From: Paulo Zanoni <paulo.r.zan...@intel.com>

Just like we already do in haswell_get_pipe_config(). This should
prevent some WARNs when we run pm_rpm on SNB.

Testcase: igt/pm_rpm
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80463
Signed-off-by: Paulo Zanoni <paulo.r.zan...@intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index 3d69097..0e6217a 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7261,6 +7261,10 @@ static bool ironlake_get_pipe_config(struct intel_crtc 
*crtc,
        struct drm_i915_private *dev_priv = dev->dev_private;
        uint32_t tmp;
 
+       if (!intel_display_power_enabled(dev_priv,
+                                        POWER_DOMAIN_PIPE(crtc->pipe)))
+               return false;
+
        pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
        pipe_config->shared_dpll = DPLL_ID_PRIVATE;
 
-- 
2.0.0

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