serial: pl011: Add ACPI SBSA UART match id

BugLink: https://bugs.launchpad.net/bugs/1956381
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@vger.kernel.org>
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Link: https://lore.kernel.org/r/20211109172248.19061-1-Pierre.Gondois@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 16720c97a4ddee0fa851e9695f76efe3ea31558e..6741d0f3daf9427537ca7dc3c13f93788c5ff13a 100644 (file)
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2770,6 +2770,7 @@ MODULE_DEVICE_TABLE(of, sbsa_uart_of_match);
 
 static const struct acpi_device_id sbsa_uart_acpi_match[] = {
        { "ARMH0011", 0 },
+       { "ARMHB000", 0 },
        {},
 };
 MODULE_DEVICE_TABLE(acpi, sbsa_uart_acpi_match);