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| author | Karthikeyan Ramasubramanian <kramasub@google.com> | 2020-11-10 14:54:40 -0700 |
|---|---|---|
| committer | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2020-11-13 01:28:33 +0000 |
| commit | c37e1e6d071cc9c64e99cffa4250e912f70e6ef0 (patch) | |
| tree | ad6353da82383086941f2a62b69b07c2b2f8cea0 /src/mainboard/google/poppy/variants/atlas/devicetree.cb | |
| parent | b2f2bd1c82fb0b393d44c1672041e621cfeaf435 (diff) | |
| download | coreboot-c37e1e6d071cc9c64e99cffa4250e912f70e6ef0.tar.gz coreboot-c37e1e6d071cc9c64e99cffa4250e912f70e6ef0.tar.bz2 coreboot-c37e1e6d071cc9c64e99cffa4250e912f70e6ef0.zip | |
mb/google/poppy: 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: Ida1b1d05b39e67a9eba3bfaecca37f38821a438b
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47423
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/mainboard/google/poppy/variants/atlas/devicetree.cb')
| -rw-r--r-- | src/mainboard/google/poppy/variants/atlas/devicetree.cb | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mainboard/google/poppy/variants/atlas/devicetree.cb b/src/mainboard/google/poppy/variants/atlas/devicetree.cb index 3797fb013550..668e72dc211a 100644 --- a/src/mainboard/google/poppy/variants/atlas/devicetree.cb +++ b/src/mainboard/google/poppy/variants/atlas/devicetree.cb @@ -292,7 +292,7 @@ chip soc/intel/skylake chip drivers/i2c/hid register "generic.hid" = ""ACPI0C50"" register "generic.desc" = ""ELAN Touchpad"" - register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_A19_IRQ)" + register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_A19_IRQ)" register "generic.wake" = "GPE0_DW0_23" # GPP_A23 register "hid_desc_reg_offset" = "0x01" device i2c 0x15 on end |