* [PATCH v6 1/2] ASoC: Intel: Add Cherry Trail RT5677 machine driver
2026-09-01 19:04 [PATCH v6 0/2] ASoC: Intel: Add Yoga Book RT5677 support Maurizio Casciano
@ 2026-09-01 19:04 ` Maurizio Casciano
2026-09-01 19:04 ` [PATCH v6 2/2] ASoC: Intel: cht: Add Yoga Book RT5677 machine entry Maurizio Casciano
2026-09-02 8:25 ` [PATCH v6 0/2] ASoC: Intel: Add Yoga Book RT5677 support Cezary Rojewski
2 siblings, 0 replies; 5+ messages in thread
From: Maurizio Casciano @ 2026-09-01 19:04 UTC (permalink / raw)
To: broonie, linux-sound
Cc: cezary.rojewski, liam.r.girdwood, peter.ujfalusi,
yung-chuan.liao, kai.vehmanen, pierre-louis.bossart, perex,
tiwai, jekhor, linux-kernel
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 Cherry Trail RT5677 machine driver based on Yauhen Kharuzhy's
implementation. Clone the card, DAI links and link components per device
so probing never mutates global templates, and allocate jack storage with
the device lifetime. Configure MCLK and PLL, jack buttons, microphones,
and output controls.
Propagate clock, GPIO and ASRC setup failures so DAPM and probe callers do
not continue with partially configured hardware. If the second speaker
GPIO update fails, restore the first GPIO to its previous state. Reproduce
the mode-3 enable pulse and settling delay required by the external speaker
boost amplifier.
Only the SOF path has been validated, so identify the card as SOF and do
not advertise legacy SST support. The Yoga Book registered successfully
without snd_soc_fixup_dai_links_platform_name(). PCM0 playback and capture,
plus PCM1 deep-buffer playback, all passed on the device. Manual Settings
tests also confirmed audible built-in speakers and a working microphone.
Link: https://github.com/jekhor/yogabook-linux-kernel/commit/4e41d0ff72c1d1fd8d5c59dda247e4ca8a1da999
Link: https://lore.kernel.org/linux-sound/20260611-asoc-yogabook-v2-v3-3-3128447b67b6@gmail.com/
Assisted-by: Codex:gpt-5.6-sol sparse
Co-developed-by: Yauhen Kharuzhy <jekhor@gmail.com>
Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Signed-off-by: Maurizio Casciano <mauriziocasciano7@gmail.com>
---
sound/soc/intel/boards/Kconfig | 14 +
sound/soc/intel/boards/Makefile | 2 +
sound/soc/intel/boards/cht_rt5677.c | 636 ++++++++++++++++++++++++++++
3 files changed, 652 insertions(+)
create mode 100644 sound/soc/intel/boards/cht_rt5677.c
diff --git a/sound/soc/intel/boards/Kconfig b/sound/soc/intel/boards/Kconfig
index cddbd2aa424e..33b2b409f150 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_RT5677_MACH
+ tristate "Cherrytrail with RT5677 codec"
+ depends on I2C && ACPI
+ depends on X86_INTEL_LPSS || COMPILE_TEST
+ depends on GPIOLIB || COMPILE_TEST
+ select SND_SOC_ACPI
+ select SND_SOC_RT5677
+ select SND_SOC_TS3A227E
+ help
+ This adds support for Cherry Trail platforms with an RT5677 codec
+ and TS3A227E headset-jack detector. It currently supports the
+ Lenovo Yoga Book YB1-X91F/L.
+ Say Y or m if you have such a device. If unsure select "N".
+
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..28940ca02aa7 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-rt5677-y := cht_rt5677.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-$(CONFIG_SND_SOC_INTEL_CHT_RT5677_MACH) += snd-soc-sst-cht-rt5677.o
obj-$(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_rt5677.c b/sound/soc/intel/boards/cht_rt5677.c
new file mode 100644
index 000000000000..3e939b3ae4a7
--- /dev/null
+++ b/sound/soc/intel/boards/cht_rt5677.c
@@ -0,0 +1,636 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * cht_rt5677.c - ASoC machine driver for Cherry Trail with RT5677
+ *
+ * Copyright (C) 2026 Yauhen Kharuzhy <jekhor@gmail.com>
+ *
+ * Based on the mainline cht_bsw_rt5672.c driver and Lenovo's
+ * cht_bl_dpcm_rt5677.c Android driver.
