Unverified Commit 9b7612bb authored by Samuel Holland's avatar Samuel Holland Committed by Mark Brown
Browse files

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: default avatarSamuel Holland <samuel@sholland.org>
Acked-by: default avatarChen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20200726025334.59931-3-samuel@sholland.org


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent ad5b7f69

sound/soc/sunxi/sun50i-codec-analog.c

+15 −0
Original line number Diff line number Diff line
@@ -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[] = {

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