linux-kernel - Re: [PATCH v3] gpio: add GPIO support for F71882FG and F71889F

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Message-ID: <CACRpkdZN8tV0pazo9jbc+nMSt0ye4qbYJyfBGMPcNoekfeqP9g@mail.gmail.com>
Date:	Thu, 29 Aug 2013 19:32:10 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	Matthew Garrett <mjg59@...f.ucam.org>,
	Simon Guinot <simon.guinot@...uanux.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Grant Likely <grant.likely@...retlab.ca>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...ux.intel.com>
Subject: Re: [PATCH v3] gpio: add GPIO support for F71882FG and F71889F

On Thu, Aug 29, 2013 at 6:08 PM, Guenter Roeck <linux@...ck-us.net> wrote:
> On Thu, Aug 29, 2013 at 04:37:38PM +0100, Matthew Garrett wrote:

>> The majority of board vendors clearly don't expect the OS to drive the
>> hwmon chips - they're there for the benefit of ACPI and SMM code. That
>> doesn't mean that there's no benefit in having drivers for them, just
>> that the board vendors don't care about that use case and so won't do
>> anything to make it easier.
>>
> Actually, not entirely true. Some vendors even provide software running on
> Windows to access those chips (including access to fans controlled through
> GPIO pins) and to provide information to the user. It might be more accurate
> to say that some board vendors don't care about Linux (or about providing
> access through ACPI, for that matter).
>
> Question here is what the Linux kernel community's policy is going to be
> to handle such cases. Pragmatic or dogmatic ?

The GPIO maintainer is going to be pragmatic, because it's cool to
be able to control HWMON things on one's workstation.

The kernel is a funnier place with these drivers, so I'm applying the
patch.

Yours,
Linus Walleij
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