* [RFC PATCH 1/3] ASoC: Intel: Add Lenovo Yoga Book RT5677 machine driver
2026-08-26 13:23 [RFC PATCH 0/3] ASoC: Intel: Add Lenovo Yoga Book RT5677 support Maurizio Casciano
@ 2026-08-26 13:23 ` Maurizio Casciano
2026-08-26 13:23 ` [RFC PATCH 2/3] ASoC: Intel: cht: Match the Yoga Book RT5677 machine Maurizio Casciano
` (2 subsequent siblings)
3 siblings, 0 replies; 7+ messages in thread
From: Maurizio Casciano @ 2026-08-26 13:23 UTC (permalink / raw)
To: Mark Brown
Cc: Cezary Rojewski, Liam Girdwood, Peter Ujfalusi, Bard Liao,
Kai Vehmanen, Pierre-Louis Bossart, Jaroslav Kysela,
Takashi Iwai, linux-sound, linux-kernel, Maurizio Casciano
The Lenovo Yoga Book YB1-X91F/L uses the Cherry Trail SSP2 link with
an RT5677 codec and a TS3A227E headset detector. Its amplifiers and
headphone path also need board-specific GPIO sequencing.
Add a Yoga Book machine driver derived from Yauhen Kharuzhy's
GPL-2.0 cht_bsw_rt5677 implementation. Retain its copyright notice.
Allocate the card, links, codec component and notifier per device so
probing does not mutate global templates. Support SST and SOF parent
naming, MCLK/PLL setup, jack buttons, microphones and output controls.
Link: https://github.com/jekhor/yogabook-linux-kernel/commit/4e41d0ff72c1d1fd8d5c59dda247e4ca8a1da999
Signed-off-by: Maurizio Casciano <mauriziocasciano7@gmail.com>
Assisted-by: Codex:gpt-5.6-sol sparse
---
MAINTAINERS | 1 +
sound/soc/intel/boards/Kconfig | 14 +
sound/soc/intel/boards/Makefile | 2 +
sound/soc/intel/boards/cht_yogabook.c | 616 ++++++++++++++++++++++++++
4 files changed, 633 insertions(+)
create mode 100644 sound/soc/intel/boards/cht_yogabook.c
diff --git a/MAINTAINERS b/MAINTAINERS
index 8014b9f8253e..83b49d9ad01c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12909,6 +12909,7 @@ R: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
L: linux-sound@vger.kernel.org
S: Supported
F: sound/soc/intel/
+F: sound/soc/intel/boards/cht_yogabook.c
INTEL ATOMISP2 DUMMY / POWER-MANAGEMENT DRIVER
M: Hans de Goede <hansg@kernel.org>
diff --git a/sound/soc/intel/boards/Kconfig b/sound/soc/intel/boards/Kconfig
index cddbd2aa424e..fe5b1cb154e3 100644
--- a/sound/soc/intel/boards/Kconfig
+++ b/sound/soc/intel/boards/Kconfig
@@ -161,6 +161,20 @@ config SND_SOC_INTEL_CHT_BSW_RT5672_MACH
Say Y or m if you have such a device. This is a recommended option.
If unsure select "N".
+config SND_SOC_INTEL_CHT_YOGABOOK_MACH
+ tristate "Cherrytrail-based Lenovo Yoga Book tablet"
+ depends on X86_INTEL_LPSS && I2C && ACPI && SPI_MASTER
+ select SND_SOC_ACPI
+ select SND_SOC_RT5677
+ select SND_SOC_RT5677_SPI
+ select SND_SOC_TS3A227E
+ help
+ This adds support for the RT5677 audio hardware in the Lenovo Yoga
+ Book YB1-X91 Cherry Trail tablets.
+ The machine driver connects the Cherry Trail audio platform to the
+ RT5677 codec and TS3A227E headset-jack detector.
+ Say Y or m if you have such a device.
