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ASoC: ak4642: Add pll select support

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Current ak4642 was not able to select pll.
This patch add support it.
It still expect PLL base input pin is MCKI.
see Table 5 "setting of PLL Mode" of datasheet

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Kuninori Morimoto 2010-03-23 16:27:28 +09:00 committed by Mark Brown
parent 778a76e2db
commit 4b6316b4b1
2 changed files with 43 additions and 7 deletions
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40
sound/soc/codecs/ak4642.c
View File

@ -80,12 +80,18 @@
#define AK4642_CACHEREGNUM 0x25
/* MD_CTL1 */
#define PLL3 (1 << 7)
#define PLL2 (1 << 6)
#define PLL1 (1 << 5)
#define PLL0 (1 << 4)
#define PLL_MASK (PLL3 | PLL2 | PLL1 | PLL0)
struct snd_soc_codec_device soc_codec_dev_ak4642;
/* codec private data */
struct ak4642_priv {
struct snd_soc_codec codec;
unsigned int sysclk;
};
static struct snd_soc_codec *ak4642_codec;
@ -249,9 +255,32 @@ static int ak4642_dai_set_sysclk(struct snd_soc_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_codec *codec = codec_dai->codec;
struct ak4642_priv *ak4642 = codec->private_data;
u8 pll;
switch (freq) {
case 11289600:
pll = PLL2;
break;
case 12288000:
pll = PLL2 | PLL0;
break;
case 12000000:
pll = PLL2 | PLL1;
break;
case 24000000:
pll = PLL2 | PLL1 | PLL0;
break;
case 13500000:
pll = PLL3 | PLL2;
break;
case 27000000:
pll = PLL3 | PLL2 | PLL0;
break;
default:
return -EINVAL;
}
snd_soc_update_bits(codec, MD_CTL1, PLL_MASK, pll);
ak4642->sysclk = freq;
return 0;
}
@ -342,7 +371,6 @@ static int ak4642_init(struct ak4642_priv *ak4642)
*
* Audio I/F Format: MSB justified (ADC & DAC)
* BICK frequency at Master Mode: 64fs
* Input Master Clock Select at PLL Mode: 11.2896MHz
* MCKO: Enable
* Sampling Frequency: 44.1kHz
*
@ -352,10 +380,8 @@ static int ak4642_init(struct ak4642_priv *ak4642)
* please fix-me
*/
ak4642_write(codec, 0x01, 0x08);
ak4642_write(codec, 0x04, 0x4a);
ak4642_write(codec, 0x05, 0x27);
ak4642_write(codec, 0x00, 0x40);
ak4642_write(codec, 0x01, 0x0b);
ak4642_write(codec, 0x04, 0x0a);
return ret;

10
sound/soc/sh/fsi-ak4642.c
View File

@ -22,11 +22,21 @@
#include <sound/sh_fsi.h>
#include <../sound/soc/codecs/ak4642.h>
static int fsi_ak4642_dai_init(struct snd_soc_codec *codec)
{
int ret;
ret = snd_soc_dai_set_sysclk(&ak4642_dai, 0, 11289600, 0);
return ret;
}
static struct snd_soc_dai_link fsi_dai_link = {
.name = "AK4642",
.stream_name = "AK4642",
.cpu_dai = &fsi_soc_dai[0], /* fsi */
.codec_dai = &ak4642_dai,
.init = fsi_ak4642_dai_init,
.ops = NULL,
};