[PATCH] Initial driver for the MAX31785 intelligent fan controller

[Matt Spinler]

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:
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> 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
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