From 2b13ca5bcdc15b894665c7f0a0d26c45c1e46efc Mon Sep 17 00:00:00 2001 From: Ricardo Ribalda Date: Thu, 29 Oct 2020 15:00:26 +0100 Subject: mb/google/volteer/eldrid: Describe the privacy_gpio Add information regarding the privacy pin on the overridetree and the gpio. BUG=b:171888751 Change-Id: I1ab19a863715ba5a928dd7c16402d398e5475edc Signed-off-by: Ricardo Ribalda Reviewed-on: https://review.coreboot.org/c/coreboot/+/46964 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh --- src/mainboard/google/volteer/variants/eldrid/overridetree.cb | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'src/mainboard/google/volteer/variants/eldrid/overridetree.cb') diff --git a/src/mainboard/google/volteer/variants/eldrid/overridetree.cb b/src/mainboard/google/volteer/variants/eldrid/overridetree.cb index 249505fc41..91fbbea5d0 100644 --- a/src/mainboard/google/volteer/variants/eldrid/overridetree.cb +++ b/src/mainboard/google/volteer/variants/eldrid/overridetree.cb @@ -227,6 +227,10 @@ chip soc/intel/tigerlake chip drivers/usb/acpi register "desc" = ""USB2 Camera"" register "type" = "UPC_TYPE_INTERNAL" + # The Linux Kernel does not allow an inverted BOTH_EDGE irq + # So we need to use GpioIO() instead of GpioInt() + # https://www.kernel.org/doc/Documentation/acpi/gpio-properties.txt + register "privacy_gpio" = "ACPI_GPIO_INPUT_ACTIVE_LOW(GPP_D4)" device ref usb2_port5 on end end chip drivers/usb/acpi -- cgit v1.2.3