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92 lines
3.2 KiB
Diff
92 lines
3.2 KiB
Diff
From 1c906a59a60887e1b997ebab63f19f33a1c69a3e Mon Sep 17 00:00:00 2001
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From: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
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Date: Tue, 3 Aug 2021 13:48:25 +0300
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Subject: [PATCH 192/247] ASoC: codecs: ad193x: add support for 96kHz and
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192kHz playback rates
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ad193x devices support 96KHz and 192KHz sampling rates, when PLL/MCLK is
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referenced to 48kHz.
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Tested on ad1934.
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Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
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Link: https://lore.kernel.org/r/20210803104825.2198335-1-codrin.ciubotariu@microchip.com
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Signed-off-by: Mark Brown <broonie@kernel.org>
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---
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sound/soc/codecs/ad193x.c | 30 ++++++++++++++++++++++++++++--
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sound/soc/codecs/ad193x.h | 4 ++++
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2 files changed, 32 insertions(+), 2 deletions(-)
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--- a/sound/soc/codecs/ad193x.c
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+++ b/sound/soc/codecs/ad193x.c
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@@ -316,6 +316,13 @@ static int ad193x_hw_params(struct snd_p
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int word_len = 0, master_rate = 0;
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struct snd_soc_component *component = dai->component;
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struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
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+ bool is_playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
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+ u8 dacc0;
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+
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+ dev_dbg(dai->dev, "%s() rate=%u format=%#x width=%u channels=%u\n",
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+ __func__, params_rate(params), params_format(params),
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+ params_width(params), params_channels(params));
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+
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/* bit size */
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switch (params_width(params)) {
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@@ -346,6 +353,25 @@ static int ad193x_hw_params(struct snd_p
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break;
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}
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+ if (is_playback) {
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+ switch (params_rate(params)) {
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+ case 48000:
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+ dacc0 = AD193X_DAC_SR_48;
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+ break;
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+ case 96000:
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+ dacc0 = AD193X_DAC_SR_96;
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+ break;
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+ case 192000:
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+ dacc0 = AD193X_DAC_SR_192;
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+ break;
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+ default:
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+ dev_err(dai->dev, "invalid sampling rate: %d\n", params_rate(params));
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+ return -EINVAL;
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+ }
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+
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+ regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL0, AD193X_DAC_SR_MASK, dacc0);
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+ }
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+
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regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL0,
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AD193X_PLL_INPUT_MASK, master_rate);
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@@ -385,7 +411,7 @@ static struct snd_soc_dai_driver ad193x_
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.stream_name = "Playback",
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.channels_min = 2,
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.channels_max = 8,
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- .rates = SNDRV_PCM_RATE_48000,
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+ .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000,
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.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
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SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
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},
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@@ -407,7 +433,7 @@ static struct snd_soc_dai_driver ad193x_
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.stream_name = "Playback",
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.channels_min = 2,
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.channels_max = 8,
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- .rates = SNDRV_PCM_RATE_48000,
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+ .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000,
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.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
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SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
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},
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--- a/sound/soc/codecs/ad193x.h
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+++ b/sound/soc/codecs/ad193x.h
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@@ -37,6 +37,10 @@ int ad193x_probe(struct device *dev, str
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#define AD193X_PLL_CLK_SRC_MCLK (1 << 1)
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#define AD193X_DAC_CTRL0 0x02
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#define AD193X_DAC_POWERDOWN 0x01
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+#define AD193X_DAC_SR_MASK 0x06
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+#define AD193X_DAC_SR_48 (0 << 1)
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+#define AD193X_DAC_SR_96 (1 << 1)
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+#define AD193X_DAC_SR_192 (2 << 1)
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#define AD193X_DAC_SERFMT_MASK 0xC0
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#define AD193X_DAC_SERFMT_STEREO (0 << 6)
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#define AD193X_DAC_SERFMT_TDM (1 << 6)
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