[PATCH] Initial driver for the MAX31785 intelligent fan controller

Matt Spinler mspinler at linux.vnet.ibm.com
Sat Dec 10 02:55:55 AEDT 2016


Hi,

We're getting closer to needing the hwmon driver for this.  Has anyone 
heard an outlook?

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 at 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 at lists.ozlabs.org
> https://lists.ozlabs.org/listinfo/openbmc



More information about the openbmc mailing list