This reverts commit e8fa5671183c80342d520ad81d14fa79a9d4a680.

Don't wait for first CRC during crtc_crc_open. It avoids one frame wait during open. If application want to wait after read call, it can use poll/read blocking read() call.

Suggested-by: Ville Syrjälä ville.syrjala@linux.intel.com Signed-off-by: Mahesh Kumar mahesh1.kumar@intel.com Cc: dri-devel@lists.freedesktop.org Cc: Tomeu Vizoso tomeu.vizoso@collabora.com Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com --- drivers/gpu/drm/drm_debugfs_crc.c | 16 ---------------- 1 file changed, 16 deletions(-)

diff --git a/drivers/gpu/drm/drm_debugfs_crc.c b/drivers/gpu/drm/drm_debugfs_crc.c index 7386391636e3..973b3968ad17 100644 --- a/drivers/gpu/drm/drm_debugfs_crc.c +++ b/drivers/gpu/drm/drm_debugfs_crc.c @@ -228,24 +228,8 @@ static int crtc_crc_open(struct inode *inode, struct file *filep) if (ret) goto err;

- spin_lock_irq(&crc->lock); - /* - * Only return once we got a first frame, so userspace doesn't have to - * guess when this particular piece of HW will be ready to start - * generating CRCs. - */ - ret = wait_event_interruptible_lock_irq(crc->wq, - crtc_crc_data_count(crc), - crc->lock); - spin_unlock_irq(&crc->lock); - - if (ret) - goto err_disable; - return 0;

-err_disable: - crtc->funcs->set_crc_source(crtc, NULL); err: spin_lock_irq(&crc->lock); crtc_crc_cleanup(crc);