patch "serial: pl011: Add ACPI SBSA UART match id" added to tty-linus
This is a note to let you know that I've just added the patch titled
serial: pl011: Add ACPI SBSA UART match id
to my tty git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git
in the tty-linus branch.
The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.
If you have any questions about this process, please let me know.
From ac442a077acf9a6bf1db4320ec0c3f303be092b3 Mon Sep 17 00:00:00 2001
From: Pierre Gondois <[email protected]>
Date: Tue, 9 Nov 2021 17:22:48 +0000
Subject: serial: pl011: Add ACPI SBSA UART match id
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.
--- drivers/tty/serial/amba-pl011.c | 1 + 1 file changed, 1 insertion(+)
drivers/tty/serial/amba-pl011.c +1 -0
@@ -2947,6 +2947,7 @@ MODULE_DEVICE_TABLE(of, sbsa_uart_of_match);static const struct acpi_device_id __maybe_unused sbsa_uart_acpi_match[] = { {"ARMH0011" ,0 }, + {"ARMHB000" ,0 }, {}, };MODULE_DEVICE_TABLE (acpi, sbsa_uart_acpi_match);
Signature · 1 line
2.34.0