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

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Message-ID: <522fc986-50b3-e4ff-9dc3-93921733d362@collabora.com>
Date:   Fri, 6 Mar 2020 13:18:59 +0100
From:   Enric Balletbo i Serra <enric.balletbo@...labora.com>
To:     Ondřej Jirman <megous@...ous.com>,
        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 6/3/20 13:03, Ondřej Jirman wrote:
> 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.
> 

Oh right, sorry. The thing is that firmware version is at 0x2c, not 0x28, so
we're interested on see register 0x80 and 0x81 for 0x2c address.

Thanks,
 Enric

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