diff options
| -rw-r--r-- | sound/soc/codecs/wm2000.c | 53 |
1 files changed, 47 insertions, 6 deletions
diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c index 6675477a63c..b723e910fcd 100644 --- a/sound/soc/codecs/wm2000.c +++ b/sound/soc/codecs/wm2000.c @@ -31,6 +31,7 @@ #include <linux/i2c.h> #include <linux/regmap.h> #include <linux/debugfs.h> +#include <linux/regulator/consumer.h> #include <linux/slab.h> #include <sound/core.h> #include <sound/pcm.h> @@ -43,6 +44,14 @@ #include "wm2000.h" +#define WM2000_NUM_SUPPLIES 3 + +static const char *wm2000_supplies[WM2000_NUM_SUPPLIES] = { + "SPKVDD", + "DBVDD", + "DCVDD", +}; + enum wm2000_anc_mode { ANC_ACTIVE = 0, ANC_BYPASS = 1, @@ -54,6 +63,8 @@ struct wm2000_priv { struct i2c_client *i2c; struct regmap *regmap; + struct regulator_bulk_data supplies[WM2000_NUM_SUPPLIES]; + enum wm2000_anc_mode anc_mode; unsigned int anc_active:1; @@ -126,6 +137,12 @@ static int wm2000_power_up(struct i2c_client *i2c, int analogue) dev_dbg(&i2c->dev, "Beginning power up\n"); + ret = regulator_bulk_enable(WM2000_NUM_SUPPLIES, wm2000->supplies); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret); + return ret; + } + if (!wm2000->mclk_div) { dev_dbg(&i2c->dev, "Disabling MCLK divider\n"); wm2000_write(i2c, WM2000_REG_SYS_CTL2, @@ -143,12 +160,14 @@ static int wm2000_power_up(struct i2c_client *i2c, int analogue) if (!wm2000_poll_bit(i2c, WM2000_REG_ANC_STAT, WM2000_ANC_ENG_IDLE)) { dev_err(&i2c->dev, "ANC engine failed to reset\n"); + regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); return -ETIMEDOUT; } if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, WM2000_STATUS_BOOT_COMPLETE)) { dev_err(&i2c->dev, "ANC engine failed to initialise\n"); + regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); return -ETIMEDOUT; } @@ -163,11 +182,13 @@ static int wm2000_power_up(struct i2c_client *i2c, int analogue) wm2000->anc_download_size); if (ret < 0) { dev_err(&i2c->dev, "i2c_transfer() failed: %d\n", ret); + regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); return ret; } if (ret != wm2000->anc_download_size) { dev_err(&i2c->dev, "i2c_transfer() failed, %d != %d\n", ret, wm2000->anc_download_size); + regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); return -EIO; } @@ -201,6 +222,7 @@ static int wm2000_power_up(struct i2c_client *i2c, int analogue) if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, WM2000_STATUS_MOUSE_ACTIVE)) { dev_err(&i2c->dev, "Timed out waiting for device\n"); + regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); return -ETIMEDOUT; } @@ -238,6 +260,8 @@ static int wm2000_power_down(struct i2c_client *i2c, int analogue) return -ETIMEDOUT; } + regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); + dev_dbg(&i2c->dev, "powered off\n"); wm2000->anc_mode = ANC_OFF; @@ -747,7 +771,7 @@ static int __devinit wm2000_i2c_probe(struct i2c_client *i2c, struct wm2000_platform_data *pdata; const char *filename; const struct firmware *fw = NULL; - int ret; + int ret, i; int reg; u16 id; @@ -768,6 +792,22 @@ static int __devinit wm2000_i2c_probe(struct i2c_client *i2c, goto out; } + for (i = 0; i < WM2000_NUM_SUPPLIES; i++) + wm2000->supplies[i].supply = wm2000_supplies[i]; + + ret = devm_regulator_bulk_get(&i2c->dev, WM2000_NUM_SUPPLIES, + wm2000->supplies); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to get supplies: %d\n", ret); + return ret; + } + + ret = regulator_bulk_enable(WM2000_NUM_SUPPLIES, wm2000->supplies); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret); + return ret; + } + /* Verify that this is a WM2000 */ reg = wm2000_read(i2c, WM2000_REG_ID1); id = reg << 8; @@ -777,7 +817,7 @@ static int __devinit wm2000_i2c_probe(struct i2c_client *i2c, if (id != 0x2000) { dev_err(&i2c->dev, "Device is not a WM2000 - ID %x\n", id); ret = -ENODEV; - goto out; + goto err_supplies; } reg = wm2000_read(i2c, WM2000_REG_REVISON); @@ -796,7 +836,7 @@ static int __devinit wm2000_i2c_probe(struct i2c_client *i2c, ret = request_firmware(&fw, filename, &i2c->dev); if (ret != 0) { dev_err(&i2c->dev, "Failed to acquire ANC data: %d\n", ret); - goto out; + goto err_supplies; } /* Pre-cook the concatenation of the register address onto the image */ @@ -807,7 +847,7 @@ static int __devinit wm2000_i2c_probe(struct i2c_client *i2c, if (wm2000->anc_download == NULL) { dev_err(&i2c->dev, "Out of memory\n"); ret = -ENOMEM; - goto out; + goto err_supplies; } wm2000->anc_download[0] = 0x80; @@ -822,8 +862,9 @@ static int __devinit wm2000_i2c_probe(struct i2c_client *i2c, wm2000_reset(wm2000); ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm2000, NULL, 0); - if (!ret) - goto out; + +err_supplies: + regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); out: release_firmware(fw); |