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Diffstat (limited to 'sound/soc/codecs/wm8955.c')
-rw-r--r--sound/soc/codecs/wm8955.c198
1 files changed, 123 insertions, 75 deletions
diff --git a/sound/soc/codecs/wm8955.c b/sound/soc/codecs/wm8955.c
index 559c96b656a..11fb2dd40c5 100644
--- a/sound/soc/codecs/wm8955.c
+++ b/sound/soc/codecs/wm8955.c
@@ -16,6 +16,7 @@
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
+#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <sound/core.h>
@@ -38,7 +39,7 @@ static const char *wm8955_supply_names[WM8955_NUM_SUPPLIES] = {
/* codec private data */
struct wm8955_priv {
- enum snd_soc_control_type control_type;
+ struct regmap *regmap;
unsigned int mclk_rate;
@@ -48,69 +49,85 @@ struct wm8955_priv {
struct regulator_bulk_data supplies[WM8955_NUM_SUPPLIES];
};
-static const u16 wm8955_reg[WM8955_MAX_REGISTER + 1] = {
- 0x0000, /* R0 */
- 0x0000, /* R1 */
- 0x0079, /* R2 - LOUT1 volume */
- 0x0079, /* R3 - ROUT1 volume */
- 0x0000, /* R4 */
- 0x0008, /* R5 - DAC Control */
- 0x0000, /* R6 */
- 0x000A, /* R7 - Audio Interface */
- 0x0000, /* R8 - Sample Rate */
- 0x0000, /* R9 */
- 0x00FF, /* R10 - Left DAC volume */
- 0x00FF, /* R11 - Right DAC volume */
- 0x000F, /* R12 - Bass control */
- 0x000F, /* R13 - Treble control */
- 0x0000, /* R14 */
- 0x0000, /* R15 - Reset */
- 0x0000, /* R16 */
- 0x0000, /* R17 */
- 0x0000, /* R18 */
- 0x0000, /* R19 */
- 0x0000, /* R20 */
- 0x0000, /* R21 */
- 0x0000, /* R22 */
- 0x00C1, /* R23 - Additional control (1) */
- 0x0000, /* R24 - Additional control (2) */
- 0x0000, /* R25 - Power Management (1) */
- 0x0000, /* R26 - Power Management (2) */
- 0x0000, /* R27 - Additional Control (3) */
- 0x0000, /* R28 */
- 0x0000, /* R29 */
- 0x0000, /* R30 */
- 0x0000, /* R31 */
- 0x0000, /* R32 */
- 0x0000, /* R33 */
- 0x0050, /* R34 - Left out Mix (1) */
- 0x0050, /* R35 - Left out Mix (2) */
- 0x0050, /* R36 - Right out Mix (1) */
- 0x0050, /* R37 - Right Out Mix (2) */
- 0x0050, /* R38 - Mono out Mix (1) */
- 0x0050, /* R39 - Mono out Mix (2) */
- 0x0079, /* R40 - LOUT2 volume */
- 0x0079, /* R41 - ROUT2 volume */
- 0x0079, /* R42 - MONOOUT volume */
- 0x0000, /* R43 - Clocking / PLL */
- 0x0103, /* R44 - PLL Control 1 */
- 0x0024, /* R45 - PLL Control 2 */
- 0x01BA, /* R46 - PLL Control 3 */
- 0x0000, /* R47 */
- 0x0000, /* R48 */
- 0x0000, /* R49 */
- 0x0000, /* R50 */
- 0x0000, /* R51 */
- 0x0000, /* R52 */
- 0x0000, /* R53 */
- 0x0000, /* R54 */
- 0x0000, /* R55 */
- 0x0000, /* R56 */
- 0x0000, /* R57 */
- 0x0000, /* R58 */
- 0x0000, /* R59 - PLL Control 4 */
+static const struct reg_default wm8955_reg_defaults[] = {
+ { 2, 0x0079 }, /* R2 - LOUT1 volume */
+ { 3, 0x0079 }, /* R3 - ROUT1 volume */
+ { 5, 0x0008 }, /* R5 - DAC Control */
+ { 7, 0x000A }, /* R7 - Audio Interface */
+ { 8, 0x0000 }, /* R8 - Sample Rate */
