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From:   Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To:     Jacopo Mondi <jacopo+renesas@jmondi.org>
Cc:     architt@codeaurora.org, a.hajda@samsung.com, airlied@linux.ie,
        daniel@ffwll.ch, peda@axentia.se,
        linux-renesas-soc@vger.kernel.org, linux-media@vger.kernel.org,
        devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH 5/8] media: Add LE version of RGB LVDS formats
Date:   Mon, 23 Apr 2018 16:06:01 +0300
Message-ID: <1733883.PFymhGyeZa@avalon>
Organization: Ideas on Board Oy
In-Reply-To: <1524130269-32688-6-git-send-email-jacopo+renesas@jmondi.org>
References: <1524130269-32688-1-git-send-email-jacopo+renesas@jmondi.org> <1524130269-32688-6-git-send-email-jacopo+renesas@jmondi.org>
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Hi Jacopo,

Thank you for the patch.

On Thursday, 19 April 2018 12:31:06 EEST Jacopo Mondi wrote:
> Some LVDS controller can output swapped versions of LVDS RGB formats.
> Define and document them in the list of supported media bus formats

I wouldn't introduce those new formats as we don't need them. As a general 
rule we would like to have at least one user for any new format added to the 
API.

> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
> ---
>  Documentation/media/uapi/v4l/subdev-formats.rst | 174 +++++++++++++++++++++
>  include/uapi/linux/media-bus-format.h           |   5 +-
>  2 files changed, 178 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/media/uapi/v4l/subdev-formats.rst
> b/Documentation/media/uapi/v4l/subdev-formats.rst index 9fcabe7..9a5263c
> 100644
> --- a/Documentation/media/uapi/v4l/subdev-formats.rst
> +++ b/Documentation/media/uapi/v4l/subdev-formats.rst
> @@ -1669,6 +1669,64 @@ JEIDA defined bit mapping will be named
>        - b\ :sub:`2`
>        - g\ :sub:`1`
>        - r\ :sub:`0`
> +    * .. _MEDIA-BUS-FMT-RGB666-1X7X3-SPWG_LE:
> +
> +      - MEDIA_BUS_FMT_RGB666_1X7X3_SPWG_LE
> +      - 0x101b
> +      - 0
> +      -
> +      -
> +      - b\ :sub:`2`
> +      - g\ :sub:`1`
> +      - r\ :sub:`0`
> +    * -
> +      -
> +      - 1
> +      -
> +      -
> +      - b\ :sub:`3`
> +      - g\ :sub:`2`
> +      - r\ :sub:`1`
> +    * -
> +      -
> +      - 2
> +      -
> +      -
> +      - b\ :sub:`4`
> +      - g\ :sub:`3`
> +      - r\ :sub:`2`
> +    * -
> +      -
> +      - 3
> +      -
> +      -
> +      - b\ :sub:`5`
> +      - g\ :sub:`4`
> +      - r\ :sub:`3`
> +    * -
> +      -
> +      - 4
> +      -
> +      -
> +      - d
> +      - g\ :sub:`5`
> +      - r\ :sub:`4`
> +    * -
> +      -
> +      - 5
> +      -
> +      -
> +      - d
> +      - b\ :sub:`0`
> +      - r\ :sub:`5`
> +    * -
> +      -
> +      - 6
> +      -
> +      -
> +      - d
> +      - b\ :sub:`1`
> +      - g\ :sub:`0`
>      * .. _MEDIA-BUS-FMT-RGB888-1X7X4-SPWG:
> 
>        - MEDIA_BUS_FMT_RGB888_1X7X4_SPWG
> @@ -1727,6 +1785,64 @@ JEIDA defined bit mapping will be named
>        - b\ :sub:`2`
>        - g\ :sub:`1`
>        - r\ :sub:`0`
> +    * .. _MEDIA-BUS-FMT-RGB888-1X7X4-SPWG_LE:
> +
> +      - MEDIA_BUS_FMT_RGB888_1X7X4_SPWG_LE
> +      - 0x101c
> +      - 0
> +      -
> +      - r\ :sub:`6`
> +      - b\ :sub:`2`
> +      - g\ :sub:`1`
> +      - r\ :sub:`0`
> +    * -
> +      -
> +      - 1
> +      -
> +      - r\ :sub:`7`
> +      - b\ :sub:`3`
