[coreboot-gerrit] Change in coreboot[master]: mb/google/drallion: Add second touch pad support

[EricR Lai (Code Review)]

EricR Lai has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/36501 )

Change subject: mb/google/drallion: Add second touch pad support
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mb/google/drallion: Add second touch pad support

Add second source touch pad with i2c address 0x15.

BUG=b:142629138
BRANCH=N/A
TEST=check new touch pad can work properly

Signed-off-by: Eric Lai 
Change-Id: Icc58dbcf307f11c368a1a5408f32111ed5841d39
---
M src/mainboard/google/drallion/variants/drallion/devicetree.cb
1 file changed, 7 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/01/36501/1

diff --git a/src/mainboard/google/drallion/variants/drallion/devicetree.cb b/src/mainboard/google/drallion/variants/drallion/devicetree.cb
index 1f628d6..0de2e94 100644
--- a/src/mainboard/google/drallion/variants/drallion/devicetree.cb
+++ b/src/mainboard/google/drallion/variants/drallion/devicetree.cb
@@ -373,6 +373,13 @@
    			register "probed" = "1"
    			device i2c 2c on end
    		end
+			chip drivers/i2c/generic
+				register "hid" = ""ELAN0000""
+				register "desc" = ""ELAN Touchpad""
+				register "irq" = "ACPI_IRQ_EDGE_LOW(GPP_B3_IRQ)"
+				register "probed" = "1"
+				device i2c 15 on end
+			end
    	end # I2C #1
    	device pci 15.2 off end # I2C #2
    	device pci 15.3 off end # I2C #3