From 3ce104e5d867e96c9a2a21103d26de5826af6b12 Mon Sep 17 00:00:00 2001 From: Furquan Shaikh Date: Thu, 20 Oct 2016 22:48:45 -0700 Subject: mainboard/google/reef: 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:55988 Change-Id: Ia905f9eb630cd96767b639aec74131dbd7952d0e Signed-off-by: Furquan Shaikh Reviewed-on: https://review.coreboot.org/17083 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin Reviewed-by: Duncan Laurie --- src/mainboard/google/reef/variants/baseboard/devicetree.cb | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'src') diff --git a/src/mainboard/google/reef/variants/baseboard/devicetree.cb b/src/mainboard/google/reef/variants/baseboard/devicetree.cb index 00df9bd4b9..30d61f63d4 100644 --- a/src/mainboard/google/reef/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/reef/variants/baseboard/devicetree.cb @@ -142,6 +142,10 @@ 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