Change in coreboot[master]: UPSTREAM: mb/google/dedede/var/sasukette: Enable ELAN touchpad

[Zhi7 Li (Code Review)]

Zhi7 Li has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/54369 )

Change subject: UPSTREAM: mb/google/dedede/var/sasukette: Enable ELAN touchpad
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UPSTREAM: mb/google/dedede/var/sasukette: Enable ELAN touchpad

Add ELAN touchpad into devicetree for sasukette.

BUG=b:188376649
BRANCH=dedede
TEST=built sasukette firmware and verified touchpad function

Signed-off-by: lizhi7 
Change-Id: I898aeda936eb10ef4ead679a1c087060fad71a08
---
M src/mainboard/google/dedede/variants/sasukette/overridetree.cb
1 file changed, 8 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/69/54369/1

diff --git a/src/mainboard/google/dedede/variants/sasukette/overridetree.cb b/src/mainboard/google/dedede/variants/sasukette/overridetree.cb
index 8d1b95b..cb4c78f 100644
--- a/src/mainboard/google/dedede/variants/sasukette/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/sasukette/overridetree.cb
@@ -127,6 +127,14 @@
    			register "hid_desc_reg_offset" = "0x20"
    			device i2c 2c on end
    		end
+			chip drivers/i2c/hid
+				register "generic.hid" = ""ELAN0000""
+				register "generic.desc" = ""ELAN Touchpad""
+				register "generic.irq" = "ACPI_IRQ_WAKE_LEVEL_LOW(GPP_B3_IRQ)"
+				register "generic.wake" = "GPE0_DW0_03"
+				register "generic.probed" = "1"
+				device i2c 15 on end
+			end
    	end #I2C 0
    	device pci 19.0 on
    		chip drivers/i2c/generic