[coreboot-gerrit] Change in coreboot[master]: mb/google/volteer: Enable USB4 retimer driver

[Duncan Laurie (Code Review)]

Duncan Laurie has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/44919 )

Change subject: mb/google/volteer: Enable USB4 retimer driver
......................................................................

mb/google/volteer: Enable USB4 retimer driver

Enable the USB4 retimer driver with GPP_H10 as the power control.

Signed-off-by: Duncan Laurie 
Change-Id: I166bc477f94c159bb411620a6bf77b5d1f194fb2
---
M src/mainboard/google/volteer/Kconfig
M src/mainboard/google/volteer/variants/baseboard/devicetree.cb
2 files changed, 5 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/19/44919/1

diff --git a/src/mainboard/google/volteer/Kconfig b/src/mainboard/google/volteer/Kconfig
index 4867fea..44f6738 100644
--- a/src/mainboard/google/volteer/Kconfig
+++ b/src/mainboard/google/volteer/Kconfig
@@ -8,6 +8,7 @@
    select DRIVERS_I2C_SX9310
    select DRIVERS_INTEL_DPTF
    select DRIVERS_INTEL_PMC
+	select DRIVERS_INTEL_USB4_RETIMER
    select DRIVERS_I2C_MAX98373
    select DRIVERS_INTEL_SOUNDWIRE
    select DRIVERS_SPI_ACPI
diff --git a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
index 2717acd..82e3e5a 100644
--- a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
@@ -392,6 +392,10 @@
    	device ref tbt_dma0 on
    		probe DB_USB USB4_GEN2
    		probe DB_USB USB4_GEN3
+			chip drivers/intel/usb4/retimer
+				register "power_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_H10)"
+				device generic 0 on end
+			end
    	end
    	device ref gna on end
    	device ref north_xhci on end