drm/i915/rpm: add rpm_to_i915() helper around container_of()

Reduce the duplication.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231205121545.2338665-1-jani.nikula@intel.com

diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index 8743153..156cb15 100644 (file)
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -50,6 +50,11 @@
  * present for a given platform.
  */
 
+static struct drm_i915_private *rpm_to_i915(struct intel_runtime_pm *rpm)
+{
+       return container_of(rpm, struct drm_i915_private, runtime_pm);
+}
+
 #if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
 
 #include <linux/sort.h>
@@ -349,9 +354,7 @@ intel_runtime_pm_release(struct intel_runtime_pm *rpm, int wakelock)
 static intel_wakeref_t __intel_runtime_pm_get(struct intel_runtime_pm *rpm,
                                              bool wakelock)
 {
-       struct drm_i915_private *i915 = container_of(rpm,
-                                                    struct drm_i915_private,
-                                                    runtime_pm);
+       struct drm_i915_private *i915 = rpm_to_i915(rpm);
        int ret;
 
        ret = pm_runtime_get_sync(rpm->kdev);
@@ -556,9 +559,7 @@ void intel_runtime_pm_put(struct intel_runtime_pm *rpm, intel_wakeref_t wref)
  */
 void intel_runtime_pm_enable(struct intel_runtime_pm *rpm)
 {
-       struct drm_i915_private *i915 = container_of(rpm,
-                                                    struct drm_i915_private,
-                                                    runtime_pm);
+       struct drm_i915_private *i915 = rpm_to_i915(rpm);
        struct device *kdev = rpm->kdev;
 
        /*
@@ -611,9 +612,7 @@ void intel_runtime_pm_enable(struct intel_runtime_pm *rpm)
 
 void intel_runtime_pm_disable(struct intel_runtime_pm *rpm)
 {
-       struct drm_i915_private *i915 = container_of(rpm,
-                                                    struct drm_i915_private,
-                                                    runtime_pm);
+       struct drm_i915_private *i915 = rpm_to_i915(rpm);
        struct device *kdev = rpm->kdev;
 
        /* Transfer rpm ownership back to core */
@@ -628,9 +627,7 @@ void intel_runtime_pm_disable(struct intel_runtime_pm *rpm)
 
 void intel_runtime_pm_driver_release(struct intel_runtime_pm *rpm)
 {
-       struct drm_i915_private *i915 = container_of(rpm,
-                                                    struct drm_i915_private,
-                                                    runtime_pm);
+       struct drm_i915_private *i915 = rpm_to_i915(rpm);
        int count = atomic_read(&rpm->wakeref_count);
 
        intel_wakeref_auto_fini(&rpm->userfault_wakeref);
@@ -645,8 +642,7 @@ void intel_runtime_pm_driver_release(struct intel_runtime_pm *rpm)
 
 void intel_runtime_pm_init_early(struct intel_runtime_pm *rpm)
 {
-       struct drm_i915_private *i915 =
-                       container_of(rpm, struct drm_i915_private, runtime_pm);
+       struct drm_i915_private *i915 = rpm_to_i915(rpm);
        struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
        struct device *kdev = &pdev->dev;