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Commit 9dd8d812 authored by Mark Brown's avatar Mark Brown Committed by Takashi Iwai
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ALSA: ASoC: Factor PGA DAPM handling into main 



This allows pre and post event hooks to be provided for PGA widgets.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 2927d6ee

sound/soc/soc-dapm.c

+8 −18
Original line number Diff line number Diff line
@@ -523,24 +523,6 @@ static int dapm_power_widgets(struct snd_soc_codec *codec, int event) 
				continue;

			}



			/* programmable gain/attenuation */

			if (w->id == snd_soc_dapm_pga) {

				int on;

				in = is_connected_input_ep(w);

				dapm_clear_walk(w->codec);

				out = is_connected_output_ep(w);

				dapm_clear_walk(w->codec);

				w->power = on = (out != 0 && in != 0) ? 1 : 0;



				if (!on)

					dapm_set_pga(w, on); /* lower volume to reduce pops */

				dapm_update_bits(w);

				if (on)

					dapm_set_pga(w, on); /* restore volume from zero */



				continue;

			}



			/* pre and post event widgets */

			if (w->id == snd_soc_dapm_pre) {

				if (!w->event)
@@ -611,8 +593,16 @@ static int dapm_power_widgets(struct snd_soc_codec *codec, int event) 
					return ret;

			}



			/* Lower PGA volume to reduce pops */

			if (w->id == snd_soc_dapm_pga && !power)

				dapm_set_pga(w, power);



			dapm_update_bits(w);



			/* Raise PGA volume to reduce pops */

			if (w->id == snd_soc_dapm_pga && power)

				dapm_set_pga(w, power);



			/* power up post event */

			if (power && w->event &&

			    (w->event_flags & SND_SOC_DAPM_POST_PMU)) {