From 5474f8e3cf54dc9d9eb699de1ff0e3fdbe66dfe6 Mon Sep 17 00:00:00 2001 From: Furquan Shaikh Date: Wed, 5 Aug 2020 14:54:39 -0700 Subject: mb/google/zork: Add touchscreen power control This change adds support for touchscreen power control using: * GPIO_90 for trembyle based boards * GPIO_32 for dalboz based boards By default, baseboard tables configure these GPIOs as PAD_GPO driven low and override trees expose these pads as enable_gpio to be used by ACPI power resource. In order to support pre-v3.6 boards, override tables configure these pads as PAD_NC and drop the enable_gpio setting from device tree based on board version. BUG=b:161935640, b:162747210 Change-Id: Iba5e36b65b44ea11613b4d5fc8f13ce6433f83ab Signed-off-by: Furquan Shaikh Reviewed-on: https://review.coreboot.org/c/coreboot/+/44193 Reviewed-by: Aaron Durbin Tested-by: build bot (Jenkins) --- src/mainboard/google/zork/variants/morphius/overridetree.cb | 2 ++ 1 file changed, 2 insertions(+) (limited to 'src/mainboard/google/zork/variants/morphius/overridetree.cb') diff --git a/src/mainboard/google/zork/variants/morphius/overridetree.cb b/src/mainboard/google/zork/variants/morphius/overridetree.cb index caaddb8105..e39596d134 100644 --- a/src/mainboard/google/zork/variants/morphius/overridetree.cb +++ b/src/mainboard/google/zork/variants/morphius/overridetree.cb @@ -71,6 +71,8 @@ chip soc/amd/picasso register "generic.desc" = ""Goodix Touchscreen"" register "generic.irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_12)" register "generic.probed" = "1" + register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_90)" + register "generic.enable_delay_ms" = "10" register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_140)" register "generic.reset_delay_ms" = "120" register "generic.reset_off_delay_ms" = "1" -- cgit v1.2.3