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Commit 2c8be5a2 authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Dynamically manage CLK_SYS in WM8903 



Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
parent 13a9983e

sound/soc/codecs/wm8903.c

+12 −3
Original line number Diff line number Diff line
@@ -860,10 +860,18 @@ SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5, 0, 0, 
SND_SOC_DAPM_SUPPLY("Charge Pump", WM8903_CHARGE_PUMP_0, 0, 0,

		    wm8903_cp_event, SND_SOC_DAPM_POST_PMU),

SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8903_CLOCK_RATES_2, 1, 0, NULL, 0),

SND_SOC_DAPM_SUPPLY("CLK_SYS", WM8903_CLOCK_RATES_2, 2, 0, NULL, 0),

};



static const struct snd_soc_dapm_route intercon[] = {



	{ "CLK_DSP", NULL, "CLK_SYS" },

	{ "Mic Bias", NULL, "CLK_SYS" },

	{ "HPL_DCS", NULL, "CLK_SYS" },

	{ "HPR_DCS", NULL, "CLK_SYS" },

	{ "LINEOUTL_DCS", NULL, "CLK_SYS" },

	{ "LINEOUTR_DCS", NULL, "CLK_SYS" },



	{ "Left Input Mux", "IN1L", "IN1L" },

	{ "Left Input Mux", "IN2L", "IN2L" },

	{ "Left Input Mux", "IN3L", "IN3L" },
@@ -1059,10 +1067,11 @@ static int wm8903_set_bias_level(struct snd_soc_codec *codec, 
		break;



	case SND_SOC_BIAS_OFF:

		snd_soc_update_bits(codec, WM8903_CLOCK_RATES_2,

				    WM8903_CLK_SYS_ENA, WM8903_CLK_SYS_ENA);

		wm8903_run_sequence(codec, 32);

		reg = snd_soc_read(codec, WM8903_CLOCK_RATES_2);

		reg &= ~WM8903_CLK_SYS_ENA;

		snd_soc_write(codec, WM8903_CLOCK_RATES_2, reg);

		snd_soc_update_bits(codec, WM8903_CLOCK_RATES_2,

				    WM8903_CLK_SYS_ENA, 0);

		break;

	}