Re: [PATCH v1 2/3] pinctrl: baytrail: Debounce register is one per community

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Thu, Jan 26, 2017 at 6:24 PM, Andy Shevchenko
<andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:

> Debounce value is set globally per community. Otherwise user will easily
> get a kernel crash when they start using the feature:
>
> BUG: unable to handle kernel paging request at ffffc900003be000
> IP: byt_gpio_dbg_show+0xa9/0x430
>
> Make it clear in byt_gpio_reg().
>
> Note that this fix just prevents kernel to crash, but doesn't make any
> difference to the existing logic. It means the last caller will win the
> trade and debounce value will be configured accordingly. The actual
> logic fix needs to be thought about and it's not as important as crash
> fix. That's why the latter goes separately and right now.
>
> Fixes: 658b476c742f ("pinctrl: baytrail: Add debounce configuration")
> Cc: Cristina Ciocan <cristina.ciocan@xxxxxxxxx>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>

Patch applied for fixes.

Yours,
Linus Walleij
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