Commit 2aaea6a1 authored by Marcin Wojtas's avatar Marcin Wojtas Committed by Rafael J. Wysocki
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ACPI: SPCR: Add support for the new 16550-compatible Serial Port Subtype 

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: default avatarMarcin Wojtas <mw@semihalf.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 7c60610d

drivers/acpi/spcr.c

+1 −0
Original line number Diff line number Diff line
@@ -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: