Re: [PATCH v6 4/7] ASoC: fsl_asrc: Support new property fsl,asrc-format

2020-04-06 Thread Nicolin Chen
Just some small comments.

On Wed, Apr 01, 2020 at 04:45:37PM +0800, Shengjiu Wang wrote:
> 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 
> ---
>  sound/soc/fsl/fsl_asrc.c | 40 ++--
>  sound/soc/fsl/fsl_asrc.h |  4 ++--
>  sound/soc/fsl/fsl_asrc_dma.c | 15 +++---
>  3 files changed, 39 insertions(+), 20 deletions(-)
> 
> diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c
> index 4d3e51bfa949..eea19e2b723b 100644
> --- a/sound/soc/fsl/fsl_asrc.c
> +++ b/sound/soc/fsl/fsl_asrc.c
> @@ -1052,16 +1047,31 @@ static int fsl_asrc_probe(struct platform_device 
> *pdev)
>   return ret;
>   }
>  
> - ret = of_property_read_u32(np, "fsl,asrc-width",
> ->asrc_width);
> + ret = of_property_read_u32(np, "fsl,asrc-format", >asrc_format);
>   if (ret) {
> - dev_err(>dev, "failed to get output width\n");
> - return ret;
> + ret = of_property_read_u32(np, "fsl,asrc-width", );
> + if (ret) {
> + dev_err(>dev, "failed to get output width\n");

Similar to the comments against sound card driver:
"failed to decide output format"

> + 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(>dev, "unsupported width, switching to 
> 24bit\n");

Should match what the code does after the change:
+   dev_warn(>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(>dev, "unsupported width, switching to 24bit\n");
> - asrc->asrc_width = 24;
> + if (!(FSL_ASRC_FORMATS & (1ULL << asrc->asrc_format))) {
> + dev_warn(>dev, "unsupported format, switching to 
> S24_LE\n");

Could fit 80 characters:
+   dev_warn(>dev, "unsupported width, use default S24_LE\n");

> diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c
> index 5fe83aece25b..b15946e03380 100644
> --- a/sound/soc/fsl/fsl_asrc_dma.c
> +++ b/sound/soc/fsl/fsl_asrc_dma.c
> @@ -230,10 +230,19 @@ static int fsl_asrc_dma_hw_params(struct 
> snd_soc_component *component,
>   return -EINVAL;
>   }
>  
> - if (asrc->asrc_width == 16)
> + bits = snd_pcm_format_physical_width(asrc->asrc_format);

Can we just use 'width' to match the function name?


[PATCH v6 4/7] ASoC: fsl_asrc: Support new property fsl,asrc-format

2020-04-01 Thread Shengjiu Wang
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 
---
 sound/soc/fsl/fsl_asrc.c | 40 ++--
 sound/soc/fsl/fsl_asrc.h |  4 ++--
 sound/soc/fsl/fsl_asrc_dma.c | 15 +++---
 3 files changed, 39 insertions(+), 20 deletions(-)

diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c
index 4d3e51bfa949..eea19e2b723b 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 = 
 
-   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(>dev, sizeof(*asrc), GFP_KERNEL);
if (!asrc)
@@ -1052,16 +1047,31 @@ static int fsl_asrc_probe(struct platform_device *pdev)
return ret;
}
 
-   ret = of_property_read_u32(np, "fsl,asrc-width",
-  >asrc_width);
+   ret = of_property_read_u32(np, "fsl,asrc-format", >asrc_format);
if (ret) {
-   dev_err(>dev, "failed to get output width\n");
-   return ret;
+   ret = of_property_read_u32(np, "fsl,asrc-width", );
+   if (ret) {
+   dev_err(>dev, "failed to get output width\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(>dev, "unsupported width, switching to 
24bit\n");
+   asrc->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
+   break;
+   }
}
 
-   if (asrc->asrc_width != 16 && asrc->asrc_width != 24) {
-   dev_warn(>dev, "unsupported width, switching to 24bit\n");
-   asrc->asrc_width = 24;
+   if (!(FSL_ASRC_FORMATS & (1ULL << asrc->asrc_format))) {
+   dev_warn(>dev, "unsupported format, switching to 
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..b15946e03380 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 ?