diff options
| author | Rahul Mittal <rmittal@nvidia.com> | 2012-09-28 19:26:19 +0530 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-10-25 12:20:06 -0700 |
| commit | 8d6714a209227befaeb829c653cfac3707265ada (patch) | |
| tree | 3cf3c1bf29b2dc5eb4603663c84f60a39a4ba0a0 /sound | |
| parent | fcd6c9231f8119aac3be723198bf0fd8c68651e3 (diff) | |
asoc: tegra: cs42l73: Add DMIC regulator on/off support
Enable/disable DMIC regulator based on DAPM event
Bug 1053229
Signed-off-by: Rahul Mittal <rmittal@nvidia.com>
Reviewed-on: http://git-master/r/138867
(cherry picked from commit 4dc7b8efdaa70a9bb8b99e63011a0ddd16b66aaa)
Change-Id: I09661d981735c682be85d7999ce54478f75d88dd
Signed-off-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-on: http://git-master/r/146959
Reviewed-by: Simone Willett <swillett@nvidia.com>
Tested-by: Simone Willett <swillett@nvidia.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/tegra/tegra_cs42l73.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/sound/soc/tegra/tegra_cs42l73.c b/sound/soc/tegra/tegra_cs42l73.c index 0fe0f56106f2..cfcf88a96a42 100644 --- a/sound/soc/tegra/tegra_cs42l73.c +++ b/sound/soc/tegra/tegra_cs42l73.c @@ -63,6 +63,7 @@ struct tegra_cs42l73 { int is_call_mode; int is_device_bt; struct regulator *dmic_reg; + struct regulator *dmic_1v8_reg; enum snd_soc_bias_level bias_level; struct snd_soc_card *pcard; #ifdef CONFIG_SWITCH @@ -254,6 +255,33 @@ static struct snd_soc_jack_pin tegra_cs42l73_hs_jack_pins[] = { }; #endif +static int tegra_cs42l73_event_int_mic(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + struct snd_soc_dapm_context *dapm = w->dapm; + struct snd_soc_card *card = dapm->card; + struct tegra_cs42l73 *machine = snd_soc_card_get_drvdata(card); + struct tegra_asoc_platform_data *pdata = machine->pdata; + + if (machine->dmic_reg && machine->dmic_1v8_reg) { + if (SND_SOC_DAPM_EVENT_ON(event)) { + regulator_enable(machine->dmic_reg); + regulator_enable(machine->dmic_1v8_reg); + } else { + regulator_disable(machine->dmic_reg); + regulator_disable(machine->dmic_1v8_reg); + } + } + + if (!(machine->gpio_requested & GPIO_INT_MIC_EN)) + return 0; + + gpio_set_value_cansleep(pdata->gpio_int_mic_en, + SND_SOC_DAPM_EVENT_ON(event)); + + return 0; +} + static int tegra_cs42l73_event_int_spk(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { @@ -275,7 +303,7 @@ static const struct snd_soc_dapm_widget tegra_cs42l73_dapm_widgets[] = { SND_SOC_DAPM_SPK("Int Spk", tegra_cs42l73_event_int_spk), SND_SOC_DAPM_HP("Headphone", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), - SND_SOC_DAPM_INPUT("Int D-Mic"), + SND_SOC_DAPM_MIC("Int D-Mic", tegra_cs42l73_event_int_mic), }; /* cs42l73 Audio Map */ @@ -293,6 +321,7 @@ static const struct snd_soc_dapm_route tegra_cs42l73_audio_map[] = { static const struct snd_kcontrol_new tegra_cs42l73_controls[] = { SOC_DAPM_PIN_SWITCH("Int Spk"), + SOC_DAPM_PIN_SWITCH("Int D-Mic"), }; static int tegra_cs42l73_init(struct snd_soc_pcm_runtime *rtd) @@ -494,6 +523,12 @@ static __devinit int tegra_cs42l73_driver_probe(struct platform_device *pdev) machine->dmic_reg = 0; } + machine->dmic_1v8_reg = regulator_get(&pdev->dev, "vdd_1v8_mic"); + if (IS_ERR(machine->dmic_1v8_reg)) { + dev_info(&pdev->dev, "No digital mic regulator found\n"); + machine->dmic_1v8_reg = 0; + } + #ifdef CONFIG_SWITCH /* Addd h2w swith class support */ ret = switch_dev_register(&tegra_cs42l73_headset_switch); @@ -558,6 +593,8 @@ static int __devexit tegra_cs42l73_driver_remove(struct platform_device *pdev) if (machine->dmic_reg) regulator_put(machine->dmic_reg); + if (machine->dmic_1v8_reg) + regulator_put(machine->dmic_1v8_reg); if (gpio_is_valid(pdata->gpio_ldo1_en)) { gpio_set_value(pdata->gpio_ldo1_en, 0); |