Allow the DBVDD2 and DBVDD3 rails to be powered down when idle, helping fully power down connected devices when idle.

Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com --- sound/soc/codecs/wm5100.c | 82 ++++++++++++++++++++++++++++++++++++++++++++- 1 files changed, 81 insertions(+), 1 deletions(-)

diff --git a/sound/soc/codecs/wm5100.c b/sound/soc/codecs/wm5100.c index a30b0bf..eff252b 100644 --- a/sound/soc/codecs/wm5100.c +++ b/sound/soc/codecs/wm5100.c @@ -55,6 +55,8 @@ struct wm5100_priv {

struct regulator_bulk_data core_supplies[WM5100_NUM_CORE_SUPPLIES]; struct regulator *cpvdd; + struct regulator *dbvdd2; + struct regulator *dbvdd3;

int rev;

@@ -804,6 +806,52 @@ static int wm5100_cp_ev(struct snd_soc_dapm_widget *w, } }

+static int wm5100_dbvdd_ev(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, + int event) +{ + struct snd_soc_codec *codec = w->codec; + struct wm5100_priv *wm5100 = snd_soc_codec_get_drvdata(codec); + struct regulator *regulator; + int ret; + + switch (w->shift) { + case 2: + regulator = wm5100->dbvdd2; + break; + case 3: + regulator = wm5100->dbvdd3; + break; + default: + BUG(); + return 0; + } + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + ret = regulator_enable(regulator); + if (ret != 0) { + dev_err(codec->dev, "Failed to enable DBVDD%d: %d\n", + w->shift, ret); + return ret; + } + return ret; + + case SND_SOC_DAPM_POST_PMD: + ret = regulator_disable(regulator); + if (ret != 0) { + dev_err(codec->dev, "Failed to enable DBVDD%d: %d\n", + w->shift, ret); + return ret; + } + return ret; + + default: + BUG(); + return 0; + } +} + static void wm5100_log_status3(struct snd_soc_codec *codec, int val) { if (val & WM5100_SPK_SHUTDOWN_WARN_EINT) @@ -881,6 +929,10 @@ SND_SOC_DAPM_SUPPLY("CP2", WM5100_MIC_CHARGE_PUMP_1, WM5100_CP2_ENA_SHIFT, 0, SND_SOC_DAPM_SUPPLY("CP2 Active", WM5100_MIC_CHARGE_PUMP_1, WM5100_CP2_BYPASS_SHIFT, 1, wm5100_cp_ev, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), +SND_SOC_DAPM_SUPPLY("DBVDD2", SND_SOC_NOPM, 2, 0, wm5100_dbvdd_ev, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), +SND_SOC_DAPM_SUPPLY("DBVDD3", SND_SOC_NOPM, 3, 0, wm5100_dbvdd_ev, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),

SND_SOC_DAPM_SUPPLY("MICBIAS1", WM5100_MIC_BIAS_CTRL_1, WM5100_MICB1_ENA_SHIFT, 0, NULL, 0), @@ -1123,10 +1175,14 @@ static const struct snd_soc_dapm_route wm5100_dapm_routes[] = { { "AIF1RX8", NULL, "SYSCLK" },

{ "AIF2RX1", NULL, "SYSCLK" }, + { "AIF2RX1", NULL, "DBVDD2" }, { "AIF2RX2", NULL, "SYSCLK" }, + { "AIF2RX2", NULL, "DBVDD2" },

{ "AIF3RX1", NULL, "SYSCLK" }, + { "AIF3RX1", NULL, "DBVDD3" }, { "AIF3RX2", NULL, "SYSCLK" }, + { "AIF3RX2", NULL, "DBVDD3" },

{ "AIF1TX1", NULL, "SYSCLK" }, { "AIF1TX2", NULL, "SYSCLK" }, @@ -1138,10 +1194,14 @@ static const struct snd_soc_dapm_route wm5100_dapm_routes[] = { { "AIF1TX8", NULL, "SYSCLK" },

{ "AIF2TX1", NULL, "SYSCLK" }, + { "AIF2TX1", NULL, "DBVDD2" }, { "AIF2TX2", NULL, "SYSCLK" }, + { "AIF2TX2", NULL, "DBVDD2" },

{ "AIF3TX1", NULL, "SYSCLK" }, + { "AIF3TX1", NULL, "DBVDD3" }, { "AIF3TX2", NULL, "SYSCLK" }, + { "AIF3TX2", NULL, "DBVDD3" },

{ "MICBIAS1", NULL, "CP2" }, { "MICBIAS2", NULL, "CP2" }, @@ -2251,12 +2311,26 @@ static int wm5100_probe(struct snd_soc_codec *codec) goto err_core; }

+ wm5100->dbvdd2 = regulator_get(&i2c->dev, "DBVDD2"); + if (IS_ERR(wm5100->dbvdd2)) { + ret = PTR_ERR(wm5100->dbvdd2); + dev_err(&i2c->dev, "Failed to get DBVDD2: %d\n", ret); + goto err_cpvdd; + } + + wm5100->dbvdd3 = regulator_get(&i2c->dev, "DBVDD3"); + if (IS_ERR(wm5100->dbvdd3)) { + ret = PTR_ERR(wm5100->dbvdd3); + dev_err(&i2c->dev, "Failed to get DBVDD2: %d\n", ret); + goto err_dbvdd2; + } + ret = regulator_bulk_enable(ARRAY_SIZE(wm5100->core_supplies), wm5100->core_supplies); if (ret != 0) { dev_err(codec->dev, "Failed to enable core supplies: %d\n", ret); - goto err_cpvdd; + goto err_dbvdd3; }

if (wm5100->pdata.ldo_ena) { @@ -2433,6 +2507,10 @@ err_ldo: err_enable: regulator_bulk_disable(ARRAY_SIZE(wm5100->core_supplies), wm5100->core_supplies); +err_dbvdd3: + regulator_put(wm5100->dbvdd3); +err_dbvdd2: + regulator_put(wm5100->dbvdd2); err_cpvdd: regulator_put(wm5100->cpvdd); err_core: @@ -2459,6 +2537,8 @@ static int wm5100_remove(struct snd_soc_codec *codec) gpio_set_value_cansleep(wm5100->pdata.ldo_ena, 0); gpio_free(wm5100->pdata.ldo_ena); } + regulator_put(wm5100->dbvdd3); + regulator_put(wm5100->dbvdd2); regulator_put(wm5100->cpvdd); regulator_bulk_free(ARRAY_SIZE(wm5100->core_supplies), wm5100->core_supplies);