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

[prefix]master-clkdir;

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@freescale.com ---

I'm not very sure whether this patch is need for dt.

For the CPU and CODEC devices' sysclk directions maybe different of the same DAI link.

include/sound/soc.h | 2 ++ sound/soc/soc-core.c | 19 +++++++++++++++++++ 2 files changed, 21 insertions(+)

diff --git a/include/sound/soc.h b/include/sound/soc.h index 5a049d9..1d6396a 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1170,6 +1170,8 @@ 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, + const char *prefix); 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..faf102f 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -4472,6 +4472,25 @@ 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, + const char *prefix) +{ + char prop[128]; + + if (!prefix) + prefix = ""; + + /* + * check "[prefix]master-clkdir" + * true means SND_SOC_CLOCK_OUT + * false means SND_SOC_CLOCK_IN + */ + snprintf(prop, sizeof(prop), "%smaster-clkdir", prefix); + + return !!of_property_read_bool(np, prop); +} +EXPORT_SYMBOL_GPL(snd_soc_of_parse_master_clkdir); + unsigned int snd_soc_of_parse_daifmt(struct device_node *np, const char *prefix) {