drm/i915: Move pll power state to crtc power domains.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1457944075-14123-4-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>

drivers/gpu/drm/i915/intel_display.c

@@ -5273,6 +5273,9 @@ static unsigned long get_crtc_power_domains(struct drm_crtc *crtc,
 		mask |= BIT(intel_display_port_power_domain(intel_encoder));
 	}
 
+	if (crtc_state->shared_dpll)
+		mask |= BIT(POWER_DOMAIN_PLLS);
+
 	return mask;
 }
 
@@ -15703,9 +15706,6 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev)
 
 		DRM_DEBUG_KMS("%s hw state readout: crtc_mask 0x%08x, on %i\n",
 			      pll->name, pll->config.crtc_mask, pll->on);
-
-		if (pll->config.crtc_mask)
-			intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS);
 	}
 
 	for_each_intel_encoder(dev, encoder) {

drivers/gpu/drm/i915/intel_dpll_mgr.c

@@ -135,8 +135,6 @@ void intel_enable_shared_dpll(struct intel_crtc *crtc)
 	}
 	WARN_ON(pll->on);
 
-	intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS);
-
 	DRM_DEBUG_KMS("enabling %s\n", pll->name);
 	pll->funcs.enable(dev_priv, pll);
 	pll->on = true;
@@ -173,8 +171,6 @@ void intel_disable_shared_dpll(struct intel_crtc *crtc)
 	DRM_DEBUG_KMS("disabling %s\n", pll->name);
 	pll->funcs.disable(dev_priv, pll);
 	pll->on = false;
-
-	intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS);
 }
 
 static struct intel_shared_dpll *