From 6e45ce55b139b37af2791a18a1f6a7a2435a4041 Mon Sep 17 00:00:00 2001 From: Furquan Shaikh Date: Tue, 12 Jul 2016 13:44:52 -0700 Subject: [PATCH] UPSTREAM: google/reef: Enable touchscreen in ACPI Add support for ELAN touchscreen on I2C3. BUG=None BRANCH=None TEST=None Change-Id: Id8b07a3a3fd4beca0d7ce804ba8d6859275c70d9 Original-Signed-off-by: Furquan Shaikh Original-Reviewed-on: https://review.coreboot.org/15499 Original-Tested-by: build bot (Jenkins) Original-Reviewed-by: Aaron Durbin Signed-off-by: Aaron Durbin Reviewed-on: https://chromium-review.googlesource.com/360804 Reviewed-by: Duncan Laurie --- src/mainboard/google/reef/devicetree.cb | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/src/mainboard/google/reef/devicetree.cb b/src/mainboard/google/reef/devicetree.cb index 98e413b7d2..3425c432b3 100644 --- a/src/mainboard/google/reef/devicetree.cb +++ b/src/mainboard/google/reef/devicetree.cb @@ -92,7 +92,14 @@ chip soc/intel/apollolake end device pci 16.1 on end # - I2C 1 device pci 16.2 on end # - I2C 2 - device pci 16.3 on end # - I2C 3 + device pci 16.3 on + chip drivers/i2c/generic + register "hid" = ""ELAN0001"" + register "desc" = ""ELAN Touchscreen"" + register "irq" = "IRQ_EDGE_LOW(GPIO_21_IRQ)" + device i2c 10 on end + end + end # - I2C 3 device pci 17.0 on chip drivers/i2c/generic register "hid" = ""ELAN0000""