linux-kernel - Re: [PATCH] pinctrl: intel: Do pin translation in other GPIO operations as well

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Date:   Thu, 20 Sep 2018 08:26:25 -0700
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        rajatja@...gle.com, casey.g.bowman@...el.com,
        matthew.s.atwood@...el.com,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] pinctrl: intel: Do pin translation in other GPIO
 operations as well

On Tue, Sep 18, 2018 at 8:36 AM Mika Westerberg
<mika.westerberg@...ux.intel.com> wrote:

> For some reason I thought GPIOLIB handles translation from GPIO ranges
> to pinctrl pins but it turns out not to be the case. This means that
> when GPIOs operations are performed for a pin controller having a custom
> GPIO base such as Cannon Lake and Ice Lake incorrect pin number gets
> used internally.
>
> Fix this in the same way we did for lock/unlock IRQ operations and
> translate the GPIO number to pin before using it.
>
> Fixes: a60eac3239f0 ("pinctrl: intel: Allow custom GPIO base for pad groups")
> Reported-by: Rajat Jain <rajatja@...gle.com>
> Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>

I applied this for fixes.

However when merging with devel I get some a merge conflict,
probably due to some cleanups from Andy.

I tried to fix it up (just use your code) but please check the
result.

Yours,
Linus Walleij