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Message-Id: <20221214044058.6289-1-David.Rau.opensource@dm.renesas.com>
Date: Wed, 14 Dec 2022 04:40:58 +0000
From: David Rau <David.Rau.opensource@...renesas.com>
To: tiwai@...e.com, perex@...ex.cz, piotr.wojtaszczyk@...esys.com
Cc: support.opensource@...semi.com, lgirdwood@...il.com,
broonie@...nel.org, alsa-devel@...a-project.org,
linux-kernel@...r.kernel.org,
David Rau <David.Rau.opensource@...renesas.com>
Subject: [PATCH 2/2] ASoC: da7213: Add support for mono, set frame width to 32 when possible
This adds the DAI mono mode support and set the frame width to 32
Signed-off-by: Piotr Wojtaszczyk <piotr.wojtaszczyk@...esys.com>
Tested-by: David Rau <David.Rau.opensource@...renesas.com>
Signed-off-by: David Rau <David.Rau.opensource@...renesas.com>
---
sound/soc/codecs/da7213.c | 30 ++++++++++++++++++++++++++++--
sound/soc/codecs/da7213.h | 3 +++
2 files changed, 31 insertions(+), 2 deletions(-)
diff --git a/sound/soc/codecs/da7213.c b/sound/soc/codecs/da7213.c
index 544ccbcfc884..0068780fe0a7 100644
--- a/sound/soc/codecs/da7213.c
+++ b/sound/soc/codecs/da7213.c
@@ -1157,13 +1157,31 @@ static int da7213_hw_params(struct snd_pcm_substream *substream,
{
struct snd_soc_component *component = dai->component;
struct da7213_priv *da7213 = snd_soc_component_get_drvdata(component);
+ u8 dai_clk_mode = DA7213_DAI_BCLKS_PER_WCLK_64;
u8 dai_ctrl = 0;
u8 fs;
+ /* Set channels */
+ switch (params_channels(params)) {
+ case 1:
+ if (da7213->fmt != DA7213_DAI_FORMAT_DSP) {
+ dev_err(component->dev, "Mono supported only in DSP mode\n");
+ return -EINVAL;
+ }
+ dai_ctrl |= DA7213_DAI_MONO_MODE_EN;
+ break;
+ case 2:
+ dai_ctrl &= ~(DA7213_DAI_MONO_MODE_EN);
+ break;
+ default:
+ return -EINVAL;
+ }
+
/* Set DAI format */
switch (params_width(params)) {
case 16:
dai_ctrl |= DA7213_DAI_WORD_LENGTH_S16_LE;
+ dai_clk_mode = DA7213_DAI_BCLKS_PER_WCLK_32; /* 32bit for 1ch and 2ch */
break;
case 20:
dai_ctrl |= DA7213_DAI_WORD_LENGTH_S20_LE;
@@ -1224,8 +1242,11 @@ static int da7213_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
}
- snd_soc_component_update_bits(component, DA7213_DAI_CTRL, DA7213_DAI_WORD_LENGTH_MASK,
- dai_ctrl);
+ snd_soc_component_update_bits(component, DA7213_DAI_CLK_MODE,
+ DA7213_DAI_BCLKS_PER_WCLK_MASK, dai_clk_mode);
+
+ snd_soc_component_update_bits(component, DA7213_DAI_CTRL,
+ DA7213_DAI_WORD_LENGTH_MASK | DA7213_DAI_MONO_MODE_MASK, dai_ctrl);
snd_soc_component_write(component, DA7213_SR, fs);
return 0;
@@ -1300,19 +1321,24 @@ static int da7213_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
dai_ctrl |= DA7213_DAI_FORMAT_I2S_MODE;
+ da7213->fmt = DA7213_DAI_FORMAT_I2S_MODE;
break;
case SND_SOC_DAIFMT_LEFT_J:
dai_ctrl |= DA7213_DAI_FORMAT_LEFT_J;
+ da7213->fmt = DA7213_DAI_FORMAT_LEFT_J;
break;
case SND_SOC_DAIFMT_RIGHT_J:
dai_ctrl |= DA7213_DAI_FORMAT_RIGHT_J;
+ da7213->fmt = DA7213_DAI_FORMAT_RIGHT_J;
break;
case SND_SOC_DAI_FORMAT_DSP_A: /* L data MSB after FRM LRC */
dai_ctrl |= DA7213_DAI_FORMAT_DSP;
dai_offset = 1;
+ da7213->fmt = DA7213_DAI_FORMAT_DSP;
break;
case SND_SOC_DAI_FORMAT_DSP_B: /* L data MSB during FRM LRC */
dai_ctrl |= DA7213_DAI_FORMAT_DSP;
+ da7213->fmt = DA7213_DAI_FORMAT_DSP;
break;
default:
return -EINVAL;
diff --git a/sound/soc/codecs/da7213.h b/sound/soc/codecs/da7213.h
index 97ccf0ddd2be..4ca9cfdea06d 100644
--- a/sound/soc/codecs/da7213.h
+++ b/sound/soc/codecs/da7213.h
@@ -195,6 +195,8 @@
#define DA7213_DAI_WORD_LENGTH_S24_LE (0x2 << 2)
#define DA7213_DAI_WORD_LENGTH_S32_LE (0x3 << 2)
#define DA7213_DAI_WORD_LENGTH_MASK (0x3 << 2)
+#define DA7213_DAI_MONO_MODE_EN (0x1 << 4)
+#define DA7213_DAI_MONO_MODE_MASK (0x1 << 4)
#define DA7213_DAI_EN_SHIFT 7
/* DA7213_DIG_ROUTING_DAI = 0x21 */
@@ -542,6 +544,7 @@ struct da7213_priv {
bool alc_en;
bool fixed_clk_auto_pll;
struct da7213_platform_data *pdata;
+ int fmt;
};
#endif /* _DA7213_H */
--
2.17.1
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