Change in coreboot[master]: google/snappy: Add Raydium touch screen support

[Kevin Chiu (Code Review)]

Kevin Chiu has uploaded this change for review. ( https://review.coreboot.org/21083

Change subject: google/snappy: Add Raydium touch screen support
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google/snappy: Add Raydium touch screen support

Current coreboot does not create ACPI device for OS to recognize Raydium
touchscreen.
List the touch screen in the devicetree so that the correct ACPI device
are created.

BUG=b:64821783
BRANCH=reef
TEST=emerge-snappy coreboot
Change-Id: I8852e38f01f82b80c2c9718b93baf5894dbd745b
Signed-off-by: Kevin Chiu 
---
M src/mainboard/google/reef/variants/snappy/devicetree.cb
1 file changed, 7 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/83/21083/1

diff --git a/src/mainboard/google/reef/variants/snappy/devicetree.cb b/src/mainboard/google/reef/variants/snappy/devicetree.cb
index 4bb9b51..5d28603 100644
--- a/src/mainboard/google/reef/variants/snappy/devicetree.cb
+++ b/src/mainboard/google/reef/variants/snappy/devicetree.cb
@@ -200,6 +200,13 @@
    			register "probed" = "1"
    			device i2c 34 on end
    		end
+			chip drivers/i2c/generic
+				register "hid" = ""RAYD0001""
+				register "desc" = ""Raydium Touchscreen""
+				register "irq" = "ACPI_IRQ_EDGE_LOW(GPIO_21_IRQ)"
+				register "probed" = "1"
+				device i2c 39 on end
+			end
    		chip drivers/i2c/hid
    			register "generic.hid" = ""WDHT0002""
    			register "generic.desc" = ""WDT Touchscreen""