ASoC: Intel: Add Cherrytrail & Braswell machine driver cht_bsw_max98090_ti

Add machine driver for two Intel Cherryview-based platforms, Cherrytrail
and Braswell. This machine driver will support max98090 codec as primary
codec. it can also support TI jack detect chip as aux device if platform
supports it.
Signed-off-by: Fang, Yang A <yang.a.fang@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/Kconfig

@@ -121,3 +121,15 @@ config SND_SOC_INTEL_CHT_BSW_RT5645_MACH
 	  This adds support for ASoC machine driver for Intel(R) Cherrytrail & Braswell
 	  platforms with RT5645 audio codec.
 	  If unsure select "N".
+
+config SND_SOC_INTEL_CHT_BSW_MAX98090_TI_MACH
+	tristate "ASoC Audio driver for Intel Cherrytrail & Braswell with MAX98090 & TI codec"
+	depends on X86_INTEL_LPSS
+	select SND_SOC_MAX98090
+	select SND_SOC_TS3A227E
+	select SND_SST_MFLD_PLATFORM
+	select SND_SST_IPC_ACPI
+	help
+      This adds support for ASoC machine driver for Intel(R) Cherrytrail & Braswell
+      platforms with MAX98090 audio codec it also can support TI jack chip as aux device.
+      If unsure select "N".

sound/soc/intel/boards/Makefile

@@ -5,6 +5,7 @@ snd-soc-sst-broadwell-objs := broadwell.o
 snd-soc-sst-bytcr-rt5640-objs := bytcr_rt5640.o
 snd-soc-sst-cht-bsw-rt5672-objs := cht_bsw_rt5672.o
 snd-soc-sst-cht-bsw-rt5645-objs := cht_bsw_rt5645.o
+snd-soc-sst-cht-bsw-max98090_ti-objs := cht_bsw_max98090_ti.o
 
 obj-$(CONFIG_SND_SOC_INTEL_HASWELL_MACH) += snd-soc-sst-haswell.o
 obj-$(CONFIG_SND_SOC_INTEL_BYT_RT5640_MACH) += snd-soc-sst-byt-rt5640-mach.o
@@ -13,3 +14,4 @@ obj-$(CONFIG_SND_SOC_INTEL_BROADWELL_MACH) += snd-soc-sst-broadwell.o
 obj-$(CONFIG_SND_SOC_INTEL_BYTCR_RT5640_MACH) += snd-soc-sst-bytcr-rt5640.o
 obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_RT5672_MACH) += snd-soc-sst-cht-bsw-rt5672.o
 obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_RT5645_MACH) += snd-soc-sst-cht-bsw-rt5645.o
+obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_MAX98090_TI_MACH) += snd-soc-sst-cht-bsw-max98090_ti.o

