linux-kernel - Re: [PATCH 5/5] gpio: pca953x: Add support for PCAL6534 and compatible

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Date:   Wed, 31 Aug 2022 17:30:38 +0100
From:   Martyn Welch <martyn.welch@...labora.com>
To:     Bartosz Golaszewski <brgl@...ev.pl>
Cc:     Linus Walleij <linus.walleij@...aro.org>, kernel@...labora.com,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 5/5] gpio: pca953x: Add support for PCAL6534 and
 compatible

On Wed, 2022-08-31 at 13:57 +0200, Bartosz Golaszewski wrote:
> On Mon, Aug 29, 2022 at 3:39 PM Martyn Welch
> <martyn.welch@...labora.com> wrote:
> > 
> > Add support for the NXP PCAL6534 and Diodes Inc. PI4IOE5V6534Q.
> > These
> > devices, which have identical register layouts and features, are
> > broadly a
> > 34-bit version of the PCAL6524.
> > 
> > However, whilst the registers are broadly what you'd expect for a
> > 34-bit
> > version of the PCAL6524, the spacing of the registers has been
> > compacted. This has the unfortunate effect of breaking the bit
> > shift
> > based mechanism that is employed to work out register locations
> > used by
> > the other chips supported by this driver, resulting in special
> > handling
> > needing to be introduced in pca953x_recalc_addr() and
> > pca953x_check_register().
> > 
> > Datasheet: https://www.nxp.com/docs/en/data-sheet/PCAL6534.pdf
> > Datasheet:
> > https://www.diodes.com/assets/Datasheets/PI4IOE5V6534Q.pdf
> > Signed-off-by: Martyn Welch <martyn.welch@...labora.com>
> > ---
> 
> Is this series complete? I don't have patch 1/5 in my inbox and
> neither does patchwork.
> 

I used get_maintainers to generate the recipients, it's a patch for the
binding documentation relating to the driver so didn't get sent to the
same lists:

https://lore.kernel.org/lkml/20220829133923.1114555-3-martyn.welch@collabora.com/T/

Martyn

> Bart