+
config SND_SOC_INTEL_CHT_BSW_RT5645_MACH
tristate "Cherrytrail & Braswell with RT5645/5650 codec"
depends on I2C && ACPI
diff --git a/sound/soc/intel/boards/Makefile b/sound/soc/intel/boards/Makefile
index 25a1a9066cbf..bf521aaab4e7 100644
--- a/sound/soc/intel/boards/Makefile
+++ b/sound/soc/intel/boards/Makefile
@@ -9,6 +9,7 @@ snd-soc-sst-bytcr-rt5640-y := bytcr_rt5640.o
snd-soc-sst-bytcr-rt5651-y := bytcr_rt5651.o
snd-soc-sst-bytcr-wm5102-y := bytcr_wm5102.o
snd-soc-sst-cht-bsw-rt5672-y := cht_bsw_rt5672.o
+snd-soc-sst-cht-yogabook-y := cht_yogabook.o
snd-soc-sst-cht-bsw-rt5645-y := cht_bsw_rt5645.o
snd-soc-sst-cht-bsw-max98090_ti-y := cht_bsw_max98090_ti.o
snd-soc-sst-cht-bsw-nau8824-y := cht_bsw_nau8824.o
@@ -41,6 +42,7 @@ 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-$(CONFIG_SND_SOC_INTEL_BYTCR_WM5102_MACH) += snd-soc-sst-bytcr-wm5102.o
obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_RT5672_MACH) += snd-soc-sst-cht-bsw-rt5672.o
+obj-$(CONFIG_SND_SOC_INTEL_CHT_YOGABOOK_MACH) += snd-soc-sst-cht-yogabook.o
obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_RT5645_MACH) += snd-soc-sst-cht-bsw-rt5645.o
obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_MAX98090_TI_MACH) += snd-soc-sst-cht-bsw-max98090_ti.o
obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_NAU8824_MACH) += snd-soc-sst-cht-bsw-nau8824.o
diff --git a/sound/soc/intel/boards/cht_yogabook.c b/sound/soc/intel/boards/cht_yogabook.c
new file mode 100644
index 000000000000..a4def23fb5e0
--- /dev/null
+++ b/sound/soc/intel/boards/cht_yogabook.c
@@ -0,0 +1,616 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * cht_yogabook.c - ASoC machine driver for the Lenovo Yoga Book
+ *
+ * Copyright (C) 2019 Yauhen Kharuzhy <jekhor@gmail.com>
+ *
+ * Based on cht_bsw_rt5672.c:
+ * Copyright (C) 2014 Intel Corp
+ * Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
+ * Mengdong Lin <mengdong.lin@intel.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include "../../codecs/rt5677.h"
+#include "../../codecs/ts3a227e.h"
+#include "../atom/sst-atom-controls.h"
+
+#define RT5677_I2C "i2c-rt5677"
+
+/* Platform clock 3 provides the codec's 19.2 MHz I2S master clock. */
+#define CHT_PLAT_CLK_3_HZ 19200000
+#define CHT_CODEC_DAI "rt5677-aif1"
+
+struct cht_mc_private {
+ char codec_name[SND_ACPI_I2C_ID_LEN];
+ struct snd_soc_jack jack;
+ struct notifier_block jack_nb;
+ struct clk *mclk;
+ struct gpio_desc *gpio_spk_en1;
+ struct gpio_desc *gpio_spk_en2;
+ struct gpio_desc *gpio_hp_en;
+};
+
+static int platform_clock_control(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 = snd_soc_dapm_to_card(dapm);
+ struct snd_soc_dai *codec_dai;
+ struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
+ int ret;
+
+ dev_dbg(card->dev, "Setting platform clock\n");
+
+ codec_dai = snd_soc_card_get_codec_dai(card, CHT_CODEC_DAI);
+ if (!codec_dai) {
+ dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
+ return -EIO;
+ }
+
+ if (SND_SOC_DAPM_EVENT_ON(event)) {
+ if (ctx->mclk) {
+ ret = clk_prepare_enable(ctx->mclk);
+ if (ret < 0) {
+ dev_err(card->dev,
+ "could not configure MCLK state");
+ return ret;
+ }
+ }
+
+ /* set codec PLL source to the 19.2MHz platform clock (MCLK) */
+ ret = snd_soc_dai_set_pll(codec_dai, 0, RT5677_PLL1_S_MCLK,
+ CHT_PLAT_CLK_3_HZ, 48000 * 512);
+ if (ret < 0) {
+ dev_err(card->dev, "can't set codec pll: %d\n", ret);
+ goto disable_mclk;
+ }
+
+ /* set codec sysclk source to PLL */
+ ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_PLL1,
+ 48000 * 512, SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
+ goto disable_mclk;
+ }
+ } else {
+ /*
+ * Set codec sysclk source to its internal clock because codec
+ * PLL will be off when idle and MCLK will also be off by ACPI
+ * when codec is runtime suspended. Codec needs clock for jack
+ * detection and button press.
