[alsa-devel] [PATCH 2/2] ASoC: fsl_spdif: Add support for output sample rates 96kHz and 192kHz

[Nicolin Chen]

On Mon, Jun 16, 2014 at 02:56:42AM +0300, Anssi Hannula wrote:
> Add support for the output sample rates 96kHz and 192kHz.
> 
> Tested with a Cubox-i imx6 system and an Onkyo TX-SR607 receiver.
> 
> Signed-off-by: Anssi Hannula <anssi.hannula at iki.fi>
> Cc: Nicolin Chen <Guangyu.Chen at freescale.com>

Great, thank you.
Acked-by: Nicolin Chen <nicoleotsuka at gmail.com>

> ---
> 
> Unless there was some special reason to not have this?
> 
> It seems to work at least.
> 
>  sound/soc/fsl/fsl_spdif.c | 14 +++++++++++---
>  sound/soc/fsl/fsl_spdif.h |  8 ++++++--
>  2 files changed, 17 insertions(+), 5 deletions(-)
> 
> diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
> index b912d45a2a4c..71f6a117f46e 100644
> --- a/sound/soc/fsl/fsl_spdif.c
> +++ b/sound/soc/fsl/fsl_spdif.c
> @@ -96,7 +96,7 @@ struct fsl_spdif_priv {
>  	struct platform_device *pdev;
>  	struct regmap *regmap;
>  	bool dpll_locked;
> -	u16 txrate[SPDIF_TXRATE_MAX];
> +	u32 txrate[SPDIF_TXRATE_MAX];
>  	u8 txclk_df[SPDIF_TXRATE_MAX];
>  	u8 sysclk_df[SPDIF_TXRATE_MAX];
>  	u8 txclk_src[SPDIF_TXRATE_MAX];
> @@ -390,6 +390,14 @@ static int spdif_set_sample_rate(struct snd_pcm_substream *substream,
>  		rate = SPDIF_TXRATE_48000;
>  		csfs = IEC958_AES3_CON_FS_48000;
>  		break;
> +	case 96000:
> +		rate = SPDIF_TXRATE_96000;
> +		csfs = IEC958_AES3_CON_FS_96000;
> +		break;
> +	case 192000:
> +		rate = SPDIF_TXRATE_192000;
> +		csfs = IEC958_AES3_CON_FS_192000;
> +		break;
>  	default:
>  		dev_err(&pdev->dev, "unsupported sample rate %d\n", sample_rate);
>  		return -EINVAL;
> @@ -1046,7 +1054,7 @@ static u32 fsl_spdif_txclk_caldiv(struct fsl_spdif_priv *spdif_priv,
>  				struct clk *clk, u64 savesub,
>  				enum spdif_txrate index, bool round)
>  {
> -	const u32 rate[] = { 32000, 44100, 48000 };
> +	const u32 rate[] = { 32000, 44100, 48000, 96000, 192000 };
>  	bool is_sysclk = clk == spdif_priv->sysclk;
>  	u64 rate_ideal, rate_actual, sub;
>  	u32 sysclk_dfmin, sysclk_dfmax;
> @@ -1105,7 +1113,7 @@ out:
>  static int fsl_spdif_probe_txclk(struct fsl_spdif_priv *spdif_priv,
>  				enum spdif_txrate index)
>  {
> -	const u32 rate[] = { 32000, 44100, 48000 };
> +	const u32 rate[] = { 32000, 44100, 48000, 96000, 192000 };
>  	struct platform_device *pdev = spdif_priv->pdev;
>  	struct device *dev = &pdev->dev;
>  	u64 savesub = 100000, ret;
> diff --git a/sound/soc/fsl/fsl_spdif.h b/sound/soc/fsl/fsl_spdif.h
> index 16fde4b927d3..5f5a3c41db25 100644
> --- a/sound/soc/fsl/fsl_spdif.h
> +++ b/sound/soc/fsl/fsl_spdif.h
> @@ -164,8 +164,10 @@ enum spdif_txrate {
>  	SPDIF_TXRATE_32000 = 0,
>  	SPDIF_TXRATE_44100,
>  	SPDIF_TXRATE_48000,
> +	SPDIF_TXRATE_96000,
> +	SPDIF_TXRATE_192000,
>  };
> -#define SPDIF_TXRATE_MAX		(SPDIF_TXRATE_48000 + 1)
> +#define SPDIF_TXRATE_MAX		(SPDIF_TXRATE_192000 + 1)
>  
>  
>  #define SPDIF_CSTATUS_BYTE		6
> @@ -175,7 +177,9 @@ enum spdif_txrate {
>  
>  #define FSL_SPDIF_RATES_PLAYBACK	(SNDRV_PCM_RATE_32000 |	\
>  					 SNDRV_PCM_RATE_44100 |	\
> -					 SNDRV_PCM_RATE_48000)
> +					 SNDRV_PCM_RATE_48000 |	\
> +					 SNDRV_PCM_RATE_96000 |	\
> +					 SNDRV_PCM_RATE_192000)
>  
>  #define FSL_SPDIF_RATES_CAPTURE		(SNDRV_PCM_RATE_16000 | \
>  					 SNDRV_PCM_RATE_32000 |	\
> -- 
> 1.8.4.5
>