Commit 224ae607 authored Aug 18, 2020 by Alexander Usyskin Committed by Greg Kroah-Hartman Aug 18, 2020

mei: bus: unconditionally enable clients with vtag support

The list of clients is only visible via mei client bus.
Enabling vtag clients on the mei client bus allows user-space to
enumerate clients with vtag support by traversing the mei bus on sysfs.
This feature is required for ACRN device model service.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20200818115147.2567012-11-tomas.winkler@intel.com

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent e5617d2b

drivers/misc/mei/bus-fixup.c

+12 −0

Original line number	Diff line number	Diff line
		@@ -463,6 +463,17 @@ out:
		dev_dbg(bus->dev, "end of fixup match = %d\n", cldev->do_match);
		}

		/**
		* vt_support - enable on bus clients with vtag support
		*
		* @cldev: me clients device
		*/
		static void vt_support(struct mei_cl_device *cldev)
		{
		if (cldev->me_cl->props.vt_supported == 1)
		cldev->do_match = 1;
		}

		#define MEI_FIXUP(_uuid, _hook) { _uuid, _hook }

		static struct mei_fixup {
		@@ -476,6 +487,7 @@ static struct mei_fixup {
		MEI_FIXUP(MEI_UUID_WD, mei_wd),
		MEI_FIXUP(MEI_UUID_MKHIF_FIX, mei_mkhi_fix),
		MEI_FIXUP(MEI_UUID_HDCP, whitelist),
		MEI_FIXUP(MEI_UUID_ANY, vt_support),
		};

		/**