Commit d190a778 authored by Hans de Goede's avatar Hans de Goede
Browse files

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: default avatarHans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230429180230.97716-1-hdegoede@redhat.com
parent c9105066

drivers/platform/x86/x86-android-tablets/lenovo.c

+15 −0
Original line number Diff line number Diff line
@@ -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,

};