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| author | Hans de Goede <hdegoede@redhat.com> | 2023-04-29 21:02:29 +0300 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2023-05-09 12:54:42 +0300 |
| commit | d190a7786eafe17670c3a63326a8f97a4497449e (patch) | |
| tree | 700013eec45b1e8823c2322c09a7626b5884a356 /drivers/platform/x86/x86-android-tablets/lenovo.c | |
| parent | c91050661032ef91a359d537d2b99a211ee6bd10 (diff) | |
| download | linux-d190a7786eafe17670c3a63326a8f97a4497449e.tar.xz | |
platform/x86: x86-android-tablets: Fix Bluetooth on Lenovo Yoga Book
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
Diffstat (limited to 'drivers/platform/x86/x86-android-tablets/lenovo.c')
| -rw-r--r-- | drivers/platform/x86/x86-android-tablets/lenovo.c | 15 |
1 files changed, 15 insertions, 0 deletions
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, }; |