linux-kernel - Re: [PATCH v2 2/3] media: vimc: Add missing {RGB,BGR,GBR}888 media bus codes

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Date:   Thu, 26 Mar 2020 15:56:12 -0600
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Nícolas F. R. A. Prado 
        <nfraprado@...tonmail.com>, linux-media@...r.kernel.org
Cc:     Helen Koike <helen.koike@...labora.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil@...all.nl>,
        linux-kernel@...r.kernel.org, lkcamp@...ts.libreplanetbr.org,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH v2 2/3] media: vimc: Add missing {RGB,BGR,GBR}888 media
 bus codes

On 3/26/20 3:47 PM, Nícolas F. R. A. Prado wrote:
> Add missing RGB888_*, BGR888_* and GBR888_* media bus codes in the
> vimc_pix_map_list. Since there is no GBR24 pixelformat, use the RGB24
> pixelformat for MEDIA_BUS_FMT_GBR888_1X24.
> 
> Co-developed-by: Vitor Massaru Iha <vitor@...saru.org>
> Signed-off-by: Vitor Massaru Iha <vitor@...saru.org>
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...tonmail.com>
> ---
> 
> Changes in v2:
> - Fix array formatting
> - Change commit message to reflect v2 changes
> - Change code array size
> - Add other BGR888 and RGB888 formats to BGR24 and RGB24 pixelformats
> 
>   drivers/media/platform/vimc/vimc-common.c | 16 ++++++++++++++--
>   drivers/media/platform/vimc/vimc-common.h |  2 +-
>   2 files changed, 15 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/media/platform/vimc/vimc-common.c b/drivers/media/platform/vimc/vimc-common.c
> index 119846f3eaa5..11489334cff7 100644
> --- a/drivers/media/platform/vimc/vimc-common.c
> +++ b/drivers/media/platform/vimc/vimc-common.c
> @@ -19,13 +19,25 @@ static const struct vimc_pix_map vimc_pix_map_list[] = {
>   
>   	/* RGB formats */
>   	{
> -		.code = { MEDIA_BUS_FMT_BGR888_1X24 },
> +		.code = {
> +			MEDIA_BUS_FMT_BGR888_1X24,
> +			MEDIA_BUS_FMT_BGR888_3X8
> +		},
>   		.pixelformat = V4L2_PIX_FMT_BGR24,
>   		.bpp = 3,
>   		.bayer = false,
>   	},
>   	{
> -		.code = { MEDIA_BUS_FMT_RGB888_1X24 },
> +		.code = {
> +			MEDIA_BUS_FMT_RGB888_1X24,
> +			MEDIA_BUS_FMT_RGB888_2X12_BE,
> +			MEDIA_BUS_FMT_RGB888_2X12_LE,
> +			MEDIA_BUS_FMT_RGB888_3X8,
> +			MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
> +			MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA,
> +			MEDIA_BUS_FMT_RGB888_1X32_PADHI,
> +			MEDIA_BUS_FMT_GBR888_1X24
> +		},
>   		.pixelformat = V4L2_PIX_FMT_RGB24,
>   		.bpp = 3,
>   		.bayer = false,
> diff --git a/drivers/media/platform/vimc/vimc-common.h b/drivers/media/platform/vimc/vimc-common.h
> index 585441694c86..d5e0e8d32542 100644
> --- a/drivers/media/platform/vimc/vimc-common.h
> +++ b/drivers/media/platform/vimc/vimc-common.h
> @@ -69,7 +69,7 @@ do {									\
>    * V4L2_PIX_FMT_* fourcc pixelformat and its bytes per pixel (bpp)
>    */
>   struct vimc_pix_map {
> -	unsigned int code[1];

> +	unsigned int code[8];
Please add a define for this instead of hard coded value.


>   	unsigned int bpp;
>   	u32 pixelformat;
>   	bool bayer;
>