[PATCH v2 12/18] media: rzg2l-cru: Pass resolution limits via OF data

[Tommaso Merciai <tommaso.merciai.xr@xxxxxxxxxxxxxx>]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

Pass `max_width` and `max_height` as part of the OF data to facilitate the
addition of support for RZ/G3E and RZ/V2H(P) SoCs. These SoCs have a
maximum resolution of 4096x4096 as compared to 2800x4095 on RZ/G2L SoC.
This change prepares the driver for easier integration of these SoCs by
defining the resolution limits in the `rzg2l_cru_info` structure.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@xxxxxxxxxxxxxx>
---
 .../media/platform/renesas/rzg2l-cru/rzg2l-core.c   |  2 ++
 .../media/platform/renesas/rzg2l-cru/rzg2l-cru.h    |  4 ++--
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c | 13 +++++++++----
 .../media/platform/renesas/rzg2l-cru/rzg2l-video.c  |  5 +++--
 4 files changed, 16 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 abc2a979833a..19f93b7fe6fb 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
@@ -355,6 +355,8 @@ static const u16 rzg2l_cru_regs[] = {
 };
 
 static const struct rzg2l_cru_info rzgl2_cru_info = {
+	.max_width = 2800,
+	.max_height = 4095,
 	.regs = rzg2l_cru_regs,
 };
 
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
index 00c3f7458e20..6a621073948a 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
@@ -27,9 +27,7 @@
 #define RZG2L_CRU_CSI2_VCHANNEL		4
 
 #define RZG2L_CRU_MIN_INPUT_WIDTH	320
-#define RZG2L_CRU_MAX_INPUT_WIDTH	2800
 #define RZG2L_CRU_MIN_INPUT_HEIGHT	240
-#define RZG2L_CRU_MAX_INPUT_HEIGHT	4095
 
 enum rzg2l_csi2_pads {
 	RZG2L_CRU_IP_SINK = 0,
@@ -81,6 +79,8 @@ struct rzg2l_cru_ip_format {
 };
 
 struct rzg2l_cru_info {
+	unsigned int max_width;
+	unsigned int max_height;
 	const u16 *regs;
 };
 
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
index 76a2b451f1da..7836c7cd53dc 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
@@ -148,6 +148,8 @@ static int rzg2l_cru_ip_set_format(struct v4l2_subdev *sd,
 				   struct v4l2_subdev_state *state,
 				   struct v4l2_subdev_format *fmt)
 {
+	struct rzg2l_cru_dev *cru = v4l2_get_subdevdata(sd);
+	const struct rzg2l_cru_info *info = cru->info;
 	struct v4l2_mbus_framefmt *src_format;
 	struct v4l2_mbus_framefmt *sink_format;
 
@@ -170,9 +172,9 @@ static int rzg2l_cru_ip_set_format(struct v4l2_subdev *sd,
 	sink_format->ycbcr_enc = fmt->format.ycbcr_enc;
 	sink_format->quantization = fmt->format.quantization;
 	sink_format->width = clamp_t(u32, fmt->format.width,
-				     RZG2L_CRU_MIN_INPUT_WIDTH, RZG2L_CRU_MAX_INPUT_WIDTH);
+				     RZG2L_CRU_MIN_INPUT_WIDTH, info->max_width);
 	sink_format->height = clamp_t(u32, fmt->format.height,
-				      RZG2L_CRU_MIN_INPUT_HEIGHT, RZG2L_CRU_MAX_INPUT_HEIGHT);
+				      RZG2L_CRU_MIN_INPUT_HEIGHT, info->max_height);
 
 	fmt->format = *sink_format;
 
@@ -197,6 +199,9 @@ static int rzg2l_cru_ip_enum_frame_size(struct v4l2_subdev *sd,
 					struct v4l2_subdev_state *state,
 					struct v4l2_subdev_frame_size_enum *fse)
 {
+	struct rzg2l_cru_dev *cru = v4l2_get_subdevdata(sd);
+	const struct rzg2l_cru_info *info = cru->info;
+
 	if (fse->index != 0)
 		return -EINVAL;
 
@@ -205,8 +210,8 @@ static int rzg2l_cru_ip_enum_frame_size(struct v4l2_subdev *sd,
 
 	fse->min_width = RZG2L_CRU_MIN_INPUT_WIDTH;
 	fse->min_height = RZG2L_CRU_MIN_INPUT_HEIGHT;
-	fse->max_width = RZG2L_CRU_MAX_INPUT_WIDTH;
-	fse->max_height = RZG2L_CRU_MAX_INPUT_HEIGHT;
+	fse->max_width = info->max_width;
+	fse->max_height = info->max_height;
 
 	return 0;
 }
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index f25fd9b35c55..9e5e79c6ca98 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -690,6 +690,7 @@ int rzg2l_cru_dma_register(struct rzg2l_cru_dev *cru)
 static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
 				   struct v4l2_pix_format *pix)
 {
+	const struct rzg2l_cru_info *info = cru->info;
 	const struct rzg2l_cru_ip_format *fmt;
 
 	fmt = rzg2l_cru_ip_format_to_fmt(pix->pixelformat);
@@ -712,8 +713,8 @@ static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
 	}
 
 	/* Limit to CRU capabilities */
-	v4l_bound_align_image(&pix->width, 320, RZG2L_CRU_MAX_INPUT_WIDTH, 1,
-			      &pix->height, 240, RZG2L_CRU_MAX_INPUT_HEIGHT, 2, 0);
+	v4l_bound_align_image(&pix->width, 320, info->max_width, 1,
+			      &pix->height, 240, info->max_height, 2, 0);
 
 	pix->bytesperline = pix->width * fmt->bpp;
 	pix->sizeimage = pix->bytesperline * pix->height;
-- 
2.34.1