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From:   Trevor Wu <trevor.wu@mediatek.com>
To:     <broonie@kernel.org>, <lgirdwood@gmail.com>, <tiwai@suse.com>,
        <perex@perex.cz>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <conor+dt@kernel.org>,
        <matthias.bgg@gmail.com>, <angelogioacchino.delregno@collabora.com>
CC:     <trevor.wu@mediatek.com>, <alsa-devel@alsa-project.org>,
        <linux-mediatek@lists.infradead.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>
Subject: [PATCH v3 3/3] ASoC: mediatek: mt8188-mt6359: add SOF support
Date:   Thu, 10 Aug 2023 16:11:39 +0800
Message-ID: <20230810081139.27957-4-trevor.wu@mediatek.com>
In-Reply-To: <20230810081139.27957-1-trevor.wu@mediatek.com>
References: <20230810081139.27957-1-trevor.wu@mediatek.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

SOF is enabled when adsp phandle is assigned to "mediatek,adsp".
The required callback will be assigned when SOF is enabled.

Additionally, "mediatek,dai-link" is introduced to decide the supported
dai links for a project, so user can reuse the machine driver regardless
of dai link combination.

Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 sound/soc/mediatek/mt8188/mt8188-mt6359.c | 218 ++++++++++++++++++++--
 1 file changed, 205 insertions(+), 13 deletions(-)

diff --git a/sound/soc/mediatek/mt8188/mt8188-mt6359.c b/sound/soc/mediatek/mt8188/mt8188-mt6359.c
index e7ac2b6671d3..40d0a7265c19 100644
--- a/sound/soc/mediatek/mt8188/mt8188-mt6359.c
+++ b/sound/soc/mediatek/mt8188/mt8188-mt6359.c
@@ -19,6 +19,8 @@
 #include "../../codecs/mt6359.h"
 #include "../common/mtk-afe-platform-driver.h"
 #include "../common/mtk-soundcard-driver.h"
+#include "../common/mtk-dsp-sof-common.h"
+#include "../common/mtk-soc-card.h"
 
 #define CKSYS_AUD_TOP_CFG	0x032c
  #define RG_TEST_ON		BIT(0)
@@ -45,6 +47,11 @@
  */
 #define NAU8825_CODEC_DAI  "nau8825-hifi"
 
+#define SOF_DMA_DL2 "SOF_DMA_DL2"
+#define SOF_DMA_DL3 "SOF_DMA_DL3"
+#define SOF_DMA_UL4 "SOF_DMA_UL4"
+#define SOF_DMA_UL5 "SOF_DMA_UL5"
+
 /* FE */
 SND_SOC_DAILINK_DEFS(playback2,
 		     DAILINK_COMP_ARRAY(COMP_CPU("DL2")),
@@ -176,6 +183,49 @@ SND_SOC_DAILINK_DEFS(ul_src,
 						   "dmic-hifi")),
 		     DAILINK_COMP_ARRAY(COMP_EMPTY()));
 
+SND_SOC_DAILINK_DEFS(AFE_SOF_DL2,
+		     DAILINK_COMP_ARRAY(COMP_CPU("SOF_DL2")),
+		     DAILINK_COMP_ARRAY(COMP_DUMMY()),
+		     DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(AFE_SOF_DL3,
+		     DAILINK_COMP_ARRAY(COMP_CPU("SOF_DL3")),
+		     DAILINK_COMP_ARRAY(COMP_DUMMY()),
+		     DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(AFE_SOF_UL4,
+		     DAILINK_COMP_ARRAY(COMP_CPU("SOF_UL4")),
+		     DAILINK_COMP_ARRAY(COMP_DUMMY()),
+		     DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(AFE_SOF_UL5,
+		     DAILINK_COMP_ARRAY(COMP_CPU("SOF_UL5")),
+		     DAILINK_COMP_ARRAY(COMP_DUMMY()),
+		     DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static const struct sof_conn_stream g_sof_conn_streams[] = {
+	{
+		.sof_link = "AFE_SOF_DL2",
+		.sof_dma = SOF_DMA_DL2,
+		.stream_dir = SNDRV_PCM_STREAM_PLAYBACK
+	},
+	{
+		.sof_link = "AFE_SOF_DL3",
+		.sof_dma = SOF_DMA_DL3,
+		.stream_dir = SNDRV_PCM_STREAM_PLAYBACK
+	},
+	{
+		.sof_link = "AFE_SOF_UL4",
+		.sof_dma = SOF_DMA_UL4,
+		.stream_dir = SNDRV_PCM_STREAM_CAPTURE
+	},
+	{
+		.sof_link = "AFE_SOF_UL5",
+		.sof_dma = SOF_DMA_UL5,
+		.stream_dir = SNDRV_PCM_STREAM_CAPTURE
+	},
+};
+
 struct mt8188_mt6359_priv {
 	struct snd_soc_jack dp_jack;
 	struct snd_soc_jack hdmi_jack;
@@ -246,6 +296,10 @@ static const struct snd_soc_dapm_widget mt8188_mt6359_widgets[] = {
 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 	SND_SOC_DAPM_SINK("HDMI"),
 	SND_SOC_DAPM_SINK("DP"),
+	SND_SOC_DAPM_MIXER(SOF_DMA_DL2, SND_SOC_NOPM, 0, 0, NULL, 0),
+	SND_SOC_DAPM_MIXER(SOF_DMA_DL3, SND_SOC_NOPM, 0, 0, NULL, 0),
+	SND_SOC_DAPM_MIXER(SOF_DMA_UL4, SND_SOC_NOPM, 0, 0, NULL, 0),
+	SND_SOC_DAPM_MIXER(SOF_DMA_UL5, SND_SOC_NOPM, 0, 0, NULL, 0),
 
