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ASoC: tegra+wm8903: Use devm_gpio_request_one

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By using this function, the driver no longer needs to explicitly free
the GPIOs. Hence, we can also remove the flags we use to track whether
we allocated these GPIOs.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Stephen Warren 2012-05-22 16:08:55 -06:00 committed by Mark Brown
parent f51022f1ae
commit e2d287c179
1 changed files with 10 additions and 32 deletions
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42
sound/soc/tegra/tegra_wm8903.c
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@ -50,10 +50,6 @@
#define DRV_NAME "tegra-snd-wm8903"
#define GPIO_SPKR_EN BIT(0)
#define GPIO_HP_MUTE BIT(1)
#define GPIO_INT_MIC_EN BIT(2)
#define GPIO_EXT_MIC_EN BIT(3)
#define GPIO_HP_DET BIT(4)
struct tegra_wm8903 {
@ -401,49 +397,41 @@ static __devinit int tegra_wm8903_driver_probe(struct platform_device *pdev)
}
if (gpio_is_valid(pdata->gpio_spkr_en)) {
ret = gpio_request(pdata->gpio_spkr_en, "spkr_en");
ret = devm_gpio_request_one(&pdev->dev, pdata->gpio_spkr_en,
GPIOF_OUT_INIT_LOW, "spkr_en");
if (ret) {
dev_err(card->dev, "cannot get spkr_en gpio\n");
return ret;
}
machine->gpio_requested |= GPIO_SPKR_EN;
gpio_direction_output(pdata->gpio_spkr_en, 0);
}
if (gpio_is_valid(pdata->gpio_hp_mute)) {
ret = gpio_request(pdata->gpio_hp_mute, "hp_mute");
ret = devm_gpio_request_one(&pdev->dev, pdata->gpio_hp_mute,
GPIOF_OUT_INIT_HIGH, "hp_mute");
if (ret) {
dev_err(card->dev, "cannot get hp_mute gpio\n");
return ret;
}
machine->gpio_requested |= GPIO_HP_MUTE;
gpio_direction_output(pdata->gpio_hp_mute, 1);
}
if (gpio_is_valid(pdata->gpio_int_mic_en)) {
ret = gpio_request(pdata->gpio_int_mic_en, "int_mic_en");
/* Disable int mic; enable signal is active-high */
ret = devm_gpio_request_one(&pdev->dev, pdata->gpio_int_mic_en,
GPIOF_OUT_INIT_LOW, "int_mic_en");
if (ret) {
dev_err(card->dev, "cannot get int_mic_en gpio\n");
return ret;
}
machine->gpio_requested |= GPIO_INT_MIC_EN;
/* Disable int mic; enable signal is active-high */
gpio_direction_output(pdata->gpio_int_mic_en, 0);
}
if (gpio_is_valid(pdata->gpio_ext_mic_en)) {
ret = gpio_request(pdata->gpio_ext_mic_en, "ext_mic_en");
/* Enable ext mic; enable signal is active-low */
ret = devm_gpio_request_one(&pdev->dev, pdata->gpio_ext_mic_en,
GPIOF_OUT_INIT_LOW, "ext_mic_en");
if (ret) {
dev_err(card->dev, "cannot get ext_mic_en gpio\n");
return ret;
}
machine->gpio_requested |= GPIO_EXT_MIC_EN;
/* Enable ext mic; enable signal is active-low */
gpio_direction_output(pdata->gpio_ext_mic_en, 0);
}
ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
@ -469,21 +457,11 @@ static int __devexit tegra_wm8903_driver_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
struct tegra_wm8903_platform_data *pdata = &machine->pdata;
if (machine->gpio_requested & GPIO_HP_DET)
snd_soc_jack_free_gpios(&tegra_wm8903_hp_jack,
1,
&tegra_wm8903_hp_jack_gpio);
if (machine->gpio_requested & GPIO_EXT_MIC_EN)
gpio_free(pdata->gpio_ext_mic_en);
if (machine->gpio_requested & GPIO_INT_MIC_EN)
gpio_free(pdata->gpio_int_mic_en);
if (machine->gpio_requested & GPIO_HP_MUTE)
gpio_free(pdata->gpio_hp_mute);
if (machine->gpio_requested & GPIO_SPKR_EN)
gpio_free(pdata->gpio_spkr_en);
machine->gpio_requested = 0;
snd_soc_unregister_card(card);