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authorJarkko Nikula <jhnikula@gmail.com>2010-12-14 12:18:31 +0200
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-12-15 18:01:01 +0000
commit97c866defc0fc6e18b49603ac19f732f53e79c46 (patch)
tree66ba8412fad0974ebf9a30c45ad5d81f26607e6e /sound/soc/codecs/wm8960.c
parent8ddab3f5107c3955e70e87a632d4d179ddba1189 (diff)
downloadlinux-97c866defc0fc6e18b49603ac19f732f53e79c46.tar.bz2
ASoC: Move widgets from DAPM context to snd_soc_card
Decoupling widgets from DAPM context is required when extending the ASoC core to cross-device paths. Even the list of widgets are now kept in struct snd_soc_card, the widget listing in sysfs and debugs remain sorted per device. This patch makes possible to build cross-device paths but does not extend yet the DAPM to handle codec bias and widget power changes of an another device. Cross-device paths are registered by listing the widgets from device A in a map for device B. In case of conflicting widget names between the devices, a uniform name prefix is needed to separate them. See commit ead9b91 "ASoC: Add optional name_prefix for kcontrol, widget and route names" for help. An example below shows a path that connects MONO out of A into Line In of B: static const struct snd_soc_dapm_route mapA[] = { {"MONO", NULL, "DAC"}, }; static const struct snd_soc_dapm_route mapB[] = { {"Line In", NULL, "MONO"}, }; Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/codecs/wm8960.c')
-rw-r--r--sound/soc/codecs/wm8960.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c
index 2c5712dce1d5..054f5737319c 100644
--- a/sound/soc/codecs/wm8960.c
+++ b/sound/soc/codecs/wm8960.c
@@ -418,7 +418,9 @@ static int wm8960_add_widgets(struct snd_soc_codec *codec)
* list each time to find the desired power state do so now
* and save the result.
*/
- list_for_each_entry(w, &codec->dapm.widgets, list) {
+ list_for_each_entry(w, &codec->card->widgets, list) {
+ if (w->dapm != &codec->dapm)
+ continue;
if (strcmp(w->name, "LOUT1 PGA") == 0)
wm8960->lout1 = w;
if (strcmp(w->name, "ROUT1 PGA") == 0)