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powerpc: mpc52xx_gpt: 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: Anatolij Gustschin <agust@denx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-08 14:49:42 +01:00
parent ca27379f5d
commit e99190cea3
1 changed files with 5 additions and 10 deletions
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15
arch/powerpc/platforms/52xx/mpc52xx_gpt.c
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@ -278,14 +278,9 @@ mpc52xx_gpt_irq_setup(struct mpc52xx_gpt_priv *gpt, struct device_node *node)
* GPIOLIB hooks
*/
#if defined(CONFIG_GPIOLIB)
static inline struct mpc52xx_gpt_priv *gc_to_mpc52xx_gpt(struct gpio_chip *gc)
{
return container_of(gc, struct mpc52xx_gpt_priv, gc);
}
static int mpc52xx_gpt_gpio_get(struct gpio_chip *gc, unsigned int gpio)
{
struct mpc52xx_gpt_priv *gpt = gc_to_mpc52xx_gpt(gc);
struct mpc52xx_gpt_priv *gpt = gpiochip_get_data(gc);
return (in_be32(&gpt->regs->status) >> 8) & 1;
}
@ -293,7 +288,7 @@ static int mpc52xx_gpt_gpio_get(struct gpio_chip *gc, unsigned int gpio)
static void
mpc52xx_gpt_gpio_set(struct gpio_chip *gc, unsigned int gpio, int v)
{
struct mpc52xx_gpt_priv *gpt = gc_to_mpc52xx_gpt(gc);
struct mpc52xx_gpt_priv *gpt = gpiochip_get_data(gc);
unsigned long flags;
u32 r;
@ -307,7 +302,7 @@ mpc52xx_gpt_gpio_set(struct gpio_chip *gc, unsigned int gpio, int v)
static int mpc52xx_gpt_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
{
struct mpc52xx_gpt_priv *gpt = gc_to_mpc52xx_gpt(gc);
struct mpc52xx_gpt_priv *gpt = gpiochip_get_data(gc);
unsigned long flags;
dev_dbg(gpt->dev, "%s: gpio:%d\n", __func__, gpio);
@ -354,9 +349,9 @@ mpc52xx_gpt_gpio_setup(struct mpc52xx_gpt_priv *gpt, struct device_node *node)
clrsetbits_be32(&gpt->regs->mode, MPC52xx_GPT_MODE_MS_MASK,
MPC52xx_GPT_MODE_MS_GPIO);
rc = gpiochip_add(&gpt->gc);
rc = gpiochip_add_data(&gpt->gc, gpt);
if (rc)
dev_err(gpt->dev, "gpiochip_add() failed; rc=%i\n", rc);
dev_err(gpt->dev, "gpiochip_add_data() failed; rc=%i\n", rc);
dev_dbg(gpt->dev, "%s() complete.\n", __func__);
}