Enable WM8904 to support common clock framework.
Signed-off-by: Bo Shen voice.shen@atmel.com --- sound/soc/codecs/wm8904.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c index f7c5499..af28cc6 100644 --- a/sound/soc/codecs/wm8904.c +++ b/sound/soc/codecs/wm8904.c @@ -11,6 +11,7 @@ * published by the Free Software Foundation. */
+#include <linux/clk.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/init.h> @@ -49,6 +50,7 @@ static const char *wm8904_supply_names[WM8904_NUM_SUPPLIES] = { /* codec private data */ struct wm8904_priv { struct regmap *regmap; + struct clk *mclk;
enum wm8904_type devtype;
@@ -1828,6 +1830,8 @@ static int wm8904_set_bias_level(struct snd_soc_codec *codec,
switch (level) { case SND_SOC_BIAS_ON: + if (wm8904->mclk) + clk_prepare_enable(wm8904->mclk); break;
case SND_SOC_BIAS_PREPARE: @@ -1894,6 +1898,8 @@ static int wm8904_set_bias_level(struct snd_soc_codec *codec,
regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); + if (wm8904->mclk) + clk_disable_unprepare(wm8904->mclk); break; } codec->dapm.bias_level = level; @@ -2110,6 +2116,13 @@ static int wm8904_i2c_probe(struct i2c_client *i2c, if (wm8904 == NULL) return -ENOMEM;
+ wm8904->mclk = devm_clk_get(&i2c->dev, "mclk"); + if (IS_ERR(wm8904->mclk)) { + ret = PTR_ERR(wm8904->mclk); + dev_err(&i2c->dev, "Failed to get MCLK\n"); + return ret; + } + wm8904->regmap = devm_regmap_init_i2c(i2c, &wm8904_regmap); if (IS_ERR(wm8904->regmap)) { ret = PTR_ERR(wm8904->regmap);