linux-kernel - Re: [PATCH v4 3/5] media: sunxi: Add A10 CSI driver

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Message-ID: <20190403093758.z2wlnx5ck6ck36ib@paasikivi.fi.intel.com>
Date:   Wed, 3 Apr 2019 12:37:58 +0300
From:   Sakari Ailus <sakari.ailus@...ux.intel.com>
To:     Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     Hans Verkuil <hans.verkuil@...co.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        linux-media@...r.kernel.org, Chen-Yu Tsai <wens@...e.org>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>
Subject: Re: [PATCH v4 3/5] media: sunxi: Add A10 CSI driver

On Wed, Apr 03, 2019 at 11:26:55AM +0200, Maxime Ripard wrote:
> Hi Sakari,
> 
> On Wed, Apr 03, 2019 at 12:12:21PM +0300, Sakari Ailus wrote:
> > Thanks for the update and my apologies for the late review.
> >
> > On Tue, Mar 19, 2019 at 04:55:46PM +0100, Maxime Ripard wrote:
> > > The older CSI drivers have camera capture interface different from the one
> > > in the newer ones.
> > >
> > > This IP is pretty simple. Some variants (one controller out of two
> > > instances on some SoCs) have an ISP embedded, but there's no code that make
> > > use of it, so we ignored that part for now.
> > >
> > > Signed-off-by: Maxime Ripard <maxime.ripard@...tlin.com>
> >
> > Could you add a sub-device for the CSI-2 receiver, please?
> >
> > See e.g. drivers/media/pci/intel/ipu3/ipu3-cio2.c for an example.
> 
> It's confusing, I know, but this isn't a MIPI-CSI receiver. The IP is
> called CSI, but it's only capable of handling parallel and BT656.

Right, for the parallel (or Bt.656) receiver then.

-- 
Sakari Ailus
sakari.ailus@...ux.intel.com