Re: [PATCH] Initial driver for the MAX31785 intelligent fan controller

From: Joel Stanley <joel@jms.id.au>
To: Matt Spinler <mspinler@linux.vnet.ibm.com>
Cc: Timothy Pearson <tpearson@raptorengineering.com>,
	 OpenBMC Maillist <openbmc@lists.ozlabs.org>
Subject: Re: [PATCH] Initial driver for the MAX31785 intelligent fan controller
Date: Mon, 12 Dec 2016 10:36:41 +1100	[thread overview]
Message-ID: <CACPK8XfZ=yHgx75xBgy8kyQqxpCLwW406hyKvQYfiBpnC6Hvqw@mail.gmail.com> (raw)
In-Reply-To: <de14e2a8-06f3-19f9-c783-3d05e6856993@linux.vnet.ibm.com>

Hi Matt,

On Sat, Dec 10, 2016 at 2:55 AM, Matt Spinler
<mspinler@linux.vnet.ibm.com> wrote:
> Hi,
>
> We're getting closer to needing the hwmon driver for this.  Has anyone heard
> an outlook?

It's convention on mailing lists to bottom post. Particularly so when
others in the thread are using this style.

I have not heard any news about this driver.

Have you?

Cheers,

Joel

>
>
> On 9/23/2016 10:04 AM, Timothy Pearson wrote:
>>
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> On 09/23/2016 02:41 AM, Joel Stanley wrote:
>>>
>>> Hello Timothy,
>>>
>>> On Tue, Sep 20, 2016 at 11:22 AM, Timothy Pearson
>>> <tpearson@raptorengineering.com> wrote:
>>>>
>>>> Add a basic driver for the MAX31785, focusing on the fan control
>>>> features but ignoring the temperature and voltage monitoring
>>>> features of the device.
>>>>
>>>> This driver supports all fan control modes and tachometer / PWM
>>>> readback where applicable.
>>>> This series adds a new hwmon driver for the MAX31875, which is
>>>> used for fan control on Firestone.
>>>>
>>>> This patch is a holdover until a PMBus driver is written at some
>>>> point.  Upstream has stated they will not accept unless a PMBus
>>>> driver is used for this particular device.
>>>
>>> I'm happy to carry this in our tree for now.
>>>
>>> Do you have a timeline for rewriting and submitting upstream?
>>
>> At this time upstream needs some significant work; the PMBus core driver
>> as it currently exists does not support the required functions.
>> However, the hwmon maintainer (Gunter Roeck) has said he will work on
>> extending the PMBus driver and might even get something working for this
>> chip with that core driver, so there is definitely progress being made.
>>   I wouldn't expect anything upstream until at least kernel 4.9 or later
>> though.
>>
>> - -- Timothy Pearson
>> Raptor Engineering
>> +1 (415) 727-8645 (direct line)
>> +1 (512) 690-0200 (switchboard)
>> https://www.raptorengineering.com
>> -----BEGIN PGP SIGNATURE-----
>> Version: GnuPG v1.4.11 (GNU/Linux)
>> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
>>
>> iQEcBAEBAgAGBQJX5USGAAoJEK+E3vEXDOFbuZsIALMWMVl0LK/zGDpD3qVL5tib
>> M0t9QYXhMfYSX1CbP47lRTTDg779f6YadV4QsVslqVt3pVCVm+cA0q2SuyDGCVJ5
>> KCfVlocQ8KYjZXUieY/Ry3YLvU3oraCIAy5VLpeuPAZMU8RwA8gctElcmeWQNneV
>> nywY1wJPe1YjBrIZefVvkF5gJQ/Mzoo498Aeyo8Mi98EB+XSStCp5w9XKF7I7Hja
>> BL5FZbO13ghvfSoDUPv51uKS4r843Z7SL7yzPH1W4OH+beB8nKXyj5ajo2C21Z2V
>> ciyuWQQdQMw/rh5I7ejNvAczEUsYV7h8zXc4dMxoZQYmgcagP1P7uahFL/0skZo=
>> =+1Oo
>> -----END PGP SIGNATURE-----
>> _______________________________________________
>> openbmc mailing list
>> openbmc@lists.ozlabs.org
>> https://lists.ozlabs.org/listinfo/openbmc
>
>