diff options
| author | Karthikeyan Ramasubramanian <kramasub@google.com> | 2020-11-10 14:55:53 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-11-22 22:17:07 +0000 |
| commit | f752fc654610cb8dd481a9b735b495e2109610e0 (patch) | |
| tree | 59fb8623d7c04a7fe3edb11f0beb74314d644980 | |
| parent | f61011a56fba8fce5eee19f8c4e5979c4427c81e (diff) | |
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 <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47424
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
| -rw-r--r-- | src/mainboard/google/sarien/variants/arcada/devicetree.cb | 2 | ||||
| -rw-r--r-- | src/mainboard/google/sarien/variants/sarien/devicetree.cb | 2 |
2 files changed, 2 insertions, 2 deletions
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)" |