Title: [8652] trunk/sound/soc: ad193x: add set_pll entry in codec driver
- Revision
- 8652
- Author
- bhsong
- Date
- 2010-04-19 04:46:49 -0400 (Mon, 19 Apr 2010)
Log Message
ad193x: add set_pll entry in codec driver
Modified Paths
Diff
Modified: trunk/sound/soc/blackfin/bf5xx-ad193x.c (8651 => 8652)
--- trunk/sound/soc/blackfin/bf5xx-ad193x.c 2010-04-16 13:53:23 UTC (rev 8651)
+++ trunk/sound/soc/blackfin/bf5xx-ad193x.c 2010-04-19 08:46:49 UTC (rev 8652)
@@ -77,6 +77,13 @@
if (ret < 0)
return ret;
+#if 0
+ /* if input frequency is not 12288000, we need set pll */
+ ret = snd_soc_dai_set_pll(codec_dai, 0, 0,
+ 24576000, 12288000);
+ if (ret < 0)
+ return ret;
+#endif
return 0;
}
Modified: trunk/sound/soc/codecs/ad193x.c (8651 => 8652)
--- trunk/sound/soc/codecs/ad193x.c 2010-04-16 13:53:23 UTC (rev 8651)
+++ trunk/sound/soc/codecs/ad193x.c 2010-04-19 08:46:49 UTC (rev 8652)
@@ -248,6 +248,36 @@
return 0;
}
+static int ad193x_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;
+ int reg;
+
+ reg = snd_soc_read(codec, AD193X_PLL_CLK_CTRL0);
+
+ switch (freq_in) {
+ case 12288000:
+ reg = (reg & AD193X_PLL_INPUT_MASK) | AD193X_PLL_INPUT_256;
+ break;
+ case 18432000:
+ reg = (reg & AD193X_PLL_INPUT_MASK) | AD193X_PLL_INPUT_384;
+ break;
+ case 24576000:
+ reg = (reg & AD193X_PLL_INPUT_MASK) | AD193X_PLL_INPUT_512;
+ break;
+ case 36864000:
+ reg = (reg & AD193X_PLL_INPUT_MASK) | AD193X_PLL_INPUT_768;
+ break;
+ default:
+ dev_err(codec->dev, "ad193x_set_dai_pll: unsupported pll input freq:%d", freq_in);
+ return -EINVAL;
+ }
+
+ snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, reg);
+ return 0;
+}
+
static int ad193x_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
@@ -381,6 +411,7 @@
.digital_mute = ad193x_mute,
.set_tdm_slot = ad193x_set_tdm_slot,
.set_fmt = ad193x_set_dai_fmt,
+ .set_pll = ad193x_set_dai_pll,
};
/* codec DAI instance */
Modified: trunk/sound/soc/codecs/ad193x.h (8651 => 8652)
--- trunk/sound/soc/codecs/ad193x.h 2010-04-16 13:53:23 UTC (rev 8651)
+++ trunk/sound/soc/codecs/ad193x.h 2010-04-19 08:46:49 UTC (rev 8652)
@@ -11,6 +11,11 @@
#define AD193X_PLL_CLK_CTRL0 0x800
#define AD193X_PLL_POWERDOWN 0x01
+#define AD193X_PLL_INPUT_MASK (~0x6)
+#define AD193X_PLL_INPUT_256 (0 << 1)
+#define AD193X_PLL_INPUT_384 (1 << 1)
+#define AD193X_PLL_INPUT_512 (2 << 1)
+#define AD193X_PLL_INPUT_768 (3 << 1)
#define AD193X_PLL_CLK_CTRL1 0x801
#define AD193X_DAC_CTRL0 0x802
#define AD193X_DAC_POWERDOWN 0x01
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