ASoC: tegra+wm8903: simplify gpio tests in widget callbacks

By the time any widget callbacks could be called, if the GPIO ID they
will manipulate is valid, it must have already been requested, or the
card would have failed to probe or initialize. So, testing for GPIO
validity is equivalent to testing whether the GPIO was successfully
requested at this point in the code. Making this change will allow later
patches to remove the gpio_requested variable.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/tegra/tegra_wm8903.c b/sound/soc/tegra/tegra_wm8903.c
index 9059525f3b08d55ba7dc6a11bb0e9662e7848eed..1fd6a41b9162f6d743a1606c42a3edb6be25ea0d 100644 (file)
--- a/sound/soc/tegra/tegra_wm8903.c
+++ b/sound/soc/tegra/tegra_wm8903.c
@@ -153,7 +153,7 @@ static int tegra_wm8903_event_int_spk(struct snd_soc_dapm_widget *w,
        struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
        struct tegra_wm8903_platform_data *pdata = &machine->pdata;
 
-       if (!(machine->gpio_requested & GPIO_SPKR_EN))
+       if (!gpio_is_valid(pdata->gpio_spkr_en))
                return 0;
 
        gpio_set_value_cansleep(pdata->gpio_spkr_en,
@@ -170,7 +170,7 @@ static int tegra_wm8903_event_hp(struct snd_soc_dapm_widget *w,
        struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
        struct tegra_wm8903_platform_data *pdata = &machine->pdata;
 
-       if (!(machine->gpio_requested & GPIO_HP_MUTE))
+       if (!gpio_is_valid(pdata->gpio_hp_mute))
                return 0;
 
        gpio_set_value_cansleep(pdata->gpio_hp_mute,