Messages in this thread | | | From | Andy Shevchenko <> | Date | Wed, 3 Feb 2021 12:12:52 +0200 | Subject | Re: [PATCH] gpio: pca953x: add support for open drain pins on PCAL6524 |
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On Tue, Feb 2, 2021 at 1:45 PM Bartosz Golaszewski <bgolaszewski@baylibre.com> wrote: > On Thu, Jan 28, 2021 at 4:36 PM Alban Bedel <alban.bedel@aerq.com> wrote: > > > > From a quick glance at various datasheet the PCAL6524 seems to be the
Oh, even more typos
datasheets
> > only chip in this familly that support setting the drive mode of
supports
> > single pins. Other chips either don't support it at all, or can only > > set the drive mode of whole banks, which doesn't map to the GPIO API. > > > > Add a new flag, PCAL6524, to mark chips that have the extra registers > > needed for this feature. Then mark the needed register banks as > > readable and writable, here we don't set OUT_CONF as writable, > > although it is, as we only need to read it. Finally add a function > > that configure the OUT_INDCONF register when the GPIO API set the > > drive mode of the pins.
...
> Maybe call it PCAL6524_TYPE for consistency with the ones below?
In case you continue modifying this driver, I agree with Bart on PCAL6524_TYPE along with new OF_6524() macro.
-- With Best Regards, Andy Shevchenko
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