[XS] Change in coreboot[main]: mb/google/rex/var/kanix: Add Synaptics touchpad

[Kenneth Chan (Code Review)]

Kenneth Chan has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/85776?usp=email )

Change subject: mb/google/rex/var/kanix: Add Synaptics touchpad
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mb/google/rex/var/kanix: Add Synaptics touchpad

Add Synaptics touchpad for kanix.

BUG=None
TEST=emerge-rex coreboot and check touchpad function is working properly.

Change-Id: I89b9e24f98c1e7af571507283469411fd389431a
Signed-off-by: Kenneth Chan 
---
M src/mainboard/google/rex/variants/kanix/overridetree.cb
1 file changed, 9 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/76/85776/1

diff --git a/src/mainboard/google/rex/variants/kanix/overridetree.cb b/src/mainboard/google/rex/variants/kanix/overridetree.cb
index 244f974..b3a40f0 100644
--- a/src/mainboard/google/rex/variants/kanix/overridetree.cb
+++ b/src/mainboard/google/rex/variants/kanix/overridetree.cb
@@ -450,6 +450,15 @@
    			register "hid_desc_reg_offset" = "0x20"
    			device i2c 68 on end
    		end
+			chip drivers/i2c/hid
+				register "generic.hid" = ""PNP0C50""
+				register "generic.desc" = ""Synaptics Touchpad""
+				register "generic.irq" = "ACPI_IRQ_WAKE_LEVEL_LOW(GPP_B00_IRQ)"
+				register "generic.wake" = "GPE0_DW0_00"
+				register "generic.probed" = "1"
+				register "hid_desc_reg_offset" = "0x20"
+				device i2c 0x2c on end
+			end
    	end
    	device ref i2c4 on
    		chip drivers/i2c/tpm