[alsa-devel] Applied "ASoC: skl_rt286: Fix to support hdmi channel map support" to the asoc tree

[Mark Brown]

The patch

   ASoC: skl_rt286: Fix to support hdmi channel map support

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 1a10612fc3f5eb5cfa89af3f6b8181d69f79a371 Mon Sep 17 00:00:00 2001
From: "Subhransu S. Prusty" <subhransu.s.prusty at intel.com>
Date: Thu, 14 Apr 2016 10:07:31 +0530
Subject: [PATCH] ASoC: skl_rt286: Fix to support hdmi channel map support

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.

The patch following the machine driver changes adds the channel
map control in the hdac_hdmi codec driver.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty at intel.com>
Signed-off-by: Vinod Koul <vinod.koul at intel.com>
Signed-off-by: Mark Brown <broonie at kernel.org>
---
 sound/soc/intel/boards/skl_rt286.c | 48 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 47 insertions(+), 1 deletion(-)

diff --git a/sound/soc/intel/boards/skl_rt286.c b/sound/soc/intel/boards/skl_rt286.c
index 2016397a8e75..06de802898fb 100644
--- a/sound/soc/intel/boards/skl_rt286.c
+++ b/sound/soc/intel/boards/skl_rt286.c
@@ -30,6 +30,16 @@
 
 static struct snd_soc_jack skylake_headset;
 
+struct skl_hdmi_pcm {
+	struct list_head head;
+	struct snd_soc_dai *codec_dai;
+	int device;
+};
+
+struct skl_rt286_private {
+	struct list_head hdmi_pcm_list;
+};
+
 enum {
 	SKL_DPCM_AUDIO_PB = 0,
 	SKL_DPCM_AUDIO_CP,
@@ -142,9 +152,20 @@ static int skylake_rt286_codec_init(struct snd_soc_pcm_runtime *rtd)
 
 static int skylake_hdmi_init(struct snd_soc_pcm_runtime *rtd)
 {
+	struct skl_rt286_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_HDMI1_PB + dai->id);
+	pcm->device = SKL_DPCM_AUDIO_HDMI1_PB + dai->id;
+	pcm->codec_dai = dai;
+
+	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
+
+	return 0;
 }
 
 static unsigned int rates[] = {
@@ -438,6 +459,21 @@ static struct snd_soc_dai_link skylake_rt286_dais[] = {
 	},
 };
 
+static int skylake_card_late_probe(struct snd_soc_card *card)
+{
+	struct skl_rt286_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 + RT286S */
 static struct snd_soc_card skylake_rt286 = {
 	.name = "skylake-rt286",
@@ -451,11 +487,21 @@ static struct snd_soc_card skylake_rt286 = {
 	.dapm_routes = skylake_rt286_map,
 	.num_dapm_routes = ARRAY_SIZE(skylake_rt286_map),
 	.fully_routed = true,
+	.late_probe = skylake_card_late_probe,
 };
 
 static int skylake_audio_probe(struct platform_device *pdev)
 {
+	struct skl_rt286_private *ctx;
+
+	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC);
+	if (!ctx)
+		return -ENOMEM;
+
+	INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
+
 	skylake_rt286.dev = &pdev->dev;
+	snd_soc_card_set_drvdata(&skylake_rt286, ctx);
 
 	return devm_snd_soc_register_card(&pdev->dev, &skylake_rt286);
 }
-- 
2.8.0.rc3