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Diffstat (limited to 'sound/soc/codecs/wm2000.c')
-rw-r--r--sound/soc/codecs/wm2000.c72
1 files changed, 49 insertions, 23 deletions
diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c
index a3acb7a85f6..683dc43b1d8 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;
@@ -760,7 +784,7 @@ static int __devinit wm2000_i2c_probe(struct i2c_client *i2c,
dev_set_drvdata(&i2c->dev, wm2000);
- wm2000->regmap = regmap_init_i2c(i2c, &wm2000_regmap);
+ wm2000->regmap = devm_regmap_init_i2c(i2c, &wm2000_regmap);
if (IS_ERR(wm2000->regmap)) {
ret = PTR_ERR(wm2000->regmap);
dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
@@ -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_regmap_exit;
+ 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_regmap_exit;
+ 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_regmap_exit;
+ goto err_supplies;
}
wm2000->anc_download[0] = 0x80;
@@ -822,11 +862,10 @@ 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;
-out_regmap_exit:
- regmap_exit(wm2000->regmap);
+err_supplies:
+ regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies);
+
out:
release_firmware(fw);
return ret;
@@ -834,10 +873,7 @@ out:
static __devexit int wm2000_i2c_remove(struct i2c_client *i2c)
{
- struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev);
-
snd_soc_unregister_codec(&i2c->dev);
- regmap_exit(wm2000->regmap);
return 0;
}
@@ -858,17 +894,7 @@ static struct i2c_driver wm2000_i2c_driver = {
.id_table = wm2000_i2c_id,
};
-static int __init wm2000_init(void)
-{
- return i2c_add_driver(&wm2000_i2c_driver);
-}
-module_init(wm2000_init);
-
-static void __exit wm2000_exit(void)
-{
- i2c_del_driver(&wm2000_i2c_driver);
-}
-module_exit(wm2000_exit);
+module_i2c_driver(wm2000_i2c_driver);
MODULE_DESCRIPTION("ASoC WM2000 driver");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfonmicro.com>");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 12:59:00 +0000