ASoC: wm8776: Convert to direct regmap API usage

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 60 insertions, 15 deletions

diff --git a/sound/soc/codecs/wm8776.c b/sound/soc/codecs/wm8776.c
index 879c356a9045..c32249ddb2e0 100644
--- a/sound/soc/codecs/wm8776.c
+++ b/sound/soc/codecs/wm8776.c
@@ -19,6 +19,7 @@
 #include <linux/pm.h>
 #include <linux/i2c.h>
 #include <linux/of_device.h>
+#include <linux/regmap.h>
 #include <linux/spi/spi.h>
 #include <linux/slab.h>
 #include <sound/core.h>
@@ -37,18 +38,46 @@ enum wm8776_chip_type {
 
 /* codec private data */
 struct wm8776_priv {
-        enum snd_soc_control_type control_type;
+        struct regmap *regmap;
         int sysclk[2];
 };
 
-static const u16 wm8776_reg[WM8776_CACHEREGNUM] = {
-        0x79, 0x79, 0x79, 0xff, 0xff,  /* 4 */
-        0xff, 0x00, 0x90, 0x00, 0x00,  /* 9 */
-        0x22, 0x22, 0x22, 0x08, 0xcf,  /* 14 */
-        0xcf, 0x7b, 0x00, 0x32, 0x00,  /* 19 */
-        0xa6, 0x01, 0x01
+static const struct reg_default wm8776_reg_defaults[] = {
+        {  0, 0x79 },
+        {  1, 0x79 },
+        {  2, 0x79 },
+        {  3, 0xff },
+        {  4, 0xff },
+        {  5, 0xff },
+        {  6, 0x00 },
+        {  7, 0x90 },
+        {  8, 0x00 },
+        {  9, 0x00 },
+        { 10, 0x22 },
+        { 11, 0x22 },
+        { 12, 0x22 },
+        { 13, 0x08 },
+        { 14, 0xcf },
+        { 15, 0xcf },
+        { 16, 0x7b },
+        { 17, 0x00 },
+        { 18, 0x32 },
+        { 19, 0x00 },
+        { 20, 0xa6 },
+        { 21, 0x01 },
+        { 22, 0x01 },
 };
 
+static bool wm8776_volatile(struct device *dev, unsigned int reg)
+{
+        switch (reg) {
+        case WM8776_RESET:
+                return true;
+        default:
+                return false;
+        }
+}
+
 static int wm8776_reset(struct snd_soc_codec *codec)
 {
         return snd_soc_write(codec, WM8776_RESET, 0);
@@ -306,6 +335,8 @@ static int wm8776_set_sysclk(struct snd_soc_dai *dai,
 static int wm8776_set_bias_level(struct snd_soc_codec *codec,
                                  enum snd_soc_bias_level level)
 {
+        struct wm8776_priv *wm8776 = snd_soc_codec_get_drvdata(codec);
+
         switch (level) {
         case SND_SOC_BIAS_ON:
                 break;
@@ -313,7 +344,7 @@ static int wm8776_set_bias_level(struct snd_soc_codec *codec,
                 break;
         case SND_SOC_BIAS_STANDBY:
                 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
-                        snd_soc_cache_sync(codec);
+                        regcache_sync(wm8776->regmap);
 
                         /* Disable the global powerdown; DAPM does the rest */
                         snd_soc_update_bits(codec, WM8776_PWRDOWN, 1, 0);
@@ -396,10 +427,9 @@ static int wm8776_resume(struct snd_soc_codec *codec)
 
 static int wm8776_probe(struct snd_soc_codec *codec)
 {
-        struct wm8776_priv *wm8776 = snd_soc_codec_get_drvdata(codec);
         int ret = 0;
 
-        ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8776->control_type);
+        ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP);
         if (ret < 0) {
                 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
                 return ret;
@@ -434,9 +464,6 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8776 = {
         .suspend =      wm8776_suspend,
         .resume =       wm8776_resume,
         .set_bias_level = wm8776_set_bias_level,
-        .reg_cache_size = ARRAY_SIZE(wm8776_reg),
-        .reg_word_size = sizeof(u16),
-        .reg_cache_default = wm8776_reg,
 
         .controls = wm8776_snd_controls,
         .num_controls = ARRAY_SIZE(wm8776_snd_controls),
@@ -452,6 +479,18 @@ static const struct of_device_id wm8776_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, wm8776_of_match);
 
+static const struct regmap_config wm8776_regmap = {
+        .reg_bits = 7,
+        .val_bits = 9,
+        .max_register = WM8776_RESET,
+
+        .reg_defaults = wm8776_reg_defaults,
+        .num_reg_defaults = ARRAY_SIZE(wm8776_reg_defaults),
+        .cache_type = REGCACHE_RBTREE,
+
+        .volatile_reg = wm8776_volatile,
+};
+
 #if defined(CONFIG_SPI_MASTER)
 static int __devinit wm8776_spi_probe(struct spi_device *spi)
 {
@@ -463,7 +502,10 @@ static int __devinit wm8776_spi_probe(struct spi_device *spi)
         if (wm8776 == NULL)
                 return -ENOMEM;
 
-        wm8776->control_type = SND_SOC_SPI;
+        wm8776->regmap = devm_regmap_init_spi(spi, &wm8776_regmap);
+        if (IS_ERR(wm8776->regmap))
+                return PTR_ERR(wm8776->regmap);
+
         spi_set_drvdata(spi, wm8776);
 
         ret = snd_soc_register_codec(&spi->dev,
@@ -501,8 +543,11 @@ static __devinit int wm8776_i2c_probe(struct i2c_client *i2c,
         if (wm8776 == NULL)
                 return -ENOMEM;
 
+        wm8776->regmap = devm_regmap_init_i2c(i2c, &wm8776_regmap);
+        if (IS_ERR(wm8776->regmap))
+                return PTR_ERR(wm8776->regmap);
+
         i2c_set_clientdata(i2c, wm8776);
-        wm8776->control_type = SND_SOC_I2C;
 
         ret =  snd_soc_register_codec(&i2c->dev,
                         &soc_codec_dev_wm8776, wm8776_dai, ARRAY_SIZE(wm8776_dai));