[coreboot-gerrit] [S] Change in coreboot[master]: mb/google/rex: add fwconfig for touchscreen using SPI

[Eran Mitrani (Code Review)]

Eran Mitrani has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/74888 )

Change subject: mb/google/rex: add fwconfig for touchscreen using SPI
......................................................................

mb/google/rex: add fwconfig for touchscreen using SPI

TEST=Waiting for hardware to be available
BUG=b:278783755

Signed-off-by: Eran Mitrani 
Change-Id: I7099cde14cff90ad63e9164769f9913a8284a805
---
M src/mainboard/google/rex/variants/rex0/overridetree.cb
1 file changed, 21 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/88/74888/1

diff --git a/src/mainboard/google/rex/variants/rex0/overridetree.cb b/src/mainboard/google/rex/variants/rex0/overridetree.cb
index ef517df..eeb70ac 100644
--- a/src/mainboard/google/rex/variants/rex0/overridetree.cb
+++ b/src/mainboard/google/rex/variants/rex0/overridetree.cb
@@ -42,6 +42,10 @@
    	option WIFI_CNVI		0
    	option WIFI_PCIE		1
    end
+	field TOUCHSCREEN 19
+		option TOUCHSCREEN_I2C		0
+		option TOUCHSCREEN_I2C_SPI	1
+	end
 end

chip soc/intel/meteorlake
@@ -75,7 +79,7 @@
    }"

register "serial_io_gspi_mode" = "{
-		[PchSerialIoIndexGSPI0] = PchSerialIoDisabled,
+		[PchSerialIoIndexGSPI0] = PchSerialIoPci,
    	[PchSerialIoIndexGSPI1] = PchSerialIoPci,
    	[PchSerialIoIndexGSPI2] = PchSerialIoDisabled,
    }"
@@ -695,6 +699,9 @@
    		end
    		probe DB_SD SD_GL9755S
    	end
+		device ref gspi0 on
+			probe TOUCHSCREEN TOUCHSCREEN_I2C_SPI
+		end
    	device ref gspi1 on
    		chip drivers/spi/acpi
    			register "name" = ""CRFP""