Merge branch 'reg-cache' into for-2.6.32

1 files changed, 53 insertions, 121 deletions

diff --git a/sound/soc/codecs/wm8510.c b/sound/soc/codecs/wm8510.c
index 261d4cb75964..060d5d06ba95 100644
--- a/sound/soc/codecs/wm8510.c
+++ b/sound/soc/codecs/wm8510.c
@@ -58,55 +58,7 @@ static const u16 wm8510_reg[WM8510_CACHEREGNUM] = {
 #define WM8510_POWER1_BIASEN  0x08
 #define WM8510_POWER1_BUFIOEN 0x10
 
-/*
- * read wm8510 register cache
- */
-static inline unsigned int wm8510_read_reg_cache(struct snd_soc_codec *codec,
-        unsigned int reg)
-{
-        u16 *cache = codec->reg_cache;
-        if (reg == WM8510_RESET)
-                return 0;
-        if (reg >= WM8510_CACHEREGNUM)
-                return -1;
-        return cache[reg];
-}
-
-/*
- * write wm8510 register cache
- */
-static inline void wm8510_write_reg_cache(struct snd_soc_codec *codec,
-        u16 reg, unsigned int value)
-{
-        u16 *cache = codec->reg_cache;
-        if (reg >= WM8510_CACHEREGNUM)
-                return;
-        cache[reg] = value;
-}
-
-/*
- * write to the WM8510 register space
- */
-static int wm8510_write(struct snd_soc_codec *codec, unsigned int reg,
-        unsigned int value)
-{
-        u8 data[2];
-
-        /* data is
-         *   D15..D9 WM8510 register offset
-         *   D8...D0 register data
-         */
-        data[0] = (reg << 1) | ((value >> 8) & 0x0001);
-        data[1] = value & 0x00ff;
-
-        wm8510_write_reg_cache(codec, reg, value);
-        if (codec->hw_write(codec->control_data, data, 2) == 2)
-                return 0;
-        else
-                return -EIO;
-}
-
-#define wm8510_reset(c) wm8510_write(c, WM8510_RESET, 0)
+#define wm8510_reset(c) snd_soc_write(c, WM8510_RESET, 0)
 
 static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" };
 static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
@@ -327,27 +279,27 @@ static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai,
 
         if (freq_in == 0 || freq_out == 0) {
                 /* Clock CODEC directly from MCLK */
-                reg = wm8510_read_reg_cache(codec, WM8510_CLOCK);
-                wm8510_write(codec, WM8510_CLOCK, reg & 0x0ff);
+                reg = snd_soc_read(codec, WM8510_CLOCK);
+                snd_soc_write(codec, WM8510_CLOCK, reg & 0x0ff);
 
                 /* Turn off PLL */
-                reg = wm8510_read_reg_cache(codec, WM8510_POWER1);
-                wm8510_write(codec, WM8510_POWER1, reg & 0x1df);
+                reg = snd_soc_read(codec, WM8510_POWER1);
+                snd_soc_write(codec, WM8510_POWER1, reg & 0x1df);
                 return 0;
         }
 
         pll_factors(freq_out*4, freq_in);
 
-        wm8510_write(codec, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n);
-        wm8510_write(codec, WM8510_PLLK1, pll_div.k >> 18);
-        wm8510_write(codec, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff);
-        wm8510_write(codec, WM8510_PLLK3, pll_div.k & 0x1ff);
-        reg = wm8510_read_reg_cache(codec, WM8510_POWER1);
-        wm8510_write(codec, WM8510_POWER1, reg | 0x020);
+        snd_soc_write(codec, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n);
+        snd_soc_write(codec, WM8510_PLLK1, pll_div.k >> 18);
+        snd_soc_write(codec, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff);
+        snd_soc_write(codec, WM8510_PLLK3, pll_div.k & 0x1ff);
+        reg = snd_soc_read(codec, WM8510_POWER1);
+        snd_soc_write(codec, WM8510_POWER1, reg | 0x020);
 
         /* Run CODEC from PLL instead of MCLK */
-        reg = wm8510_read_reg_cache(codec, WM8510_CLOCK);
-        wm8510_write(codec, WM8510_CLOCK, reg | 0x100);
+        reg = snd_soc_read(codec, WM8510_CLOCK);
+        snd_soc_write(codec, WM8510_CLOCK, reg | 0x100);
 
         return 0;
 }
@@ -363,24 +315,24 @@ static int wm8510_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
 
