[PATCH v5 00/22] media: platform: rzg2l-cru: CSI-2 and CRU enhancements

[PATCH v5 00/22] media: platform: rzg2l-cru: CSI-2 and CRU enhancements

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Hi All,

This patch series aims to add the below:
- Retrieve virtual channel from remote subdev
- Support to capture 8bit Bayer formats.

v4->v5
- Updated .link_validate function to drop local variable, invalid
  format check and input/output code fmt check
- Split up patch 10/17 from v4 into multiple patches (10/11/12/13/14/15)/22

v3->v4
- Added {} in rzg2l_cru_ip_format_to_fmt() for the for loop (in patch 10/17)
- Added checks for formats in .link_validate callback (in patch 13/17)
- Got rid of icndmr local variable in rzg2l_cru_initialize_image_conv()
 (in patch 15/17)
- Moved macro ICnDMR_YCMODE_UYVY to rzg2l-cru-regs.h
- Included RB tags from Laurent for patches 15 and 17

v2->v3
- Added MUST_CONNECT flag for source pads
- Used ARRAY_SIZE() instead of NR_OF_RZG2L_CSI2_PAD
- Implemented rzg2l_cru_ip_format_to_fmt() and rzg2l_cru_ip_index_to_fmt()
- Dropped checking fmt in rzg2l_cru_initialize_image_conv()
- Dropped fse->index checks
- Implemented link_validate for video node
- Re-used rzg2l_cru_ip_format_to_fmt() to fetch icndmr details
- Moved register definitions to separate header file
- Updated subject lines and commit messages
- Collected RB tag

v1->v2
- Fixed retrieving VC from subdev
- Fixed review comments pointed by Laurent
  * Refactored supported CRU formats
  * Added MUST_CONNECT flag wherever required
  * Dropped `channel` member from `struct

v1:
Link: https://lore.kernel.org/all/20240906173947.282402-1-prabhakar.mahadev-lad.rj@bp.renesas.com/

Cheers,
Prabhakar

Lad Prabhakar (22):
  media: rzg2l-cru: Use RZG2L_CRU_IP_SINK/SOURCE enum entries
  media: rzg2l-cru: Mark sink and source pad with MUST_CONNECT flag
  media: rzg2l-cru: csi2: Mark sink and source pad with MUST_CONNECT
    flag
  media: rzg2l-cru: csi2: Use ARRAY_SIZE() in media_entity_pads_init()
  media: rzg2l-cru: csi2: Implement .get_frame_desc()
  media: rzg2l-cru: Retrieve virtual channel information
  media: rzg2l-cru: Remove `channel` member from `struct rzg2l_cru_csi`
  media: rzg2l-cru: Use MIPI CSI-2 data types for ICnMC_INF definitions
  media: rzg2l-cru: Remove unused fields from rzg2l_cru_ip_format struct
  media: rzg2l-cru: Remove unnecessary WARN_ON check in format func
  media: rzg2l-cru: Simplify configuring input format for image
    processing
  media: rzg2l-cru: Inline calculating image size
  media: rzg2l-cru: Simplify handling of supported formats
  media: rzg2l-cru: Inline calculating bytesperline
  media: rzg2l-cru: Make use of v4l2_format_info() helpers
  media: rzg2l-cru: Use `rzg2l_cru_ip_formats` array in enum_frame_size
  media: rzg2l-cru: csi2: Remove unused field from rzg2l_csi2_format
  media: rzg2l-cru: video: Implement .link_validate() callback
  media: rzg2l-cru: csi2: Use rzg2l_csi2_formats array in
    enum_frame_size
  media: rzg2l-cru: Refactor ICnDMR register configuration
  media: rzg2l-cru: Add support to capture 8bit raw sRGB
  media: rzg2l-cru: Move register definitions to a separate file

 .../platform/renesas/rzg2l-cru/rzg2l-core.c   |   3 +-
 .../renesas/rzg2l-cru/rzg2l-cru-regs.h        |  80 +++++
 .../platform/renesas/rzg2l-cru/rzg2l-cru.h    |  26 +-
 .../platform/renesas/rzg2l-cru/rzg2l-csi2.c   |  39 ++-
 .../platform/renesas/rzg2l-cru/rzg2l-ip.c     |  80 ++++-
 .../platform/renesas/rzg2l-cru/rzg2l-video.c  | 291 +++++++-----------
 6 files changed, 312 insertions(+), 207 deletions(-)
 create mode 100644 drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru-regs.h

-- 
2.43.0

[PATCH v5 01/22] media: rzg2l-cru: Use RZG2L_CRU_IP_SINK/SOURCE enum entries

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Use enum values (`RZG2L_CRU_IP_SINK` and `RZG2L_CRU_IP_SOURCE`) instead
of hardcoded array indices.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
index ac8ebae4ed07..9f0ea1de50da 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
@@ -217,8 +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[0].flags = MEDIA_PAD_FL_SINK;
-	ip->pads[1].flags = MEDIA_PAD_FL_SOURCE;
+	ip->pads[RZG2L_CRU_IP_SINK].flags = MEDIA_PAD_FL_SINK;
+	ip->pads[RZG2L_CRU_IP_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
 
 	ret = media_entity_pads_init(&ip->subdev.entity, 2, ip->pads);
 	if (ret)
-- 
2.43.0

[PATCH v5 02/22] media: rzg2l-cru: Mark sink and source pad with MUST_CONNECT flag

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Mark the sink and source pad 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>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c | 2 +-
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c   | 6 ++++--
 2 files changed, 5 insertions(+), 3 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;
 	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..700d8b704689 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
@@ -217,8 +217,10 @@ 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_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
+	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 |
+					      MEDIA_PAD_FL_MUST_CONNECT;
 
 	ret = media_entity_pads_init(&ip->subdev.entity, 2, ip->pads);
 	if (ret)
-- 
2.43.0

[PATCH v5 03/22] media: rzg2l-cru: csi2: Mark sink and source pad with MUST_CONNECT flag

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Mark the sink and source pad 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>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
index c7fdee347ac8..2f4c87ede8bf 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
@@ -795,13 +795,15 @@ static int rzg2l_csi2_probe(struct platform_device *pdev)
 	csi2->subdev.entity.function = MEDIA_ENT_F_VID_IF_BRIDGE;
 	csi2->subdev.entity.ops = &rzg2l_csi2_entity_ops;
 
-	csi2->pads[RZG2L_CSI2_SINK].flags = MEDIA_PAD_FL_SINK;
+	csi2->pads[RZG2L_CSI2_SINK].flags = MEDIA_PAD_FL_SINK |
+					    MEDIA_PAD_FL_MUST_CONNECT;
 	/*
 	 * TODO: RZ/G2L CSI2 supports 4 virtual channels, as virtual
 	 * channels should be implemented by streams API which is under
 	 * development lets hardcode to VC0 for now.
 	 */
-	csi2->pads[RZG2L_CSI2_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
+	csi2->pads[RZG2L_CSI2_SOURCE].flags = MEDIA_PAD_FL_SOURCE |
+					      MEDIA_PAD_FL_MUST_CONNECT;
 	ret = media_entity_pads_init(&csi2->subdev.entity, 2, csi2->pads);
 	if (ret)
 		goto error_pm;
-- 
2.43.0

[PATCH v5 04/22] media: rzg2l-cru: csi2: Use ARRAY_SIZE() in media_entity_pads_init()

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

The media_entity_pads_init() function was previously hardcoded to use a
magic number for the number of pads. Replace the magic number with the
ARRAY_SIZE() macro to determine the number of pads dynamically.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
index 2f4c87ede8bf..abacf53b944c 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
@@ -804,7 +804,8 @@ static int rzg2l_csi2_probe(struct platform_device *pdev)
 	 */
 	csi2->pads[RZG2L_CSI2_SOURCE].flags = MEDIA_PAD_FL_SOURCE |
 					      MEDIA_PAD_FL_MUST_CONNECT;
-	ret = media_entity_pads_init(&csi2->subdev.entity, 2, csi2->pads);
+	ret = media_entity_pads_init(&csi2->subdev.entity, ARRAY_SIZE(csi2->pads),
+				     csi2->pads);
 	if (ret)
 		goto error_pm;
 
-- 
2.43.0

[PATCH v5 05/22] media: rzg2l-cru: csi2: Implement .get_frame_desc()

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

The RZ/G2L CRU requires information about which VCx to process data from,
among the four available VCs. To obtain this information, the
.get_frame_desc() routine is implemented. This routine, in turn, calls
.get_frame_desc() on the remote sensor connected to the CSI2 bridge.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 .../platform/renesas/rzg2l-cru/rzg2l-csi2.c   | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
index abacf53b944c..3fd0be6a3b65 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
@@ -582,6 +582,25 @@ static int rzg2l_csi2_enum_frame_size(struct v4l2_subdev *sd,
 	return 0;
 }
 
+static int rzg2l_csi2_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad,
+				     struct v4l2_mbus_frame_desc *fd)
+{
+	struct rzg2l_csi2 *csi2 = sd_to_csi2(sd);
+	struct media_pad *remote_pad;
+
+	if (!csi2->remote_source)
+		return -ENODEV;
+
+	remote_pad = media_pad_remote_pad_unique(&csi2->pads[RZG2L_CSI2_SINK]);
+	if (IS_ERR(remote_pad)) {
+		dev_err(csi2->dev, "can't get source pad of %s (%ld)\n",
+			csi2->remote_source->name, PTR_ERR(remote_pad));
+		return PTR_ERR(remote_pad);
+	}
+	return v4l2_subdev_call(csi2->remote_source, pad, get_frame_desc,
+				remote_pad->index, fd);
+}
+
 static const struct v4l2_subdev_video_ops rzg2l_csi2_video_ops = {
 	.s_stream = rzg2l_csi2_s_stream,
 	.pre_streamon = rzg2l_csi2_pre_streamon,
@@ -593,6 +612,7 @@ static const struct v4l2_subdev_pad_ops rzg2l_csi2_pad_ops = {
 	.enum_frame_size = rzg2l_csi2_enum_frame_size,
 	.set_fmt = rzg2l_csi2_set_format,
 	.get_fmt = v4l2_subdev_get_fmt,
+	.get_frame_desc = rzg2l_csi2_get_frame_desc,
 };
 
 static const struct v4l2_subdev_ops rzg2l_csi2_subdev_ops = {
-- 
2.43.0

[PATCH v5 06/22] media: rzg2l-cru: Retrieve virtual channel information

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

The RZ/G2L CRU needs to configure the ICnMC.VCSEL bits to specify which
virtual channel should be processed from the four available VCs. To
retrieve this information from the connected subdevice, the
.get_frame_desc() function is called.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 .../platform/renesas/rzg2l-cru/rzg2l-cru.h    |  5 +++
 .../platform/renesas/rzg2l-cru/rzg2l-ip.c     |  5 ---
 .../platform/renesas/rzg2l-cru/rzg2l-video.c  | 34 +++++++++++++++++++
 3 files changed, 39 insertions(+), 5 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
index 174760239548..8fbd45c43763 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
@@ -31,6 +31,11 @@
 #define RZG2L_CRU_MIN_INPUT_HEIGHT	240
 #define RZG2L_CRU_MAX_INPUT_HEIGHT	4095
 
+enum rzg2l_csi2_pads {
+	RZG2L_CRU_IP_SINK = 0,
+	RZG2L_CRU_IP_SOURCE,
+};
+
 /**
  * enum rzg2l_cru_dma_state - DMA states
  * @RZG2L_CRU_DMA_STOPPED:   No operation in progress
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
index 700d8b704689..aee7d4ba70b0 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
@@ -18,11 +18,6 @@ static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
 	{ .code = MEDIA_BUS_FMT_UYVY8_1X16,	.datatype = 0x1e, .bpp = 16 },
 };
 
-enum rzg2l_csi2_pads {
-	RZG2L_CRU_IP_SINK = 0,
-	RZG2L_CRU_IP_SOURCE,
-};
-
 static const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code)
 {
 	unsigned int i;
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index bbf4674f888d..7cd33eb1939c 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -433,12 +433,46 @@ void rzg2l_cru_stop_image_processing(struct rzg2l_cru_dev *cru)
 	spin_unlock_irqrestore(&cru->qlock, flags);
 }
 
