| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20240927232057.GO12322@pendragon.ideasonboard.com>
Date: Sat, 28 Sep 2024 02:20:57 +0300
From: Laurent Pinchart <laurent.pinchart@...asonboard.com>
To: Prabhakar <prabhakar.csengg@...il.com>
Cc: Sakari Ailus <sakari.ailus@...ux.intel.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Hans Verkuil <hverkuil-cisco@...all.nl>,
linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-renesas-soc@...r.kernel.org,
Biju Das <biju.das.jz@...renesas.com>,
Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH v2 15/16] media: renesas: rzg2l-cru: Refactor ICnDMR
register configuration
Hi Prabhakar,
Thank you for the patch.
On Tue, Sep 10, 2024 at 06:53:56PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
>
> Refactor the ICnDMR register configuration in
> `rzg2l_cru_initialize_image_conv()` by adding a new member `icndmr` in the
> `rzg2l_cru_ip_format` structure. This change introduces a new function
> `rzg2l_cru_ip_pix_fmt_to_icndmr()` to map the pixel format to its
> corresponding ICnDMR value.
Skip this new function, use the function thar returns a
rzg2l_cru_ip_format pointer, and access the icndmr field from there.
rzg2l_cru_initialize_image_conv() already gets the format info pointer,
so the code will be simpler and more efficient.
>
> Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> ---
> drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h | 5 +++++
> drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c | 12 ++++++++++++
> .../media/platform/renesas/rzg2l-cru/rzg2l-video.c | 10 ++++------
> 3 files changed, 21 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
> index 24097df14881..3da9e8e7025a 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
> @@ -31,6 +31,8 @@
> #define RZG2L_CRU_MIN_INPUT_HEIGHT 240
> #define RZG2L_CRU_MAX_INPUT_HEIGHT 4095
>
> +#define ICnDMR_YCMODE_UYVY (1 << 4)
Not a candidate for this patch, but I would recommend moving all the
register definitions to this file, or to a rzg2l-cru-regs.h file.
> +
> enum rzg2l_csi2_pads {
> RZG2L_CRU_IP_SINK = 0,
> RZG2L_CRU_IP_SOURCE,
> @@ -68,12 +70,14 @@ struct rzg2l_cru_ip {
> * @format: 4CC format identifier (V4L2_PIX_FMT_*)
> * @datatype: MIPI CSI2 data type
> * @bpp: bytes per pixel
> + * @icndmr: ICnDMR register value
> */
> struct rzg2l_cru_ip_format {
> u32 code;
> u32 format;
> u32 datatype;
> u8 bpp;
> + u32 icndmr;
> };
>
> /**
> @@ -165,5 +169,6 @@ 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);
> u8 rzg2l_cru_ip_pix_fmt_to_bpp(u32 format);
> int rzg2l_cru_ip_index_to_pix_fmt(u32 index);
> +int rzg2l_cru_ip_pix_fmt_to_icndmr(u32 format);
>
> #endif
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> index c7bc82bf3f14..9b0563198b50 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> @@ -17,6 +17,7 @@ static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
> .format = V4L2_PIX_FMT_UYVY,
> .datatype = MIPI_CSI2_DT_YUV422_8B,
> .bpp = 2,
> + .icndmr = ICnDMR_YCMODE_UYVY,
> },
> };
>
> @@ -50,6 +51,17 @@ int rzg2l_cru_ip_index_to_pix_fmt(u32 index)
> return rzg2l_cru_ip_formats[index].format;
> }
>
> +int rzg2l_cru_ip_pix_fmt_to_icndmr(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].icndmr;
> +
> + return -EINVAL;
> +}
> +
> 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 c32608c557a3..1f25dcff2515 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> @@ -88,7 +88,6 @@
>
> /* CRU Data Output Mode Register */
> #define ICnDMR 0x26c
> -#define ICnDMR_YCMODE_UYVY (1 << 4)
>
> #define RZG2L_TIMEOUT_MS 100
> #define RZG2L_RETRIES 10
> @@ -316,6 +315,7 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
> const struct v4l2_format_info *src_finfo, *dst_finfo;
> const struct rzg2l_cru_ip_format *cru_ip_fmt;
> u32 icndmr;
> + int ret;
>
> cru_ip_fmt = rzg2l_cru_ip_code_to_fmt(ip_sd_fmt->code);
> if (!cru_ip_fmt)
> @@ -327,15 +327,13 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
> dst_finfo = v4l2_format_info(cru->format.pixelformat);
>
> /* Output format */
> - switch (cru->format.pixelformat) {
> - case V4L2_PIX_FMT_UYVY:
> - icndmr = ICnDMR_YCMODE_UYVY;
> - break;
> - default:
> + ret = rzg2l_cru_ip_pix_fmt_to_icndmr(cru->format.pixelformat);
> + if (ret < 0) {
> dev_err(cru->dev, "Invalid pixelformat (0x%x)\n",
> cru->format.pixelformat);
> return -EINVAL;
> }
> + icndmr = ret;
>
> /* If input and output use same colorspace, do bypass mode */
> if (v4l2_is_format_yuv(src_finfo) && v4l2_is_format_yuv(dst_finfo))
--
Regards,
Laurent Pinchart
Powered by blists - more mailing lists