ASoC: Add source argument to PLL configuration

More and more devices feature PLLs and FLLs with the ability to select
between multiple input clocks. In order to better support these devices
a new argument, source, has been added to the set_pll() configuration
API. Using set_clkdiv() is often difficult due to the need to stop the
PLL/FLL before any reconfiguration can be done.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

21 files changed, 40 insertions, 36 deletions

diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index 97ca9af414dc..16963d4d5df2 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -106,7 +106,7 @@ int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
 	int div_id, int div);
 
 int snd_soc_dai_set_pll(struct snd_soc_dai *dai,
-	int pll_id, unsigned int freq_in, unsigned int freq_out);
+	int pll_id, int source, unsigned int freq_in, unsigned int freq_out);
 
 /* Digital Audio interface formatting */
 int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt);
@@ -136,8 +136,8 @@ struct snd_soc_dai_ops {
 	 */
 	int (*set_sysclk)(struct snd_soc_dai *dai,
 		int clk_id, unsigned int freq, int dir);
-	int (*set_pll)(struct snd_soc_dai *dai,
-		int pll_id, unsigned int freq_in, unsigned int freq_out);
+	int (*set_pll)(struct snd_soc_dai *dai, int pll_id, int source,
+		unsigned int freq_in, unsigned int freq_out);
 	int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div);
 
 	/*
diff --git a/sound/soc/atmel/playpaq_wm8510.c b/sound/soc/atmel/playpaq_wm8510.c
index 9eb610c2ba91..9df4c68ef000 100644
--- a/sound/soc/atmel/playpaq_wm8510.c
+++ b/sound/soc/atmel/playpaq_wm8510.c
@@ -268,7 +268,7 @@ static int playpaq_wm8510_hw_params(struct snd_pcm_substream *substream,
 #endif /* CONFIG_SND_AT32_SOC_PLAYPAQ_SLAVE */
 
 
-	ret = snd_soc_dai_set_pll(codec_dai, 0,
+	ret = snd_soc_dai_set_pll(codec_dai, 0, 0,
 					 clk_get_rate(CODEC_CLK), pll_out);
 	if (ret < 0) {
 		pr_warning("playpaq_wm8510: Failed to set CODEC DAI PLL (%d)\n",
diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c
index 71c9c4bb2632..0ebd99b7493e 100644
--- a/sound/soc/codecs/wm8350.c
+++ b/sound/soc/codecs/wm8350.c
@@ -1101,7 +1101,7 @@ static inline int fll_factors(struct _fll_div *fll_div, unsigned int input,
 }
 
 static int wm8350_set_fll(struct snd_soc_dai *codec_dai,
-			  int pll_id, unsigned int freq_in,
+			  int pll_id, int source, unsigned int freq_in,
 			  unsigned int freq_out)
 {
 	struct snd_soc_codec *codec = codec_dai->codec;
diff --git a/sound/soc/codecs/wm8400.c b/sound/soc/codecs/wm8400.c
index b9ef4d915221..9cb8e50f0fbb 100644
--- a/sound/soc/codecs/wm8400.c
+++ b/sound/soc/codecs/wm8400.c
@@ -1011,7 +1011,8 @@ static int fll_factors(struct wm8400_priv *wm8400, struct fll_factors *factors,
 }
 
 static int wm8400_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
-			      unsigned int freq_in, unsigned int freq_out)
+			      int source, unsigned int freq_in,
+			      unsigned int freq_out)
 {
 	struct snd_soc_codec *codec = codec_dai->codec;
 	struct wm8400_priv *wm8400 = codec->private_data;
diff --git a/sound/soc/codecs/wm8510.c b/sound/soc/codecs/wm8510.c
index 060d5d06ba95..5702435af81b 100644
--- a/sound/soc/codecs/wm8510.c
+++ b/sound/soc/codecs/wm8510.c
@@ -271,8 +271,8 @@ static void pll_factors(unsigned int target, unsigned int source)
 	pll_div.k = K;
 }
 