 	/* dynamic pinctrl */
 	SND_SOC_DAPM_PINCTRL("ETDM_SPK_PIN", "aud_etdm_spk_on", "aud_etdm_spk_off"),
@@ -266,6 +320,19 @@ static const struct snd_kcontrol_new mt8188_nau8825_controls[] = {
 	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
 };
 
+static const struct snd_soc_dapm_route mt8188_mt6359_routes[] = {
+	/* SOF Uplink */
+	{SOF_DMA_UL4, NULL, "O034"},
+	{SOF_DMA_UL4, NULL, "O035"},
+	{SOF_DMA_UL5, NULL, "O036"},
+	{SOF_DMA_UL5, NULL, "O037"},
+	/* SOF Downlink */
+	{"I070", NULL, SOF_DMA_DL2},
+	{"I071", NULL, SOF_DMA_DL2},
+	{"I020", NULL, SOF_DMA_DL3},
+	{"I021", NULL, SOF_DMA_DL3},
+};
+
 static int mt8188_mt6359_mtkaif_calibration(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_component *cmpnt_afe =
@@ -471,8 +538,17 @@ enum {
 	DAI_LINK_ETDM3_OUT_BE,
 	DAI_LINK_PCM1_BE,
 	DAI_LINK_UL_SRC_BE,
+	DAI_LINK_REGULAR_LAST = DAI_LINK_UL_SRC_BE,
+	DAI_LINK_SOF_START,
+	DAI_LINK_SOF_DL2_BE = DAI_LINK_SOF_START,
+	DAI_LINK_SOF_DL3_BE,
+	DAI_LINK_SOF_UL4_BE,
+	DAI_LINK_SOF_UL5_BE,
+	DAI_LINK_SOF_END = DAI_LINK_SOF_UL5_BE,
 };
 
+#define	DAI_LINK_REGULAR_NUM	(DAI_LINK_REGULAR_LAST + 1)
+
 static int mt8188_dptx_hw_params(struct snd_pcm_substream *substream,
 				 struct snd_pcm_hw_params *params)
 {
@@ -503,7 +579,8 @@ static int mt8188_dptx_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 
 static int mt8188_hdmi_codec_init(struct snd_soc_pcm_runtime *rtd)
 {
-	struct mt8188_mt6359_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct mtk_soc_card_data *soc_card_data = snd_soc_card_get_drvdata(rtd->card);
+	struct mt8188_mt6359_priv *priv = soc_card_data->mach_priv;
 	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
 	int ret = 0;
 
@@ -528,7 +605,8 @@ static int mt8188_hdmi_codec_init(struct snd_soc_pcm_runtime *rtd)
 
 static int mt8188_dptx_codec_init(struct snd_soc_pcm_runtime *rtd)
 {
-	struct mt8188_mt6359_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct mtk_soc_card_data *soc_card_data = snd_soc_card_get_drvdata(rtd->card);
+	struct mt8188_mt6359_priv *priv = soc_card_data->mach_priv;
 	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
 	int ret = 0;
 
