[Intel-gfx] [PATCH 1/3] drm/i915 save power context on ironlake

[Zou Nan hai]

RC6 need power context to be saved
Signed-off-by: Zou Nan hai <nanhai.zou at intel.com>
---
 drivers/gpu/drm/i915/intel_display.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 88a1ab7..c3c9feb 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5299,7 +5299,8 @@ void intel_init_clock_gating(struct drm_device *dev)
 					(I915_READ(DISP_ARB_CTL) |
 						DISP_FBC_WM_DIS));
 		}
-		return;
+		if (IS_GEN6(dev))
+			return;
 	} else if (IS_G4X(dev)) {
 		uint32_t dspclk_gate;
 		I915_WRITE(RENCLK_GATE_D1, 0);
-- 
1.7.1