mb/google/octopus: Disable unused USB devices

Disable unused USB devices in the device tree so that the concerned ACPI
objects do not get exported to the OS.

BUG=b:133513961
BRANCH=octopus
TEST=Boot to ChromeOS. Ensure that the USB devices are disabled based
on port status and the concerned ACPI objects are not exported.

Change-Id: I0faccdfb8a9df9ec52130437433b15973e3d6f1a
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34291
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/mainboard/google/octopus/variants/baseboard/include/baseboard/variants.h b/src/mainboard/google/octopus/variants/baseboard/include/baseboard/variants.h
index 140beb4649..2132db591d 100644
--- a/src/mainboard/google/octopus/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/google/octopus/variants/baseboard/include/baseboard/variants.h
@@ -47,6 +47,17 @@ void variant_nhlt_init(struct nhlt *nhlt);
 /* Modify devictree settings during ramstage. */
 struct device;
 void variant_update_devtree(struct device *dev);
+/**
+ * variant_ext_usb_status() - Get status of externally visible USB ports
+ * @port_type: Type of USB port i.e. USB2/USB3
+ * @port_id: USB Port ID
+ *
+ * This function is supplied by the mainboard/variant to SoC's XHCI driver to
+ * identify the status of externally visible USB ports.
+ *
+ * Return: true if the port is present, false if the port is absent.
+ */
+bool variant_ext_usb_status(unsigned int port_type, unsigned int port_id);
 
 /* Get no touchscreen SKU ID. */
 bool no_touchscreen_sku(uint32_t sku_id);