ASoC: Intel: sof_rt5682: Add support for tgl-max98373-rt5682

This patch does the below:
1. Adds the driver data and updates quirk info for TGL
        with Max98373 speaker amp and ALC5682 headset codec.
2. Added max98373 speaker related code to common file for re-use.
Signed-off-by: Jairaj Arava <jairaj.arava@intel.com>
Signed-off-by: Sathyanarayana Nujella <sathyanarayana.nujella@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200325213245.28247-4-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/boards/Kconfig

@@ -450,6 +450,7 @@ config SND_SOC_INTEL_SOF_RT5682_MACH
 	depends on (SND_SOC_SOF_HDA_LINK && (MFD_INTEL_LPSS || COMPILE_TEST)) ||\
 		   (SND_SOC_SOF_BAYTRAIL && (X86_INTEL_LPSS || COMPILE_TEST))
 	depends on SND_HDA_CODEC_HDMI
+	select SND_SOC_MAX98373
 	select SND_SOC_RT1015
 	select SND_SOC_RT5682
 	select SND_SOC_DMIC

sound/soc/intel/boards/Makefile

@@ -19,7 +19,7 @@ snd-soc-sst-byt-cht-cx2072x-objs := bytcht_cx2072x.o
 snd-soc-sst-byt-cht-da7213-objs := bytcht_da7213.o
 snd-soc-sst-byt-cht-es8316-objs := bytcht_es8316.o
 snd-soc-sst-byt-cht-nocodec-objs := bytcht_nocodec.o
-snd-soc-sof_rt5682-objs := sof_rt5682.o hda_dsp_common.o
+snd-soc-sof_rt5682-objs := sof_rt5682.o hda_dsp_common.o sof_maxim_common.o
 snd-soc-cml_rt1011_rt5682-objs := cml_rt1011_rt5682.o hda_dsp_common.o
 snd-soc-kbl_da7219_max98357a-objs := kbl_da7219_max98357a.o
 snd-soc-kbl_da7219_max98927-objs := kbl_da7219_max98927.o

sound/soc/intel/boards/sof_maxim_common.c

+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright(c) 2020 Intel Corporation. All rights reserved.
+#include <linux/string.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <sound/soc-dapm.h>
+#include <uapi/sound/asound.h>
+#include "sof_maxim_common.h"
+
+static const struct snd_soc_dapm_route max_98373_dapm_routes[] = {
+	/* speaker */
+	{ "Left Spk", NULL, "Left BE_OUT" },
+	{ "Right Spk", NULL, "Right BE_OUT" },
+};
+
+static struct snd_soc_codec_conf max_98373_codec_conf[] = {
+	{
+		.dlc = COMP_CODEC_CONF(MAX_98373_DEV0_NAME),
+		.name_prefix = "Right",
+	},
+	{
+		.dlc = COMP_CODEC_CONF(MAX_98373_DEV1_NAME),
+		.name_prefix = "Left",
+	},
+};
+
+struct snd_soc_dai_link_component max_98373_components[] = {
+	{  /* For Left */
+		.name = MAX_98373_DEV0_NAME,
+		.dai_name = MAX_98373_CODEC_DAI,
+	},
+	{  /* For Right */
+		.name = MAX_98373_DEV1_NAME,
+		.dai_name = MAX_98373_CODEC_DAI,
+	},
+};
+
+static int max98373_hw_params(struct snd_pcm_substream *substream,
+			      struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai;
+	int j;
+
+	for_each_rtd_codec_dais(rtd, j, codec_dai) {
+		if (!strcmp(codec_dai->component->name, MAX_98373_DEV0_NAME)) {
+			/* DEV0 tdm slot configuration */
+			snd_soc_dai_set_tdm_slot(codec_dai, 0x30, 3, 8, 16);
+		}
+		if (!strcmp(codec_dai->component->name, MAX_98373_DEV1_NAME)) {
+			/* DEV1 tdm slot configuration */
+			snd_soc_dai_set_tdm_slot(codec_dai, 0xC0, 3, 8, 16);
+		}
+	}
+	return 0;
+}
+
+struct snd_soc_ops max_98373_ops = {
+	.hw_params = max98373_hw_params,
+};
+
+int max98373_spk_codec_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_card *card = rtd->card;
+	int ret;
+
+	ret = snd_soc_dapm_add_routes(&card->dapm, max_98373_dapm_routes,
+				      ARRAY_SIZE(max_98373_dapm_routes));
+	if (ret)
+		dev_err(rtd->dev, "Speaker map addition failed: %d\n", ret);
+	return ret;
+}
+
+void sof_max98373_codec_conf(struct snd_soc_card *card)
+{
+	card->codec_conf = max_98373_codec_conf;
+	card->num_configs = ARRAY_SIZE(max_98373_codec_conf);
+}

