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authorSeth Forshee <seth.forshee@gmail.com>2007-04-16 15:36:42 +0200
committerJaroslav Kysela <perex@suse.cz>2007-05-11 16:56:00 +0200
commit1e39221eba72e4af37b40e71749b0c18bb16b9a6 (patch)
treed304dcd1f69e9311a327edd21b3f22abdd2b2ddc /sound/soc
parent30652c4506c8bbfdf869ddc4c238e07de038f02a (diff)
downloadlinux-1e39221eba72e4af37b40e71749b0c18bb16b9a6.tar.bz2
[ALSA] ASoC DAPM switching for reentrant codec paths
This patch fixes an issue whereby power was applied to any inactive analog path that would leave and reenter a codec (e.g. ACOP -> ACIN on WM8753). This change now checks for such paths and DAPM will power them down when not in use. Signed-off-by: Seth Forshee <seth.forshee@gmail.com> Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/soc')
-rw-r--r--sound/soc/soc-dapm.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 7caf8c7b0ac5..96bce55572a0 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -882,13 +882,15 @@ int snd_soc_dapm_connect_input(struct snd_soc_codec *codec, const char *sink,
if (wsink->id == snd_soc_dapm_input) {
if (wsource->id == snd_soc_dapm_micbias ||
wsource->id == snd_soc_dapm_mic ||
- wsink->id == snd_soc_dapm_line)
+ wsink->id == snd_soc_dapm_line ||
+ wsink->id == snd_soc_dapm_output)
wsink->ext = 1;
}
if (wsource->id == snd_soc_dapm_output) {
if (wsink->id == snd_soc_dapm_spk ||
wsink->id == snd_soc_dapm_hp ||
- wsink->id == snd_soc_dapm_line)
+ wsink->id == snd_soc_dapm_line ||
+ wsink->id == snd_soc_dapm_input)
wsource->ext = 1;
}