+ */
+ snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_RCCLK,
+ 48000 * 512, SND_SOC_CLOCK_IN);
+
+ if (ctx->mclk)
+ clk_disable_unprepare(ctx->mclk);
+ }
+ return 0;
+
+disable_mclk:
+ if (ctx->mclk)
+ clk_disable_unprepare(ctx->mclk);
+ return ret;
+}
+
+static int cht_yb_hp_event(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 = snd_soc_dapm_to_card(dapm);
+ struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
+
+ dev_dbg(card->dev, "HP event: %s\n",
+ SND_SOC_DAPM_EVENT_ON(event) ? "ON" : "OFF");
+
+ if (SND_SOC_DAPM_EVENT_ON(event)) {
+ msleep(20);
+ gpiod_set_value_cansleep(ctx->gpio_hp_en, 1);
+ msleep(50);
+ } else {
+ gpiod_set_value_cansleep(ctx->gpio_hp_en, 0);
+ }
+
+ return 0;
+}
+
+static int cht_yb_spk_event(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 = snd_soc_dapm_to_card(dapm);
+ struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
+
+ dev_dbg(card->dev, "SPK event: %s\n",
+ SND_SOC_DAPM_EVENT_ON(event) ? "ON" : "OFF");
+
+ /* Replicate the speaker-enable pulse sequence from Lenovo's kernel. */
+ if (SND_SOC_DAPM_EVENT_ON(event)) {
+ gpiod_set_value_cansleep(ctx->gpio_spk_en1, 1);
+ udelay(2);
+ gpiod_set_value_cansleep(ctx->gpio_spk_en1, 0);
+ udelay(2);
+ gpiod_set_value_cansleep(ctx->gpio_spk_en1, 1);
+ udelay(2);
+ gpiod_set_value_cansleep(ctx->gpio_spk_en1, 0);
+ udelay(2);
+ }
+
+ gpiod_set_value_cansleep(ctx->gpio_spk_en1, SND_SOC_DAPM_EVENT_ON(event));
+ gpiod_set_value_cansleep(ctx->gpio_spk_en2, SND_SOC_DAPM_EVENT_ON(event));
+ msleep(50);
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone", cht_yb_hp_event),
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+ SND_SOC_DAPM_MIC("Int Mic", NULL),
+ SND_SOC_DAPM_SPK("Speaker", cht_yb_spk_event),
+ SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
+ platform_clock_control, SND_SOC_DAPM_PRE_PMU |
+ SND_SOC_DAPM_POST_PMD),
+};
+
+static const struct snd_soc_dapm_route cht_audio_map[] = {
+ {"IN1P", NULL, "Headset Mic"},
+ {"IN1N", NULL, "Headset Mic"},
+ {"DMIC L1", NULL, "Int Mic"},
+ {"DMIC R1", NULL, "Int Mic"},
+ {"Headphone", NULL, "LOUT1"},
+ {"Headphone", NULL, "LOUT2"},
+ {"Speaker", NULL, "LOUT1"},
+ {"Speaker", NULL, "LOUT2"},
+
+ {"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"},
+ {"Headphone", NULL, "Platform Clock"},
+ {"Speaker", NULL, "Platform Clock"},
+ {"Headset Mic", NULL, "Platform Clock"},
+ {"Int Mic", NULL, "Platform Clock"},
+};
+
+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("Speaker"),
+};
+
+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 = snd_soc_rtd_to_codec(rtd, 0);
+ int ret;
+
+ /* set codec PLL source to the 19.2MHz platform clock (MCLK) */
+ ret = snd_soc_dai_set_pll(codec_dai, 0, RT5677_PLL1_S_MCLK,
+ CHT_PLAT_CLK_3_HZ, params_rate(params) * 512);
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
+ return ret;
+ }
+
+ /* set codec sysclk source to PLL */
+ ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_PLL1,
+ params_rate(params) * 512,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
+ return ret;
+ }
+ /*
+ * Default mode for SSP configuration is TDM 4 slot
+ */
+ ret = snd_soc_dai_set_fmt(codec_dai,
+ SND_SOC_DAIFMT_DSP_B |
+ SND_SOC_DAIFMT_IB_NF |
+ SND_SOC_DAIFMT_CBC_CFC);
+ if (ret < 0) {
+ dev_err(codec_dai->dev, "can't set format to TDM %d\n", ret);
+ return ret;
+ }
+
+ /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */
+ ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 25);
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int cht_yb_jack_event(struct notifier_block *nb,
+ unsigned long event, void *data)
+{
+ struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
+ struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(jack->card);
+
+ if (event & SND_JACK_MICROPHONE) {
+ snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
+ snd_soc_dapm_sync(dapm);
+ } else {
+ snd_soc_dapm_disable_pin(dapm, "MICBIAS1");
+ snd_soc_dapm_sync(dapm);
+ }
+
+ return 0;
+}
+
+static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
+{
+ struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
+ struct snd_soc_component *component = codec_dai->component;
+ struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
+ struct snd_soc_jack *jack = &ctx->jack;
+ int ret;
+
+ /*
+ * Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1.
