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mfd: htc-i2cpld: 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().

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Linus Walleij 2016-03-30 10:48:04 +02:00 committed by Lee Jones
parent 8d5f095fc5
commit ed1c9b3c18
1 changed files with 5 additions and 10 deletions
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15
drivers/mfd/htc-i2cpld.c
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@ -227,8 +227,7 @@ static irqreturn_t htcpld_handler(int irq, void *dev)
static void htcpld_chip_set(struct gpio_chip *chip, unsigned offset, int val)
{
struct i2c_client *client;
struct htcpld_chip *chip_data =
container_of(chip, struct htcpld_chip, chip_out);
struct htcpld_chip *chip_data = gpiochip_get_data(chip);
unsigned long flags;
client = chip_data->client;
@ -257,14 +256,12 @@ static void htcpld_chip_set_ni(struct work_struct *work)
static int htcpld_chip_get(struct gpio_chip *chip, unsigned offset)
{
struct htcpld_chip *chip_data;
struct htcpld_chip *chip_data = gpiochip_get_data(chip);
u8 cache;
if (!strncmp(chip->label, "htcpld-out", 10)) {
chip_data = container_of(chip, struct htcpld_chip, chip_out);
cache = chip_data->cache_out;
} else if (!strncmp(chip->label, "htcpld-in", 9)) {
chip_data = container_of(chip, struct htcpld_chip, chip_in);
cache = chip_data->cache_in;
} else
return -EINVAL;
@ -291,9 +288,7 @@ static int htcpld_direction_input(struct gpio_chip *chip,
static int htcpld_chip_to_irq(struct gpio_chip *chip, unsigned offset)
{
struct htcpld_chip *chip_data;
chip_data = container_of(chip, struct htcpld_chip, chip_in);
struct htcpld_chip *chip_data = gpiochip_get_data(chip);
if (offset < chip_data->nirqs)
return chip_data->irq_start + offset;
@ -451,14 +446,14 @@ static int htcpld_register_chip_gpio(
gpio_chip->ngpio = plat_chip_data->num_gpios;
/* Add the GPIO chips */
ret = gpiochip_add(&(chip->chip_out));
ret = gpiochip_add_data(&(chip->chip_out), chip);
if (ret) {
dev_warn(dev, "Unable to register output GPIOs for 0x%x: %d\n",
plat_chip_data->addr, ret);
return ret;
}
ret = gpiochip_add(&(chip->chip_in));
ret = gpiochip_add_data(&(chip->chip_in), chip);
if (ret) {
dev_warn(dev, "Unable to register input GPIOs for 0x%x: %d\n",
plat_chip_data->addr, ret);