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authorLinus Walleij <linus.walleij@linaro.org>2015-12-07 15:20:17 +0100
committerLinus Walleij <linus.walleij@linaro.org>2016-01-05 11:21:19 +0100
commit097d88e94c44112327011f572c7fff82a44c1d54 (patch)
tree31cfa1dc536eb10c0b947b545d496ecb12185f2b /drivers/gpio
parentac9dc85eeaf2e8f19a1846979c4dc700d4fb54dc (diff)
gpio: xilinx: 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: Michal Simek <michal.simek@xilinx.com> Cc: Sören Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-xilinx.c17
1 files changed, 6 insertions, 11 deletions
diff --git a/drivers/gpio/gpio-xilinx.c b/drivers/gpio/gpio-xilinx.c
index 5c2971e1cb08..3345ab0ba1b3 100644
--- a/drivers/gpio/gpio-xilinx.c
+++ b/drivers/gpio/gpio-xilinx.c
@@ -92,8 +92,7 @@ static inline int xgpio_offset(struct xgpio_instance *chip, int gpio)
static int xgpio_get(struct gpio_chip *gc, unsigned int gpio)
{
struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct xgpio_instance *chip =
- container_of(mm_gc, struct xgpio_instance, mmchip);
+ struct xgpio_instance *chip = gpiochip_get_data(gc);
u32 val;
val = xgpio_readreg(mm_gc->regs + XGPIO_DATA_OFFSET +
@@ -115,8 +114,7 @@ static void xgpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
{
unsigned long flags;
struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct xgpio_instance *chip =
- container_of(mm_gc, struct xgpio_instance, mmchip);
+ struct xgpio_instance *chip = gpiochip_get_data(gc);
int index = xgpio_index(chip, gpio);
int offset = xgpio_offset(chip, gpio);
@@ -147,8 +145,7 @@ static int xgpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
{
unsigned long flags;
struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct xgpio_instance *chip =
- container_of(mm_gc, struct xgpio_instance, mmchip);
+ struct xgpio_instance *chip = gpiochip_get_data(gc);
int index = xgpio_index(chip, gpio);
int offset = xgpio_offset(chip, gpio);
@@ -180,8 +177,7 @@ static int xgpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
{
unsigned long flags;
struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct xgpio_instance *chip =
- container_of(mm_gc, struct xgpio_instance, mmchip);
+ struct xgpio_instance *chip = gpiochip_get_data(gc);
int index = xgpio_index(chip, gpio);
int offset = xgpio_offset(chip, gpio);
@@ -211,8 +207,7 @@ static int xgpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
*/
static void xgpio_save_regs(struct of_mm_gpio_chip *mm_gc)
{
- struct xgpio_instance *chip =
- container_of(mm_gc, struct xgpio_instance, mmchip);
+ struct xgpio_instance *chip = gpiochip_get_data(&mm_gc->gc);
xgpio_writereg(mm_gc->regs + XGPIO_DATA_OFFSET, chip->gpio_state[0]);
xgpio_writereg(mm_gc->regs + XGPIO_TRI_OFFSET, chip->gpio_dir[0]);
@@ -314,7 +309,7 @@ static int xgpio_probe(struct platform_device *pdev)
chip->mmchip.save_regs = xgpio_save_regs;
/* Call the OF gpio helper to setup and register the GPIO device */
- status = of_mm_gpiochip_add(np, &chip->mmchip);
+ status = of_mm_gpiochip_add_data(np, &chip->mmchip, chip);
if (status) {
pr_err("%s: error in probe function with status %d\n",
np->full_name, status);