[PATCH v2] ASoC: soc-core: add snd_soc_of_parse_master_clkdir() for dt

From: Xiubo Li
Date: Wed Jan 01 2014 - 22:45:17 EST


This patch adds snd_soc_of_parse_master_clkdir() and supports below
style on dt:

master-clkdir-out;

If this property is absent 0 will be returned, 1 otherwise.
0 : SND_SOC_CLOCK_IN
1 : SND_SOC_CLOCK_OUT

Signed-off-by: Xiubo Li <Li.Xiubo@xxxxxxxxxxxxx>
---
include/sound/soc.h | 1 +
sound/soc/soc-core.c | 11 +++++++++++
2 files changed, 12 insertions(+)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 5a049d9..690f4f6 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1170,6 +1170,7 @@ int snd_soc_of_parse_card_name(struct snd_soc_card *card,
const char *propname);
int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
const char *propname);
+unsigned int snd_soc_of_parse_master_clkdir(struct device_node *np);
unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
const char *prefix);
int snd_soc_of_get_dai_name(struct device_node *of_node,
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index be88df5..f155207 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -4472,6 +4472,17 @@ 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_master_clkdir(struct device_node *np)
+{
+ /*
+ * check "master-clkdir-out"
+ * false means SND_SOC_CLOCK_IN
+ * true means SND_SOC_CLOCK_OUT
+ */
+ return !!of_property_read_bool(np, "master-clkdir-out");
+}
+EXPORT_SYMBOL_GPL(snd_soc_of_parse_master_clkdir);
+
unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
const char *prefix)
{
--
1.8.4


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