1 files changed, 97 insertions, 114 deletions

diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c
index 86c4b24db817..6bded8c78150 100644
--- a/sound/soc/codecs/wm8580.c
+++ b/sound/soc/codecs/wm8580.c
@@ -24,6 +24,8 @@
 #include <linux/pm.h>
 #include <linux/i2c.h>
 #include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -187,82 +189,22 @@ struct pll_state {
 	unsigned int out;
 };
 
+#define WM8580_NUM_SUPPLIES 3
+static const char *wm8580_supply_names[WM8580_NUM_SUPPLIES] = {
+	"AVDD",
+	"DVDD",
+	"PVDD",
+};
+
 /* codec private data */
 struct wm8580_priv {
 	struct snd_soc_codec codec;
+	struct regulator_bulk_data supplies[WM8580_NUM_SUPPLIES];
 	u16 reg_cache[WM8580_MAX_REGISTER + 1];
 	struct pll_state a;
 	struct pll_state b;
 };
 
-
-/*
- * read wm8580 register cache
- */
-static inline unsigned int wm8580_read_reg_cache(struct snd_soc_codec *codec,
-	unsigned int reg)
-{
-	u16 *cache = codec->reg_cache;
-	BUG_ON(reg >= ARRAY_SIZE(wm8580_reg));
-	return cache[reg];
-}
-
-/*
- * write wm8580 register cache
- */
-static inline void wm8580_write_reg_cache(struct snd_soc_codec *codec,
-	unsigned int reg, unsigned int value)
-{
-	u16 *cache = codec->reg_cache;
-
-	cache[reg] = value;
-}
-
-/*
- * write to the WM8580 register space
- */
-static int wm8580_write(struct snd_soc_codec *codec, unsigned int reg,
-	unsigned int value)
-{
-	u8 data[2];
-
-	BUG_ON(reg >= ARRAY_SIZE(wm8580_reg));
-
-	/* Registers are 9 bits wide */
-	value &= 0x1ff;
-
-	switch (reg) {
-	case WM8580_RESET:
-		/* Uncached */
-		break;
-	default:
-		if (value == wm8580_read_reg_cache(codec, reg))
-			return 0;
-	}
-
-	/* data is
-	 *   D15..D9 WM8580 register offset
-	 *   D8...D0 register data
-	 */
-	data[0] = (reg << 1) | ((value >> 8) & 0x0001);
-	data[1] = value & 0x00ff;
-
-	wm8580_write_reg_cache(codec, reg, value);
-	if (codec->hw_write(codec->control_data, data, 2) == 2)
-		return 0;
-	else
-		return -EIO;
-}
-
-static inline unsigned int wm8580_read(struct snd_soc_codec *codec,
-				       unsigned int reg)
-{
-	switch (reg) {
-	default:
-		return wm8580_read_reg_cache(codec, reg);
-	}
-}
-
 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
 
 static int wm8580_out_vu(struct snd_kcontrol *kcontrol,
@@ -271,25 +213,22 @@ static int wm8580_out_vu(struct snd_kcontrol *kcontrol,
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
 	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+	u16 *reg_cache = codec->reg_cache;
 	unsigned int reg = mc->reg;
 	unsigned int reg2 = mc->rreg;
 	int ret;
-	u16 val;
 
 	/* Clear the register cache so we write without VU set */
-	wm8580_write_reg_cache(codec, reg, 0);
-	wm8580_write_reg_cache(codec, reg2, 0);
+	reg_cache[reg] = 0;
+	reg_cache[reg2] = 0;
 
 	ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
 	if (ret < 0)
 		return ret;
 
 	/* Now write again with the volume update bit set */
-	val = wm8580_read_reg_cache(codec, reg);
-	wm8580_write(codec, reg, val | 0x0100);
-
-	val = wm8580_read_reg_cache(codec, reg2);
-	wm8580_write(codec, reg2, val | 0x0100);
+	snd_soc_update_bits(codec, reg, 0x100, 0x100);
+	snd_soc_update_bits(codec, reg2, 0x100, 0x100);
 
 	return 0;
 }
@@ -512,27 +451,27 @@ static int wm8580_set_dai_pll(struct snd_soc_dai *codec_dai,
 	/* Always disable the PLL - it is not safe to leave it running
 	 * while reprogramming it.
 	 */
-	reg = wm8580_read(codec, WM8580_PWRDN2);
-	wm8580_write(codec, WM8580_PWRDN2, reg | pwr_mask);
+	reg = snd_soc_read(codec, WM8580_PWRDN2);
+	snd_soc_write(codec, WM8580_PWRDN2, reg | pwr_mask);
 
 	if (!freq_in || !freq_out)
 		return 0;
 
