diff options
| author | Oleksandr Suvorov <oleksandr.suvorov@toradex.com> | 2019-08-13 16:19:26 +0300 |
|---|---|---|
| committer | Oleksandr Suvorov <oleksandr.suvorov@toradex.com> | 2021-01-27 20:36:26 +0200 |
| commit | 3875f328252c602d876dc6d53754df386f38ffde (patch) | |
| tree | d2817880b6c58865cfec0c3552ef38499299f63f /sound/soc/codecs | |
| parent | 1e652856a5b1dda2ab2c624fb14a47be0b12c059 (diff) | |
ASoC: sgtl5000: Restore mclk on resume device
sgtl5000 goes to fail state after suspend system:
[ 60.308603] sgtl5000 16-000a: ASoC: Failed to turn on bias: -5
[ 60.309264] sgtl5000 16-000a: Unable to sync registers 0x2-0x6. -5
To fix it, mclk is forced to reenable on system resume.
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
(cherry picked from commit 475eb701f1a774b713433dfdfbc52fd04e8e6691)
Conflicts:
sound/soc/codecs/sgtl5000.c
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Diffstat (limited to 'sound/soc/codecs')
| -rw-r--r-- | sound/soc/codecs/sgtl5000.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c index f5b59305c957..6539c38280cd 100644 --- a/sound/soc/codecs/sgtl5000.c +++ b/sound/soc/codecs/sgtl5000.c @@ -1514,8 +1514,34 @@ err: return ret; } +static int sgtl5000_suspend(struct snd_soc_component *component) +{ + struct sgtl5000_priv *sgtl5000 = snd_soc_component_get_drvdata(component); + + clk_disable_unprepare(sgtl5000->mclk); + + return 0; +} + +static int sgtl5000_resume(struct snd_soc_component *component) +{ + int ret; + struct sgtl5000_priv *sgtl5000 = snd_soc_component_get_drvdata(component); + + ret = clk_prepare_enable(sgtl5000->mclk); + if (ret) + dev_err(component->dev, "Error enabling clock %d\n", ret); + + /* Need 8 clocks before I2C accesses */ + udelay(1); + + return ret; +} + static const struct snd_soc_component_driver sgtl5000_driver = { .probe = sgtl5000_probe, + .suspend = sgtl5000_suspend, + .resume = sgtl5000_resume, .set_bias_level = sgtl5000_set_bias_level, .controls = sgtl5000_snd_controls, .num_controls = ARRAY_SIZE(sgtl5000_snd_controls), |