[PATCH 2/2] ASoC: Intel: boards: Add bdw-rt5677 machine driver

From: John Keeping
Date: Sun Aug 14 2016 - 07:19:01 EST

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This is used by the Chromebook Pixel 2015.

Signed-off-by: Ben Zhang <benzh@xxxxxxxxxxxx>
Signed-off-by: Dylan Reid <dgreid@xxxxxxxxxxxx>
[jk:
- forward-port driver from ChromeOS 3.14 tree to master
- remove wake on voice function that isn't supported by upstream rt5677
driver]
Signed-off-by: John Keeping <john@xxxxxxxxxxxx>
---
sound/soc/intel/Kconfig | 11 ++
sound/soc/intel/boards/Makefile | 2 +
sound/soc/intel/boards/bdw-rt5677.c | 341 ++++++++++++++++++++++++++++++++++++
sound/soc/intel/common/sst-acpi.c | 1 +
4 files changed, 355 insertions(+)
create mode 100644 sound/soc/intel/boards/bdw-rt5677.c

diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
index a20c3dfbcb5d..b141b226510d 100644
--- a/sound/soc/intel/Kconfig
+++ b/sound/soc/intel/Kconfig
@@ -120,6 +120,17 @@ config SND_SOC_INTEL_BYT_MAX98090_MACH
This adds audio driver for Intel Baytrail platform based boards
with the MAX98090 audio codec.

