diff options
Diffstat (limited to 'drivers/gpu/drm/drm_vblank.c')
| -rw-r--r-- | drivers/gpu/drm/drm_vblank.c | 31 |
1 files changed, 12 insertions, 19 deletions
diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c index da7b0b0c1090..bcf346b3e486 100644 --- a/drivers/gpu/drm/drm_vblank.c +++ b/drivers/gpu/drm/drm_vblank.c @@ -30,6 +30,7 @@ #include <drm/drm_crtc.h> #include <drm/drm_drv.h> #include <drm/drm_framebuffer.h> +#include <drm/drm_managed.h> #include <drm/drm_modeset_helper_vtables.h> #include <drm/drm_print.h> #include <drm/drm_vblank.h> @@ -425,14 +426,10 @@ static void vblank_disable_fn(struct timer_list *t) spin_unlock_irqrestore(&dev->vbl_lock, irqflags); } -void drm_vblank_cleanup(struct drm_device *dev) +static void drm_vblank_init_release(struct drm_device *dev, void *ptr) { unsigned int pipe; - /* Bail if the driver didn't call drm_vblank_init() */ - if (dev->num_crtcs == 0) - return; - for (pipe = 0; pipe < dev->num_crtcs; pipe++) { struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; @@ -441,10 +438,6 @@ void drm_vblank_cleanup(struct drm_device *dev) del_timer_sync(&vblank->disable_timer); } - - kfree(dev->vblank); - - dev->num_crtcs = 0; } /** @@ -453,25 +446,29 @@ void drm_vblank_cleanup(struct drm_device *dev) * @num_crtcs: number of CRTCs supported by @dev * * This function initializes vblank support for @num_crtcs display pipelines. - * Cleanup is handled by the DRM core, or through calling drm_dev_fini() for - * drivers with a &drm_driver.release callback. + * Cleanup is handled automatically through a cleanup function added with + * drmm_add_action(). * * Returns: * Zero on success or a negative error code on failure. */ int drm_vblank_init(struct drm_device *dev, unsigned int num_crtcs) { - int ret = -ENOMEM; + int ret; unsigned int i; spin_lock_init(&dev->vbl_lock); spin_lock_init(&dev->vblank_time_lock); + dev->vblank = drmm_kcalloc(dev, num_crtcs, sizeof(*dev->vblank), GFP_KERNEL); + if (!dev->vblank) + return -ENOMEM; + dev->num_crtcs = num_crtcs; - dev->vblank = kcalloc(num_crtcs, sizeof(*dev->vblank), GFP_KERNEL); - if (!dev->vblank) - goto err; + ret = drmm_add_action(dev, drm_vblank_init_release, NULL); + if (ret) + return ret; for (i = 0; i < num_crtcs; i++) { struct drm_vblank_crtc *vblank = &dev->vblank[i]; @@ -486,10 +483,6 @@ int drm_vblank_init(struct drm_device *dev, unsigned int num_crtcs) DRM_INFO("Supports vblank timestamp caching Rev 2 (21.10.2013).\n"); return 0; - -err: - dev->num_crtcs = 0; - return ret; } EXPORT_SYMBOL(drm_vblank_init); |