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Commit 891271c2 authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Convert wm8804 to direct regmap API usage 



The register map for this device is actually fairly sparse so the rbtree
should be beneficial.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent f649f1a8

sound/soc/codecs/wm8804.c

+62 −53
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include <linux/i2c.h>

#include <linux/of_device.h>

#include <linux/spi/spi.h>

#include <linux/regmap.h>

#include <linux/regulator/consumer.h>

#include <linux/slab.h>

#include <sound/core.h>
@@ -35,45 +36,33 @@ static const char *wm8804_supply_names[WM8804_NUM_SUPPLIES] = { 
	"DVDD"

};



static const u8 wm8804_reg_defs[] = {

	0x05,     /* R0  - RST/DEVID1 */

	0x88,     /* R1  - DEVID2 */

	0x04,     /* R2  - DEVREV */

	0x21,     /* R3  - PLL1 */

	0xFD,     /* R4  - PLL2 */

	0x36,     /* R5  - PLL3 */

	0x07,     /* R6  - PLL4 */

	0x16,     /* R7  - PLL5 */

	0x18,     /* R8  - PLL6 */

	0xFF,     /* R9  - SPDMODE */

	0x00,     /* R10 - INTMASK */

	0x00,     /* R11 - INTSTAT */

	0x00,     /* R12 - SPDSTAT */

	0x00,     /* R13 - RXCHAN1 */

	0x00,     /* R14 - RXCHAN2 */

	0x00,     /* R15 - RXCHAN3 */

	0x00,     /* R16 - RXCHAN4 */

	0x00,     /* R17 - RXCHAN5 */

	0x00,     /* R18 - SPDTX1 */

	0x00,     /* R19 - SPDTX2 */

	0x00,     /* R20 - SPDTX3 */

	0x71,     /* R21 - SPDTX4 */

	0x0B,     /* R22 - SPDTX5 */

	0x70,     /* R23 - GPO0 */

	0x57,     /* R24 - GPO1 */

	0x00,     /* R25 */

	0x42,     /* R26 - GPO2 */

	0x06,     /* R27 - AIFTX */

	0x06,     /* R28 - AIFRX */

	0x80,     /* R29 - SPDRX1 */

	0x07,     /* R30 - PWRDN */

static const struct reg_default wm8804_reg_defaults[] = {

	{ 3,  0x21 },     /* R3  - PLL1 */

	{ 4,  0xFD },     /* R4  - PLL2 */

	{ 5,  0x36 },     /* R5  - PLL3 */

	{ 6,  0x07 },     /* R6  - PLL4 */

	{ 7,  0x16 },     /* R7  - PLL5 */

	{ 8,  0x18 },     /* R8  - PLL6 */

	{ 9,  0xFF },     /* R9  - SPDMODE */

	{ 10, 0x00 },     /* R10 - INTMASK */

	{ 18, 0x00 },     /* R18 - SPDTX1 */

	{ 19, 0x00 },     /* R19 - SPDTX2 */

	{ 20, 0x00 },     /* R20 - SPDTX3 */

	{ 21, 0x71 },     /* R21 - SPDTX4 */

	{ 22, 0x0B },     /* R22 - SPDTX5 */

	{ 23, 0x70 },     /* R23 - GPO0 */

	{ 24, 0x57 },     /* R24 - GPO1 */

	{ 26, 0x42 },     /* R26 - GPO2 */

	{ 27, 0x06 },     /* R27 - AIFTX */

	{ 28, 0x06 },     /* R28 - AIFRX */

	{ 29, 0x80 },     /* R29 - SPDRX1 */

	{ 30, 0x07 },     /* R30 - PWRDN */

};



struct wm8804_priv {

	enum snd_soc_control_type control_type;

	struct regmap *regmap;

	struct regulator_bulk_data supplies[WM8804_NUM_SUPPLIES];

	struct notifier_block disable_nb[WM8804_NUM_SUPPLIES];

	struct snd_soc_codec *codec;

};



static int txsrc_get(struct snd_kcontrol *kcontrol,
@@ -94,7 +83,7 @@ static int wm8804_regulator_event_##n(struct notifier_block *nb, \ 
	struct wm8804_priv *wm8804 = container_of(nb, struct wm8804_priv, \

						  disable_nb[n]); \

	if (event & REGULATOR_EVENT_DISABLE) { \

		wm8804->codec->cache_sync = 1; \

		regcache_mark_dirty(wm8804->regmap);	\

	} \

	return 0; \

}
@@ -176,7 +165,7 @@ static int txsrc_put(struct snd_kcontrol *kcontrol, 
	return 0;

}



static int wm8804_volatile(struct snd_soc_codec *codec, unsigned int reg)

static bool wm8804_volatile(struct device *dev, unsigned int reg)

