linux-kernel - Re: [PATCH v2 2/2] drm/bridge: anx7688: Add anx7688 bridge driver support

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Message-ID: <20200306120318.oq575imqjh7uolss@core.my.home>
Date:   Fri, 6 Mar 2020 13:03:18 +0100
From:   Ondřej Jirman <megous@...ous.com>
To:     Enric Balletbo i Serra <enric.balletbo@...labora.com>
Cc:     Vasily Khoruzhick <anarsoul@...il.com>,
        Icenowy Zheng <icenowy@...c.io>,
        Enric Balletbo Serra <eballetbo@...il.com>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Nicolas Boichat <drinkcat@...omium.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        David Airlie <airlied@...ux.ie>, Torsten Duwe <duwe@...e.de>,
        Jonas Karlman <jonas@...boo.se>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Maxime Ripard <maxime@...no.tech>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Collabora Kernel ML <kernel@...labora.com>
Subject: Re: [PATCH v2 2/2] drm/bridge: anx7688: Add anx7688 bridge driver
 support

On Fri, Mar 06, 2020 at 09:46:51AM +0100, Enric Balletbo i Serra wrote:
> Hi Ondrej,
> 
> On 5/3/20 20:35, Ondřej Jirman wrote:
> > Hi,
> > 
> > On Thu, Mar 05, 2020 at 10:29:33AM -0800, Vasily Khoruzhick wrote:
> >> On Thu, Mar 5, 2020 at 7:28 AM Enric Balletbo i Serra
> >> <enric.balletbo@...labora.com> wrote:
> >>>
> >>> Hi Vasily,
> >>
> >> CC: Icenowy and Ondrej
> >>>
> >>> Would you mind to check which firmware version is running the anx7688 in
> >>> PinePhone, I think should be easy to check with i2c-tools.
> >>
> >> Icenowy, Ondrej, can you guys please check anx7688 firmware version?
> > 
> > i2cget 0 0x28 0x00 w
> > 0xaaaa
> > 
> > i2cget 0 0x28 0x02 w
> > 0x7688
> > 
> > i2cget 0 0x28 0x80 w
> > 0x0000
> > 
> 
> Can you check the value for 0x81 too?

'w' read checks both values at once, as you can see above.

regards,
	o.

> Thanks,
>  Enric
> 
> 
> > regards,
> > 	o.
> > 
> >>> Thanks in advance,
> >>>  Enric
> >>>
> >>> [snip]