ASoC: Stop WM8903 SYSCLK when suspending
This will save some additional power. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -997,6 +997,9 @@ static int wm8903_set_bias_level(struct snd_soc_codec *codec,
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case SND_SOC_BIAS_STANDBY:
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case SND_SOC_BIAS_STANDBY:
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if (codec->bias_level == SND_SOC_BIAS_OFF) {
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if (codec->bias_level == SND_SOC_BIAS_OFF) {
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wm8903_write(codec, WM8903_CLOCK_RATES_2,
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WM8903_CLK_SYS_ENA);
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wm8903_run_sequence(codec, 0);
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wm8903_run_sequence(codec, 0);
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wm8903_sync_reg_cache(codec, codec->reg_cache);
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wm8903_sync_reg_cache(codec, codec->reg_cache);
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@ -1027,6 +1030,9 @@ static int wm8903_set_bias_level(struct snd_soc_codec *codec,
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case SND_SOC_BIAS_OFF:
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case SND_SOC_BIAS_OFF:
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wm8903_run_sequence(codec, 32);
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wm8903_run_sequence(codec, 32);
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reg = wm8903_read(codec, WM8903_CLOCK_RATES_2);
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reg &= ~WM8903_CLK_SYS_ENA;
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wm8903_write(codec, WM8903_CLOCK_RATES_2, reg);
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break;
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break;
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}
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}
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@ -1619,9 +1625,6 @@ static int wm8903_i2c_probe(struct i2c_client *i2c,
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wm8903_reset(codec);
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wm8903_reset(codec);
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/* SYSCLK is required for pretty much anything */
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wm8903_write(codec, WM8903_CLOCK_RATES_2, WM8903_CLK_SYS_ENA);
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/* power on device */
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/* power on device */
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wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
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wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
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