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.syrj...@linux.intel.com>
Signed-off-by: Mahesh Kumar <mahesh1.ku...@intel.com>
Cc: dri-devel@lists.freedesktop.org
Cc: Tomeu Vizoso <tomeu.viz...@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinch...@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);
--
2.16.2
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