+ */
+
+#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_rt5677_private {
+ char codec_name[SND_ACPI_I2C_ID_LEN];
+ struct clk *mclk;
+ struct gpio_desc *gpio_spk_en1;
+ struct gpio_desc *gpio_spk_en2;
+ struct gpio_desc *gpio_hp_en;
+};
+
+static int cht_rt5677_platform_clock_enable(struct snd_soc_card *card,
+ struct snd_soc_dai *codec_dai)
+{
+ struct cht_rt5677_private *ctx = snd_soc_card_get_drvdata(card);
+ int ret;
+
+ ret = clk_prepare_enable(ctx->mclk);
+ if (ret) {
+ dev_err(card->dev, "enabling MCLK failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_pll(codec_dai, 0, RT5677_PLL1_S_MCLK,
+ CHT_PLAT_CLK_3_HZ, 48000 * 512);
+ if (ret) {
+ dev_err(card->dev, "setting codec PLL failed: %d\n", ret);
+ goto disable_mclk;
+ }
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_PLL1,
+ 48000 * 512, SND_SOC_CLOCK_IN);
+ if (ret) {
+ dev_err(card->dev, "setting codec sysclk failed: %d\n", ret);
+ goto disable_mclk;
+ }
+
+ return 0;
+
+disable_mclk:
+ clk_disable_unprepare(ctx->mclk);
+ return ret;
+}
+
+static int cht_rt5677_platform_clock_disable(struct snd_soc_card *card,
+ struct snd_soc_dai *codec_dai)
+{
+ struct cht_rt5677_private *ctx = snd_soc_card_get_drvdata(card);
+ int ret;
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_RCCLK,
+ 48000 * 512, SND_SOC_CLOCK_IN);
+ if (ret)
+ dev_warn(card->dev, "setting codec idle sysclk failed: %d\n", ret);
+
+ clk_disable_unprepare(ctx->mclk);
+
+ return ret;
+}
+
+static int cht_rt5677_platform_clock_control(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kctl,
+ int event)
+{
+ struct snd_soc_card *card = snd_soc_dapm_to_card(w->dapm);
+ struct snd_soc_dai *codec_dai;
+
+ codec_dai = snd_soc_card_get_codec_dai(card, CHT_CODEC_DAI);
+ if (!codec_dai) {
+ dev_err(card->dev, "codec DAI not found\n");
+ return -EIO;
+ }
+
+ if (SND_SOC_DAPM_EVENT_ON(event))
+ return cht_rt5677_platform_clock_enable(card, codec_dai);
+
+ return cht_rt5677_platform_clock_disable(card, codec_dai);
+}
+
+static int cht_rt5677_hp_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kctl, int event)
+{
+ struct snd_soc_card *card = snd_soc_dapm_to_card(w->dapm);
+ struct cht_rt5677_private *ctx = snd_soc_card_get_drvdata(card);
+
+ return gpiod_set_value_cansleep(ctx->gpio_hp_en,
+ SND_SOC_DAPM_EVENT_ON(event));
+}
+
+static int cht_rt5677_spk_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kctl, int event)
+{
+ struct snd_soc_card *card = snd_soc_dapm_to_card(w->dapm);
+ struct cht_rt5677_private *ctx = snd_soc_card_get_drvdata(card);
+ bool enable = SND_SOC_DAPM_EVENT_ON(event);
+ int rollback_ret;
+ int ret;
+ int i;
+
+ /* Program the external boost amplifier for mode 3 before enabling it. */
+ if (enable) {
+ for (i = 0; i < 4; i++) {
+ ret = gpiod_set_value_cansleep(ctx->gpio_spk_en1,
+ !(i & 1));
+ if (ret)
+ goto disable_boost;
+
+ udelay(2);
+ }
+ }
+
+ ret = gpiod_set_value_cansleep(ctx->gpio_spk_en1, enable);
+ if (ret)
+ return ret;
+
+ ret = gpiod_set_value_cansleep(ctx->gpio_spk_en2, enable);
+ if (ret) {
+ rollback_ret = gpiod_set_value_cansleep(ctx->gpio_spk_en1,
+ !enable);
+ if (rollback_ret)
