diff mbox series

[v5,13/22] media: rzg2l-cru: Simplify handling of supported formats

Message ID 20241011173052.1088341-14-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive)
State Superseded
Delegated to: Kieran Bingham
Headers show
Series media: platform: rzg2l-cru: CSI-2 and CRU enhancements | expand

Commit Message

Lad, Prabhakar Oct. 11, 2024, 5:30 p.m. UTC 
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Refactor the handling of supported formats in the RZ/G2L CRU driver by
moving the `rzg2l_cru_ip_format` struct to the common header for reuse
across multiple files and adding `pixelformat` and `bpp` members to it.
This change centralizes format handling, making it easier to manage and
extend.

New helper functions, `rzg2l_cru_ip_format_to_fmt()` and
`rzg2l_cru_ip_index_to_fmt()`, are added to retrieve format information
based on 4CC format and index, respectively. These helpers allow the
removal of the now redundant `rzg2l_cru_format_from_pixel()` function.

The new helpers are used in `rzg2l_cru_format_bytesperline()`,
`rzg2l_cru_format_align()`, and `rzg2l_cru_enum_fmt_vid_cap()`,
streamlining the handling of supported formats and improving code
maintainability.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 .../platform/renesas/rzg2l-cru/rzg2l-cru.h    |  6 ++++
 .../platform/renesas/rzg2l-cru/rzg2l-ip.c     | 22 +++++++++++++
 .../platform/renesas/rzg2l-cru/rzg2l-video.c  | 33 +++++--------------
 3 files changed, 37 insertions(+), 24 deletions(-)

Comments

Laurent Pinchart Oct. 15, 2024, 10:23 a.m. UTC | #1 
Hi Prabhakar,

Thank you for the patch.

On Fri, Oct 11, 2024 at 06:30:43PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> Refactor the handling of supported formats in the RZ/G2L CRU driver by
> moving the `rzg2l_cru_ip_format` struct to the common header for reuse
> across multiple files and adding `pixelformat` and `bpp` members to it.

The structure is already in a common header. You can write

Refactor the handling of supported formats in the RZ/G2L CRU driver by
adding `pixelformat` and `bpp` members to the `rzg2l_cru_ip_format`
structure.

> This change centralizes format handling, making it easier to manage and
> extend.
> 
> New helper functions, `rzg2l_cru_ip_format_to_fmt()` and
> `rzg2l_cru_ip_index_to_fmt()`, are added to retrieve format information
> based on 4CC format and index, respectively. These helpers allow the
> removal of the now redundant `rzg2l_cru_format_from_pixel()` function.
> 
> The new helpers are used in `rzg2l_cru_format_bytesperline()`,
> `rzg2l_cru_format_align()`, and `rzg2l_cru_enum_fmt_vid_cap()`,
> streamlining the handling of supported formats and improving code
> maintainability.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

