linux-kernel - [PATCH 3.19 083/123] drm/i915: add dev_to

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Date:	Tue, 24 Mar 2015 16:46:32 +0100
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Imre Deak <imre.deak@...el.com>,
	Takashi Iwai <tiwai@...e.de>,
	Daniel Vetter <daniel.vetter@...ll.ch>
Subject: [PATCH 3.19 083/123] drm/i915: add dev_to_i915 helper

3.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Imre Deak <imre.deak@...el.com>

commit 888d0d421663313739a8bf93459c6ba61fd4b121 upstream.

This will be needed by later patches, so factor it out.

No functional change.

v2:
- s/dev_to_i915_priv/dev_to_i915/ (Jani)
- don't use the helper in i915_pm_suspend (Chris)
- simplify the helper (Chris)
v3:
- remove redundant upcasting in the helper (Daniel)

Signed-off-by: Imre Deak <imre.deak@...el.com>
Reviewed-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Daniel Vetter <daniel.vetter@...ll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/i915/i915_drv.c |    9 +++------
 drivers/gpu/drm/i915/i915_drv.h |    5 +++++
 2 files changed, 8 insertions(+), 6 deletions(-)

--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -934,8 +934,7 @@ static int i915_pm_suspend(struct device
 
 static int i915_pm_suspend_late(struct device *dev)
 {
-	struct pci_dev *pdev = to_pci_dev(dev);
-	struct drm_device *drm_dev = pci_get_drvdata(pdev);
+	struct drm_device *drm_dev = dev_to_i915(dev)->dev;
 
 	/*
 	 * We have a suspedn ordering issue with the snd-hda driver also
@@ -954,8 +953,7 @@ static int i915_pm_suspend_late(struct d
 
 static int i915_pm_resume_early(struct device *dev)
 {
-	struct pci_dev *pdev = to_pci_dev(dev);
-	struct drm_device *drm_dev = pci_get_drvdata(pdev);
+	struct drm_device *drm_dev = dev_to_i915(dev)->dev;
 
 	if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;
@@ -965,8 +963,7 @@ static int i915_pm_resume_early(struct d
 
 static int i915_pm_resume(struct device *dev)
 {
-	struct pci_dev *pdev = to_pci_dev(dev);
-	struct drm_device *drm_dev = pci_get_drvdata(pdev);
+	struct drm_device *drm_dev = dev_to_i915(dev)->dev;
 
 	if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1781,6 +1781,11 @@ static inline struct drm_i915_private *t
 	return dev->dev_private;
 }
 
+static inline struct drm_i915_private *dev_to_i915(struct device *dev)
+{
+	return to_i915(dev_get_drvdata(dev));
+}
+
 /* Iterate over initialised rings */
 #define for_each_ring(ring__, dev_priv__, i__) \
 	for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \


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