summaryrefslogtreecommitdiffstats
path: root/sound/soc/codecs/wm8990.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/codecs/wm8990.c')
-rw-r--r--sound/soc/codecs/wm8990.c105
1 files changed, 47 insertions, 58 deletions
diff --git a/sound/soc/codecs/wm8990.c b/sound/soc/codecs/wm8990.c
index 100aeee5ba96..d29a9622964c 100644
--- a/sound/soc/codecs/wm8990.c
+++ b/sound/soc/codecs/wm8990.c
@@ -36,10 +36,17 @@ struct wm8990_priv {
unsigned int pcmclk;
};
-/*
- * wm8990 register cache. Note that register 0 is not included in the
- * cache.
- */
+static int wm8990_volatile_register(struct snd_soc_codec *codec,
+ unsigned int reg)
+{
+ switch (reg) {
+ case WM8990_RESET:
+ return 1;
+ default:
+ return 0;
+ }
+}
+
static const u16 wm8990_reg[] = {
0x8990, /* R0 - Reset */
0x0000, /* R1 - Power Management (1) */
@@ -394,7 +401,7 @@ static int inmixer_event(struct snd_soc_dapm_widget *w,
(1 << WM8990_AINRMUX_PWR_BIT))) {
reg |= WM8990_AINR_ENA;
} else {
- reg &= ~WM8990_AINL_ENA;
+ reg &= ~WM8990_AINR_ENA;
}
snd_soc_write(w->codec, WM8990_POWER_MANAGEMENT_2, reg);
@@ -974,7 +981,6 @@ static void pll_factors(struct _pll_div *pll_div, unsigned int target,
static int wm8990_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
int source, unsigned int freq_in, unsigned int freq_out)
{
- u16 reg;
struct snd_soc_codec *codec = codec_dai->codec;
struct _pll_div pll_div;
@@ -982,13 +988,12 @@ static int wm8990_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
pll_factors(&pll_div, freq_out * 4, freq_in);
/* Turn on PLL */
- reg = snd_soc_read(codec, WM8990_POWER_MANAGEMENT_2);
- reg |= WM8990_PLL_ENA;
- snd_soc_write(codec, WM8990_POWER_MANAGEMENT_2, reg);
+ snd_soc_update_bits(codec, WM8990_POWER_MANAGEMENT_2,
+ WM8990_PLL_ENA, WM8990_PLL_ENA);
/* sysclk comes from PLL */
- reg = snd_soc_read(codec, WM8990_CLOCKING_2);
- snd_soc_write(codec, WM8990_CLOCKING_2, reg | WM8990_SYSCLK_SRC);
+ snd_soc_update_bits(codec, WM8990_CLOCKING_2,
+ WM8990_SYSCLK_SRC, WM8990_SYSCLK_SRC);
/* set up N , fractional mode and pre-divisor if necessary */
snd_soc_write(codec, WM8990_PLL1, pll_div.n | WM8990_SDM |
@@ -996,10 +1001,9 @@ static int wm8990_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
snd_soc_write(codec, WM8990_PLL2, (u8)(pll_div.k>>8));
snd_soc_write(codec, WM8990_PLL3, (u8)(pll_div.k & 0xFF));
} else {
- /* Turn on PLL */
- reg = snd_soc_read(codec, WM8990_POWER_MANAGEMENT_2);
- reg &= ~WM8990_PLL_ENA;
- snd_soc_write(codec, WM8990_POWER_MANAGEMENT_2, reg);
+ /* Turn off PLL */
+ snd_soc_update_bits(codec, WM8990_POWER_MANAGEMENT_2,
+ WM8990_PLL_ENA, 0);
}
return 0;
}
@@ -1077,28 +1081,23 @@ static int wm8990_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
int div_id, int div)
{
struct snd_soc_codec *codec = codec_dai->codec;
- u16 reg;
switch (div_id) {
case WM8990_MCLK_DIV:
- reg = snd_soc_read(codec, WM8990_CLOCKING_2) &
- ~WM8990_MCLK_DIV_MASK;
- snd_soc_write(codec, WM8990_CLOCKING_2, reg | div);
+ snd_soc_update_bits(codec, WM8990_CLOCKING_2,
+ WM8990_MCLK_DIV_MASK, div);
break;
case WM8990_DACCLK_DIV:
- reg = snd_soc_read(codec, WM8990_CLOCKING_2) &
- ~WM8990_DAC_CLKDIV_MASK;
- snd_soc_write(codec, WM8990_CLOCKING_2, reg | div);
+ snd_soc_update_bits(codec, WM8990_CLOCKING_2,
+ WM8990_DAC_CLKDIV_MASK, div);
break;
case WM8990_ADCCLK_DIV:
- reg = snd_soc_read(codec, WM8990_CLOCKING_2) &
- ~WM8990_ADC_CLKDIV_MASK;
- snd_soc_write(codec, WM8990_CLOCKING_2, reg | div);
+ snd_soc_update_bits(codec, WM8990_CLOCKING_2,
+ WM8990_ADC_CLKDIV_MASK, div);
break;
case WM8990_BCLK_DIV:
- reg = snd_soc_read(codec, WM8990_CLOCKING_1) &
- ~WM8990_BCLK_DIV_MASK;
- snd_soc_write(codec, WM8990_CLOCKING_1, reg | div);
+ snd_soc_update_bits(codec, WM8990_CLOCKING_1,
+ WM8990_BCLK_DIV_MASK, div);
break;
