drm/i915/skl: Fix power domain suspend sequence

During system suspend we need to first disable power wells then
unitialize the display core. In case power well support is disabled we
did this in the wrong order, so fix this up.

Fixes: d314cd43 ("drm/i915: fix handling of the disable_power_well module option")
CC: stable@vger.kernel.org
CC: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1456778945-5411-1-git-send-email-imre.deak@intel.com

diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index 4172e73212cd8c69c93023741b4f896570cc1a32..6e54d978d9d48d79a0d1cd830403e5f0c17c97b7 100644 (file)
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -2319,15 +2319,15 @@ void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume)
  */
 void intel_power_domains_suspend(struct drm_i915_private *dev_priv)
 {
-       if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv))
-               skl_display_core_uninit(dev_priv);
-
        /*
         * Even if power well support was disabled we still want to disable
         * power wells while we are system suspended.
         */
        if (!i915.disable_power_well)
                intel_display_power_put(dev_priv, POWER_DOMAIN_INIT);
+
+       if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv))
+               skl_display_core_uninit(dev_priv);
 }
 
 /**