+ * The ASRC clock source is clk_i2s1_asrc.
+ */
+ rt5677_sel_asrc_clk_src(component, RT5677_DA_STEREO_FILTER |
+ RT5677_AD_STEREO1_FILTER |
+ RT5677_I2S1_SOURCE,
+ RT5677_CLK_SEL_I2S1_ASRC);
+ /*
+ * Enable codec ASRC function for Mono ADC L.
+ * The ASRC clock source is clk_sys2_asrc.
+ */
+ rt5677_sel_asrc_clk_src(component, RT5677_AD_MONO_L_FILTER, RT5677_CLK_SEL_SYS2);
+
+ ctx->gpio_spk_en1 = devm_gpiod_get(component->dev, "speaker-enable", GPIOD_OUT_LOW);
+ if (IS_ERR(ctx->gpio_spk_en1)) {
+ dev_err(component->dev, "Can't find speaker enable GPIO\n");
+ return PTR_ERR(ctx->gpio_spk_en1);
+ }
+
+ ctx->gpio_spk_en2 = devm_gpiod_get(component->dev, "speaker-enable2", GPIOD_OUT_LOW);
+ if (IS_ERR(ctx->gpio_spk_en2)) {
+ dev_err(component->dev, "Can't find speaker enable 2 GPIO\n");
+ return PTR_ERR(ctx->gpio_spk_en2);
+ }
+
+ ctx->gpio_hp_en = devm_gpiod_get(component->dev, "headphone-enable", GPIOD_OUT_LOW);
+ if (IS_ERR(ctx->gpio_hp_en)) {
+ dev_err(component->dev, "Can't find headphone enable GPIO\n");
+ return PTR_ERR(ctx->gpio_hp_en);
+ }
+
+ snd_soc_jack_notifier_register(jack, &ctx->jack_nb);
+
+ if (ctx->mclk) {
+ /*
+ * The firmware might enable the clock at
+ * boot (this information may or may not
+ * be reflected in the enable clock register).
+ * To change the rate we must disable the clock
+ * first to cover these cases. Due to common
+ * clock framework restrictions that do not allow
+ * to disable a clock that has not been enabled,
+ * we need to enable the clock first.
+ */
+ ret = clk_prepare_enable(ctx->mclk);
+ if (!ret)
+ clk_disable_unprepare(ctx->mclk);
+
+ ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ);
+
+ if (ret) {
+ dev_err(runtime->dev, "unable to set MCLK rate\n");
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+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);
+
+ /* The DSP will convert the FE rate to 48k, stereo, 24bits */
+ rate->min = 48000;
+ rate->max = 48000;
+ channels->min = 2;
+ channels->max = 2;
+
+ /*
+ * Configure SSP2 for the 24-bit format expected by the codec. The SST
+ * ssp2-port front end still advertises S16_LE and converts the stream.
