diff options
| author | Kuninori Morimoto <morimoto.kuninori@renesas.com> | 2010-03-23 07:27:28 (GMT) |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-03-23 10:59:11 (GMT) |
| commit | 4b6316b4b16c7fb5d51df43f0371416e054e7102 (patch) | |
| tree | 72571695549ff0a1b55ad8e55bf122e21dce90aa /sound/soc/codecs/ak4642.c | |
| parent | 778a76e2dbdb896d005849e9e74518d6aba85671 (diff) | |
| download | linux-4b6316b4b16c7fb5d51df43f0371416e054e7102.tar.xz | |
ASoC: ak4642: Add pll select support
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>
Diffstat (limited to 'sound/soc/codecs/ak4642.c')
| -rw-r--r-- | sound/soc/codecs/ak4642.c | 40 |
1 files changed, 33 insertions, 7 deletions
diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c index 3ef16bb..d5bd4ca 100644 --- a/sound/soc/codecs/ak4642.c +++ b/sound/soc/codecs/ak4642.c @@ -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; |