This is a note to let you know that I've just added the patch titled
ASoC: dapm: Check for bias level when powering down
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-dapm-check-for-bias-level-when-powering-down.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 7679e42ec833ed70aa34790a5f39dcb7e5bda4fe Mon Sep 17 00:00:00 2001
From: Mark Brown <[email protected]>
Date: Wed, 22 Feb 2012 15:52:56 +0000
Subject: ASoC: dapm: Check for bias level when powering down
From: Mark Brown <[email protected]>
commit 7679e42ec833ed70aa34790a5f39dcb7e5bda4fe upstream.
Recent enhancements in the bias management means that we might not be
in standby when the CODEC is idle and can have active widgets without
being in full power mode but the shutdown functionality assumes these
things. Add checks for the bias level at each stage so that we don't
do transitions other than the ON->PREPARE->STANDBY->OFF ones that the
drivers are expecting.
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/soc/soc-dapm.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2615,9 +2615,13 @@ static void soc_dapm_shutdown_codec(stru
* standby.
*/
if (powerdown) {
- snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_PREPARE);
+ if (dapm->bias_level == SND_SOC_BIAS_ON)
+ snd_soc_dapm_set_bias_level(dapm,
+ SND_SOC_BIAS_PREPARE);
dapm_seq_run(dapm, &down_list, 0, false);
- snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_STANDBY);
+ if (dapm->bias_level == SND_SOC_BIAS_PREPARE)
+ snd_soc_dapm_set_bias_level(dapm,
+ SND_SOC_BIAS_STANDBY);
}
}
@@ -2630,7 +2634,9 @@ void snd_soc_dapm_shutdown(struct snd_so
list_for_each_entry(codec, &card->codec_dev_list, list) {
soc_dapm_shutdown_codec(&codec->dapm);
- snd_soc_dapm_set_bias_level(&codec->dapm, SND_SOC_BIAS_OFF);
+ if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY)
+ snd_soc_dapm_set_bias_level(&codec->dapm,
+ SND_SOC_BIAS_OFF);
}
}
Patches currently in stable-queue which might be from
[email protected] are
queue-3.0/asoc-i.mx-ssi-fix-dsp_a-format.patch
queue-3.0/asoc-dapm-check-for-bias-level-when-powering-down.patch
queue-3.0/regulator-fix-the-ldo-configure-according-to-88pm860x-spec.patch
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