+static int rzg2l_cru_get_virtual_channel(struct rzg2l_cru_dev *cru)
+{
+	struct v4l2_mbus_frame_desc fd = { };
+	struct media_pad *remote_pad;
+	int ret;
+
+	remote_pad = media_pad_remote_pad_unique(&cru->ip.pads[RZG2L_CRU_IP_SINK]);
+	ret = v4l2_subdev_call(cru->ip.remote, pad, get_frame_desc, remote_pad->index, &fd);
+	if (ret < 0 && ret != -ENOIOCTLCMD) {
+		dev_err(cru->dev, "get_frame_desc failed on IP remote subdev\n");
+		return ret;
+	}
+	/* If remote subdev does not implement .get_frame_desc default to VC0. */
+	if (ret == -ENOIOCTLCMD)
+		return 0;
+
+	if (fd.type != V4L2_MBUS_FRAME_DESC_TYPE_CSI2) {
+		dev_err(cru->dev, "get_frame_desc returned invalid bus type %d\n", fd.type);
+		return -EINVAL;
+	}
+
+	if (!fd.num_entries) {
+		dev_err(cru->dev, "get_frame_desc returned zero entries\n");
+		return -EINVAL;
+	}
+
+	return fd.entry[0].bus.csi2.vc;
+}
+
 int rzg2l_cru_start_image_processing(struct rzg2l_cru_dev *cru)
 {
 	struct v4l2_mbus_framefmt *fmt = rzg2l_cru_ip_get_src_fmt(cru);
 	unsigned long flags;
 	int ret;
 
+	ret = rzg2l_cru_get_virtual_channel(cru);
+	if (ret < 0)
+		return ret;
+	cru->csi.channel = ret;
+
 	spin_lock_irqsave(&cru->qlock, flags);
 
 	/* Select a video input */
-- 
2.43.0

[PATCH v5 07/22] media: rzg2l-cru: Remove `channel` member from `struct rzg2l_cru_csi`

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Remove the CSI virtual channel number from `struct rzg2l_cru_csi`.
Instead, pass the CSI virtual channel number as an argument to
`rzg2l_cru_csi2_setup()`.

Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 .../media/platform/renesas/rzg2l-cru/rzg2l-core.c  |  1 -
 .../media/platform/renesas/rzg2l-cru/rzg2l-cru.h   |  1 -
 .../media/platform/renesas/rzg2l-cru/rzg2l-video.c | 14 ++++++++------
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
index 69cd45b26951..b21a66e2ce5c 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
@@ -72,7 +72,6 @@ static int rzg2l_cru_group_notify_complete(struct v4l2_async_notifier *notifier)
 			source->name, sink->name);
 		return ret;
 	}
-	cru->csi.channel = 0;
 	cru->ip.remote = cru->csi.subdev;
 
 	/* Create media device link between CRU IP <-> CRU OUTPUT */
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
index 8fbd45c43763..4fe24bdde5b2 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
@@ -53,7 +53,6 @@ enum rzg2l_cru_dma_state {
 struct rzg2l_cru_csi {
 	struct v4l2_async_connection *asd;
 	struct v4l2_subdev *subdev;
-	u32 channel;
 };
 
 struct rzg2l_cru_ip {
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index 7cd33eb1939c..9ab7ef33c9da 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -301,7 +301,7 @@ static void rzg2l_cru_initialize_axi(struct rzg2l_cru_dev *cru)
 }
 
 static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru, bool *input_is_yuv,
-				 struct v4l2_mbus_framefmt *ip_sd_fmt)
+				 struct v4l2_mbus_framefmt *ip_sd_fmt, u8 csi_vc)
 {
 	u32 icnmc;
 
@@ -319,19 +319,20 @@ static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru, bool *input_is_yuv,
 	icnmc |= (rzg2l_cru_read(cru, ICnMC) & ~ICnMC_INF_MASK);
 
 	/* Set virtual channel CSI2 */
-	icnmc |= ICnMC_VCSEL(cru->csi.channel);
+	icnmc |= ICnMC_VCSEL(csi_vc);
 
 	rzg2l_cru_write(cru, ICnMC, icnmc);
 }
 
 static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
-					   struct v4l2_mbus_framefmt *ip_sd_fmt)
+					   struct v4l2_mbus_framefmt *ip_sd_fmt,
+					   u8 csi_vc)
 {
 	bool output_is_yuv = false;
 	bool input_is_yuv = false;
 	u32 icndmr;
 
-	rzg2l_cru_csi2_setup(cru, &input_is_yuv, ip_sd_fmt);
+	rzg2l_cru_csi2_setup(cru, &input_is_yuv, ip_sd_fmt, csi_vc);
 
 	/* Output format */
 	switch (cru->format.pixelformat) {
@@ -466,12 +467,13 @@ int rzg2l_cru_start_image_processing(struct rzg2l_cru_dev *cru)
 {
 	struct v4l2_mbus_framefmt *fmt = rzg2l_cru_ip_get_src_fmt(cru);
 	unsigned long flags;
+	u8 csi_vc;
 	int ret;
 
 	ret = rzg2l_cru_get_virtual_channel(cru);
 	if (ret < 0)
 		return ret;
-	cru->csi.channel = ret;
+	csi_vc = ret;
 
 	spin_lock_irqsave(&cru->qlock, flags);
 
@@ -489,7 +491,7 @@ int rzg2l_cru_start_image_processing(struct rzg2l_cru_dev *cru)
 	rzg2l_cru_initialize_axi(cru);
 
 	/* Initialize image convert */
-	ret = rzg2l_cru_initialize_image_conv(cru, fmt);
+	ret = rzg2l_cru_initialize_image_conv(cru, fmt, csi_vc);
 	if (ret) {
 		spin_unlock_irqrestore(&cru->qlock, flags);
 		return ret;
-- 
2.43.0

[PATCH v5 08/22] media: rzg2l-cru: Use MIPI CSI-2 data types for ICnMC_INF definitions

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

The INF field in the ICnMC register accepts data type codes as specified
in the MIPI CSI-2 v2.1 specification. This patch introduces the
`ICnMC_INF()` macro to use the MIPI CSI-2 data types, which are available
in the `media/mipi-csi2.h` header.

Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index 9ab7ef33c9da..de88c0fab961 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -15,6 +15,7 @@
 #include <linux/delay.h>
 #include <linux/pm_runtime.h>
 
+#include <media/mipi-csi2.h>
 #include <media/v4l2-ioctl.h>
 #include <media/videobuf2-dma-contig.h>
 
@@ -77,8 +78,7 @@
 /* CRU Image Processing Main Control Register */
 #define ICnMC				0x208
 #define ICnMC_CSCTHR			BIT(5)
-#define ICnMC_INF_YUV8_422		(0x1e << 16)
-#define ICnMC_INF_USER			(0x30 << 16)
+#define ICnMC_INF(x)			((x) << 16)
 #define ICnMC_VCSEL(x)			((x) << 22)
 #define ICnMC_INF_MASK			GENMASK(21, 16)
 
@@ -307,12 +307,12 @@ static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru, bool *input_is_yuv,
 
 	switch (ip_sd_fmt->code) {
 	case MEDIA_BUS_FMT_UYVY8_1X16:
-		icnmc = ICnMC_INF_YUV8_422;
+		icnmc = ICnMC_INF(MIPI_CSI2_DT_YUV422_8B);
 		*input_is_yuv = true;
 		break;
 	default:
 		*input_is_yuv = false;
-		icnmc = ICnMC_INF_USER;
+		icnmc = ICnMC_INF(MIPI_CSI2_DT_USER_DEFINED(0));
 		break;
 	}
 
-- 
2.43.0

[PATCH v5 09/22] media: rzg2l-cru: Remove unused fields from rzg2l_cru_ip_format struct

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Simplified the `rzg2l_cru_ip_format` struct by removing the unused
`datatype` and `bpp` fields from the structure in `rzg2l-ip.c`.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
index aee7d4ba70b0..7b006a0bfaae 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
@@ -10,12 +10,10 @@
 
 struct rzg2l_cru_ip_format {
 	u32 code;
-	unsigned int datatype;
-	unsigned int bpp;
 };
 
 static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
-	{ .code = MEDIA_BUS_FMT_UYVY8_1X16,	.datatype = 0x1e, .bpp = 16 },
+	{ .code = MEDIA_BUS_FMT_UYVY8_1X16, },
 };
 
 static const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code)
-- 
2.43.0

[PATCH v5 10/22] media: rzg2l-cru: Remove unnecessary WARN_ON check in format func

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

`WARN_ON(!fmt)` check in `rzg2l_cru_format_bytesperline()` is unnecessary
because the `rzg2l_cru_format_align()` function ensures that a valid
`pixelformat` is set before calling `rzg2l_cru_format_bytesperline()`. As
a result, `rzg2l_cru_format_from_pixel()` is guaranteed to return a
non-NULL value, making the check redundant.

Additionally, the return type of `rzg2l_cru_format_bytesperline()` is
`u32`, but the code returned `-EINVAL`, a negative value. This mismatch is
now  resolved by removing the invalid error return path.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index de88c0fab961..401ef7be58ec 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -835,9 +835,6 @@ static u32 rzg2l_cru_format_bytesperline(struct v4l2_pix_format *pix)
 
 	fmt = rzg2l_cru_format_from_pixel(pix->pixelformat);
 
-	if (WARN_ON(!fmt))
-		return -EINVAL;
-
 	return pix->width * fmt->bpp[0];
 }
 
-- 
2.43.0

Re: [PATCH v5 10/22] media: rzg2l-cru: Remove unnecessary WARN_ON check in format func

[Laurent Pinchart]

Hi Prabhakar,

Thank you for the patch.

On Fri, Oct 11, 2024 at 06:30:40PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> `WARN_ON(!fmt)` check in `rzg2l_cru_format_bytesperline()` is unnecessary
> because the `rzg2l_cru_format_align()` function ensures that a valid
> `pixelformat` is set before calling `rzg2l_cru_format_bytesperline()`. As
> a result, `rzg2l_cru_format_from_pixel()` is guaranteed to return a
> non-NULL value, making the check redundant.
> 
> Additionally, the return type of `rzg2l_cru_format_bytesperline()` is
> `u32`, but the code returned `-EINVAL`, a negative value. This mismatch is
> now  resolved by removing the invalid error return path.

s/now  /now /

> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

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

> ---
>  drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> index de88c0fab961..401ef7be58ec 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> @@ -835,9 +835,6 @@ static u32 rzg2l_cru_format_bytesperline(struct v4l2_pix_format *pix)
>  
>  	fmt = rzg2l_cru_format_from_pixel(pix->pixelformat);
>  
> -	if (WARN_ON(!fmt))
> -		return -EINVAL;
> -
>  	return pix->width * fmt->bpp[0];
>  }
>  

-- 
Regards,

Laurent Pinchart

Re: [PATCH v5 10/22] media: rzg2l-cru: Remove unnecessary WARN_ON check in format func

[Lad, Prabhakar]

Hi Laurent,

Thank you for the review.

On Tue, Oct 15, 2024 at 11:22 AM Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> Hi Prabhakar,
>
> Thank you for the patch.
>
> On Fri, Oct 11, 2024 at 06:30:40PM +0100, Prabhakar wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > `WARN_ON(!fmt)` check in `rzg2l_cru_format_bytesperline()` is unnecessary
> > because the `rzg2l_cru_format_align()` function ensures that a valid
> > `pixelformat` is set before calling `rzg2l_cru_format_bytesperline()`. As
> > a result, `rzg2l_cru_format_from_pixel()` is guaranteed to return a
> > non-NULL value, making the check redundant.
> >
> > Additionally, the return type of `rzg2l_cru_format_bytesperline()` is
> > `u32`, but the code returned `-EINVAL`, a negative value. This mismatch is
> > now  resolved by removing the invalid error return path.
>
> s/now  /now /
>
Oops, I will drop the extra space.

Cheers,
Prabhakar

[PATCH v5 11/22] media: rzg2l-cru: Simplify configuring input format for image processing

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Move the `rzg2l_cru_ip_format` struct to `rzg2l-cru.h` for better
accessibility and add a `datatype` member to it, allowing the
configuration of the ICnMC register based on the MIPI CSI2 data type.

