drm/nv50: fix fillrect color

struct fb_fillrect->color is not a color, but index into pseudo_palette
array
Signed-off-by: NMarcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nv50_fbcon.c

@@ -10,6 +10,7 @@ nv50_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
 	struct drm_device *dev = par->dev;
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_channel *chan = dev_priv->channel;
+	uint32_t color = ((uint32_t *) info->pseudo_palette)[rect->color];
 
 	if (info->state != FBINFO_STATE_RUNNING)
 		return;
@@ -31,7 +32,7 @@ nv50_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
 		OUT_RING(chan, 1);
 	}
 	BEGIN_RING(chan, NvSub2D, 0x0588, 1);
-	OUT_RING(chan, rect->color);
+	OUT_RING(chan, color);
 	BEGIN_RING(chan, NvSub2D, 0x0600, 4);
 	OUT_RING(chan, rect->dx);
 	OUT_RING(chan, rect->dy);