[PATCH v2 17/25] drm/i915: factor out gen6_update_ring_freq

[Imre Deak <imre.deak@intel.com>]

This is needed by the next patch moving the call out from platform
specific RPM callbacks to platform independent code.

No functional change.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.c      |  2 --
 drivers/gpu/drm/i915/intel_display.c |  2 --
 drivers/gpu/drm/i915/intel_pm.c      | 18 +++++++++++++++---
 3 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index f3f9a33..afc31e3 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -899,9 +899,7 @@ static void snb_runtime_resume(struct drm_i915_private *dev_priv)
 
 	intel_init_pch_refclk(dev);
 	i915_gem_init_swizzling(dev);
-	mutex_lock(&dev_priv->rps.hw_lock);
 	gen6_update_ring_freq(dev);
-	mutex_unlock(&dev_priv->rps.hw_lock);
 }
 
 static void hsw_runtime_resume(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index bda79ec..596ae69 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7088,9 +7088,7 @@ void hsw_disable_pc8(struct drm_i915_private *dev_priv)
 
 	intel_prepare_ddi(dev);
 	i915_gem_init_swizzling(dev);
-	mutex_lock(&dev_priv->rps.hw_lock);
 	gen6_update_ring_freq(dev);
-	mutex_unlock(&dev_priv->rps.hw_lock);
 }
 
 static void snb_modeset_global_resources(struct drm_device *dev)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 3068f51..f88d64d 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3522,7 +3522,7 @@ static void gen6_enable_rps(struct drm_device *dev)
 	gen6_gt_force_wake_put(dev_priv, FORCEWAKE_ALL);
 }
 
-void gen6_update_ring_freq(struct drm_device *dev)
+static void __gen6_update_ring_freq(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int min_freq = 15;
@@ -3592,6 +3592,18 @@ void gen6_update_ring_freq(struct drm_device *dev)
 	}
 }
 
+void gen6_update_ring_freq(struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+
+	if (!(INTEL_INFO(dev)->gen >= 6 && !IS_VALLEYVIEW(dev)))
+		return;
+
+	mutex_lock(&dev_priv->rps.hw_lock);
+	__gen6_update_ring_freq(dev);
+	mutex_unlock(&dev_priv->rps.hw_lock);
+}
+
 int valleyview_rps_max_freq(struct drm_i915_private *dev_priv)
 {
 	u32 val, rp0;
@@ -4563,10 +4575,10 @@ static void intel_gen6_powersave_work(struct work_struct *work)
 		valleyview_enable_rps(dev);
 	} else if (IS_BROADWELL(dev)) {
 		gen8_enable_rps(dev);
-		gen6_update_ring_freq(dev);
+		__gen6_update_ring_freq(dev);
 	} else {
 		gen6_enable_rps(dev);
-		gen6_update_ring_freq(dev);
+		__gen6_update_ring_freq(dev);
 	}
 	dev_priv->rps.enabled = true;
 	mutex_unlock(&dev_priv->rps.hw_lock);
-- 
1.8.4