static int spics_gpio_probe(struct platform_device *pdev)
spics->chip.owner = THIS_MODULE;
spics->last_off = -1;
ret = gpiochip_add(&spics->chip);
ret = gpiochip_add_data(&spics->chip, spics);
if (ret) {
dev_err(&pdev->dev, "unable to add gpio chip\n");
return ret;