On Tue Apr 1 16:22:02 2025 +0200, Jacopo Mondi wrote:
> The vsp1_dl library allows to program a display list and feed it
> continuously to the VSP2. As an alternative operation mode, the library
> allows to program the VSP2 in 'single shot' mode, where a display list
> is submitted to the VSP on request only.
>
> Currently the 'single shot' mode is only available when the VSP2 is
> controlled by userspace, while it works in continuous mode when driven
> by DRM, as frames have to be submitted to the display continuously.
>
> For the VSPX use case, where there is no uapi support, we should however
> work in single-shot mode as the ISP driver programs the VSPX on
> request.
>
> Initialize the display lists in single shot mode in case the VSP1 is
> controlled by userspace or in case the pipeline features an IIF entity,
> as in the VSPX case.
>
> Reviewed-by: Laurent Pinchart <[email protected]>
> Reviewed-by: Niklas Söderlund <[email protected]>
> Tested-by: Niklas Söderlund <[email protected]>
> Signed-off-by: Jacopo Mondi <[email protected]>
> Link:
> https://lore.kernel.org/r/[email protected]
> Signed-off-by: Laurent Pinchart <[email protected]>
> Signed-off-by: Hans Verkuil <[email protected]>
Patch committed.
Thanks,
Hans Verkuil
drivers/media/platform/renesas/vsp1/vsp1_dl.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
---
diff --git a/drivers/media/platform/renesas/vsp1/vsp1_dl.c
b/drivers/media/platform/renesas/vsp1/vsp1_dl.c
index ad3fa1c9cc73..bb8228b19824 100644
--- a/drivers/media/platform/renesas/vsp1/vsp1_dl.c
+++ b/drivers/media/platform/renesas/vsp1/vsp1_dl.c
@@ -1099,7 +1099,12 @@ struct vsp1_dl_manager *vsp1_dlm_create(struct
vsp1_device *vsp1,
return NULL;
dlm->index = index;
- dlm->singleshot = vsp1->info->uapi;
+ /*
+ * uapi = single shot mode;
+ * DRM = continuous mode;
+ * VSPX = single shot mode;
+ */
+ dlm->singleshot = vsp1->info->uapi || vsp1->iif;
dlm->vsp1 = vsp1;
spin_lock_init(&dlm->lock);
