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authorMark Brown <broonie@kernel.org>2015-06-22 10:24:35 +0100
committerMark Brown <broonie@kernel.org>2015-06-22 10:24:35 +0100
commit6afff9e0607933afb948d9e60c684b669fe4928c (patch)
tree762ef7ff39912df795ff98e7d1780c51fd9cbee4
parent71d8c2d78351a3c2fe6b432f1d5efd78327c97d8 (diff)
parent85a4bfd895778960dc2d655087ac7ff442b6ab9e (diff)
downloadlinux-6afff9e0607933afb948d9e60c684b669fe4928c.tar.bz2
Merge remote-tracking branch 'asoc/topic/simple' into asoc-next
-rw-r--r--Documentation/devicetree/bindings/sound/simple-card.txt6
-rw-r--r--sound/soc/generic/simple-card.c18
2 files changed, 20 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/sound/simple-card.txt b/Documentation/devicetree/bindings/sound/simple-card.txt
index 73bf314f7240..cf3979eb3578 100644
--- a/Documentation/devicetree/bindings/sound/simple-card.txt
+++ b/Documentation/devicetree/bindings/sound/simple-card.txt
@@ -16,7 +16,8 @@ Optional properties:
connection's sink, the second being the connection's
source.
- simple-audio-card,mclk-fs : Multiplication factor between stream rate and codec
- mclk.
+ mclk. When defined, mclk-fs property defined in
+ dai-link sub nodes are ignored.
- simple-audio-card,hp-det-gpio : Reference to GPIO that signals when
headphones are attached.
- simple-audio-card,mic-det-gpio : Reference to GPIO that signals when
@@ -55,6 +56,9 @@ Optional dai-link subnode properties:
dai-link uses bit clock inversion.
- frame-inversion : bool property. Add this if the
dai-link uses frame clock inversion.
+- mclk-fs : Multiplication factor between stream
+ rate and codec mclk, applied only for
+ the dai-link.
For backward compatibility the frame-master and bitclock-master
properties can be used as booleans in codec subnode to indicate if the
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index c87e58504a62..d5554939146e 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -26,6 +26,7 @@ struct simple_card_data {
struct simple_dai_props {
struct asoc_simple_dai cpu_dai;
struct asoc_simple_dai codec_dai;
+ unsigned int mclk_fs;
} *dai_props;
unsigned int mclk_fs;
int gpio_hp_det;
@@ -76,11 +77,18 @@ static int asoc_simple_card_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
- unsigned int mclk;
+ struct simple_dai_props *dai_props =
+ &priv->dai_props[rtd - rtd->card->rtd];
+ unsigned int mclk, mclk_fs = 0;
int ret = 0;
- if (priv->mclk_fs) {
- mclk = params_rate(params) * priv->mclk_fs;
+ if (priv->mclk_fs)
+ mclk_fs = priv->mclk_fs;
+ else if (dai_props->mclk_fs)
+ mclk_fs = dai_props->mclk_fs;
+
+ if (mclk_fs) {
+ mclk = params_rate(params) * mclk_fs;
ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
SND_SOC_CLOCK_IN);
}
@@ -313,6 +321,7 @@ static int asoc_simple_card_dai_link_of(struct device_node *node,
char prop[128];
char *prefix = "";
int ret, cpu_args;
+ u32 val;
/* For single DAI link & old style of DT node */
if (is_top_level_node)
@@ -338,6 +347,9 @@ static int asoc_simple_card_dai_link_of(struct device_node *node,
if (ret < 0)
goto dai_link_of_err;
+ if (!of_property_read_u32(node, "mclk-fs", &val))
+ dai_props->mclk_fs = val;
+
ret = asoc_simple_card_sub_parse_of(cpu, &dai_props->cpu_dai,
&dai_link->cpu_of_node,
&dai_link->cpu_dai_name,