diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/wm8580.c | 38 |
1 files changed, 35 insertions, 3 deletions
diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c index 261ef101d4f..97b9ed95d28 100644 --- a/sound/soc/codecs/wm8580.c +++ b/sound/soc/codecs/wm8580.c @@ -24,6 +24,8 @@ #include <linux/pm.h> #include <linux/i2c.h> #include <linux/platform_device.h> +#include <linux/regulator/consumer.h> + #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -187,15 +189,22 @@ struct pll_state { unsigned int out; }; +#define WM8580_NUM_SUPPLIES 3 +static const char *wm8580_supply_names[WM8580_NUM_SUPPLIES] = { + "AVDD", + "DVDD", + "PVDD", +}; + /* codec private data */ struct wm8580_priv { struct snd_soc_codec codec; + struct regulator_bulk_data supplies[WM8580_NUM_SUPPLIES]; u16 reg_cache[WM8580_MAX_REGISTER + 1]; struct pll_state a; struct pll_state b; }; - /* * read wm8580 register cache */ @@ -922,11 +931,28 @@ static int wm8580_register(struct wm8580_priv *wm8580) memcpy(codec->reg_cache, wm8580_reg, sizeof(wm8580_reg)); + for (i = 0; i < ARRAY_SIZE(wm8580->supplies); i++) + wm8580->supplies[i].supply = wm8580_supply_names[i]; + + ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8580->supplies), + wm8580->supplies); + if (ret != 0) { + dev_err(codec->dev, "Failed to request supplies: %d\n", ret); + goto err; + } + + ret = regulator_bulk_enable(ARRAY_SIZE(wm8580->supplies), + wm8580->supplies); + if (ret != 0) { + dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); + goto err_regulator_get; + } + /* Get the codec into a known state */ ret = wm8580_write(codec, WM8580_RESET, 0); if (ret != 0) { dev_err(codec->dev, "Failed to reset codec: %d\n", ret); - goto err; + goto err_regulator_enable; } for (i = 0; i < ARRAY_SIZE(wm8580_dai); i++) @@ -939,7 +965,7 @@ static int wm8580_register(struct wm8580_priv *wm8580) ret = snd_soc_register_codec(codec); if (ret != 0) { dev_err(codec->dev, "Failed to register codec: %d\n", ret); - goto err; + goto err_regulator_enable; } ret = snd_soc_register_dais(wm8580_dai, ARRAY_SIZE(wm8580_dai)); @@ -952,6 +978,10 @@ static int wm8580_register(struct wm8580_priv *wm8580) err_codec: snd_soc_unregister_codec(codec); +err_regulator_enable: + regulator_bulk_disable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies); +err_regulator_get: + regulator_bulk_free(ARRAY_SIZE(wm8580->supplies), wm8580->supplies); err: kfree(wm8580); return ret; @@ -962,6 +992,8 @@ static void wm8580_unregister(struct wm8580_priv *wm8580) wm8580_set_bias_level(&wm8580->codec, SND_SOC_BIAS_OFF); snd_soc_unregister_dais(wm8580_dai, ARRAY_SIZE(wm8580_dai)); snd_soc_unregister_codec(&wm8580->codec); + regulator_bulk_disable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies); + regulator_bulk_free(ARRAY_SIZE(wm8580->supplies), wm8580->supplies); kfree(wm8580); wm8580_codec = NULL; } |