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From:   Jernej =?utf-8?B?xaBrcmFiZWM=?= <jernej.skrabec@gmail.com>
To:     linux-media@vger.kernel.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev,
        linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev,
        Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Cc:     Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzk+dt@kernel.org>,
        Chen-Yu Tsai <wens@csie.org>,
        Samuel Holland <samuel@sholland.org>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
        Hans Verkuil <hans.verkuil@cisco.com>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Maxime Ripard <mripard@kernel.org>,
        Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: Re: [PATCH v8 6/6] media: sun6i-csi: Add support for hooking to the isp devices
Date:   Sun, 06 Nov 2022 10:13:11 +0100
Message-ID: <2085642.OBFZWjSADL@jernej-laptop>
In-Reply-To: <20221103163717.246217-7-paul.kocialkowski@bootlin.com>
References: <20221103163717.246217-1-paul.kocialkowski@bootlin.com> <20221103163717.246217-7-paul.kocialkowski@bootlin.com>
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Dne =C4=8Detrtek, 03. november 2022 ob 17:37:17 CET je Paul Kocialkowski=20
napisal(a):
> In order to use the isp and csi together, both devices need to be
> parented to the same v4l2 and media devices. We use the isp as
> top-level device and let the csi code hook to its v4l2 and media
> devices when async subdev registration takes place.
>=20
> As a result v4l2/media device setup is only called when the ISP
> is missing and the capture device is registered after the devices
> are hooked. The bridge subdev and its notifier are registered
> without any device when the ISP is available. Top-level pointers
> for the devices are introduced to either redirect to the hooked ones
> (isp available) or the registered ones (isp missing).
>=20
> Also keep track of whether the capture node was setup or not to
> avoid cleaning up resources when it wasn't.
>=20
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>

Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>

Best regards,
Jernej