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leds: pca9532: 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: Riku Voipio <riku.voipio@iki.fi>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: linux-leds@vger.kernel.org
Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-08 16:39:20 +01:00
parent 2a66434370
commit dced146758
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/leds/leds-pca9532.c
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@ -245,7 +245,7 @@ static void pca9532_led_work(struct work_struct *work)
#ifdef CONFIG_LEDS_PCA9532_GPIO
static int pca9532_gpio_request_pin(struct gpio_chip *gc, unsigned offset)
{
struct pca9532_data *data = container_of(gc, struct pca9532_data, gpio);
struct pca9532_data *data = gpiochip_get_data(gc);
struct pca9532_led *led = &data->leds[offset];
if (led->type == PCA9532_TYPE_GPIO)
@ -256,7 +256,7 @@ static int pca9532_gpio_request_pin(struct gpio_chip *gc, unsigned offset)
static void pca9532_gpio_set_value(struct gpio_chip *gc, unsigned offset, int val)
{
struct pca9532_data *data = container_of(gc, struct pca9532_data, gpio);
struct pca9532_data *data = gpiochip_get_data(gc);
struct pca9532_led *led = &data->leds[offset];
if (val)
@ -269,7 +269,7 @@ static void pca9532_gpio_set_value(struct gpio_chip *gc, unsigned offset, int va
static int pca9532_gpio_get_value(struct gpio_chip *gc, unsigned offset)
{
struct pca9532_data *data = container_of(gc, struct pca9532_data, gpio);
struct pca9532_data *data = gpiochip_get_data(gc);
unsigned char reg;
reg = i2c_smbus_read_byte_data(data->client, PCA9532_REG_INPUT(offset));
@ -416,7 +416,7 @@ static int pca9532_configure(struct i2c_client *client,
data->gpio.parent = &client->dev;
data->gpio.owner = THIS_MODULE;
err = gpiochip_add(&data->gpio);
err = gpiochip_add_data(&data->gpio, data);
if (err) {
/* Use data->gpio.dev as a flag for freeing gpiochip */
data->gpio.parent = NULL;