drm/i915: Fix multifunction SDVO detection

I can't think of any sensible reason to limit this to a mask of 0x0f,
ie, SDVO_OUTPUT_{TMDS,RGB,CVBS,SVID}0.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index ed15c00..6cbbe5c 100644 (file)
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1232,8 +1232,7 @@ static bool
 intel_sdvo_multifunc_encoder(struct intel_sdvo *intel_sdvo)
 {
        /* Is there more than one type of output? */
-       int caps = intel_sdvo->caps.output_flags & 0xf;
-       return caps & -caps;
+       return hweight16(intel_sdvo->caps.output_flags) > 1;
 }
 
 static struct edid *