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Subject[PATCH 17/25] ASoC: sun8i-codec: Enable all supported sample rates
Date
The system sample rate programmed into the hardware is really a clock
divider from SYSCLK to the ADC and DAC. Since we support two SYSCLK
frequencies, we can use all sample rates corresponding to one of those
frequencies divided by any available divisor.

This commit enables support for those sample rates. It also stops
advertising support for a 64 kHz sample rate, which is not supported.

Signed-off-by: Samuel Holland <samuel@sholland.org>
---
sound/soc/sunxi/sun8i-codec.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/sound/soc/sunxi/sun8i-codec.c b/sound/soc/sunxi/sun8i-codec.c
index f21274530a0e..f4b2a7cc9810 100644
--- a/sound/soc/sunxi/sun8i-codec.c
+++ b/sound/soc/sunxi/sun8i-codec.c
@@ -89,16 +89,23 @@
#define SUN8I_SYS_SR_CTRL_AIF1_FS_MASK GENMASK(15, 12)
#define SUN8I_SYS_SR_CTRL_AIF2_FS_MASK GENMASK(11, 8)
#define SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV_MASK GENMASK(14, 13)
#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK GENMASK(12, 9)
#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK GENMASK(8, 6)
#define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK GENMASK(5, 4)
#define SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT_MASK GENMASK(3, 2)

+#define SUN8I_CODEC_PCM_RATES (SNDRV_PCM_RATE_8000_48000|\
+ SNDRV_PCM_RATE_88200 |\
+ SNDRV_PCM_RATE_96000 |\
+ SNDRV_PCM_RATE_176400 |\
+ SNDRV_PCM_RATE_192000 |\
+ SNDRV_PCM_RATE_KNOT)
+
enum {
AIF1,
NAIFS
};

struct sun8i_codec_aif {
unsigned int slots;
unsigned int slot_width;
@@ -142,37 +149,41 @@ static int sun8i_codec_runtime_suspend(struct device *dev)
return 0;
}

static int sun8i_codec_get_hw_rate(struct snd_pcm_hw_params *params)
{
unsigned int rate = params_rate(params);

switch (rate) {
- case 8000:
case 7350:
+ case 8000:
return 0x0;
case 11025:
return 0x1;
case 12000:
return 0x2;
+ case 14700:
case 16000:
return 0x3;
case 22050:
return 0x4;
case 24000:
return 0x5;
+ case 29400:
case 32000:
return 0x6;
case 44100:
return 0x7;
case 48000:
return 0x8;
+ case 88200:
case 96000:
return 0x9;
+ case 176400:
case 192000:
return 0xa;
default:
return -EINVAL;
}
}

static int sun8i_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
@@ -408,26 +419,26 @@ static struct snd_soc_dai_driver sun8i_codec_dais[] = {
.name = "sun8i-codec-aif1",
.id = AIF1,
.ops = &sun8i_codec_dai_ops,
/* capture capabilities */
.capture = {
.stream_name = "AIF1 Capture",
.channels_min = 1,
.channels_max = 2,
- .rates = SNDRV_PCM_RATE_8000_192000,
+ .rates = SUN8I_CODEC_PCM_RATES,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.sig_bits = 24,
},
/* playback capabilities */
.playback = {
.stream_name = "AIF1 Playback",
.channels_min = 1,
.channels_max = 2,
- .rates = SNDRV_PCM_RATE_8000_192000,
+ .rates = SUN8I_CODEC_PCM_RATES,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
.symmetric_rates = true,
.symmetric_channels = true,
.symmetric_samplebits = true,
},
};

--
2.26.2
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