ASoC: Decouple DAPM from CODECs

Decoupling Dynamic Audio Power Management (DAPM) from codec devices is
required when developing ASoC further. Such as for other ASoC components to
have DAPM widgets or when extending DAPM to handle cross-device paths.

This patch decouples DAPM related variables from struct snd_soc_codec and
moves them to new struct snd_soc_dapm_context that is used to encapsulate
DAPM context of a device. ASoC core and API of DAPM functions are modified
to use DAPM context instead of codec.

This patch does not change current functionality and a large part of changes
come because of structure and internal API changes.

Core implementation is from Liam Girdwood <lrg@slimlogic.co.uk> with some
minor core changes, codecs and machine driver conversions from
Jarkko Nikula <jhnikula@gmail.com>.

Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Manuel Lauss <manuel.lauss@googlemail.com>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Cc: Cliff Cai <cliff.cai@analog.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Ryan Mallon <ryan@bluewatersys.com>
Cc: Timur Tabi <timur@freescale.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Jassi Brar <jassi.brar@samsung.com>
Cc: Daniel Gloeckner <dg@emlix.com>
Cc: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 21 insertions, 19 deletions

diff --git a/sound/soc/s6000/s6105-ipcam.c b/sound/soc/s6000/s6105-ipcam.c
index 96c05e137538..db1803d9665a 100644
--- a/sound/soc/s6000/s6105-ipcam.c
+++ b/sound/soc/s6000/s6105-ipcam.c
@@ -107,6 +107,7 @@ static int output_type_put(struct snd_kcontrol *kcontrol,
                            struct snd_ctl_elem_value *ucontrol)
 {
         struct snd_soc_codec *codec = kcontrol->private_data;
+        struct snd_soc_dapm_context *dapm = &codec->dapm;
         unsigned int val = (ucontrol->value.enumerated.item[0] != 0);
         char *differential = "Audio Out Differential";
         char *stereo = "Audio Out Stereo";
@@ -114,10 +115,10 @@ static int output_type_put(struct snd_kcontrol *kcontrol,
         if (kcontrol->private_value == val)
                 return 0;
         kcontrol->private_value = val;
-        snd_soc_dapm_disable_pin(codec, val ? differential : stereo);
-        snd_soc_dapm_sync(codec);
-        snd_soc_dapm_enable_pin(codec, val ? stereo : differential);
-        snd_soc_dapm_sync(codec);
+        snd_soc_dapm_disable_pin(dapm, val ? differential : stereo);
+        snd_soc_dapm_sync(dapm);
+        snd_soc_dapm_enable_pin(dapm, val ? stereo : differential);
+        snd_soc_dapm_sync(dapm);
 
         return 1;
 }
@@ -137,35 +138,36 @@ static const struct snd_kcontrol_new audio_out_mux = {
 static int s6105_aic3x_init(struct snd_soc_pcm_runtime *rtd)
 {
         struct snd_soc_codec *codec = rtd->codec;
+        struct snd_soc_dapm_context *dapm = &codec->dapm;
 
         /* Add s6105 specific widgets */
-        snd_soc_dapm_new_controls(codec, aic3x_dapm_widgets,
+        snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
                                   ARRAY_SIZE(aic3x_dapm_widgets));
 
         /* Set up s6105 specific audio path audio_map */
-        snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
+        snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
 
         /* not present */
-        snd_soc_dapm_nc_pin(codec, "MONO_LOUT");
-        snd_soc_dapm_nc_pin(codec, "LINE2L");
-        snd_soc_dapm_nc_pin(codec, "LINE2R");
+        snd_soc_dapm_nc_pin(dapm, "MONO_LOUT");
+        snd_soc_dapm_nc_pin(dapm, "LINE2L");
+        snd_soc_dapm_nc_pin(dapm, "LINE2R");
 
         /* not connected */
-        snd_soc_dapm_nc_pin(codec, "MIC3L"); /* LINE2L on this chip */
-        snd_soc_dapm_nc_pin(codec, "MIC3R"); /* LINE2R on this chip */
-        snd_soc_dapm_nc_pin(codec, "LLOUT");
-        snd_soc_dapm_nc_pin(codec, "RLOUT");
-        snd_soc_dapm_nc_pin(codec, "HPRCOM");
+        snd_soc_dapm_nc_pin(dapm, "MIC3L"); /* LINE2L on this chip */
+        snd_soc_dapm_nc_pin(dapm, "MIC3R"); /* LINE2R on this chip */
+        snd_soc_dapm_nc_pin(dapm, "LLOUT");
+        snd_soc_dapm_nc_pin(dapm, "RLOUT");
+        snd_soc_dapm_nc_pin(dapm, "HPRCOM");
 
         /* always connected */
-        snd_soc_dapm_enable_pin(codec, "Audio In");
+        snd_soc_dapm_enable_pin(dapm, "Audio In");
 
         /* must correspond to audio_out_mux.private_value initializer */
-        snd_soc_dapm_disable_pin(codec, "Audio Out Differential");
-        snd_soc_dapm_sync(codec);
-        snd_soc_dapm_enable_pin(codec, "Audio Out Stereo");
+        snd_soc_dapm_disable_pin(dapm, "Audio Out Differential");
+        snd_soc_dapm_sync(dapm);
+        snd_soc_dapm_enable_pin(dapm, "Audio Out Stereo");
 
-        snd_soc_dapm_sync(codec);
+        snd_soc_dapm_sync(dapm);
 
         snd_ctl_add(codec->snd_card, snd_ctl_new1(&audio_out_mux, codec));