ASoC: soc-core: add snd_soc_daifmt_clock_provider_from_bitmap()

This patch adds snd_soc_daifmt_clock_provider_from_bitmap() function
to judge clock/frame master from its bitmap.
This is prepare for snd_soc_of_parse_daifmt() cleanup.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87a6ntw9f5.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/include/sound/soc.h b/include/sound/soc.h
index e746da9..ea35e43 100644 (file)
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1232,6 +1232,7 @@ void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card,
 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
                                   const char *propname);
 int snd_soc_of_parse_aux_devs(struct snd_soc_card *card, const char *propname);
+unsigned int snd_soc_daifmt_clock_provider_from_bitmap(unsigned int bit_frame);
 unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
                                     const char *prefix,
                                     struct device_node **bitclkmaster,

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index da3cd7c..bbbdf62 100644 (file)
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3017,6 +3017,24 @@ int snd_soc_of_parse_aux_devs(struct snd_soc_card *card, const char *propname)
 }
 EXPORT_SYMBOL_GPL(snd_soc_of_parse_aux_devs);
 
+unsigned int snd_soc_daifmt_clock_provider_from_bitmap(unsigned int bit_frame)
+{
+       /* Codec base */
+       switch (bit_frame) {
+       case 0x11:
+               return SND_SOC_DAIFMT_CBP_CFP;
+       case 0x10:
+               return SND_SOC_DAIFMT_CBP_CFC;
+       case 0x01:
+               return SND_SOC_DAIFMT_CBC_CFP;
+       default:
+               return SND_SOC_DAIFMT_CBC_CFC;
+       }
+
+       return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_daifmt_clock_provider_from_bitmap);
+
 unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
                                     const char *prefix,
                                     struct device_node **bitclkmaster,
@@ -3115,20 +3133,7 @@ unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
        if (frame && framemaster)
                *framemaster = of_parse_phandle(np, prop, 0);
 
-       switch ((bit << 4) + frame) {
-       case 0x11:
-               format |= SND_SOC_DAIFMT_CBM_CFM;
-               break;
-       case 0x10:
-               format |= SND_SOC_DAIFMT_CBM_CFS;
-               break;
-       case 0x01:
-               format |= SND_SOC_DAIFMT_CBS_CFM;
-               break;
-       default:
-               format |= SND_SOC_DAIFMT_CBS_CFS;
-               break;
-       }
+       format |= snd_soc_daifmt_clock_provider_from_bitmap((bit << 4) + frame);
 
        return format;
 }