ASoC: da7210: convert to soc-cache

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/da7210.c

@@ -161,7 +161,6 @@ static const struct snd_kcontrol_new da7210_snd_controls[] = {
 /* Codec private data */
 struct da7210_priv {
 	enum snd_soc_control_type control_type;
-	void *control_data;
 };
 
 /*
@@ -188,50 +187,16 @@ static const u8 da7210_reg[] = {
 	0x00,						/* R88       */
 };
 
-/*
- * Read da7210 register cache
- */
-static inline u32 da7210_read_reg_cache(struct snd_soc_codec *codec, u32 reg)
-{
-	u8 *cache = codec->reg_cache;
-	BUG_ON(reg >= ARRAY_SIZE(da7210_reg));
-	return cache[reg];
-}
-
-/*
- * Write to the da7210 register space
- */
-static int da7210_write(struct snd_soc_codec *codec, u32 reg, u32 value)
-{
-	u8 *cache = codec->reg_cache;
-	u8 data[2];
-
-	BUG_ON(codec->driver->volatile_register);
-
-	data[0] = reg & 0xff;
-	data[1] = value & 0xff;
-
-	if (reg >= codec->driver->reg_cache_size)
-		return -EIO;
-
-	if (2 != codec->hw_write(codec->control_data, data, 2))
-		return -EIO;
-
-	cache[reg] = value;
-	return 0;
-}
-
-/*
- * Read from the da7210 register space.
- */
-static inline u32 da7210_read(struct snd_soc_codec *codec, u32 reg)
+static int da7210_volatile_register(struct snd_soc_codec *codec,
+				    unsigned int reg)
 {
-	if (DA7210_STATUS == reg)
-		return i2c_smbus_read_byte_data(codec->control_data, reg);
-
-	return da7210_read_reg_cache(codec, reg);
+	switch (reg) {
+	case DA7210_STATUS:
+		return 1;
+	default:
+		return 0;
+	}
 }
-
 static int da7210_startup(struct snd_pcm_substream *substream,
 			  struct snd_soc_dai *dai)
 {
@@ -270,13 +235,13 @@ static int da7210_hw_params(struct snd_pcm_substream *substream,
 	u32 fs, bypass;
 
 	/* set DAI source to Left and Right ADC */
-	da7210_write(codec, DA7210_DAI_SRC_SEL,
+	snd_soc_write(codec, DA7210_DAI_SRC_SEL,
 		     DA7210_DAI_OUT_R_SRC | DA7210_DAI_OUT_L_SRC);
 
 	/* Enable DAI */
-	da7210_write(codec, DA7210_DAI_CFG3, DA7210_DAI_OE | DA7210_DAI_EN);
+	snd_soc_write(codec, DA7210_DAI_CFG3, DA7210_DAI_OE | DA7210_DAI_EN);
 
-	dai_cfg1 = 0xFC & da7210_read(codec, DA7210_DAI_CFG1);
+	dai_cfg1 = 0xFC & snd_soc_read(codec, DA7210_DAI_CFG1);
 
 	switch (params_format(params)) {
 	case SNDRV_PCM_FORMAT_S16_LE:
@@ -289,7 +254,7 @@ static int da7210_hw_params(struct snd_pcm_substream *substream,
 		return -EINVAL;
 	}
 
-	da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1);
+	snd_soc_write(codec, DA7210_DAI_CFG1, dai_cfg1);
 
 	hpf_reg = (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) ?
 		DA7210_DAC_HPF : DA7210_ADC_HPF;
@@ -382,8 +347,8 @@ static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt)
 	u32 dai_cfg1;
 	u32 dai_cfg3;
 
-	dai_cfg1 = 0x7f & da7210_read(codec, DA7210_DAI_CFG1);
-	dai_cfg3 = 0xfc & da7210_read(codec, DA7210_DAI_CFG3);
+	dai_cfg1 = 0x7f & snd_soc_read(codec, DA7210_DAI_CFG1);
+	dai_cfg3 = 0xfc & snd_soc_read(codec, DA7210_DAI_CFG3);
 
