ASoC: wm8804: Enable runtime PM
Currently both the oscillator and the PLL are powered up in
set_bias_level. This can be problematic when using output clocks from
the wm8804 for other devices. The snd_soc_codec_set_pll API defines that
a clock should be available once the call returns, however, with all the
clocking controlled in set_bias_level this is not currently the case.
This patch enables pm_runtime for the wm8804, enabling both the
regulators and the oscillator when the chip resumes, and enabling the
PLL in the snd_soc_codec_set_pll call. Naturally the enabling the PLL
will also cause the chip to resume.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/wm8804-i2c.c b/sound/soc/codecs/wm8804-i2c.c
index 5bd4af2..6596f5f 100644
--- a/sound/soc/codecs/wm8804-i2c.c
+++ b/sound/soc/codecs/wm8804-i2c.c
@@ -50,6 +50,7 @@
.driver = {
.name = "wm8804",
.owner = THIS_MODULE,
+ .pm = &wm8804_pm,
.of_match_table = wm8804_of_match,
},
.probe = wm8804_i2c_probe,