[alsa-devel] [PATCH 08/11] ASoC: Intel: boards: Update skl_nau88l25_ssm4567 driver to support chmap

[Pierre-Louis Bossart]

patches 6,7,8 use the same code to add HDMI to the machine driver.
Can this be factored instead of copy/pasted?

On 04/12/2016 12:01 AM, Subhransu S. Prusty wrote:
> HDMI registers channel map controls per PCM. As PCMs are not
> registered during dai_link init callback, store the pcm ids and
> codec DAIs during this init callback.
>
> Register for late probe and call the jack_init API which also
> registers channel map in the late probe callback handler.
>
> Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty at intel.com>
> Signed-off-by: Vinod Koul <vinod.koul at intel.com>
> ---
>   sound/soc/intel/boards/skl_nau88l25_ssm4567.c | 73 +++++++++++++++++++++++++--
>   1 file changed, 70 insertions(+), 3 deletions(-)
>
> diff --git a/sound/soc/intel/boards/skl_nau88l25_ssm4567.c b/sound/soc/intel/boards/skl_nau88l25_ssm4567.c
> index 5f1ca99..968fc74 100644
> --- a/sound/soc/intel/boards/skl_nau88l25_ssm4567.c
> +++ b/sound/soc/intel/boards/skl_nau88l25_ssm4567.c
> @@ -34,6 +34,15 @@
>   static struct snd_soc_jack skylake_headset;
>   static struct snd_soc_card skylake_audio_card;
>   
> +struct skl_hdmi_pcm {
> +	struct list_head head;
> +	struct snd_soc_dai *codec_dai;
> +	int device;
> +};
> +
> +struct skl_nau88125_private {
> +	struct list_head hdmi_pcm_list;
> +};
>   enum {
>   	SKL_DPCM_AUDIO_PB = 0,
>   	SKL_DPCM_AUDIO_CP,
> @@ -222,24 +231,57 @@ static int skylake_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd)
>   
>   static int skylake_hdmi1_init(struct snd_soc_pcm_runtime *rtd)
>   {
> +	struct skl_nau88125_private *ctx = snd_soc_card_get_drvdata(rtd->card);
>   	struct snd_soc_dai *dai = rtd->codec_dai;
> +	struct skl_hdmi_pcm *pcm;
> +
> +	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
> +	if (!pcm)
> +		return -ENOMEM;
> +
> +	pcm->device = SKL_DPCM_AUDIO_HDMI1_PB;
> +	pcm->codec_dai = dai;
> +
> +	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
>   
> -	return hdac_hdmi_jack_init(dai, SKL_DPCM_AUDIO_HDMI1_PB);
> +	return 0;
>   }
>   
>   static int skylake_hdmi2_init(struct snd_soc_pcm_runtime *rtd)
>   {
> +	struct skl_nau88125_private *ctx = snd_soc_card_get_drvdata(rtd->card);
>   	struct snd_soc_dai *dai = rtd->codec_dai;
> +	struct skl_hdmi_pcm *pcm;
> +
> +	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
> +	if (!pcm)
> +		return -ENOMEM;
> +
> +	pcm->device = SKL_DPCM_AUDIO_HDMI2_PB;
> +	pcm->codec_dai = dai;
>   
> -	return hdac_hdmi_jack_init(dai, SKL_DPCM_AUDIO_HDMI2_PB);
> +	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
> +
> +	return 0;
>   }
>   
>   
>   static int skylake_hdmi3_init(struct snd_soc_pcm_runtime *rtd)
>   {
> +	struct skl_nau88125_private *ctx = snd_soc_card_get_drvdata(rtd->card);
>   	struct snd_soc_dai *dai = rtd->codec_dai;
> +	struct skl_hdmi_pcm *pcm;
> +
> +	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
> +	if (!pcm)
> +		return -ENOMEM;
>   
> -	return hdac_hdmi_jack_init(dai, SKL_DPCM_AUDIO_HDMI3_PB);
> +	pcm->device = SKL_DPCM_AUDIO_HDMI3_PB;
> +	pcm->codec_dai = dai;
> +
> +	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
> +
> +	return 0;
>   }
>   
>   static int skylake_nau8825_fe_init(struct snd_soc_pcm_runtime *rtd)
> @@ -585,6 +627,21 @@ static struct snd_soc_dai_link skylake_dais[] = {
>   	},
>   };
>   
> +int skylake_card_late_probe(struct snd_soc_card *card)
> +{
> +	struct skl_nau88125_private *ctx = snd_soc_card_get_drvdata(card);
> +	struct skl_hdmi_pcm *pcm;
> +	int err;
> +
> +	list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
> +		err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device);
> +		if (err < 0)
> +			return err;
> +	}
> +
> +	return 0;
> +}
> +
>   /* skylake audio machine driver for SPT + NAU88L25 */
>   static struct snd_soc_card skylake_audio_card = {
>   	.name = "sklnau8825adi",
> @@ -600,11 +657,21 @@ static struct snd_soc_card skylake_audio_card = {
>   	.codec_conf = ssm4567_codec_conf,
>   	.num_configs = ARRAY_SIZE(ssm4567_codec_conf),
>   	.fully_routed = true,
> +	.late_probe = skylake_card_late_probe,
>   };
>   
>   static int skylake_audio_probe(struct platform_device *pdev)
>   {
> +	struct skl_nau88125_private *ctx;
> +
> +	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC);
> +	if (!ctx)
> +		return -ENOMEM;
> +
> +	INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
> +
>   	skylake_audio_card.dev = &pdev->dev;
> +	snd_soc_card_set_drvdata(&skylake_audio_card, ctx);
>   
>   	return devm_snd_soc_register_card(&pdev->dev, &skylake_audio_card);
>   }