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gpio: intel-mid: 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: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
Linus Walleij 2015-12-06 10:55:28 +01:00
parent f372d5f59c
commit 5c77c0212b
1 changed files with 7 additions and 12 deletions
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19
drivers/gpio/gpio-intel-mid.c
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@ -78,15 +78,10 @@ struct intel_mid_gpio {
struct pci_dev *pdev;
};
static inline struct intel_mid_gpio *to_intel_gpio_priv(struct gpio_chip *gc)
{
return container_of(gc, struct intel_mid_gpio, chip);
}
static void __iomem *gpio_reg(struct gpio_chip *chip, unsigned offset,
enum GPIO_REG reg_type)
{
struct intel_mid_gpio *priv = to_intel_gpio_priv(chip);
struct intel_mid_gpio *priv = gpiochip_get_data(chip);
unsigned nreg = chip->ngpio / 32;
u8 reg = offset / 32;
@ -96,7 +91,7 @@ static void __iomem *gpio_reg(struct gpio_chip *chip, unsigned offset,
static void __iomem *gpio_reg_2bit(struct gpio_chip *chip, unsigned offset,
enum GPIO_REG reg_type)
{
struct intel_mid_gpio *priv = to_intel_gpio_priv(chip);
struct intel_mid_gpio *priv = gpiochip_get_data(chip);
unsigned nreg = chip->ngpio / 32;
u8 reg = offset / 16;
@ -138,7 +133,7 @@ static void intel_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
static int intel_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
{
struct intel_mid_gpio *priv = to_intel_gpio_priv(chip);
struct intel_mid_gpio *priv = gpiochip_get_data(chip);
void __iomem *gpdr = gpio_reg(chip, offset, GPDR);
u32 value;
unsigned long flags;
@ -161,7 +156,7 @@ static int intel_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
static int intel_gpio_direction_output(struct gpio_chip *chip,
unsigned offset, int value)
{
struct intel_mid_gpio *priv = to_intel_gpio_priv(chip);
struct intel_mid_gpio *priv = gpiochip_get_data(chip);
void __iomem *gpdr = gpio_reg(chip, offset, GPDR);
unsigned long flags;
@ -185,7 +180,7 @@ static int intel_gpio_direction_output(struct gpio_chip *chip,
static int intel_mid_irq_type(struct irq_data *d, unsigned type)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct intel_mid_gpio *priv = to_intel_gpio_priv(gc);
struct intel_mid_gpio *priv = gpiochip_get_data(gc);
u32 gpio = irqd_to_hwirq(d);
unsigned long flags;
u32 value;
@ -304,7 +299,7 @@ MODULE_DEVICE_TABLE(pci, intel_gpio_ids);
static void intel_mid_irq_handler(struct irq_desc *desc)
{
struct gpio_chip *gc = irq_desc_get_handler_data(desc);
struct intel_mid_gpio *priv = to_intel_gpio_priv(gc);
struct intel_mid_gpio *priv = gpiochip_get_data(gc);
struct irq_data *data = irq_desc_get_irq_data(desc);
struct irq_chip *chip = irq_data_get_irq_chip(data);
u32 base, gpio, mask;
@ -406,7 +401,7 @@ static int intel_gpio_probe(struct pci_dev *pdev,
spin_lock_init(&priv->lock);
pci_set_drvdata(pdev, priv);
retval = gpiochip_add(&priv->chip);
retval = gpiochip_add_data(&priv->chip, priv);
if (retval) {
dev_err(&pdev->dev, "gpiochip_add error %d\n", retval);
return retval;