[PATCH v5 11/22] media: rzg2l-cru: Simplify configuring input format for image processing

Prabhakar
2024-10-11T17:31:13Z

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@bp.renesas.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