> ---
>  .../platform/renesas/rzg2l-cru/rzg2l-cru.h    |  6 ++++
>  .../platform/renesas/rzg2l-cru/rzg2l-ip.c     | 22 +++++++++++++
>  .../platform/renesas/rzg2l-cru/rzg2l-video.c  | 33 +++++--------------
>  3 files changed, 37 insertions(+), 24 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
> index 9b1ba015df3b..327516272e53 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
> @@ -66,10 +66,14 @@ struct rzg2l_cru_ip {
>   * struct rzg2l_cru_ip_format - CRU IP format
>   * @code: Media bus code
>   * @datatype: MIPI CSI2 data type
> + * @format: 4CC format identifier (V4L2_PIX_FMT_*)
> + * @bpp: bytes per pixel
>   */
>  struct rzg2l_cru_ip_format {
>  	u32 code;
>  	u32 datatype;
> +	u32 format;
> +	u8 bpp;
>  };
>  
>  /**
> @@ -161,5 +165,7 @@ 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);
> +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_format_to_fmt(u32 format);
> +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_index_to_fmt(u32 index);
>  
>  #endif
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> index 8f9683bf31fa..a40b0184b955 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> @@ -14,6 +14,8 @@ static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
>  	{
>  		.code = MEDIA_BUS_FMT_UYVY8_1X16,
>  		.datatype = MIPI_CSI2_DT_YUV422_8B,
> +		.format = V4L2_PIX_FMT_UYVY,
> +		.bpp = 2,
>  	},
>  };
>  
> @@ -28,6 +30,26 @@ const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code)
>  	return NULL;
>  }
>  
> +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_format_to_fmt(u32 format)
> +{
> +	unsigned int i;
> +
> +	for (i = 0; i < ARRAY_SIZE(rzg2l_cru_ip_formats); i++) {
> +		if (rzg2l_cru_ip_formats[i].format == format)
> +			return &rzg2l_cru_ip_formats[i];
> +	}
> +
> +	return NULL;
> +}
> +
> +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_index_to_fmt(u32 index)
> +{
> +	if (index >= ARRAY_SIZE(rzg2l_cru_ip_formats))
> +		return NULL;
> +
> +	return &rzg2l_cru_ip_formats[index];
> +}
> +
>  struct v4l2_mbus_framefmt *rzg2l_cru_ip_get_src_fmt(struct rzg2l_cru_dev *cru)
>  {
>  	struct v4l2_subdev_state *state;
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> index 6a4f0455dc9c..a0fa4542ac43 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> @@ -812,37 +812,19 @@ int rzg2l_cru_dma_register(struct rzg2l_cru_dev *cru)
>   * V4L2 stuff
>   */
>  
> -static const struct v4l2_format_info rzg2l_cru_formats[] = {
> -	{
> -		.format = V4L2_PIX_FMT_UYVY,
> -		.bpp[0] = 2,
> -	},
> -};
> -
> -const struct v4l2_format_info *rzg2l_cru_format_from_pixel(u32 format)
> -{
> -	unsigned int i;
> -
> -	for (i = 0; i < ARRAY_SIZE(rzg2l_cru_formats); i++)
> -		if (rzg2l_cru_formats[i].format == format)
> -			return rzg2l_cru_formats + i;
> -
> -	return NULL;
> -}
> -
>  static u32 rzg2l_cru_format_bytesperline(struct v4l2_pix_format *pix)
>  {
> -	const struct v4l2_format_info *fmt;
> +	const struct rzg2l_cru_ip_format *fmt;
>  
> -	fmt = rzg2l_cru_format_from_pixel(pix->pixelformat);
> +	fmt = rzg2l_cru_ip_format_to_fmt(pix->pixelformat);
>  
> -	return pix->width * fmt->bpp[0];
> +	return pix->width * fmt->bpp;
>  }
>  
>  static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
>  				   struct v4l2_pix_format *pix)
>  {
> -	if (!rzg2l_cru_format_from_pixel(pix->pixelformat))
> +	if (!rzg2l_cru_ip_format_to_fmt(pix->pixelformat))
>  		pix->pixelformat = RZG2L_CRU_DEFAULT_FORMAT;
>  
>  	switch (pix->field) {
> @@ -934,10 +916,13 @@ static int rzg2l_cru_g_fmt_vid_cap(struct file *file, void *priv,
>  static int rzg2l_cru_enum_fmt_vid_cap(struct file *file, void *priv,
>  				      struct v4l2_fmtdesc *f)
>  {
> -	if (f->index >= ARRAY_SIZE(rzg2l_cru_formats))
> +	const struct rzg2l_cru_ip_format *fmt;
> +
> +	fmt = rzg2l_cru_ip_index_to_fmt(f->index);
> +	if (!fmt)
>  		return -EINVAL;
>  
> -	f->pixelformat = rzg2l_cru_formats[f->index].format;
> +	f->pixelformat = fmt->format;
>  
>  	return 0;
>  }
Lad, Prabhakar Oct. 15, 2024, 5:47 p.m. UTC | #2 
Hi Laurent,

Thank you for the review.

On Tue, Oct 15, 2024 at 11:23 AM Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> Hi Prabhakar,
>
> Thank you for the patch.
>
> On Fri, Oct 11, 2024 at 06:30:43PM +0100, Prabhakar wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > Refactor the handling of supported formats in the RZ/G2L CRU driver by
> > moving the `rzg2l_cru_ip_format` struct to the common header for reuse
> > across multiple files and adding `pixelformat` and `bpp` members to it.
>
> The structure is already in a common header. You can write
>
> Refactor the handling of supported formats in the RZ/G2L CRU driver by
> adding `pixelformat` and `bpp` members to the `rzg2l_cru_ip_format`
> structure.
>
I will update the commit message as above.

