The Lenovo Yoga Book yb1-x90f/l has (another) bug in its DSDT where
the UART resource for the BTH0 ACPI device contains
"\\_SB.PCIO.URT1" as path to the UART.
Note that is with a letter 'O' instead of the number '0' which is wrong.
Add a x86_serdev_info entry to make the x86-android-tablets module
manually setup the /sys/bus/serial device for the Bluetooth UART
to fix Bluetooth not working due to this bug.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
drivers/platform/x86/x86-android-tablets/lenovo.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index 0297b4c43d3b..270c4712fa7c 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -147,6 +147,19 @@ static const struct platform_device_info lenovo_yb1_x90_pdevs[] __initconst = {
},
};
+/*
+ * DSDT says UART path is "\\_SB.PCIO.URT1" with a letter 'O' instead of
+ * the number '0' add the link manually.
+ */
+static const struct x86_serdev_info lenovo_yb1_x90_serdevs[] __initconst = {
+ {
+ .ctrl_hid = "8086228A",
+ .ctrl_uid = "1",
+ .ctrl_devname = "serial0",
+ .serdev_hid = "BCM2E1A",
+ },
+};
+
static struct gpiod_lookup_table lenovo_yb1_x90_goodix_gpios = {
.dev_id = "i2c-goodix_ts",
.table = {
@@ -203,6 +216,8 @@ const struct x86_dev_info lenovo_yogabook_x90_info __initconst = {
.i2c_client_count = ARRAY_SIZE(lenovo_yb1_x90_i2c_clients),
.pdev_info = lenovo_yb1_x90_pdevs,
.pdev_count = ARRAY_SIZE(lenovo_yb1_x90_pdevs),
+ .serdev_info = lenovo_yb1_x90_serdevs,
+ .serdev_count = ARRAY_SIZE(lenovo_yb1_x90_serdevs),
.gpiod_lookup_tables = lenovo_yb1_x90_gpios,
.init = lenovo_yb1_x90_init,
};
--
2.39.2
