linux-kernel - [PATCH v6 11/23] media: rzg2l-cru: Simplify configuring input format for image processing

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Message-ID: <20241018133446.223516-12-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Fri, 18 Oct 2024 14:34:34 +0100
From: Prabhakar <prabhakar.csengg@...il.com>
To: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Hans Verkuil <hverkuil-cisco@...all.nl>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>
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 v6 11/23] media: rzg2l-cru: Simplify configuring input format for image processing

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...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@...renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.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