If we want to have vblank on both pipelines at the same time, we need to call drm_vblank_init with num_crtcs = 2.
Instead, since the crtc init calls correctly set mode_config.num_crtc, we can move the drm_vblank_init call to after the crtc init code is called, which is the component bind part. Then we can just pass mode_config.num_crtc in.
Signed-off-by: Chen-Yu Tsai wens@csie.org --- drivers/gpu/drm/sun4i/sun4i_drv.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c index 2ff4233fe2da..a2012638d5f7 100644 --- a/drivers/gpu/drm/sun4i/sun4i_drv.c +++ b/drivers/gpu/drm/sun4i/sun4i_drv.c @@ -106,11 +106,6 @@ static int sun4i_drv_bind(struct device *dev) goto free_drm; }
- /* drm_vblank_init calls kcalloc, which can fail */ - ret = drm_vblank_init(drm, 1); - if (ret) - goto free_mem_region; - drm_mode_config_init(drm);
ret = component_bind_all(drm->dev, drm); @@ -119,6 +114,11 @@ static int sun4i_drv_bind(struct device *dev) goto cleanup_mode_config; }
+ /* drm_vblank_init calls kcalloc, which can fail */ + ret = drm_vblank_init(drm, drm->mode_config.num_crtc); + if (ret) + goto free_mem_region; + drm->irq_enabled = true;
/* Remove early framebuffers (ie. simplefb) */