-	wm8580_write(codec, WM8580_PLLA1 + offset, pll_div.k & 0x1ff);
-	wm8580_write(codec, WM8580_PLLA2 + offset, (pll_div.k >> 9) & 0xff);
-	wm8580_write(codec, WM8580_PLLA3 + offset,
+	snd_soc_write(codec, WM8580_PLLA1 + offset, pll_div.k & 0x1ff);
+	snd_soc_write(codec, WM8580_PLLA2 + offset, (pll_div.k >> 9) & 0x1ff);
+	snd_soc_write(codec, WM8580_PLLA3 + offset,
 		     (pll_div.k >> 18 & 0xf) | (pll_div.n << 4));
 
-	reg = wm8580_read(codec, WM8580_PLLA4 + offset);
-	reg &= ~0x3f;
+	reg = snd_soc_read(codec, WM8580_PLLA4 + offset);
+	reg &= ~0x1b;
 	reg |= pll_div.prescale | pll_div.postscale << 1 |
 		pll_div.freqmode << 3;
 
-	wm8580_write(codec, WM8580_PLLA4 + offset, reg);
+	snd_soc_write(codec, WM8580_PLLA4 + offset, reg);
 
 	/* All done, turn it on */
-	reg = wm8580_read(codec, WM8580_PWRDN2);
-	wm8580_write(codec, WM8580_PWRDN2, reg & ~pwr_mask);
+	reg = snd_soc_read(codec, WM8580_PWRDN2);
+	snd_soc_write(codec, WM8580_PWRDN2, reg & ~pwr_mask);
 
 	return 0;
 }
@@ -547,7 +486,7 @@ static int wm8580_paif_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 paifb = wm8580_read(codec, WM8580_PAIF3 + dai->id);
+	u16 paifb = snd_soc_read(codec, WM8580_PAIF3 + dai->id);
 
 	paifb &= ~WM8580_AIF_LENGTH_MASK;
 	/* bit size */
@@ -567,7 +506,7 @@ static int wm8580_paif_hw_params(struct snd_pcm_substream *substream,
 		return -EINVAL;
 	}
 
-	wm8580_write(codec, WM8580_PAIF3 + dai->id, paifb);
+	snd_soc_write(codec, WM8580_PAIF3 + dai->id, paifb);
 	return 0;
 }
 
@@ -579,8 +518,8 @@ static int wm8580_set_paif_dai_fmt(struct snd_soc_dai *codec_dai,
 	unsigned int aifb;
 	int can_invert_lrclk;
 
-	aifa = wm8580_read(codec, WM8580_PAIF1 + codec_dai->id);
-	aifb = wm8580_read(codec, WM8580_PAIF3 + codec_dai->id);
+	aifa = snd_soc_read(codec, WM8580_PAIF1 + codec_dai->id);
+	aifb = snd_soc_read(codec, WM8580_PAIF3 + codec_dai->id);
 
 	aifb &= ~(WM8580_AIF_FMT_MASK | WM8580_AIF_LRP | WM8580_AIF_BCP);
 
@@ -646,8 +585,8 @@ static int wm8580_set_paif_dai_fmt(struct snd_soc_dai *codec_dai,
 		return -EINVAL;
 	}
 
-	wm8580_write(codec, WM8580_PAIF1 + codec_dai->id, aifa);
-	wm8580_write(codec, WM8580_PAIF3 + codec_dai->id, aifb);
+	snd_soc_write(codec, WM8580_PAIF1 + codec_dai->id, aifa);
+	snd_soc_write(codec, WM8580_PAIF3 + codec_dai->id, aifb);
 
 	return 0;
 }
@@ -660,7 +599,7 @@ static int wm8580_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
 
 	switch (div_id) {
 	case WM8580_MCLK:
-		reg = wm8580_read(codec, WM8580_PLLB4);
+		reg = snd_soc_read(codec, WM8580_PLLB4);
 		reg &= ~WM8580_PLLB4_MCLKOUTSRC_MASK;
 
