ASoC: Intel: Add Broxton-P machine driver

This patch adds the Broxton-P machine driver for Intel Broxton-P
reference boards. This machine uses the RT298 codec

Signed-off-by: Ramesh Babu <ramesh.babu@intel.com>
Signed-off-by: Senthilnathan Veppur <senthilnathanx.veppur@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

3 files changed, 370 insertions, 0 deletions

diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
index 399afa118822..91c15abb625e 100644
--- a/sound/soc/intel/Kconfig
+++ b/sound/soc/intel/Kconfig
@@ -58,6 +58,21 @@ config SND_SOC_INTEL_HASWELL_MACH
           Say Y if you have such a device
           If unsure select "N".
 
+config SND_SOC_INTEL_BXT_RT298_MACH
+        tristate "ASoC Audio driver for Broxton with RT298 I2S mode"
+        depends on X86 && ACPI && I2C
+        select SND_SOC_INTEL_SST
+        select SND_SOC_INTEL_SKYLAKE
+        select SND_SOC_RT298
+        select SND_SOC_DMIC
+        select SND_SOC_HDAC_HDMI
+        select SND_HDA_DSP_LOADER
+        help
+           This adds support for ASoC machine driver for Broxton platforms
+           with RT286 I2S audio codec.
+           Say Y if you have such a device
+           If unsure select "N".
+
 config SND_SOC_INTEL_BYT_RT5640_MACH
         tristate "ASoC Audio driver for Intel Baytrail with RT5640 codec"
         depends on X86_INTEL_LPSS && I2C
diff --git a/sound/soc/intel/boards/Makefile b/sound/soc/intel/boards/Makefile
index 3310c0f9c356..a8506774f510 100644
--- a/sound/soc/intel/boards/Makefile
+++ b/sound/soc/intel/boards/Makefile
@@ -2,6 +2,7 @@ snd-soc-sst-haswell-objs := haswell.o
 snd-soc-sst-byt-rt5640-mach-objs := byt-rt5640.o
 snd-soc-sst-byt-max98090-mach-objs := byt-max98090.o
 snd-soc-sst-broadwell-objs := broadwell.o
+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-bsw-rt5672-objs := cht_bsw_rt5672.o
@@ -14,6 +15,7 @@ snd-soc-skl_nau88l25_ssm4567-objs := skl_nau88l25_ssm4567.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
 obj-$(CONFIG_SND_SOC_INTEL_BYT_MAX98090_MACH) += snd-soc-sst-byt-max98090-mach.o
+obj-$(CONFIG_SND_SOC_INTEL_BXT_RT298_MACH) += snd-soc-sst-bxt-rt298.o
 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_BYTCR_RT5651_MACH) += snd-soc-sst-bytcr-rt5651.o
diff --git a/sound/soc/intel/boards/bxt_rt298.c b/sound/soc/intel/boards/bxt_rt298.c
new file mode 100644
index 000000000000..1b845ff779f3
--- /dev/null
+++ b/sound/soc/intel/boards/bxt_rt298.c
@@ -0,0 +1,353 @@
+/*
+ * Intel Broxton-P I2S Machine Driver
+ *
+ * Copyright (C) 2014-2016, Intel Corporation. All rights reserved.
