[PATCH v1 2/2] platform: x86-android-tablets: lenovo: Add Yoga Book YB1 sound card info
From: Yauhen Kharuzhy
Date: Tue Feb 17 2026 - 18:37:23 EST
Define I2C devices, their properties, and GPIO lookup tables for the Yoga
Book YB1-X90 sound codec and jack detection IC. The YB1-X90 doesn't have a
valid codec entry in the DSDT, while the YB1-X91 does.
The YB1-X91 includes additional information in the ACPI _CRS method
regarding the jack detection IC connection, but it is also defined in this
driver to simplify the unification of the sound driver for both tablet
versions.
Signed-off-by: Yauhen Kharuzhy <jekhor@xxxxxxxxx>
---
.../platform/x86/x86-android-tablets/lenovo.c | 127 ++++++++++++++++++
1 file changed, 127 insertions(+)
diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index 926a5e292c4f..485b5ec414ee 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -140,6 +140,43 @@ static const struct software_node lenovo_yb1_x9x_drv2604l_1_node = {
.properties = lenovo_yb1_x9x_drv2604l_1_props,
};
+static const struct software_node lenovo_yb1_rt5677_gpiochip_node = {
+ .name = "rt5677",
+};
+
+/*
+ * Certain properties are used by the cht_yogabook sound platform driver. The sound
+ * configuration is defined as the RT5677 ACPI entry on YB1-X91; hence, the same
+ * approach is utilized for YB1-X90 as well.
+ */
+static const struct property_entry lenovo_yb1_x9x_rt5677_props[] = {
+ PROPERTY_ENTRY_BOOL("realtek,lout1-differential"),
+ PROPERTY_ENTRY_BOOL("realtek,lout2-differential"),
+ PROPERTY_ENTRY_BOOL("realtek,lout3-differential"),
+ PROPERTY_ENTRY_BOOL("realtek,in1-differential"),
+ PROPERTY_ENTRY_BOOL("realtek,in2-differential"),
+ PROPERTY_ENTRY_GPIO("realtek,reset-gpios", &cherryview_gpiochip_nodes[3], 25, GPIO_ACTIVE_LOW),
+ PROPERTY_ENTRY_GPIO("realtek,pow-ldo2-gpios", &cherryview_gpiochip_nodes[3], 18, GPIO_ACTIVE_HIGH),
+ PROPERTY_ENTRY_GPIO("speaker-enable-gpios", &cherryview_gpiochip_nodes[3], 48, GPIO_ACTIVE_HIGH),
+ PROPERTY_ENTRY_GPIO("speaker-enable2-gpios", &lenovo_yb1_rt5677_gpiochip_node, 2, GPIO_ACTIVE_HIGH),
+ PROPERTY_ENTRY_GPIO("headphone-enable-gpios", &lenovo_yb1_rt5677_gpiochip_node, 4, GPIO_ACTIVE_HIGH),
+ {}
+};
+
+static const struct software_node lenovo_yb1_x90_rt5677_node = {
+ .properties = lenovo_yb1_x9x_rt5677_props,
+};
+
+static const struct property_entry lenovo_yb1_ts3a227e_props[] = {
+ /* Got from Lenovo Android kernel code drop */
+ PROPERTY_ENTRY_U32("ti,micbias", 7),
+ {}
+};
+
+static const struct software_node lenovo_yb1_ts3a227e_node = {
+ .properties = lenovo_yb1_ts3a227e_props,
+};
+
static const struct x86_i2c_client_info lenovo_yb1_x90_i2c_clients[] __initconst = {
{
/* BQ27542 fuel-gauge */
@@ -229,6 +266,40 @@ static const struct x86_i2c_client_info lenovo_yb1_x90_i2c_clients[] __initconst
.polarity = ACPI_ACTIVE_LOW,
.con_id = "hideep_ts_irq",
},
+ }, {
+ /* Audio codec */
+ .board_info = {
+ .type = "rt5677",
+ .addr = 0x2c,
+ .dev_name = "rt5677",
+ .swnode = &lenovo_yb1_x90_rt5677_node,
+ },
+ .adapter_path = "\\_SB_.PCI0.I2C1",
+ .irq_data = {
+ .type = X86_ACPI_IRQ_TYPE_GPIOINT,
+ .chip = "INT33FF:00",
+ .index = 91,
+ .trigger = ACPI_EDGE_SENSITIVE,
+ .polarity = ACPI_ACTIVE_LOW,
+ .con_id = "rt5677_irq",
+ },
+ }, {
+ /* Audio jack detection IC */
+ .board_info = {
+ .type = "ts3a227e",
+ .addr = 0x3b,
+ .dev_name = "ts3a227e",
+ .swnode = &lenovo_yb1_ts3a227e_node,
+ },
+ .adapter_path = "\\_SB_.PCI0.I2C1",
+ .irq_data = {
+ .type = X86_ACPI_IRQ_TYPE_GPIOINT,
+ .chip = "INT33FF:00",
+ .index = 77,
+ .trigger = ACPI_EDGE_SENSITIVE,
+ .polarity = ACPI_ACTIVE_LOW,
+ .con_id = "ts3a227e_irq",
+ },
},
};
@@ -282,6 +353,11 @@ static const struct software_node *lenovo_yb1_x90_lid_swnodes[] = {
NULL
};
+static const struct software_node *lenovo_yb1_x90_swnodes[] = {
+ &lenovo_yb1_rt5677_gpiochip_node,
+ NULL
+};
+
static int __init lenovo_yb1_x90_init(struct device *dev)
{
/* Enable the regulators used by the touchscreens */
@@ -309,6 +385,7 @@ const struct x86_dev_info lenovo_yogabook_x90_info __initconst = {
.serdev_info = lenovo_yb1_x90_serdevs,
.serdev_count = ARRAY_SIZE(lenovo_yb1_x90_serdevs),
.gpio_button_swnodes = lenovo_yb1_x90_lid_swnodes,
+ .swnode_group = lenovo_yb1_x90_swnodes,
.gpiochip_type = X86_GPIOCHIP_CHERRYVIEW,
.init = lenovo_yb1_x90_init,
};
@@ -325,14 +402,38 @@ static const struct x86_i2c_client_info lenovo_yogabook_x91_i2c_clients[] __init
},
.adapter_path = "\\_SB_.PCI0.I2C1",
},
+ {
+ /* Audio jack detection IC. Its configuration (I2C address and
+ * IRQ) is defined as additional resources in RTEK (10EC5677)
+ * ACPI node but define them here to simplify handling in
+ * the driver
+ */
+ .board_info = {
+ .type = "ts3a227e",
+ .addr = 0x3b,
+ .dev_name = "ts3a227e",
+ .swnode = &lenovo_yb1_ts3a227e_node,
+ },
+ .adapter_path = "\\_SB_.PCI0.I2C1",
+ .irq_data = {
+ .type = X86_ACPI_IRQ_TYPE_GPIOINT,
+ .chip = "INT33FF:00",
+ .index = 77,
+ .trigger = ACPI_EDGE_SENSITIVE,
+ .polarity = ACPI_ACTIVE_LOW,
+ .con_id = "ts3a227e_irq",
+ },
+ },
};
#define YB1_X91_DRV2604L_0_DEVICE "i2c-DRV2604:00"
#define YB1_X91_DRV2604L_1_DEVICE "i2c-DRV2604:01"
+#define YB1_X91_RT5677_DEVICE "i2c-10EC5677:00"
static int __init lenovo_yb1_x91_init(struct device *dev)
{
struct device *drv2604l_0_dev = NULL, *drv2604l_1_dev = NULL;
+ struct device *rt5677_dev = NULL;
int ret = 0;
drv2604l_0_dev = bus_find_device_by_name(&i2c_bus_type, NULL,
@@ -369,6 +470,26 @@ static int __init lenovo_yb1_x91_init(struct device *dev)
goto put_drv2604l_1;
}
+ rt5677_dev = bus_find_device_by_name(&i2c_bus_type, NULL,
+ YB1_X91_RT5677_DEVICE);
+ if (!rt5677_dev) {
+ pr_err("error: cannot find %s device\n",
+ YB1_X91_RT5677_DEVICE);
+ ret = -ENODEV;
+ goto put_rt5677;
+ }
+
+ ret = device_create_managed_software_node(rt5677_dev,
+ lenovo_yb1_x9x_rt5677_props, NULL);
+ if (ret) {
+ pr_err("error: cannot create software node for %s\n",
+ YB1_X91_RT5677_DEVICE);
+ ret = -EINVAL;
+ goto put_rt5677;
+ }
+
+put_rt5677:
+ put_device(rt5677_dev);
put_drv2604l_0:
put_device(drv2604l_0_dev);
put_drv2604l_1:
@@ -377,9 +498,15 @@ static int __init lenovo_yb1_x91_init(struct device *dev)
return ret;
}
+static const struct software_node *lenovo_yb1_x91_swnodes[] = {
+ &lenovo_yb1_rt5677_gpiochip_node,
+ NULL
+};
+
const struct x86_dev_info lenovo_yogabook_x91_info __initconst = {
.i2c_client_info = lenovo_yogabook_x91_i2c_clients,
.i2c_client_count = ARRAY_SIZE(lenovo_yogabook_x91_i2c_clients),
+ .swnode_group = lenovo_yb1_x91_swnodes,
.gpiochip_type = X86_GPIOCHIP_CHERRYVIEW,
.init = lenovo_yb1_x91_init,
};
--
2.51.0