[PATCH v5 13/17] media: rzg2l-cru: Add image_conv offset to OF data

Tommaso Merciai
2025-03-28T17:32:53Z

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

Add `image_conv` field to the `rzg2l_cru_info` structure to store the
register offset for image conversion control. RZ/G2L uses `ICnMC`, while
RZ/G3E and RZ/V2H(P) use `ICnIPMC_C0`.

Update `rzg2l_cru_initialize_image_conv()` and `rzg2l_cru_csi2_setup()`
to use this `image_conv` offset from the OF data, facilitating future
support for RZ/G3E and RZ/V2H(P) SoCs.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.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, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
index 19f93b7fe6fb9..7e94ae8039677 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
@@ -357,6 +357,7 @@ static const u16 rzg2l_cru_regs[] = {
static const struct rzg2l_cru_info rzgl2_cru_info = {
.max_width = 2800,
.max_height = 4095,
+ .image_conv = ICnMC,
.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 6a621073948aa..ca156772b949b 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
@@ -81,6 +81,7 @@ struct rzg2l_cru_ip_format {
struct rzg2l_cru_info {
unsigned int max_width;
unsigned int max_height;
+ u16 image_conv;
const u16 *regs;
};

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index 395c4d3d0f0fa..e13f633a687b2 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -246,20 +246,22 @@ static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru,
const struct rzg2l_cru_ip_format *ip_fmt,
u8 csi_vc)
{
+ const struct rzg2l_cru_info *info = cru->info;
u32 icnmc = ICnMC_INF(ip_fmt->datatype);

- icnmc |= (rzg2l_cru_read(cru, ICnMC) & ~ICnMC_INF_MASK);
+ icnmc |= (rzg2l_cru_read(cru, info->image_conv) & ~ICnMC_INF_MASK);

/* Set virtual channel CSI2 */
icnmc |= ICnMC_VCSEL(csi_vc);

- rzg2l_cru_write(cru, ICnMC, icnmc);
+ rzg2l_cru_write(cru, info->image_conv, icnmc);
}

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_info *info = cru->info;
const struct rzg2l_cru_ip_format *cru_video_fmt;
const struct rzg2l_cru_ip_format *cru_ip_fmt;

@@ -276,11 +278,11 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,

/* If input and output use same colorspace, do bypass mode */
if (cru_ip_fmt->yuv == cru_video_fmt->yuv)
- rzg2l_cru_write(cru, ICnMC,
- rzg2l_cru_read(cru, ICnMC) | ICnMC_CSCTHR);
+ rzg2l_cru_write(cru, info->image_conv,
+ rzg2l_cru_read(cru, info->image_conv) | ICnMC_CSCTHR);
else
- rzg2l_cru_write(cru, ICnMC,
- rzg2l_cru_read(cru, ICnMC) & (~ICnMC_CSCTHR));
+ rzg2l_cru_write(cru, info->image_conv,
+ rzg2l_cru_read(cru, info->image_conv) & (~ICnMC_CSCTHR));

/* Set output data format */
rzg2l_cru_write(cru, ICnDMR, cru_video_fmt->icndmr);
--
2.43.0