Re: [PATCH] pinctrl: Add generic pinctrl-simple driver that supports omap2+ padconf

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

* Stephen Warren <swarren@xxxxxxxxxxxxx> [120514 11:42]:
> On 05/12/2012 05:49 PM, Linus Walleij wrote:
> > On Thu, May 10, 2012 at 7:05 PM, Stephen Warren <swarren@xxxxxxxxxxxxx> wrote:
> > 
> >> Also, were you intending pinctrl-simple to actually be the GPIO
> >> controller itself? That'd be another case that one might consider fairly
> >> simple, but then extends to being gpio-simple as well as pinctrl-simple...
> > 
> > We have some pinctrl drivers implementing gpiolib too already,
> > and it's unavoidable I think, as some recent discussion about
> > matcing struct gpio_chip and pinctrl GPIO ranges shows.
> I strongly believe we should only do this when the exact same HW module
> is both pinctrl and GPIO.
> When there are separate HW modules, we should have separate drivers. The
> fact that the two drivers need to co-ordinate with each-other isn't a
> good argument to make them one driver.
> And irrespective of how the drivers are structured, if there are two HW
> modules, we really need two separate nodes in DT to describe them, since
> the SW architecture (1 vs. 2 drivers) shouldn't influence the DT
> representation unduly.

> > Maybe "-simple" isn't such a good name for this thing. Noone thinks
> > any kind of pin control is simple in any sense of the word anyway :-D
> > 
> > Tony, would pinctrl-dt-only.c be a better name perhaps?
> That might be OK for the filename, but it doesn't seem like a useful
> change for the DT compatible value.

Yeah let's see if we can come up with some better name.



linux-arm-kernel mailing list

[Linux ARM (vger)]     [Linux ARM MSM]     [Linux Omap]     [Linux Arm]     [Linux Tegra]     [Fedora ARM]     [eCos]     [Linux Fastboot]     [Gcc Help]     [Git]     [DCCP]     [IETF Announce]     [Security]     [PDAs]     [Linux]     [Linux MIPS]     [Yosemite Campsites]     [Photos]

Add to Google Follow linuxarm on Twitter