drm/i915: Enable self-refresh for Ironlake

We disabled this a while ago as it was inexplicably broken. However, it
now appears to work...

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 0b6272a..83446b5 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3456,7 +3456,7 @@ static void ironlake_update_wm(struct drm_device *dev,
         * display plane is used.
         */
        tmp = 0;
-       if (enabled == 1 && /* XXX disabled due to buggy implmentation? */ 0) {
+       if (enabled == 1) {
                unsigned long line_time_us;
                int small, large, plane_fbc;
                int sr_clock, entries;