On Fri, Jun 25, 2021 at 7:18 PM Marcin Wojtas <mw@xxxxxxxxxxxx> wrote: > > Hi, > > pon., 21 cze 2021 o 22:06 Marcin Wojtas <mw@xxxxxxxxxxxx> napisał(a): > > > > Apologies for the patch prefix, of course it's a first version and > > unrelated to the networking subsystem. > > > > Best regards, > > Marcin > > > > > > pon., 21 cze 2021 o 22:05 Marcin Wojtas <mw@xxxxxxxxxxxx> napisał(a): > > > > > > The Microsoft Debug Port Table 2 (DBG2) specification revision > > > May 31, 2017 adds support for 16550-compatible Serial Port > > > Subtype with parameters defined in Generic Address Structure (GAS) [1] > > > > > > Add its support in SPCR parsing routine. > > > > > > [1] https://docs.microsoft.com/en-us/windows-hardware/drivers/bringup/acpi-debug-port-table > > > > > > Signed-off-by: Marcin Wojtas <mw@xxxxxxxxxxxx> > > > --- > > > include/acpi/actbl1.h | 1 + > > > drivers/acpi/spcr.c | 1 + > > > 2 files changed, 2 insertions(+) > > > > > > diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h > > > index ce59903c2695..f746012eba8d 100644 > > > --- a/include/acpi/actbl1.h > > > +++ b/include/acpi/actbl1.h > > > @@ -498,6 +498,7 @@ struct acpi_dbg2_device { > > > #define ACPI_DBG2_ARM_SBSA_GENERIC 0x000E > > > #define ACPI_DBG2_ARM_DCC 0x000F > > > #define ACPI_DBG2_BCM2835 0x0010 > > > +#define ACPI_DBG2_16550_WITH_GAS 0x0012 > > > > > > #define ACPI_DBG2_1394_STANDARD 0x0000 > > > > > > 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: > > > -- > > Do you have any comments / remarks to the patch? Yes, I do, but I will get back to you next week. Thanks!
