linux-kernel - [PATCH v3 15/17] media: rzg2l-cru: Refactor ICnDMR register configuration

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Message-ID: <20241001140919.206139-16-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Tue,  1 Oct 2024 15:09:17 +0100
From: Prabhakar <prabhakar.csengg@...il.com>
To: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Hans Verkuil <hverkuil-cisco@...all.nl>
Cc: linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	Prabhakar <prabhakar.csengg@...il.com>,
	Biju Das <biju.das.jz@...renesas.com>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH v3 15/17] media: rzg2l-cru: Refactor ICnDMR register configuration

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...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@...asonboard.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
v2->v3
- Updated subject line and commit message
- Re-used rzg2l_cru_ip_format_to_fmt() to fetch icndmr details
- Collected RB tag

v1->v2
- New patch
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h   |  4 ++++
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c    |  1 +
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c | 10 ++++------
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
index 39296a59b3da..51206373b7fe 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,
@@ -68,12 +70,14 @@ struct rzg2l_cru_ip {
  * @format: 4CC format identifier (V4L2_PIX_FMT_*)
  * @datatype: MIPI CSI2 data type
  * @bpp: bytes per pixel
+ * @icndmr: ICnDMR register value
  */
 struct rzg2l_cru_ip_format {
 	u32 code;
 	u32 format;
 	u32 datatype;
 	u8 bpp;
+	u32 icndmr;
 };
 
 /**
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
index 6ce077ab42e2..f14ac949cc64 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
@@ -17,6 +17,7 @@ static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
 		.format = V4L2_PIX_FMT_UYVY,
 		.datatype = MIPI_CSI2_DT_YUV422_8B,
 		.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 c6c82b9b130a..c3d10b001b7c 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
@@ -278,6 +277,7 @@ 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;
 
@@ -288,15 +288,13 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
 	dst_finfo = v4l2_format_info(cru->format.pixelformat);
 
 	/* 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;
 	}
+	icndmr = cru_video_fmt->icndmr;
 
 	/* If input and output use same colorspace, do bypass mode */
 	if (v4l2_is_format_yuv(src_finfo) && v4l2_is_format_yuv(dst_finfo))
-- 
2.43.0