ASoC: Factor out WM8711 cache I/O

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

diff --git a/sound/soc/codecs/wm8711.c b/sound/soc/codecs/wm8711.c
index 812283e276039afed039c852df4daf5c2d133c28..c7b1af89297b8e69f26f593193947cdbb60e28e0 100644 (file)
--- a/sound/soc/codecs/wm8711.c
+++ b/sound/soc/codecs/wm8711.c
@@ -48,55 +48,7 @@ static const u16 wm8711_reg[WM8711_CACHEREGNUM] = {
        0x009f, 0x000a, 0x0000, 0x0000
 };
 
-/*
- * read wm8711 register cache
- */
-static inline unsigned int wm8711_read_reg_cache(struct snd_soc_codec *codec,
-       unsigned int reg)
-{
-       u16 *cache = codec->reg_cache;
-       if (reg == WM8711_RESET)
-               return 0;
-       if (reg >= WM8711_CACHEREGNUM)
-               return -1;
-       return cache[reg];
-}
-
-/*
- * write wm8711 register cache
- */
-static inline void wm8711_write_reg_cache(struct snd_soc_codec *codec,
-       u16 reg, unsigned int value)
-{
-       u16 *cache = codec->reg_cache;
-       if (reg >= WM8711_CACHEREGNUM)
-               return;
-       cache[reg] = value;
-}
-
-/*
- * write to the WM8711 register space
- */
-static int wm8711_write(struct snd_soc_codec *codec, unsigned int reg,
-       unsigned int value)
-{
-       u8 data[2];
-
-       /* data is
-        *   D15..D9 WM8753 register offset
-        *   D8...D0 register data
-        */
-       data[0] = (reg << 1) | ((value >> 8) & 0x0001);
-       data[1] = value & 0x00ff;
-
-       wm8711_write_reg_cache(codec, reg, value);
-       if (codec->hw_write(codec->control_data, data, 2) == 2)
-               return 0;
-       else
-               return -EIO;
-}
-
-#define wm8711_reset(c)        wm8711_write(c, WM8711_RESET, 0)
+#define wm8711_reset(c)        snd_soc_write(c, WM8711_RESET, 0)
 
 static const struct snd_kcontrol_new wm8711_snd_controls[] = {
 
@@ -224,12 +176,12 @@ static int wm8711_hw_params(struct snd_pcm_substream *substream,
 {
        struct snd_soc_codec *codec = dai->codec;
        struct wm8711_priv *wm8711 = codec->private_data;
-       u16 iface = wm8711_read_reg_cache(codec, WM8711_IFACE) & 0xfffc;
+       u16 iface = snd_soc_read(codec, WM8711_IFACE) & 0xfffc;
        int i = get_coeff(wm8711->sysclk, params_rate(params));
        u16 srate = (coeff_div[i].sr << 2) |
                (coeff_div[i].bosr << 1) | coeff_div[i].usb;
 
-       wm8711_write(codec, WM8711_SRATE, srate);
+       snd_soc_write(codec, WM8711_SRATE, srate);
 
        /* bit size */
        switch (params_format(params)) {
@@ -243,7 +195,7 @@ static int wm8711_hw_params(struct snd_pcm_substream *substream,
                break;
        }
 
-       wm8711_write(codec, WM8711_IFACE, iface);
+       snd_soc_write(codec, WM8711_IFACE, iface);
        return 0;
 }
 
@@ -253,7 +205,7 @@ static int wm8711_pcm_prepare(struct snd_pcm_substream *substream,
        struct snd_soc_codec *codec = dai->codec;
 
        /* set active */
-       wm8711_write(codec, WM8711_ACTIVE, 0x0001);
+       snd_soc_write(codec, WM8711_ACTIVE, 0x0001);
 
        return 0;
 }
@@ -266,19 +218,19 @@ static void wm8711_shutdown(struct snd_pcm_substream *substream,
        /* deactivate */
        if (!codec->active) {
                udelay(50);
-               wm8711_write(codec, WM8711_ACTIVE, 0x0);
+               snd_soc_write(codec, WM8711_ACTIVE, 0x0);
        }
 }
 
 static int wm8711_mute(struct snd_soc_dai *dai, int mute)
 {
        struct snd_soc_codec *codec = dai->codec;
-       u16 mute_reg = wm8711_read_reg_cache(codec, WM8711_APDIGI) & 0xfff7;
+       u16 mute_reg = snd_soc_read(codec, WM8711_APDIGI) & 0xfff7;
 
        if (mute)
-               wm8711_write(codec, WM8711_APDIGI, mute_reg | 0x8);
+               snd_soc_write(codec, WM8711_APDIGI, mute_reg | 0x8);
        else
-               wm8711_write(codec, WM8711_APDIGI, mute_reg);
+               snd_soc_write(codec, WM8711_APDIGI, mute_reg);
 
        return 0;
 }
@@ -356,7 +308,7 @@ static int wm8711_set_dai_fmt(struct snd_soc_dai *codec_dai,
        }
 
        /* set iface */
-       wm8711_write(codec, WM8711_IFACE, iface);
+       snd_soc_write(codec, WM8711_IFACE, iface);
        return 0;
 }
 