Also, move the `rzg2l_cru_ip_code_to_fmt()` function to `rzg2l-cru.h`
to streamline format lookup and make it more accessible across the
driver.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 .../media/platform/renesas/rzg2l-cru/rzg2l-cru.h    | 12 ++++++++++++
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c | 13 +++++++------
 .../media/platform/renesas/rzg2l-cru/rzg2l-video.c  | 13 +++++++------
 3 files changed, 26 insertions(+), 12 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
index 4fe24bdde5b2..9b1ba015df3b 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
@@ -62,6 +62,16 @@ struct rzg2l_cru_ip {
 	struct v4l2_subdev *remote;
 };
 
+/**
+ * struct rzg2l_cru_ip_format - CRU IP format
+ * @code: Media bus code
+ * @datatype: MIPI CSI2 data type
+ */
+struct rzg2l_cru_ip_format {
+	u32 code;
+	u32 datatype;
+};
+
 /**
  * struct rzg2l_cru_dev - Renesas CRU device structure
  * @dev:		(OF) device
@@ -150,4 +160,6 @@ int rzg2l_cru_ip_subdev_register(struct rzg2l_cru_dev *cru);
 void rzg2l_cru_ip_subdev_unregister(struct rzg2l_cru_dev *cru);
 struct v4l2_mbus_framefmt *rzg2l_cru_ip_get_src_fmt(struct rzg2l_cru_dev *cru);
 
+const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code);
+
 #endif
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
index 7b006a0bfaae..8f9683bf31fa 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
@@ -6,17 +6,18 @@
  */
 
 #include <linux/delay.h>
-#include "rzg2l-cru.h"
+#include <media/mipi-csi2.h>
 
-struct rzg2l_cru_ip_format {
-	u32 code;
-};
+#include "rzg2l-cru.h"
 
 static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
-	{ .code = MEDIA_BUS_FMT_UYVY8_1X16, },
+	{
+		.code = MEDIA_BUS_FMT_UYVY8_1X16,
+		.datatype = MIPI_CSI2_DT_YUV422_8B,
+	},
 };
 
-static const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code)
+const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code)
 {
 	unsigned int i;
 
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index 401ef7be58ec..37fea2bed00f 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -301,18 +301,17 @@ static void rzg2l_cru_initialize_axi(struct rzg2l_cru_dev *cru)
 }
 
 static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru, bool *input_is_yuv,
-				 struct v4l2_mbus_framefmt *ip_sd_fmt, u8 csi_vc)
+				 const struct rzg2l_cru_ip_format *ip_fmt,
+				 u8 csi_vc)
 {
-	u32 icnmc;
+	u32 icnmc = ICnMC_INF(ip_fmt->datatype);
 
-	switch (ip_sd_fmt->code) {
+	switch (ip_fmt->code) {
 	case MEDIA_BUS_FMT_UYVY8_1X16:
-		icnmc = ICnMC_INF(MIPI_CSI2_DT_YUV422_8B);
 		*input_is_yuv = true;
 		break;
 	default:
 		*input_is_yuv = false;
-		icnmc = ICnMC_INF(MIPI_CSI2_DT_USER_DEFINED(0));
 		break;
 	}
 
@@ -328,11 +327,13 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
 					   struct v4l2_mbus_framefmt *ip_sd_fmt,
 					   u8 csi_vc)
 {
+	const struct rzg2l_cru_ip_format *cru_ip_fmt;
 	bool output_is_yuv = false;
 	bool input_is_yuv = false;
 	u32 icndmr;
 
-	rzg2l_cru_csi2_setup(cru, &input_is_yuv, ip_sd_fmt, csi_vc);
+	cru_ip_fmt = rzg2l_cru_ip_code_to_fmt(ip_sd_fmt->code);
+	rzg2l_cru_csi2_setup(cru, &input_is_yuv, cru_ip_fmt, csi_vc);
 
 	/* Output format */
 	switch (cru->format.pixelformat) {
-- 
2.43.0

Re: [PATCH v5 11/22] media: rzg2l-cru: Simplify configuring input format for image processing

[Laurent Pinchart]

Hi Prabhakar,

Thank you for the patch.

On Fri, Oct 11, 2024 at 06:30:41PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> Move the `rzg2l_cru_ip_format` struct to `rzg2l-cru.h` for better
> accessibility and add a `datatype` member to it, allowing the
> configuration of the ICnMC register based on the MIPI CSI2 data type.
> 
> Also, move the `rzg2l_cru_ip_code_to_fmt()` function to `rzg2l-cru.h`
> to streamline format lookup and make it more accessible across the
> driver.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

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

> ---
>  .../media/platform/renesas/rzg2l-cru/rzg2l-cru.h    | 12 ++++++++++++
>  drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c | 13 +++++++------
>  .../media/platform/renesas/rzg2l-cru/rzg2l-video.c  | 13 +++++++------
>  3 files changed, 26 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
> index 4fe24bdde5b2..9b1ba015df3b 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
> @@ -62,6 +62,16 @@ struct rzg2l_cru_ip {
>  	struct v4l2_subdev *remote;
>  };
>  
> +/**
> + * struct rzg2l_cru_ip_format - CRU IP format
> + * @code: Media bus code
> + * @datatype: MIPI CSI2 data type
> + */
> +struct rzg2l_cru_ip_format {
> +	u32 code;
> +	u32 datatype;
> +};
> +
>  /**
>   * struct rzg2l_cru_dev - Renesas CRU device structure
>   * @dev:		(OF) device
> @@ -150,4 +160,6 @@ int rzg2l_cru_ip_subdev_register(struct rzg2l_cru_dev *cru);
>  void rzg2l_cru_ip_subdev_unregister(struct rzg2l_cru_dev *cru);
>  struct v4l2_mbus_framefmt *rzg2l_cru_ip_get_src_fmt(struct rzg2l_cru_dev *cru);
>  
> +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code);
> +
>  #endif
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> index 7b006a0bfaae..8f9683bf31fa 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> @@ -6,17 +6,18 @@
>   */
>  
>  #include <linux/delay.h>
> -#include "rzg2l-cru.h"
> +#include <media/mipi-csi2.h>
>  
> -struct rzg2l_cru_ip_format {
> -	u32 code;
> -};
> +#include "rzg2l-cru.h"
>  
>  static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
> -	{ .code = MEDIA_BUS_FMT_UYVY8_1X16, },
> +	{
> +		.code = MEDIA_BUS_FMT_UYVY8_1X16,
> +		.datatype = MIPI_CSI2_DT_YUV422_8B,
> +	},
>  };
>  
> -static const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code)
> +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code)
>  {
>  	unsigned int i;
>  
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> index 401ef7be58ec..37fea2bed00f 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> @@ -301,18 +301,17 @@ static void rzg2l_cru_initialize_axi(struct rzg2l_cru_dev *cru)
>  }
>  
>  static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru, bool *input_is_yuv,
> -				 struct v4l2_mbus_framefmt *ip_sd_fmt, u8 csi_vc)
> +				 const struct rzg2l_cru_ip_format *ip_fmt,
> +				 u8 csi_vc)
>  {
> -	u32 icnmc;
> +	u32 icnmc = ICnMC_INF(ip_fmt->datatype);
>  
> -	switch (ip_sd_fmt->code) {
> +	switch (ip_fmt->code) {
>  	case MEDIA_BUS_FMT_UYVY8_1X16:
> -		icnmc = ICnMC_INF(MIPI_CSI2_DT_YUV422_8B);
>  		*input_is_yuv = true;
>  		break;
>  	default:
>  		*input_is_yuv = false;
> -		icnmc = ICnMC_INF(MIPI_CSI2_DT_USER_DEFINED(0));
>  		break;
>  	}
>  
> @@ -328,11 +327,13 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
>  					   struct v4l2_mbus_framefmt *ip_sd_fmt,
>  					   u8 csi_vc)
>  {
> +	const struct rzg2l_cru_ip_format *cru_ip_fmt;
>  	bool output_is_yuv = false;
>  	bool input_is_yuv = false;
>  	u32 icndmr;
>  
> -	rzg2l_cru_csi2_setup(cru, &input_is_yuv, ip_sd_fmt, csi_vc);
> +	cru_ip_fmt = rzg2l_cru_ip_code_to_fmt(ip_sd_fmt->code);
> +	rzg2l_cru_csi2_setup(cru, &input_is_yuv, cru_ip_fmt, csi_vc);
>  
>  	/* Output format */
>  	switch (cru->format.pixelformat) {
> 

-- 
Regards,

Laurent Pinchart

[PATCH v5 12/22] media: rzg2l-cru: Inline calculating image size

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

The `rzg2l_cru_format_sizeimage()` function has been inlined into the
`rzg2l_cru_format_align()` function as it has a single caller.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index 37fea2bed00f..6a4f0455dc9c 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -839,11 +839,6 @@ static u32 rzg2l_cru_format_bytesperline(struct v4l2_pix_format *pix)
 	return pix->width * fmt->bpp[0];
 }
 
-static u32 rzg2l_cru_format_sizeimage(struct v4l2_pix_format *pix)
-{
-	return pix->bytesperline * pix->height;
-}
-
 static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
 				   struct v4l2_pix_format *pix)
 {
@@ -868,7 +863,7 @@ static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
 			      &pix->height, 240, RZG2L_CRU_MAX_INPUT_HEIGHT, 2, 0);
 
 	pix->bytesperline = rzg2l_cru_format_bytesperline(pix);
-	pix->sizeimage = rzg2l_cru_format_sizeimage(pix);
+	pix->sizeimage = pix->bytesperline * pix->height;
 
 	dev_dbg(cru->dev, "Format %ux%u bpl: %u size: %u\n",
 		pix->width, pix->height, pix->bytesperline, pix->sizeimage);
-- 
2.43.0

Re: [PATCH v5 12/22] media: rzg2l-cru: Inline calculating image size

[Laurent Pinchart]

Hi Prabhakar,

Thank you for the patch.

On Fri, Oct 11, 2024 at 06:30:42PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> The `rzg2l_cru_format_sizeimage()` function has been inlined into the
> `rzg2l_cru_format_align()` function as it has a single caller.

The commit message should use the imperative mood:

Inline the `rzg2l_cru_format_sizeimage()` function into its single
caller as the function is trivial and is not expected to be called
anywhere else.

> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

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

> ---
>  drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> index 37fea2bed00f..6a4f0455dc9c 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> @@ -839,11 +839,6 @@ static u32 rzg2l_cru_format_bytesperline(struct v4l2_pix_format *pix)
>  	return pix->width * fmt->bpp[0];
>  }
>  
> -static u32 rzg2l_cru_format_sizeimage(struct v4l2_pix_format *pix)
> -{
> -	return pix->bytesperline * pix->height;
> -}
> -
>  static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
>  				   struct v4l2_pix_format *pix)
>  {
> @@ -868,7 +863,7 @@ static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
>  			      &pix->height, 240, RZG2L_CRU_MAX_INPUT_HEIGHT, 2, 0);
>  
>  	pix->bytesperline = rzg2l_cru_format_bytesperline(pix);
> -	pix->sizeimage = rzg2l_cru_format_sizeimage(pix);
> +	pix->sizeimage = pix->bytesperline * pix->height;
>  
>  	dev_dbg(cru->dev, "Format %ux%u bpl: %u size: %u\n",
>  		pix->width, pix->height, pix->bytesperline, pix->sizeimage);

-- 
Regards,

Laurent Pinchart

Re: [PATCH v5 12/22] media: rzg2l-cru: Inline calculating image size

[Lad, Prabhakar]

Hi Laurent,

Thank you for the review.

On Tue, Oct 15, 2024 at 11:22 AM Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> Hi Prabhakar,
>
> Thank you for the patch.
>
> On Fri, Oct 11, 2024 at 06:30:42PM +0100, Prabhakar wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > The `rzg2l_cru_format_sizeimage()` function has been inlined into the
> > `rzg2l_cru_format_align()` function as it has a single caller.
>
> The commit message should use the imperative mood:
>
> Inline the `rzg2l_cru_format_sizeimage()` function into its single
> caller as the function is trivial and is not expected to be called
> anywhere else.
>
I will update the commit message as above.

> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Cheers,
Prabhakar

[PATCH v5 13/22] media: rzg2l-cru: Simplify handling of supported formats

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Refactor the handling of supported formats in the RZ/G2L CRU driver by
moving the `rzg2l_cru_ip_format` struct to the common header for reuse
across multiple files and adding `pixelformat` and `bpp` members to it.
This change centralizes format handling, making it easier to manage and
extend.

New helper functions, `rzg2l_cru_ip_format_to_fmt()` and
`rzg2l_cru_ip_index_to_fmt()`, are added to retrieve format information
based on 4CC format and index, respectively. These helpers allow the
removal of the now redundant `rzg2l_cru_format_from_pixel()` function.

