Hi Laurent, Thankyou for the patch.
On 15/08/17 23:57, Laurent Pinchart wrote: > The KMS API supports enabling a CRTC without any plane. To enable that > use case, we need to start the pipeline when configuring the LIF, > instead of when enabling the first plane. Tested and verified on Salvator-X ES1.0 using the KMS Test suite, including suspend/resume, in combination with the "[PATCH 0/3] R-Car DU: Clip planes to screen boundaries" series. Tested-by: Kieran Bingham <[email protected]> > Signed-off-by: Laurent Pinchart <[email protected]> Reviewed-by: Kieran Bingham <[email protected]> > --- > drivers/media/platform/vsp1/vsp1_drm.c | 37 > +++++++++++++++++++++++++--------- > 1 file changed, 27 insertions(+), 10 deletions(-) > > This patch is based on top of the VSP+DU large patch series queued through > Dave's DRM tree for v4.14-rc1. It doesn't can't be merged independently > through the linux-media tree for the same kernel version. As the change is not > urgent, it can be delayed until v4.15-rc1. > > diff --git a/drivers/media/platform/vsp1/vsp1_drm.c > b/drivers/media/platform/vsp1/vsp1_drm.c > index 4dfbeac8f42c..7ce69f23f50a 100644 > --- a/drivers/media/platform/vsp1/vsp1_drm.c > +++ b/drivers/media/platform/vsp1/vsp1_drm.c > @@ -84,8 +84,12 @@ int vsp1_du_setup_lif(struct device *dev, unsigned int > pipe_index, > struct vsp1_drm_pipeline *drm_pipe; > struct vsp1_pipeline *pipe; > struct vsp1_bru *bru; > + struct vsp1_entity *entity; > + struct vsp1_entity *next; > + struct vsp1_dl_list *dl; > struct v4l2_subdev_format format; > const char *bru_name; > + unsigned long flags; > unsigned int i; > int ret; > > @@ -250,6 +254,29 @@ int vsp1_du_setup_lif(struct device *dev, unsigned int > pipe_index, > vsp1_write(vsp1, VI6_DISP_IRQ_STA, 0); > vsp1_write(vsp1, VI6_DISP_IRQ_ENB, 0); > > + /* Configure all entities in the pipeline. */ > + dl = vsp1_dl_list_get(pipe->output->dlm); > + > + list_for_each_entry_safe(entity, next, &pipe->entities, list_pipe) { > + vsp1_entity_route_setup(entity, pipe, dl); > + > + if (entity->ops->configure) { > + entity->ops->configure(entity, pipe, dl, > + VSP1_ENTITY_PARAMS_INIT); > + entity->ops->configure(entity, pipe, dl, > + VSP1_ENTITY_PARAMS_RUNTIME); > + entity->ops->configure(entity, pipe, dl, > + VSP1_ENTITY_PARAMS_PARTITION); > + } Hrm ... this configure section now has quite a lot duplicated from the vsp1_du_atomic_flush(). Perhaps we could abstract that part out to a common function - but I don't think that's essential. > + } > + > + vsp1_dl_list_commit(dl); > + > + /* Start the pipeline. */ > + spin_lock_irqsave(&pipe->irqlock, flags); > + vsp1_pipeline_run(pipe); > + spin_unlock_irqrestore(&pipe->irqlock, flags); > + > dev_dbg(vsp1->dev, "%s: pipeline enabled\n", __func__); > > return 0; > @@ -488,7 +515,6 @@ void vsp1_du_atomic_flush(struct device *dev, unsigned > int pipe_index) > struct vsp1_entity *next; > struct vsp1_dl_list *dl; > const char *bru_name; > - unsigned long flags; > unsigned int i; > int ret; > > @@ -570,15 +596,6 @@ void vsp1_du_atomic_flush(struct device *dev, unsigned > int pipe_index) > } > > vsp1_dl_list_commit(dl); > - > - /* Start or stop the pipeline if needed. */ > - if (!drm_pipe->enabled && pipe->num_inputs) { > - spin_lock_irqsave(&pipe->irqlock, flags); > - vsp1_pipeline_run(pipe); > - spin_unlock_irqrestore(&pipe->irqlock, flags); > - } else if (drm_pipe->enabled && !pipe->num_inputs) { > - vsp1_pipeline_stop(pipe); > - } > } > EXPORT_SYMBOL_GPL(vsp1_du_atomic_flush); > >