@@ -364,20 +316,20 @@ static int wm8711_set_dai_fmt(struct snd_soc_dai *codec_dai,
 static int wm8711_set_bias_level(struct snd_soc_codec *codec,
        enum snd_soc_bias_level level)
 {
-       u16 reg = wm8711_read_reg_cache(codec, WM8711_PWR) & 0xff7f;
+       u16 reg = snd_soc_read(codec, WM8711_PWR) & 0xff7f;
 
        switch (level) {
        case SND_SOC_BIAS_ON:
-               wm8711_write(codec, WM8711_PWR, reg);
+               snd_soc_write(codec, WM8711_PWR, reg);
                break;
        case SND_SOC_BIAS_PREPARE:
                break;
        case SND_SOC_BIAS_STANDBY:
-               wm8711_write(codec, WM8711_PWR, reg | 0x0040);
+               snd_soc_write(codec, WM8711_PWR, reg | 0x0040);
                break;
        case SND_SOC_BIAS_OFF:
-               wm8711_write(codec, WM8711_ACTIVE, 0x0);
-               wm8711_write(codec, WM8711_PWR, 0xffff);
+               snd_soc_write(codec, WM8711_ACTIVE, 0x0);
+               snd_soc_write(codec, WM8711_PWR, 0xffff);
                break;
        }
        codec->bias_level = level;
@@ -419,7 +371,7 @@ static int wm8711_suspend(struct platform_device *pdev, pm_message_t state)
        struct snd_soc_device *socdev = platform_get_drvdata(pdev);
        struct snd_soc_codec *codec = socdev->card->codec;
 
-       wm8711_write(codec, WM8711_ACTIVE, 0x0);
+       snd_soc_write(codec, WM8711_ACTIVE, 0x0);
        wm8711_set_bias_level(codec, SND_SOC_BIAS_OFF);
        return 0;
 }
@@ -501,7 +453,8 @@ struct snd_soc_codec_device soc_codec_dev_wm8711 = {
 };
 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8711);
 
-static int wm8711_register(struct wm8711_priv *wm8711)
+static int wm8711_register(struct wm8711_priv *wm8711,
+                          enum snd_soc_control_type control)
 {
        int ret;
        struct snd_soc_codec *codec = &wm8711->codec;
@@ -519,8 +472,6 @@ static int wm8711_register(struct wm8711_priv *wm8711)
        codec->private_data = wm8711;
        codec->name = "WM8711";
        codec->owner = THIS_MODULE;
-       codec->read = wm8711_read_reg_cache;
-       codec->write = wm8711_write;
        codec->bias_level = SND_SOC_BIAS_OFF;
        codec->set_bias_level = wm8711_set_bias_level;
        codec->dai = &wm8711_dai;
@@ -530,10 +481,16 @@ static int wm8711_register(struct wm8711_priv *wm8711)
 
        memcpy(codec->reg_cache, wm8711_reg, sizeof(wm8711_reg));
 
+       ret = snd_soc_codec_set_cache_io(codec, 7, 9, control);
+       if (ret < 0) {
+               dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
+               goto err;
+       }
+
        ret = wm8711_reset(codec);
        if (ret < 0) {
                dev_err(codec->dev, "Failed to issue reset\n");
-               return ret;
+               goto err;
        }
 
        wm8711_dai.dev = codec->dev;
@@ -541,27 +498,32 @@ static int wm8711_register(struct wm8711_priv *wm8711)
        wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
        /* Latch the update bits */
-       reg = wm8711_read_reg_cache(codec, WM8711_LOUT1V);
-       wm8711_write(codec, WM8711_LOUT1V, reg | 0x0100);
-       reg = wm8711_read_reg_cache(codec, WM8711_ROUT1V);
-       wm8711_write(codec, WM8711_ROUT1V, reg | 0x0100);
+       reg = snd_soc_read(codec, WM8711_LOUT1V);
+       snd_soc_write(codec, WM8711_LOUT1V, reg | 0x0100);
+       reg = snd_soc_read(codec, WM8711_ROUT1V);
+       snd_soc_write(codec, WM8711_ROUT1V, reg | 0x0100);
 
        wm8711_codec = codec;
 
        ret = snd_soc_register_codec(codec);
        if (ret != 0) {
                dev_err(codec->dev, "Failed to register codec: %d\n", ret);
-               return ret;
+               goto err;
        }
 
        ret = snd_soc_register_dai(&wm8711_dai);
        if (ret != 0) {
                dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
-               snd_soc_unregister_codec(codec);
-               return ret;
+               goto err_codec;
        }
 
        return 0;
+
+err_codec:
+       snd_soc_unregister_codec(codec);
+err:
+       kfree(wm8711);
+       return ret;
 }
 
 static void wm8711_unregister(struct wm8711_priv *wm8711)
@@ -592,7 +554,7 @@ static __devinit int wm8711_i2c_probe(struct i2c_client *i2c,
 
        codec->dev = &i2c->dev;
 
-       return wm8711_register(wm8711);
+       return wm8711_register(wm8711, SND_SOC_I2C);
 }
 
 static __devexit int wm8711_i2c_remove(struct i2c_client *client)