default:
return -EINVAL;
@@ -1156,7 +1155,7 @@ static int wm8990_mute(struct snd_soc_dai *dai, int mute)
static int wm8990_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
- u16 val;
+ int ret;
switch (level) {
case SND_SOC_BIAS_ON:
@@ -1164,13 +1163,18 @@ static int wm8990_set_bias_level(struct snd_soc_codec *codec,
case SND_SOC_BIAS_PREPARE:
/* VMID=2*50k */
- val = snd_soc_read(codec, WM8990_POWER_MANAGEMENT_1) &
- ~WM8990_VMID_MODE_MASK;
- snd_soc_write(codec, WM8990_POWER_MANAGEMENT_1, val | 0x2);
+ snd_soc_update_bits(codec, WM8990_POWER_MANAGEMENT_1,
+ WM8990_VMID_MODE_MASK, 0x2);
break;
case SND_SOC_BIAS_STANDBY:
if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
+ ret = snd_soc_cache_sync(codec);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to sync cache: %d\n", ret);
+ return ret;
+ }
+
/* Enable all output discharge bits */
snd_soc_write(codec, WM8990_ANTIPOP1, WM8990_DIS_LLINE |
WM8990_DIS_RLINE | WM8990_DIS_OUT3 |
@@ -1225,9 +1229,8 @@ static int wm8990_set_bias_level(struct snd_soc_codec *codec,
}
/* VMID=2*250k */
- val = snd_soc_read(codec, WM8990_POWER_MANAGEMENT_1) &
- ~WM8990_VMID_MODE_MASK;
- snd_soc_write(codec, WM8990_POWER_MANAGEMENT_1, val | 0x4);
+ snd_soc_update_bits(codec, WM8990_POWER_MANAGEMENT_1,
+ WM8990_VMID_MODE_MASK, 0x4);
break;
case SND_SOC_BIAS_OFF:
@@ -1241,8 +1244,8 @@ static int wm8990_set_bias_level(struct snd_soc_codec *codec,
WM8990_BUFIOEN);
/* mute DAC */
- val = snd_soc_read(codec, WM8990_DAC_CTRL);
- snd_soc_write(codec, WM8990_DAC_CTRL, val | WM8990_DAC_MUTE);
+ snd_soc_update_bits(codec, WM8990_DAC_CTRL,
+ WM8990_DAC_MUTE, WM8990_DAC_MUTE);
/* Enable any disabled outputs */
snd_soc_write(codec, WM8990_POWER_MANAGEMENT_1, 0x1f03);
@@ -1319,19 +1322,6 @@ static int wm8990_suspend(struct snd_soc_codec *codec, pm_message_t state)
static int wm8990_resume(struct snd_soc_codec *codec)
{
- int i;
- u8 data[2];
- u16 *cache = codec->reg_cache;
-
- /* Sync reg_cache with the hardware */
- for (i = 0; i < ARRAY_SIZE(wm8990_reg); i++) {
- if (i + 1 == WM8990_RESET)
- continue;
- data[0] = ((i + 1) << 1) | ((cache[i] >> 8) & 0x0001);
- data[1] = cache[i] & 0x00ff;
- codec->hw_write(codec->control_data, data, 2);
- }
-
wm8990_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
return 0;
}
@@ -1343,7 +1333,6 @@ static int wm8990_resume(struct snd_soc_codec *codec)
static int wm8990_probe(struct snd_soc_codec *codec)
{
int ret;
- u16 reg;
ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C);
if (ret < 0) {
@@ -1356,15 +1345,14 @@ static int wm8990_probe(struct snd_soc_codec *codec)
/* charge output caps */
wm8990_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
- reg = snd_soc_read(codec, WM8990_AUDIO_INTERFACE_4);
- snd_soc_write(codec, WM8990_AUDIO_INTERFACE_4, reg | WM8990_ALRCGPIO1);
+ snd_soc_update_bits(codec, WM8990_AUDIO_INTERFACE_4,
+ WM8990_ALRCGPIO1, WM8990_ALRCGPIO1);
- reg = snd_soc_read(codec, WM8990_GPIO1_GPIO2) &
- ~WM8990_GPIO1_SEL_MASK;
- snd_soc_write(codec, WM8990_GPIO1_GPIO2, reg | 1);
+ snd_soc_update_bits(codec, WM8990_GPIO1_GPIO2,
+ WM8990_GPIO1_SEL_MASK, 1);
- reg = snd_soc_read(codec, WM8990_POWER_MANAGEMENT_2);
- snd_soc_write(codec, WM8990_POWER_MANAGEMENT_2, reg | WM8990_OPCLK_ENA);
+ snd_soc_update_bits(codec, WM8990_POWER_MANAGEMENT_2,
+ WM8990_OPCLK_ENA, WM8990_OPCLK_ENA);
snd_soc_write(codec, WM8990_LEFT_OUTPUT_VOLUME, 0x50 | (1<<8));
snd_soc_write(codec, WM8990_RIGHT_OUTPUT_VOLUME, 0x50 | (1<<8));
@@ -1392,6 +1380,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8990 = {
.reg_cache_size = ARRAY_SIZE(wm8990_reg),
.reg_word_size = sizeof(u16),
.reg_cache_default = wm8990_reg,
+ .volatile_register = wm8990_volatile_register,
};
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-13 01:38:03 +0000