[PATCH 03/12] drm/i915: Introduce some local intel_dp variables

Ville Syrjala
2020-02-19T20:36:04Z

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(-)

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
--
2.24.1