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Commit b14b76a5 authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Fix handling of bias levels for non-DAPM codecs 



If the system doesn't have any DAPM widgets then we can't use their
state to check if the bias level for the codec should be up.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 0c093fb5

sound/soc/soc-dapm.c

+16 −0
Original line number Diff line number Diff line
@@ -966,6 +966,22 @@ static int dapm_power_widgets(struct snd_soc_codec *codec, int event) 
		}

	}



	/* If there are no DAPM widgets then try to figure out power from the

	 * event type.

	 */

	if (list_empty(&codec->dapm_widgets)) {

		switch (event) {

		case SND_SOC_DAPM_STREAM_START:

		case SND_SOC_DAPM_STREAM_RESUME:

			sys_power = 1;

			break;

		case SND_SOC_DAPM_STREAM_NOP:

			sys_power = codec->bias_level != SND_SOC_BIAS_STANDBY;

		default:

			break;

		}

	}



	/* If we're changing to all on or all off then prepare */

	if ((sys_power && codec->bias_level == SND_SOC_BIAS_STANDBY) ||

	    (!sys_power && codec->bias_level == SND_SOC_BIAS_ON)) {