ASoC: Intel: boards: Update skl_nau88l25_max98357a driver to support chmap

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@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 71 insertions, 3 deletions

diff --git a/sound/soc/intel/boards/skl_nau88l25_max98357a.c b/sound/soc/intel/boards/skl_nau88l25_max98357a.c
index 72176b79a18d..8ccc97c6255f 100644
--- a/sound/soc/intel/boards/skl_nau88l25_max98357a.c
+++ b/sound/soc/intel/boards/skl_nau88l25_max98357a.c
@@ -30,6 +30,16 @@
 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_nau8825_private {
+        struct list_head hdmi_pcm_list;
+};
+
 enum {
         SKL_DPCM_AUDIO_PB = 0,
         SKL_DPCM_AUDIO_CP,
@@ -192,23 +202,56 @@ 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_nau8825_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;
 
-        return hdac_hdmi_jack_init(dai, SKL_DPCM_AUDIO_HDMI1_PB);
+        list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
+
+        return 0;
 }
 
 static int skylake_hdmi2_init(struct snd_soc_pcm_runtime *rtd)
 {
+        struct skl_nau8825_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_HDMI2_PB);
+        pcm->device = SKL_DPCM_AUDIO_HDMI2_PB;
+        pcm->codec_dai = dai;
+
+        list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
+
+        return 0;
 }
 
 static int skylake_hdmi3_init(struct snd_soc_pcm_runtime *rtd)
 {
+        struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card);
         struct snd_soc_dai *dai = rtd->codec_dai;
+        struct skl_hdmi_pcm *pcm;
 
-        return hdac_hdmi_jack_init(dai, SKL_DPCM_AUDIO_HDMI3_PB);
+        pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
+        if (!pcm)
+                return -ENOMEM;
+
+        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)
@@ -534,6 +577,21 @@ static struct snd_soc_dai_link skylake_dais[] = {
         },
 };
 
+static int skylake_card_late_probe(struct snd_soc_card *card)
+{
+        struct skl_nau8825_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 = "sklnau8825max",
@@ -547,11 +605,21 @@ static struct snd_soc_card skylake_audio_card = {
         .dapm_routes = skylake_map,
         .num_dapm_routes = ARRAY_SIZE(skylake_map),
         .fully_routed = true,
+        .late_probe = skylake_card_late_probe,
 };
 
 static int skylake_audio_probe(struct platform_device *pdev)
 {
+        struct skl_nau8825_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);
 }