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video: fbdev: via: 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: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-08 23:20:57 +01:00
parent 166814d841
commit 11680af7c8
1 changed files with 6 additions and 11 deletions
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17
drivers/video/fbdev/via/via-gpio.c
View file

@ -6,7 +6,7 @@
*/
#include <linux/spinlock.h>
#include <linux/gpio.h>
#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
#include <linux/via-core.h>
#include <linux/via-gpio.h>
@ -83,9 +83,7 @@ struct viafb_gpio_cfg {
static void via_gpio_set(struct gpio_chip *chip, unsigned int nr,
int value)
{
struct viafb_gpio_cfg *cfg = container_of(chip,
struct viafb_gpio_cfg,
gpio_chip);
struct viafb_gpio_cfg *cfg = gpiochip_get_data(chip);
u8 reg;
struct viafb_gpio *gpio;
unsigned long flags;
@ -115,9 +113,7 @@ static int via_gpio_dir_out(struct gpio_chip *chip, unsigned int nr,
*/
static int via_gpio_dir_input(struct gpio_chip *chip, unsigned int nr)
{
struct viafb_gpio_cfg *cfg = container_of(chip,
struct viafb_gpio_cfg,
gpio_chip);
struct viafb_gpio_cfg *cfg = gpiochip_get_data(chip);
struct viafb_gpio *gpio;
unsigned long flags;
@ -131,9 +127,7 @@ static int via_gpio_dir_input(struct gpio_chip *chip, unsigned int nr)
static int via_gpio_get(struct gpio_chip *chip, unsigned int nr)
{
struct viafb_gpio_cfg *cfg = container_of(chip,
struct viafb_gpio_cfg,
gpio_chip);
struct viafb_gpio_cfg *cfg = gpiochip_get_data(chip);
u8 reg;
struct viafb_gpio *gpio;
unsigned long flags;
@ -255,7 +249,8 @@ static int viafb_gpio_probe(struct platform_device *platdev)
* Get registered.
*/
viafb_gpio_config.gpio_chip.base = -1; /* Dynamic */
ret = gpiochip_add(&viafb_gpio_config.gpio_chip);
ret = gpiochip_add_data(&viafb_gpio_config.gpio_chip,
&viafb_gpio_config);
if (ret) {
printk(KERN_ERR "viafb: failed to add gpios (%d)\n", ret);
viafb_gpio_config.gpio_chip.ngpio = 0;