+ */
+ params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
+
+ return 0;
+}
+
+static struct snd_soc_jack_pin cht_yb_jack_pins[] = {
+ {
+ .pin = "Headphone",
+ .mask = SND_JACK_HEADPHONE,
+ },
+ {
+ .pin = "Headset Mic",
+ .mask = SND_JACK_MICROPHONE,
+ },
+};
+
+static int cht_yb_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);
+ struct snd_soc_jack *jack = &ctx->jack;
+ int jack_type;
+ int ret;
+
+ /*
+ * TI supports four headset buttons:
+ * KEY_MEDIA
+ * KEY_VOICECOMMAND
+ * KEY_VOLUMEUP
+ * KEY_VOLUMEDOWN
+ */
+ jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
+ SND_JACK_BTN_0 | SND_JACK_BTN_1 |
+ SND_JACK_BTN_2 | SND_JACK_BTN_3;
+
+ ret = snd_soc_card_jack_new_pins(card, "Headset Jack", jack_type,
+ jack, cht_yb_jack_pins,
+ ARRAY_SIZE(cht_yb_jack_pins));
+ if (ret) {
+ dev_err(card->dev, "Headset Jack creation failed %d\n", ret);
+ return ret;
+ }
+
+ return ts3a227e_enable_jack_detect(component, jack);
+}
+
+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 const struct snd_soc_ops cht_aif1_ops = {
+ .startup = cht_aif1_startup,
+};
+
+static const struct snd_soc_ops cht_be_ssp2_ops = {
+ .hw_params = cht_aif1_hw_params,
+};
+
+static const struct snd_soc_aux_dev cht_yb_headset_dev = {
+ .dlc = COMP_AUX("i2c-ts3a227e"),
+ .init = cht_yb_headset_init,
+};
+
+SND_SOC_DAILINK_DEF(dummy, DAILINK_COMP_ARRAY(COMP_DUMMY()));
+
+SND_SOC_DAILINK_DEF(media, DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
+
+SND_SOC_DAILINK_DEF(deepbuffer, DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
+
+SND_SOC_DAILINK_DEF(ssp2_port, DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
+SND_SOC_DAILINK_DEF(ssp2_codec, DAILINK_COMP_ARRAY(COMP_CODEC(RT5677_I2C, CHT_CODEC_DAI)));
+
+SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
+
+static const struct snd_soc_dai_link cht_dailink[] = {
+ /* Front End DAI links */
+ [MERR_DPCM_AUDIO] = {
+ .name = "Audio Port",
+ .stream_name = "Audio",
+ .nonatomic = true,
+ .dynamic = 1,
+ .ops = &cht_aif1_ops,
+ SND_SOC_DAILINK_REG(media, dummy, platform),
+ },
+ [MERR_DPCM_DEEP_BUFFER] = {
+ .name = "Deep-Buffer Audio Port",
+ .stream_name = "Deep-Buffer Audio",
+ .nonatomic = true,
+ .dynamic = 1,
+ .playback_only = 1,
+ .ops = &cht_aif1_ops,
+ SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
+ },
+
+ /* Back End DAI links */
+ {
+ /* SSP2 - Codec */
+ .name = "SSP2-Codec",
+ .id = 0,
+ .no_pcm = 1,
+ .nonatomic = true,
+ .init = cht_codec_init,
+ .be_hw_params_fixup = cht_codec_fixup,
+ .ops = &cht_be_ssp2_ops,
+ SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform),
+ },
+};
+
+/* SoC card */
+static const struct snd_soc_card snd_soc_card_cht = {
+ .owner = THIS_MODULE,
+ .num_links = ARRAY_SIZE(cht_dailink),
+ .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 const struct acpi_gpio_params speaker_enable_gpio = { 2, 0, false };
+static const struct acpi_gpio_mapping cht_yb_gpios[] = {
+ { "speaker-enable-gpios", &speaker_enable_gpio, 1 },
+ { NULL }
+};
+
+#define SOF_CARD_NAME "cht yogabook"
+#define SOF_DRIVER_NAME "SOF"
+
+#define CARD_NAME "cht-yogabook"
+#define DRIVER_NAME NULL
+
+static int snd_cht_mc_probe(struct platform_device *pdev)
+{
+ struct cht_mc_private *drv;
+ struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
+ struct snd_soc_aux_dev *aux_dev;
+ struct snd_soc_dai_link_component *codecs;
+ struct snd_soc_dai_link *dai_links;
