drm/dp: Make sink count DP 1.2 aware
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 38ffcb4..fe06148 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -221,7 +221,8 @@
# define DP_PSR_FRAME_CAPTURE (1 << 3)
#define DP_SINK_COUNT 0x200
-# define DP_SINK_COUNT_MASK (31 << 0)
+/* prior to 1.2 bit 7 was reserved mbz */
+# define DP_GET_SINK_COUNT(x) ((((x) & 0x80) >> 1) | ((x) & 0x3f))
# define DP_SINK_CP_READY (1 << 6)
#define DP_DEVICE_SERVICE_IRQ_VECTOR 0x201