{

	switch (reg) {

	case WM8804_RST_DEVID1:
@@ -189,12 +178,10 @@ static int wm8804_volatile(struct snd_soc_codec *codec, unsigned int reg) 
	case WM8804_RXCHAN3:

	case WM8804_RXCHAN4:

	case WM8804_RXCHAN5:

		return 1;

		return true;

	default:

		break;

		return false;

	}



	return 0;

}



static int wm8804_reset(struct snd_soc_codec *codec)
@@ -506,7 +493,7 @@ static int wm8804_set_bias_level(struct snd_soc_codec *codec, 
					ret);

				return ret;

			}

			snd_soc_cache_sync(codec);

			regcache_sync(wm8804->regmap);

		}

		/* power down the OSC and the PLL */

		snd_soc_update_bits(codec, WM8804_PWRDN, 0x9, 0x9);
@@ -561,11 +548,11 @@ static int wm8804_probe(struct snd_soc_codec *codec) 
	int i, id1, id2, ret;



	wm8804 = snd_soc_codec_get_drvdata(codec);

	wm8804->codec = codec;



	codec->dapm.idle_bias_off = 1;

	codec->control_data = wm8804->regmap;



	ret = snd_soc_codec_set_cache_io(codec, 8, 8, wm8804->control_type);

	ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP);

	if (ret < 0) {

		dev_err(codec->dev, "Failed to set cache i/o: %d\n", ret);

		return ret;
@@ -618,8 +605,7 @@ static int wm8804_probe(struct snd_soc_codec *codec) 


	id2 = (id2 << 8) | id1;



	if (id2 != ((wm8804_reg_defs[WM8804_DEVID2] << 8)

			| wm8804_reg_defs[WM8804_RST_DEVID1])) {

	if (id2 != 0x8805) {

		dev_err(codec->dev, "Invalid device ID: %#x\n", id2);

		ret = -EINVAL;

		goto err_reg_enable;
@@ -692,10 +678,6 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8804 = { 
	.suspend = wm8804_suspend,

	.resume = wm8804_resume,

	.set_bias_level = wm8804_set_bias_level,

	.reg_cache_size = ARRAY_SIZE(wm8804_reg_defs),

	.reg_word_size = sizeof(u8),

	.reg_cache_default = wm8804_reg_defs,

	.volatile_register = wm8804_volatile,



	.controls = wm8804_snd_controls,

	.num_controls = ARRAY_SIZE(wm8804_snd_controls),
@@ -707,6 +689,18 @@ static const struct of_device_id wm8804_of_match[] = { 
};

MODULE_DEVICE_TABLE(of, wm8804_of_match);



static struct regmap_config wm8804_regmap_config = {

	.reg_bits = 8,

	.val_bits = 8,



	.max_register = WM8804_MAX_REGISTER,

	.volatile_reg = wm8804_volatile,



	.cache_type = REGCACHE_RBTREE,

	.reg_defaults = wm8804_reg_defaults,

	.num_reg_defaults = ARRAY_SIZE(wm8804_reg_defaults),

};



#if defined(CONFIG_SPI_MASTER)

static int __devinit wm8804_spi_probe(struct spi_device *spi)

{
@@ -717,7 +711,12 @@ static int __devinit wm8804_spi_probe(struct spi_device *spi) 
	if (!wm8804)

		return -ENOMEM;



	wm8804->control_type = SND_SOC_SPI;

	wm8804->regmap = regmap_init_spi(spi, &wm8804_regmap_config);

	if (IS_ERR(wm8804->regmap)) {

		ret = PTR_ERR(wm8804->regmap);

		return ret;

	}



	spi_set_drvdata(spi, wm8804);



	ret = snd_soc_register_codec(&spi->dev,
@@ -728,7 +727,9 @@ static int __devinit wm8804_spi_probe(struct spi_device *spi) 


static int __devexit wm8804_spi_remove(struct spi_device *spi)

{

	struct wm8804_priv *wm8804 = spi_get_drvdata(spi);

	snd_soc_unregister_codec(&spi->dev);

	regmap_exit(wm8804->regmap);

	return 0;

}
@@ -754,18 +755,26 @@ static __devinit int wm8804_i2c_probe(struct i2c_client *i2c, 
	if (!wm8804)

		return -ENOMEM;



	wm8804->control_type = SND_SOC_I2C;

	i2c_set_clientdata(i2c, wm8804);



	ret = snd_soc_register_codec(&i2c->dev,

				     &soc_codec_dev_wm8804, &wm8804_dai, 1);

	if (ret != 0)

		goto err;



	return 0;



err:

	regmap_exit(wm8804->regmap);

	return ret;

}



static __devexit int wm8804_i2c_remove(struct i2c_client *client)

static __devexit int wm8804_i2c_remove(struct i2c_client *i2c)

{

	snd_soc_unregister_codec(&client->dev);

	struct wm8804_priv *wm8804 = i2c_get_clientdata(i2c);



	snd_soc_unregister_codec(&i2c->dev);

	regmap_exit(wm8804->regmap);



	return 0;

}