From 5a62f24d17554da9cf1c292aa31329237bd982f1 Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Date: Fri, 9 Dec 2016 07:49:28 -0600
Subject: [PATCH] ASoC: Intel: Add machine driver for Cherrytrail-CX2072X
References: bsc#1068546
Patch-mainline: Submitted, alsa-devel ML
Machine driver needed for Conexant CX2072X codec.
A couple of fixmes related to PLL
Jack detection needs to be re-added
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/soc/intel/Kconfig | 13 +
sound/soc/intel/boards/Makefile | 2
sound/soc/intel/boards/cht_cx2072x.c | 273 +++++++++++++++++++++++++++++++++++
3 files changed, 288 insertions(+)
create mode 100644 sound/soc/intel/boards/cht_cx2072x.c
--- a/sound/soc/intel/Kconfig
+++ b/sound/soc/intel/Kconfig
@@ -164,6 +164,19 @@ config SND_SOC_INTEL_BYTCR_RT5651_MACH
Say Y if you have such a device.
If unsure select "N".
+config SND_SOC_INTEL_CHT_CX2072X_MACH
+ tristate "ASoC Audio driver for Intel Baytrail and Cherrytrail with CX2072X codec"
+ depends on X86_INTEL_LPSS && I2C && ACPI
+ select SND_SOC_CX2072X
+ select SND_SST_ATOM_HIFI2_PLATFORM
+ select SND_SST_IPC_ACPI
+ select SND_SOC_INTEL_SST_MATCH if ACPI
+ help
+ This adds support for ASoC machine driver for Intel(R) Cherrytrail & Braswell
+ platforms with Conexant CX2072X audio codec.
+ Say Y if you have such a device.
+ If unsure select "N".
+
config SND_SOC_INTEL_CHT_BSW_RT5672_MACH
tristate "ASoC Audio driver for Intel Cherrytrail & Braswell with RT5672 codec"
depends on X86_INTEL_LPSS && I2C && ACPI
--- a/sound/soc/intel/boards/Makefile
+++ b/sound/soc/intel/boards/Makefile
@@ -7,6 +7,7 @@ snd-soc-sst-bxt-da7219_max98357a-objs :=
snd-soc-sst-bxt-rt298-objs := bxt_rt298.o
snd-soc-sst-bytcr-rt5640-objs := bytcr_rt5640.o
snd-soc-sst-bytcr-rt5651-objs := bytcr_rt5651.o
+snd-soc-sst-cht-cx2072x-objs := cht_cx2072x.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
@@ -25,6 +26,7 @@ obj-$(CONFIG_SND_SOC_INTEL_BROADWELL_MAC
obj-$(CONFIG_SND_SOC_INTEL_BDW_RT5677_MACH) += snd-soc-sst-bdw-rt5677-mach.o
obj-$(CONFIG_SND_SOC_INTEL_BYTCR_RT5640_MACH) += snd-soc-sst-bytcr-rt5640.o
obj-$(CONFIG_SND_SOC_INTEL_BYTCR_RT5651_MACH) += snd-soc-sst-bytcr-rt5651.o
+obj-$(CONFIG_SND_SOC_INTEL_CHT_CX2072X_MACH) += snd-soc-sst-cht-cx2072x.o
obj-$(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
--- /dev/null
+++ b/sound/soc/intel/boards/cht_cx2072x.c
@@ -0,0 +1,273 @@
+/*
+ * cht_cx207x.c - ASoc DPCM Machine driver for CherryTrail w/ CX2072x
+ *
+ * Copyright (C) 2016 Intel Corp
+ * Author: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * 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/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <asm/platform_sst_audio.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include "../../codecs/cx2072x.h"
+#include "../atom/sst-atom-controls.h"
+#include "../common/sst-acpi.h"
+
+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[] = {
+ /* External Speakers: HFL, HFR */
+ {"Headphone", NULL, "PORTA"},
+ {"Ext Spk", NULL, "PORTG"},
+ {"PORTC", NULL, "Int Mic"},
+ {"PORTD", NULL, "Headset Mic"},
+
+ {"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, "Capture"},
+ {"ssp0 Tx", NULL, "modem_out"},
+ {"modem_in", NULL, "ssp0 Rx"},
+};
+
+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)
+{
+ return 0;
+}
+
+static int cht_codec_init(struct snd_soc_pcm_runtime *rtd)
+{
+ int ret;
+ struct snd_soc_card *card = rtd->card;
+
+ card->dapm.idle_bias_off = true;
+
+ /* set the default PLL rate, the clock is handled by the codec driver */
