ASoC: core: Update snd_soc_of_parse_daifmt() interface

Adds struct device_node **bitclkmaster and struct device_node **framemaster
function parameters. With the new syntax bitclock-master and frame-master
properties can explicitly indicate the dai-link bit-clock and frame masters
with a phandle. This patch also makes the minimal changes to simple-card
for it to work with the updated snd_soc_of_parse_daifmt(). Simple-card appears
to be the only user of snd_soc_of_parse_daifmt() for now.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>

3 files changed, 13 insertions, 4 deletions

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 0b83168d8ff4..58784105289a 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1241,7 +1241,9 @@ int snd_soc_of_parse_tdm_slot(struct device_node *np,
 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
                                    const char *propname);
 unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
-                                     const char *prefix);
+                                     const char *prefix,
+                                     struct device_node **bitclkmaster,
+                                     struct device_node **framemaster);
 int snd_soc_of_get_dai_name(struct device_node *of_node,
                             const char **dai_name);
 
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 21f1ccbdf582..835fd0258243 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -121,7 +121,7 @@ asoc_simple_card_sub_parse_of(struct device_node *np,
          * bitclock-master,    frame-master
          * and specific "format" if it has
          */
-        dai->fmt = snd_soc_of_parse_daifmt(np, NULL);
+        dai->fmt = snd_soc_of_parse_daifmt(np, NULL, NULL, NULL);
         dai->fmt |= daifmt;
 
         /*
@@ -201,7 +201,8 @@ static int asoc_simple_card_parse_of(struct device_node *node,
         snd_soc_of_parse_card_name(&priv->snd_card, "simple-audio-card,name");
 
         /* get CPU/CODEC common format via simple-audio-card,format */
-        daifmt = snd_soc_of_parse_daifmt(node, "simple-audio-card,") &
+        daifmt = snd_soc_of_parse_daifmt(node, "simple-audio-card,", NULL,
+                                         NULL) &
                 (SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_INV_MASK);
 
         /* off-codec widgets */
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 051c006281f5..3487a55c9a06 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -4554,7 +4554,9 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
 EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing);
 
 unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
-                                     const char *prefix)
+                                     const char *prefix,
+                                     struct device_node **bitclkmaster,
+                                     struct device_node **framemaster)
 {
         int ret, i;
         char prop[128];
@@ -4637,9 +4639,13 @@ unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
          */
         snprintf(prop, sizeof(prop), "%sbitclock-master", prefix);
         bit = !!of_get_property(np, prop, NULL);
+        if (bit && bitclkmaster)
+                *bitclkmaster = of_parse_phandle(np, prop, 0);
 
         snprintf(prop, sizeof(prop), "%sframe-master", prefix);
         frame = !!of_get_property(np, prop, NULL);
+        if (frame && framemaster)
+                *framemaster = of_parse_phandle(np, prop, 0);
 
         switch ((bit << 4) + frame) {
         case 0x11: