iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

platform/x86: x86-android-tablets: Fix Bluetooth on Lenovo Yoga Book

Browse Source 
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@redhat.com>
Link: https://lore.kernel.org/r/20230429180230.97716-1-hdegoede@redhat.com
This commit is contained in:
Hans de Goede 2023-04-29 20:02:29 +02:00
parent c910506610
commit d190a7786e
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/platform/x86/x86-android-tablets/lenovo.c
View File

@ -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,
};