linux-kernel - Re: [PATCH v2 0/2] media: staging: rkisp1: allow simultaneous streaming from multiple capture devices

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Date:   Wed, 10 Jun 2020 16:37:13 +0000
From:   Tomasz Figa <tfiga@...omium.org>
To:     Helen Koike <helen.koike@...labora.com>
Cc:     linux-media@...r.kernel.org, mchehab@...nel.org,
        linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        hans.verkuil@...co.com, kernel@...labora.com
Subject: Re: [PATCH v2 0/2] media: staging: rkisp1: allow simultaneous
 streaming from multiple capture devices

On Mon, Mar 16, 2020 at 06:00:42PM -0300, Helen Koike wrote:
> Hi,
> 
> This series adds support for simultaneous streaming from both capture
> devices (rkisp1_selfpath and rkisp1_mainpath).
> 
> It depends on the following series for multistream to work properly, but
> it doesn't mean it can't be merged before:
> 
> 	"media: add v4l2_pipeline_stream_{enable,disable} helpers"
> 	https://patchwork.linuxtv.org/cover/62233/
> 
> And it is also available at:
> 
> 	https://gitlab.collabora.com/koike/linux/tree/rockchip/isp/multistream
> 
> Patch 1/2 fixes return error handling from pm functions, which was
> preventing the second stream to start.
> 
> Patch 2/2 serializes start/stop streaming calls, since they both
> and modify shared variables.
> 
> Changes in v2:
> - Rebased on media/master
> - Removed the following patch from the series:
> "media: staging: rkisp1: do not call s_stream if the entity is still in use"
> It was replaced by "media: add v4l2_pipeline_stream_{enable,disable} helpers"
> https://patchwork.linuxtv.org/cover/62233/
> 

For the whole series:

Reviewed-by: Tomasz Figa <tfiga@...omium.org>

Best regards,
Tomasz