ASoC: Intel: add bytct-rt5651 machine driver

based on bytcr-rt5640 with changes only on codec side
Quirk logic is kept as placeholder.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

4 files changed, 349 insertions, 0 deletions

diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
index 337e178c1acb..803f95e40679 100644
--- a/sound/soc/intel/Kconfig
+++ b/sound/soc/intel/Kconfig
@@ -103,6 +103,18 @@ config SND_SOC_INTEL_BYTCR_RT5640_MACH
           Say Y if you have such a device
           If unsure select "N".
 
+config SND_SOC_INTEL_BYTCR_RT5651_MACH
+        tristate "ASoC Audio driver for Intel Baytrail and Baytrail-CR with RT5651 codec"
+        depends on X86 && I2C
+        select SND_SOC_RT5651
+        select SND_SST_MFLD_PLATFORM
+        select SND_SST_IPC_ACPI
+        help
+          This adds support for ASoC machine driver for Intel(R) Baytrail and Baytrail-CR
+          platforms with RT5651 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
diff --git a/sound/soc/intel/atom/sst/sst_acpi.c b/sound/soc/intel/atom/sst/sst_acpi.c
index f424460b917e..b6ea0a58f9d3 100644
--- a/sound/soc/intel/atom/sst/sst_acpi.c
+++ b/sound/soc/intel/atom/sst/sst_acpi.c
@@ -316,6 +316,9 @@ static int sst_acpi_remove(struct platform_device *pdev)
 static struct sst_acpi_mach sst_acpi_bytcr[] = {
         {"10EC5640", "bytcr_rt5640", "intel/fw_sst_0f28.bin", "bytcr_rt5640", NULL,
                                                 &byt_rvp_platform_data },
+        {"10EC5651", "bytcr_rt5651", "intel/fw_sst_0f28.bin", "bytcr_rt5651", NULL,
+                                                &byt_rvp_platform_data },
+
         {},
 };
 