 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 	case SND_SOC_DAIFMT_CBM_CFM:
@@ -411,8 +376,8 @@ static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt)
 	 */
 	dai_cfg1 |= DA7210_DAI_FLEN_64BIT;
 
-	da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1);
-	da7210_write(codec, DA7210_DAI_CFG3, dai_cfg3);
+	snd_soc_write(codec, DA7210_DAI_CFG1, dai_cfg1);
+	snd_soc_write(codec, DA7210_DAI_CFG3, dai_cfg3);
 
 	return 0;
 }
@@ -451,11 +416,15 @@ static struct snd_soc_dai_driver da7210_dai = {
 static int da7210_probe(struct snd_soc_codec *codec)
 {
 	struct da7210_priv *da7210 = snd_soc_codec_get_drvdata(codec);
+	int ret;
 
 	dev_info(codec->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);
 
-	codec->control_data	= da7210->control_data;
-	codec->hw_write		= (hw_write_t)i2c_master_send;
+	ret = snd_soc_codec_set_cache_io(codec, 8, 8, da7210->control_type);
+	if (ret < 0) {
+		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
+		return ret;
+	}
 
 	/* FIXME
 	 *
@@ -472,8 +441,8 @@ static int da7210_probe(struct snd_soc_codec *codec)
 	/*
 	 * make sure that DA7210 use bypass mode before start up
 	 */
-	da7210_write(codec, DA7210_STARTUP1, 0);
-	da7210_write(codec, DA7210_PLL_DIV3,
+	snd_soc_write(codec, DA7210_STARTUP1, 0);
+	snd_soc_write(codec, DA7210_PLL_DIV3,
 		     DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP);
 
 	/*
@@ -481,36 +450,36 @@ static int da7210_probe(struct snd_soc_codec *codec)
 	 */
 
 	/* Enable Left & Right MIC PGA and Mic Bias */
-	da7210_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN | DA7210_MICBIAS_EN);
-	da7210_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN);
+	snd_soc_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN | DA7210_MICBIAS_EN);
+	snd_soc_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN);
 
 	/* Enable Left and Right input PGA */
-	da7210_write(codec, DA7210_INMIX_L, DA7210_IN_L_EN);
-	da7210_write(codec, DA7210_INMIX_R, DA7210_IN_R_EN);
+	snd_soc_write(codec, DA7210_INMIX_L, DA7210_IN_L_EN);
+	snd_soc_write(codec, DA7210_INMIX_R, DA7210_IN_R_EN);
 
 	/* Enable Left and Right ADC */
-	da7210_write(codec, DA7210_ADC, DA7210_ADC_L_EN | DA7210_ADC_R_EN);
+	snd_soc_write(codec, DA7210_ADC, DA7210_ADC_L_EN | DA7210_ADC_R_EN);
 
 	/*
 	 * DAC settings
 	 */
 
 	/* Enable Left and Right DAC */
-	da7210_write(codec, DA7210_DAC_SEL,
+	snd_soc_write(codec, DA7210_DAC_SEL,
 		     DA7210_DAC_L_SRC_DAI_L | DA7210_DAC_L_EN |
 		     DA7210_DAC_R_SRC_DAI_R | DA7210_DAC_R_EN);
 
 	/* Enable Left and Right out PGA */
-	da7210_write(codec, DA7210_OUTMIX_L, DA7210_OUT_L_EN);
-	da7210_write(codec, DA7210_OUTMIX_R, DA7210_OUT_R_EN);
+	snd_soc_write(codec, DA7210_OUTMIX_L, DA7210_OUT_L_EN);
+	snd_soc_write(codec, DA7210_OUTMIX_R, DA7210_OUT_R_EN);
 