-static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai,
-		int pll_id, unsigned int freq_in, unsigned int freq_out)
+static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
+		int source, unsigned int freq_in, unsigned int freq_out)
 {
 	struct snd_soc_codec *codec = codec_dai->codec;
 	u16 reg;
diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c
index 6bded8c78150..3be5c0b2552c 100644
--- a/sound/soc/codecs/wm8580.c
+++ b/sound/soc/codecs/wm8580.c
@@ -407,8 +407,8 @@ static int pll_factors(struct _pll_div *pll_div, unsigned int target,
 	return 0;
 }
 
-static int wm8580_set_dai_pll(struct snd_soc_dai *codec_dai,
-		int pll_id, unsigned int freq_in, unsigned int freq_out)
+static int wm8580_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
+		int source, unsigned int freq_in, unsigned int freq_out)
 {
 	int offset;
 	struct snd_soc_codec *codec = codec_dai->codec;
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index d80d414cfbbd..f60f3a02d1f8 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -723,8 +723,8 @@ static void pll_factors(struct _pll_div *pll_div, unsigned int target,
 	pll_div->k = K;
 }
 
-static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai,
-		int pll_id, unsigned int freq_in, unsigned int freq_out)
+static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
+		int source, unsigned int freq_in, unsigned int freq_out)
 {
 	u16 reg, enable;
 	int offset;
diff --git a/sound/soc/codecs/wm8900.c b/sound/soc/codecs/wm8900.c
index 5e9c855c0036..882604ef768c 100644
--- a/sound/soc/codecs/wm8900.c
+++ b/sound/soc/codecs/wm8900.c
@@ -814,8 +814,8 @@ reenable:
 	return 0;
 }
 
-static int wm8900_set_dai_pll(struct snd_soc_dai *codec_dai,
-		int pll_id, unsigned int freq_in, unsigned int freq_out)
+static int wm8900_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
+		int source, unsigned int freq_in, unsigned int freq_out)
 {
 	return wm8900_set_fll(codec_dai->codec, pll_id, freq_in, freq_out);
 }
diff --git a/sound/soc/codecs/wm8940.c b/sound/soc/codecs/wm8940.c
index da97aae475a2..914d788a2b76 100644
--- a/sound/soc/codecs/wm8940.c
+++ b/sound/soc/codecs/wm8940.c
@@ -536,8 +536,8 @@ static void pll_factors(unsigned int target, unsigned int source)
 }
 
 /* Untested at the moment */
-static int wm8940_set_dai_pll(struct snd_soc_dai *codec_dai,
-		int pll_id, unsigned int freq_in, unsigned int freq_out)
+static int wm8940_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
+		int source, unsigned int freq_in, unsigned int freq_out)
 {
 	struct snd_soc_codec *codec = codec_dai->codec;
 	u16 reg;
diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c
index f59703be61c8..416fb3c17018 100644
--- a/sound/soc/codecs/wm8960.c
+++ b/sound/soc/codecs/wm8960.c
@@ -540,8 +540,8 @@ static int pll_factors(unsigned int source, unsigned int target,
 	return 0;
 }
 
-static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai,
-		int pll_id, unsigned int freq_in, unsigned int freq_out)
+static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
+		int source, unsigned int freq_in, unsigned int freq_out)
 {
 	struct snd_soc_codec *codec = codec_dai->codec;
 	u16 reg;
diff --git a/sound/soc/codecs/wm8974.c b/sound/soc/codecs/wm8974.c
index d8a013ab3177..fa4d85bd048b 100644
--- a/sound/soc/codecs/wm8974.c
+++ b/sound/soc/codecs/wm8974.c
@@ -329,8 +329,8 @@ static void pll_factors(unsigned int target, unsigned int source)
 	pll_div.k = K;
 }
 
