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| author | Marcin Wojtas <mw@semihalf.com> | 2021-07-14 23:43:46 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-08-16 18:38:08 +0200 |
| commit | 2aaea6a1647e887fe91ce3e0324e6be4362e5388 (patch) | |
| tree | 556b18f34e3fcb0fef4b3874c249739f717eef61 /drivers/acpi | |
| parent | Linux 5.14-rc6 (diff) | |
| download | linux-2aaea6a1647e887fe91ce3e0324e6be4362e5388.tar.xz linux-2aaea6a1647e887fe91ce3e0324e6be4362e5388.zip | |
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: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/spcr.c | 1 |
1 files changed, 1 insertions, 0 deletions
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: |