sound/soc/intel/boards/cht_bsw_max98090_ti.c

+/*
+ *  cht-bsw-max98090.c - ASoc Machine driver for Intel Cherryview-based
+ *  platforms Cherrytrail and Braswell, with max98090 & TI codec.
+ *
+ *  Copyright (C) 2015 Intel Corp
+ *  Author: Fang, Yang A <yang.a.fang@intel.com>
+ *  This file is modified from cht_bsw_rt5645.c
+ *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  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 <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/acpi.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include "../../codecs/max98090.h"
+#include "../atom/sst-atom-controls.h"
+#include "../../codecs/ts3a227e.h"
+
+#define CHT_PLAT_CLK_3_HZ	19200000
+#define CHT_CODEC_DAI	"HiFi"
+
+struct cht_mc_private {
+	struct snd_soc_jack jack;
+	bool ts3a227e_present;
+};
+
+static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card)
+{
+	int i;
+
+	for (i = 0; i < card->num_rtd; i++) {
+		struct snd_soc_pcm_runtime *rtd;
+
+		rtd = card->rtd + i;
+		if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI,
+			     strlen(CHT_CODEC_DAI)))
+			return rtd->codec_dai;
+	}
+	return NULL;
+}
+
+static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+	SND_SOC_DAPM_MIC("Int Mic", NULL),
+	SND_SOC_DAPM_SPK("Ext Spk", NULL),
+};
+
+static const struct snd_soc_dapm_route cht_audio_map[] = {
+	{"IN34", NULL, "Headset Mic"},
+	{"Headset Mic", NULL, "MICBIAS"},
+	{"DMICL", NULL, "Int Mic"},
+	{"Headphone", NULL, "HPL"},
+	{"Headphone", NULL, "HPR"},
+	{"Ext Spk", NULL, "SPKL"},
+	{"Ext Spk", NULL, "SPKR"},
+	{"AIF1 Playback", NULL, "ssp2 Tx"},
+	{"ssp2 Tx", NULL, "codec_out0"},
+	{"ssp2 Tx", NULL, "codec_out1"},
+	{"codec_in0", NULL, "ssp2 Rx" },
+	{"codec_in1", NULL, "ssp2 Rx" },
+	{"ssp2 Rx", NULL, "AIF1 Capture"},
+};
+
+static const struct snd_kcontrol_new cht_mc_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Headphone"),
+	SOC_DAPM_PIN_SWITCH("Headset Mic"),
+	SOC_DAPM_PIN_SWITCH("Int Mic"),
+	SOC_DAPM_PIN_SWITCH("Ext Spk"),
+};
+
+static int cht_aif1_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 = rtd->codec_dai;
+	int ret;
+
+	ret = snd_soc_dai_set_sysclk(codec_dai, M98090_REG_SYSTEM_CLOCK,
+				     CHT_PLAT_CLK_3_HZ, SND_SOC_CLOCK_IN);
+	if (ret < 0) {
+		dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
+{
+	int ret;
+	int jack_type;
+	struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
+	struct snd_soc_jack *jack = &ctx->jack;
+
+	/**
+	* TI supports 4 butons headset detection
+	* KEY_MEDIA
+	* KEY_VOICECOMMAND
+	* KEY_VOLUMEUP
+	* KEY_VOLUMEDOWN
+	*/
+	if (ctx->ts3a227e_present)
+		jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
+					SND_JACK_BTN_0 | SND_JACK_BTN_1 |
+					SND_JACK_BTN_2 | SND_JACK_BTN_3;
+	else
+		jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE;
+
+	ret = snd_soc_card_jack_new(runtime->card, "Headset Jack",
+					jack_type, jack, NULL, 0);
+
+	if (ret) {
+		dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
+			    struct snd_pcm_hw_params *params)
+{
+	struct snd_interval *rate = hw_param_interval(params,
+			SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval *channels = hw_param_interval(params,
+						SNDRV_PCM_HW_PARAM_CHANNELS);
+	int ret = 0;
+	unsigned int fmt = 0;
+
+	ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
+	if (ret < 0) {
+		dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret);
+		return ret;
+	}
+
+	fmt = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF
+				| SND_SOC_DAIFMT_CBS_CFS;
+
+	ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt);
+	if (ret < 0) {
+		dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret);
+		return ret;
+	}
+
+	/* The DSP will covert the FE rate to 48k, stereo, 24bits */
+	rate->min = rate->max = 48000;
+	channels->min = channels->max = 2;
+
+	/* set SSP2 to 24-bit */
+	snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
+				    SNDRV_PCM_HW_PARAM_FIRST_MASK],
+				    SNDRV_PCM_FORMAT_S24_LE);
+	return 0;