 		switch (div) {
@@ -682,11 +621,11 @@ static int wm8580_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
 		default:
 			return -EINVAL;
 		}
-		wm8580_write(codec, WM8580_PLLB4, reg);
+		snd_soc_write(codec, WM8580_PLLB4, reg);
 		break;
 
 	case WM8580_DAC_CLKSEL:
-		reg = wm8580_read(codec, WM8580_CLKSEL);
+		reg = snd_soc_read(codec, WM8580_CLKSEL);
 		reg &= ~WM8580_CLKSEL_DAC_CLKSEL_MASK;
 
 		switch (div) {
@@ -704,11 +643,11 @@ static int wm8580_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
 		default:
 			return -EINVAL;
 		}
-		wm8580_write(codec, WM8580_CLKSEL, reg);
+		snd_soc_write(codec, WM8580_CLKSEL, reg);
 		break;
 
 	case WM8580_CLKOUTSRC:
-		reg = wm8580_read(codec, WM8580_PLLB4);
+		reg = snd_soc_read(codec, WM8580_PLLB4);
 		reg &= ~WM8580_PLLB4_CLKOUTSRC_MASK;
 
 		switch (div) {
@@ -730,7 +669,7 @@ static int wm8580_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
 		default:
 			return -EINVAL;
 		}
-		wm8580_write(codec, WM8580_PLLB4, reg);
+		snd_soc_write(codec, WM8580_PLLB4, reg);
 		break;
 
 	default:
@@ -745,14 +684,14 @@ static int wm8580_digital_mute(struct snd_soc_dai *codec_dai, int mute)
 	struct snd_soc_codec *codec = codec_dai->codec;
 	unsigned int reg;
 
-	reg = wm8580_read(codec, WM8580_DAC_CONTROL5);
+	reg = snd_soc_read(codec, WM8580_DAC_CONTROL5);
 
 	if (mute)
 		reg |= WM8580_DAC_CONTROL5_MUTEALL;
 	else
 		reg &= ~WM8580_DAC_CONTROL5_MUTEALL;
 
-	wm8580_write(codec, WM8580_DAC_CONTROL5, reg);
+	snd_soc_write(codec, WM8580_DAC_CONTROL5, reg);
 
 	return 0;
 }
@@ -769,20 +708,20 @@ static int wm8580_set_bias_level(struct snd_soc_codec *codec,
 	case SND_SOC_BIAS_STANDBY:
 		if (codec->bias_level == SND_SOC_BIAS_OFF) {
 			/* Power up and get individual control of the DACs */
-			reg = wm8580_read(codec, WM8580_PWRDN1);
+			reg = snd_soc_read(codec, WM8580_PWRDN1);
 			reg &= ~(WM8580_PWRDN1_PWDN | WM8580_PWRDN1_ALLDACPD);
-			wm8580_write(codec, WM8580_PWRDN1, reg);
+			snd_soc_write(codec, WM8580_PWRDN1, reg);
 
 			/* Make VMID high impedence */
-			reg = wm8580_read(codec,  WM8580_ADC_CONTROL1);
+			reg = snd_soc_read(codec,  WM8580_ADC_CONTROL1);
 			reg &= ~0x100;
-			wm8580_write(codec, WM8580_ADC_CONTROL1, reg);
+			snd_soc_write(codec, WM8580_ADC_CONTROL1, reg);
 		}
 		break;
 
 	case SND_SOC_BIAS_OFF:
-		reg = wm8580_read(codec, WM8580_PWRDN1);
-		wm8580_write(codec, WM8580_PWRDN1, reg | WM8580_PWRDN1_PWDN);
+		reg = snd_soc_read(codec, WM8580_PWRDN1);
+		snd_soc_write(codec, WM8580_PWRDN1, reg | WM8580_PWRDN1_PWDN);
 		break;
 	}
 	codec->bias_level = level;
@@ -893,7 +832,8 @@ struct snd_soc_codec_device soc_codec_dev_wm8580 = {
 };
 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8580);
 