@@ -648,7 +726,8 @@ static int mt8188_max98390_codec_init(struct snd_soc_pcm_runtime *rtd)
 static int mt8188_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_card *card = rtd->card;
-	struct mt8188_mt6359_priv *priv = snd_soc_card_get_drvdata(card);
+	struct mtk_soc_card_data *soc_card_data = snd_soc_card_get_drvdata(card);
+	struct mt8188_mt6359_priv *priv = soc_card_data->mach_priv;
 	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
 	struct snd_soc_jack *jack = &priv->headset_jack;
 	int ret;
@@ -733,6 +812,33 @@ static int mt8188_nau8825_hw_params(struct snd_pcm_substream *substream,
 static const struct snd_soc_ops mt8188_nau8825_ops = {
 	.hw_params = mt8188_nau8825_hw_params,
 };
+
+static int mt8188_sof_be_hw_params(struct snd_pcm_substream *substream,
+				   struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_component *cmpnt_afe = NULL;
+	struct snd_soc_pcm_runtime *runtime;
+
+	/* find afe component */
+	for_each_card_rtds(rtd->card, runtime) {
+		cmpnt_afe = snd_soc_rtdcom_lookup(runtime, AFE_PCM_NAME);
+		if (cmpnt_afe)
+			break;
+	}
+
+	if (cmpnt_afe && !pm_runtime_active(cmpnt_afe->dev)) {
+		dev_err(rtd->dev, "afe pm runtime is not active!!\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_ops mt8188_sof_be_ops = {
+	.hw_params = mt8188_sof_be_hw_params,
+};
+
 static struct snd_soc_dai_link mt8188_mt6359_dai_links[] = {
 	/* FE */
 	[DAI_LINK_DL2_FE] = {
@@ -1003,6 +1109,36 @@ static struct snd_soc_dai_link mt8188_mt6359_dai_links[] = {
 		.dpcm_capture = 1,
 		SND_SOC_DAILINK_REG(ul_src),
 	},
+
+	/* SOF BE */
+	[DAI_LINK_SOF_DL2_BE] = {
+		.name = "AFE_SOF_DL2",
+		.no_pcm = 1,
+		.dpcm_playback = 1,
+		.ops = &mt8188_sof_be_ops,
+		SND_SOC_DAILINK_REG(AFE_SOF_DL2),
+	},
+	[DAI_LINK_SOF_DL3_BE] = {
+		.name = "AFE_SOF_DL3",
+		.no_pcm = 1,
+		.dpcm_playback = 1,
+		.ops = &mt8188_sof_be_ops,
+		SND_SOC_DAILINK_REG(AFE_SOF_DL3),
+	},
+	[DAI_LINK_SOF_UL4_BE] = {
+		.name = "AFE_SOF_UL4",
+		.no_pcm = 1,
+		.dpcm_capture = 1,
+		.ops = &mt8188_sof_be_ops,
+		SND_SOC_DAILINK_REG(AFE_SOF_UL4),
+	},
+	[DAI_LINK_SOF_UL5_BE] = {
+		.name = "AFE_SOF_UL5",
+		.no_pcm = 1,
+		.dpcm_capture = 1,
+		.ops = &mt8188_sof_be_ops,
+		SND_SOC_DAILINK_REG(AFE_SOF_UL5),
+	},
 };
 
 static struct snd_kcontrol *ctl_find(struct snd_card *card, const char *name)
@@ -1017,7 +1153,8 @@ static struct snd_kcontrol *ctl_find(struct snd_card *card, const char *name)
 
 static void mt8188_fixup_controls(struct snd_soc_card *card)
 {
-	struct mt8188_mt6359_priv *priv = snd_soc_card_get_drvdata(card);
+	struct mtk_soc_card_data *soc_card_data = snd_soc_card_get_drvdata(card);
+	struct mt8188_mt6359_priv *priv = soc_card_data->mach_priv;
 	struct mt8188_card_data *card_data = (struct mt8188_card_data *)priv->private_data;
 	struct snd_kcontrol *kctl;
 
@@ -1045,6 +1182,8 @@ static struct snd_soc_card mt8188_mt6359_soc_card = {
 	.num_links = ARRAY_SIZE(mt8188_mt6359_dai_links),
 	.dapm_widgets = mt8188_mt6359_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(mt8188_mt6359_widgets),
+	.dapm_routes = mt8188_mt6359_routes,
+	.num_dapm_routes = ARRAY_SIZE(mt8188_mt6359_routes),
 	.controls = mt8188_mt6359_controls,
 	.num_controls = ARRAY_SIZE(mt8188_mt6359_controls),
 	.fixup_controls = mt8188_fixup_controls,
@@ -1054,6 +1193,8 @@ static int mt8188_mt6359_dev_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &mt8188_mt6359_soc_card;
 	struct device_node *platform_node;
+	struct device_node *adsp_node;
+	struct mtk_soc_card_data *soc_card_data;
 	struct mt8188_mt6359_priv *priv;
 	struct mt8188_card_data *card_data;
 	struct snd_soc_dai_link *dai_link;
@@ -1074,21 +1215,64 @@ static int mt8188_mt6359_dev_probe(struct platform_device *pdev)
 	if (!card->name)
 		card->name = card_data->name;
 
