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authorAlexander Usyskin <alexander.usyskin@intel.com>2020-08-18 14:51:44 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-08-18 16:44:44 +0300
commit224ae607526b4a389ae469207530fcdc9abaa7b9 (patch)
treede3e63ee83784ea8675e5d820d90ccc139d5201d /drivers/misc/mei
parente5617d2bf5492aea96cb99cc772aded46804add3 (diff)
downloadlinux-224ae607526b4a389ae469207530fcdc9abaa7b9.tar.xz
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>
Diffstat (limited to 'drivers/misc/mei')
-rw-r--r--drivers/misc/mei/bus-fixup.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/misc/mei/bus-fixup.c b/drivers/misc/mei/bus-fixup.c
index 07ba16d46690..4e30fa98fe7d 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),
};
/**