+config SND_SOC_INTEL_BDW_RT5677_MACH
+ tristate "ASoC Audio driver for Intel Broadwell with RT5677 codec"
+ depends on X86_INTEL_LPSS && I2C && DW_DMAC
+ depends on DW_DMAC_CORE=y
+ select SND_SOC_INTEL_SST
+ select SND_SOC_INTEL_HASWELL
+ select SND_SOC_RT5677
+ help
+ This adds support for Intel Broadwell platform based boards with
+ the RT5677 audio codec.
+
config SND_SOC_INTEL_BROADWELL_MACH
tristate "ASoC Audio DSP support for Intel Broadwell Wildcatpoint"
depends on X86_INTEL_LPSS && I2C && DW_DMAC && \
diff --git a/sound/soc/intel/boards/Makefile b/sound/soc/intel/boards/Makefile
index dac03a06bfd8..5639f10774e6 100644
--- a/sound/soc/intel/boards/Makefile
+++ b/sound/soc/intel/boards/Makefile
@@ -1,6 +1,7 @@
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-bdw-rt5677-mach-objs := bdw-rt5677.o
snd-soc-sst-broadwell-objs := broadwell.o
snd-soc-sst-bxt-da7219_max98357a-objs := bxt_da7219_max98357a.o
snd-soc-sst-bxt-rt298-objs := bxt_rt298.o
@@ -19,6 +20,7 @@ obj-$(CONFIG_SND_SOC_INTEL_BYT_MAX98090_MACH) += snd-soc-sst-byt-max98090-mach.o
obj-$(CONFIG_SND_SOC_INTEL_BXT_DA7219_MAX98357A_MACH) += snd-soc-sst-bxt-da7219_max98357a.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-$(CONFIG_SND_SOC_INTEL_BDW_RT5677_MACH) += snd-soc-sst-bdw-rt5677-mach.o
obj-$(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_BSW_RT5672_MACH) += snd-soc-sst-cht-bsw-rt5672.o
diff --git a/sound/soc/intel/boards/bdw-rt5677.c b/sound/soc/intel/boards/bdw-rt5677.c
new file mode 100644
index 000000000000..0179b28b548d
--- /dev/null
+++ b/sound/soc/intel/boards/bdw-rt5677.c
@@ -0,0 +1,341 @@
+/*
+ * ASoC machine driver for Intel Broadwell platforms with RT5677 codec
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/gpio/consumer.h>
+#include <linux/delay.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+#include <sound/jack.h>
+
+#include "../common/sst-dsp.h"
+#include "../haswell/sst-haswell-ipc.h"
+
+#include "../../codecs/rt5677.h"
+
+struct bdw_rt5677_priv {
+ struct gpio_desc *gpio_hp_en;
+ struct snd_soc_codec *codec;
+};
+
+static int bdw_rt5677_event_hp(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *k, int event)
+{
+ struct snd_soc_dapm_context *dapm = w->dapm;
+ struct snd_soc_card *card = dapm->card;
+ struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
+
+ if (SND_SOC_DAPM_EVENT_ON(event))
+ msleep(70);
+
+ gpiod_set_value_cansleep(bdw_rt5677->gpio_hp_en,
+ SND_SOC_DAPM_EVENT_ON(event));
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget bdw_rt5677_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone", bdw_rt5677_event_hp),
+ SND_SOC_DAPM_SPK("Speaker", NULL),
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+ SND_SOC_DAPM_MIC("Local DMICs", NULL),
+ SND_SOC_DAPM_MIC("Remote DMICs", NULL),
+};
+
+static const struct snd_soc_dapm_route bdw_rt5677_map[] = {
+ /* Speakers */
+ {"Speaker", NULL, "PDM1L"},
+ {"Speaker", NULL, "PDM1R"},
+
+ /* Headset jack connectors */
+ {"Headphone", NULL, "LOUT1"},
+ {"Headphone", NULL, "LOUT2"},
+ {"IN1P", NULL, "Headset Mic"},
+ {"IN1N", NULL, "Headset Mic"},
+
+ /* Digital MICs
+ * Local DMICs: the two DMICs on the mainboard
+ * Remote DMICs: the two DMICs on the camera module
+ */
+ {"DMIC L1", NULL, "Remote DMICs"},
+ {"DMIC R1", NULL, "Remote DMICs"},
+ {"DMIC L2", NULL, "Local DMICs"},
+ {"DMIC R2", NULL, "Local DMICs"},
+
+ /* CODEC BE connections */
+ {"SSP0 CODEC IN", NULL, "AIF1 Capture"},
+ {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
+};
+
+static const struct snd_kcontrol_new bdw_rt5677_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Speaker"),
+ SOC_DAPM_PIN_SWITCH("Headphone"),
+ SOC_DAPM_PIN_SWITCH("Headset Mic"),
+ SOC_DAPM_PIN_SWITCH("Local DMICs"),
+ SOC_DAPM_PIN_SWITCH("Remote DMICs"),
