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Subject[char-misc-next 10/13] mei: bus: unconditionally enable clients with vtag support
Date
From: Alexander Usyskin <alexander.usyskin@intel.com>

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>
---
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 07ba16d46690..4e30fa98fe7d 100644
--- a/drivers/misc/mei/bus-fixup.c
+++ b/drivers/misc/mei/bus-fixup.c
@@ -463,6 +463,17 @@ static void mei_nfc(struct mei_cl_device *cldev)
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),
};

/**
--
2.25.4
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