+ dev_warn(card->dev, "rolling back speaker GPIO failed: %d\n",
+ rollback_ret);
+ return ret;
+ }
+
+ if (enable)
+ msleep(50);
+
+ return 0;
+
+disable_boost:
+ rollback_ret = gpiod_set_value_cansleep(ctx->gpio_spk_en1, 0);
+ if (rollback_ret)
+ dev_warn(card->dev, "disabling speaker boost GPIO failed: %d\n",
+ rollback_ret);
+
+ return ret;
+}
+
+static const struct snd_soc_dapm_widget cht_rt5677_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone", cht_rt5677_hp_event),
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+ SND_SOC_DAPM_MIC("Int Mic", NULL),
+ SND_SOC_DAPM_SPK("Speaker", cht_rt5677_spk_event),
+ SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
+ cht_rt5677_platform_clock_control,
+ SND_SOC_DAPM_PRE_PMU |
+ SND_SOC_DAPM_POST_PMD),
+};
+
+static const struct snd_soc_dapm_route cht_rt5677_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_rt5677_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_rt5677_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;
+
+ ret = snd_soc_dai_set_pll(codec_dai, 0, RT5677_PLL1_S_MCLK,
+ CHT_PLAT_CLK_3_HZ, params_rate(params) * 512);
+ if (ret) {
+ dev_err(rtd->dev, "setting codec PLL failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_PLL1,
+ params_rate(params) * 512,
+ SND_SOC_CLOCK_IN);
+ if (ret) {
+ dev_err(rtd->dev, "setting codec sysclk failed: %d\n", ret);
+ return ret;
+ }
+
+ 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) {
+ dev_err(codec_dai->dev, "setting TDM format failed: %d\n", ret);
+ return ret;
+ }
+
+ /* Four 25-bit DSP_B slots carry 24-bit samples; the codec uses slots 0 and 1. */
+ ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 0x3, 4, 25);
+ if (ret) {
+ dev_err(rtd->dev, "setting codec TDM slots failed: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int cht_rt5677_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_rt5677_private *ctx = snd_soc_card_get_drvdata(runtime->card);
+ int ret;
+
+ /*
+ * The codec derives its asynchronous sample-rate conversion clocks from
+ * I2S1 while the SSP link runs from the Cherry Trail platform clock.
+ */
+ ret = rt5677_sel_asrc_clk_src(component, RT5677_DA_STEREO_FILTER |
+ RT5677_AD_STEREO1_FILTER |
+ RT5677_I2S1_SOURCE,
+ RT5677_CLK_SEL_I2S1_ASRC);
+ if (ret) {
+ dev_err(runtime->dev, "setting stereo ASRC clock failed: %d\n", ret);
+ return ret;
+ }
+
+ /* Mono ADC L uses the codec system clock rather than the I2S1 clock. */
+ ret = rt5677_sel_asrc_clk_src(component, RT5677_AD_MONO_L_FILTER, RT5677_CLK_SEL_SYS2);
+ if (ret) {
+ dev_err(runtime->dev, "setting mono ASRC clock failed: %d\n", ret);
+ return ret;
+ }
+
+ /* Firmware may leave MCLK enabled without updating the CCF count. */
+ ret = clk_prepare_enable(ctx->mclk);
+ if (ret) {
+ dev_err(runtime->dev, "preparing MCLK failed: %d\n", ret);
+ return ret;
+ }
+ clk_disable_unprepare(ctx->mclk);
+
+ ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ);
+ if (ret) {
+ dev_err(runtime->dev, "setting MCLK rate failed: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int cht_rt5677_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
+ * ssp2-port front end still advertises S16_LE and converts the stream.
