[coreboot-gerrit] Change in ...coreboot[master]: mb/google/sarien/variants/sarien: Enable elan touchscreen

[Chris Zhou (Code Review)]

Chris Zhou has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/31413

Change subject: mb/google/sarien/variants/sarien: Enable elan touchscreen
......................................................................

mb/google/sarien/variants/sarien: Enable elan touchscreen

BUG=b:119763054
BRANCH=master
TEST=Verify touchscreen on sarien works with this change.

Signed-off-by: Chris Zhou 
Change-Id: I790436338705fc9d68f714245e9b9bb518ddb30a
---
M src/mainboard/google/sarien/variants/sarien/devicetree.cb
1 file changed, 13 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/13/31413/1

diff --git a/src/mainboard/google/sarien/variants/sarien/devicetree.cb b/src/mainboard/google/sarien/variants/sarien/devicetree.cb
index d3d26f9..d6563fb 100644
--- a/src/mainboard/google/sarien/variants/sarien/devicetree.cb
+++ b/src/mainboard/google/sarien/variants/sarien/devicetree.cb
@@ -235,6 +235,19 @@
    			register "hid_desc_reg_offset" = "0x0"
    			device i2c 10 on end
    		end
+			chip drivers/i2c/hid
+				register "generic.hid" = ""ELAN900C""
+				register "generic.desc" = ""ELAN Touchscreen""
+				register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_C23_IRQ)"
+				register "generic.probed" = "1"
+				register "generic.enable_gpio" =
+							"ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_E7)"
+				register "generic.enable_delay_ms" = "5"
+				register "generic.enable_off_delay_ms" = "100"
+				register "generic.has_power_resource" = "1"
+				register "hid_desc_reg_offset" = "0x01"
+				device i2c 10 on end
+			end
    	end # I2C #0
    	device pci 15.1 on
    		chip drivers/i2c/generic