diff --git a/sound/soc/intel/boards/Makefile b/sound/soc/intel/boards/Makefile
index 2485ea9434ad..3310c0f9c356 100644
--- a/sound/soc/intel/boards/Makefile
+++ b/sound/soc/intel/boards/Makefile
@@ -3,6 +3,7 @@ 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-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
 snd-soc-sst-cht-bsw-rt5645-objs := cht_bsw_rt5645.o
 snd-soc-sst-cht-bsw-max98090_ti-objs := cht_bsw_max98090_ti.o
@@ -15,6 +16,7 @@ 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-$(CONFIG_SND_SOC_INTEL_BROADWELL_MACH) += snd-soc-sst-broadwell.o
 obj-$(CONFIG_SND_SOC_INTEL_BYTCR_RT5640_MACH) += snd-soc-sst-bytcr-rt5640.o
+obj-$(CONFIG_SND_SOC_INTEL_BYTCR_RT5651_MACH) += snd-soc-sst-bytcr-rt5651.o
 obj-$(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
diff --git a/sound/soc/intel/boards/bytcr_rt5651.c b/sound/soc/intel/boards/bytcr_rt5651.c
new file mode 100644
index 000000000000..1c95ccc886c4
--- /dev/null
+++ b/sound/soc/intel/boards/bytcr_rt5651.c
@@ -0,0 +1,332 @@
+/*
+ *  bytcr_rt5651.c - ASoc Machine driver for Intel Byt CR platform
+ *  (derived from bytcr_rt5640.c)
+ *
+ *  Copyright (C) 2015 Intel Corp
+ *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  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/dmi.h>
+#include <linux/slab.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include "../../codecs/rt5651.h"
+#include "../atom/sst-atom-controls.h"
+
+static const struct snd_soc_dapm_widget byt_rt5651_widgets[] = {
+        SND_SOC_DAPM_HP("Headphone", NULL),
+        SND_SOC_DAPM_MIC("Headset Mic", NULL),
+        SND_SOC_DAPM_MIC("Internal Mic", NULL),
+        SND_SOC_DAPM_SPK("Speaker", NULL),
+};
+
+static const struct snd_soc_dapm_route byt_rt5651_audio_map[] = {
+        {"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"},
+
+        {"Headset Mic", NULL, "micbias1"}, /* lowercase for rt5651 */
+        {"IN2P", NULL, "Headset Mic"},
+        {"Headphone", NULL, "HPOL"},
+        {"Headphone", NULL, "HPOR"},
+        {"Speaker", NULL, "LOUTL"},
+        {"Speaker", NULL, "LOUTR"},
+};
+
+static const struct snd_soc_dapm_route byt_rt5651_intmic_dmic1_map[] = {
+        {"DMIC1", NULL, "Internal Mic"},
+};
+
+static const struct snd_soc_dapm_route byt_rt5651_intmic_dmic2_map[] = {
+        {"DMIC2", NULL, "Internal Mic"},
+};
+
+static const struct snd_soc_dapm_route byt_rt5651_intmic_in1_map[] = {
+        {"Internal Mic", NULL, "micbias1"},
+        {"IN1P", NULL, "Internal Mic"},
+};
+
+enum {
+        BYT_RT5651_DMIC1_MAP,
+        BYT_RT5651_DMIC2_MAP,
+        BYT_RT5651_IN1_MAP,
+};
+
+#define BYT_RT5651_MAP(quirk)   ((quirk) & 0xff)
+#define BYT_RT5651_DMIC_EN      BIT(16)
+
+static unsigned long byt_rt5651_quirk = BYT_RT5651_DMIC1_MAP |
+                                        BYT_RT5651_DMIC_EN;
+
+static const struct snd_kcontrol_new byt_rt5651_controls[] = {
+        SOC_DAPM_PIN_SWITCH("Headphone"),
+        SOC_DAPM_PIN_SWITCH("Headset Mic"),
+        SOC_DAPM_PIN_SWITCH("Internal Mic"),
+        SOC_DAPM_PIN_SWITCH("Speaker"),
+};
+
+static int byt_rt5651_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;
+
+        snd_soc_dai_set_bclk_ratio(codec_dai, 50);
+
+        ret = snd_soc_dai_set_sysclk(codec_dai, RT5651_SCLK_S_PLL1,
+                                     params_rate(params) * 512,
+                                     SND_SOC_CLOCK_IN);
+        if (ret < 0) {
+                dev_err(rtd->dev, "can't set codec clock %d\n", ret);
+                return ret;
+        }
+
+        ret = snd_soc_dai_set_pll(codec_dai, 0, RT5651_PLL1_S_BCLK1,
+                                  params_rate(params) * 50,
+                                  params_rate(params) * 512);
+        if (ret < 0) {
+                dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
+                return ret;
+        }
+
+        return 0;
+}
+
+static const struct dmi_system_id byt_rt5651_quirk_table[] = {
+        {}
+};
+
+static int byt_rt5651_init(struct snd_soc_pcm_runtime *runtime)
+{
+        int ret;
+        struct snd_soc_card *card = runtime->card;
+        const struct snd_soc_dapm_route *custom_map;
+        int num_routes;
+
+        card->dapm.idle_bias_off = true;
+
+        dmi_check_system(byt_rt5651_quirk_table);
+        switch (BYT_RT5651_MAP(byt_rt5651_quirk)) {
+        case BYT_RT5651_IN1_MAP:
+                custom_map = byt_rt5651_intmic_in1_map;
+                num_routes = ARRAY_SIZE(byt_rt5651_intmic_in1_map);
