diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-02-06 18:42:14 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-02-06 19:06:18 +0000 |
| commit | 27060b3c64a1b9bc0b60c27da6153cf78919fa72 (patch) | |
| tree | 1fb4a555be479d1b4d052248aea406bdc11c2f05 /sound/soc/codecs/wm8994.c | |
| parent | 5fab517476ad1e4af0043a7b8dd0bd4cdc58df9d (diff) | |
ASoC: wm8994: Unsuspend the device while reading GPIO statuses
Otherwise we might get an error if the GPIO is configured as an input
since that makes the register volatile and a suspended device can't be
read from.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/codecs/wm8994.c')
| -rw-r--r-- | sound/soc/codecs/wm8994.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index 6b12f5da6b7..6a47c75119b 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c @@ -3539,6 +3539,9 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec) wm8994->fll_locked_irq = false; } + /* Make sure we can read from the GPIOs if they're inputs */ + pm_runtime_get_sync(codec->dev); + /* Remember if AIFnLRCLK is configured as a GPIO. This should be * configured on init - if a system wants to do this dynamically * at runtime we can deal with that then. @@ -3567,6 +3570,8 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec) wm8994->lrclk_shared[1] = 0; } + pm_runtime_put(codec->dev); + /* Latch volume updates (right only; we always do left then right). */ snd_soc_update_bits(codec, WM8994_AIF1_DAC1_LEFT_VOLUME, WM8994_AIF1DAC1_VU, WM8994_AIF1DAC1_VU); |