From e219862795958009909c36e3a9298dc07935549b Mon Sep 17 00:00:00 2001 From: Dtrain Hsu Date: Mon, 24 May 2021 14:36:12 +0800 Subject: [PATCH] mb/google/dedede/var/cret: Add new Elan touchscreen Add Elan eKTH7D18 touchscreen into devicetree for cret. BUG=b:180547935, b:187484857 BRANCH=dedede TEST=Built cret firmware and verified touchscreen function. Signed-off-by: Dtrain Hsu Change-Id: Iab87ddfc7b46420439efa3e7e55c88ad4c27155d Reviewed-on: https://review.coreboot.org/c/coreboot/+/54868 Tested-by: build bot (Jenkins) Reviewed-by: Karthik Ramasubramanian Reviewed-by: EricR Lai --- .../dedede/variants/cret/overridetree.cb | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/src/mainboard/google/dedede/variants/cret/overridetree.cb b/src/mainboard/google/dedede/variants/cret/overridetree.cb index 258632204b..82002e45a8 100644 --- a/src/mainboard/google/dedede/variants/cret/overridetree.cb +++ b/src/mainboard/google/dedede/variants/cret/overridetree.cb @@ -147,6 +147,24 @@ chip soc/intel/jasperlake register "has_power_resource" = "1" device i2c 10 on end end + chip drivers/i2c/hid + register "generic.hid" = ""ELAN900C"" + register "generic.desc" = ""ELAN Touchscreen"" + register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_D4_IRQ)" + register "generic.probed" = "1" + register "generic.reset_gpio" = + "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_D5)" + register "generic.reset_delay_ms" = "6" + register "generic.stop_gpio" = + "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A11)" + register "generic.stop_delay_ms" = "300" + register "generic.enable_gpio" = + "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D6)" + register "generic.enable_delay_ms" = "6" + register "generic.has_power_resource" = "1" + register "hid_desc_reg_offset" = "0x01" + device i2c 16 on end + end end # I2C 2 device pci 15.3 off end # I2C 3 device pci 1c.7 on end