drm/irq: Unexport drm_vblank_on/off

Only remaining use was in amdgpu, and trivial to convert over to
drm_crtc_vblank_* variants.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161114090255.31595-5-daniel.vetter@ffwll.ch

1 files changed, 21 insertions, 59 deletions

diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 1681e919b866..273625a85036 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -93,7 +93,7 @@ static void store_vblank(struct drm_device *dev, unsigned int pipe,
  * Reset the stored timestamp for the current vblank count to correspond
  * to the last vblank occurred.
  *
- * Only to be called from drm_vblank_on().
+ * Only to be called from drm_crtc_vblank_on().
  *
  * Note: caller must hold dev->vbl_lock since this reads & writes
  * device vblank fields.
@@ -306,7 +306,7 @@ static void vblank_disable_and_save(struct drm_device *dev, unsigned int pipe)
          * Always update the count and timestamp to maintain the
          * appearance that the counter has been ticking all along until
          * this time. This makes the count account for the entire time
-         * between drm_vblank_on() and drm_vblank_off().
+         * between drm_crtc_vblank_on() and drm_crtc_vblank_off().
          */
         drm_update_vblank_count(dev, pipe, 0);
 
@@ -1255,21 +1255,20 @@ void drm_crtc_wait_one_vblank(struct drm_crtc *crtc)
 EXPORT_SYMBOL(drm_crtc_wait_one_vblank);
 
 /**
- * drm_vblank_off - disable vblank events on a CRTC
- * @dev: DRM device
- * @pipe: CRTC index
+ * drm_crtc_vblank_off - disable vblank events on a CRTC
+ * @crtc: CRTC in question
  *
  * Drivers can use this function to shut down the vblank interrupt handling when
  * disabling a crtc. This function ensures that the latest vblank frame count is
- * stored so that drm_vblank_on() can restore it again.
+ * stored so that drm_vblank_on can restore it again.
  *
  * Drivers must use this function when the hardware vblank counter can get
  * reset, e.g. when suspending.
- *
- * This is the legacy version of drm_crtc_vblank_off().
  */
-void drm_vblank_off(struct drm_device *dev, unsigned int pipe)
+void drm_crtc_vblank_off(struct drm_crtc *crtc)
 {
+        struct drm_device *dev = crtc->dev;
+        unsigned int pipe = drm_crtc_index(crtc);
         struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
         struct drm_pending_vblank_event *e, *t;
         struct timeval now;
@@ -1285,7 +1284,8 @@ void drm_vblank_off(struct drm_device *dev, unsigned int pipe)
         DRM_DEBUG_VBL("crtc %d, vblank enabled %d, inmodeset %d\n",
                       pipe, vblank->enabled, vblank->inmodeset);
 
-        /* Avoid redundant vblank disables without previous drm_vblank_on(). */
+        /* Avoid redundant vblank disables without previous
+         * drm_crtc_vblank_on(). */
         if (drm_core_check_feature(dev, DRIVER_ATOMIC) || !vblank->inmodeset)
                 vblank_disable_and_save(dev, pipe);
 
@@ -1316,25 +1316,6 @@ void drm_vblank_off(struct drm_device *dev, unsigned int pipe)
         }
         spin_unlock_irqrestore(&dev->event_lock, irqflags);
 }
-EXPORT_SYMBOL(drm_vblank_off);
-
-/**
- * drm_crtc_vblank_off - disable vblank events on a CRTC
- * @crtc: CRTC in question
- *
- * Drivers can use this function to shut down the vblank interrupt handling when
- * disabling a crtc. This function ensures that the latest vblank frame count is
- * stored so that drm_vblank_on can restore it again.
- *
- * Drivers must use this function when the hardware vblank counter can get
- * reset, e.g. when suspending.
- *
- * This is the native kms version of drm_vblank_off().
- */
-void drm_crtc_vblank_off(struct drm_crtc *crtc)
-{
-        drm_vblank_off(crtc->dev, drm_crtc_index(crtc));
-}
 EXPORT_SYMBOL(drm_crtc_vblank_off);
 
 /**
@@ -1370,19 +1351,18 @@ void drm_crtc_vblank_reset(struct drm_crtc *crtc)
 EXPORT_SYMBOL(drm_crtc_vblank_reset);
 
 /**
- * drm_vblank_on - enable vblank events on a CRTC
- * @dev: DRM device
- * @pipe: CRTC index
+ * drm_crtc_vblank_on - enable vblank events on a CRTC
+ * @crtc: CRTC in question
  *
  * This functions restores the vblank interrupt state captured with
- * drm_vblank_off() again. Note that calls to drm_vblank_on() and
- * drm_vblank_off() can be unbalanced and so can also be unconditionally called
+ * drm_crtc_vblank_off() again. Note that calls to drm_crtc_vblank_on() and
+ * drm_crtc_vblank_off() can be unbalanced and so can also be unconditionally called
  * in driver load code to reflect the current hardware state of the crtc.
- *
- * This is the legacy version of drm_crtc_vblank_on().
  */
-void drm_vblank_on(struct drm_device *dev, unsigned int pipe)
+void drm_crtc_vblank_on(struct drm_crtc *crtc)
 {
+        struct drm_device *dev = crtc->dev;
+        unsigned int pipe = drm_crtc_index(crtc);
         struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
         unsigned long irqflags;
 
@@ -1409,23 +1389,6 @@ void drm_vblank_on(struct drm_device *dev, unsigned int pipe)
                 WARN_ON(drm_vblank_enable(dev, pipe));
         spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
 }
-EXPORT_SYMBOL(drm_vblank_on);
-
-/**
- * drm_crtc_vblank_on - enable vblank events on a CRTC
- * @crtc: CRTC in question
- *
- * This functions restores the vblank interrupt state captured with
- * drm_vblank_off() again. Note that calls to drm_vblank_on() and
- * drm_vblank_off() can be unbalanced and so can also be unconditionally called
- * in driver load code to reflect the current hardware state of the crtc.
- *
- * This is the native kms version of drm_vblank_on().
- */
-void drm_crtc_vblank_on(struct drm_crtc *crtc)
-{
-        drm_vblank_on(crtc->dev, drm_crtc_index(crtc));
-}
 EXPORT_SYMBOL(drm_crtc_vblank_on);
 
 static void drm_legacy_vblank_pre_modeset(struct drm_device *dev,
@@ -1548,11 +1511,10 @@ static int drm_queue_vblank_event(struct drm_device *dev, unsigned int pipe,
         spin_lock_irqsave(&dev->event_lock, flags);
 
         /*
-         * drm_vblank_off() might have been called after we called
-         * drm_vblank_get(). drm_vblank_off() holds event_lock
-         * around the vblank disable, so no need for further locking.
-         * The reference from drm_vblank_get() protects against
-         * vblank disable from another source.
+         * drm_crtc_vblank_off() might have been called after we called
+         * drm_vblank_get(). drm_crtc_vblank_off() holds event_lock around the
+         * vblank disable, so no need for further locking.  The reference from
+         * drm_vblank_get() protects against vblank disable from another source.
          */
         if (!vblank->enabled) {
                 ret = -EINVAL;