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