ad193x devices support 96KHz and 192KHz sampling rates, when PLL/MCLK is referenced to 48kHz. Tested on ad1934.

Signed-off-by: Codrin Ciubotariu codrin.ciubotariu@microchip.com --- 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)