[alsa-devel] [PATCH] ASoC: UDA134X Codec: Fix mute/unmute code mistake and add ADC/DAC power control support

Shine Liu shinel at foxmail.com
Mon Aug 17 13:53:15 CEST 2009


On Mon, 2009-08-17 at 12:27 +0100, Mark Brown wrote:

> +	/* 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;

Should be "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)) {
> 
> 
> 




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