Commit 01fdf179 authored Feb 19, 2019 by Mans Rullgard Committed by Greg Kroah-Hartman Feb 20, 2019

usb: core: skip interfaces disabled in devicetree



If an interface has an associated devicetree node with status disabled,
do not register the device.  This is useful for boards with a built-in
multifunction USB device where some functions are broken or otherwise
undesired.

Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent eb76b37a

drivers/usb/core/message.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -2006,6 +2006,13 @@ free_interfaces:
		for (i = 0; i < nintf; ++i) {
		struct usb_interface *intf = cp->interface[i];

		if (intf->dev.of_node &&
		!of_device_is_available(intf->dev.of_node)) {
		dev_info(&dev->dev, "skipping disabled interface %d\n",
		intf->cur_altsetting->desc.bInterfaceNumber);
		continue;
		}

		dev_dbg(&dev->dev,
		"adding %s (config #%d, interface %d)\n",
		dev_name(&intf->dev), configuration,

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