The new helpers are used in `rzg2l_cru_format_bytesperline()`,
`rzg2l_cru_format_align()`, and `rzg2l_cru_enum_fmt_vid_cap()`,
streamlining the handling of supported formats and improving code
maintainability.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 .../platform/renesas/rzg2l-cru/rzg2l-cru.h    |  6 ++++
 .../platform/renesas/rzg2l-cru/rzg2l-ip.c     | 22 +++++++++++++
 .../platform/renesas/rzg2l-cru/rzg2l-video.c  | 33 +++++--------------
 3 files changed, 37 insertions(+), 24 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
index 9b1ba015df3b..327516272e53 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
@@ -66,10 +66,14 @@ struct rzg2l_cru_ip {
  * struct rzg2l_cru_ip_format - CRU IP format
  * @code: Media bus code
  * @datatype: MIPI CSI2 data type
+ * @format: 4CC format identifier (V4L2_PIX_FMT_*)
+ * @bpp: bytes per pixel
  */
 struct rzg2l_cru_ip_format {
 	u32 code;
 	u32 datatype;
+	u32 format;
+	u8 bpp;
 };
 
 /**
@@ -161,5 +165,7 @@ void rzg2l_cru_ip_subdev_unregister(struct rzg2l_cru_dev *cru);
 struct v4l2_mbus_framefmt *rzg2l_cru_ip_get_src_fmt(struct rzg2l_cru_dev *cru);
 
 const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code);
+const struct rzg2l_cru_ip_format *rzg2l_cru_ip_format_to_fmt(u32 format);
+const struct rzg2l_cru_ip_format *rzg2l_cru_ip_index_to_fmt(u32 index);
 
 #endif
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
index 8f9683bf31fa..a40b0184b955 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
@@ -14,6 +14,8 @@ static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
 	{
 		.code = MEDIA_BUS_FMT_UYVY8_1X16,
 		.datatype = MIPI_CSI2_DT_YUV422_8B,
+		.format = V4L2_PIX_FMT_UYVY,
+		.bpp = 2,
 	},
 };
 
@@ -28,6 +30,26 @@ const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code)
 	return NULL;
 }
 
+const struct rzg2l_cru_ip_format *rzg2l_cru_ip_format_to_fmt(u32 format)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(rzg2l_cru_ip_formats); i++) {
+		if (rzg2l_cru_ip_formats[i].format == format)
+			return &rzg2l_cru_ip_formats[i];
+	}
+
+	return NULL;
+}
+
+const struct rzg2l_cru_ip_format *rzg2l_cru_ip_index_to_fmt(u32 index)
+{
+	if (index >= ARRAY_SIZE(rzg2l_cru_ip_formats))
+		return NULL;
+
+	return &rzg2l_cru_ip_formats[index];
+}
+
 struct v4l2_mbus_framefmt *rzg2l_cru_ip_get_src_fmt(struct rzg2l_cru_dev *cru)
 {
 	struct v4l2_subdev_state *state;
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index 6a4f0455dc9c..a0fa4542ac43 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -812,37 +812,19 @@ int rzg2l_cru_dma_register(struct rzg2l_cru_dev *cru)
  * V4L2 stuff
  */
 
-static const struct v4l2_format_info rzg2l_cru_formats[] = {
-	{
-		.format = V4L2_PIX_FMT_UYVY,
-		.bpp[0] = 2,
-	},
-};
-
-const struct v4l2_format_info *rzg2l_cru_format_from_pixel(u32 format)
-{
-	unsigned int i;
-
-	for (i = 0; i < ARRAY_SIZE(rzg2l_cru_formats); i++)
-		if (rzg2l_cru_formats[i].format == format)
-			return rzg2l_cru_formats + i;
-
-	return NULL;
-}
-
 static u32 rzg2l_cru_format_bytesperline(struct v4l2_pix_format *pix)
 {
-	const struct v4l2_format_info *fmt;
+	const struct rzg2l_cru_ip_format *fmt;
 
-	fmt = rzg2l_cru_format_from_pixel(pix->pixelformat);
+	fmt = rzg2l_cru_ip_format_to_fmt(pix->pixelformat);
 
-	return pix->width * fmt->bpp[0];
+	return pix->width * fmt->bpp;
 }
 
 static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
 				   struct v4l2_pix_format *pix)
 {
-	if (!rzg2l_cru_format_from_pixel(pix->pixelformat))
+	if (!rzg2l_cru_ip_format_to_fmt(pix->pixelformat))
 		pix->pixelformat = RZG2L_CRU_DEFAULT_FORMAT;
 
 	switch (pix->field) {
@@ -934,10 +916,13 @@ static int rzg2l_cru_g_fmt_vid_cap(struct file *file, void *priv,
 static int rzg2l_cru_enum_fmt_vid_cap(struct file *file, void *priv,
 				      struct v4l2_fmtdesc *f)
 {
-	if (f->index >= ARRAY_SIZE(rzg2l_cru_formats))
+	const struct rzg2l_cru_ip_format *fmt;
+
+	fmt = rzg2l_cru_ip_index_to_fmt(f->index);
+	if (!fmt)
 		return -EINVAL;
 
-	f->pixelformat = rzg2l_cru_formats[f->index].format;
+	f->pixelformat = fmt->format;
 
 	return 0;
 }
-- 
2.43.0

Re: [PATCH v5 13/22] media: rzg2l-cru: Simplify handling of supported formats

[Laurent Pinchart]

Hi Prabhakar,

Thank you for the patch.

On Fri, Oct 11, 2024 at 06:30:43PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> Refactor the handling of supported formats in the RZ/G2L CRU driver by
> moving the `rzg2l_cru_ip_format` struct to the common header for reuse
> across multiple files and adding `pixelformat` and `bpp` members to it.

The structure is already in a common header. You can write

Refactor the handling of supported formats in the RZ/G2L CRU driver by
adding `pixelformat` and `bpp` members to the `rzg2l_cru_ip_format`
structure.

> This change centralizes format handling, making it easier to manage and
> extend.
> 
> New helper functions, `rzg2l_cru_ip_format_to_fmt()` and
> `rzg2l_cru_ip_index_to_fmt()`, are added to retrieve format information
> based on 4CC format and index, respectively. These helpers allow the
> removal of the now redundant `rzg2l_cru_format_from_pixel()` function.
> 
> The new helpers are used in `rzg2l_cru_format_bytesperline()`,
> `rzg2l_cru_format_align()`, and `rzg2l_cru_enum_fmt_vid_cap()`,
> streamlining the handling of supported formats and improving code
> maintainability.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

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

> ---
>  .../platform/renesas/rzg2l-cru/rzg2l-cru.h    |  6 ++++
>  .../platform/renesas/rzg2l-cru/rzg2l-ip.c     | 22 +++++++++++++
>  .../platform/renesas/rzg2l-cru/rzg2l-video.c  | 33 +++++--------------
>  3 files changed, 37 insertions(+), 24 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
> index 9b1ba015df3b..327516272e53 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
> @@ -66,10 +66,14 @@ struct rzg2l_cru_ip {
>   * struct rzg2l_cru_ip_format - CRU IP format
>   * @code: Media bus code
>   * @datatype: MIPI CSI2 data type
> + * @format: 4CC format identifier (V4L2_PIX_FMT_*)
> + * @bpp: bytes per pixel
>   */
>  struct rzg2l_cru_ip_format {
>  	u32 code;
>  	u32 datatype;
> +	u32 format;
> +	u8 bpp;
>  };
>  
>  /**
> @@ -161,5 +165,7 @@ void rzg2l_cru_ip_subdev_unregister(struct rzg2l_cru_dev *cru);
>  struct v4l2_mbus_framefmt *rzg2l_cru_ip_get_src_fmt(struct rzg2l_cru_dev *cru);
>  
>  const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code);
> +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_format_to_fmt(u32 format);
> +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_index_to_fmt(u32 index);
>  
>  #endif
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> index 8f9683bf31fa..a40b0184b955 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> @@ -14,6 +14,8 @@ static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
>  	{
>  		.code = MEDIA_BUS_FMT_UYVY8_1X16,
>  		.datatype = MIPI_CSI2_DT_YUV422_8B,
> +		.format = V4L2_PIX_FMT_UYVY,
> +		.bpp = 2,
>  	},
>  };
>  
> @@ -28,6 +30,26 @@ const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code)
>  	return NULL;
>  }
>  
> +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_format_to_fmt(u32 format)
> +{
> +	unsigned int i;
> +
> +	for (i = 0; i < ARRAY_SIZE(rzg2l_cru_ip_formats); i++) {
> +		if (rzg2l_cru_ip_formats[i].format == format)
> +			return &rzg2l_cru_ip_formats[i];
> +	}
> +
> +	return NULL;
> +}
> +
> +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_index_to_fmt(u32 index)
> +{
> +	if (index >= ARRAY_SIZE(rzg2l_cru_ip_formats))
> +		return NULL;
> +
> +	return &rzg2l_cru_ip_formats[index];
> +}
> +
>  struct v4l2_mbus_framefmt *rzg2l_cru_ip_get_src_fmt(struct rzg2l_cru_dev *cru)
>  {
>  	struct v4l2_subdev_state *state;
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> index 6a4f0455dc9c..a0fa4542ac43 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> @@ -812,37 +812,19 @@ int rzg2l_cru_dma_register(struct rzg2l_cru_dev *cru)
>   * V4L2 stuff
>   */
>  
> -static const struct v4l2_format_info rzg2l_cru_formats[] = {
> -	{
> -		.format = V4L2_PIX_FMT_UYVY,
> -		.bpp[0] = 2,
> -	},
> -};
> -
> -const struct v4l2_format_info *rzg2l_cru_format_from_pixel(u32 format)
> -{
> -	unsigned int i;
> -
> -	for (i = 0; i < ARRAY_SIZE(rzg2l_cru_formats); i++)
> -		if (rzg2l_cru_formats[i].format == format)
> -			return rzg2l_cru_formats + i;
> -
> -	return NULL;
> -}
> -
>  static u32 rzg2l_cru_format_bytesperline(struct v4l2_pix_format *pix)
>  {
> -	const struct v4l2_format_info *fmt;
> +	const struct rzg2l_cru_ip_format *fmt;
>  
> -	fmt = rzg2l_cru_format_from_pixel(pix->pixelformat);
> +	fmt = rzg2l_cru_ip_format_to_fmt(pix->pixelformat);
>  
> -	return pix->width * fmt->bpp[0];
> +	return pix->width * fmt->bpp;
>  }
>  
>  static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
>  				   struct v4l2_pix_format *pix)
>  {
> -	if (!rzg2l_cru_format_from_pixel(pix->pixelformat))
> +	if (!rzg2l_cru_ip_format_to_fmt(pix->pixelformat))
>  		pix->pixelformat = RZG2L_CRU_DEFAULT_FORMAT;
>  
>  	switch (pix->field) {
> @@ -934,10 +916,13 @@ static int rzg2l_cru_g_fmt_vid_cap(struct file *file, void *priv,
>  static int rzg2l_cru_enum_fmt_vid_cap(struct file *file, void *priv,
>  				      struct v4l2_fmtdesc *f)
>  {
> -	if (f->index >= ARRAY_SIZE(rzg2l_cru_formats))
> +	const struct rzg2l_cru_ip_format *fmt;
> +
> +	fmt = rzg2l_cru_ip_index_to_fmt(f->index);
> +	if (!fmt)
>  		return -EINVAL;
>  
> -	f->pixelformat = rzg2l_cru_formats[f->index].format;
> +	f->pixelformat = fmt->format;
>  
>  	return 0;
>  }

-- 
Regards,

Laurent Pinchart

Re: [PATCH v5 13/22] media: rzg2l-cru: Simplify handling of supported formats

[Lad, Prabhakar]

Hi Laurent,

Thank you for the review.

On Tue, Oct 15, 2024 at 11:23 AM Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> Hi Prabhakar,
>
> Thank you for the patch.
>
> On Fri, Oct 11, 2024 at 06:30:43PM +0100, Prabhakar wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > Refactor the handling of supported formats in the RZ/G2L CRU driver by
> > moving the `rzg2l_cru_ip_format` struct to the common header for reuse
> > across multiple files and adding `pixelformat` and `bpp` members to it.
>
> The structure is already in a common header. You can write
>
> Refactor the handling of supported formats in the RZ/G2L CRU driver by
> adding `pixelformat` and `bpp` members to the `rzg2l_cru_ip_format`
> structure.
>
I will update the commit message as above.

