[PATCH v3 16/17] media: rzg2l-cru: Add function pointer to configure CSI

Tommaso Merciai
2025-02-26T15:27:33Z

Add a `csi_setup` function pointer to the `rzg2l_cru_info` structure and
pass it as part of the OF data. On RZ/G3E and RZ/V2H(P) SoCs, additional
register configurations are required compared to the RZ/G2L SoC.

Modify `rzg2l_cru_csi2_setup()` to be referenced through this function
pointer and update the code to use it accordingly.

This change is in preparation for adding support for RZ/G3E and RZ/V2H(P)
SoCs.

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
Changes since v2:
- Collected tag

drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c | 1 +
drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h | 6 ++++++
drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c | 8 ++++----
3 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
index e4fb3e12d6bf..3ae0cd83af16 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
@@ -363,6 +363,7 @@ static const struct rzg2l_cru_info rzgl2_cru_info = {
.enable_interrupts = rzg2l_cru_enable_interrupts,
.disable_interrupts = rzg2l_cru_disable_interrupts,
.fifo_empty = rzg2l_fifo_empty,
+ .csi_setup = rzg2l_cru_csi2_setup,
};

static const struct of_device_id rzg2l_cru_of_id_table[] = {
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
index 2e17bfef43ce..ccaba5220f1c 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
@@ -89,6 +89,9 @@ struct rzg2l_cru_info {
void (*enable_interrupts)(struct rzg2l_cru_dev *cru);
void (*disable_interrupts)(struct rzg2l_cru_dev *cru);
bool (*fifo_empty)(struct rzg2l_cru_dev *cru);
+ void (*csi_setup)(struct rzg2l_cru_dev *cru,
+ const struct rzg2l_cru_ip_format *ip_fmt,
+ u8 csi_vc);
};

/**
@@ -187,5 +190,8 @@ void rzg2l_cru_enable_interrupts(struct rzg2l_cru_dev *cru);
void rzg2l_cru_disable_interrupts(struct rzg2l_cru_dev *cru);

bool rzg2l_fifo_empty(struct rzg2l_cru_dev *cru);
+void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru,
+ const struct rzg2l_cru_ip_format *ip_fmt,
+ u8 csi_vc);

#endif
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index 83d7baa07dc7..a3c4e2a0bef6 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -242,9 +242,9 @@ static void rzg2l_cru_initialize_axi(struct rzg2l_cru_dev *cru)
rzg2l_cru_write(cru, AMnAXIATTR, amnaxiattr);
}

-static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru,
- const struct rzg2l_cru_ip_format *ip_fmt,
- u8 csi_vc)
+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);
@@ -266,7 +266,7 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
const struct rzg2l_cru_ip_format *cru_ip_fmt;

cru_ip_fmt = rzg2l_cru_ip_code_to_fmt(ip_sd_fmt->code);
- rzg2l_cru_csi2_setup(cru, cru_ip_fmt, csi_vc);
+ info->csi_setup(cru, cru_ip_fmt, csi_vc);

/* Output format */
cru_video_fmt = rzg2l_cru_ip_format_to_fmt(cru->format.pixelformat);
--
2.43.0