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ASoC: twl6040: Earphone path correction 

Fix the DAPM routing for the earphone path.
Convert the DAPM_SWITCH_E to DAPM_OUT_DRV_E, so we can have correct
power up, and down sequence for EP.
Introduce mute control (Earphone Playback Switch) for users to
enable/disable the EP path.
Note: the EP does not have it's own dedicated DAC. EP is connected to
HSL DAC.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Peter Ujfalusi 2011-09-22 11:05:49 +03:00 committed by Mark Brown
parent d17bf31832
commit 317596a694
1 changed files with 12 additions and 5 deletions
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17
sound/soc/codecs/twl6040.c
View File

@ -61,6 +61,9 @@
#define TWL6040_REG_SW_SHADOW 0x2F
#define TWL6040_CACHEREGNUM (TWL6040_REG_SW_SHADOW + 1)
/* TWL6040_REG_SW_SHADOW (0x2F) fields */
#define TWL6040_EAR_PATH_ENABLE 0x01
struct twl6040_output {
u16 active;
u16 left_vol;
@ -991,8 +994,8 @@ static const struct snd_kcontrol_new hfl_mux_controls =
static const struct snd_kcontrol_new hfr_mux_controls =
SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
static const struct snd_kcontrol_new ep_driver_switch_controls =
SOC_DAPM_SINGLE("Switch", TWL6040_REG_EARCTL, 0, 1, 0);
static const struct snd_kcontrol_new ep_path_enable_control =
SOC_DAPM_SINGLE("Switch", TWL6040_REG_SW_SHADOW, 0, 1, 0);
/* Headset power mode */
static const char *twl6040_power_mode_texts[] = {
@ -1165,6 +1168,9 @@ static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
SND_SOC_DAPM_MUX("HS Right Playback",
SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
SND_SOC_DAPM_SWITCH("Earphone Playback", SND_SOC_NOPM, 0, 0,
&ep_path_enable_control),
/* Analog playback drivers */
SND_SOC_DAPM_OUT_DRV_E("Handsfree Left Driver",
TWL6040_REG_HFLCTL, 4, 0, NULL, 0,
@ -1182,8 +1188,8 @@ static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
TWL6040_REG_HSRCTL, 2, 0, NULL, 0,
pga_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_SWITCH_E("Earphone Driver",
SND_SOC_NOPM, 0, 0, &ep_driver_switch_controls,
SND_SOC_DAPM_OUT_DRV_E("Earphone Driver",
TWL6040_REG_EARCTL, 0, 0, NULL, 0,
twl6040_power_mode_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
@ -1228,7 +1234,8 @@ static const struct snd_soc_dapm_route intercon[] = {
{"HSOR", NULL, "Headset Right Driver"},
/* Earphone playback path */
{"Earphone Driver", "Switch", "HSDAC Left"},
{"Earphone Playback", "Switch", "HSDAC Left"},
{"Earphone Driver", NULL, "Earphone Playback"},
{"EP", NULL, "Earphone Driver"},
{"HF Left Playback", "HF DAC", "HFDAC Left"},