+ ret = snd_soc_dai_set_sysclk(rtd->codec_dai, CX2072X_MCLK_EXTERNAL_PLL,
+ 19200000, SND_SOC_CLOCK_IN);
+ if (ret) {
+ dev_err(rtd->dev, "Could not set sysclk\n");
+ return ret;
+ }
+
+ return ret;
+}
+
+static const struct snd_soc_pcm_stream cht_dai_params = {
+ .formats = SNDRV_PCM_FMTBIT_S24_LE,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ .channels_min = 2,
+ .channels_max = 2,
+};
+
+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;
+
+ /* 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 */
+ params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
+
+ /*
+ * Default mode for SSP configuration is TDM 4 slot, override config
+ * with explicit setting to I2S 2ch 24-bit. The word length is set with
+ * dai_set_tdm_slot() since there is no other API exposed
+ */
+ ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
+ SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS);
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
+ return ret;
+ }
+
+ snd_soc_dai_set_bclk_ratio(rtd->codec_dai, 50);
+ return 0;
+}
+
+static const struct snd_soc_pcm_stream cht_cx_dai_params = {
+ .formats = SNDRV_PCM_FMTBIT_S24_LE,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ .channels_min = 2,
+ .channels_max = 2,
+};
+
+static int cht_aif1_startup(struct snd_pcm_substream *substream)
+{
+ return snd_pcm_hw_constraint_single(substream->runtime,
+ SNDRV_PCM_HW_PARAM_RATE, 48000);
+}
+
+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_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_DEEP_BUFFER] = {
+ .name = "Deep-Buffer Audio Port",
+ .stream_name = "Deep-Buffer Audio",
+ .cpu_dai_name = "deepbuffer-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,
+ .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",
+ },
+ /* CODEC<->CODEC link */
+ /* back ends */
+ {
+ .name = "SSP2-Codec",
+ .id = 1,
+ .cpu_dai_name = "ssp2-port",
+ .platform_name = "sst-mfld-platform",
+ .no_pcm = 1,
+ .codec_dai_name = "cx2072x-hifi",
+ .codec_name = "i2c-14F10720:00",
+ .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,
+ .nonatomic = true,
+ .dpcm_playback = 1,
+ .dpcm_capture = 1,
+ .ops = &cht_be_ssp2_ops,
+ },
+};
+
+/* SoC card */
+static struct snd_soc_card chtcx2072x_card = {
+ .name = "chtcx2072x",
+ .dai_link = cht_dailink,
+ .num_links = ARRAY_SIZE(cht_dailink),
+ .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 char cht_cx_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */
+
+static int snd_cht_mc_probe(struct platform_device *pdev)
+{
+ int i;
+ int dai_index;
+ struct sst_acpi_mach *mach;
+ const char *i2c_name = NULL;
+
+ /* register the soc card */
+ chtcx2072x_card.dev = &pdev->dev;
+ mach = chtcx2072x_card.dev->platform_data;
+
+ /* fix index of codec dai */
+ dai_index = MERR_DPCM_COMPR + 1;
+ for (i = 0; i < ARRAY_SIZE(cht_dailink); i++) {
+ if (!strcmp(cht_dailink[i].codec_name, "i2c-14F10720:00")) {
+ dai_index = i;
+ break;
+ }
+ }
+
+ /* fixup codec name based on HID */
+ i2c_name = sst_acpi_find_name_from_hid(mach->id);
+ if (i2c_name != NULL) {
+ snprintf(cht_cx_codec_name, sizeof(cht_cx_codec_name),
+ "%s%s", "i2c-", i2c_name);
+ cht_dailink[dai_index].codec_name = cht_cx_codec_name;
+ }
+
+ return devm_snd_soc_register_card(&pdev->dev, &chtcx2072x_card);
+}
+
+static struct platform_driver snd_cht_mc_driver = {
+ .driver = {
+ .name = "cht-cx2072x",
+ },
+ .probe = snd_cht_mc_probe,
+};
+module_platform_driver(snd_cht_mc_driver);
+
+MODULE_DESCRIPTION("ASoC Intel(R) Cherrytrail Machine driver");
+MODULE_AUTHOR("Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:cht-cx2072x");