+ { 10, 0x00FF }, /* R10 - Left DAC volume */
+ { 11, 0x00FF }, /* R11 - Right DAC volume */
+ { 12, 0x000F }, /* R12 - Bass control */
+ { 13, 0x000F }, /* R13 - Treble control */
+ { 23, 0x00C1 }, /* R23 - Additional control (1) */
+ { 24, 0x0000 }, /* R24 - Additional control (2) */
+ { 25, 0x0000 }, /* R25 - Power Management (1) */
+ { 26, 0x0000 }, /* R26 - Power Management (2) */
+ { 27, 0x0000 }, /* R27 - Additional Control (3) */
+ { 34, 0x0050 }, /* R34 - Left out Mix (1) */
+ { 35, 0x0050 }, /* R35 - Left out Mix (2) */
+ { 36, 0x0050 }, /* R36 - Right out Mix (1) */
+ { 37, 0x0050 }, /* R37 - Right Out Mix (2) */
+ { 38, 0x0050 }, /* R38 - Mono out Mix (1) */
+ { 39, 0x0050 }, /* R39 - Mono out Mix (2) */
+ { 40, 0x0079 }, /* R40 - LOUT2 volume */
+ { 41, 0x0079 }, /* R41 - ROUT2 volume */
+ { 42, 0x0079 }, /* R42 - MONOOUT volume */
+ { 43, 0x0000 }, /* R43 - Clocking / PLL */
+ { 44, 0x0103 }, /* R44 - PLL Control 1 */
+ { 45, 0x0024 }, /* R45 - PLL Control 2 */
+ { 46, 0x01BA }, /* R46 - PLL Control 3 */
+ { 59, 0x0000 }, /* R59 - PLL Control 4 */
};
+static bool wm8955_writeable(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM8955_LOUT1_VOLUME:
+ case WM8955_ROUT1_VOLUME:
+ case WM8955_DAC_CONTROL:
+ case WM8955_AUDIO_INTERFACE:
+ case WM8955_SAMPLE_RATE:
+ case WM8955_LEFT_DAC_VOLUME:
+ case WM8955_RIGHT_DAC_VOLUME:
+ case WM8955_BASS_CONTROL:
+ case WM8955_TREBLE_CONTROL:
+ case WM8955_RESET:
+ case WM8955_ADDITIONAL_CONTROL_1:
+ case WM8955_ADDITIONAL_CONTROL_2:
+ case WM8955_POWER_MANAGEMENT_1:
+ case WM8955_POWER_MANAGEMENT_2:
+ case WM8955_ADDITIONAL_CONTROL_3:
+ case WM8955_LEFT_OUT_MIX_1:
+ case WM8955_LEFT_OUT_MIX_2:
+ case WM8955_RIGHT_OUT_MIX_1:
+ case WM8955_RIGHT_OUT_MIX_2:
+ case WM8955_MONO_OUT_MIX_1:
+ case WM8955_MONO_OUT_MIX_2:
+ case WM8955_LOUT2_VOLUME:
+ case WM8955_ROUT2_VOLUME:
+ case WM8955_MONOOUT_VOLUME:
+ case WM8955_CLOCKING_PLL:
+ case WM8955_PLL_CONTROL_1:
+ case WM8955_PLL_CONTROL_2:
+ case WM8955_PLL_CONTROL_3:
+ case WM8955_PLL_CONTROL_4:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool wm8955_volatile(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM8955_RESET:
+ return true;
+ default:
+ return false;
+ }
+}
+
static int wm8955_reset(struct snd_soc_codec *codec)
{
return snd_soc_write(codec, WM8955_RESET, 0);
@@ -765,8 +782,7 @@ static int wm8955_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct wm8955_priv *wm8955 = snd_soc_codec_get_drvdata(codec);
- u16 *reg_cache = codec->reg_cache;
- int ret, i;
+ int ret;
switch (level) {
case SND_SOC_BIAS_ON:
@@ -795,7 +811,7 @@ static int wm8955_set_bias_level(struct snd_soc_codec *codec,
return ret;
}
- snd_soc_cache_sync(codec);
+ regcache_sync(wm8955->regmap);
/* Enable VREF and VMID */
snd_soc_update_bits(codec, WM8955_POWER_MANAGEMENT_1,
