From: Pierre Gondois Date: Tue, 9 Nov 2021 17:22:48 +0000 (+0000) Subject: serial: pl011: Add ACPI SBSA UART match id X-Git-Tag: v4.4.294~1 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d0a5c79fe2417180be3c1720c6d0f881a0aad694;p=thirdparty%2Fkernel%2Fstable.git serial: pl011: Add ACPI SBSA UART match id 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: Signed-off-by: Pierre Gondois Link: https://lore.kernel.org/r/20211109172248.19061-1-Pierre.Gondois@arm.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 562f2a40e083c..ecace294dc7e6 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -2493,6 +2493,7 @@ 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);