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Subject[PATCH v4 4/8] ASoC: fsl_asrc: Change asrc_width to asrc_format
Date
asrc_format is more inteligent, which is align with the alsa
definition snd_pcm_format_t, we don't need to convert it to
format in driver, and it can distinguish S24_LE & S24_3LE.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
---
sound/soc/fsl/fsl_asrc.c | 19 ++++++-------------
sound/soc/fsl/fsl_asrc.h | 4 ++--
sound/soc/fsl/fsl_asrc_dma.c | 15 ++++++++++++---
3 files changed, 20 insertions(+), 18 deletions(-)

diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c
index 0dcebc24c312..3460ff7f92e2 100644
--- a/sound/soc/fsl/fsl_asrc.c
+++ b/sound/soc/fsl/fsl_asrc.c
@@ -589,7 +589,6 @@ static int fsl_asrc_dai_hw_params(struct snd_pcm_substream *substream,
unsigned int channels = params_channels(params);
unsigned int rate = params_rate(params);
struct asrc_config config;
- snd_pcm_format_t format;
int ret;

ret = fsl_asrc_request_pair(channels, pair);
@@ -600,11 +599,6 @@ static int fsl_asrc_dai_hw_params(struct snd_pcm_substream *substream,

pair->config = &config;

- if (asrc_priv->asrc_width == 16)
- format = SNDRV_PCM_FORMAT_S16_LE;
- else
- format = SNDRV_PCM_FORMAT_S24_LE;
-
config.pair = pair->index;
config.channel_num = channels;
config.inclk = INCLK_NONE;
@@ -612,11 +606,11 @@ static int fsl_asrc_dai_hw_params(struct snd_pcm_substream *substream,

if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
config.input_format = params_format(params);
- config.output_format = format;
+ config.output_format = asrc_priv->asrc_format;
config.input_sample_rate = rate;
config.output_sample_rate = asrc_priv->asrc_rate;
} else {
- config.input_format = format;
+ config.input_format = asrc_priv->asrc_format;
config.output_format = params_format(params);
config.input_sample_rate = asrc_priv->asrc_rate;
config.output_sample_rate = rate;
@@ -1052,16 +1046,15 @@ static int fsl_asrc_probe(struct platform_device *pdev)
return ret;
}

- ret = of_property_read_u32(np, "fsl,asrc-width",
- &asrc_priv->asrc_width);
+ ret = of_property_read_u32(np, "fsl,asrc-format", &asrc_priv->asrc_format);
if (ret) {
dev_err(&pdev->dev, "failed to get output width\n");
return ret;
}

- if (asrc_priv->asrc_width != 16 && asrc_priv->asrc_width != 24) {
- dev_warn(&pdev->dev, "unsupported width, switching to 24bit\n");
- asrc_priv->asrc_width = 24;
+ if (!(FSL_ASRC_FORMATS & (1ULL << asrc_priv->asrc_format))) {
+ dev_warn(&pdev->dev, "unsupported format, switching to S24_LE\n");
+ asrc_priv->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
}

platform_set_drvdata(pdev, asrc_priv);
diff --git a/sound/soc/fsl/fsl_asrc.h b/sound/soc/fsl/fsl_asrc.h
index 8a821132d9d0..4940fa0a7542 100644
--- a/sound/soc/fsl/fsl_asrc.h
+++ b/sound/soc/fsl/fsl_asrc.h
@@ -493,7 +493,7 @@ struct fsl_asrc_pair {
* @channel_avail: non-occupied channel numbers
* @clk_map: clock map for input/output clock
* @asrc_rate: default sample rate for ASoC Back-Ends
- * @asrc_width: default sample width for ASoC Back-Ends
+ * @asrc_format: default sample format for ASoC Back-Ends
* @regcache_cfg: store register value of REG_ASRCFG
*/
struct fsl_asrc {
@@ -514,7 +514,7 @@ struct fsl_asrc {
unsigned char *clk_map[2];

int asrc_rate;
- int asrc_width;
+ snd_pcm_format_t asrc_format;

u32 regcache_cfg;
};
diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c
index 44e5924be870..af6b583aa71e 100644
--- a/sound/soc/fsl/fsl_asrc_dma.c
+++ b/sound/soc/fsl/fsl_asrc_dma.c
@@ -146,7 +146,7 @@ static int fsl_asrc_dma_hw_params(struct snd_soc_component *component,
struct device *dev_be;
u8 dir = tx ? OUT : IN;
dma_cap_mask_t mask;
- int ret;
+ int ret, bits;

/* Fetch the Back-End dma_data from DPCM */
for_each_dpcm_be(rtd, stream, dpcm) {
@@ -230,10 +230,19 @@ static int fsl_asrc_dma_hw_params(struct snd_soc_component *component,
return -EINVAL;
}

- if (asrc_priv->asrc_width == 16)
+ bits = snd_pcm_format_physical_width(asrc_priv->asrc_format);
+ if (bits < 8 || bits > 64)
+ return -EINVAL;
+ else if (bits == 8)
+ buswidth = DMA_SLAVE_BUSWIDTH_1_BYTE;
+ else if (bits == 16)
buswidth = DMA_SLAVE_BUSWIDTH_2_BYTES;
- else
+ else if (bits == 24)
+ buswidth = DMA_SLAVE_BUSWIDTH_3_BYTES;
+ else if (bits <= 32)
buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ else
+ buswidth = DMA_SLAVE_BUSWIDTH_8_BYTES;

config_be.direction = DMA_DEV_TO_DEV;
config_be.src_addr_width = buswidth;
--
2.21.0
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