Merge branch 'reg-cache' into for-2.6.32

1 files changed, 47 insertions, 80 deletions

diff --git a/sound/soc/codecs/wm8971.c b/sound/soc/codecs/wm8971.c
index 032dca22dbd3..d66efb0546ea 100644
--- a/sound/soc/codecs/wm8971.c
+++ b/sound/soc/codecs/wm8971.c
@@ -59,44 +59,7 @@ static const u16 wm8971_reg[] = {
         0x0079, 0x0079, 0x0079,          /* 40 */
 };
 
-static inline unsigned int wm8971_read_reg_cache(struct snd_soc_codec *codec,
-        unsigned int reg)
-{
-        u16 *cache = codec->reg_cache;
-        if (reg < WM8971_REG_COUNT)
-                return cache[reg];
-
-        return -1;
-}
-
-static inline void wm8971_write_reg_cache(struct snd_soc_codec *codec,
-        unsigned int reg, unsigned int value)
-{
-        u16 *cache = codec->reg_cache;
-        if (reg < WM8971_REG_COUNT)
-                cache[reg] = value;
-}
-
-static int wm8971_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;
-
-        wm8971_write_reg_cache (codec, reg, value);
-        if (codec->hw_write(codec->control_data, data, 2) == 2)
-                return 0;
-        else
-                return -EIO;
-}
-
-#define wm8971_reset(c) wm8971_write(c, WM8971_RESET, 0)
+#define wm8971_reset(c) snd_soc_write(c, WM8971_RESET, 0)
 
 /* WM8971 Controls */
 static const char *wm8971_bass[] = { "Linear Control", "Adaptive Boost" };
@@ -521,7 +484,7 @@ static int wm8971_set_dai_fmt(struct snd_soc_dai *codec_dai,
                 return -EINVAL;
         }
 
-        wm8971_write(codec, WM8971_IFACE, iface);
+        snd_soc_write(codec, WM8971_IFACE, iface);
         return 0;
 }
 
@@ -533,8 +496,8 @@ static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream,
         struct snd_soc_device *socdev = rtd->socdev;
         struct snd_soc_codec *codec = socdev->card->codec;
         struct wm8971_priv *wm8971 = codec->private_data;
-        u16 iface = wm8971_read_reg_cache(codec, WM8971_IFACE) & 0x1f3;
-        u16 srate = wm8971_read_reg_cache(codec, WM8971_SRATE) & 0x1c0;
+        u16 iface = snd_soc_read(codec, WM8971_IFACE) & 0x1f3;
+        u16 srate = snd_soc_read(codec, WM8971_SRATE) & 0x1c0;
         int coeff = get_coeff(wm8971->sysclk, params_rate(params));
 
         /* bit size */
@@ -553,9 +516,9 @@ static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream,
         }
 
         /* set iface & srate */
-        wm8971_write(codec, WM8971_IFACE, iface);
+        snd_soc_write(codec, WM8971_IFACE, iface);
         if (coeff >= 0)
-                wm8971_write(codec, WM8971_SRATE, srate |
+                snd_soc_write(codec, WM8971_SRATE, srate |
                         (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb);
 
         return 0;
@@ -564,33 +527,33 @@ static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream,
 static int wm8971_mute(struct snd_soc_dai *dai, int mute)
 {
         struct snd_soc_codec *codec = dai->codec;
-        u16 mute_reg = wm8971_read_reg_cache(codec, WM8971_ADCDAC) & 0xfff7;
+        u16 mute_reg = snd_soc_read(codec, WM8971_ADCDAC) & 0xfff7;
 
         if (mute)
-                wm8971_write(codec, WM8971_ADCDAC, mute_reg | 0x8);
+                snd_soc_write(codec, WM8971_ADCDAC, mute_reg | 0x8);
         else
-                wm8971_write(codec, WM8971_ADCDAC, mute_reg);
+                snd_soc_write(codec, WM8971_ADCDAC, mute_reg);
         return 0;
 }
 
 static int wm8971_set_bias_level(struct snd_soc_codec *codec,
         enum snd_soc_bias_level level)
 {
-        u16 pwr_reg = wm8971_read_reg_cache(codec, WM8971_PWR1) & 0xfe3e;
+        u16 pwr_reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
 
         switch (level) {
         case SND_SOC_BIAS_ON:
                 /* set vmid to 50k and unmute dac */
-                wm8971_write(codec, WM8971_PWR1, pwr_reg | 0x00c1);
+                snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x00c1);
                 break;
         case SND_SOC_BIAS_PREPARE:
                 break;
         case SND_SOC_BIAS_STANDBY:
                 /* mute dac and set vmid to 500k, enable VREF */
-                wm8971_write(codec, WM8971_PWR1, pwr_reg | 0x0140);
+                snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x0140);
                 break;
         case SND_SOC_BIAS_OFF:
-                wm8971_write(codec, WM8971_PWR1, 0x0001);
+                snd_soc_write(codec, WM8971_PWR1, 0x0001);
                 break;
         }
         codec->bias_level = level;
@@ -667,8 +630,8 @@ static int wm8971_resume(struct platform_device *pdev)
 
         /* charge wm8971 caps */
         if (codec->suspend_bias_level == SND_SOC_BIAS_ON) {
-                reg = wm8971_read_reg_cache(codec, WM8971_PWR1) & 0xfe3e;
-                wm8971_write(codec, WM8971_PWR1, reg | 0x01c0);
+                reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
+                snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0);
                 codec->bias_level = SND_SOC_BIAS_ON;
                 queue_delayed_work(wm8971_workq, &codec->delayed_work,
                         msecs_to_jiffies(1000));
@@ -677,15 +640,14 @@ static int wm8971_resume(struct platform_device *pdev)
         return 0;
 }
 