 	/* Enable Left and Right HeadPhone PGA */
-	da7210_write(codec, DA7210_HP_CFG,
+	snd_soc_write(codec, DA7210_HP_CFG,
 		     DA7210_HP_2CAP_MODE | DA7210_HP_SENSE_EN |
 		     DA7210_HP_L_EN | DA7210_HP_MODE | DA7210_HP_R_EN);
 
 	/* Diable PLL and bypass it */
-	da7210_write(codec, DA7210_PLL, DA7210_PLL_FS_48000);
+	snd_soc_write(codec, DA7210_PLL, DA7210_PLL_FS_48000);
 
 	/*
 	 * If 48kHz sound came, it use bypass mode,
@@ -521,22 +490,22 @@ static int da7210_probe(struct snd_soc_codec *codec)
 	 * DA7210_PLL_DIV3 :: DA7210_PLL_BYP bit.
 	 *   see da7210_hw_params
 	 */
-	da7210_write(codec, DA7210_PLL_DIV1, 0xE5); /* MCLK = 12.288MHz */
-	da7210_write(codec, DA7210_PLL_DIV2, 0x99);
-	da7210_write(codec, DA7210_PLL_DIV3, 0x0A |
+	snd_soc_write(codec, DA7210_PLL_DIV1, 0xE5); /* MCLK = 12.288MHz */
+	snd_soc_write(codec, DA7210_PLL_DIV2, 0x99);
+	snd_soc_write(codec, DA7210_PLL_DIV3, 0x0A |
 		     DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP);
 	snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_EN, DA7210_PLL_EN);
 
 	/* As suggested by Dialog */
-	da7210_write(codec, DA7210_A_HID_UNLOCK,	0x8B); /* unlock */
-	da7210_write(codec, DA7210_A_TEST_UNLOCK,	0xB4);
-	da7210_write(codec, DA7210_A_PLL1,		0x01);
-	da7210_write(codec, DA7210_A_CP_MODE,		0x7C);
-	da7210_write(codec, DA7210_A_HID_UNLOCK,	0x00); /* re-lock */
-	da7210_write(codec, DA7210_A_TEST_UNLOCK,	0x00);
+	snd_soc_write(codec, DA7210_A_HID_UNLOCK,	0x8B); /* unlock */
+	snd_soc_write(codec, DA7210_A_TEST_UNLOCK,	0xB4);
+	snd_soc_write(codec, DA7210_A_PLL1,		0x01);
+	snd_soc_write(codec, DA7210_A_CP_MODE,		0x7C);
+	snd_soc_write(codec, DA7210_A_HID_UNLOCK,	0x00); /* re-lock */
+	snd_soc_write(codec, DA7210_A_TEST_UNLOCK,	0x00);
 
 	/* Activate all enabled subsystem */
-	da7210_write(codec, DA7210_STARTUP1, DA7210_SC_MST_EN);
+	snd_soc_write(codec, DA7210_STARTUP1, DA7210_SC_MST_EN);
 
 	snd_soc_add_controls(codec, da7210_snd_controls,
 			     ARRAY_SIZE(da7210_snd_controls));
@@ -548,11 +517,10 @@ static int da7210_probe(struct snd_soc_codec *codec)
 
 static struct snd_soc_codec_driver soc_codec_dev_da7210 = {
 	.probe			= da7210_probe,
-	.read			= da7210_read,
-	.write			= da7210_write,
 	.reg_cache_size		= ARRAY_SIZE(da7210_reg),
 	.reg_word_size		= sizeof(u8),
 	.reg_cache_default	= da7210_reg,
+	.volatile_register	= da7210_volatile_register,
 };
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
@@ -567,7 +535,6 @@ static int __devinit da7210_i2c_probe(struct i2c_client *i2c,
 		return -ENOMEM;
 
 	i2c_set_clientdata(i2c, da7210);
-	da7210->control_data = i2c;
 	da7210->control_type = SND_SOC_I2C;
 
 	ret =  snd_soc_register_codec(&i2c->dev,