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Message-Id: <d10df72d2e9985fede7969b5da1f579627f5e821.1586747728.git.shengjiu.wang@nxp.com>
Date: Tue, 14 Apr 2020 08:43:06 +0800
From: Shengjiu Wang <shengjiu.wang@....com>
To: timur@...nel.org, nicoleotsuka@...il.com, Xiubo.Lee@...il.com,
festevam@...il.com, broonie@...nel.org,
alsa-devel@...a-project.org, lgirdwood@...il.com, perex@...ex.cz,
tiwai@...e.com, robh+dt@...nel.org, mark.rutland@....com,
devicetree@...r.kernel.org
Cc: linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH v7 4/7] ASoC: fsl_asrc: Support new property fsl,asrc-format
In order to align with new ESARC, we add new property fsl,asrc-format.
The fsl,asrc-format can replace the fsl,asrc-width, driver
can accept format from devicetree, don't need to convert it to
format through width.
Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
sound/soc/fsl/fsl_asrc.c | 41 +++++++++++++++++++++++-------------
sound/soc/fsl/fsl_asrc.h | 4 ++--
sound/soc/fsl/fsl_asrc_dma.c | 15 ++++++++++---
3 files changed, 40 insertions(+), 20 deletions(-)
diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c
index 4d3e51bfa949..a9458fe268bc 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->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->asrc_format;
config.input_sample_rate = rate;
config.output_sample_rate = asrc->asrc_rate;
} else {
- config.input_format = format;
+ config.input_format = asrc->asrc_format;
config.output_format = params_format(params);
config.input_sample_rate = asrc->asrc_rate;
config.output_sample_rate = rate;
@@ -946,6 +940,7 @@ static int fsl_asrc_probe(struct platform_device *pdev)
int irq, ret, i;
u32 map_idx;
char tmp[16];
+ u32 width;
asrc = devm_kzalloc(&pdev->dev, sizeof(*asrc), GFP_KERNEL);
if (!asrc)
@@ -1052,16 +1047,32 @@ static int fsl_asrc_probe(struct platform_device *pdev)
return ret;
}
- ret = of_property_read_u32(np, "fsl,asrc-width",
- &asrc->asrc_width);
+ ret = of_property_read_u32(np, "fsl,asrc-format", &asrc->asrc_format);
if (ret) {
- dev_err(&pdev->dev, "failed to get output width\n");
- return ret;
+ ret = of_property_read_u32(np, "fsl,asrc-width", &width);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to decide output format\n");
+ return ret;
+ }
+
+ switch (width) {
+ case 16:
+ asrc->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
+ break;
+ case 24:
+ asrc->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
+ break;
+ default:
+ dev_warn(&pdev->dev,
+ "unsupported width, use default S24_LE\n");
+ asrc->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
+ break;
+ }
}
- if (asrc->asrc_width != 16 && asrc->asrc_width != 24) {
- dev_warn(&pdev->dev, "unsupported width, switching to 24bit\n");
- asrc->asrc_width = 24;
+ if (!(FSL_ASRC_FORMATS & (1ULL << asrc->asrc_format))) {
+ dev_warn(&pdev->dev, "unsupported width, use default S24_LE\n");
+ asrc->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
}
platform_set_drvdata(pdev, asrc);
diff --git a/sound/soc/fsl/fsl_asrc.h b/sound/soc/fsl/fsl_asrc.h
index 95d62c45afde..3b0f156af2c3 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 5fe83aece25b..a9dd3155ff35 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, width;
/* 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->asrc_width == 16)
+ width = snd_pcm_format_physical_width(asrc->asrc_format);
+ if (width < 8 || width > 64)
+ return -EINVAL;
+ else if (width == 8)
+ buswidth = DMA_SLAVE_BUSWIDTH_1_BYTE;
+ else if (width == 16)
buswidth = DMA_SLAVE_BUSWIDTH_2_BYTES;
- else
+ else if (width == 24)
+ buswidth = DMA_SLAVE_BUSWIDTH_3_BYTES;
+ else if (width <= 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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