linux-kernel - Re: [PATCH v3 1/9] media: vimc: Move get_source

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Date:   Thu, 20 Aug 2020 16:32:05 +0100
From:   Kieran Bingham <kieran.bingham@...asonboard.com>
To:     Kaaira Gupta <kgupta@...iitr.ac.in>,
        Helen Koike <helen.koike@...labora.com>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/9] media: vimc: Move get_source_entity to vimc-common

Hi Kaaira,

On 19/08/2020 19:04, Kaaira Gupta wrote:
> Move the function vimc_get_source_entity() to vimc-common.c to make it
> reusable.
> 
> Signed-off-by: Kaaira Gupta <kgupta@...iitr.ac.in>

Reviewed-by: Kieran Bingham <kieran.bingham@...asonboard.com>

> ---
>  drivers/media/test-drivers/vimc/vimc-common.c | 14 +++++++++++
>  drivers/media/test-drivers/vimc/vimc-common.h | 12 ++++++++++
>  .../media/test-drivers/vimc/vimc-streamer.c   | 24 -------------------
>  3 files changed, 26 insertions(+), 24 deletions(-)
> 
> diff --git a/drivers/media/test-drivers/vimc/vimc-common.c b/drivers/media/test-drivers/vimc/vimc-common.c
> index 0d97b25ce21e..91c8992bb391 100644
> --- a/drivers/media/test-drivers/vimc/vimc-common.c
> +++ b/drivers/media/test-drivers/vimc/vimc-common.c
> @@ -417,3 +417,17 @@ int vimc_ent_sd_register(struct vimc_ent_device *ved,
>  	media_entity_cleanup(&sd->entity);
>  	return ret;
>  }
> +
> +struct media_entity *vimc_get_source_entity(struct media_entity *ent)
> +{
> +	struct media_pad *pad;
> +	int i;
> +
> +	for (i = 0; i < ent->num_pads; i++) {
> +		if (ent->pads[i].flags & MEDIA_PAD_FL_SOURCE)
> +			continue;
> +		pad = media_entity_remote_pad(&ent->pads[i]);
> +		return pad ? pad->entity : NULL;
> +	}
> +	return NULL;
> +}
> diff --git a/drivers/media/test-drivers/vimc/vimc-common.h b/drivers/media/test-drivers/vimc/vimc-common.h
> index a289434e75ba..4c580d854007 100644
> --- a/drivers/media/test-drivers/vimc/vimc-common.h
> +++ b/drivers/media/test-drivers/vimc/vimc-common.h
> @@ -230,4 +230,16 @@ int vimc_ent_sd_register(struct vimc_ent_device *ved,
>   */
>  int vimc_vdev_link_validate(struct media_link *link);
>  
> +/**
> + * vimc_get_source_entity - get the entity connected with the first sink pad
> + *
> + * @ent:	reference media_entity
> + *
> + * Helper function that returns the media entity containing the source pad
> + * linked with the first sink pad from the given media entity pad list.
> + *
> + * Return: The source pad or NULL, if it wasn't found.
> + */
> +struct media_entity *vimc_get_source_entity(struct media_entity *ent);
> +
>  #endif
> diff --git a/drivers/media/test-drivers/vimc/vimc-streamer.c b/drivers/media/test-drivers/vimc/vimc-streamer.c
> index 451a32c0d034..4f8384246042 100644
> --- a/drivers/media/test-drivers/vimc/vimc-streamer.c
> +++ b/drivers/media/test-drivers/vimc/vimc-streamer.c
> @@ -12,30 +12,6 @@
>  
>  #include "vimc-streamer.h"
>  
> -/**
> - * vimc_get_source_entity - get the entity connected with the first sink pad
> - *
> - * @ent:	reference media_entity
> - *
> - * Helper function that returns the media entity containing the source pad
> - * linked with the first sink pad from the given media entity pad list.
> - *
> - * Return: The source pad or NULL, if it wasn't found.
> - */
> -static struct media_entity *vimc_get_source_entity(struct media_entity *ent)
> -{
> -	struct media_pad *pad;
> -	int i;
> -
> -	for (i = 0; i < ent->num_pads; i++) {
> -		if (ent->pads[i].flags & MEDIA_PAD_FL_SOURCE)
> -			continue;
> -		pad = media_entity_remote_pad(&ent->pads[i]);
> -		return pad ? pad->entity : NULL;
> -	}
> -	return NULL;
> -}
> -
>  /**
>   * vimc_streamer_pipeline_terminate - Disable stream in all ved in stream
>   *
> 

-- 
Regards
--
Kieran