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serial: pl011: Add ACPI SBSA UART match id

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commit ac442a077a 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>
This commit is contained in:
Pierre Gondois 2021-11-09 17:22:48 +00:00 committed by Greg Kroah-Hartman
parent 946ded2287
commit 901f7e0aa4
1 changed files with 1 additions and 0 deletions
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1
drivers/tty/serial/amba-pl011.c
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@ -2791,6 +2791,7 @@ MODULE_DEVICE_TABLE(of, sbsa_uart_of_match);
static const struct acpi_device_id sbsa_uart_acpi_match[] = { static const struct acpi_device_id sbsa_uart_acpi_match[] = {
{ "ARMH0011", 0 }, { "ARMH0011", 0 },
{ "ARMHB000", 0 },
{}, {},
}; };
MODULE_DEVICE_TABLE(acpi, sbsa_uart_acpi_match); MODULE_DEVICE_TABLE(acpi, sbsa_uart_acpi_match);