         switch (div_id) {
         case WM8510_OPCLKDIV:
-                reg = wm8510_read_reg_cache(codec, WM8510_GPIO) & 0x1cf;
-                wm8510_write(codec, WM8510_GPIO, reg | div);
+                reg = snd_soc_read(codec, WM8510_GPIO) & 0x1cf;
+                snd_soc_write(codec, WM8510_GPIO, reg | div);
                 break;
         case WM8510_MCLKDIV:
-                reg = wm8510_read_reg_cache(codec, WM8510_CLOCK) & 0x11f;
-                wm8510_write(codec, WM8510_CLOCK, reg | div);
+                reg = snd_soc_read(codec, WM8510_CLOCK) & 0x11f;
+                snd_soc_write(codec, WM8510_CLOCK, reg | div);
                 break;
         case WM8510_ADCCLK:
-                reg = wm8510_read_reg_cache(codec, WM8510_ADC) & 0x1f7;
-                wm8510_write(codec, WM8510_ADC, reg | div);
+                reg = snd_soc_read(codec, WM8510_ADC) & 0x1f7;
+                snd_soc_write(codec, WM8510_ADC, reg | div);
                 break;
         case WM8510_DACCLK:
-                reg = wm8510_read_reg_cache(codec, WM8510_DAC) & 0x1f7;
-                wm8510_write(codec, WM8510_DAC, reg | div);
+                reg = snd_soc_read(codec, WM8510_DAC) & 0x1f7;
+                snd_soc_write(codec, WM8510_DAC, reg | div);
                 break;
         case WM8510_BCLKDIV:
-                reg = wm8510_read_reg_cache(codec, WM8510_CLOCK) & 0x1e3;
-                wm8510_write(codec, WM8510_CLOCK, reg | div);
+                reg = snd_soc_read(codec, WM8510_CLOCK) & 0x1e3;
+                snd_soc_write(codec, WM8510_CLOCK, reg | div);
                 break;
         default:
                 return -EINVAL;
@@ -394,7 +346,7 @@ static int wm8510_set_dai_fmt(struct snd_soc_dai *codec_dai,
 {
         struct snd_soc_codec *codec = codec_dai->codec;
         u16 iface = 0;
-        u16 clk = wm8510_read_reg_cache(codec, WM8510_CLOCK) & 0x1fe;
+        u16 clk = snd_soc_read(codec, WM8510_CLOCK) & 0x1fe;
 
         /* set master/slave audio interface */
         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
@@ -441,8 +393,8 @@ static int wm8510_set_dai_fmt(struct snd_soc_dai *codec_dai,
                 return -EINVAL;
         }
 
-        wm8510_write(codec, WM8510_IFACE, iface);
-        wm8510_write(codec, WM8510_CLOCK, clk);
+        snd_soc_write(codec, WM8510_IFACE, iface);
+        snd_soc_write(codec, WM8510_CLOCK, clk);
         return 0;
 }
 
@@ -453,8 +405,8 @@ static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream,
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_device *socdev = rtd->socdev;
         struct snd_soc_codec *codec = socdev->card->codec;
-        u16 iface = wm8510_read_reg_cache(codec, WM8510_IFACE) & 0x19f;
-        u16 adn = wm8510_read_reg_cache(codec, WM8510_ADD) & 0x1f1;
+        u16 iface = snd_soc_read(codec, WM8510_IFACE) & 0x19f;
+        u16 adn = snd_soc_read(codec, WM8510_ADD) & 0x1f1;
 
         /* bit size */
         switch (params_format(params)) {
@@ -493,20 +445,20 @@ static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream,
                 break;
         }
 
-        wm8510_write(codec, WM8510_IFACE, iface);
-        wm8510_write(codec, WM8510_ADD, adn);
+        snd_soc_write(codec, WM8510_IFACE, iface);
+        snd_soc_write(codec, WM8510_ADD, adn);
         return 0;
 }
 
 static int wm8510_mute(struct snd_soc_dai *dai, int mute)
 {
         struct snd_soc_codec *codec = dai->codec;
-        u16 mute_reg = wm8510_read_reg_cache(codec, WM8510_DAC) & 0xffbf;
+        u16 mute_reg = snd_soc_read(codec, WM8510_DAC) & 0xffbf;
 
         if (mute)
-                wm8510_write(codec, WM8510_DAC, mute_reg | 0x40);
+                snd_soc_write(codec, WM8510_DAC, mute_reg | 0x40);
         else
-                wm8510_write(codec, WM8510_DAC, mute_reg);
+                snd_soc_write(codec, WM8510_DAC, mute_reg);
         return 0;
 }
 