-static int wm8971_init(struct snd_soc_device *socdev)
+static int wm8971_init(struct snd_soc_device *socdev,
+                       enum snd_soc_control_type control)
 {
         struct snd_soc_codec *codec = socdev->card->codec;
         int reg, ret = 0;
 
         codec->name = "WM8971";
         codec->owner = THIS_MODULE;
-        codec->read = wm8971_read_reg_cache;
-        codec->write = wm8971_write;
         codec->set_bias_level = wm8971_set_bias_level;
         codec->dai = &wm8971_dai;
         codec->reg_cache_size = ARRAY_SIZE(wm8971_reg);
@@ -695,42 +657,48 @@ static int wm8971_init(struct snd_soc_device *socdev)
         if (codec->reg_cache == NULL)
                 return -ENOMEM;
 
+        ret = snd_soc_codec_set_cache_io(codec, 7, 9, control);
+        if (ret < 0) {
+                printk(KERN_ERR "wm8971: failed to set cache I/O: %d\n", ret);
+                goto err;
+        }
+
         wm8971_reset(codec);
 
         /* register pcms */
         ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
         if (ret < 0) {
                 printk(KERN_ERR "wm8971: failed to create pcms\n");
-                goto pcm_err;
+                goto err;
         }
 
         /* charge output caps - set vmid to 5k for quick power up */
-        reg = wm8971_read_reg_cache(codec, WM8971_PWR1) & 0xfe3e;
-        wm8971_write(codec, WM8971_PWR1, reg | 0x01c0);
+        reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
+        snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0);
         codec->bias_level = SND_SOC_BIAS_STANDBY;
         queue_delayed_work(wm8971_workq, &codec->delayed_work,
                 msecs_to_jiffies(1000));
 
         /* set the update bits */
-        reg = wm8971_read_reg_cache(codec, WM8971_LDAC);
-        wm8971_write(codec, WM8971_LDAC, reg | 0x0100);
-        reg = wm8971_read_reg_cache(codec, WM8971_RDAC);
-        wm8971_write(codec, WM8971_RDAC, reg | 0x0100);
-
-        reg = wm8971_read_reg_cache(codec, WM8971_LOUT1V);
-        wm8971_write(codec, WM8971_LOUT1V, reg | 0x0100);
-        reg = wm8971_read_reg_cache(codec, WM8971_ROUT1V);
-        wm8971_write(codec, WM8971_ROUT1V, reg | 0x0100);
-
-        reg = wm8971_read_reg_cache(codec, WM8971_LOUT2V);
-        wm8971_write(codec, WM8971_LOUT2V, reg | 0x0100);
-        reg = wm8971_read_reg_cache(codec, WM8971_ROUT2V);
-        wm8971_write(codec, WM8971_ROUT2V, reg | 0x0100);
-
-        reg = wm8971_read_reg_cache(codec, WM8971_LINVOL);
-        wm8971_write(codec, WM8971_LINVOL, reg | 0x0100);
-        reg = wm8971_read_reg_cache(codec, WM8971_RINVOL);
-        wm8971_write(codec, WM8971_RINVOL, reg | 0x0100);
+        reg = snd_soc_read(codec, WM8971_LDAC);
+        snd_soc_write(codec, WM8971_LDAC, reg | 0x0100);
+        reg = snd_soc_read(codec, WM8971_RDAC);
+        snd_soc_write(codec, WM8971_RDAC, reg | 0x0100);
+
+        reg = snd_soc_read(codec, WM8971_LOUT1V);
+        snd_soc_write(codec, WM8971_LOUT1V, reg | 0x0100);
+        reg = snd_soc_read(codec, WM8971_ROUT1V);
+        snd_soc_write(codec, WM8971_ROUT1V, reg | 0x0100);
+
+        reg = snd_soc_read(codec, WM8971_LOUT2V);
+        snd_soc_write(codec, WM8971_LOUT2V, reg | 0x0100);
+        reg = snd_soc_read(codec, WM8971_ROUT2V);
+        snd_soc_write(codec, WM8971_ROUT2V, reg | 0x0100);
+
+        reg = snd_soc_read(codec, WM8971_LINVOL);
+        snd_soc_write(codec, WM8971_LINVOL, reg | 0x0100);
+        reg = snd_soc_read(codec, WM8971_RINVOL);
+        snd_soc_write(codec, WM8971_RINVOL, reg | 0x0100);
 
         snd_soc_add_controls(codec, wm8971_snd_controls,
                                 ARRAY_SIZE(wm8971_snd_controls));
@@ -745,7 +713,7 @@ static int wm8971_init(struct snd_soc_device *socdev)
 card_err:
         snd_soc_free_pcms(socdev);
         snd_soc_dapm_free(socdev);
-pcm_err:
+err:
         kfree(codec->reg_cache);
         return ret;
 }
@@ -767,7 +735,7 @@ static int wm8971_i2c_probe(struct i2c_client *i2c,
 
         codec->control_data = i2c;
 
-        ret = wm8971_init(socdev);
+        ret = wm8971_init(socdev, SND_SOC_I2C);
         if (ret < 0)
                 pr_err("failed to initialise WM8971\n");
 
@@ -877,7 +845,6 @@ static int wm8971_probe(struct platform_device *pdev)
 
 #if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
         if (setup->i2c_address) {
-                codec->hw_write = (hw_write_t)i2c_master_send;
                 ret = wm8971_add_i2c_device(pdev, setup);
         }
 #endif