linux-kernel - [PATCH v4 15/17] media: rzg2l-cru: Refactor ICnDMR register configuration

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Message-ID: <20241007184839.190519-16-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Mon,  7 Oct 2024 19:48:37 +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 v4 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>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.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 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 fc9fbac72762..383f4b30e2ee 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 385b4242db2f..a96590178cb9 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
@@ -278,8 +277,8 @@ 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, csi_vc, cru_ip_fmt->datatype);
@@ -288,11 +287,8 @@ 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;
@@ -307,7 +303,7 @@ 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