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Re: [PATCH v7 0/6] gpio: Add GPIO Aggregator
From: |
Andy Shevchenko |
Subject: |
Re: [PATCH v7 0/6] gpio: Add GPIO Aggregator |
Date: |
Wed, 20 May 2020 15:40:02 +0300 |
On Wed, May 20, 2020 at 3:38 PM Geert Uytterhoeven <address@hidden> wrote:
> On Wed, May 20, 2020 at 2:14 PM Andy Shevchenko
> <address@hidden> wrote:
> > On Mon, May 11, 2020 at 04:52:51PM +0200, Geert Uytterhoeven wrote:
...
> > Sorry for late reply, recently noticed this nice idea.
> > The comment I have is, please, can we reuse bitmap parse algorithm and
> > syntax?
> > We have too many different formats and parsers in the kernel and bitmap's
> > one
> > seems suitable here.
>
> Thank you, I wasn't aware of that.
>
> Which one do you mean? The documentation seems to be confusing,
> and incomplete.
> My first guess was bitmap_parse(), but that one assumes hex values?
> And given it processes the unsigned long bitmap in u32 chunks, I guess
> it doesn't work as expected on big-endian 64-bit?
>
> bitmap_parselist() looks more suitable, and the format seems to be
> compatible with what's currently used, so it won't change ABI.
> Is that the one you propose?
Yes, sorry for the confusion.
> > (Despite other small clean ups, like strstrip() use)
>
> Aka strim()? There are too many of them, to know all of them by heart ;-)
The difference between them is __must_check flag. But yes.
--
With Best Regards,
Andy Shevchenko
- [PATCH v7 3/6] gpiolib: Add support for GPIO lookup by line name, (continued)
- [PATCH v7 3/6] gpiolib: Add support for GPIO lookup by line name, Geert Uytterhoeven, 2020/05/11
- [PATCH v7 6/6] MAINTAINERS: Add GPIO Aggregator section, Geert Uytterhoeven, 2020/05/11
- [PATCH v7 4/6] gpio: Add GPIO Aggregator, Geert Uytterhoeven, 2020/05/11
- [PATCH v7 2/6] mfd: sm501: Use GPIO_LOOKUP_IDX() helper macro, Geert Uytterhoeven, 2020/05/11
- [PATCH v7 5/6] docs: gpio: Add GPIO Aggregator documentation, Geert Uytterhoeven, 2020/05/11
- Re: [PATCH v7 0/6] gpio: Add GPIO Aggregator, Linus Walleij, 2020/05/18
- Re: [PATCH v7 0/6] gpio: Add GPIO Aggregator, Andy Shevchenko, 2020/05/20