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ASoC: ac97: 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().

Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: alsa-devel@alsa-project.org
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-08 23:48:29 +01:00
parent c2aea142af
commit f7cb5120c4
1 changed files with 3 additions and 5 deletions
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8
sound/soc/soc-ac97.c
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@ -59,8 +59,7 @@ static void soc_ac97_device_release(struct device *dev)
#ifdef CONFIG_GPIOLIB
static inline struct snd_soc_codec *gpio_to_codec(struct gpio_chip *chip)
{
struct snd_ac97_gpio_priv *gpio_priv =
container_of(chip, struct snd_ac97_gpio_priv, gpio_chip);
struct snd_ac97_gpio_priv *gpio_priv = gpiochip_get_data(chip);
return gpio_priv->codec;
}
@ -98,8 +97,7 @@ static int snd_soc_ac97_gpio_get(struct gpio_chip *chip, unsigned offset)
static void snd_soc_ac97_gpio_set(struct gpio_chip *chip, unsigned offset,
int value)
{
struct snd_ac97_gpio_priv *gpio_priv =
container_of(chip, struct snd_ac97_gpio_priv, gpio_chip);
struct snd_ac97_gpio_priv *gpio_priv = gpiochip_get_data(chip);
struct snd_soc_codec *codec = gpio_to_codec(chip);
gpio_priv->gpios_set &= ~(1 << offset);
@ -145,7 +143,7 @@ static int snd_soc_ac97_init_gpio(struct snd_ac97 *ac97,
gpio_priv->gpio_chip.parent = codec->dev;
gpio_priv->gpio_chip.base = -1;
ret = gpiochip_add(&gpio_priv->gpio_chip);
ret = gpiochip_add_data(&gpio_priv->gpio_chip, gpio_priv);
if (ret != 0)
dev_err(codec->dev, "Failed to add GPIOs: %d\n", ret);
return ret;