sound/soc/intel/boards/sof_maxim_common.h

+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright(c) 2020 Intel Corporation.
+ */
+
+/*
+ * This file defines data structures used in Machine Driver for Intel
+ * platforms with Maxim Codecs.
+ */
+#ifndef __SOF_MAXIM_COMMON_H
+#define __SOF_MAXIM_COMMON_H
+
+#include <sound/soc.h>
+
+#define MAX_98373_CODEC_DAI	"max98373-aif1"
+#define MAX_98373_DEV0_NAME	"i2c-MX98373:00"
+#define MAX_98373_DEV1_NAME	"i2c-MX98373:01"
+
+extern struct snd_soc_dai_link_component max_98373_components[2];
+extern struct snd_soc_ops max_98373_ops;
+
+int max98373_spk_codec_init(struct snd_soc_pcm_runtime *rtd);
+void sof_max98373_codec_conf(struct snd_soc_card *card);
+#endif /* __SOF_MAXIM_COMMON_H */

sound/soc/intel/boards/sof_rt5682.c

@@ -23,6 +23,7 @@
 #include "../../codecs/hdac_hdmi.h"
 #include "../common/soc-intel-quirks.h"
 #include "hda_dsp_common.h"
+#include "sof_maxim_common.h"
 
 #define NAME_SIZE 32
 
@@ -41,6 +42,7 @@
 #define SOF_RT5682_NUM_HDMIDEV(quirk)	\
 	((quirk << SOF_RT5682_NUM_HDMIDEV_SHIFT) & SOF_RT5682_NUM_HDMIDEV_MASK)
 #define SOF_RT1015_SPEAKER_AMP_PRESENT		BIT(13)
+#define SOF_MAX98373_SPEAKER_AMP_PRESENT	BIT(14)
 
 /* Default: MCLK on, MCLK 19.2M, SSP0  */
 static unsigned long sof_rt5682_quirk = SOF_RT5682_MCLK_EN |
@@ -637,6 +639,12 @@ static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,
 			links[id].num_codecs = ARRAY_SIZE(rt1015_components);
 			links[id].init = speaker_codec_init_lr;
 			links[id].ops = &sof_rt1015_ops;
+		} else if (sof_rt5682_quirk &
+				SOF_MAX98373_SPEAKER_AMP_PRESENT) {
+			links[id].codecs = max_98373_components;
+			links[id].num_codecs = ARRAY_SIZE(max_98373_components);
+			links[id].init = max98373_spk_codec_init;
+			links[id].ops = &max_98373_ops;
 		} else {
 			links[id].codecs = max98357a_component;
 			links[id].num_codecs = ARRAY_SIZE(max98357a_component);
@@ -745,6 +753,9 @@ static int sof_audio_probe(struct platform_device *pdev)
 	if (sof_rt5682_quirk & SOF_SPEAKER_AMP_PRESENT)
 		sof_audio_card_rt5682.num_links++;
 
+	if (sof_rt5682_quirk & SOF_MAX98373_SPEAKER_AMP_PRESENT)
+		sof_max98373_codec_conf(&sof_audio_card_rt5682);
+
 	dai_links = sof_card_dai_links_create(&pdev->dev, ssp_codec, ssp_amp,
 					      dmic_be_num, hdmi_num);
 	if (!dai_links)
@@ -811,6 +822,15 @@ static const struct platform_device_id board_ids[] = {
 					SOF_RT1015_SPEAKER_AMP_PRESENT |
 					SOF_RT5682_SSP_AMP(1)),
 	},
+	{
+		.name = "tgl_max98373_rt5682",
+		.driver_data = (kernel_ulong_t)(SOF_RT5682_MCLK_EN |
+					SOF_RT5682_SSP_CODEC(0) |
+					SOF_SPEAKER_AMP_PRESENT |
+					SOF_MAX98373_SPEAKER_AMP_PRESENT |
+					SOF_RT5682_SSP_AMP(1) |
+					SOF_RT5682_NUM_HDMIDEV(4)),
+	},
 	{ }
 };
 
@@ -833,3 +853,4 @@ MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:sof_rt5682");
 MODULE_ALIAS("platform:tgl_max98357a_rt5682");
 MODULE_ALIAS("platform:jsl_rt5682_rt1015");
+MODULE_ALIAS("platform:tgl_max98373_rt5682");