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gpio: rcar: 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: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-07 14:12:45 +01:00
parent d660c68eb5
commit c7b6f457cb
1 changed files with 12 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
drivers/gpio/gpio-rcar.c
View File

@ -84,8 +84,7 @@ static void gpio_rcar_modify_bit(struct gpio_rcar_priv *p, int offs,
static void gpio_rcar_irq_disable(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct gpio_rcar_priv *p = container_of(gc, struct gpio_rcar_priv,
gpio_chip);
struct gpio_rcar_priv *p = gpiochip_get_data(gc);
gpio_rcar_write(p, INTMSK, ~BIT(irqd_to_hwirq(d)));
}
@ -93,8 +92,7 @@ static void gpio_rcar_irq_disable(struct irq_data *d)
static void gpio_rcar_irq_enable(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct gpio_rcar_priv *p = container_of(gc, struct gpio_rcar_priv,
gpio_chip);
struct gpio_rcar_priv *p = gpiochip_get_data(gc);
gpio_rcar_write(p, MSKCLR, BIT(irqd_to_hwirq(d)));
}
@ -137,8 +135,7 @@ static void gpio_rcar_config_interrupt_input_mode(struct gpio_rcar_priv *p,
static int gpio_rcar_irq_set_type(struct irq_data *d, unsigned int type)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct gpio_rcar_priv *p = container_of(gc, struct gpio_rcar_priv,
gpio_chip);
struct gpio_rcar_priv *p = gpiochip_get_data(gc);
unsigned int hwirq = irqd_to_hwirq(d);
dev_dbg(&p->pdev->dev, "sense irq = %d, type = %d\n", hwirq, type);
@ -175,8 +172,7 @@ static int gpio_rcar_irq_set_type(struct irq_data *d, unsigned int type)
static int gpio_rcar_irq_set_wake(struct irq_data *d, unsigned int on)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct gpio_rcar_priv *p = container_of(gc, struct gpio_rcar_priv,
gpio_chip);
struct gpio_rcar_priv *p = gpiochip_get_data(gc);
int error;
if (p->irq_parent) {
@ -218,16 +214,11 @@ static irqreturn_t gpio_rcar_irq_handler(int irq, void *dev_id)
return irqs_handled ? IRQ_HANDLED : IRQ_NONE;
}
static inline struct gpio_rcar_priv *gpio_to_priv(struct gpio_chip *chip)
{
return container_of(chip, struct gpio_rcar_priv, gpio_chip);
}
static void gpio_rcar_config_general_input_output_mode(struct gpio_chip *chip,
unsigned int gpio,
bool output)
{
struct gpio_rcar_priv *p = gpio_to_priv(chip);
struct gpio_rcar_priv *p = gpiochip_get_data(chip);
unsigned long flags;
/* follow steps in the GPIO documentation for
@ -251,7 +242,7 @@ static void gpio_rcar_config_general_input_output_mode(struct gpio_chip *chip,
static int gpio_rcar_request(struct gpio_chip *chip, unsigned offset)
{
struct gpio_rcar_priv *p = gpio_to_priv(chip);
struct gpio_rcar_priv *p = gpiochip_get_data(chip);
int error;
error = pm_runtime_get_sync(&p->pdev->dev);
@ -267,7 +258,7 @@ static int gpio_rcar_request(struct gpio_chip *chip, unsigned offset)
static void gpio_rcar_free(struct gpio_chip *chip, unsigned offset)
{
struct gpio_rcar_priv *p = gpio_to_priv(chip);
struct gpio_rcar_priv *p = gpiochip_get_data(chip);
pinctrl_free_gpio(chip->base + offset);
@ -291,15 +282,15 @@ static int gpio_rcar_get(struct gpio_chip *chip, unsigned offset)
/* testing on r8a7790 shows that INDT does not show correct pin state
* when configured as output, so use OUTDT in case of output pins */
if (gpio_rcar_read(gpio_to_priv(chip), INOUTSEL) & bit)
return !!(gpio_rcar_read(gpio_to_priv(chip), OUTDT) & bit);
if (gpio_rcar_read(gpiochip_get_data(chip), INOUTSEL) & bit)
return !!(gpio_rcar_read(gpiochip_get_data(chip), OUTDT) & bit);
else
return !!(gpio_rcar_read(gpio_to_priv(chip), INDT) & bit);
return !!(gpio_rcar_read(gpiochip_get_data(chip), INDT) & bit);
}
static void gpio_rcar_set(struct gpio_chip *chip, unsigned offset, int value)
{
struct gpio_rcar_priv *p = gpio_to_priv(chip);
struct gpio_rcar_priv *p = gpiochip_get_data(chip);
unsigned long flags;
spin_lock_irqsave(&p->lock, flags);
@ -461,7 +452,7 @@ static int gpio_rcar_probe(struct platform_device *pdev)
irq_chip->irq_set_wake = gpio_rcar_irq_set_wake;
irq_chip->flags = IRQCHIP_SET_TYPE_MASKED | IRQCHIP_MASK_ON_SUSPEND;
ret = gpiochip_add(gpio_chip);
ret = gpiochip_add_data(gpio_chip, p);
if (ret) {
dev_err(dev, "failed to add GPIO controller\n");
goto err0;