Commit 3b1228ab authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Stop WM8903 SYSCLK when suspending 



This will save some additional power.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent d58d5d55

sound/soc/codecs/wm8903.c

+6 −3
Original line number Diff line number Diff line
@@ -997,6 +997,9 @@ static int wm8903_set_bias_level(struct snd_soc_codec *codec, 


	case SND_SOC_BIAS_STANDBY:

		if (codec->bias_level == SND_SOC_BIAS_OFF) {

			wm8903_write(codec, WM8903_CLOCK_RATES_2,

				     WM8903_CLK_SYS_ENA);



			wm8903_run_sequence(codec, 0);

			wm8903_sync_reg_cache(codec, codec->reg_cache);
@@ -1027,6 +1030,9 @@ static int wm8903_set_bias_level(struct snd_soc_codec *codec, 


	case SND_SOC_BIAS_OFF:

		wm8903_run_sequence(codec, 32);

		reg = wm8903_read(codec, WM8903_CLOCK_RATES_2);

		reg &= ~WM8903_CLK_SYS_ENA;

		wm8903_write(codec, WM8903_CLOCK_RATES_2, reg);

		break;

	}
@@ -1619,9 +1625,6 @@ static int wm8903_i2c_probe(struct i2c_client *i2c, 


	wm8903_reset(codec);



	/* SYSCLK is required for pretty much anything */

	wm8903_write(codec, WM8903_CLOCK_RATES_2, WM8903_CLK_SYS_ENA);



	/* power on device */

	wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);