+};
+
+
+static struct snd_soc_jack headphone_jack;
+static struct snd_soc_jack mic_jack;
+
+static struct snd_soc_jack_pin headphone_jack_pin = {
+ .pin = "Headphone",
+ .mask = SND_JACK_HEADPHONE,
+};
+
+static struct snd_soc_jack_pin mic_jack_pin = {
+ .pin = "Headset Mic",
+ .mask = SND_JACK_MICROPHONE,
+};
+
+static struct snd_soc_jack_gpio headphone_jack_gpio = {
+ .name = "plug-det",
+ .report = SND_JACK_HEADPHONE,
+ .debounce_time = 200,
+};
+
+static struct snd_soc_jack_gpio mic_jack_gpio = {
+ .name = "mic-present",
+ .report = SND_JACK_MICROPHONE,
+ .debounce_time = 200,
+ .invert = 1,
+};
+
+static int broadwell_ssp0_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);
+
+ /* The ADSP will covert the FE rate to 48k, stereo */
+ rate->min = rate->max = 48000;
+ channels->min = channels->max = 2;
+
+ /* set SSP0 to 16 bit */
+ snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
+ SNDRV_PCM_HW_PARAM_FIRST_MASK],
+ SNDRV_PCM_FORMAT_S16_LE);
+ return 0;
+}
+
+static int bdw_rt5677_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, RT5677_SCLK_S_MCLK, 24576000,
+ 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 bdw_rt5677_ops = {
+ .hw_params = bdw_rt5677_hw_params,
+};
+
+static int bdw_rt5677_rtd_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct sst_pdata *pdata = dev_get_platdata(rtd->platform->dev);
+ struct sst_hsw *broadwell = pdata->dsp;
+ int ret;
+
+ /* Set ADSP SSP port settings */
+ ret = sst_hsw_device_set_config(broadwell, SST_HSW_DEVICE_SSP_0,
+ SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
+ SST_HSW_DEVICE_CLOCK_MASTER, 9);
+ if (ret < 0) {
+ dev_err(rtd->dev, "error: failed to set device config\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int bdw_rt5677_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct bdw_rt5677_priv *bdw_rt5677 =
+ snd_soc_card_get_drvdata(rtd->card);
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
+
+ /* Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1.
+ * The ASRC clock source is clk_i2s1_asrc.
+ */
+ rt5677_sel_asrc_clk_src(codec, RT5677_DA_STEREO_FILTER |
+ RT5677_AD_STEREO1_FILTER | RT5677_I2S1_SOURCE,
+ RT5677_CLK_SEL_I2S1_ASRC);
+
+ /* Request rt5677 GPIO for headphone amp control */
+ bdw_rt5677->gpio_hp_en = devm_gpiod_get_index(codec->dev,
+ "headphone-enable", 0, 0);
+ if (IS_ERR(bdw_rt5677->gpio_hp_en)) {
+ dev_err(codec->dev, "Can't find HP_AMP_SHDN_L gpio\n");
+ return PTR_ERR(bdw_rt5677->gpio_hp_en);
+ }
+ gpiod_direction_output(bdw_rt5677->gpio_hp_en, 0);
+
+ /* Create and initialize headphone jack */
+ if (!snd_soc_card_jack_new(rtd->card, "Headphone Jack",
+ SND_JACK_HEADPHONE, &headphone_jack,
+ &headphone_jack_pin, 1)) {
+ headphone_jack_gpio.gpiod_dev = codec->dev;
+ if (snd_soc_jack_add_gpios(&headphone_jack, 1,
+ &headphone_jack_gpio))
+ dev_err(codec->dev, "Can't add headphone jack gpio\n");
+ } else {
+ dev_err(codec->dev, "Can't create headphone jack\n");
+ }
+
+ /* Create and initialize mic jack */
+ if (!snd_soc_card_jack_new(rtd->card, "Mic Jack",
+ SND_JACK_MICROPHONE, &mic_jack,
+ &mic_jack_pin, 1)) {
+ mic_jack_gpio.gpiod_dev = codec->dev;
+ if (snd_soc_jack_add_gpios(&mic_jack, 1, &mic_jack_gpio))
+ dev_err(codec->dev, "Can't add mic jack gpio\n");
+ } else {
+ dev_err(codec->dev, "Can't create mic jack\n");
+ }
+ bdw_rt5677->codec = codec;
+
+ snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
+ return 0;
+}
+
+/* broadwell digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link bdw_rt5677_dais[] = {
+ /* Front End DAI links */
+ {
+ .name = "System PCM",
+ .stream_name = "System Playback/Capture",
+ .cpu_dai_name = "System Pin",
+ .platform_name = "haswell-pcm-audio",
+ .dynamic = 1,
+ .codec_name = "snd-soc-dummy",
+ .codec_dai_name = "snd-soc-dummy-dai",
