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[v2,02/16] media: platform: rzg2l-cru: Mark sink pads with MUST_CONNECT flag

Message ID 20240910175357.229075-3-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive)
State Superseded
Delegated to: Kieran Bingham
Headers show
Series media: platform: rzg2l-cru: CSI-2 and CRU enhancements | expand

Commit Message

Lad, Prabhakar Sept. 10, 2024, 5:53 p.m. UTC
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Mark the sink pads with the MEDIA_PAD_FL_MUST_CONNECT flag to ensure
pipeline validation fails if it is not connected.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c | 2 +-
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c   | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

Comments

Laurent Pinchart Sept. 27, 2024, 10:13 p.m. UTC | #1
Hi Prabhakar,

Thank you for the patch.

On Tue, Sep 10, 2024 at 06:53:43PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> Mark the sink pads with the MEDIA_PAD_FL_MUST_CONNECT flag to ensure
> pipeline validation fails if it is not connected.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> ---
>  drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c | 2 +-
>  drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c   | 3 ++-
>  2 files changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
> index 19e0ba9596c9..69cd45b26951 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
> @@ -209,7 +209,7 @@ static int rzg2l_cru_media_init(struct rzg2l_cru_dev *cru)
>  	const struct of_device_id *match;
>  	int ret;
>  
> -	cru->pad.flags = MEDIA_PAD_FL_SINK;
> +	cru->pad.flags = MEDIA_PAD_FL_SINK | MEDIA_PAD_FL_MUST_CONNECT;

The corresponding link is ENABLED and IMMUTABLE, so this will not have
any effect. It shouldn't cause any issue though, and makes things more
explicit.

>  	ret = media_entity_pads_init(&cru->vdev.entity, 1, &cru->pad);
>  	if (ret)
>  		return ret;
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> index 9f0ea1de50da..db48118fc817 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> @@ -217,7 +217,8 @@ int rzg2l_cru_ip_subdev_register(struct rzg2l_cru_dev *cru)
>  	ip->subdev.entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER;
>  	ip->subdev.entity.ops = &rzg2l_cru_ip_entity_ops;
>  
> -	ip->pads[RZG2L_CRU_IP_SINK].flags = MEDIA_PAD_FL_SINK;
> +	ip->pads[RZG2L_CRU_IP_SINK].flags = MEDIA_PAD_FL_SINK |
> +					    MEDIA_PAD_FL_MUST_CONNECT;

Same here. For this pad, the MUST_CONNECT flag will come handy when
adding support for the parallel input, as the link will not be immutable
anymore.

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

>  	ip->pads[RZG2L_CRU_IP_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
>  
>  	ret = media_entity_pads_init(&ip->subdev.entity, 2, ip->pads);
diff mbox series

Patch

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
index 19e0ba9596c9..69cd45b26951 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
@@ -209,7 +209,7 @@  static int rzg2l_cru_media_init(struct rzg2l_cru_dev *cru)
 	const struct of_device_id *match;
 	int ret;
 
-	cru->pad.flags = MEDIA_PAD_FL_SINK;
+	cru->pad.flags = MEDIA_PAD_FL_SINK | MEDIA_PAD_FL_MUST_CONNECT;
 	ret = media_entity_pads_init(&cru->vdev.entity, 1, &cru->pad);
 	if (ret)
 		return ret;
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
index 9f0ea1de50da..db48118fc817 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
@@ -217,7 +217,8 @@  int rzg2l_cru_ip_subdev_register(struct rzg2l_cru_dev *cru)
 	ip->subdev.entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER;
 	ip->subdev.entity.ops = &rzg2l_cru_ip_entity_ops;
 
-	ip->pads[RZG2L_CRU_IP_SINK].flags = MEDIA_PAD_FL_SINK;
+	ip->pads[RZG2L_CRU_IP_SINK].flags = MEDIA_PAD_FL_SINK |
+					    MEDIA_PAD_FL_MUST_CONNECT;
 	ip->pads[RZG2L_CRU_IP_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
 
 	ret = media_entity_pads_init(&ip->subdev.entity, 2, ip->pads);