+ struct snd_soc_card *card;
+ const void *codec_template;
+ size_t codecs_size;
+ const char *platform_name;
+ struct acpi_device *adev;
+ struct device *codec_dev;
+ bool has_acpi_codec = false;
+ bool sof_parent;
+ int ret;
+ int i;
+
+ drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
+ if (!drv)
+ return -ENOMEM;
+
+ card = devm_kmemdup(&pdev->dev, &snd_soc_card_cht, sizeof(*card), GFP_KERNEL);
+ if (!card)
+ return -ENOMEM;
+
+ dai_links = devm_kmemdup(&pdev->dev, cht_dailink, sizeof(cht_dailink), GFP_KERNEL);
+ if (!dai_links)
+ return -ENOMEM;
+
+ aux_dev = devm_kmemdup(&pdev->dev, &cht_yb_headset_dev,
+ sizeof(cht_yb_headset_dev), GFP_KERNEL);
+ if (!aux_dev)
+ return -ENOMEM;
+
+ card->dai_link = dai_links;
+ card->aux_dev = aux_dev;
+ drv->jack_nb.notifier_call = cht_yb_jack_event;
+
+ strscpy(drv->codec_name, RT5677_I2C, sizeof(drv->codec_name));
+
+ /* fixup codec name based on HID if ACPI node is present */
+ adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
+ if (adev) {
+ has_acpi_codec = true;
+ snprintf(drv->codec_name, sizeof(drv->codec_name),
+ "i2c-%s", acpi_dev_name(adev));
+ dev_info(&pdev->dev, "real codec name: %s\n", drv->codec_name);
+
+ put_device(&adev->dev);
+ for (i = 0; i < card->num_links; i++) {
+ if (dai_links[i].codecs->name &&
+ !strcmp(dai_links[i].codecs->name,
+ RT5677_I2C)) {
+ codecs_size = sizeof(*codecs) * dai_links[i].num_codecs;
+ codec_template = dai_links[i].codecs;
+ codecs = devm_kmemdup(&pdev->dev, codec_template, codecs_size,
+ GFP_KERNEL);
+ if (!codecs)
+ return -ENOMEM;
+
+ codecs->name = drv->codec_name;
+ dai_links[i].codecs = codecs;
+ break;
+ }
+ }
+ }
+
+ codec_dev = bus_find_device_by_name(&i2c_bus_type, NULL,
+ drv->codec_name);
+ if (!codec_dev)
+ return -EPROBE_DEFER;
+
+ if (has_acpi_codec) {
+ ret = devm_acpi_dev_add_driver_gpios(codec_dev, cht_yb_gpios);
+ if (ret)
+ dev_warn(&pdev->dev, "Unable to add GPIO mapping table: %d\n",
+ ret);
+ }
+ put_device(codec_dev);
+
+ /* Override platform name, if required. */
+ card->dev = &pdev->dev;
+ platform_name = mach->mach_params.platform;
+
+ ret = snd_soc_fixup_dai_links_platform_name(card, platform_name);
+ if (ret) {
+ dev_err(&pdev->dev, "snd_soc_fixup_dai_links_platform_name failed: %d\n",
+ ret);
+ return ret;
+ }
+
+ drv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
+ if (IS_ERR(drv->mclk)) {
+ dev_err(&pdev->dev,
+ "Failed to get MCLK from pmc_plt_clk_3: %ld\n",
+ PTR_ERR(drv->mclk));
+ return PTR_ERR(drv->mclk);
+ }
+ snd_soc_card_set_drvdata(card, drv);
+
+ sof_parent = snd_soc_acpi_sof_parent(&pdev->dev);
+
+ /* set the card and driver name */
+ if (sof_parent) {
+ card->name = SOF_CARD_NAME;
+ card->driver_name = SOF_DRIVER_NAME;
+ } else {
+ card->name = CARD_NAME;
+ card->driver_name = DRIVER_NAME;
+ }
+
+ /* register the soc card */
+ ret = devm_snd_soc_register_card(&pdev->dev, card);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "snd_soc_register_card failed %d\n", ret);
+ return ret;
+ }
+ platform_set_drvdata(pdev, card);
+
+ return 0;
+}
+
+static struct platform_driver snd_cht_mc_driver = {
+ .driver = {
+ .name = "cht-yogabook",
+ },
+ .probe = snd_cht_mc_probe,
+};
+
+module_platform_driver(snd_cht_mc_driver);
+
+MODULE_DESCRIPTION("Lenovo Yoga Book YB1-X91 machine driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:cht-yogabook");
--
2.53.0
^ permalink raw reply [flat|nested] 7+ messages in thread