Cheers,
Prabhakar

[PATCH v5 14/22] media: rzg2l-cru: Inline calculating bytesperline

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Remove the `rzg2l_cru_format_bytesperline()` function and inline the
calculation of `bytesperline` directly in `rzg2l_cru_format_align()`.
This simplifies the code by removing an unnecessary function call and
directly multiplying the image width by the `bpp` (bytes per pixel)
from the format structure.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 .../platform/renesas/rzg2l-cru/rzg2l-video.c     | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index a0fa4542ac43..8932fab7c656 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -812,20 +812,16 @@ int rzg2l_cru_dma_register(struct rzg2l_cru_dev *cru)
  * V4L2 stuff
  */
 
-static u32 rzg2l_cru_format_bytesperline(struct v4l2_pix_format *pix)
+static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
+				   struct v4l2_pix_format *pix)
 {
 	const struct rzg2l_cru_ip_format *fmt;
 
 	fmt = rzg2l_cru_ip_format_to_fmt(pix->pixelformat);
-
-	return pix->width * fmt->bpp;
-}
-
-static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
-				   struct v4l2_pix_format *pix)
-{
-	if (!rzg2l_cru_ip_format_to_fmt(pix->pixelformat))
+	if (!fmt) {
 		pix->pixelformat = RZG2L_CRU_DEFAULT_FORMAT;
+		fmt = rzg2l_cru_ip_format_to_fmt(pix->pixelformat);
+	}
 
 	switch (pix->field) {
 	case V4L2_FIELD_TOP:
@@ -844,7 +840,7 @@ static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
 	v4l_bound_align_image(&pix->width, 320, RZG2L_CRU_MAX_INPUT_WIDTH, 1,
 			      &pix->height, 240, RZG2L_CRU_MAX_INPUT_HEIGHT, 2, 0);
 
-	pix->bytesperline = rzg2l_cru_format_bytesperline(pix);
+	pix->bytesperline = pix->width * fmt->bpp;
 	pix->sizeimage = pix->bytesperline * pix->height;
 
 	dev_dbg(cru->dev, "Format %ux%u bpl: %u size: %u\n",
-- 
2.43.0

Re: [PATCH v5 14/22] media: rzg2l-cru: Inline calculating bytesperline

[Laurent Pinchart]

Hi Prabhakar,

Thank you for the patch.

On Fri, Oct 11, 2024 at 06:30:44PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> Remove the `rzg2l_cru_format_bytesperline()` function and inline the
> calculation of `bytesperline` directly in `rzg2l_cru_format_align()`.
> This simplifies the code by removing an unnecessary function call and
> directly multiplying the image width by the `bpp` (bytes per pixel)
> from the format structure.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

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

> ---
>  .../platform/renesas/rzg2l-cru/rzg2l-video.c     | 16 ++++++----------
>  1 file changed, 6 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> index a0fa4542ac43..8932fab7c656 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> @@ -812,20 +812,16 @@ int rzg2l_cru_dma_register(struct rzg2l_cru_dev *cru)
>   * V4L2 stuff
>   */
>  
> -static u32 rzg2l_cru_format_bytesperline(struct v4l2_pix_format *pix)
> +static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
> +				   struct v4l2_pix_format *pix)
>  {
>  	const struct rzg2l_cru_ip_format *fmt;
>  
>  	fmt = rzg2l_cru_ip_format_to_fmt(pix->pixelformat);
> -
> -	return pix->width * fmt->bpp;
> -}
> -
> -static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
> -				   struct v4l2_pix_format *pix)
> -{
> -	if (!rzg2l_cru_ip_format_to_fmt(pix->pixelformat))
> +	if (!fmt) {
>  		pix->pixelformat = RZG2L_CRU_DEFAULT_FORMAT;
> +		fmt = rzg2l_cru_ip_format_to_fmt(pix->pixelformat);
> +	}
>  
>  	switch (pix->field) {
>  	case V4L2_FIELD_TOP:
> @@ -844,7 +840,7 @@ static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
>  	v4l_bound_align_image(&pix->width, 320, RZG2L_CRU_MAX_INPUT_WIDTH, 1,
>  			      &pix->height, 240, RZG2L_CRU_MAX_INPUT_HEIGHT, 2, 0);
>  
> -	pix->bytesperline = rzg2l_cru_format_bytesperline(pix);
> +	pix->bytesperline = pix->width * fmt->bpp;
>  	pix->sizeimage = pix->bytesperline * pix->height;
>  
>  	dev_dbg(cru->dev, "Format %ux%u bpl: %u size: %u\n",

-- 
Regards,

Laurent Pinchart

[PATCH v5 15/22] media: rzg2l-cru: Make use of v4l2_format_info() helpers

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Make use of v4l2_format_info() helpers to determine the input and
output formats.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 .../platform/renesas/rzg2l-cru/rzg2l-video.c  | 22 ++++++-------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index 8932fab7c656..0cc69a7440bf 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -300,21 +300,12 @@ static void rzg2l_cru_initialize_axi(struct rzg2l_cru_dev *cru)
 	rzg2l_cru_write(cru, AMnAXIATTR, amnaxiattr);
 }
 
-static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru, bool *input_is_yuv,
+static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru,
 				 const struct rzg2l_cru_ip_format *ip_fmt,
 				 u8 csi_vc)
 {
 	u32 icnmc = ICnMC_INF(ip_fmt->datatype);
 
-	switch (ip_fmt->code) {
-	case MEDIA_BUS_FMT_UYVY8_1X16:
-		*input_is_yuv = true;
-		break;
-	default:
-		*input_is_yuv = false;
-		break;
-	}
-
 	icnmc |= (rzg2l_cru_read(cru, ICnMC) & ~ICnMC_INF_MASK);
 
 	/* Set virtual channel CSI2 */
@@ -327,19 +318,17 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
 					   struct v4l2_mbus_framefmt *ip_sd_fmt,
 					   u8 csi_vc)
 {
+	const struct v4l2_format_info *src_finfo, *dst_finfo;
 	const struct rzg2l_cru_ip_format *cru_ip_fmt;
-	bool output_is_yuv = false;
-	bool input_is_yuv = false;
 	u32 icndmr;
 
 	cru_ip_fmt = rzg2l_cru_ip_code_to_fmt(ip_sd_fmt->code);
-	rzg2l_cru_csi2_setup(cru, &input_is_yuv, cru_ip_fmt, csi_vc);
+	rzg2l_cru_csi2_setup(cru, cru_ip_fmt, csi_vc);
 
 	/* Output format */
 	switch (cru->format.pixelformat) {
 	case V4L2_PIX_FMT_UYVY:
 		icndmr = ICnDMR_YCMODE_UYVY;
-		output_is_yuv = true;
 		break;
 	default:
 		dev_err(cru->dev, "Invalid pixelformat (0x%x)\n",
@@ -347,8 +336,11 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
 		return -EINVAL;
 	}
 
+	src_finfo = v4l2_format_info(cru_ip_fmt->format);
+	dst_finfo = v4l2_format_info(cru->format.pixelformat);
+
 	/* If input and output use same colorspace, do bypass mode */
-	if (output_is_yuv == input_is_yuv)
+	if (v4l2_is_format_yuv(src_finfo) == v4l2_is_format_yuv(dst_finfo))
 		rzg2l_cru_write(cru, ICnMC,
 				rzg2l_cru_read(cru, ICnMC) | ICnMC_CSCTHR);
 	else
-- 
2.43.0

Re: [PATCH v5 15/22] media: rzg2l-cru: Make use of v4l2_format_info() helpers

[Laurent Pinchart]

Hi Prabhakar,

Thank you for the patch.

On Fri, Oct 11, 2024 at 06:30:45PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> Make use of v4l2_format_info() helpers to determine the input and
> output formats.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> ---
>  .../platform/renesas/rzg2l-cru/rzg2l-video.c  | 22 ++++++-------------
>  1 file changed, 7 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> index 8932fab7c656..0cc69a7440bf 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> @@ -300,21 +300,12 @@ static void rzg2l_cru_initialize_axi(struct rzg2l_cru_dev *cru)
>  	rzg2l_cru_write(cru, AMnAXIATTR, amnaxiattr);
>  }
>  
> -static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru, bool *input_is_yuv,
> +static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru,
>  				 const struct rzg2l_cru_ip_format *ip_fmt,
>  				 u8 csi_vc)
>  {
>  	u32 icnmc = ICnMC_INF(ip_fmt->datatype);
>  
> -	switch (ip_fmt->code) {
> -	case MEDIA_BUS_FMT_UYVY8_1X16:
> -		*input_is_yuv = true;
> -		break;
> -	default:
> -		*input_is_yuv = false;
> -		break;
> -	}
> -
>  	icnmc |= (rzg2l_cru_read(cru, ICnMC) & ~ICnMC_INF_MASK);
>  
>  	/* Set virtual channel CSI2 */
> @@ -327,19 +318,17 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
>  					   struct v4l2_mbus_framefmt *ip_sd_fmt,
>  					   u8 csi_vc)
>  {
> +	const struct v4l2_format_info *src_finfo, *dst_finfo;
>  	const struct rzg2l_cru_ip_format *cru_ip_fmt;
> -	bool output_is_yuv = false;
> -	bool input_is_yuv = false;
>  	u32 icndmr;
>  
>  	cru_ip_fmt = rzg2l_cru_ip_code_to_fmt(ip_sd_fmt->code);
> -	rzg2l_cru_csi2_setup(cru, &input_is_yuv, cru_ip_fmt, csi_vc);
> +	rzg2l_cru_csi2_setup(cru, cru_ip_fmt, csi_vc);
>  
>  	/* Output format */
>  	switch (cru->format.pixelformat) {
>  	case V4L2_PIX_FMT_UYVY:
>  		icndmr = ICnDMR_YCMODE_UYVY;
> -		output_is_yuv = true;
>  		break;
>  	default:
>  		dev_err(cru->dev, "Invalid pixelformat (0x%x)\n",
> @@ -347,8 +336,11 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
>  		return -EINVAL;
>  	}
>  
> +	src_finfo = v4l2_format_info(cru_ip_fmt->format);
> +	dst_finfo = v4l2_format_info(cru->format.pixelformat);

It would be a bit more efficient to add a yuv boolean field to the
rzg2l_cru_ip_format structure, as you already have looked up cru_ip_fmt
for the IP subdev format.

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

> +
>  	/* If input and output use same colorspace, do bypass mode */
> -	if (output_is_yuv == input_is_yuv)
> +	if (v4l2_is_format_yuv(src_finfo) == v4l2_is_format_yuv(dst_finfo))
>  		rzg2l_cru_write(cru, ICnMC,
>  				rzg2l_cru_read(cru, ICnMC) | ICnMC_CSCTHR);
>  	else

-- 
Regards,

Laurent Pinchart

Re: [PATCH v5 15/22] media: rzg2l-cru: Make use of v4l2_format_info() helpers

[Lad, Prabhakar]

Hi Laurent,

Thank you for the review.

