From 029e7361727bb940f4c184b7e825a0491b50a632 Mon Sep 17 00:00:00 2001 From: Karthikeyan Ramasubramanian Date: Tue, 10 Nov 2020 13:41:31 -0700 Subject: mb/google/volteer: Configure IRQs as level triggered for HID over I2C As per HID over I2C Protocol Specification[1] Version 1.00 Section 7.4, the interrupt line used by the device is required to be level triggered. Hence, this change updates the configuration of the HID over I2C devices to be level triggered. References: [1] http://download.microsoft.com/download/7/d/d/7dd44bb7-2a7a-4505-ac1c-7227d3d96d5b/hid-over-i2c-protocol-spec-v1-0.docx BUG=b:172846122 TEST=./util/abuild/abuild Change-Id: Ie7b82ea07ef97b2096d75229c445bd3a65cb3be0 Signed-off-by: Karthikeyan Ramasubramanian Reviewed-on: https://review.coreboot.org/c/coreboot/+/47416 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh --- src/mainboard/google/volteer/variants/eldrid/overridetree.cb | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/mainboard/google/volteer/variants/eldrid') diff --git a/src/mainboard/google/volteer/variants/eldrid/overridetree.cb b/src/mainboard/google/volteer/variants/eldrid/overridetree.cb index 91fbbea5d0..f9ab7c95d3 100644 --- a/src/mainboard/google/volteer/variants/eldrid/overridetree.cb +++ b/src/mainboard/google/volteer/variants/eldrid/overridetree.cb @@ -119,7 +119,7 @@ chip soc/intel/tigerlake chip drivers/i2c/hid register "generic.hid" = ""GDIX0000"" register "generic.desc" = ""Goodix Touchscreen"" - register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_E7_IRQ)" + register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_E7_IRQ)" register "generic.probed" = "1" register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C10)" @@ -136,7 +136,7 @@ chip soc/intel/tigerlake chip drivers/i2c/hid register "generic.hid" = ""ELAN90FC"" register "generic.desc" = ""ELAN Touchscreen"" - register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_E7_IRQ)" + register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_E7_IRQ)" register "generic.probed" = "1" register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C10)" -- cgit v1.2.3