From 01ba8cf7a78419eb1ac3c98ad33656b8925ef565 Mon Sep 17 00:00:00 2001 From: Wisley Chen Date: Thu, 10 Nov 2016 10:34:58 -0500 Subject: mainboard/google/snappy: Add PowerResource for ELAN touchscreen Define reset_gpio and enable_gpio for touchscreen device so that when kernel puts this device into D3, we put the device into reset. PowerResource _ON and _OFF routines are used to put the device into D0 and D3 states. BUG=chrome-os-partner:59034 BRANCH=master TEST=emerge-snappy coreboot chromeos-bootimage Change-Id: I08c05d06b2812a33b3fdff9b42b2a8e0653dd8b4 Signed-off-by: Wisley Chen Reviewed-on: https://review.coreboot.org/17366 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel Reviewed-by: Martin Roth --- src/mainboard/google/reef/variants/snappy/devicetree.cb | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'src') diff --git a/src/mainboard/google/reef/variants/snappy/devicetree.cb b/src/mainboard/google/reef/variants/snappy/devicetree.cb index e46483e3b0..9e4dc38116 100644 --- a/src/mainboard/google/reef/variants/snappy/devicetree.cb +++ b/src/mainboard/google/reef/variants/snappy/devicetree.cb @@ -175,6 +175,10 @@ chip soc/intel/apollolake register "desc" = ""ELAN Touchscreen"" register "irq" = "IRQ_EDGE_LOW(GPIO_21_IRQ)" register "probed" = "1" + register "reset_gpio" = "GPIO_36" + register "reset_delay_ms" = "20" + register "enable_gpio" = "GPIO_152" + register "enable_delay_ms" = "1" device i2c 10 on end end end # - I2C 3 -- cgit v1.2.3