On Tue, Oct 15, 2024 at 11:33 AM Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> Hi Prabhakar,
>
> Thank you for the patch.
>
> On Fri, Oct 11, 2024 at 06:30:45PM +0100, Prabhakar wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > Make use of v4l2_format_info() helpers to determine the input and
> > output formats.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > ---
> >  .../platform/renesas/rzg2l-cru/rzg2l-video.c  | 22 ++++++-------------
> >  1 file changed, 7 insertions(+), 15 deletions(-)
> >
> > diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> > index 8932fab7c656..0cc69a7440bf 100644
> > --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> > +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> > @@ -300,21 +300,12 @@ static void rzg2l_cru_initialize_axi(struct rzg2l_cru_dev *cru)
> >       rzg2l_cru_write(cru, AMnAXIATTR, amnaxiattr);
> >  }
> >
> > -static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru, bool *input_is_yuv,
> > +static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru,
> >                                const struct rzg2l_cru_ip_format *ip_fmt,
> >                                u8 csi_vc)
> >  {
> >       u32 icnmc = ICnMC_INF(ip_fmt->datatype);
> >
> > -     switch (ip_fmt->code) {
> > -     case MEDIA_BUS_FMT_UYVY8_1X16:
> > -             *input_is_yuv = true;
> > -             break;
> > -     default:
> > -             *input_is_yuv = false;
> > -             break;
> > -     }
> > -
> >       icnmc |= (rzg2l_cru_read(cru, ICnMC) & ~ICnMC_INF_MASK);
> >
> >       /* Set virtual channel CSI2 */
> > @@ -327,19 +318,17 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
> >                                          struct v4l2_mbus_framefmt *ip_sd_fmt,
> >                                          u8 csi_vc)
> >  {
> > +     const struct v4l2_format_info *src_finfo, *dst_finfo;
> >       const struct rzg2l_cru_ip_format *cru_ip_fmt;
> > -     bool output_is_yuv = false;
> > -     bool input_is_yuv = false;
> >       u32 icndmr;
> >
> >       cru_ip_fmt = rzg2l_cru_ip_code_to_fmt(ip_sd_fmt->code);
> > -     rzg2l_cru_csi2_setup(cru, &input_is_yuv, cru_ip_fmt, csi_vc);
> > +     rzg2l_cru_csi2_setup(cru, cru_ip_fmt, csi_vc);
> >
> >       /* Output format */
> >       switch (cru->format.pixelformat) {
> >       case V4L2_PIX_FMT_UYVY:
> >               icndmr = ICnDMR_YCMODE_UYVY;
> > -             output_is_yuv = true;
> >               break;
> >       default:
> >               dev_err(cru->dev, "Invalid pixelformat (0x%x)\n",
> > @@ -347,8 +336,11 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
> >               return -EINVAL;
> >       }
> >
> > +     src_finfo = v4l2_format_info(cru_ip_fmt->format);
> > +     dst_finfo = v4l2_format_info(cru->format.pixelformat);
>
> It would be a bit more efficient to add a yuv boolean field to the
> rzg2l_cru_ip_format structure, as you already have looked up cru_ip_fmt
> for the IP subdev format.
>
I will consider this change, when adding support for the RZ/V2H SoC,
hope that's OK for you.

Cheers,
Prabhakar

> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
>
> > +
> >       /* If input and output use same colorspace, do bypass mode */
> > -     if (output_is_yuv == input_is_yuv)
> > +     if (v4l2_is_format_yuv(src_finfo) == v4l2_is_format_yuv(dst_finfo))
> >               rzg2l_cru_write(cru, ICnMC,
> >                               rzg2l_cru_read(cru, ICnMC) | ICnMC_CSCTHR);
> >       else
>
> --
> Regards,
>
> Laurent Pinchart

Re: [PATCH v5 15/22] media: rzg2l-cru: Make use of v4l2_format_info() helpers

[Laurent Pinchart]

On Fri, Oct 18, 2024 at 12:45:36PM +0100, Lad, Prabhakar wrote:
> On Tue, Oct 15, 2024 at 11:33 AM Laurent Pinchart wrote:
> > On Fri, Oct 11, 2024 at 06:30:45PM +0100, Prabhakar wrote:
> > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > >
> > > Make use of v4l2_format_info() helpers to determine the input and
> > > output formats.
> > >
> > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > > ---
> > >  .../platform/renesas/rzg2l-cru/rzg2l-video.c  | 22 ++++++-------------
> > >  1 file changed, 7 insertions(+), 15 deletions(-)
> > >
> > > diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> > > index 8932fab7c656..0cc69a7440bf 100644
> > > --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> > > +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> > > @@ -300,21 +300,12 @@ static void rzg2l_cru_initialize_axi(struct rzg2l_cru_dev *cru)
> > >       rzg2l_cru_write(cru, AMnAXIATTR, amnaxiattr);
> > >  }
> > >
> > > -static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru, bool *input_is_yuv,
> > > +static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru,
> > >                                const struct rzg2l_cru_ip_format *ip_fmt,
> > >                                u8 csi_vc)
> > >  {
> > >       u32 icnmc = ICnMC_INF(ip_fmt->datatype);
> > >
> > > -     switch (ip_fmt->code) {
> > > -     case MEDIA_BUS_FMT_UYVY8_1X16:
> > > -             *input_is_yuv = true;
> > > -             break;
> > > -     default:
> > > -             *input_is_yuv = false;
> > > -             break;
> > > -     }
> > > -
> > >       icnmc |= (rzg2l_cru_read(cru, ICnMC) & ~ICnMC_INF_MASK);
> > >
> > >       /* Set virtual channel CSI2 */
> > > @@ -327,19 +318,17 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
> > >                                          struct v4l2_mbus_framefmt *ip_sd_fmt,
> > >                                          u8 csi_vc)
> > >  {
> > > +     const struct v4l2_format_info *src_finfo, *dst_finfo;
> > >       const struct rzg2l_cru_ip_format *cru_ip_fmt;
> > > -     bool output_is_yuv = false;
> > > -     bool input_is_yuv = false;
> > >       u32 icndmr;
> > >
> > >       cru_ip_fmt = rzg2l_cru_ip_code_to_fmt(ip_sd_fmt->code);
> > > -     rzg2l_cru_csi2_setup(cru, &input_is_yuv, cru_ip_fmt, csi_vc);
> > > +     rzg2l_cru_csi2_setup(cru, cru_ip_fmt, csi_vc);
> > >
> > >       /* Output format */
> > >       switch (cru->format.pixelformat) {
> > >       case V4L2_PIX_FMT_UYVY:
> > >               icndmr = ICnDMR_YCMODE_UYVY;
> > > -             output_is_yuv = true;
> > >               break;
> > >       default:
> > >               dev_err(cru->dev, "Invalid pixelformat (0x%x)\n",
> > > @@ -347,8 +336,11 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
> > >               return -EINVAL;
> > >       }
> > >
> > > +     src_finfo = v4l2_format_info(cru_ip_fmt->format);
> > > +     dst_finfo = v4l2_format_info(cru->format.pixelformat);
> >
> > It would be a bit more efficient to add a yuv boolean field to the
> > rzg2l_cru_ip_format structure, as you already have looked up cru_ip_fmt
> > for the IP subdev format.
>
> I will consider this change, when adding support for the RZ/V2H SoC,
> hope that's OK for you.

It's not a blocker, it can be done on top indeed. If you end up
submitting a v6 you could add a patch on top already, but otherwise
later is fine too.

> > Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> >
> > > +
> > >       /* If input and output use same colorspace, do bypass mode */
> > > -     if (output_is_yuv == input_is_yuv)
> > > +     if (v4l2_is_format_yuv(src_finfo) == v4l2_is_format_yuv(dst_finfo))
> > >               rzg2l_cru_write(cru, ICnMC,
> > >                               rzg2l_cru_read(cru, ICnMC) | ICnMC_CSCTHR);
> > >       else

-- 
Regards,

Laurent Pinchart

Re: [PATCH v5 15/22] media: rzg2l-cru: Make use of v4l2_format_info() helpers

[Lad, Prabhakar]

Hi Laurent,

On Fri, Oct 18, 2024 at 1:26 PM Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> On Fri, Oct 18, 2024 at 12:45:36PM +0100, Lad, Prabhakar wrote:
> > On Tue, Oct 15, 2024 at 11:33 AM Laurent Pinchart wrote:
> > > On Fri, Oct 11, 2024 at 06:30:45PM +0100, Prabhakar wrote:
> > > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > > >
> > > > Make use of v4l2_format_info() helpers to determine the input and
> > > > output formats.
> > > >
> > > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > > > ---
> > > >  .../platform/renesas/rzg2l-cru/rzg2l-video.c  | 22 ++++++-------------
> > > >  1 file changed, 7 insertions(+), 15 deletions(-)
> > > >
> > > > diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> > > > index 8932fab7c656..0cc69a7440bf 100644
> > > > --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> > > > +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> > > > @@ -300,21 +300,12 @@ static void rzg2l_cru_initialize_axi(struct rzg2l_cru_dev *cru)
> > > >       rzg2l_cru_write(cru, AMnAXIATTR, amnaxiattr);
> > > >  }
> > > >
> > > > -static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru, bool *input_is_yuv,
> > > > +static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru,
> > > >                                const struct rzg2l_cru_ip_format *ip_fmt,
> > > >                                u8 csi_vc)
> > > >  {
> > > >       u32 icnmc = ICnMC_INF(ip_fmt->datatype);
> > > >
> > > > -     switch (ip_fmt->code) {
> > > > -     case MEDIA_BUS_FMT_UYVY8_1X16:
> > > > -             *input_is_yuv = true;
> > > > -             break;
> > > > -     default:
> > > > -             *input_is_yuv = false;
> > > > -             break;
> > > > -     }
> > > > -
> > > >       icnmc |= (rzg2l_cru_read(cru, ICnMC) & ~ICnMC_INF_MASK);
> > > >
> > > >       /* Set virtual channel CSI2 */
> > > > @@ -327,19 +318,17 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
> > > >                                          struct v4l2_mbus_framefmt *ip_sd_fmt,
> > > >                                          u8 csi_vc)
> > > >  {
> > > > +     const struct v4l2_format_info *src_finfo, *dst_finfo;
> > > >       const struct rzg2l_cru_ip_format *cru_ip_fmt;
> > > > -     bool output_is_yuv = false;
> > > > -     bool input_is_yuv = false;
> > > >       u32 icndmr;
> > > >
> > > >       cru_ip_fmt = rzg2l_cru_ip_code_to_fmt(ip_sd_fmt->code);
> > > > -     rzg2l_cru_csi2_setup(cru, &input_is_yuv, cru_ip_fmt, csi_vc);
> > > > +     rzg2l_cru_csi2_setup(cru, cru_ip_fmt, csi_vc);
> > > >
> > > >       /* Output format */
> > > >       switch (cru->format.pixelformat) {
> > > >       case V4L2_PIX_FMT_UYVY:
> > > >               icndmr = ICnDMR_YCMODE_UYVY;
> > > > -             output_is_yuv = true;
> > > >               break;
> > > >       default:
> > > >               dev_err(cru->dev, "Invalid pixelformat (0x%x)\n",
> > > > @@ -347,8 +336,11 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
> > > >               return -EINVAL;
> > > >       }
> > > >
> > > > +     src_finfo = v4l2_format_info(cru_ip_fmt->format);
> > > > +     dst_finfo = v4l2_format_info(cru->format.pixelformat);
> > >
> > > It would be a bit more efficient to add a yuv boolean field to the
> > > rzg2l_cru_ip_format structure, as you already have looked up cru_ip_fmt
> > > for the IP subdev format.
> >
> > I will consider this change, when adding support for the RZ/V2H SoC,
> > hope that's OK for you.
>
> It's not a blocker, it can be done on top indeed. If you end up
> submitting a v6 you could add a patch on top already, but otherwise
> later is fine too.
>
I was intending to send a v6 anyway with the updated commit messages,
so I will add a new patch on top.

Cheers,
Prabhakar

[PATCH v5 16/22] media: rzg2l-cru: Use `rzg2l_cru_ip_formats` array in enum_frame_size

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Use the `rzg2l_cru_ip_formats` array in `rzg2l_cru_ip_enum_frame_size()`
to validate the format code.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
index a40b0184b955..07859c89be77 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
@@ -165,7 +165,7 @@ static int rzg2l_cru_ip_enum_frame_size(struct v4l2_subdev *sd,
 	if (fse->index != 0)
 		return -EINVAL;
 
-	if (fse->code != MEDIA_BUS_FMT_UYVY8_1X16)
+	if (!rzg2l_cru_ip_code_to_fmt(fse->code))
 		return -EINVAL;
 
 	fse->min_width = RZG2L_CRU_MIN_INPUT_WIDTH;
-- 
2.43.0

[PATCH v5 17/22] media: rzg2l-cru: csi2: Remove unused field from rzg2l_csi2_format

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Remove the unused `datatype` field from the `rzg2l_csi2_format` struct and
update the `rzg2l_csi2_formats[]` array to reflect the updated structure.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
index 3fd0be6a3b65..7b76d495cfe4 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
@@ -183,12 +183,11 @@ static const struct rzg2l_csi2_timings rzg2l_csi2_global_timings[] = {
 
 struct rzg2l_csi2_format {
 	u32 code;
-	unsigned int datatype;
 	unsigned int bpp;
 };
 
 static const struct rzg2l_csi2_format rzg2l_csi2_formats[] = {
-	{ .code = MEDIA_BUS_FMT_UYVY8_1X16,	.datatype = 0x1e, .bpp = 16 },
+	{ .code = MEDIA_BUS_FMT_UYVY8_1X16, .bpp = 16 },
 };
 
 static inline struct rzg2l_csi2 *sd_to_csi2(struct v4l2_subdev *sd)
-- 
2.43.0

[PATCH v5 18/22] media: rzg2l-cru: video: Implement .link_validate() callback

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Implement the `.link_validate()` callback for the video node and move the
format checking into this function. This change allows the removal of
`rzg2l_cru_mc_validate_format()`.

Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 .../platform/renesas/rzg2l-cru/rzg2l-video.c  | 82 +++++++++----------
 1 file changed, 38 insertions(+), 44 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index 0cc69a7440bf..df6114cbe5c7 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -189,46 +189,6 @@ static void rzg2l_cru_buffer_queue(struct vb2_buffer *vb)
 	spin_unlock_irqrestore(&cru->qlock, flags);
 }
 
-static int rzg2l_cru_mc_validate_format(struct rzg2l_cru_dev *cru,
-					struct v4l2_subdev *sd,
-					struct media_pad *pad)
-{
-	struct v4l2_subdev_format fmt = {
-		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
-	};
-
-	fmt.pad = pad->index;
-	if (v4l2_subdev_call_state_active(sd, pad, get_fmt, &fmt))
-		return -EPIPE;
-
-	switch (fmt.format.code) {
-	case MEDIA_BUS_FMT_UYVY8_1X16:
-		break;
-	default:
-		return -EPIPE;
-	}
-
-	switch (fmt.format.field) {
-	case V4L2_FIELD_TOP:
-	case V4L2_FIELD_BOTTOM:
-	case V4L2_FIELD_NONE:
-	case V4L2_FIELD_INTERLACED_TB:
-	case V4L2_FIELD_INTERLACED_BT:
-	case V4L2_FIELD_INTERLACED:
-	case V4L2_FIELD_SEQ_TB:
-	case V4L2_FIELD_SEQ_BT:
-		break;
-	default:
-		return -EPIPE;
-	}
-
-	if (fmt.format.width != cru->format.width ||
-	    fmt.format.height != cru->format.height)
-		return -EPIPE;
-
-	return 0;
-}
-
 static void rzg2l_cru_set_slot_addr(struct rzg2l_cru_dev *cru,
 				    int slot, dma_addr_t addr)
 {
@@ -532,10 +492,6 @@ static int rzg2l_cru_set_stream(struct rzg2l_cru_dev *cru, int on)
 		return stream_off_ret;
 	}
 
-	ret = rzg2l_cru_mc_validate_format(cru, sd, pad);
-	if (ret)
-		return ret;
-
 	pipe = media_entity_pipeline(&sd->entity) ? : &cru->vdev.pipe;
 	ret = video_device_pipeline_start(&cru->vdev, pipe);
 	if (ret)
@@ -986,6 +942,43 @@ static const struct v4l2_file_operations rzg2l_cru_fops = {
 	.read		= vb2_fop_read,
 };
 
+/* -----------------------------------------------------------------------------
+ * Media entity operations
+ */
+
+static int rzg2l_cru_video_link_validate(struct media_link *link)
+{
+	struct v4l2_subdev_format fmt = {
+		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
+	};
+	const struct rzg2l_cru_ip_format *video_fmt;
+	struct v4l2_subdev *subdev;
+	struct rzg2l_cru_dev *cru;
+	int ret;
+
+	subdev = media_entity_to_v4l2_subdev(link->source->entity);
+	fmt.pad = link->source->index;
+	ret = v4l2_subdev_call(subdev, pad, get_fmt, NULL, &fmt);
+	if (ret < 0)
+		return ret == -ENOIOCTLCMD ? -EINVAL : ret;
+
+	cru = container_of(media_entity_to_video_device(link->sink->entity),
+			   struct rzg2l_cru_dev, vdev);
+	video_fmt = rzg2l_cru_ip_format_to_fmt(cru->format.pixelformat);
+
+	if (fmt.format.width != cru->format.width ||
+	    fmt.format.height != cru->format.height ||
+	    fmt.format.field != cru->format.field ||
+	    video_fmt->code != fmt.format.code)
+		return -EPIPE;
+
+	return 0;
+}
+
+static const struct media_entity_operations rzg2l_cru_video_media_ops = {
+	.link_validate = rzg2l_cru_video_link_validate,
+};
+
 static void rzg2l_cru_v4l2_init(struct rzg2l_cru_dev *cru)
 {
 	struct video_device *vdev = &cru->vdev;
@@ -997,6 +990,7 @@ static void rzg2l_cru_v4l2_init(struct rzg2l_cru_dev *cru)
 	vdev->lock = &cru->lock;
 	vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
 	vdev->device_caps |= V4L2_CAP_IO_MC;
+	vdev->entity.ops = &rzg2l_cru_video_media_ops;
 	vdev->fops = &rzg2l_cru_fops;
 	vdev->ioctl_ops = &rzg2l_cru_ioctl_ops;
 
-- 
2.43.0

Re: [PATCH v5 18/22] media: rzg2l-cru: video: Implement .link_validate() callback

[Laurent Pinchart]

Hi Prabhakar,

Thank you for the patch.

On Fri, Oct 11, 2024 at 06:30:48PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> Implement the `.link_validate()` callback for the video node and move the
> format checking into this function. This change allows the removal of
> `rzg2l_cru_mc_validate_format()`.

I would add here that the fmt.format.code and fmt.format.field checks
can be dropped as the subdev .set_fmt() handler ensures that those
fields always hold valid values.

> 
> Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

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

> ---
>  .../platform/renesas/rzg2l-cru/rzg2l-video.c  | 82 +++++++++----------
>  1 file changed, 38 insertions(+), 44 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> index 0cc69a7440bf..df6114cbe5c7 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> @@ -189,46 +189,6 @@ static void rzg2l_cru_buffer_queue(struct vb2_buffer *vb)
>  	spin_unlock_irqrestore(&cru->qlock, flags);
>  }
>  
> -static int rzg2l_cru_mc_validate_format(struct rzg2l_cru_dev *cru,
> -					struct v4l2_subdev *sd,
> -					struct media_pad *pad)
> -{
> -	struct v4l2_subdev_format fmt = {
> -		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
> -	};
> -
> -	fmt.pad = pad->index;
> -	if (v4l2_subdev_call_state_active(sd, pad, get_fmt, &fmt))
> -		return -EPIPE;
> -
> -	switch (fmt.format.code) {
> -	case MEDIA_BUS_FMT_UYVY8_1X16:
> -		break;
> -	default:
> -		return -EPIPE;
> -	}
> -
> -	switch (fmt.format.field) {
> -	case V4L2_FIELD_TOP:
> -	case V4L2_FIELD_BOTTOM:
> -	case V4L2_FIELD_NONE:
> -	case V4L2_FIELD_INTERLACED_TB:
> -	case V4L2_FIELD_INTERLACED_BT:
> -	case V4L2_FIELD_INTERLACED:
> -	case V4L2_FIELD_SEQ_TB:
> -	case V4L2_FIELD_SEQ_BT:
> -		break;
> -	default:
> -		return -EPIPE;
> -	}
> -
> -	if (fmt.format.width != cru->format.width ||
> -	    fmt.format.height != cru->format.height)
> -		return -EPIPE;
> -
> -	return 0;
> -}
> -
>  static void rzg2l_cru_set_slot_addr(struct rzg2l_cru_dev *cru,
>  				    int slot, dma_addr_t addr)
>  {
> @@ -532,10 +492,6 @@ static int rzg2l_cru_set_stream(struct rzg2l_cru_dev *cru, int on)
>  		return stream_off_ret;
>  	}
>  
> -	ret = rzg2l_cru_mc_validate_format(cru, sd, pad);
> -	if (ret)
> -		return ret;
> -
>  	pipe = media_entity_pipeline(&sd->entity) ? : &cru->vdev.pipe;
>  	ret = video_device_pipeline_start(&cru->vdev, pipe);
>  	if (ret)
> @@ -986,6 +942,43 @@ static const struct v4l2_file_operations rzg2l_cru_fops = {
>  	.read		= vb2_fop_read,
>  };
>  
> +/* -----------------------------------------------------------------------------
> + * Media entity operations
> + */
> +
> +static int rzg2l_cru_video_link_validate(struct media_link *link)
> +{
> +	struct v4l2_subdev_format fmt = {
> +		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
> +	};
> +	const struct rzg2l_cru_ip_format *video_fmt;
> +	struct v4l2_subdev *subdev;
> +	struct rzg2l_cru_dev *cru;
> +	int ret;
> +
> +	subdev = media_entity_to_v4l2_subdev(link->source->entity);
> +	fmt.pad = link->source->index;
> +	ret = v4l2_subdev_call(subdev, pad, get_fmt, NULL, &fmt);
> +	if (ret < 0)
> +		return ret == -ENOIOCTLCMD ? -EINVAL : ret;
> +
> +	cru = container_of(media_entity_to_video_device(link->sink->entity),
> +			   struct rzg2l_cru_dev, vdev);
> +	video_fmt = rzg2l_cru_ip_format_to_fmt(cru->format.pixelformat);
> +
> +	if (fmt.format.width != cru->format.width ||
> +	    fmt.format.height != cru->format.height ||
> +	    fmt.format.field != cru->format.field ||
> +	    video_fmt->code != fmt.format.code)
> +		return -EPIPE;
> +
> +	return 0;
> +}
> +
> +static const struct media_entity_operations rzg2l_cru_video_media_ops = {
> +	.link_validate = rzg2l_cru_video_link_validate,
> +};
> +
>  static void rzg2l_cru_v4l2_init(struct rzg2l_cru_dev *cru)
>  {
>  	struct video_device *vdev = &cru->vdev;
> @@ -997,6 +990,7 @@ static void rzg2l_cru_v4l2_init(struct rzg2l_cru_dev *cru)
>  	vdev->lock = &cru->lock;
>  	vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
>  	vdev->device_caps |= V4L2_CAP_IO_MC;
> +	vdev->entity.ops = &rzg2l_cru_video_media_ops;
>  	vdev->fops = &rzg2l_cru_fops;
>  	vdev->ioctl_ops = &rzg2l_cru_ioctl_ops;
>  

-- 
Regards,

Laurent Pinchart

[PATCH v5 19/22] media: rzg2l-cru: csi2: Use rzg2l_csi2_formats array in enum_frame_size

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Make use of `rzg2l_csi2_formats` array in rzg2l_csi2_enum_frame_size() to
validate if the `fse->code` is supported.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
index 7b76d495cfe4..e21142d3b67d 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
@@ -573,6 +573,9 @@ static int rzg2l_csi2_enum_frame_size(struct v4l2_subdev *sd,
 	if (fse->index != 0)
 		return -EINVAL;
 
+	if (!rzg2l_csi2_code_to_fmt(fse->code))
+		return -EINVAL;
+
 	fse->min_width = RZG2L_CSI2_MIN_WIDTH;
 	fse->min_height = RZG2L_CSI2_MIN_HEIGHT;
 	fse->max_width = RZG2L_CSI2_MAX_WIDTH;
-- 
2.43.0

[PATCH v5 20/22] media: rzg2l-cru: Refactor ICnDMR register configuration

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Refactor the ICnDMR register configuration in
`rzg2l_cru_initialize_image_conv()` by adding a new member `icndmr` in the
`rzg2l_cru_ip_format` structure.

Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h |  4 ++++
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c  |  1 +
 .../media/platform/renesas/rzg2l-cru/rzg2l-video.c   | 12 ++++--------
 3 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
index 327516272e53..c40754732576 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
@@ -31,6 +31,8 @@
 #define RZG2L_CRU_MIN_INPUT_HEIGHT	240
 #define RZG2L_CRU_MAX_INPUT_HEIGHT	4095
 
+#define ICnDMR_YCMODE_UYVY		(1 << 4)
+
 enum rzg2l_csi2_pads {
 	RZG2L_CRU_IP_SINK = 0,
 	RZG2L_CRU_IP_SOURCE,
@@ -67,12 +69,14 @@ struct rzg2l_cru_ip {
  * @code: Media bus code
  * @datatype: MIPI CSI2 data type
  * @format: 4CC format identifier (V4L2_PIX_FMT_*)
+ * @icndmr: ICnDMR register value
  * @bpp: bytes per pixel
  */
 struct rzg2l_cru_ip_format {
 	u32 code;
 	u32 datatype;
 	u32 format;
+	u32 icndmr;
 	u8 bpp;
 };
 
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
index 07859c89be77..ad470de440ad 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
@@ -16,6 +16,7 @@ static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
 		.datatype = MIPI_CSI2_DT_YUV422_8B,
 		.format = V4L2_PIX_FMT_UYVY,
 		.bpp = 2,
+		.icndmr = ICnDMR_YCMODE_UYVY,
 	},
 };
 
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index df6114cbe5c7..a686a5cd4f59 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -88,7 +88,6 @@
 
 /* CRU Data Output Mode Register */
 #define ICnDMR				0x26c
-#define ICnDMR_YCMODE_UYVY		(1 << 4)
 
 #define RZG2L_TIMEOUT_MS		100
 #define RZG2L_RETRIES			10
@@ -279,18 +278,15 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
 					   u8 csi_vc)
 {
 	const struct v4l2_format_info *src_finfo, *dst_finfo;
+	const struct rzg2l_cru_ip_format *cru_video_fmt;
 	const struct rzg2l_cru_ip_format *cru_ip_fmt;
-	u32 icndmr;
 
 	cru_ip_fmt = rzg2l_cru_ip_code_to_fmt(ip_sd_fmt->code);
 	rzg2l_cru_csi2_setup(cru, cru_ip_fmt, csi_vc);
 
 	/* Output format */
-	switch (cru->format.pixelformat) {
-	case V4L2_PIX_FMT_UYVY:
-		icndmr = ICnDMR_YCMODE_UYVY;
-		break;
-	default:
+	cru_video_fmt = rzg2l_cru_ip_format_to_fmt(cru->format.pixelformat);
+	if (!cru_video_fmt) {
 		dev_err(cru->dev, "Invalid pixelformat (0x%x)\n",
 			cru->format.pixelformat);
 		return -EINVAL;
@@ -308,7 +304,7 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
 				rzg2l_cru_read(cru, ICnMC) & (~ICnMC_CSCTHR));
 
 	/* Set output data format */
-	rzg2l_cru_write(cru, ICnDMR, icndmr);
+	rzg2l_cru_write(cru, ICnDMR, cru_video_fmt->icndmr);
 
 	return 0;
 }
-- 
2.43.0

[PATCH v5 21/22] media: rzg2l-cru: Add support to capture 8bit raw sRGB

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Add support to capture 8bit Bayer formats.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 .../platform/renesas/rzg2l-cru/rzg2l-csi2.c   |  4 +++
 .../platform/renesas/rzg2l-cru/rzg2l-ip.c     | 28 +++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
index e21142d3b67d..84230926875a 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
@@ -188,6 +188,10 @@ struct rzg2l_csi2_format {
 
 static const struct rzg2l_csi2_format rzg2l_csi2_formats[] = {
 	{ .code = MEDIA_BUS_FMT_UYVY8_1X16, .bpp = 16 },
+	{ .code = MEDIA_BUS_FMT_SBGGR8_1X8, .bpp = 8, },
+	{ .code = MEDIA_BUS_FMT_SGBRG8_1X8, .bpp = 8, },
+	{ .code = MEDIA_BUS_FMT_SGRBG8_1X8, .bpp = 8, },
+	{ .code = MEDIA_BUS_FMT_SRGGB8_1X8, .bpp = 8, },
 };
 
 static inline struct rzg2l_csi2 *sd_to_csi2(struct v4l2_subdev *sd)
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
index ad470de440ad..982c996cc777 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
@@ -18,6 +18,34 @@ static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
 		.bpp = 2,
 		.icndmr = ICnDMR_YCMODE_UYVY,
 	},
+	{
+		.code = MEDIA_BUS_FMT_SBGGR8_1X8,
+		.format = V4L2_PIX_FMT_SBGGR8,
+		.datatype = MIPI_CSI2_DT_RAW8,
+		.bpp = 1,
+		.icndmr = 0,
+	},
+	{
+		.code = MEDIA_BUS_FMT_SGBRG8_1X8,
+		.format = V4L2_PIX_FMT_SGBRG8,
+		.datatype = MIPI_CSI2_DT_RAW8,
+		.bpp = 1,
+		.icndmr = 0,
+	},
+	{
+		.code = MEDIA_BUS_FMT_SGRBG8_1X8,
+		.format = V4L2_PIX_FMT_SGRBG8,
+		.datatype = MIPI_CSI2_DT_RAW8,
+		.bpp = 1,
+		.icndmr = 0,
+	},
+	{
+		.code = MEDIA_BUS_FMT_SRGGB8_1X8,
+		.format = V4L2_PIX_FMT_SRGGB8,
+		.datatype = MIPI_CSI2_DT_RAW8,
+		.bpp = 1,
+		.icndmr = 0,
+	},
 };
 
 const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code)
-- 
2.43.0

[PATCH v5 22/22] media: rzg2l-cru: Move register definitions to a separate file

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Move the RZ/G2L CRU register definitions from `rzg2l-video.c` to a
dedicated header file, `rzg2l-cru-regs.h`. Separating these definitions
into their own file improves the readability of the code.

Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 .../renesas/rzg2l-cru/rzg2l-cru-regs.h        | 80 +++++++++++++++++++
 .../platform/renesas/rzg2l-cru/rzg2l-cru.h    |  2 -
 .../platform/renesas/rzg2l-cru/rzg2l-ip.c     |  1 +
 .../platform/renesas/rzg2l-cru/rzg2l-video.c  | 69 +---------------
 4 files changed, 82 insertions(+), 70 deletions(-)
 create mode 100644 drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru-regs.h

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru-regs.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru-regs.h
new file mode 100644
index 000000000000..1c9f22118a5d
--- /dev/null
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru-regs.h
@@ -0,0 +1,80 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * rzg2l-cru-regs.h--RZ/G2L (and alike SoCs) CRU Registers Definitions
+ *
+ * Copyright (C) 2024 Renesas Electronics Corp.
+ */
+
+#ifndef __RZG2L_CRU_REGS_H__
+#define __RZG2L_CRU_REGS_H__
+
+/* HW CRU Registers Definition */
+
+/* CRU Control Register */
+#define CRUnCTRL			0x0
+#define CRUnCTRL_VINSEL(x)		((x) << 0)
+
+/* CRU Interrupt Enable Register */
+#define CRUnIE				0x4
+#define CRUnIE_EFE			BIT(17)
+
+/* CRU Interrupt Status Register */
+#define CRUnINTS			0x8
+#define CRUnINTS_SFS			BIT(16)
+
+/* CRU Reset Register */
+#define CRUnRST				0xc
+#define CRUnRST_VRESETN			BIT(0)
+
+/* Memory Bank Base Address (Lower) Register for CRU Image Data */
+#define AMnMBxADDRL(x)			(0x100 + ((x) * 8))
+
+/* Memory Bank Base Address (Higher) Register for CRU Image Data */
+#define AMnMBxADDRH(x)			(0x104 + ((x) * 8))
+
+/* Memory Bank Enable Register for CRU Image Data */
+#define AMnMBVALID			0x148
+#define AMnMBVALID_MBVALID(x)		GENMASK(x, 0)
+
+/* Memory Bank Status Register for CRU Image Data */
+#define AMnMBS				0x14c
+#define AMnMBS_MBSTS			0x7
+
+/* AXI Master Transfer Setting Register for CRU Image Data */
+#define AMnAXIATTR			0x158
+#define AMnAXIATTR_AXILEN_MASK		GENMASK(3, 0)
+#define AMnAXIATTR_AXILEN		(0xf)
+
+/* AXI Master FIFO Pointer Register for CRU Image Data */
+#define AMnFIFOPNTR			0x168
+#define AMnFIFOPNTR_FIFOWPNTR		GENMASK(7, 0)
+#define AMnFIFOPNTR_FIFORPNTR_Y		GENMASK(23, 16)
+
+/* AXI Master Transfer Stop Register for CRU Image Data */
+#define AMnAXISTP			0x174
+#define AMnAXISTP_AXI_STOP		BIT(0)
+
+/* AXI Master Transfer Stop Status Register for CRU Image Data */
+#define AMnAXISTPACK			0x178
+#define AMnAXISTPACK_AXI_STOP_ACK	BIT(0)
+
+/* CRU Image Processing Enable Register */
+#define ICnEN				0x200
+#define ICnEN_ICEN			BIT(0)
+
+/* CRU Image Processing Main Control Register */
+#define ICnMC				0x208
+#define ICnMC_CSCTHR			BIT(5)
+#define ICnMC_INF(x)			((x) << 16)
+#define ICnMC_VCSEL(x)			((x) << 22)
+#define ICnMC_INF_MASK			GENMASK(21, 16)
+
+/* CRU Module Status Register */
+#define ICnMS				0x254
+#define ICnMS_IA			BIT(2)
+
+/* CRU Data Output Mode Register */
+#define ICnDMR				0x26c
+#define ICnDMR_YCMODE_UYVY		(1 << 4)
+
+#endif /* __RZG2L_CRU_REGS_H__ */
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
index c40754732576..a83e78d9b0be 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
@@ -31,8 +31,6 @@
 #define RZG2L_CRU_MIN_INPUT_HEIGHT	240
 #define RZG2L_CRU_MAX_INPUT_HEIGHT	4095
 
-#define ICnDMR_YCMODE_UYVY		(1 << 4)
-
 enum rzg2l_csi2_pads {
 	RZG2L_CRU_IP_SINK = 0,
 	RZG2L_CRU_IP_SOURCE,
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
index 982c996cc777..d935d981f9d3 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
@@ -9,6 +9,7 @@
 #include <media/mipi-csi2.h>
 
 #include "rzg2l-cru.h"
+#include "rzg2l-cru-regs.h"
 
 static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
 	{
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index a686a5cd4f59..a4dc3689599c 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -20,74 +20,7 @@
 #include <media/videobuf2-dma-contig.h>
 
 #include "rzg2l-cru.h"
-
-/* HW CRU Registers Definition */
-
-/* CRU Control Register */
-#define CRUnCTRL			0x0
-#define CRUnCTRL_VINSEL(x)		((x) << 0)
-
-/* CRU Interrupt Enable Register */
-#define CRUnIE				0x4
-#define CRUnIE_EFE			BIT(17)
-
-/* CRU Interrupt Status Register */
-#define CRUnINTS			0x8
-#define CRUnINTS_SFS			BIT(16)
-
-/* CRU Reset Register */
-#define CRUnRST				0xc
-#define CRUnRST_VRESETN			BIT(0)
-
-/* Memory Bank Base Address (Lower) Register for CRU Image Data */
-#define AMnMBxADDRL(x)			(0x100 + ((x) * 8))
-
-/* Memory Bank Base Address (Higher) Register for CRU Image Data */
-#define AMnMBxADDRH(x)			(0x104 + ((x) * 8))
-
-/* Memory Bank Enable Register for CRU Image Data */
-#define AMnMBVALID			0x148
-#define AMnMBVALID_MBVALID(x)		GENMASK(x, 0)
-
-/* Memory Bank Status Register for CRU Image Data */
-#define AMnMBS				0x14c
-#define AMnMBS_MBSTS			0x7
-
-/* AXI Master Transfer Setting Register for CRU Image Data */
-#define AMnAXIATTR			0x158
-#define AMnAXIATTR_AXILEN_MASK		GENMASK(3, 0)
-#define AMnAXIATTR_AXILEN		(0xf)
-
-/* AXI Master FIFO Pointer Register for CRU Image Data */
-#define AMnFIFOPNTR			0x168
-#define AMnFIFOPNTR_FIFOWPNTR		GENMASK(7, 0)
-#define AMnFIFOPNTR_FIFORPNTR_Y		GENMASK(23, 16)
-
-/* AXI Master Transfer Stop Register for CRU Image Data */
-#define AMnAXISTP			0x174
-#define AMnAXISTP_AXI_STOP		BIT(0)
-
-/* AXI Master Transfer Stop Status Register for CRU Image Data */
-#define AMnAXISTPACK			0x178
-#define AMnAXISTPACK_AXI_STOP_ACK	BIT(0)
-
-/* CRU Image Processing Enable Register */
-#define ICnEN				0x200
-#define ICnEN_ICEN			BIT(0)
-
-/* CRU Image Processing Main Control Register */
-#define ICnMC				0x208
-#define ICnMC_CSCTHR			BIT(5)
-#define ICnMC_INF(x)			((x) << 16)
-#define ICnMC_VCSEL(x)			((x) << 22)
-#define ICnMC_INF_MASK			GENMASK(21, 16)
-
-/* CRU Module Status Register */
-#define ICnMS				0x254
-#define ICnMS_IA			BIT(2)
-
-/* CRU Data Output Mode Register */
-#define ICnDMR				0x26c
+#include "rzg2l-cru-regs.h"
 
 #define RZG2L_TIMEOUT_MS		100
 #define RZG2L_RETRIES			10
-- 
2.43.0