Re: [PATCH 2/2] ACPI: SPCR: Add support for the new 16550-compatible Serial Port Subtype
From: "Rafael J. Wysocki" <rafael@kernel.org>
Date: 2021-08-16 16:39:46
Also in:
lkml
On Wed, Jul 14, 2021 at 11:46 PM Marcin Wojtas [off-list ref] wrote:
quoted hunk ↗ jump to hunk
The Microsoft Debug Port Table 2 (DBG2) specification revision May 31, 2017 added definition of the 16550-compatible Serial Port Subtype with parameters defined in Generic Address Structure (GAS) [1] Add its support in the SPCR table parsing routine. [1] https://docs.microsoft.com/en-us/windows-hardware/drivers/bringup/acpi-debug-port-table Signed-off-by: Marcin Wojtas <redacted> --- drivers/acpi/spcr.c | 1 + 1 file changed, 1 insertion(+)diff --git a/drivers/acpi/spcr.c b/drivers/acpi/spcr.c index 88460bacd5ae..25c2d0be953e 100644 --- a/drivers/acpi/spcr.c +++ b/drivers/acpi/spcr.c@@ -136,6 +136,7 @@ int __init acpi_parse_spcr(bool enable_earlycon, bool enable_console) break; case ACPI_DBG2_16550_COMPATIBLE: case ACPI_DBG2_16550_SUBSET: + case ACPI_DBG2_16550_WITH_GAS: uart = "uart"; break; default: --
Applied as 5.15 material, thanks!