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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-03-02 15:47:55 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-03-04 13:56:23 +0800 |
| commit | dd194b48465ba9c4eef7f16a4815b7761a8172ce (patch) | |
| tree | 5b3f5bdc09977e9a4566eab5ad5d24fe10424278 /sound | |
| parent | 4f224c612438e0c2067594636c6998ce5048d228 (diff) | |
| download | blackbird-op-linux-dd194b48465ba9c4eef7f16a4815b7761a8172ce.tar.gz blackbird-op-linux-dd194b48465ba9c4eef7f16a4815b7761a8172ce.zip | |
ASoC: omap: Check regulator enable for DAC on Pandora
This will probably never fail but it's better style.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/omap/omap3pandora.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sound/soc/omap/omap3pandora.c b/sound/soc/omap/omap3pandora.c index 805512f2555a..10ced9d2e0de 100644 --- a/sound/soc/omap/omap3pandora.c +++ b/sound/soc/omap/omap3pandora.c @@ -80,12 +80,18 @@ static int omap3pandora_hw_params(struct snd_pcm_substream *substream, static int omap3pandora_dac_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { + int ret; + /* * The PCM1773 DAC datasheet requires 1ms delay between switching * VCC power on/off and /PD pin high/low */ if (SND_SOC_DAPM_EVENT_ON(event)) { - regulator_enable(omap3pandora_dac_reg); + ret = regulator_enable(omap3pandora_dac_reg); + if (ret) { + dev_err(w->dapm.dev, "Failed to power DAC: %d\n", ret); + return ret; + } mdelay(1); gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 1); } else { |
