ASoC: ep93xx: Prepare for DT transition

Merge series from Alexander Sverdlin <alexander.sverdlin@gmail.com>:

This is a preparatory series for EP93xx transition to DT. This patchset is
a pre-requisite and has been tested with the full DT patchset [1].

[1]. git://git.maquefel.me/linux.git branch ep93xx/6.2-rc4-v0

Alexander Sverdlin (3):
  ASoC: ep93xx: i2s: move enable call to startup callback
  ASoC: cs4271: flat regcache, trivial simplifications
  ASoC: ep93xx: i2s: Make it individually selectable

 sound/soc/cirrus/Kconfig      |  6 +++++-
 sound/soc/cirrus/ep93xx-i2s.c | 12 +++++++++++-
 sound/soc/codecs/cs4271-i2c.c |  1 -
 sound/soc/codecs/cs4271-spi.c |  1 -
 sound/soc/codecs/cs4271.c     |  4 ++--
 5 files changed, 18 insertions(+), 6 deletions(-)

--
2.40.0

sound/soc/cirrus/Kconfig

@@ -8,7 +8,11 @@ config SND_EP93XX_SOC
 	  the EP93xx I2S or AC97 interfaces.
 
 config SND_EP93XX_SOC_I2S
-	tristate
+	tristate "I2S controller support for the Cirrus Logic EP93xx series"
+	depends on SND_EP93XX_SOC
+	help
+	  Say Y or M if you want to add support for codecs attached to
+	  the EP93xx I2S interface.
 
 if SND_EP93XX_SOC_I2S
 

sound/soc/cirrus/ep93xx-i2s.c

@@ -208,6 +208,16 @@ static int ep93xx_i2s_dai_probe(struct snd_soc_dai *dai)
 	return 0;
 }
 
+static int ep93xx_i2s_startup(struct snd_pcm_substream *substream,
+			      struct snd_soc_dai *dai)
+{
+	struct ep93xx_i2s_info *info = snd_soc_dai_get_drvdata(dai);
+
+	ep93xx_i2s_enable(info, substream->stream);
+
+	return 0;
+}
+
 static void ep93xx_i2s_shutdown(struct snd_pcm_substream *substream,
 				struct snd_soc_dai *dai)
 {
@@ -348,7 +358,6 @@ static int ep93xx_i2s_hw_params(struct snd_pcm_substream *substream,
 	if (err)
 		return err;
 
-	ep93xx_i2s_enable(info, substream->stream);
 	return 0;
 }
 
@@ -397,6 +406,7 @@ static int ep93xx_i2s_resume(struct snd_soc_component *component)
 #endif
 
 static const struct snd_soc_dai_ops ep93xx_i2s_dai_ops = {
+	.startup	= ep93xx_i2s_startup,
 	.shutdown	= ep93xx_i2s_shutdown,
 	.hw_params	= ep93xx_i2s_hw_params,
 	.set_sysclk	= ep93xx_i2s_set_sysclk,

sound/soc/codecs/cs4271-i2c.c

@@ -17,7 +17,6 @@ static int cs4271_i2c_probe(struct i2c_client *client)
 
 	config = cs4271_regmap_config;
 	config.reg_bits = 8;
-	config.val_bits = 8;
 
 	return cs4271_probe(&client->dev,
 			    devm_regmap_init_i2c(client, &config));

sound/soc/codecs/cs4271-spi.c

@@ -17,7 +17,6 @@ static int cs4271_spi_probe(struct spi_device *spi)
 
 	config = cs4271_regmap_config;
 	config.reg_bits = 16;
-	config.val_bits = 8;
 	config.read_flag_mask = 0x21;
 	config.write_flag_mask = 0x20;
 

sound/soc/codecs/cs4271.c

@@ -689,8 +689,8 @@ const struct regmap_config cs4271_regmap_config = {
 
 	.reg_defaults = cs4271_reg_defaults,
 	.num_reg_defaults = ARRAY_SIZE(cs4271_reg_defaults),
-	.cache_type = REGCACHE_RBTREE,
-
+	.cache_type = REGCACHE_FLAT,
+	.val_bits = 8,
 	.volatile_reg = cs4271_volatile_reg,
 };
 EXPORT_SYMBOL_GPL(cs4271_regmap_config);