+ *
+ * Modified from:
+ *   Intel Skylake I2S Machine driver
+ *
+ * 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.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include <sound/pcm_params.h>
+#include "../../codecs/hdac_hdmi.h"
+#include "../../codecs/rt298.h"
+
+static struct snd_soc_jack broxton_headset;
+/* Headset jack detection DAPM pins */
+
+enum {
+        BXT_DPCM_AUDIO_PB = 0,
+        BXT_DPCM_AUDIO_CP,
+        BXT_DPCM_AUDIO_REF_CP,
+        BXT_DPCM_AUDIO_HDMI1_PB,
+        BXT_DPCM_AUDIO_HDMI2_PB,
+        BXT_DPCM_AUDIO_HDMI3_PB,
+};
+
+static struct snd_soc_jack_pin broxton_headset_pins[] = {
+        {
+                .pin = "Mic Jack",
+                .mask = SND_JACK_MICROPHONE,
+        },
+        {
+                .pin = "Headphone Jack",
+                .mask = SND_JACK_HEADPHONE,
+        },
+};
+
+static const struct snd_kcontrol_new broxton_controls[] = {
+        SOC_DAPM_PIN_SWITCH("Speaker"),
+        SOC_DAPM_PIN_SWITCH("Headphone Jack"),
+        SOC_DAPM_PIN_SWITCH("Mic Jack"),
+};
+
+static const struct snd_soc_dapm_widget broxton_widgets[] = {
+        SND_SOC_DAPM_HP("Headphone Jack", NULL),
+        SND_SOC_DAPM_SPK("Speaker", NULL),
+        SND_SOC_DAPM_MIC("Mic Jack", NULL),
+        SND_SOC_DAPM_MIC("DMIC2", NULL),
+        SND_SOC_DAPM_MIC("SoC DMIC", NULL),
+        SND_SOC_DAPM_SPK("HDMI1", NULL),
+        SND_SOC_DAPM_SPK("HDMI2", NULL),
+        SND_SOC_DAPM_SPK("HDMI3", NULL),
+};
+
+static const struct snd_soc_dapm_route broxton_rt298_map[] = {
+        /* speaker */
+        {"Speaker", NULL, "SPOR"},
+        {"Speaker", NULL, "SPOL"},
+
+        /* HP jack connectors - unknown if we have jack detect */
+        {"Headphone Jack", NULL, "HPO Pin"},
+
+        /* other jacks */
+        {"MIC1", NULL, "Mic Jack"},
+
+        /* digital mics */
+        {"DMIC1 Pin", NULL, "DMIC2"},
+        {"DMic", NULL, "SoC DMIC"},
+
+        {"HDMI1", NULL, "hif5 Output"},
+        {"HDMI2", NULL, "hif6 Output"},
+        {"HDMI3", NULL, "hif7 Output"},
+
+        /* CODEC BE connections */
+        { "AIF1 Playback", NULL, "ssp5 Tx"},
+        { "ssp5 Tx", NULL, "codec0_out"},
+
+        { "codec0_in", NULL, "ssp5 Rx" },
+        { "ssp5 Rx", NULL, "AIF1 Capture" },
+
+        { "dmic01_hifi", NULL, "DMIC01 Rx" },
+        { "DMIC01 Rx", NULL, "Capture" },
+
+        { "hifi3", NULL, "iDisp3 Tx"},
+        { "iDisp3 Tx", NULL, "iDisp3_out"},
+        { "hifi2", NULL, "iDisp2 Tx"},
+        { "iDisp2 Tx", NULL, "iDisp2_out"},
+        { "hifi1", NULL, "iDisp1 Tx"},
+        { "iDisp1 Tx", NULL, "iDisp1_out"},
+
+};
+
+static int broxton_rt298_codec_init(struct snd_soc_pcm_runtime *rtd)
+{
+        struct snd_soc_codec *codec = rtd->codec;
+        int ret = 0;
+
+        ret = snd_soc_card_jack_new(rtd->card, "Headset",
+                SND_JACK_HEADSET | SND_JACK_BTN_0,
+                &broxton_headset,
+                broxton_headset_pins, ARRAY_SIZE(broxton_headset_pins));
+
+        if (ret)
+                return ret;
+
+        rt298_mic_detect(codec, &broxton_headset);
+        return 0;
+}
+
+static int broxton_hdmi_init(struct snd_soc_pcm_runtime *rtd)
+{
+        struct snd_soc_dai *dai = rtd->codec_dai;
+
+        return hdac_hdmi_jack_init(dai, BXT_DPCM_AUDIO_HDMI1_PB + dai->id);
+}
+
+static int broxton_ssp5_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);
+        struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+
+        /* The ADSP will covert the FE rate to 48k, stereo */
+        rate->min = rate->max = 48000;
+        channels->min = channels->max = 2;
+
+        /* set SSP5 to 24 bit */