+}
+
+static unsigned int rates_48000[] = {
+	48000,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_48000 = {
+	.count = ARRAY_SIZE(rates_48000),
+	.list  = rates_48000,
+};
+
+static int cht_aif1_startup(struct snd_pcm_substream *substream)
+{
+	return snd_pcm_hw_constraint_list(substream->runtime, 0,
+			SNDRV_PCM_HW_PARAM_RATE,
+			&constraints_48000);
+}
+
+static int cht_max98090_headset_init(struct snd_soc_component *component)
+{
+	struct snd_soc_card *card = component->card;
+	struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
+
+	return ts3a227e_enable_jack_detect(component, &ctx->jack);
+}
+
+static struct snd_soc_ops cht_aif1_ops = {
+	.startup = cht_aif1_startup,
+};
+
+static struct snd_soc_ops cht_be_ssp2_ops = {
+	.hw_params = cht_aif1_hw_params,
+};
+
+static struct snd_soc_aux_dev cht_max98090_headset_dev = {
+	.name = "Headset Chip",
+	.init = cht_max98090_headset_init,
+	.codec_name = "i2c-104C227E:00",
+};
+
+static struct snd_soc_dai_link cht_dailink[] = {
+	[MERR_DPCM_AUDIO] = {
+		.name = "Audio Port",
+		.stream_name = "Audio",
+		.cpu_dai_name = "media-cpu-dai",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.codec_name = "snd-soc-dummy",
+		.platform_name = "sst-mfld-platform",
+		.nonatomic = true,
+		.dynamic = 1,
+		.dpcm_playback = 1,
+		.dpcm_capture = 1,
+		.ops = &cht_aif1_ops,
+	},
+	[MERR_DPCM_COMPR] = {
+		.name = "Compressed Port",
+		.stream_name = "Compress",
+		.cpu_dai_name = "compress-cpu-dai",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.codec_name = "snd-soc-dummy",
+		.platform_name = "sst-mfld-platform",
+	},
+	/* back ends */
+	{
+		.name = "SSP2-Codec",
+		.be_id = 1,
+		.cpu_dai_name = "ssp2-port",
+		.platform_name = "sst-mfld-platform",
+		.no_pcm = 1,
+		.codec_dai_name = "HiFi",
+		.codec_name = "i2c-193C9890:00",
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+					| SND_SOC_DAIFMT_CBS_CFS,
+		.init = cht_codec_init,
+		.be_hw_params_fixup = cht_codec_fixup,
+		.dpcm_playback = 1,
+		.dpcm_capture = 1,
+		.ops = &cht_be_ssp2_ops,
+	},
+};
+
+/* SoC card */
+static struct snd_soc_card snd_soc_card_cht = {
+	.name = "chtmax98090",
+	.dai_link = cht_dailink,
+	.num_links = ARRAY_SIZE(cht_dailink),
+	.aux_dev = &cht_max98090_headset_dev,
+	.num_aux_devs = 1,
+	.dapm_widgets = cht_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
+	.dapm_routes = cht_audio_map,
+	.num_dapm_routes = ARRAY_SIZE(cht_audio_map),
+	.controls = cht_mc_controls,
+	.num_controls = ARRAY_SIZE(cht_mc_controls),
+};
+
+static acpi_status snd_acpi_codec_match(acpi_handle handle, u32 level,
+						void *context, void **ret)
+{
+	*(bool *)context = true;
+	return AE_OK;
+}
+
+static int snd_cht_mc_probe(struct platform_device *pdev)
+{
+	int ret_val = 0;
+	bool found = false;
+	struct cht_mc_private *drv;
+
+	drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC);
+	if (!drv)
+		return -ENOMEM;
+
+	if (ACPI_SUCCESS(acpi_get_devices(
+					"104C227E",
+					snd_acpi_codec_match,
+					&found, NULL)) && found) {
+		drv->ts3a227e_present = true;
+	} else {
+		/* no need probe TI jack detection chip */
+		snd_soc_card_cht.aux_dev = NULL;
+		snd_soc_card_cht.num_aux_devs = 0;
+		drv->ts3a227e_present = false;
+	}
+
+	/* register the soc card */
+	snd_soc_card_cht.dev = &pdev->dev;
+	snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
+	ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
+	if (ret_val) {
+		dev_err(&pdev->dev,
+			"snd_soc_register_card failed %d\n", ret_val);
+		return ret_val;
+	}
+	platform_set_drvdata(pdev, &snd_soc_card_cht);
+	return ret_val;
+}
+
+static struct platform_driver snd_cht_mc_driver = {
+	.driver = {
+		.name = "cht-bsw-max98090",
+	},
+	.probe = snd_cht_mc_probe,
+};
+
+module_platform_driver(snd_cht_mc_driver)
+
+MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver");
+MODULE_AUTHOR("Fang, Yang A <yang.a.fang@intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:cht-bsw-max98090");