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gpio: altera: 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: Tien Hock Loh <thloh@altera.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
Linus Walleij 2015-12-04 15:16:43 +01:00
parent f69255ce67
commit 397d0773a9
1 changed files with 9 additions and 14 deletions
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23
drivers/gpio/gpio-altera.c
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@ -42,11 +42,6 @@ struct altera_gpio_chip {
int mapped_irq;
};
static struct altera_gpio_chip *to_altera(struct gpio_chip *gc)
{
return container_of(gc, struct altera_gpio_chip, mmchip.gc);
}
static void altera_gpio_irq_unmask(struct irq_data *d)
{
struct altera_gpio_chip *altera_gc;
@ -54,7 +49,7 @@ static void altera_gpio_irq_unmask(struct irq_data *d)
unsigned long flags;
u32 intmask;
altera_gc = to_altera(irq_data_get_irq_chip_data(d));
altera_gc = gpiochip_get_data(irq_data_get_irq_chip_data(d));
mm_gc = &altera_gc->mmchip;
spin_lock_irqsave(&altera_gc->gpio_lock, flags);
@ -72,7 +67,7 @@ static void altera_gpio_irq_mask(struct irq_data *d)
unsigned long flags;
u32 intmask;
altera_gc = to_altera(irq_data_get_irq_chip_data(d));
altera_gc = gpiochip_get_data(irq_data_get_irq_chip_data(d));
mm_gc = &altera_gc->mmchip;
spin_lock_irqsave(&altera_gc->gpio_lock, flags);
@ -92,7 +87,7 @@ static int altera_gpio_irq_set_type(struct irq_data *d,
{
struct altera_gpio_chip *altera_gc;
altera_gc = to_altera(irq_data_get_irq_chip_data(d));
altera_gc = gpiochip_get_data(irq_data_get_irq_chip_data(d));
if (type == IRQ_TYPE_NONE)
return 0;
@ -145,7 +140,7 @@ static void altera_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
unsigned int data_reg;
mm_gc = to_of_mm_gpio_chip(gc);
chip = container_of(mm_gc, struct altera_gpio_chip, mmchip);
chip = gpiochip_get_data(gc);
spin_lock_irqsave(&chip->gpio_lock, flags);
data_reg = readl(mm_gc->regs + ALTERA_GPIO_DATA);
@ -165,7 +160,7 @@ static int altera_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
unsigned int gpio_ddr;
mm_gc = to_of_mm_gpio_chip(gc);
chip = container_of(mm_gc, struct altera_gpio_chip, mmchip);
chip = gpiochip_get_data(gc);
spin_lock_irqsave(&chip->gpio_lock, flags);
/* Set pin as input, assumes software controlled IP */
@ -186,7 +181,7 @@ static int altera_gpio_direction_output(struct gpio_chip *gc,
unsigned int data_reg, gpio_ddr;
mm_gc = to_of_mm_gpio_chip(gc);
chip = container_of(mm_gc, struct altera_gpio_chip, mmchip);
chip = gpiochip_get_data(gc);
spin_lock_irqsave(&chip->gpio_lock, flags);
/* Sets the GPIO value */
@ -215,7 +210,7 @@ static void altera_gpio_irq_edge_handler(struct irq_desc *desc)
unsigned long status;
int i;
altera_gc = to_altera(irq_desc_get_handler_data(desc));
altera_gc = gpiochip_get_data(irq_desc_get_handler_data(desc));
chip = irq_desc_get_chip(desc);
mm_gc = &altera_gc->mmchip;
irqdomain = altera_gc->mmchip.gc.irqdomain;
@ -244,7 +239,7 @@ static void altera_gpio_irq_leveL_high_handler(struct irq_desc *desc)
unsigned long status;
int i;
altera_gc = to_altera(irq_desc_get_handler_data(desc));
altera_gc = gpiochip_get_data(irq_desc_get_handler_data(desc));
chip = irq_desc_get_chip(desc);
mm_gc = &altera_gc->mmchip;
irqdomain = altera_gc->mmchip.gc.irqdomain;
@ -292,7 +287,7 @@ static int altera_gpio_probe(struct platform_device *pdev)
altera_gc->mmchip.gc.owner = THIS_MODULE;
altera_gc->mmchip.gc.parent = &pdev->dev;
ret = of_mm_gpiochip_add(node, &altera_gc->mmchip);
ret = of_mm_gpiochip_add_data(node, &altera_gc->mmchip, altera_gc);
if (ret) {
dev_err(&pdev->dev, "Failed adding memory mapped gpiochip\n");
return ret;