drm: unexport function drm_vblank_no_hw_counter()
The function drm_vblank_no_hw_counter() is now only used in core vblank
wrapper code. Let's unexport it by making it a static function.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-4-git-send-email-shawnguo@kernel.org
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 646b3e5..1906723 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -89,6 +89,16 @@ static void store_vblank(struct drm_device *dev, unsigned int pipe,
write_sequnlock(&vblank->seqlock);
}
+/*
+ * "No hw counter" fallback implementation of .get_vblank_counter() hook,
+ * if there is no useable hardware frame counter available.
+ */
+static u32 drm_vblank_no_hw_counter(struct drm_device *dev, unsigned int pipe)
+{
+ WARN_ON_ONCE(dev->max_vblank_count != 0);
+ return 0;
+}
+
static u32 __get_vblank_counter(struct drm_device *dev, unsigned int pipe)
{
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
@@ -1748,21 +1758,3 @@ bool drm_crtc_handle_vblank(struct drm_crtc *crtc)
return drm_handle_vblank(crtc->dev, drm_crtc_index(crtc));
}
EXPORT_SYMBOL(drm_crtc_handle_vblank);
-
-/**
- * drm_vblank_no_hw_counter - "No hw counter" implementation of .get_vblank_counter()
- * @dev: DRM device
- * @pipe: CRTC for which to read the counter
- *
- * Drivers can plug this into the .get_vblank_counter() function if
- * there is no useable hardware frame counter available.
- *
- * Returns:
- * 0
- */
-u32 drm_vblank_no_hw_counter(struct drm_device *dev, unsigned int pipe)
-{
- WARN_ON_ONCE(dev->max_vblank_count != 0);
- return 0;
-}
-EXPORT_SYMBOL(drm_vblank_no_hw_counter);
