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gpio: mpc8xxx: 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: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
Linus Walleij 2015-12-07 10:34:28 +01:00
parent 837c2705a3
commit 709d71a17c
1 changed files with 8 additions and 15 deletions
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23
drivers/gpio/gpio-mpc8xxx.c
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@ -49,15 +49,9 @@ static inline u32 mpc8xxx_gpio2mask(unsigned int gpio)
return 1u << (MPC8XXX_GPIO_PINS - 1 - gpio);
}
static inline struct mpc8xxx_gpio_chip *
to_mpc8xxx_gpio_chip(struct of_mm_gpio_chip *mm)
{
return container_of(mm, struct mpc8xxx_gpio_chip, mm_gc);
}
static void mpc8xxx_gpio_save_regs(struct of_mm_gpio_chip *mm)
{
struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm);
struct mpc8xxx_gpio_chip *mpc8xxx_gc = gpiochip_get_data(&mm->gc);
mpc8xxx_gc->data = in_be32(mm->regs + GPIO_DAT);
}
@ -71,7 +65,7 @@ static int mpc8572_gpio_get(struct gpio_chip *gc, unsigned int gpio)
{
u32 val;
struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc);
struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm);
struct mpc8xxx_gpio_chip *mpc8xxx_gc = gpiochip_get_data(gc);
u32 out_mask, out_shadow;
out_mask = in_be32(mm->regs + GPIO_DIR);
@ -92,7 +86,7 @@ static int mpc8xxx_gpio_get(struct gpio_chip *gc, unsigned int gpio)
static void mpc8xxx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
{
struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc);
struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm);
struct mpc8xxx_gpio_chip *mpc8xxx_gc = gpiochip_get_data(gc);
unsigned long flags;
raw_spin_lock_irqsave(&mpc8xxx_gc->lock, flags);
@ -111,7 +105,7 @@ static void mpc8xxx_gpio_set_multiple(struct gpio_chip *gc,
unsigned long *mask, unsigned long *bits)
{
struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc);
struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm);
struct mpc8xxx_gpio_chip *mpc8xxx_gc = gpiochip_get_data(gc);
unsigned long flags;
int i;
@ -136,7 +130,7 @@ static void mpc8xxx_gpio_set_multiple(struct gpio_chip *gc,
static int mpc8xxx_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
{
struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc);
struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm);
struct mpc8xxx_gpio_chip *mpc8xxx_gc = gpiochip_get_data(gc);
unsigned long flags;
raw_spin_lock_irqsave(&mpc8xxx_gc->lock, flags);
@ -151,7 +145,7 @@ static int mpc8xxx_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
static int mpc8xxx_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
{
struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc);
struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm);
struct mpc8xxx_gpio_chip *mpc8xxx_gc = gpiochip_get_data(gc);
unsigned long flags;
mpc8xxx_gpio_set(gc, gpio, val);
@ -185,8 +179,7 @@ static int mpc5125_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val
static int mpc8xxx_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc);
struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm);
struct mpc8xxx_gpio_chip *mpc8xxx_gc = gpiochip_get_data(gc);
if (mpc8xxx_gc->irq && offset < MPC8XXX_GPIO_PINS)
return irq_create_mapping(mpc8xxx_gc->irq, offset);
@ -417,7 +410,7 @@ static int mpc8xxx_probe(struct platform_device *pdev)
gc->set_multiple = mpc8xxx_gpio_set_multiple;
gc->to_irq = mpc8xxx_gpio_to_irq;
ret = of_mm_gpiochip_add(np, mm_gc);
ret = of_mm_gpiochip_add_data(np, mm_gc, mpc8xxx_gc);
if (ret)
return ret;