-	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return  -ENOMEM;
-
 	if (of_property_read_bool(pdev->dev.of_node, "audio-routing")) {
 		ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
 		if (ret)
 			return ret;
 	}
 
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	soc_card_data = devm_kzalloc(&pdev->dev, sizeof(*card_data), GFP_KERNEL);
+	if (!soc_card_data)
+		return -ENOMEM;
+
+	soc_card_data->mach_priv = priv;
+
+	adsp_node = of_parse_phandle(pdev->dev.of_node, "mediatek,adsp", 0);
+	if (adsp_node) {
+		struct mtk_sof_priv *sof_priv;
+
+		sof_priv = devm_kzalloc(&pdev->dev, sizeof(*sof_priv), GFP_KERNEL);
+		if (!sof_priv) {
+			ret = -ENOMEM;
+			goto err_adsp_node;
+		}
+		sof_priv->conn_streams = g_sof_conn_streams;
+		sof_priv->num_streams = ARRAY_SIZE(g_sof_conn_streams);
+		soc_card_data->sof_priv = sof_priv;
+		card->probe = mtk_sof_card_probe;
+		card->late_probe = mtk_sof_card_late_probe;
+		if (!card->topology_shortname_created) {
+			snprintf(card->topology_shortname, 32, "sof-%s", card->name);
+			card->topology_shortname_created = true;
+		}
+		card->name = card->topology_shortname;
+	}
+
+	if (of_property_read_bool(pdev->dev.of_node, "mediatek,dai-link")) {
+		ret = mtk_sof_dailink_parse_of(card, pdev->dev.of_node,
+					       "mediatek,dai-link",
+					       mt8188_mt6359_dai_links,
+					       ARRAY_SIZE(mt8188_mt6359_dai_links));
+		if (ret) {
+			dev_err_probe(&pdev->dev, ret, "Parse dai-link fail\n");
+			goto err_adsp_node;
+		}
+	} else {
+		if (!adsp_node)
+			card->num_links = DAI_LINK_REGULAR_NUM;
+	}
+
 	platform_node = of_parse_phandle(pdev->dev.of_node,
 					 "mediatek,platform", 0);
 	if (!platform_node) {
-		ret = -EINVAL;
-		return dev_err_probe(&pdev->dev, ret, "Property 'platform' missing or invalid\n");
+		ret = dev_err_probe(&pdev->dev, -EINVAL,
+				    "Property 'platform' missing or invalid\n");
+		goto err_adsp_node;
+
 	}
 
 	ret = parse_dai_link_info(card);
@@ -1096,8 +1280,12 @@ static int mt8188_mt6359_dev_probe(struct platform_device *pdev)
 		goto err;
 
 	for_each_card_prelinks(card, i, dai_link) {
-		if (!dai_link->platforms->name)
-			dai_link->platforms->of_node = platform_node;
+		if (!dai_link->platforms->name) {
+			if (!strncmp(dai_link->name, "AFE_SOF", strlen("AFE_SOF")) && adsp_node)
+				dai_link->platforms->of_node = adsp_node;
+			else
+				dai_link->platforms->of_node = platform_node;
+		}
 
 		if (strcmp(dai_link->name, "DPTX_BE") == 0) {
 			if (strcmp(dai_link->codecs->dai_name, "snd-soc-dummy-dai"))
@@ -1140,7 +1328,7 @@ static int mt8188_mt6359_dev_probe(struct platform_device *pdev)
 	}
 
 	priv->private_data = card_data;
-	snd_soc_card_set_drvdata(card, priv);
+	snd_soc_card_set_drvdata(card, soc_card_data);
 
 	ret = devm_snd_soc_register_card(&pdev->dev, card);
 	if (ret)
@@ -1149,6 +1337,10 @@ static int mt8188_mt6359_dev_probe(struct platform_device *pdev)
 err:
 	of_node_put(platform_node);
 	clean_card_reference(card);
+
+err_adsp_node:
+	of_node_put(adsp_node);
+
 	return ret;
 }
 
-- 
2.18.0