From: Pierre Gondois <Pierre.Gondois@xxxxxxx> commit ac442a077acf9a6bf1db4320ec0c3f303be092b3 upstream. The document 'ACPI for Arm Components 1.0' defines the following _HID mappings: -'Prime cell UART (PL011)': ARMH0011 -'SBSA UART': ARMHB000 Use the sbsa-uart driver when a device is described with the 'ARMHB000' _HID. Note: PL011 devices currently use the sbsa-uart driver instead of the uart-pl011 driver. Indeed, PL011 devices are not bound to a clock in ACPI. It is not possible to change their baudrate. Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Pierre Gondois <Pierre.Gondois@xxxxxxx> Link: https://lore.kernel.org/r/20211109172248.19061-1-Pierre.Gondois@xxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/tty/serial/amba-pl011.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -2790,6 +2790,7 @@ MODULE_DEVICE_TABLE(of, sbsa_uart_of_mat static const struct acpi_device_id sbsa_uart_acpi_match[] = { { "ARMH0011", 0 }, + { "ARMHB000", 0 }, {}, }; MODULE_DEVICE_TABLE(acpi, sbsa_uart_acpi_match);
