ASoC: add mt6797-mt6351 driver and config option

Signed-off-by: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/mediatek/Kconfig

@@ -32,6 +32,26 @@ config SND_SOC_MT2701_WM8960
 	  Select Y if you have such device.
 	  If unsure select "N".
 
+config SND_SOC_MT6797
+	tristate "ASoC support for Mediatek MT6797 chip"
+	depends on ARCH_MEDIATEK
+	select SND_SOC_MEDIATEK
+	help
+	  This adds ASoC driver for Mediatek MT6797 boards
+	  that can be used with other codecs.
+	  Select Y if you have such device.
+	  If unsure select "N".
+
+config SND_SOC_MT6797_MT6351
+	tristate "ASoc Audio driver for MT6797 with MT6351 codec"
+	depends on SND_SOC_MT6797 && MTK_PMIC_WRAP
+	select SND_SOC_MT6351
+	help
+	  This adds ASoC driver for Mediatek MT6797 boards
+	  with the MT6351 codecs.
+	  Select Y if you have such device.
+	  If unsure select "N".
+
 config SND_SOC_MT8173
 	tristate "ASoC support for Mediatek MT8173 chip"
 	depends on ARCH_MEDIATEK

sound/soc/mediatek/Makefile

@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_SND_SOC_MEDIATEK) += common/
 obj-$(CONFIG_SND_SOC_MT2701) += mt2701/
+obj-$(CONFIG_SND_SOC_MT6797) += mt6797/
 obj-$(CONFIG_SND_SOC_MT8173) += mt8173/

sound/soc/mediatek/mt6797/Makefile

@@ -0,0 +1,19 @@
+#
+# Copyright (C) 2018 MediaTek Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+
+# platform driver
+snd-soc-mt6797-afe-objs := mt6797-afe-pcm.o mt6797-afe-clk.o
+obj-$(CONFIG_SND_SOC_MT6797) += snd-soc-mt6797-afe.o
+
+# machine driver
+obj-$(CONFIG_SND_SOC_MT6797_MT6351) += mt6797-mt6351.o

sound/soc/mediatek/mt6797/mt6797-mt6351.c

@@ -0,0 +1,186 @@
+/*
+ * mt6797-mt6351.c  --  MT6797 MT6351 ALSA SoC machine driver
+ *
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Ryder Lee <ryder.lee@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <sound/soc.h>
+
+#include "mt6797-afe-common.h"
+
+static struct snd_soc_dai_link mt6797_mt6351_dai_links[] = {
+	/* FE */
+	{
+		.name = "Playback_1",
+		.stream_name = "Playback_1",
+		.cpu_dai_name = "DL1",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.trigger = {SND_SOC_DPCM_TRIGGER_PRE,
+			    SND_SOC_DPCM_TRIGGER_PRE},
+		.dynamic = 1,
+		.dpcm_playback = 1,
+	},
+	{
+		.name = "Playback_2",
+		.stream_name = "Playback_2",
+		.cpu_dai_name = "DL2",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.trigger = {SND_SOC_DPCM_TRIGGER_PRE,
+			    SND_SOC_DPCM_TRIGGER_PRE},
+		.dynamic = 1,
+		.dpcm_playback = 1,
+	},
+	{
+		.name = "Playback_3",
+		.stream_name = "Playback_3",
+		.cpu_dai_name = "DL3",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.trigger = {SND_SOC_DPCM_TRIGGER_PRE,
+			    SND_SOC_DPCM_TRIGGER_PRE},
+		.dynamic = 1,
+		.dpcm_playback = 1,
+	},
+	{
+		.name = "Capture_1",
+		.stream_name = "Capture_1",
+		.cpu_dai_name = "UL1",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.trigger = {SND_SOC_DPCM_TRIGGER_PRE,
+			    SND_SOC_DPCM_TRIGGER_PRE},
+		.dynamic = 1,
+		.dpcm_capture = 1,
+	},
+	{
+		.name = "Capture_2",
+		.stream_name = "Capture_2",
+		.cpu_dai_name = "UL2",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.trigger = {SND_SOC_DPCM_TRIGGER_PRE,
+			    SND_SOC_DPCM_TRIGGER_PRE},
+		.dynamic = 1,
+		.dpcm_capture = 1,
+	},
+	{
+		.name = "Capture_3",
+		.stream_name = "Capture_3",
+		.cpu_dai_name = "UL3",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.trigger = {SND_SOC_DPCM_TRIGGER_PRE,
+			    SND_SOC_DPCM_TRIGGER_PRE},
+		.dynamic = 1,
+		.dpcm_capture = 1,
+	},
+	{
+		.name = "Capture_Mono_1",
+		.stream_name = "Capture_Mono_1",
+		.cpu_dai_name = "UL_MONO_1",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.trigger = {SND_SOC_DPCM_TRIGGER_PRE,
+			    SND_SOC_DPCM_TRIGGER_PRE},
+		.dynamic = 1,
+		.dpcm_capture = 1,
+	},
+	/* BE */
+	{
+		.name = "Primary Codec",
+		.cpu_dai_name = "ADDA",
+		.codec_dai_name = "mt6351-snd-codec-aif1",
+		.no_pcm = 1,
+		.dpcm_playback = 1,
+		.dpcm_capture = 1,
+		.ignore_suspend = 1,
+	},
+};
+
+static struct snd_soc_card mt6797_mt6351_card = {
+	.name = "mt6797-mt6351",
+	.owner = THIS_MODULE,
+	.dai_link = mt6797_mt6351_dai_links,
+	.num_links = ARRAY_SIZE(mt6797_mt6351_dai_links),
+};
+
+static int mt6797_mt6351_dev_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = &mt6797_mt6351_card;
+	struct device_node *platform_node, *codec_node;
+	int ret, i;
+
+	card->dev = &pdev->dev;
+
+	platform_node = of_parse_phandle(pdev->dev.of_node,
+					 "mediatek,platform", 0);
+	if (!platform_node) {
+		dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
+		return -EINVAL;
+	}
+	for (i = 0; i < card->num_links; i++) {
+		if (mt6797_mt6351_dai_links[i].platform_name)
+			continue;
+		mt6797_mt6351_dai_links[i].platform_of_node = platform_node;
+	}
+
+	codec_node = of_parse_phandle(pdev->dev.of_node,
+				      "mediatek,audio-codec", 0);
+	if (!codec_node) {
+		dev_err(&pdev->dev,
+			"Property 'audio-codec' missing or invalid\n");
+		return -EINVAL;
+	}
+	for (i = 0; i < card->num_links; i++) {
+		if (mt6797_mt6351_dai_links[i].codec_name)
+			continue;
+		mt6797_mt6351_dai_links[i].codec_of_node = codec_node;
+	}
+
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+	if (ret)
+		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
+			__func__, ret);
+
+	return ret;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id mt6797_mt6351_dt_match[] = {
+	{.compatible = "mediatek,mt6797-mt6351-sound",},
+	{}
+};
+#endif
+
+static struct platform_driver mt6797_mt6351_driver = {
+	.driver = {
+		.name = "mt6797-mt6351",
+		.owner = THIS_MODULE,
+#ifdef CONFIG_OF
+		.of_match_table = mt6797_mt6351_dt_match,
+#endif
+	},
+	.probe = mt6797_mt6351_dev_probe,
+};
+
+module_platform_driver(mt6797_mt6351_driver);
+
+/* Module information */
+MODULE_DESCRIPTION("MT6797 MT6351 ALSA SoC machine driver");
+MODULE_AUTHOR("KaiChieh Chuang <kaichieh.chuang@mediatek.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("mt6797 mt6351 soc card");
+