linux-kernel - Re: [PATCH v9 1/4] media: videodev2.h, v4l2-ioctl: add rkisp1 meta buffer format

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Message-ID: <9102bcf8-0279-7972-daff-b15aaf98804d@cisco.com>
Date:   Wed, 6 Nov 2019 12:22:50 +0000
From:   "Hans Verkuil (hansverk)" <hansverk@...co.com>
To:     Helen Koike <helen.koike@...labora.com>,
        "linux-rockchip@...ts.infradead.org" 
        <linux-rockchip@...ts.infradead.org>
CC:     "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        "eddie.cai.linux@...il.com" <eddie.cai.linux@...il.com>,
        "mchehab@...nel.org" <mchehab@...nel.org>,
        "heiko@...ech.de" <heiko@...ech.de>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "jeffy.chen@...k-chips.com" <jeffy.chen@...k-chips.com>,
        "zyc@...k-chips.com" <zyc@...k-chips.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "tfiga@...omium.org" <tfiga@...omium.org>,
        "hans.verkuil@...co.com" <hans.verkuil@...co.com>,
        "laurent.pinchart@...asonboard.com" 
        <laurent.pinchart@...asonboard.com>,
        "sakari.ailus@...ux.intel.com" <sakari.ailus@...ux.intel.com>,
        "kernel@...labora.com" <kernel@...labora.com>,
        "ezequiel@...labora.com" <ezequiel@...labora.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "zhengsq@...k-chips.com" <zhengsq@...k-chips.com>,
        Jacob Chen <jacob2.chen@...k-chips.com>
Subject: Re: [PATCH v9 1/4] media: videodev2.h, v4l2-ioctl: add rkisp1 meta
 buffer format

On 11/6/19 1:01 PM, Helen Koike wrote:
> From: Shunqian Zheng <zhengsq@...k-chips.com>
> 
> Add the Rockchip ISP1 specific processing parameter format
> V4L2_META_FMT_RK_ISP1_PARAMS and metadata format
> V4L2_META_FMT_RK_ISP1_STAT_3A for 3A.
> 
> Signed-off-by: Shunqian Zheng <zhengsq@...k-chips.com>
> Signed-off-by: Jacob Chen <jacob2.chen@...k-chips.com>
> Acked-by: Hans Verkuil <hans.verkuil@...co.com>

I acked this? It is missing documentation for these new formats.

> [refactored for upstream]
> Signed-off-by: Helen Koike <helen.koike@...labora.com>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> 
> ---
> 
> Changes in v9:
> - Add reviewed-by tag from Laurent
> 
> Changes in v8: None
> Changes in v7:
> - s/IPU3/RK_ISP1
> 
>  drivers/media/v4l2-core/v4l2-ioctl.c | 2 ++
>  include/uapi/linux/videodev2.h       | 4 ++++
>  2 files changed, 6 insertions(+)
> 
> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
> index 315ac12c3e0a..ade990554caf 100644
> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> @@ -1341,6 +1341,8 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
>  	case V4L2_META_FMT_UVC:		descr = "UVC Payload Header Metadata"; break;
>  	case V4L2_META_FMT_D4XX:	descr = "Intel D4xx UVC Metadata"; break;
>  	case V4L2_META_FMT_VIVID:       descr = "Vivid Metadata"; break;
> +	case V4L2_META_FMT_RK_ISP1_PARAMS:	descr = "Rockchip ISP1 3A params"; break;

params -> Params

> +	case V4L2_META_FMT_RK_ISP1_STAT_3A:	descr = "Rockchip ISP1 3A statistics"; break;

statistics -> Statistics

>  
>  	default:
>  		/* Compressed formats */
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index f98bbcced8ff..56798b09cd85 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -762,6 +762,10 @@ struct v4l2_pix_format {
>  #define V4L2_META_FMT_D4XX        v4l2_fourcc('D', '4', 'X', 'X') /* D4XX Payload Header metadata */
>  #define V4L2_META_FMT_VIVID	  v4l2_fourcc('V', 'I', 'V', 'D') /* Vivid Metadata */
>  
> +/* Vendor specific - used for RK_ISP1 camera sub-system */
> +#define V4L2_META_FMT_RK_ISP1_PARAMS	v4l2_fourcc('R', 'K', '1', 'P') /* Rockchip ISP1 params */
> +#define V4L2_META_FMT_RK_ISP1_STAT_3A	v4l2_fourcc('R', 'K', '1', 'S') /* Rockchip ISP1 3A statistics */
> +
>  /* priv field value to indicates that subsequent fields are valid. */
>  #define V4L2_PIX_FMT_PRIV_MAGIC		0xfeedcafe
>  
> 

Regards,

	Hans