+                break;
+        case BYT_RT5651_DMIC2_MAP:
+                custom_map = byt_rt5651_intmic_dmic2_map;
+                num_routes = ARRAY_SIZE(byt_rt5651_intmic_dmic2_map);
+                break;
+        default:
+                custom_map = byt_rt5651_intmic_dmic1_map;
+                num_routes = ARRAY_SIZE(byt_rt5651_intmic_dmic1_map);
+        }
+
+        ret = snd_soc_add_card_controls(card, byt_rt5651_controls,
+                                        ARRAY_SIZE(byt_rt5651_controls));
+        if (ret) {
+                dev_err(card->dev, "unable to add card controls\n");
+                return ret;
+        }
+        snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
+        snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
+
+        return ret;
+}
+
+static const struct snd_soc_pcm_stream byt_rt5651_dai_params = {
+        .formats = SNDRV_PCM_FMTBIT_S24_LE,
+        .rate_min = 48000,
+        .rate_max = 48000,
+        .channels_min = 2,
+        .channels_max = 2,
+};
+
+static int byt_rt5651_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_IF   |
+                                  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;
+        }
+
+        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 byt_rt5651_aif1_startup(struct snd_pcm_substream *substream)
+{
+        return snd_pcm_hw_constraint_list(substream->runtime, 0,
+                        SNDRV_PCM_HW_PARAM_RATE,
+                        &constraints_48000);
+}
+
+static struct snd_soc_ops byt_rt5651_aif1_ops = {
+        .startup = byt_rt5651_aif1_startup,
+};
+
+static struct snd_soc_ops byt_rt5651_be_ssp2_ops = {
+        .hw_params = byt_rt5651_aif1_hw_params,
+};
+
+static struct snd_soc_dai_link byt_rt5651_dais[] = {
+        [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",
+                .ignore_suspend = 1,
+                .nonatomic = true,
+                .dynamic = 1,
+                .dpcm_playback = 1,
+                .dpcm_capture = 1,
+                .ops = &byt_rt5651_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",
+                .ignore_suspend = 1,
+                .nonatomic = true,
+                .dynamic = 1,
+                .dpcm_playback = 1,
+                .ops = &byt_rt5651_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",
+                .be_id = 1,
+                .cpu_dai_name = "ssp2-port",
+                .platform_name = "sst-mfld-platform",
+                .no_pcm = 1,
+                .codec_dai_name = "rt5651-aif1",
+                .codec_name = "i2c-10EC5651:00",
+                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+                                                | SND_SOC_DAIFMT_CBS_CFS,
+                .be_hw_params_fixup = byt_rt5651_codec_fixup,
+                .ignore_suspend = 1,
+                .nonatomic = true,
+                .dpcm_playback = 1,
+                .dpcm_capture = 1,
+                .init = byt_rt5651_init,
+                .ops = &byt_rt5651_be_ssp2_ops,
+        },
+};
+
+/* SoC card */
+static struct snd_soc_card byt_rt5651_card = {
+        .name = "bytcr-rt5651",
+        .owner = THIS_MODULE,
+        .dai_link = byt_rt5651_dais,
+        .num_links = ARRAY_SIZE(byt_rt5651_dais),
+        .dapm_widgets = byt_rt5651_widgets,
+        .num_dapm_widgets = ARRAY_SIZE(byt_rt5651_widgets),
+        .dapm_routes = byt_rt5651_audio_map,
+        .num_dapm_routes = ARRAY_SIZE(byt_rt5651_audio_map),
+        .fully_routed = true,
+};
+
+static int snd_byt_rt5651_mc_probe(struct platform_device *pdev)
+{
+        int ret_val = 0;
+
+        /* register the soc card */
+        byt_rt5651_card.dev = &pdev->dev;
+
+        ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5651_card);
+
+        if (ret_val) {
+                dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
+                        ret_val);
+                return ret_val;
+        }
+        platform_set_drvdata(pdev, &byt_rt5651_card);
+        return ret_val;
+}
+
+static struct platform_driver snd_byt_rt5651_mc_driver = {
+        .driver = {
+                .name = "bytcr_rt5651",
+                .pm = &snd_soc_pm_ops,
+        },
+        .probe = snd_byt_rt5651_mc_probe,
+};
+
+module_platform_driver(snd_byt_rt5651_mc_driver);
+
+MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver for RT5651");
+MODULE_AUTHOR("Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:bytcr_rt5651");