> +      - g\ :sub:`2`
> +      - r\ :sub:`1`
> +    * -
> +      -
> +      - 2
> +      -
> +      - g\ :sub:`6`
> +      - b\ :sub:`4`
> +      - g\ :sub:`3`
> +      - r\ :sub:`2`
> +    * -
> +      -
> +      - 3
> +      -
> +      - g\ :sub:`7`
> +      - b\ :sub:`5`
> +      - g\ :sub:`4`
> +      - r\ :sub:`3`
> +    * -
> +      -
> +      - 4
> +      -
> +      - b\ :sub:`6`
> +      - d
> +      - g\ :sub:`5`
> +      - r\ :sub:`4`
> +    * -
> +      -
> +      - 5
> +      -
> +      - b\ :sub:`7`
> +      - d
> +      - b\ :sub:`0`
> +      - r\ :sub:`5`
> +    * -
> +      -
> +      - 6
> +      -
> +      - d
> +      - d
> +      - b\ :sub:`1`
> +      - g\ :sub:`0`
>      * .. _MEDIA-BUS-FMT-RGB888-1X7X4-JEIDA:
> 
>        - MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA
> @@ -1785,6 +1901,64 @@ JEIDA defined bit mapping will be named
>        - b\ :sub:`4`
>        - g\ :sub:`3`
>        - r\ :sub:`2`
> +    * .. _MEDIA-BUS-FMT-RGB888-1X7X4-JEIDA_LE:
> +
> +      - MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA_LE
> +      - 0x101d
> +      - 0
> +      -
> +      - r\ :sub:`0`
> +      - b\ :sub:`4`
> +      - g\ :sub:`3`
> +      - r\ :sub:`2`
> +    * -
> +      -
> +      - 1
> +      -
> +      - r\ :sub:`1`
> +      - b\ :sub:`5`
> +      - g\ :sub:`4`
> +      - r\ :sub:`3`
> +    * -
> +      -
> +      - 2
> +      -
> +      - g\ :sub:`0`
> +      - b\ :sub:`6`
> +      - g\ :sub:`5`
> +      - r\ :sub:`4`
> +    * -
> +      -
> +      - 3
> +      -
> +      - g\ :sub:`1`
> +      - b\ :sub:`7`
> +      - g\ :sub:`6`
> +      - r\ :sub:`5`
> +    * -
> +      -
> +      - 4
> +      -
> +      - b\ :sub:`0`
> +      - d
> +      - g\ :sub:`7`
> +      - r\ :sub:`6`
> +    * -
> +      -
> +      - 5
> +      -
> +      - b\ :sub:`1`
> +      - d
> +      - b\ :sub:`2`
> +      - r\ :sub:`7`
> +    * -
> +      -
> +      - 6
> +      -
> +      - d
> +      - d
> +      - b\ :sub:`3`
> +      - g\ :sub:`2`
> 
>  .. raw:: latex
> 
> diff --git a/include/uapi/linux/media-bus-format.h
> b/include/uapi/linux/media-bus-format.h index 9e35117..5bea7c0 100644
> --- a/include/uapi/linux/media-bus-format.h
> +++ b/include/uapi/linux/media-bus-format.h
> @@ -34,7 +34,7 @@
> 
>  #define MEDIA_BUS_FMT_FIXED			0x0001
> 
> -/* RGB - next is	0x101b */
> +/* RGB - next is	0x101f */
>  #define MEDIA_BUS_FMT_RGB444_1X12		0x1016
>  #define MEDIA_BUS_FMT_RGB444_2X8_PADHI_BE	0x1001
>  #define MEDIA_BUS_FMT_RGB444_2X8_PADHI_LE	0x1002
> @@ -49,13 +49,16 @@
>  #define MEDIA_BUS_FMT_RBG888_1X24		0x100e
>  #define MEDIA_BUS_FMT_RGB666_1X24_CPADHI	0x1015
>  #define MEDIA_BUS_FMT_RGB666_1X7X3_SPWG		0x1010
> +#define MEDIA_BUS_FMT_RGB666_1X7X3_SPWG_LE	0x101b
>  #define MEDIA_BUS_FMT_BGR888_1X24		0x1013
>  #define MEDIA_BUS_FMT_GBR888_1X24		0x1014
>  #define MEDIA_BUS_FMT_RGB888_1X24		0x100a
>  #define MEDIA_BUS_FMT_RGB888_2X12_BE		0x100b
>  #define MEDIA_BUS_FMT_RGB888_2X12_LE		0x100c
>  #define MEDIA_BUS_FMT_RGB888_1X7X4_SPWG		0x1011
> +#define MEDIA_BUS_FMT_RGB888_1X7X4_SPWG_LE	0x101c
>  #define MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA	0x1012
> +#define MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA_LE	0x101d
>  #define MEDIA_BUS_FMT_ARGB8888_1X32		0x100d
>  #define MEDIA_BUS_FMT_RGB888_1X32_PADHI		0x100f
>  #define MEDIA_BUS_FMT_RGB101010_1X30		0x1018

-- 
Regards,

Laurent Pinchart