[03/12] drm/i915: Introduce some local intel_dp variables
diff mbox series

Message ID 20200219203544.31013-4-ville.syrjala@linux.intel.com
State New
Headers show
Series
  • drm: Put drm_display_mode on diet
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Commit Message

Ville Syrjala Feb. 19, 2020, 8:35 p.m. UTC
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

The drrs code dereferences mode->vrefresh via some really long chain
of structures/pointers. Couldn't get coccinelle to see through all
that so let's add some local variables to help it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

Comments

Emil Velikov Feb. 20, 2020, 11:13 a.m. UTC | #1
On Wed, 19 Feb 2020 at 20:36, Ville Syrjala
<ville.syrjala@linux.intel.com> wrote:
>
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> The drrs code dereferences mode->vrefresh via some really long chain
> of structures/pointers. Couldn't get coccinelle to see through all
> that so let's add some local variables to help it.
>
There's a limit to the madness that coccinelle can take :-P
Other drrs functions already use intel_dp, so might as well be consistent.

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

-Emil

Patch
diff mbox series

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 82baf5aba84b..f9e1361460d8 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -7196,6 +7196,7 @@  static void intel_edp_drrs_downclock_work(struct work_struct *work)
 void intel_edp_drrs_invalidate(struct drm_i915_private *dev_priv,
 			       unsigned int frontbuffer_bits)
 {
+	struct intel_dp *intel_dp;
 	struct drm_crtc *crtc;
 	enum pipe pipe;
 
@@ -7205,12 +7206,14 @@  void intel_edp_drrs_invalidate(struct drm_i915_private *dev_priv,
 	cancel_delayed_work(&dev_priv->drrs.work);
 
 	mutex_lock(&dev_priv->drrs.mutex);
-	if (!dev_priv->drrs.dp) {
+
+	intel_dp = dev_priv->drrs.dp;
+	if (!intel_dp) {
 		mutex_unlock(&dev_priv->drrs.mutex);
 		return;
 	}
 
-	crtc = dp_to_dig_port(dev_priv->drrs.dp)->base.base.crtc;
+	crtc = dp_to_dig_port(intel_dp)->base.base.crtc;
 	pipe = to_intel_crtc(crtc)->pipe;
 
 	frontbuffer_bits &= INTEL_FRONTBUFFER_ALL_MASK(pipe);
@@ -7219,7 +7222,7 @@  void intel_edp_drrs_invalidate(struct drm_i915_private *dev_priv,
 	/* invalidate means busy screen hence upclock */
 	if (frontbuffer_bits && dev_priv->drrs.refresh_rate_type == DRRS_LOW_RR)
 		intel_dp_set_drrs_state(dev_priv, to_intel_crtc(crtc)->config,
-			dev_priv->drrs.dp->attached_connector->panel.fixed_mode->vrefresh);
+					intel_dp->attached_connector->panel.fixed_mode->vrefresh);
 
 	mutex_unlock(&dev_priv->drrs.mutex);
 }
@@ -7239,6 +7242,7 @@  void intel_edp_drrs_invalidate(struct drm_i915_private *dev_priv,
 void intel_edp_drrs_flush(struct drm_i915_private *dev_priv,
 			  unsigned int frontbuffer_bits)
 {
+	struct intel_dp *intel_dp;
 	struct drm_crtc *crtc;
 	enum pipe pipe;
 
@@ -7248,12 +7252,14 @@  void intel_edp_drrs_flush(struct drm_i915_private *dev_priv,
 	cancel_delayed_work(&dev_priv->drrs.work);
 
 	mutex_lock(&dev_priv->drrs.mutex);
-	if (!dev_priv->drrs.dp) {
+
+	intel_dp = dev_priv->drrs.dp;
+	if (!intel_dp) {
 		mutex_unlock(&dev_priv->drrs.mutex);
 		return;
 	}
 
-	crtc = dp_to_dig_port(dev_priv->drrs.dp)->base.base.crtc;
+	crtc = dp_to_dig_port(intel_dp)->base.base.crtc;
 	pipe = to_intel_crtc(crtc)->pipe;
 
 	frontbuffer_bits &= INTEL_FRONTBUFFER_ALL_MASK(pipe);
@@ -7262,7 +7268,7 @@  void intel_edp_drrs_flush(struct drm_i915_private *dev_priv,
 	/* flush means busy screen hence upclock */
 	if (frontbuffer_bits && dev_priv->drrs.refresh_rate_type == DRRS_LOW_RR)
 		intel_dp_set_drrs_state(dev_priv, to_intel_crtc(crtc)->config,
-				dev_priv->drrs.dp->attached_connector->panel.fixed_mode->vrefresh);
+					intel_dp->attached_connector->panel.fixed_mode->vrefresh);
 
 	/*
 	 * flush also means no more activity hence schedule downclock, if all