ASoC: Intel: sof_sdw: Add Volteer support with RT5682 SNDW helper function

Add support for Google Volteer device. As per new unified soundwire machine
driver, add rt5682-sdw helper function, which configures codec to Link0.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Naveen Manohar <naveen.m@intel.com>
Link: https://lore.kernel.org/r/20200325220746.29601-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/boards/Kconfig

@@ -538,6 +538,7 @@ config SND_SOC_INTEL_SOUNDWIRE_SOF_MACH
 	select SND_SOC_RT1308_SDW
 	select SND_SOC_RT1308
 	select SND_SOC_RT715_SDW
+	select SND_SOC_RT5682_SDW
 	select SND_SOC_DMIC
         help
 	  Add support for Intel SoundWire-based platforms connected to

sound/soc/intel/boards/Makefile

@@ -34,6 +34,7 @@ snd-soc-sof_da7219_max98373-objs := sof_da7219_max98373.o hda_dsp_common.o
 snd-soc-sof-sdw-objs += sof_sdw.o				\
 			sof_sdw_rt711.o sof_sdw_rt700.o		\
 			sof_sdw_rt1308.o sof_sdw_rt715.o	\
+			sof_sdw_rt5682.o			\
 			sof_sdw_dmic.o sof_sdw_hdmi.o hda_dsp_common.o
 obj-$(CONFIG_SND_SOC_INTEL_SOF_RT5682_MACH) += snd-soc-sof_rt5682.o
 obj-$(CONFIG_SND_SOC_INTEL_HASWELL_MACH) += snd-soc-sst-haswell.o

sound/soc/intel/boards/sof_sdw.c

@@ -91,6 +91,14 @@ static const struct dmi_system_id sof_sdw_quirk_table[] = {
 		},
 		.driver_data = (void *)SOF_SDW_PCH_DMIC,
 	},
+	{
+		.callback = sof_sdw_quirk_cb,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Google"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Volteer"),
+		},
+		.driver_data = (void *)(SOF_SDW_TGL_HDMI | SOF_SDW_PCH_DMIC),
+	},
 
 	{}
 };
@@ -128,6 +136,10 @@ static struct snd_soc_codec_conf codec_conf[] = {
 		.dlc = COMP_CODEC_CONF("sdw:3:25d:715:0"),
 		.name_prefix = "rt715",
 	},
+	{
+		.dlc = COMP_CODEC_CONF("sdw:0:25d:5682:0"),
+		.name_prefix = "rt5682",
+	},
 };
 
 static struct snd_soc_dai_link_component dmic_component[] = {
@@ -187,6 +199,12 @@ static struct sof_sdw_codec_info codec_info_list[] = {
 		.dai_name = "rt715-aif2",
 		.init = sof_sdw_rt715_init,
 	},
+	{
+		.id = 0x5682,
+		.direction = {true, true},
+		.dai_name = "rt5682-sdw",
+		.init = sof_sdw_rt5682_init,
+	},
 };
 
 static inline int find_codec_info_part(unsigned int part_id)

sound/soc/intel/boards/sof_sdw_common.h

@@ -105,4 +105,10 @@ int sof_sdw_rt715_init(const struct snd_soc_acpi_link_adr *link,
 		       struct sof_sdw_codec_info *info,
 		       bool playback);
 
+/* RT5682 support */
+int sof_sdw_rt5682_init(const struct snd_soc_acpi_link_adr *link,
+			struct snd_soc_dai_link *dai_links,
+			struct sof_sdw_codec_info *info,
+			bool playback);
+
 #endif

sound/soc/intel/boards/sof_sdw_rt5682.c

@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Intel Corporation
+
+/*
+ *  sof_sdw_rt5682 - Helpers to handle RT5682 from generic machine driver
+ */
+
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/input.h>
+#include <linux/soundwire/sdw.h>
+#include <linux/soundwire/sdw_type.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include <sound/jack.h>
+#include "sof_sdw_common.h"
+
+static const struct snd_soc_dapm_widget rt5682_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route rt5682_map[] = {
+	/*Headphones*/
+	{ "Headphone", NULL, "rt5682 HPOL" },
+	{ "Headphone", NULL, "rt5682 HPOR" },
+	{ "rt5682 IN1P", NULL, "Headset Mic" },
+};
+
+static const struct snd_kcontrol_new rt5682_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Headphone"),
+	SOC_DAPM_PIN_SWITCH("Headset Mic"),
+};
+
+static struct snd_soc_jack_pin rt5682_jack_pins[] = {
+	{
+		.pin    = "Headphone",
+		.mask   = SND_JACK_HEADPHONE,
+	},
+	{
+		.pin    = "Headset Mic",
+		.mask   = SND_JACK_MICROPHONE,
+	},
+};
+
+static int rt5682_rtd_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_card *card = rtd->card;
+	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
+	struct snd_soc_component *component = rtd->codec_dai->component;
+	struct snd_soc_jack *jack;
+	int ret;
+
+	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
+					  "%s hs:rt5682",
+					  card->components);
+	if (!card->components)
+		return -ENOMEM;
+
+	ret = snd_soc_add_card_controls(card, rt5682_controls,
+					ARRAY_SIZE(rt5682_controls));
+	if (ret) {
+		dev_err(card->dev, "rt5682 control addition failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_dapm_new_controls(&card->dapm, rt5682_widgets,
+					ARRAY_SIZE(rt5682_widgets));
+	if (ret) {
+		dev_err(card->dev, "rt5682 widgets addition failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_dapm_add_routes(&card->dapm, rt5682_map,
+				      ARRAY_SIZE(rt5682_map));
+
+	if (ret) {
+		dev_err(card->dev, "rt5682 map addition failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
+				    SND_JACK_HEADSET | SND_JACK_BTN_0 |
+				    SND_JACK_BTN_1 | SND_JACK_BTN_2 |
+				    SND_JACK_BTN_3,
+				    &ctx->sdw_headset,
+				    rt5682_jack_pins,
+				    ARRAY_SIZE(rt5682_jack_pins));
+	if (ret) {
+		dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
+			ret);
+		return ret;
+	}
+
+	jack = &ctx->sdw_headset;
+
+	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
+	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
+	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
+	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
+
+	ret = snd_soc_component_set_jack(component, jack, NULL);
+
+	if (ret)
+		dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
+			ret);
+
+	return ret;
+}
+
+int sof_sdw_rt5682_init(const struct snd_soc_acpi_link_adr *link,
+			struct snd_soc_dai_link *dai_links,
+			struct sof_sdw_codec_info *info,
+			bool playback)
+{
+	/*
+	 * headset should be initialized once.
+	 * Do it with dai link for playback.
+	 */
+	if (!playback)
+		return 0;
+
+	dai_links->init = rt5682_rtd_init;
+
+	return 0;
+}