+ */
+ snd_mask_none(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT));
+ params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
+
+ return 0;
+}
+
+static struct snd_soc_jack_pin cht_rt5677_jack_pins[] = {
+ {
+ .pin = "Headphone",
+ .mask = SND_JACK_HEADPHONE,
+ },
+ {
+ .pin = "Headset Mic",
+ .mask = SND_JACK_MICROPHONE,
+ },
+};
+
+static int cht_rt5677_headset_init(struct snd_soc_component *component)
+{
+ struct snd_soc_card *card = component->card;
+ struct snd_soc_jack *jack;
+ int jack_type;
+ int ret;
+
+ jack = devm_kzalloc(card->dev, sizeof(*jack), GFP_KERNEL);
+ if (!jack)
+ return -ENOMEM;
+
+ /*
+ * 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_rt5677_jack_pins,
+ ARRAY_SIZE(cht_rt5677_jack_pins));
+ if (ret) {
+ dev_err(card->dev, "creating headset jack failed: %d\n", ret);
+ return ret;
+ }
+
+ return ts3a227e_enable_jack_detect(component, jack);
+}
+
+static int cht_rt5677_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_rt5677_aif1_ops = {
+ .startup = cht_rt5677_aif1_startup,
+};
+
+static const struct snd_soc_ops cht_rt5677_be_ssp2_ops = {
+ .hw_params = cht_rt5677_aif1_hw_params,
+};
+
+static const struct snd_soc_aux_dev cht_rt5677_headset_dev = {
+ .dlc = COMP_AUX("i2c-ts3a227e"),
+ .init = cht_rt5677_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_rt5677_dailink[] = {
+ /* Front End DAI links */
+ [MERR_DPCM_AUDIO] = {
+ .name = "Audio Port",
+ .stream_name = "Audio",
+ .nonatomic = true,
+ .dynamic = 1,
+ .ops = &cht_rt5677_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_rt5677_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_rt5677_codec_init,
+ .be_hw_params_fixup = cht_rt5677_codec_fixup,
+ .ops = &cht_rt5677_be_ssp2_ops,
+ SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform),
+ },
+};
+
+static const struct snd_soc_card cht_rt5677_card = {
+ .owner = THIS_MODULE,
+ .num_links = ARRAY_SIZE(cht_rt5677_dailink),
+ .num_aux_devs = 1,
+ .dapm_widgets = cht_rt5677_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(cht_rt5677_widgets),
+ .dapm_routes = cht_rt5677_map,
+ .num_dapm_routes = ARRAY_SIZE(cht_rt5677_map),
+ .controls = cht_rt5677_controls,
+ .num_controls = ARRAY_SIZE(cht_rt5677_controls),
+};
+
+static const struct acpi_gpio_params speaker_enable_gpio = { 2, 0, false };
+static const struct acpi_gpio_mapping cht_rt5677_gpios[] = {
+ { "speaker-enable-gpios", &speaker_enable_gpio, 1 },
+ { }
+};
+
+#define CARD_NAME "cht yogabook"
+#define DRIVER_NAME "SOF"
+
+static void cht_rt5677_gpiod_put(void *data)
+{
+ gpiod_put(data);
+}
+
+static void cht_rt5677_remove_driver_gpios(void *data)
+{
+ acpi_dev_remove_driver_gpios(data);
+}
+
+static int cht_rt5677_get_gpio(struct device *dev, struct device *codec_dev,
+ const char *con_id, struct gpio_desc **gpio)
+{
+ int ret;
+
+ *gpio = gpiod_get(codec_dev, con_id, GPIOD_OUT_LOW);
+ if (IS_ERR(*gpio)) {
+ ret = PTR_ERR(*gpio);
+ return dev_err_probe(dev, ret, "getting %s GPIO failed\n", con_id);
+ }
+
+ ret = devm_add_action_or_reset(dev, cht_rt5677_gpiod_put, *gpio);
+ if (ret)
+ return dev_err_probe(dev, ret, "registering %s GPIO cleanup failed\n",
+ con_id);
+
+ return 0;
+}
+
+static int cht_rt5677_clone_dai_links(struct device *dev, struct snd_soc_card *card)
+{
+ struct snd_soc_dai_link_component *components;
+ struct snd_soc_dai_link *links;
+ size_t size;
+ int i;
+
+ links = devm_kmemdup(dev, cht_rt5677_dailink,
+ sizeof(cht_rt5677_dailink), GFP_KERNEL);
+ if (!links)
+ return -ENOMEM;
+
+ for (i = 0; i < ARRAY_SIZE(cht_rt5677_dailink); i++) {
+ if (links[i].num_cpus) {
+ size = sizeof(*components) * links[i].num_cpus;
+ components = devm_kmemdup(dev, links[i].cpus, size, GFP_KERNEL);
+ if (!components)
+ return -ENOMEM;
