From f752fc654610cb8dd481a9b735b495e2109610e0 Mon Sep 17 00:00:00 2001 From: Karthikeyan Ramasubramanian Date: Tue, 10 Nov 2020 14:55:53 -0700 Subject: mb/google/sarien: 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: I27c485c9c8c5d47a44fc050d8cf12c553bffd01e Signed-off-by: Karthikeyan Ramasubramanian Reviewed-on: https://review.coreboot.org/c/coreboot/+/47424 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh --- src/mainboard/google/sarien/variants/arcada/devicetree.cb | 2 +- src/mainboard/google/sarien/variants/sarien/devicetree.cb | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'src') diff --git a/src/mainboard/google/sarien/variants/arcada/devicetree.cb b/src/mainboard/google/sarien/variants/arcada/devicetree.cb index 74529d049d..9e05213440 100644 --- a/src/mainboard/google/sarien/variants/arcada/devicetree.cb +++ b/src/mainboard/google/sarien/variants/arcada/devicetree.cb @@ -337,7 +337,7 @@ chip soc/intel/cannonlake chip drivers/i2c/hid register "generic.hid" = ""PNP0C50"" register "generic.desc" = ""Cirque Touchpad"" - register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_B3_IRQ)" + register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_B3_IRQ)" register "generic.probed" = "1" register "hid_desc_reg_offset" = "0x20" device i2c 2a on end diff --git a/src/mainboard/google/sarien/variants/sarien/devicetree.cb b/src/mainboard/google/sarien/variants/sarien/devicetree.cb index 519c3eb6d9..005a783e4f 100644 --- a/src/mainboard/google/sarien/variants/sarien/devicetree.cb +++ b/src/mainboard/google/sarien/variants/sarien/devicetree.cb @@ -326,7 +326,7 @@ chip soc/intel/cannonlake chip drivers/i2c/hid register "generic.hid" = ""ELAN900C"" register "generic.desc" = ""ELAN Touchscreen"" - register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_C23_IRQ)" + register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C23_IRQ)" register "generic.probed" = "1" register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E7)" -- cgit v1.2.3