@@ -514,13 +466,13 @@ static int wm8510_mute(struct snd_soc_dai *dai, int mute)
 static int wm8510_set_bias_level(struct snd_soc_codec *codec,
         enum snd_soc_bias_level level)
 {
-        u16 power1 = wm8510_read_reg_cache(codec, WM8510_POWER1) & ~0x3;
+        u16 power1 = snd_soc_read(codec, WM8510_POWER1) & ~0x3;
 
         switch (level) {
         case SND_SOC_BIAS_ON:
         case SND_SOC_BIAS_PREPARE:
                 power1 |= 0x1;  /* VMID 50k */
-                wm8510_write(codec, WM8510_POWER1, power1);
+                snd_soc_write(codec, WM8510_POWER1, power1);
                 break;
 
         case SND_SOC_BIAS_STANDBY:
@@ -528,18 +480,18 @@ static int wm8510_set_bias_level(struct snd_soc_codec *codec,
 
                 if (codec->bias_level == SND_SOC_BIAS_OFF) {
                         /* Initial cap charge at VMID 5k */
-                        wm8510_write(codec, WM8510_POWER1, power1 | 0x3);
+                        snd_soc_write(codec, WM8510_POWER1, power1 | 0x3);
                         mdelay(100);
                 }
 
                 power1 |= 0x2;  /* VMID 500k */
-                wm8510_write(codec, WM8510_POWER1, power1);
+                snd_soc_write(codec, WM8510_POWER1, power1);
                 break;
 
         case SND_SOC_BIAS_OFF:
-                wm8510_write(codec, WM8510_POWER1, 0);
-                wm8510_write(codec, WM8510_POWER2, 0);
-                wm8510_write(codec, WM8510_POWER3, 0);
+                snd_soc_write(codec, WM8510_POWER1, 0);
+                snd_soc_write(codec, WM8510_POWER2, 0);
+                snd_soc_write(codec, WM8510_POWER3, 0);
                 break;
         }
 
@@ -613,15 +565,14 @@ static int wm8510_resume(struct platform_device *pdev)
  * initialise the WM8510 driver
  * register the mixer and dsp interfaces with the kernel
  */
-static int wm8510_init(struct snd_soc_device *socdev)
+static int wm8510_init(struct snd_soc_device *socdev,
+                       enum snd_soc_control_type control)
 {
         struct snd_soc_codec *codec = socdev->card->codec;
         int ret = 0;
 
         codec->name = "WM8510";
         codec->owner = THIS_MODULE;
-        codec->read = wm8510_read_reg_cache;
-        codec->write = wm8510_write;
         codec->set_bias_level = wm8510_set_bias_level;
         codec->dai = &wm8510_dai;
         codec->num_dai = 1;
@@ -631,13 +582,20 @@ static int wm8510_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 "wm8510: failed to set cache I/O: %d\n",
+                       ret);
+                goto err;
+        }
+
         wm8510_reset(codec);
 
         /* register pcms */
         ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
         if (ret < 0) {
                 printk(KERN_ERR "wm8510: failed to create pcms\n");
-                goto pcm_err;
+                goto err;
         }
 
         /* power on device */
@@ -656,7 +614,7 @@ static int wm8510_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;
 }
@@ -679,7 +637,7 @@ static int wm8510_i2c_probe(struct i2c_client *i2c,
         i2c_set_clientdata(i2c, codec);
         codec->control_data = i2c;
 
-        ret = wm8510_init(socdev);
+        ret = wm8510_init(socdev, SND_SOC_I2C);
         if (ret < 0)
                 pr_err("failed to initialise WM8510\n");
 
@@ -759,7 +717,7 @@ static int __devinit wm8510_spi_probe(struct spi_device *spi)
 
         codec->control_data = spi;
 
-        ret = wm8510_init(socdev);
+        ret = wm8510_init(socdev, SND_SOC_SPI);
         if (ret < 0)
                 dev_err(&spi->dev, "failed to initialise WM8510\n");
 
@@ -780,30 +738,6 @@ static struct spi_driver wm8510_spi_driver = {
         .probe          = wm8510_spi_probe,
         .remove         = __devexit_p(wm8510_spi_remove),
 };
-
-static int wm8510_spi_write(struct spi_device *spi, const char *data, int len)
-{
-        struct spi_transfer t;
-        struct spi_message m;
-        u8 msg[2];
-
-        if (len <= 0)
-                return 0;
-
-        msg[0] = data[0];
-        msg[1] = data[1];
-
-        spi_message_init(&m);
-        memset(&t, 0, (sizeof t));
-
-        t.tx_buf = &msg[0];
-        t.len = len;
-
-        spi_message_add_tail(&t, &m);
-        spi_sync(spi, &m);
-
-        return len;
-}
 #endif /* CONFIG_SPI_MASTER */
 
 static int wm8510_probe(struct platform_device *pdev)
@@ -828,13 +762,11 @@ static int wm8510_probe(struct platform_device *pdev)
         wm8510_socdev = socdev;
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
         if (setup->i2c_address) {
-                codec->hw_write = (hw_write_t)i2c_master_send;
                 ret = wm8510_add_i2c_device(pdev, setup);
         }
 #endif
 #if defined(CONFIG_SPI_MASTER)
         if (setup->spi) {
-                codec->hw_write = (hw_write_t)wm8510_spi_write;
                 ret = spi_register_driver(&wm8510_spi_driver);
                 if (ret != 0)
                         printk(KERN_ERR "can't add spi driver");