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-rw-r--r--drivers/gpu/drm/i915/i915_reg.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 810cfa86641..4c71f5692da 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1437,6 +1437,10 @@
#define LVDS_PIPEB_SELECT (1 << 30)
/* LVDS dithering flag on 965/g4x platform */
#define LVDS_ENABLE_DITHER (1 << 25)
+/* LVDS sync polarity flags. Set to invert (i.e. negative) */
+#define LVDS_VSYNC_POLARITY (1 << 21)
+#define LVDS_HSYNC_POLARITY (1 << 20)
+
/* Enable border for unscaled (or aspect-scaled) display */
#define LVDS_BORDER_ENABLE (1 << 15)
/*