ASoC: Add DAPM widget and path data to CODEC driver structure

Allow a slight simplification of CODEC drivers by allowing DAPM routes and
widgets to be provided in a table. They will be instantiated at the end of
CODEC probe.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 9c2a6dd..6f19758 100644 (file)
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -562,6 +562,12 @@ struct snd_soc_codec_driver {
                        pm_message_t state);
        int (*resume)(struct snd_soc_codec *);
 
+       /* Default DAPM setup, added after probe() is run */
+       const struct snd_soc_dapm_widget *dapm_widgets;
+       int num_dapm_widgets;
+       const struct snd_soc_dapm_route *dapm_routes;
+       int num_dapm_routes;
+
        /* codec IO */
        unsigned int (*read)(struct snd_soc_codec *, unsigned int);
        int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index be34f6b..c12f2bd 100644 (file)
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1464,6 +1464,7 @@ static int soc_probe_codec(struct snd_soc_card *card,
                           struct snd_soc_codec *codec)
 {
        int ret = 0;
+       const struct snd_soc_codec_driver *driver = codec->driver;
 
        codec->card = card;
        codec->dapm.card = card;
@@ -1472,8 +1473,8 @@ static int soc_probe_codec(struct snd_soc_card *card,
        if (!try_module_get(codec->dev->driver->owner))
                return -ENODEV;
 
-       if (codec->driver->probe) {
-               ret = codec->driver->probe(codec);
+       if (driver->probe) {
+               ret = driver->probe(codec);
                if (ret < 0) {
                        dev_err(codec->dev,
                                "asoc: failed to probe CODEC %s: %d\n",
@@ -1482,6 +1483,13 @@ static int soc_probe_codec(struct snd_soc_card *card,
                }
        }
 
+       if (driver->dapm_widgets)
+               snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets,
+                                         driver->num_dapm_widgets);
+       if (driver->dapm_routes)
+               snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes,
+                                       driver->num_dapm_routes);
+
        soc_init_codec_debugfs(codec);
 
        /* mark codec as probed and add to card codec list */