-static int wm8580_register(struct wm8580_priv *wm8580)
+static int wm8580_register(struct wm8580_priv *wm8580,
+			   enum snd_soc_control_type control)
 {
 	int ret, i;
 	struct snd_soc_codec *codec = &wm8580->codec;
@@ -911,8 +851,6 @@ static int wm8580_register(struct wm8580_priv *wm8580)
 	codec->private_data = wm8580;
 	codec->name = "WM8580";
 	codec->owner = THIS_MODULE;
-	codec->read = wm8580_read_reg_cache;
-	codec->write = wm8580_write;
 	codec->bias_level = SND_SOC_BIAS_OFF;
 	codec->set_bias_level = wm8580_set_bias_level;
 	codec->dai = wm8580_dai;
@@ -922,11 +860,34 @@ static int wm8580_register(struct wm8580_priv *wm8580)
 
 	memcpy(codec->reg_cache, wm8580_reg, sizeof(wm8580_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;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(wm8580->supplies); i++)
+		wm8580->supplies[i].supply = wm8580_supply_names[i];
+
+	ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8580->supplies),
+				 wm8580->supplies);
+	if (ret != 0) {
+		dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
+		goto err;
+	}
+
+	ret = regulator_bulk_enable(ARRAY_SIZE(wm8580->supplies),
+				    wm8580->supplies);
+	if (ret != 0) {
+		dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
+		goto err_regulator_get;
+	}
+
 	/* Get the codec into a known state */
-	ret = wm8580_write(codec, WM8580_RESET, 0);
+	ret = snd_soc_write(codec, WM8580_RESET, 0);
 	if (ret != 0) {
 		dev_err(codec->dev, "Failed to reset codec: %d\n", ret);
-		goto err;
+		goto err_regulator_enable;
 	}
 
 	for (i = 0; i < ARRAY_SIZE(wm8580_dai); i++)
@@ -939,7 +900,7 @@ static int wm8580_register(struct wm8580_priv *wm8580)
 	ret = snd_soc_register_codec(codec);
 	if (ret != 0) {
 		dev_err(codec->dev, "Failed to register codec: %d\n", ret);
-		goto err;
+		goto err_regulator_enable;
 	}
 
 	ret = snd_soc_register_dais(wm8580_dai, ARRAY_SIZE(wm8580_dai));
@@ -952,6 +913,10 @@ static int wm8580_register(struct wm8580_priv *wm8580)
 
 err_codec:
 	snd_soc_unregister_codec(codec);
+err_regulator_enable:
+	regulator_bulk_disable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
+err_regulator_get:
+	regulator_bulk_free(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
 err:
 	kfree(wm8580);
 	return ret;
@@ -962,6 +927,8 @@ static void wm8580_unregister(struct wm8580_priv *wm8580)
 	wm8580_set_bias_level(&wm8580->codec, SND_SOC_BIAS_OFF);
 	snd_soc_unregister_dais(wm8580_dai, ARRAY_SIZE(wm8580_dai));
 	snd_soc_unregister_codec(&wm8580->codec);
+	regulator_bulk_disable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
+	regulator_bulk_free(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
 	kfree(wm8580);
 	wm8580_codec = NULL;
 }
@@ -978,14 +945,13 @@ static int wm8580_i2c_probe(struct i2c_client *i2c,
 		return -ENOMEM;
 
 	codec = &wm8580->codec;
-	codec->hw_write = (hw_write_t)i2c_master_send;
 
 	i2c_set_clientdata(i2c, wm8580);
 	codec->control_data = i2c;
 
 	codec->dev = &i2c->dev;
 
-	return wm8580_register(wm8580);
+	return wm8580_register(wm8580, SND_SOC_I2C);
 }
 
 static int wm8580_i2c_remove(struct i2c_client *client)
@@ -995,6 +961,21 @@ static int wm8580_i2c_remove(struct i2c_client *client)
 	return 0;
 }
 
+#ifdef CONFIG_PM
+static int wm8580_i2c_suspend(struct i2c_client *client, pm_message_t msg)
+{
+	return snd_soc_suspend_device(&client->dev);
+}
+
+static int wm8580_i2c_resume(struct i2c_client *client)
+{
+	return snd_soc_resume_device(&client->dev);
+}
+#else
+#define wm8580_i2c_suspend NULL
+#define wm8580_i2c_resume NULL
+#endif
+
 static const struct i2c_device_id wm8580_i2c_id[] = {
 	{ "wm8580", 0 },
 	{ }
@@ -1008,6 +989,8 @@ static struct i2c_driver wm8580_i2c_driver = {
 	},
 	.probe =    wm8580_i2c_probe,
 	.remove =   wm8580_i2c_remove,
+	.suspend =  wm8580_i2c_suspend,
+	.resume =   wm8580_i2c_resume,
 	.id_table = wm8580_i2c_id,
 };
 #endif