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Diffstat (limited to 'sound/soc/codecs/wm8903.c')
-rw-r--r--sound/soc/codecs/wm8903.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index 6e887c2c42b1..237eeb9a8b97 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -24,6 +24,7 @@
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/irq.h>
#include <linux/mutex.h>
@@ -115,10 +116,19 @@ static const struct reg_default wm8903_reg_defaults[] = {
{ 172, 0x0000 }, /* R172 - Analogue Output Bias 0 */
};
+#define WM8903_NUM_SUPPLIES 4
+static const char *wm8903_supply_names[WM8903_NUM_SUPPLIES] = {
+ "AVDD",
+ "CPVDD",
+ "DBVDD",
+ "DCVDD",
+};
+
struct wm8903_priv {
struct wm8903_platform_data *pdata;
struct device *dev;
struct regmap *regmap;
+ struct regulator_bulk_data supplies[WM8903_NUM_SUPPLIES];
int sysclk;
int irq;
@@ -2030,6 +2040,23 @@ static int wm8903_i2c_probe(struct i2c_client *i2c,
pdata = wm8903->pdata;
+ for (i = 0; i < ARRAY_SIZE(wm8903->supplies); i++)
+ wm8903->supplies[i].supply = wm8903_supply_names[i];
+
+ ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8903->supplies),
+ wm8903->supplies);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
+ return ret;
+ }
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(wm8903->supplies),
+ wm8903->supplies);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
+ return ret;
+ }
+
ret = regmap_read(wm8903->regmap, WM8903_SW_RESET_AND_ID, &val);
if (ret != 0) {
dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret);
@@ -2160,6 +2187,8 @@ static int wm8903_i2c_probe(struct i2c_client *i2c,
return 0;
err:
+ regulator_bulk_disable(ARRAY_SIZE(wm8903->supplies),
+ wm8903->supplies);
return ret;
}
@@ -2167,6 +2196,8 @@ static int wm8903_i2c_remove(struct i2c_client *client)
{
struct wm8903_priv *wm8903 = i2c_get_clientdata(client);
+ regulator_bulk_disable(ARRAY_SIZE(wm8903->supplies),
+ wm8903->supplies);
if (client->irq)
free_irq(client->irq, wm8903);
wm8903_free_gpio(wm8903);