+        snd_mask_none(fmt);
+        snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE);
+
+        return 0;
+}
+
+static int broxton_rt298_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, RT298_SCLK_S_PLL,
+                                        19200000, SND_SOC_CLOCK_IN);
+        if (ret < 0) {
+                dev_err(rtd->dev, "can't set codec sysclk configuration\n");
+                return ret;
+        }
+
+        return ret;
+}
+
+static struct snd_soc_ops broxton_rt298_ops = {
+        .hw_params = broxton_rt298_hw_params,
+};
+
+/* broxton digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link broxton_rt298_dais[] = {
+        /* Front End DAI links */
+        [BXT_DPCM_AUDIO_PB]
+        {
+                .name = "Bxt Audio Port",
+                .stream_name = "Audio",
+                .cpu_dai_name = "System Pin",
+                .platform_name = "0000:00:0e.0",
+                .nonatomic = 1,
+                .dynamic = 1,
+                .codec_name = "snd-soc-dummy",
+                .codec_dai_name = "snd-soc-dummy-dai",
+                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+                .dpcm_playback = 1,
+        },
+        [BXT_DPCM_AUDIO_CP]
+        {
+                .name = "Bxt Audio Capture Port",
+                .stream_name = "Audio Record",
+                .cpu_dai_name = "System Pin",
+                .platform_name = "0000:00:0e.0",
+                .nonatomic = 1,
+                .dynamic = 1,
+                .codec_name = "snd-soc-dummy",
+                .codec_dai_name = "snd-soc-dummy-dai",
+                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+                .dpcm_capture = 1,
+        },
+        [BXT_DPCM_AUDIO_REF_CP]
+        {
+                .name = "Bxt Audio Reference cap",
+                .stream_name = "refcap",
+                .cpu_dai_name = "Reference Pin",
+                .codec_name = "snd-soc-dummy",
+                .codec_dai_name = "snd-soc-dummy-dai",
+                .platform_name = "0000:00:0e.0",
+                .init = NULL,
+                .dpcm_capture = 1,
+                .nonatomic = 1,
+                .dynamic = 1,
+        },
+        [BXT_DPCM_AUDIO_HDMI1_PB]
+        {
+                .name = "Bxt HDMI Port1",
+                .stream_name = "Hdmi1",
+                .cpu_dai_name = "HDMI1 Pin",
+                .codec_name = "snd-soc-dummy",
+                .codec_dai_name = "snd-soc-dummy-dai",
+                .platform_name = "0000:00:0e.0",
+                .dpcm_playback = 1,
+                .init = NULL,
+                .nonatomic = 1,
+                .dynamic = 1,
+        },
+        [BXT_DPCM_AUDIO_HDMI2_PB]
+        {
+                .name = "Bxt HDMI Port2",
+                .stream_name = "Hdmi2",
+                .cpu_dai_name = "HDMI2 Pin",
+                .codec_name = "snd-soc-dummy",
+                .codec_dai_name = "snd-soc-dummy-dai",
+                .platform_name = "0000:00:0e.0",
+                .dpcm_playback = 1,
+                .init = NULL,
+                .nonatomic = 1,
+                .dynamic = 1,
+        },
+        [BXT_DPCM_AUDIO_HDMI3_PB]
+        {
+                .name = "Bxt HDMI Port3",
+                .stream_name = "Hdmi3",
+                .cpu_dai_name = "HDMI3 Pin",
+                .codec_name = "snd-soc-dummy",
+                .codec_dai_name = "snd-soc-dummy-dai",
+                .platform_name = "0000:00:0e.0",
+                .dpcm_playback = 1,
+                .init = NULL,
+                .nonatomic = 1,
+                .dynamic = 1,
+        },
