From 86dc4b70724678d931fbce8a0286886539b0d94f Mon Sep 17 00:00:00 2001 From: Karthikeyan Ramasubramanian Date: Tue, 10 Nov 2020 13:46:26 -0700 Subject: mb/google/hatch: 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: I320198d56131cf54e0f73227479f69968719b2a7 Signed-off-by: Karthikeyan Ramasubramanian Reviewed-on: https://review.coreboot.org/c/coreboot/+/47417 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh --- src/mainboard/google/hatch/variants/kindred/overridetree.cb | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/mainboard/google/hatch/variants/kindred') diff --git a/src/mainboard/google/hatch/variants/kindred/overridetree.cb b/src/mainboard/google/hatch/variants/kindred/overridetree.cb index c75b7ba8c5..c06f35b9cb 100644 --- a/src/mainboard/google/hatch/variants/kindred/overridetree.cb +++ b/src/mainboard/google/hatch/variants/kindred/overridetree.cb @@ -117,7 +117,7 @@ chip soc/intel/cannonlake chip drivers/i2c/hid register "generic.hid" = ""PNP0C50"" register "generic.desc" = ""Synaptics Touchpad"" - register "generic.irq" = "ACPI_IRQ_WAKE_EDGE_LOW(GPP_A21_IRQ)" + register "generic.irq" = "ACPI_IRQ_WAKE_LEVEL_LOW(GPP_A21_IRQ)" register "generic.wake" = "GPE0_DW0_21" register "generic.probed" = "1" register "hid_desc_reg_offset" = "0x20" @@ -156,7 +156,7 @@ chip soc/intel/cannonlake chip drivers/i2c/hid register "generic.hid" = ""ELAN9004"" register "generic.desc" = ""ELAN Touchscreen"" - register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_D16_IRQ)" + register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_D16_IRQ)" register "generic.probed" = "1" register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_D15)" register "generic.reset_delay_ms" = "20" -- cgit v1.2.3