From 224ae607526b4a389ae469207530fcdc9abaa7b9 Mon Sep 17 00:00:00 2001 From: Alexander Usyskin Date: Tue, 18 Aug 2020 14:51:44 +0300 Subject: [PATCH] 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 Signed-off-by: Tomas Winkler Link: https://lore.kernel.org/r/20200818115147.2567012-11-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/bus-fixup.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/misc/mei/bus-fixup.c b/drivers/misc/mei/bus-fixup.c index 07ba16d..4e30fa9 100644 --- a/drivers/misc/mei/bus-fixup.c +++ b/drivers/misc/mei/bus-fixup.c @@ -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), }; /** -- 2.7.4