+        /* Back End DAI links */
+        {
+                /* SSP5 - Codec */
+                .name = "SSP5-Codec",
+                .be_id = 0,
+                .cpu_dai_name = "SSP5 Pin",
+                .platform_name = "0000:00:0e.0",
+                .no_pcm = 1,
+                .codec_name = "i2c-INT343A:00",
+                .codec_dai_name = "rt298-aif1",
+                .init = broxton_rt298_codec_init,
+                .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF |
+                                                SND_SOC_DAIFMT_CBS_CFS,
+                .ignore_pmdown_time = 1,
+                .be_hw_params_fixup = broxton_ssp5_fixup,
+                .ops = &broxton_rt298_ops,
+                .dpcm_playback = 1,
+                .dpcm_capture = 1,
+        },
+        {
+                .name = "dmic01",
+                .be_id = 1,
+                .cpu_dai_name = "DMIC01 Pin",
+                .codec_name = "dmic-codec",
+                .codec_dai_name = "dmic-hifi",
+                .platform_name = "0000:00:0e.0",
+                .ignore_suspend = 1,
+                .dpcm_capture = 1,
+                .no_pcm = 1,
+        },
+        {
+                .name = "iDisp1",
+                .be_id = 3,
+                .cpu_dai_name = "iDisp1 Pin",
+                .codec_name = "ehdaudio0D2",
+                .codec_dai_name = "intel-hdmi-hifi1",
+                .platform_name = "0000:00:0e.0",
+                .init = broxton_hdmi_init,
+                .dpcm_playback = 1,
+                .no_pcm = 1,
+        },
+        {
+                .name = "iDisp2",
+                .be_id = 4,
+                .cpu_dai_name = "iDisp2 Pin",
+                .codec_name = "ehdaudio0D2",
+                .codec_dai_name = "intel-hdmi-hifi2",
+                .platform_name = "0000:00:0e.0",
+                .init = broxton_hdmi_init,
+                .dpcm_playback = 1,
+                .no_pcm = 1,
+        },
+        {
+                .name = "iDisp3",
+                .be_id = 5,
+                .cpu_dai_name = "iDisp3 Pin",
+                .codec_name = "ehdaudio0D2",
+                .codec_dai_name = "intel-hdmi-hifi3",
+                .platform_name = "0000:00:0e.0",
+                .init = broxton_hdmi_init,
+                .dpcm_playback = 1,
+                .no_pcm = 1,
+        },
+};
+
+/* broxton audio machine driver for SPT + RT298S */
+static struct snd_soc_card broxton_rt298 = {
+        .name = "broxton-rt298",
+        .owner = THIS_MODULE,
+        .dai_link = broxton_rt298_dais,
+        .num_links = ARRAY_SIZE(broxton_rt298_dais),
+        .controls = broxton_controls,
+        .num_controls = ARRAY_SIZE(broxton_controls),
+        .dapm_widgets = broxton_widgets,
+        .num_dapm_widgets = ARRAY_SIZE(broxton_widgets),
+        .dapm_routes = broxton_rt298_map,
+        .num_dapm_routes = ARRAY_SIZE(broxton_rt298_map),
+        .fully_routed = true,
+};
+
+static int broxton_audio_probe(struct platform_device *pdev)
+{
+        broxton_rt298.dev = &pdev->dev;
+
+        return devm_snd_soc_register_card(&pdev->dev, &broxton_rt298);
+}
+
+static struct platform_driver broxton_audio = {
+        .probe = broxton_audio_probe,
+        .driver = {
+                .name = "bxt_alc298s_i2s",
+        },
+};
+module_platform_driver(broxton_audio)
+
+/* Module information */
+MODULE_AUTHOR("Ramesh Babu <Ramesh.Babu@intel.com>");
+MODULE_AUTHOR("Senthilnathan Veppur <senthilnathanx.veppur@intel.com>");
+MODULE_DESCRIPTION("Intel SST Audio for Broxton");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:bxt_alc298s_i2s");