[coreboot-gerrit] Change in coreboot[master]: acpi/device: Add GPIO binding property for an array of GPIOs

[Karthik Ramasubramanian (Code Review)]

Hello build bot (Jenkins), Furquan Shaikh, Duncan Laurie, Tim Wawrzynczak,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/46056

to look at the new patch set (#2).

Change subject: acpi/device: Add GPIO binding property for an array of GPIOs
......................................................................

acpi/device: Add GPIO binding property for an array of GPIOs

This change is required for use-cases like GPIO based I2C multiplexer
where more than one GPIOs are used as select lines.

BUG=b:169444894
TEST=Build and boot waddledee to OS. Ensure that the GPIO bindings for
an array of GPIOs are added to the ACPI table as follows:
Device (MUX0)
{
    ...
    Name (_CRS, ResourceTemplate ()  // _CRS: Current Resource Settings
    {
        GpioIo (Exclusive, PullDefault, 0x0000, 0x0000, IoRestrictionOutputOnly,
                "\_SB.PCI0.GPIO", 0x00, ResourceConsumer, ,
                )
        {   // Pin list
            0x0125
        }
        GpioIo (Exclusive, PullDefault, 0x0000, 0x0000, IoRestrictionOutputOnly,
                "\_SB.PCI0.GPIO", 0x00, ResourceConsumer, ,
                )
        {   // Pin list
            0x0126
        }
    })
    Name (_DSD, Package (0x02)  // _DSD: Device-Specific Data
    {
        ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301") /* Device Properties for _DSD */,
                Package (0x01)
        {
            Package (0x02)
            {
                "mux-gpios",
                Package (0x08)
                {
                    _SB.PCI0.I2C3.MUX0,
                    Zero,
                    Zero,
                    Zero,
                    _SB.PCI0.I2C3.MUX0,
                    One,
                    Zero,
                    Zero
                }
            }
        }
    })
}

Change-Id: I7c6cc36b1bfca2d48c84f169e6b43fd4be8ba330
Signed-off-by: Karthikeyan Ramasubramanian 
---
M src/acpi/device.c
M src/include/acpi/acpi_device.h
2 files changed, 57 insertions(+), 22 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/56/46056/2