diff options
| author | Shengjiu Wang <shengjiu.wang@nxp.com> | 2018-01-26 16:44:08 +0800 |
|---|---|---|
| committer | Leonard Crestez <leonard.crestez@nxp.com> | 2018-08-24 12:41:33 +0300 |
| commit | 5c10c08aea955461372c5fe15a34d86e0c33c840 (patch) | |
| tree | 1823bee7c69a819c69252089b9c1407c1f59b60e /sound/soc/codecs | |
| parent | 43a2f9035348498043ab3f0fe835d8a1074dd618 (diff) | |
MLK-17470: ASoC: ak4497: automatically select dsdsel in driver
automatically select dsdsel in driver according to the frequency
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Diffstat (limited to 'sound/soc/codecs')
| -rw-r--r-- | sound/soc/codecs/ak4497.c | 36 | ||||
| -rw-r--r-- | sound/soc/codecs/ak4497.h | 13 |
2 files changed, 49 insertions, 0 deletions
diff --git a/sound/soc/codecs/ak4497.c b/sound/soc/codecs/ak4497.c index 74145a63ebcd..1eb6d40fe085 100644 --- a/sound/soc/codecs/ak4497.c +++ b/sound/soc/codecs/ak4497.c @@ -488,6 +488,8 @@ static int ak4497_hw_params(struct snd_pcm_substream *substream, u8 dfs2; int nfs1; bool is_dsd = false; + int dsd_bclk; + u8 dsdsel0, dsdsel1; if (pcm_format == SNDRV_PCM_FORMAT_DSD_U8 || pcm_format == SNDRV_PCM_FORMAT_DSD_U16_LE || @@ -505,6 +507,13 @@ static int ak4497_hw_params(struct snd_pcm_substream *substream, dfs2 = snd_soc_read(codec, AK4497_05_CONTROL4); dfs2 &= ~AK4497_DFS2; + + dsdsel0 = snd_soc_read(codec, AK4497_06_DSD1); + dsdsel0 &= ~AK4497_DSDSEL0; + + dsdsel1 = snd_soc_read(codec, AK4497_09_DSD2); + dsdsel1 &= ~AK4497_DSDSEL1; + if (!is_dsd) { switch (nfs1) { case 8000: @@ -539,6 +548,33 @@ static int ak4497_hw_params(struct snd_pcm_substream *substream, default: return -EINVAL; } + } else { + dsd_bclk = params_rate(params) * + params_physical_width(params); + + switch (dsd_bclk) { + case 2822400: + dsdsel0 |= AK4497_DSDSEL0_2MHZ; + dsdsel1 |= AK4497_DSDSEL1_2MHZ; + break; + case 5644800: + dsdsel0 |= AK4497_DSDSEL0_5MHZ; + dsdsel1 |= AK4497_DSDSEL1_5MHZ; + break; + case 11289600: + dsdsel0 |= AK4497_DSDSEL0_11MHZ; + dsdsel1 |= AK4497_DSDSEL1_11MHZ; + break; + case 22579200: + dsdsel0 |= AK4497_DSDSEL0_22MHZ; + dsdsel1 |= AK4497_DSDSEL1_22MHZ; + break; + default: + return -EINVAL; + } + + snd_soc_write(codec, AK4497_06_DSD1, dsdsel0); + snd_soc_write(codec, AK4497_09_DSD2, dsdsel1); } snd_soc_write(codec, AK4497_01_CONTROL2, dfs); diff --git a/sound/soc/codecs/ak4497.h b/sound/soc/codecs/ak4497.h index 99bd50666ef2..3ba6762e5ddc 100644 --- a/sound/soc/codecs/ak4497.h +++ b/sound/soc/codecs/ak4497.h @@ -74,4 +74,17 @@ #define AK4497_DFS2_48KHZ (0x0 << 1) // 30kHz to 216kHz #define AK4497_DFS2_384KHZ (0x1 << 1) // 384kHz, 768kHz to 108kHz + +#define AK4497_DSDSEL0 0x1 +#define AK4497_DSDSEL0_2MHZ 0x0 +#define AK4497_DSDSEL0_5MHZ 0x1 +#define AK4497_DSDSEL0_11MHZ 0x0 +#define AK4497_DSDSEL0_22MHZ 0x1 + +#define AK4497_DSDSEL1 0x1 +#define AK4497_DSDSEL1_2MHZ 0x0 +#define AK4497_DSDSEL1_5MHZ 0x0 +#define AK4497_DSDSEL1_11MHZ 0x1 +#define AK4497_DSDSEL1_22MHZ 0x1 + #endif |