From 52ba67bf85889828b3766207fa43ce7159c84c78 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 4 Apr 2011 21:05:11 +0900 Subject: [PATCH] ASoC: Force all DAPM contexts into the same bias state Currently we allow all DAPM contexts to determine their own bias level. While this should in general work in most situations and will deliver the lowest possible power it causes problems for our integration with the card bias level as we're calling the card bias level functions for each DAPM context even though they're card wide but don't say which CODEC we're calling them for. Mitigate against this by forcing everything to be in the same state. Signed-off-by: Mark Brown Acked-by: Liam Girdwood --- sound/soc/soc-dapm.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 567645c..6887920 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -1101,6 +1101,15 @@ static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) } } + /* Force all contexts in the card to the same bias state */ + power = 0; + list_for_each_entry(d, &card->dapm_list, list) + if (d->dev_power) + power = 1; + list_for_each_entry(d, &card->dapm_list, list) + d->dev_power = power; + + /* Run all the bias changes in parallel */ list_for_each_entry(d, &dapm->card->dapm_list, list) async_schedule_domain(dapm_pre_sequence_async, d, -- 2.7.4