linux-kernel - Re: [PATCH v2 30/66] media: sun6i-csi: Add bridge v4l2 subdev with port management

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Message-ID: <20220211164400.ccp4j2puryhurvzd@houat>
Date:   Fri, 11 Feb 2022 17:44:00 +0100
From:   Maxime Ripard <maxime@...no.tech>
To:     Paul Kocialkowski <paul.kocialkowski@...tlin.com>
Cc:     linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org,
        linux-clk@...r.kernel.org, linux-staging@...ts.linux.dev,
        Yong Deng <yong.deng@...ewell.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Helen Koike <helen.koike@...labora.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v2 30/66] media: sun6i-csi: Add bridge v4l2 subdev with
 port management

On Fri, Feb 11, 2022 at 04:43:51PM +0100, Paul Kocialkowski wrote:
> Hi,
> 
> On Wed 09 Feb 22, 10:24, Maxime Ripard wrote:
> > On Sat, Feb 05, 2022 at 07:53:53PM +0100, Paul Kocialkowski wrote:
> > > Introduce a bridge v4l2 subdev to prepare for separation between the
> > > processing part (bridge) and the dma engine, which is required to
> > > properly support ths isp workflow later on.
> > > 
> > > Currently the bridge just manages fwnode mapping to media pads,
> > > using an async notifier (which was previously in the main code).
> > > The s_stream video op just forwards to the connected v4l2 subdev
> > > (sensor or MIPI CSI-2 bridge).
> > > 
> > > The video capture device is now registered after the bridge and
> > > attaches to it with a media link.
> > > 
> > > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>
> > 
> > There's a bunch of checkpatch --strict warnings that need to be fixed
> 
> Yes so it turns out these are adaptations to the existing video code
> which has these warnings already merged. They are cleaned up later on
> in a dedicated commit, but since it's not the topic of this change
> (which is a logic change) I kept the code as it is.
> 
> What do you think?

+       async_subdev = v4l2_async_nf_add_fwnode_remote(notifier, handle,
+               struct v4l2_async_subdev);

CHECK: Alignment should match open parenthesis

This one at least is introduced by your patch

Maxime

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