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| author |   Samuel Holland <samuel@sholland.org> | 2020-07-25 21:53:28 -0500 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2020-08-17 16:19:12 +0100 |
| commit | 9b7612bb75e50acc55d2143cadb8057a6721d9c7 (patch) | |
| tree | 644b61d943fda886c1885f53bec907a36a43ada5 /sound/soc/sunxi | |
| parent | ASoC: sun50i-codec-analog: Fix duplicate use of ADC enable bits (diff) | |
| download | linux-dev-9b7612bb75e50acc55d2143cadb8057a6721d9c7.tar.xz linux-dev-9b7612bb75e50acc55d2143cadb8057a6721d9c7.zip | |
ASoC: sun50i-codec-analog: Gate the amplifier clock during suspend
The clock must be running for the zero-crossing mute functionality.
However, it must be gated for VDD-SYS to be turned off during system
suspend. Disable it in the suspend callback, after everything has
already been muted, to avoid pops when muting/unmuting outputs.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20200726025334.59931-3-samuel@sholland.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sunxi')
| -rw-r--r-- | sound/soc/sunxi/sun50i-codec-analog.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sound/soc/sunxi/sun50i-codec-analog.c b/sound/soc/sunxi/sun50i-codec-analog.c index cbdb31c3b7bd..4ad262c2e59b 100644 --- a/sound/soc/sunxi/sun50i-codec-analog.c +++ b/sound/soc/sunxi/sun50i-codec-analog.c @@ -438,6 +438,19 @@ static const struct snd_soc_dapm_route sun50i_a64_codec_routes[] = { { "EARPIECE", NULL, "Earpiece Amp" }, }; +static int sun50i_a64_codec_suspend(struct snd_soc_component *component) +{ + return regmap_update_bits(component->regmap, SUN50I_ADDA_HP_CTRL, + BIT(SUN50I_ADDA_HP_CTRL_PA_CLK_GATE), + BIT(SUN50I_ADDA_HP_CTRL_PA_CLK_GATE)); +} + +static int sun50i_a64_codec_resume(struct snd_soc_component *component) +{ + return regmap_update_bits(component->regmap, SUN50I_ADDA_HP_CTRL, + BIT(SUN50I_ADDA_HP_CTRL_PA_CLK_GATE), 0); +} + static const struct snd_soc_component_driver sun50i_codec_analog_cmpnt_drv = { .controls = sun50i_a64_codec_controls, .num_controls = ARRAY_SIZE(sun50i_a64_codec_controls), @@ -445,6 +458,8 @@ static const struct snd_soc_component_driver sun50i_codec_analog_cmpnt_drv = { .num_dapm_widgets = ARRAY_SIZE(sun50i_a64_codec_widgets), .dapm_routes = sun50i_a64_codec_routes, .num_dapm_routes = ARRAY_SIZE(sun50i_a64_codec_routes), + .suspend = sun50i_a64_codec_suspend, + .resume = sun50i_a64_codec_resume, }; static const struct of_device_id sun50i_codec_analog_of_match[] = { |