linux-kernel - Re: [PATCH v10 0/2] Initial Allwinner V3s CSI Support

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Message-Id: <20180910111452.052358a7c5cb789473b8a571@magewell.com>
Date:   Mon, 10 Sep 2018 11:14:52 +0800
From:   Yong <yong.deng@...ewell.com>
To:     Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     Chen-Yu Tsai <wens@...e.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        Arnd Bergmann <arnd@...db.de>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Ramesh Shanmugasundaram <ramesh.shanmugasundaram@...renesas.com>,
        Jacob Chen <jacob-chen@...wrt.com>,
        Yannick Fertre <yannick.fertre@...com>,
        Thierry Reding <treding@...dia.com>,
        Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        Todor Tomov <todor.tomov@...aro.org>,
        Linux Media Mailing List <linux-media@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-sunxi <linux-sunxi@...glegroups.com>
Subject: Re: [PATCH v10 0/2] Initial Allwinner V3s CSI Support

Hi Maxime,

On Fri, 7 Sep 2018 15:23:11 +0200
Maxime Ripard <maxime.ripard@...tlin.com> wrote:

> Hi Yong,
> 
> On Wed, Jun 20, 2018 at 12:45:03PM +0800, Chen-Yu Tsai wrote:
> > On Wed, May 30, 2018 at 5:19 PM, Sakari Ailus
> > <sakari.ailus@...ux.intel.com> wrote:
> > > On Tue, May 29, 2018 at 11:57:57AM +0200, Maxime Ripard wrote:
> > >> On Thu, May 17, 2018 at 11:02:24AM +0200, Maxime Ripard wrote:
> > >> > On Fri, May 04, 2018 at 02:44:08PM +0800, Yong Deng wrote:
> > >> > > This patchset add initial support for Allwinner V3s CSI.
> > >> > >
> > >> > > Allwinner V3s SoC features two CSI module. CSI0 is used for MIPI CSI-2
> > >> > > interface and CSI1 is used for parallel interface. This is not
> > >> > > documented in datasheet but by test and guess.
> > >> > >
> > >> > > This patchset implement a v4l2 framework driver and add a binding
> > >> > > documentation for it.
> > >> > >
> > >> > > Currently, the driver only support the parallel interface. And has been
> > >> > > tested with a BT1120 signal which generating from FPGA. The following
> > >> > > fetures are not support with this patchset:
> > >> > >   - ISP
> > >> > >   - MIPI-CSI2
> > >> > >   - Master clock for camera sensor
> > >> > >   - Power regulator for the front end IC
> > >> >
> > >> > I tested it on my H3 with a parallel camera, and it still works. Thanks!
> > >> >
> > >> > Hans, Sakari, any chance this might land in 4.18?
> > >>
> > >> Ping?
> > >
> > > I'll try to look into this soonish but it seems to be too late for 4.18.
> > > Sorry about that.
> > 
> > Can we get this into 4.19?
> 
> Did you have some time to make the changes Sakari asked for? That
> would be great to have it in 4.20.

Sorry. I've been busy lately.
And I am still thinking about how to deal with it. I have some ideas.
But I think all of them are not good enough. I plan to study the 
relevant knowledge and try to find a little better solution.

Thanks,
Yong