@@ -869,8 +885,12 @@ static struct snd_soc_dai_driver wm8955_dai = {
#ifdef CONFIG_PM
static int wm8955_suspend(struct snd_soc_codec *codec)
{
+ struct wm8955_priv *wm8955 = snd_soc_codec_get_drvdata(codec);
+
wm8955_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ regcache_mark_dirty(wm8955->regmap);
+
return 0;
}
@@ -889,10 +909,11 @@ static int wm8955_probe(struct snd_soc_codec *codec)
{
struct wm8955_priv *wm8955 = snd_soc_codec_get_drvdata(codec);
struct wm8955_pdata *pdata = dev_get_platdata(codec->dev);
- u16 *reg_cache = codec->reg_cache;
int ret, i;
- ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8955->control_type);
+ codec->control_data = wm8955->regmap;
+
+ ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP);
if (ret != 0) {
dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
return ret;
@@ -947,12 +968,12 @@ static int wm8955_probe(struct snd_soc_codec *codec)
/* Set platform data values */
if (pdata) {
if (pdata->out2_speaker)
- reg_cache[WM8955_ADDITIONAL_CONTROL_2]
- |= WM8955_ROUT2INV;
+ snd_soc_update_bits(codec, WM8955_ADDITIONAL_CONTROL_2,
+ WM8955_ROUT2INV, WM8955_ROUT2INV);
if (pdata->monoin_diff)
- reg_cache[WM8955_MONO_OUT_MIX_1]
- |= WM8955_DMEN;
+ snd_soc_update_bits(codec, WM8955_MONO_OUT_MIX_1,
+ WM8955_DMEN, WM8955_DMEN);
}
wm8955_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
@@ -985,9 +1006,19 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8955 = {
.suspend = wm8955_suspend,
.resume = wm8955_resume,
.set_bias_level = wm8955_set_bias_level,
- .reg_cache_size = ARRAY_SIZE(wm8955_reg),
- .reg_word_size = sizeof(u16),
- .reg_cache_default = wm8955_reg,
+};
+
+static const struct regmap_config wm8955_regmap = {
+ .reg_bits = 7,
+ .val_bits = 9,
+
+ .max_register = WM8955_MAX_REGISTER,
+ .volatile_reg = wm8955_volatile,
+ .writeable_reg = wm8955_writeable,
+
+ .cache_type = REGCACHE_RBTREE,
+ .reg_defaults = wm8955_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8955_reg_defaults),
};
static __devinit int wm8955_i2c_probe(struct i2c_client *i2c,
@@ -1001,18 +1032,35 @@ static __devinit int wm8955_i2c_probe(struct i2c_client *i2c,
if (wm8955 == NULL)
return -ENOMEM;
+ wm8955->regmap = regmap_init_i2c(i2c, &wm8955_regmap);
+ if (IS_ERR(wm8955->regmap)) {
+ ret = PTR_ERR(wm8955->regmap);
+ dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+
i2c_set_clientdata(i2c, wm8955);
- wm8955->control_type = SND_SOC_I2C;
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_wm8955, &wm8955_dai, 1);
+ if (ret != 0)
+ goto err;
+
+ return ret;
+err:
+ regmap_exit(wm8955->regmap);
return ret;
}
static __devexit int wm8955_i2c_remove(struct i2c_client *client)
{
+ struct wm8955_priv *wm8955 = i2c_get_clientdata(client);
+
snd_soc_unregister_codec(&client->dev);
+ regmap_exit(wm8955->regmap);
+
return 0;
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-30 19:41:06 +0000