+ links[i].cpus = components;
+ }
+
+ if (links[i].num_codecs) {
+ size = sizeof(*components) * links[i].num_codecs;
+ components = devm_kmemdup(dev, links[i].codecs, size, GFP_KERNEL);
+ if (!components)
+ return -ENOMEM;
+ links[i].codecs = components;
+ }
+
+ if (links[i].num_platforms) {
+ size = sizeof(*components) * links[i].num_platforms;
+ components = devm_kmemdup(dev, links[i].platforms, size, GFP_KERNEL);
+ if (!components)
+ return -ENOMEM;
+ links[i].platforms = components;
+ }
+ }
+
+ card->dai_link = links;
+ return 0;
+}
+
+static int snd_cht_rt5677_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct cht_rt5677_private *ctx;
+ struct snd_soc_acpi_mach *mach = dev_get_platdata(dev);
+ struct snd_soc_aux_dev *aux_dev;
+ struct snd_soc_dai_link *dai_links;
+ struct snd_soc_card *card;
+ struct acpi_device *adev;
+ struct device *codec_dev;
+ int ret;
+ int i;
+
+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ card = devm_kmemdup(dev, &cht_rt5677_card, sizeof(*card), GFP_KERNEL);
+ if (!card)
+ return -ENOMEM;
+
+ ret = cht_rt5677_clone_dai_links(dev, card);
+ if (ret)
+ return ret;
+ dai_links = card->dai_link;
+
+ aux_dev = devm_kmemdup(dev, &cht_rt5677_headset_dev,
+ sizeof(cht_rt5677_headset_dev), GFP_KERNEL);
+ if (!aux_dev)
+ return -ENOMEM;
+
+ card->aux_dev = aux_dev;
+
+ strscpy(ctx->codec_name, RT5677_I2C, sizeof(ctx->codec_name));
+
+ /* Use the ACPI-enumerated codec name when firmware describes the codec. */
+ adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
+ if (adev) {
+ snprintf(ctx->codec_name, sizeof(ctx->codec_name),
+ "i2c-%s", acpi_dev_name(adev));
+
+ acpi_dev_put(adev);
+ for (i = 0; i < card->num_links; i++) {
+ if (dai_links[i].codecs->name &&
+ !strcmp(dai_links[i].codecs->name,
+ RT5677_I2C)) {
+ dai_links[i].codecs->name = ctx->codec_name;
+ break;
+ }
+ }
+ }
+
+ codec_dev = bus_find_device_by_name(&i2c_bus_type, NULL,
+ ctx->codec_name);
+ if (!codec_dev)
+ return dev_err_probe(dev, -EPROBE_DEFER,
+ "waiting for codec %s\n", ctx->codec_name);
+
+ adev = ACPI_COMPANION(codec_dev);
+ if (adev) {
+ ret = acpi_dev_add_driver_gpios(adev, cht_rt5677_gpios);
+ if (ret) {
+ dev_err_probe(dev, ret, "adding codec GPIO mappings failed\n");
+ goto out_put_codec;
+ }
+
+ ret = devm_add_action_or_reset(dev, cht_rt5677_remove_driver_gpios, adev);
+ if (ret) {
+ dev_err_probe(dev, ret, "registering GPIO mapping cleanup failed\n");
+ goto out_put_codec;
+ }
+ }
+
+ ret = cht_rt5677_get_gpio(dev, codec_dev, "speaker-enable", &ctx->gpio_spk_en1);
+ if (ret)
+ goto out_put_codec;
+
+ ret = cht_rt5677_get_gpio(dev, codec_dev, "speaker-enable2", &ctx->gpio_spk_en2);
+ if (ret)
+ goto out_put_codec;
+
+ ret = cht_rt5677_get_gpio(dev, codec_dev, "headphone-enable", &ctx->gpio_hp_en);
+ if (ret)
+ goto out_put_codec;
+
+ put_device(codec_dev);
+
+ card->dev = dev;
+
+ ctx->mclk = devm_clk_get(dev, "pmc_plt_clk_3");
+ if (IS_ERR(ctx->mclk))
+ return dev_err_probe(dev, PTR_ERR(ctx->mclk), "getting MCLK failed\n");
+
+ snd_soc_card_set_drvdata(card, ctx);
+
+ card->name = CARD_NAME;
+ card->driver_name = DRIVER_NAME;
+
+ ret = devm_snd_soc_register_card(dev, card);
+ if (ret)
+ return dev_err_probe(dev, ret, "registering sound card failed\n");
+
+ return 0;
+
+out_put_codec:
+ put_device(codec_dev);
+ return ret;
+}
+
+static struct platform_driver snd_cht_rt5677_driver = {
+ .driver = {
+ .name = "cht-rt5677",
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = snd_cht_rt5677_probe,
+};
+
+module_platform_driver(snd_cht_rt5677_driver);
+
+MODULE_DESCRIPTION("Cherry Trail RT5677 machine driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:cht-rt5677");
--
2.53.0
^ permalink raw reply [flat|nested] 5+ messages in thread