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Diffstat (limited to 'sound/soc/codecs/tpa6130a2.c')
-rw-r--r--sound/soc/codecs/tpa6130a2.c92
1 files changed, 18 insertions, 74 deletions
diff --git a/sound/soc/codecs/tpa6130a2.c b/sound/soc/codecs/tpa6130a2.c
index 9d61a1d6fce0..0a99f313e218 100644
--- a/sound/soc/codecs/tpa6130a2.c
+++ b/sound/soc/codecs/tpa6130a2.c
@@ -41,7 +41,7 @@ struct tpa6130a2_data {
unsigned char regs[TPA6130A2_CACHEREGNUM];
struct regulator *supply;
int power_gpio;
- unsigned char power_state;
+ u8 power_state:1;
enum tpa_model id;
};
@@ -116,7 +116,7 @@ static int tpa6130a2_initialize(void)
return ret;
}
-static int tpa6130a2_power(int power)
+static int tpa6130a2_power(u8 power)
{
struct tpa6130a2_data *data;
u8 val;
@@ -126,8 +126,10 @@ static int tpa6130a2_power(int power)
data = i2c_get_clientdata(tpa6130a2_client);
mutex_lock(&data->mutex);
- if (power && !data->power_state) {
+ if (power == data->power_state)
+ goto exit;
+ if (power) {
ret = regulator_enable(data->supply);
if (ret != 0) {
dev_err(&tpa6130a2_client->dev,
@@ -149,12 +151,7 @@ static int tpa6130a2_power(int power)
data->power_state = 0;
goto exit;
}
-
- /* Clear SWS */
- val = tpa6130a2_read(TPA6130A2_REG_CONTROL);
- val &= ~TPA6130A2_SWS;
- tpa6130a2_i2c_write(TPA6130A2_REG_CONTROL, val);
- } else if (!power && data->power_state) {
+ } else {
/* set SWS */
val = tpa6130a2_read(TPA6130A2_REG_CONTROL);
val |= TPA6130A2_SWS;
@@ -299,6 +296,7 @@ static void tpa6130a2_channel_enable(u8 channel, int enable)
/* Enable amplifier */
val = tpa6130a2_read(TPA6130A2_REG_CONTROL);
val |= channel;
+ val &= ~TPA6130A2_SWS;
tpa6130a2_i2c_write(TPA6130A2_REG_CONTROL, val);
/* Unmute channel */
@@ -319,72 +317,24 @@ static void tpa6130a2_channel_enable(u8 channel, int enable)
}
}
-static int tpa6130a2_left_event(struct snd_soc_dapm_widget *w,
- struct snd_kcontrol *kcontrol, int event)
-{
- switch (event) {
- case SND_SOC_DAPM_POST_PMU:
- tpa6130a2_channel_enable(TPA6130A2_HP_EN_L, 1);
- break;
- case SND_SOC_DAPM_POST_PMD:
- tpa6130a2_channel_enable(TPA6130A2_HP_EN_L, 0);
- break;
- }
- return 0;
-}
-
-static int tpa6130a2_right_event(struct snd_soc_dapm_widget *w,
- struct snd_kcontrol *kcontrol, int event)
-{
- switch (event) {
- case SND_SOC_DAPM_POST_PMU:
- tpa6130a2_channel_enable(TPA6130A2_HP_EN_R, 1);
- break;
- case SND_SOC_DAPM_POST_PMD:
- tpa6130a2_channel_enable(TPA6130A2_HP_EN_R, 0);
- break;
- }
- return 0;
-}
-
-static int tpa6130a2_supply_event(struct snd_soc_dapm_widget *w,
- struct snd_kcontrol *kcontrol, int event)
+int tpa6130a2_stereo_enable(struct snd_soc_codec *codec, int enable)
{
int ret = 0;
-
- switch (event) {
- case SND_SOC_DAPM_POST_PMU:
+ if (enable) {
ret = tpa6130a2_power(1);
- break;
- case SND_SOC_DAPM_POST_PMD:
+ if (ret < 0)
+ return ret;
+ tpa6130a2_channel_enable(TPA6130A2_HP_EN_R | TPA6130A2_HP_EN_L,
+ 1);
+ } else {
+ tpa6130a2_channel_enable(TPA6130A2_HP_EN_R | TPA6130A2_HP_EN_L,
+ 0);
ret = tpa6130a2_power(0);
- break;
}
+
return ret;
}
-
-static const struct snd_soc_dapm_widget tpa6130a2_dapm_widgets[] = {
- SND_SOC_DAPM_PGA_E("TPA6130A2 Left", SND_SOC_NOPM,
- 0, 0, NULL, 0, tpa6130a2_left_event,
- SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
- SND_SOC_DAPM_PGA_E("TPA6130A2 Right", SND_SOC_NOPM,
- 0, 0, NULL, 0, tpa6130a2_right_event,
- SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
- SND_SOC_DAPM_SUPPLY("TPA6130A2 Enable", SND_SOC_NOPM,
- 0, 0, tpa6130a2_supply_event,
- SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
- /* Outputs */
- SND_SOC_DAPM_OUTPUT("TPA6130A2 Headphone Left"),
- SND_SOC_DAPM_OUTPUT("TPA6130A2 Headphone Right"),
-};
-
-static const struct snd_soc_dapm_route audio_map[] = {
- {"TPA6130A2 Headphone Left", NULL, "TPA6130A2 Left"},
- {"TPA6130A2 Headphone Right", NULL, "TPA6130A2 Right"},
-
- {"TPA6130A2 Headphone Left", NULL, "TPA6130A2 Enable"},
- {"TPA6130A2 Headphone Right", NULL, "TPA6130A2 Enable"},
-};
+EXPORT_SYMBOL_GPL(tpa6130a2_stereo_enable);
int tpa6130a2_add_controls(struct snd_soc_codec *codec)
{
@@ -396,18 +346,12 @@ int tpa6130a2_add_controls(struct snd_soc_codec *codec)
data = i2c_get_clientdata(tpa6130a2_client);
- snd_soc_dapm_new_controls(dapm, tpa6130a2_dapm_widgets,
- ARRAY_SIZE(tpa6130a2_dapm_widgets));
-
- snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
-
if (data->id == TPA6140A2)
return snd_soc_add_controls(codec, tpa6140a2_controls,
ARRAY_SIZE(tpa6140a2_controls));
else
return snd_soc_add_controls(codec, tpa6130a2_controls,
ARRAY_SIZE(tpa6130a2_controls));
-
}
EXPORT_SYMBOL_GPL(tpa6130a2_add_controls);