mb/google/dedede/var/lantis: Configure IRQs as level triggered for HID over I2C
Config HID-I2C device to level trigger.
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:171546871
TEST=emerge-dedede coreboot
Change-Id: If8be25f591715765a99920b79482c862b1cc7079
Signed-off-by: Tony Huang <tony-huang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48193
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
diff --git a/src/mainboard/google/dedede/variants/lantis/overridetree.cb b/src/mainboard/google/dedede/variants/lantis/overridetree.cb
index 2933b1a..1b87bcb 100644
--- a/src/mainboard/google/dedede/variants/lantis/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/lantis/overridetree.cb
@@ -93,7 +93,7 @@
chip drivers/i2c/hid
register "generic.hid" = ""GTCH7503""
register "generic.desc" = ""G2TOUCH Touchscreen""
- register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_D4_IRQ)"
+ register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_D4_IRQ)"
register "generic.probed" = "1"
register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D5)"
register "generic.reset_delay_ms" = "50"
@@ -107,7 +107,7 @@
chip drivers/i2c/hid
register "generic.hid" = ""GDIX0000""
register "generic.desc" = ""Goodix Touchscreen""
- register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_D4_IRQ)"
+ register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_D4_IRQ)"
register "generic.probed" = "1"
register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D5)"
register "generic.reset_delay_ms" = "120"