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- From 1c906a59a60887e1b997ebab63f19f33a1c69a3e Mon Sep 17 00:00:00 2001
- From: Codrin Ciubotariu <[email protected]>
- Date: Tue, 3 Aug 2021 13:48:25 +0300
- Subject: [PATCH 192/247] ASoC: codecs: ad193x: add support for 96kHz and
- 192kHz playback rates
- ad193x devices support 96KHz and 192KHz sampling rates, when PLL/MCLK is
- referenced to 48kHz.
- Tested on ad1934.
- Signed-off-by: Codrin Ciubotariu <[email protected]>
- Link: https://lore.kernel.org/r/[email protected]
- Signed-off-by: Mark Brown <[email protected]>
- ---
- sound/soc/codecs/ad193x.c | 30 ++++++++++++++++++++++++++++--
- sound/soc/codecs/ad193x.h | 4 ++++
- 2 files changed, 32 insertions(+), 2 deletions(-)
- diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c
- index f37ab7eda615..278a55af158b 100644
- --- a/sound/soc/codecs/ad193x.c
- +++ b/sound/soc/codecs/ad193x.c
- @@ -316,6 +316,13 @@ static int ad193x_hw_params(struct snd_pcm_substream *substream,
- int word_len = 0, master_rate = 0;
- struct snd_soc_component *component = dai->component;
- struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
- + bool is_playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
- + u8 dacc0;
- +
- + dev_dbg(dai->dev, "%s() rate=%u format=%#x width=%u channels=%u\n",
- + __func__, params_rate(params), params_format(params),
- + params_width(params), params_channels(params));
- +
-
- /* bit size */
- switch (params_width(params)) {
- @@ -346,6 +353,25 @@ static int ad193x_hw_params(struct snd_pcm_substream *substream,
- break;
- }
-
- + if (is_playback) {
- + switch (params_rate(params)) {
- + case 48000:
- + dacc0 = AD193X_DAC_SR_48;
- + break;
- + case 96000:
- + dacc0 = AD193X_DAC_SR_96;
- + break;
- + case 192000:
- + dacc0 = AD193X_DAC_SR_192;
- + break;
- + default:
- + dev_err(dai->dev, "invalid sampling rate: %d\n", params_rate(params));
- + return -EINVAL;
- + }
- +
- + regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL0, AD193X_DAC_SR_MASK, dacc0);
- + }
- +
- regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL0,
- AD193X_PLL_INPUT_MASK, master_rate);
-
- @@ -385,7 +411,7 @@ static struct snd_soc_dai_driver ad193x_dai = {
- .stream_name = "Playback",
- .channels_min = 2,
- .channels_max = 8,
- - .rates = SNDRV_PCM_RATE_48000,
- + .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000,
- .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
- SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
- },
- @@ -407,7 +433,7 @@ static struct snd_soc_dai_driver ad193x_no_adc_dai = {
- .stream_name = "Playback",
- .channels_min = 2,
- .channels_max = 8,
- - .rates = SNDRV_PCM_RATE_48000,
- + .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000,
- .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
- SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
- },
- diff --git a/sound/soc/codecs/ad193x.h b/sound/soc/codecs/ad193x.h
- index 377854712c20..61f4648861d5 100644
- --- a/sound/soc/codecs/ad193x.h
- +++ b/sound/soc/codecs/ad193x.h
- @@ -37,6 +37,10 @@ int ad193x_probe(struct device *dev, struct regmap *regmap,
- #define AD193X_PLL_CLK_SRC_MCLK (1 << 1)
- #define AD193X_DAC_CTRL0 0x02
- #define AD193X_DAC_POWERDOWN 0x01
- +#define AD193X_DAC_SR_MASK 0x06
- +#define AD193X_DAC_SR_48 (0 << 1)
- +#define AD193X_DAC_SR_96 (1 << 1)
- +#define AD193X_DAC_SR_192 (2 << 1)
- #define AD193X_DAC_SERFMT_MASK 0xC0
- #define AD193X_DAC_SERFMT_STEREO (0 << 6)
- #define AD193X_DAC_SERFMT_TDM (1 << 6)
- --
- 2.32.0
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