Revert "drm/vbl rework: rework how the drm deals with vblank."

[firefly-linux-kernel-4.4.55.git] / drivers / char / drm / i915_drv.c

diff --git a/drivers/char/drm/i915_drv.c b/drivers/char/drm/i915_drv.c
index 4048f39b7eed3acfad6b31b6e73b0c63ef73efc4..b2b451dc44608870a48cbfea56b7de522044aa40 100644 (file)
--- a/drivers/char/drm/i915_drv.c
+++ b/drivers/char/drm/i915_drv.c
@@ -222,6 +222,7 @@ static void i915_restore_vga(struct drm_device *dev)
                           dev_priv->saveGR[0x18]);
 
        /* Attribute controller registers */
+       inb(st01);
        for (i = 0; i < 20; i++)
                i915_write_ar(st01, i, dev_priv->saveAR[i], 0);
        inb(st01); /* switch back to index mode */