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gpio: davinci: 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: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-04 16:25:04 +01:00
parent 552dd7959c
commit 72a1ca2cb9
1 changed files with 6 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/gpio/gpio-davinci.c
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@ -41,9 +41,6 @@ typedef struct irq_chip *(*gpio_get_irq_chip_cb_t)(unsigned int irq);
#define BINTEN 0x8 /* GPIO Interrupt Per-Bank Enable Register */
#define chip2controller(chip) \
container_of(chip, struct davinci_gpio_controller, chip)
static void __iomem *gpio_base;
static struct davinci_gpio_regs __iomem *gpio2regs(unsigned gpio)
@ -82,7 +79,7 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev);
static inline int __davinci_direction(struct gpio_chip *chip,
unsigned offset, bool out, int value)
{
struct davinci_gpio_controller *d = chip2controller(chip);
struct davinci_gpio_controller *d = gpiochip_get_data(chip);
struct davinci_gpio_regs __iomem *g = d->regs;
unsigned long flags;
u32 temp;
@ -122,7 +119,7 @@ davinci_direction_out(struct gpio_chip *chip, unsigned offset, int value)
*/
static int davinci_gpio_get(struct gpio_chip *chip, unsigned offset)
{
struct davinci_gpio_controller *d = chip2controller(chip);
struct davinci_gpio_controller *d = gpiochip_get_data(chip);
struct davinci_gpio_regs __iomem *g = d->regs;
return !!((1 << offset) & readl_relaxed(&g->in_data));
@ -134,7 +131,7 @@ static int davinci_gpio_get(struct gpio_chip *chip, unsigned offset)
static void
davinci_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
struct davinci_gpio_controller *d = chip2controller(chip);
struct davinci_gpio_controller *d = gpiochip_get_data(chip);
struct davinci_gpio_regs __iomem *g = d->regs;
writel_relaxed((1 << offset), value ? &g->set_data : &g->clr_data);
@ -265,7 +262,7 @@ static int davinci_gpio_probe(struct platform_device *pdev)
chips[i].clr_data = &regs->clr_data;
chips[i].in_data = &regs->in_data;
gpiochip_add(&chips[i].chip);
gpiochip_add_data(&chips[i].chip, &chips[i]);
}
platform_set_drvdata(pdev, chips);
@ -368,7 +365,7 @@ static void gpio_irq_handler(struct irq_desc *desc)
static int gpio_to_irq_banked(struct gpio_chip *chip, unsigned offset)
{
struct davinci_gpio_controller *d = chip2controller(chip);
struct davinci_gpio_controller *d = gpiochip_get_data(chip);
if (d->irq_domain)
return irq_create_mapping(d->irq_domain, d->chip.base + offset);
@ -378,7 +375,7 @@ static int gpio_to_irq_banked(struct gpio_chip *chip, unsigned offset)
static int gpio_to_irq_unbanked(struct gpio_chip *chip, unsigned offset)
{
struct davinci_gpio_controller *d = chip2controller(chip);
struct davinci_gpio_controller *d = gpiochip_get_data(chip);
/*
* NOTE: we assume for now that only irqs in the first gpio_chip