[Intel-gfx] [PATCH v2 02/10] drm/i915: Rename intel_power_domains_fini() to intel_power_domains_fini_hw()

[Imre Deak]

intel_power_domains_fini() rolls back what was done in
intel_power_domains_init_hw(), so rename and move it accordingly. This
allows us adding a cleanup function later for intel_power_domains_init()
in a cleaner way.

No functional change.

v2:
- Fix checkpatch error adding missing param name to function
  declaration. (Paulo)

Cc: Ville Syrjala <ville.syrjala at linux.intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni at intel.com>
Cc: Jani Nikula <jani.nikula at intel.com>
Signed-off-by: Imre Deak <imre.deak at intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
---
 drivers/gpu/drm/i915/i915_drv.c         |  4 +-
 drivers/gpu/drm/i915/intel_drv.h        |  2 +-
 drivers/gpu/drm/i915/intel_runtime_pm.c | 69 ++++++++++++++++-----------------
 3 files changed, 37 insertions(+), 38 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 64e0ea4bef67..e92f374521fc 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -712,7 +712,7 @@ static int i915_load_modeset_init(struct drm_device *dev)
 	intel_teardown_gmbus(dev_priv);
 cleanup_csr:
 	intel_csr_ucode_fini(dev_priv);
-	intel_power_domains_fini(dev_priv);
+	intel_power_domains_fini_hw(dev_priv);
 	vga_switcheroo_unregister_client(pdev);
 cleanup_vga_client:
 	vga_client_register(pdev, NULL, NULL, NULL);
@@ -1462,7 +1462,7 @@ void i915_driver_unload(struct drm_device *dev)
 	i915_gem_fini(dev_priv);
 	intel_fbc_cleanup_cfb(dev_priv);
 
-	intel_power_domains_fini(dev_priv);
+	intel_power_domains_fini_hw(dev_priv);
 
 	i915_driver_cleanup_hw(dev_priv);
 	i915_driver_cleanup_mmio(dev_priv);
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 1ad7c1124bef..3576ab5735b1 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1948,8 +1948,8 @@ int intel_psr_wait_for_idle(const struct intel_crtc_state *new_crtc_state);
 
 /* intel_runtime_pm.c */
 int intel_power_domains_init(struct drm_i915_private *);
-void intel_power_domains_fini(struct drm_i915_private *);
 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume);
+void intel_power_domains_fini_hw(struct drm_i915_private *dev_priv);
 void intel_power_domains_suspend(struct drm_i915_private *dev_priv);
 void intel_power_domains_verify_state(struct drm_i915_private *dev_priv);
 void bxt_display_core_init(struct drm_i915_private *dev_priv, bool resume);
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index 11cb2a70e3fe..e82aa38bfd23 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -2902,41 +2902,6 @@ int intel_power_domains_init(struct drm_i915_private *dev_priv)
 	return 0;
 }
 
-/**
- * intel_power_domains_fini - finalizes the power domain structures
- * @dev_priv: i915 device instance
- *
- * Finalizes the power domain structures for @dev_priv depending upon the
- * supported platform. This function also disables runtime pm and ensures that
- * the device stays powered up so that the driver can be reloaded.
- */
-void intel_power_domains_fini(struct drm_i915_private *dev_priv)
-{
-	struct device *kdev = &dev_priv->drm.pdev->dev;
-
-	/*
-	 * The i915.ko module is still not prepared to be loaded when
-	 * the power well is not enabled, so just enable it in case
-	 * we're going to unload/reload.
-	 * The following also reacquires the RPM reference the core passed
-	 * to the driver during loading, which is dropped in
-	 * intel_runtime_pm_enable(). We have to hand back the control of the
-	 * device to the core with this reference held.
-	 */
-	intel_display_set_init_power(dev_priv, true);
-
-	/* Remove the refcount we took to keep power well support disabled. */
-	if (!i915_modparams.disable_power_well)
-		intel_display_power_put(dev_priv, POWER_DOMAIN_INIT);
-
-	/*
-	 * Remove the refcount we took in intel_runtime_pm_enable() in case
-	 * the platform doesn't support runtime PM.
-	 */
-	if (!HAS_RUNTIME_PM(dev_priv))
-		pm_runtime_put(kdev);
-}
-
 static void intel_power_domains_sync_hw(struct drm_i915_private *dev_priv)
 {
 	struct i915_power_domains *power_domains = &dev_priv->power_domains;
@@ -3577,6 +3542,40 @@ void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume)
 }
 
 /**
+ * intel_power_domains_fini_hw - deinitialize hw power domain state
+ * @dev_priv: i915 device instance
+ *
+ * De-initializes the display power domain HW state. It also ensures that the
+ * device stays powered up so that the driver can be reloaded.
+ */
+void intel_power_domains_fini_hw(struct drm_i915_private *dev_priv)
+{
+	struct device *kdev = &dev_priv->drm.pdev->dev;
+
+	/*
+	 * The i915.ko module is still not prepared to be loaded when
+	 * the power well is not enabled, so just enable it in case
+	 * we're going to unload/reload.
+	 * The following also reacquires the RPM reference the core passed
+	 * to the driver during loading, which is dropped in
+	 * intel_runtime_pm_enable(). We have to hand back the control of the
+	 * device to the core with this reference held.
+	 */
+	intel_display_set_init_power(dev_priv, true);
+
+	/* Remove the refcount we took to keep power well support disabled. */
+	if (!i915_modparams.disable_power_well)
+		intel_display_power_put(dev_priv, POWER_DOMAIN_INIT);
+
+	/*
+	 * Remove the refcount we took in intel_runtime_pm_enable() in case
+	 * the platform doesn't support runtime PM.
+	 */
+	if (!HAS_RUNTIME_PM(dev_priv))
+		pm_runtime_put(kdev);
+}
+
+/**
  * intel_power_domains_suspend - suspend power domain state
  * @dev_priv: i915 device instance
  *
-- 
2.13.2