Merge tag 'asoc-v3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v3.13

 - Further work on the dmaengine helpers, including support for
   configuring the parameters for DMA by reading the capabilities of the
   DMA controller which removes some guesswork and magic numbers fromm
   drivers.
 - A refresh of the documentation.
 - Conversions of many drivers to direct regmap API usage in order to
   allow the ASoC level register I/O code to be removed, this will
   hopefully be completed by v3.14.
 - Support for using async register I/O in DAPM, reducing the time taken
   to implement power transitions on systems that support it.

1 files changed, 29 insertions, 10 deletions

diff --git a/sound/soc/codecs/max9850.c b/sound/soc/codecs/max9850.c
index 58c38a5b481..c5dd61785f8 100644
--- a/sound/soc/codecs/max9850.c
+++ b/sound/soc/codecs/max9850.c
@@ -18,6 +18,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
+#include <linux/regmap.h>
 #include <linux/slab.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -27,18 +28,26 @@
 #include "max9850.h"
 
 struct max9850_priv {
+	struct regmap *regmap;
 	unsigned int sysclk;
 };
 
 /* max9850 register cache */
-static const u8 max9850_reg[MAX9850_CACHEREGNUM] = {
-	0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+static const struct reg_default max9850_reg[] = {
+	{  2, 0x0c },
+	{  3, 0x00 },
+	{  4, 0x00 },
+	{  5, 0x00 },
+	{  6, 0x00 },
+	{  7, 0x00 },
+	{  8, 0x00 },
+	{  9, 0x00 },
+	{ 10, 0x00 },
 };
 
 /* these registers are not used at the moment but provided for the sake of
  * completeness */
-static int max9850_volatile_register(struct snd_soc_codec *codec,
-		unsigned int reg)
+static bool max9850_volatile_register(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
 	case MAX9850_STATUSA:
@@ -49,6 +58,15 @@ static int max9850_volatile_register(struct snd_soc_codec *codec,
 	}
 }
 
+static const struct regmap_config max9850_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+
+	.max_register = MAX9850_DIGITAL_AUDIO,
+	.volatile_reg = max9850_volatile_register,
+	.cache_type = REGCACHE_RBTREE,
+};
+
 static const unsigned int max9850_tlv[] = {
 	TLV_DB_RANGE_HEAD(4),
 	0x18, 0x1f, TLV_DB_SCALE_ITEM(-7450, 400, 0),
@@ -225,6 +243,7 @@ static int max9850_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
 static int max9850_set_bias_level(struct snd_soc_codec *codec,
 				  enum snd_soc_bias_level level)
 {
+	struct max9850_priv *max9850 = snd_soc_codec_get_drvdata(codec);
 	int ret;
 
 	switch (level) {
@@ -234,7 +253,7 @@ static int max9850_set_bias_level(struct snd_soc_codec *codec,
 		break;
 	case SND_SOC_BIAS_STANDBY:
 		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
-			ret = snd_soc_cache_sync(codec);
+			ret = regcache_sync(max9850->regmap);
 			if (ret) {
 				dev_err(codec->dev,
 					"Failed to sync cache: %d\n", ret);
@@ -295,7 +314,7 @@ static int max9850_probe(struct snd_soc_codec *codec)
 {
 	int ret;
 
-	ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_I2C);
+	ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP);
 	if (ret < 0) {
 		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
 		return ret;
@@ -316,10 +335,6 @@ static struct snd_soc_codec_driver soc_codec_dev_max9850 = {
 	.suspend =	max9850_suspend,
 	.resume =	max9850_resume,
 	.set_bias_level = max9850_set_bias_level,
-	.reg_cache_size = ARRAY_SIZE(max9850_reg),
-	.reg_word_size = sizeof(u8),
-	.reg_cache_default = max9850_reg,
-	.volatile_register = max9850_volatile_register,
 
 	.controls = max9850_controls,
 	.num_controls = ARRAY_SIZE(max9850_controls),
@@ -340,6 +355,10 @@ static int max9850_i2c_probe(struct i2c_client *i2c,
 	if (max9850 == NULL)
 		return -ENOMEM;
 
+	max9850->regmap = devm_regmap_init_i2c(i2c, &max9850_regmap);
+	if (IS_ERR(max9850->regmap))
+		return PTR_ERR(max9850->regmap);
+
 	i2c_set_clientdata(i2c, max9850);
 
 	ret = snd_soc_register_codec(&i2c->dev,