Cheers,
Prabhakar
diff mbox series

Patch

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
index 9b1ba015df3b..327516272e53 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
@@ -66,10 +66,14 @@  struct rzg2l_cru_ip {
  * struct rzg2l_cru_ip_format - CRU IP format
  * @code: Media bus code
  * @datatype: MIPI CSI2 data type
+ * @format: 4CC format identifier (V4L2_PIX_FMT_*)
+ * @bpp: bytes per pixel
  */
 struct rzg2l_cru_ip_format {
 	u32 code;
 	u32 datatype;
+	u32 format;
+	u8 bpp;
 };
 
 /**
@@ -161,5 +165,7 @@  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);
+const struct rzg2l_cru_ip_format *rzg2l_cru_ip_format_to_fmt(u32 format);
+const struct rzg2l_cru_ip_format *rzg2l_cru_ip_index_to_fmt(u32 index);
 
 #endif
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
index 8f9683bf31fa..a40b0184b955 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
@@ -14,6 +14,8 @@  static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
 	{
 		.code = MEDIA_BUS_FMT_UYVY8_1X16,
 		.datatype = MIPI_CSI2_DT_YUV422_8B,
+		.format = V4L2_PIX_FMT_UYVY,
+		.bpp = 2,
 	},
 };
 
@@ -28,6 +30,26 @@  const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code)
 	return NULL;
 }
 
+const struct rzg2l_cru_ip_format *rzg2l_cru_ip_format_to_fmt(u32 format)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(rzg2l_cru_ip_formats); i++) {
+		if (rzg2l_cru_ip_formats[i].format == format)
+			return &rzg2l_cru_ip_formats[i];
+	}
+
+	return NULL;
+}
+
+const struct rzg2l_cru_ip_format *rzg2l_cru_ip_index_to_fmt(u32 index)
+{
+	if (index >= ARRAY_SIZE(rzg2l_cru_ip_formats))
+		return NULL;
+
+	return &rzg2l_cru_ip_formats[index];
+}
+
 struct v4l2_mbus_framefmt *rzg2l_cru_ip_get_src_fmt(struct rzg2l_cru_dev *cru)
 {
 	struct v4l2_subdev_state *state;
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index 6a4f0455dc9c..a0fa4542ac43 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -812,37 +812,19 @@  int rzg2l_cru_dma_register(struct rzg2l_cru_dev *cru)
  * V4L2 stuff
  */
 
-static const struct v4l2_format_info rzg2l_cru_formats[] = {
-	{
-		.format = V4L2_PIX_FMT_UYVY,
-		.bpp[0] = 2,
-	},
-};
-
-const struct v4l2_format_info *rzg2l_cru_format_from_pixel(u32 format)
-{
-	unsigned int i;
-
-	for (i = 0; i < ARRAY_SIZE(rzg2l_cru_formats); i++)
-		if (rzg2l_cru_formats[i].format == format)
-			return rzg2l_cru_formats + i;
-
-	return NULL;
-}
-
 static u32 rzg2l_cru_format_bytesperline(struct v4l2_pix_format *pix)
 {
-	const struct v4l2_format_info *fmt;
+	const struct rzg2l_cru_ip_format *fmt;
 
-	fmt = rzg2l_cru_format_from_pixel(pix->pixelformat);
+	fmt = rzg2l_cru_ip_format_to_fmt(pix->pixelformat);
 
-	return pix->width * fmt->bpp[0];
+	return pix->width * fmt->bpp;
 }
 
 static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru,
 				   struct v4l2_pix_format *pix)
 {
-	if (!rzg2l_cru_format_from_pixel(pix->pixelformat))
+	if (!rzg2l_cru_ip_format_to_fmt(pix->pixelformat))
 		pix->pixelformat = RZG2L_CRU_DEFAULT_FORMAT;
 
 	switch (pix->field) {
@@ -934,10 +916,13 @@  static int rzg2l_cru_g_fmt_vid_cap(struct file *file, void *priv,
 static int rzg2l_cru_enum_fmt_vid_cap(struct file *file, void *priv,
 				      struct v4l2_fmtdesc *f)
 {
-	if (f->index >= ARRAY_SIZE(rzg2l_cru_formats))
+	const struct rzg2l_cru_ip_format *fmt;
+
+	fmt = rzg2l_cru_ip_index_to_fmt(f->index);
+	if (!fmt)
 		return -EINVAL;
 
-	f->pixelformat = rzg2l_cru_formats[f->index].format;
+	f->pixelformat = fmt->format;
 
 	return 0;
 }