-static int wm8974_set_dai_pll(struct snd_soc_dai *codec_dai,
-		int pll_id, unsigned int freq_in, unsigned int freq_out)
+static int wm8974_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
+		int source, unsigned int freq_in, unsigned int freq_out)
 {
 	struct snd_soc_codec *codec = codec_dai->codec;
 	u16 reg;
diff --git a/sound/soc/codecs/wm8990.c b/sound/soc/codecs/wm8990.c
index 2d702db4131d..f657e9a5fe26 100644
--- a/sound/soc/codecs/wm8990.c
+++ b/sound/soc/codecs/wm8990.c
@@ -972,8 +972,8 @@ static void pll_factors(struct _pll_div *pll_div, unsigned int target,
 	pll_div->k = K;
 }
 
-static int wm8990_set_dai_pll(struct snd_soc_dai *codec_dai,
-		int pll_id, unsigned int freq_in, unsigned int freq_out)
+static int wm8990_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
+		int source, unsigned int freq_in, unsigned int freq_out)
 {
 	u16 reg;
 	struct snd_soc_codec *codec = codec_dai->codec;
diff --git a/sound/soc/codecs/wm8993.c b/sound/soc/codecs/wm8993.c
index d9987999e92c..6b32a2852603 100644
--- a/sound/soc/codecs/wm8993.c
+++ b/sound/soc/codecs/wm8993.c
@@ -422,7 +422,7 @@ static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
 	return 0;
 }
 
-static int wm8993_set_fll(struct snd_soc_dai *dai, int fll_id,
+static int wm8993_set_fll(struct snd_soc_dai *dai, int fll_id, int source,
 			  unsigned int Fref, unsigned int Fout)
 {
 	struct snd_soc_codec *codec = dai->codec;
diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index abed37acf787..ca3d449ed89e 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -800,8 +800,8 @@ static int wm9713_set_pll(struct snd_soc_codec *codec,
 	return 0;
 }
 
-static int wm9713_set_dai_pll(struct snd_soc_dai *codec_dai,
-		int pll_id, unsigned int freq_in, unsigned int freq_out)
+static int wm9713_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
+		int source, unsigned int freq_in, unsigned int freq_out)
 {
 	struct snd_soc_codec *codec = codec_dai->codec;
 	return wm9713_set_pll(codec, pll_id, freq_in, freq_out);
diff --git a/sound/soc/imx/mx27vis_wm8974.c b/sound/soc/imx/mx27vis_wm8974.c
index e4dcb539108a..0267d2d91685 100644
--- a/sound/soc/imx/mx27vis_wm8974.c
+++ b/sound/soc/imx/mx27vis_wm8974.c
@@ -157,7 +157,7 @@ static int mx27vis_hifi_hw_params(struct snd_pcm_substream *substream,
 
 
 	/* codec PLL input is 25 MHz */
-	ret = codec_dai->ops->set_pll(codec_dai, IGNORED_ARG,
+	ret = codec_dai->ops->set_pll(codec_dai, IGNORED_ARG, IGNORED_ARG,
 					25000000, pll_out);
 	if (ret < 0) {
 		printk(KERN_ERR "Error when setting PLL input\n");
diff --git a/sound/soc/pxa/magician.c b/sound/soc/pxa/magician.c
index 9f7c61e23daf..4c8d99a8d386 100644
--- a/sound/soc/pxa/magician.c
+++ b/sound/soc/pxa/magician.c
@@ -213,7 +213,7 @@ static int magician_playback_hw_params(struct snd_pcm_substream *substream,
 		return ret;
 
 	/* set SSP audio pll clock */
-	ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, acps);
+	ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, 0, acps);
 	if (ret < 0)
 		return ret;
 
diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c
index 5b9ed6464789..57f201c94ca8 100644
--- a/sound/soc/pxa/pxa-ssp.c
+++ b/sound/soc/pxa/pxa-ssp.c
@@ -305,8 +305,8 @@ static int pxa_ssp_set_dai_clkdiv(struct snd_soc_dai *cpu_dai,
 /*
  * Configure the PLL frequency pxa27x and (afaik - pxa320 only)
  */
-static int pxa_ssp_set_dai_pll(struct snd_soc_dai *cpu_dai,
-	int pll_id, unsigned int freq_in, unsigned int freq_out)
+static int pxa_ssp_set_dai_pll(struct snd_soc_dai *cpu_dai, int pll_id,
+	int source, unsigned int freq_in, unsigned int freq_out)
 {
 	struct ssp_priv *priv = cpu_dai->private_data;
 	struct ssp_device *ssp = priv->dev.ssp;
diff --git a/sound/soc/pxa/zylonite.c b/sound/soc/pxa/zylonite.c
index 9a386b4c4ed1..dd678ae24398 100644
--- a/sound/soc/pxa/zylonite.c
+++ b/sound/soc/pxa/zylonite.c
@@ -74,7 +74,8 @@ static const struct snd_soc_dapm_route audio_map[] = {
 static int zylonite_wm9713_init(struct snd_soc_codec *codec)
 {
 	if (clk_pout)
-		snd_soc_dai_set_pll(&codec->dai[0], 0, clk_get_rate(pout), 0);
+		snd_soc_dai_set_pll(&codec->dai[0], 0, 0,
+				    clk_get_rate(pout), 0);
 
 	snd_soc_dapm_new_controls(codec, zylonite_dapm_widgets,
 				  ARRAY_SIZE(zylonite_dapm_widgets));
@@ -128,7 +129,7 @@ static int zylonite_voice_hw_params(struct snd_pcm_substream *substream,
 	if (ret < 0)
 		return ret;
 
-	ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, pll_out);
+	ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, 0, pll_out);
 	if (ret < 0)
 		return ret;
 
diff --git a/sound/soc/s3c24xx/neo1973_gta02_wm8753.c b/sound/soc/s3c24xx/neo1973_gta02_wm8753.c
index 0c52e36ddd87..6ddd1b3b16b3 100644
--- a/sound/soc/s3c24xx/neo1973_gta02_wm8753.c
+++ b/sound/soc/s3c24xx/neo1973_gta02_wm8753.c
@@ -119,7 +119,7 @@ static int neo1973_gta02_hifi_hw_params(struct snd_pcm_substream *substream,
 		return ret;
 
 	/* codec PLL input is PCLK/4 */
-	ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1,
+	ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0,
 		iis_clkrate / 4, pll_out);
 	if (ret < 0)
 		return ret;
diff --git a/sound/soc/s3c24xx/neo1973_wm8753.c b/sound/soc/s3c24xx/neo1973_wm8753.c
index 906709e6dd5f..16009eba9cba 100644
--- a/sound/soc/s3c24xx/neo1973_wm8753.c
+++ b/sound/soc/s3c24xx/neo1973_wm8753.c
@@ -137,7 +137,7 @@ static int neo1973_hifi_hw_params(struct snd_pcm_substream *substream,
 		return ret;
 
 	/* codec PLL input is PCLK/4 */
-	ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1,
+	ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0,
 		iis_clkrate / 4, pll_out);
 	if (ret < 0)
 		return ret;
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 7ff04ad2a97e..05fdc8023da4 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2197,16 +2197,18 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
  * snd_soc_dai_set_pll - configure DAI PLL.
  * @dai: DAI
  * @pll_id: DAI specific PLL ID
+ * @source: DAI specific source for the PLL
  * @freq_in: PLL input clock frequency in Hz
  * @freq_out: requested PLL output clock frequency in Hz
  *
  * Configures and enables PLL to generate output clock based on input clock.
  */
-int snd_soc_dai_set_pll(struct snd_soc_dai *dai,
-	int pll_id, unsigned int freq_in, unsigned int freq_out)
+int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
+	unsigned int freq_in, unsigned int freq_out)
 {
 	if (dai->ops && dai->ops->set_pll)
-		return dai->ops->set_pll(dai, pll_id, freq_in, freq_out);
+		return dai->ops->set_pll(dai, pll_id, source,
+					 freq_in, freq_out);
 	else
 		return -EINVAL;
 }