Change in coreboot[master]: mb/google/dedede/var/waddledee: Enable GPIO based I2C Multiplexer

[Karthik Ramasubramanian (Code Review)]

Hello build bot (Jenkins), Furquan Shaikh, Justin TerAvest, Evan Green, Tim Wawrzynczak,

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

https://review.coreboot.org/c/coreboot/+/45912

to look at the new patch set (#5).

Change subject: mb/google/dedede/var/waddledee: Enable GPIO based I2C Multiplexer
......................................................................

mb/google/dedede/var/waddledee: Enable GPIO based I2C Multiplexer

The camera sensor component chosen for UFC and WFC have address
conflict. Resolve it by enabling GPIO based I2C Multiplexer

BUG=b:169444894
TEST=Build and boot waddledee to OS. Ensure that the ACPI identifiers
are added for I2C devices multiplexed using I2C MUX under the
appropriate scope. Here is the output SSDT:
Scope (_SB.PCI0.I2C3)
{
    Device (MUX0)
    {
        Method (_STA, 0, NotSerialized)  // _STA: Status
        {
            Return (0x0F)
        }

Name (_CRS, ResourceTemplate ()  // _CRS: Current Resource Settings
        {
            GpioIo (Exclusive, PullDefault, 0x0000, 0x0000, IoRestrictionOutputOnly,
                 "\_SB.PCI0.GPIO", 0x00, ResourceConsumer, ,
                 )
            {   // Pin list
                0x0125
            }
        })

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 (0x04)
                    {
                        _SB.PCI0.I2C3.MUX0,
                        Zero,
                        Zero,
                        Zero
                    }
                }
            }
        })

}
}

Scope (_SB.PCI0.I2C3.MUX0)
{
    Device (MXA0)
    {
        Method (_STA, 0, NotSerialized)  // _STA: Status
        {
            Return (0x0F)
        }

Name (_ADR, Zero)  // _ADR: Address
    }
}

Scope (_SB.PCI0.I2C3.MUX0)
{
    Device (MXA1)
    {
        Method (_STA, 0, NotSerialized)  // _STA: Status
        {
            Return (0x0F)
        }

Name (_ADR, One)  // _ADR: Address
    }
}

Change-Id: I9b09e063b4377587019ade9e6e194f4aadcdd312
Signed-off-by: Karthikeyan Ramasubramanian 
---
M src/mainboard/google/dedede/Kconfig.name
M src/mainboard/google/dedede/variants/waddledee/overridetree.cb
2 files changed, 19 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/12/45912/5