+ .init = bdw_rt5677_rtd_init,
+ .trigger = {
+ SND_SOC_DPCM_TRIGGER_POST,
+ SND_SOC_DPCM_TRIGGER_POST
+ },
+ .dpcm_capture = 1,
+ .dpcm_playback = 1,
+ },
+
+ /* Back End DAI links */
+ {
+ /* SSP0 - Codec */
+ .name = "Codec",
+ .id = 0,
+ .cpu_dai_name = "snd-soc-dummy-dai",
+ .platform_name = "snd-soc-dummy",
+ .no_pcm = 1,
+ .codec_name = "i2c-RT5677CE:00",
+ .codec_dai_name = "rt5677-aif1",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS,
+ .ignore_suspend = 1,
+ .ignore_pmdown_time = 1,
+ .be_hw_params_fixup = broadwell_ssp0_fixup,
+ .ops = &bdw_rt5677_ops,
+ .dpcm_playback = 1,
+ .dpcm_capture = 1,
+ .init = bdw_rt5677_init,
+ },
+};
+
+static int bdw_rt5677_suspend_pre(struct snd_soc_card *card)
+{
+ struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
+ struct snd_soc_dapm_context *dapm;
+
+ if (bdw_rt5677->codec) {
+ dapm = snd_soc_codec_get_dapm(bdw_rt5677->codec);
+ snd_soc_dapm_disable_pin(dapm, "MICBIAS1");
+ }
+ return 0;
+}
+
+static int bdw_rt5677_resume_post(struct snd_soc_card *card)
+{
+ struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
+ struct snd_soc_dapm_context *dapm;
+
+ if (bdw_rt5677->codec) {
+ dapm = snd_soc_codec_get_dapm(bdw_rt5677->codec);
+ snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
+ }
+ return 0;
+}
+
+/* ASoC machine driver for Broadwell DSP + RT5677 */
+static struct snd_soc_card bdw_rt5677_card = {
+ .name = "bdw-rt5677",
+ .owner = THIS_MODULE,
+ .dai_link = bdw_rt5677_dais,
+ .num_links = ARRAY_SIZE(bdw_rt5677_dais),
+ .dapm_widgets = bdw_rt5677_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(bdw_rt5677_widgets),
+ .dapm_routes = bdw_rt5677_map,
+ .num_dapm_routes = ARRAY_SIZE(bdw_rt5677_map),
+ .controls = bdw_rt5677_controls,
+ .num_controls = ARRAY_SIZE(bdw_rt5677_controls),
+ .fully_routed = true,
+ .suspend_pre = bdw_rt5677_suspend_pre,
+ .resume_post = bdw_rt5677_resume_post,
+};
+
+static int bdw_rt5677_probe(struct platform_device *pdev)
+{
+ struct bdw_rt5677_priv *bdw_rt5677;
+
+ bdw_rt5677_card.dev = &pdev->dev;
+
+ /* Allocate driver private struct */
+ bdw_rt5677 = devm_kzalloc(&pdev->dev, sizeof(struct bdw_rt5677_priv),
+ GFP_KERNEL);
+ if (!bdw_rt5677) {
+ dev_err(&pdev->dev, "Can't allocate bdw_rt5677\n");
+ return -ENOMEM;
+ }
+
+ snd_soc_card_set_drvdata(&bdw_rt5677_card, bdw_rt5677);
+
+ return snd_soc_register_card(&bdw_rt5677_card);
+}
+
+static int bdw_rt5677_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_card(&bdw_rt5677_card);
+ return 0;
+}
+
+static struct platform_driver bdw_rt5677_audio = {
+ .probe = bdw_rt5677_probe,
+ .remove = bdw_rt5677_remove,
+ .driver = {
+ .name = "bdw-rt5677",
+ .owner = THIS_MODULE,
+ },
+};
+
+module_platform_driver(bdw_rt5677_audio)
+
+/* Module information */
+MODULE_AUTHOR("Ben Zhang");
+MODULE_DESCRIPTION("Intel Broadwell RT5677 machine driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:bdw-rt5677");
diff --git a/sound/soc/intel/common/sst-acpi.c b/sound/soc/intel/common/sst-acpi.c
index 2c5eda14d510..1285cc597b6b 100644
--- a/sound/soc/intel/common/sst-acpi.c
+++ b/sound/soc/intel/common/sst-acpi.c
@@ -199,6 +199,7 @@ static struct sst_acpi_desc sst_acpi_haswell_desc = {

static struct sst_acpi_mach broadwell_machines[] = {
{ "INT343A", "broadwell-audio", "intel/IntcSST2.bin", NULL, NULL, NULL },
+ { "RT5677CE", "bdw-rt5677", "intel/IntcSST2.bin", NULL, NULL, NULL },
{}
};

--
2.9.3.728.g30b24b4.dirty

Next message: Ben Hutchings: "[PATCH 3.16 221/305] cifs: use CIFS_MAX_DOMAINNAME_LEN when converting the domain name"
Previous message: John Keeping: "[PATCH 1/2] ASoC: rt5677: Add ACPI support"
In reply to: John Keeping: "[PATCH 1/2] ASoC: rt5677: Add ACPI support"
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