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gpio: 104-idi-48: 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().

Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-03 15:31:48 +01:00
parent 0f4630f372
commit 1f36bec53f
1 changed files with 4 additions and 9 deletions
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13
drivers/gpio/gpio-104-idi-48.c
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@ -64,14 +64,9 @@ static int idi_48_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
return 0;
}
static struct idi_48_gpio *to_idi48gpio(struct gpio_chip *gc)
{
return container_of(gc, struct idi_48_gpio, chip);
}
static int idi_48_gpio_get(struct gpio_chip *chip, unsigned offset)
{
struct idi_48_gpio *const idi48gpio = to_idi48gpio(chip);
struct idi_48_gpio *const idi48gpio = gpiochip_get_data(chip);
unsigned i;
const unsigned register_offset[6] = { 0, 1, 2, 4, 5, 6 };
unsigned base_offset;
@ -96,7 +91,7 @@ static void idi_48_irq_ack(struct irq_data *data)
static void idi_48_irq_mask(struct irq_data *data)
{
struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
struct idi_48_gpio *const idi48gpio = to_idi48gpio(chip);
struct idi_48_gpio *const idi48gpio = gpiochip_get_data(chip);
const unsigned offset = irqd_to_hwirq(data);
unsigned i;
unsigned mask;
@ -127,7 +122,7 @@ static void idi_48_irq_mask(struct irq_data *data)
static void idi_48_irq_unmask(struct irq_data *data)
{
struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
struct idi_48_gpio *const idi48gpio = to_idi48gpio(chip);
struct idi_48_gpio *const idi48gpio = gpiochip_get_data(chip);
const unsigned offset = irqd_to_hwirq(data);
unsigned i;
unsigned mask;
@ -255,7 +250,7 @@ static int __init idi_48_probe(struct platform_device *pdev)
dev_set_drvdata(dev, idi48gpio);
err = gpiochip_add(&idi48gpio->chip);
err = gpiochip_add_data(&idi48gpio->chip, idi48gpio);
if (err) {
dev_err(dev, "GPIO registering failed (%d)\n", err);
goto err_gpio_register;