linux-kernel - Re: [PATCH v5 0/7] gpio: exar: refactor the driver

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Date:   Mon, 23 Nov 2020 14:33:03 +0100
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Jan Kiszka <jan.kiszka@...mens.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        David Laight <David.Laight@...lab.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: Re: [PATCH v5 0/7] gpio: exar: refactor the driver

On Mon, Nov 23, 2020 at 2:00 PM Jan Kiszka <jan.kiszka@...mens.com> wrote:
>
> On 23.11.20 13:12, Bartosz Golaszewski wrote:
> > Thanks!On Mon, Nov 23, 2020 at 1:03 PM Jan Kiszka
> > <jan.kiszka@...mens.com> wrote:
> >>
> >> On 23.11.20 12:38, Bartosz Golaszewski wrote:
> >>> On Mon, Nov 16, 2020 at 11:42 AM Bartosz Golaszewski <brgl@...ev.pl> wrote:
> >>>>
> >>>> From: Bartosz Golaszewski <bgolaszewski@...libre.com>
> >>>>
> >>>> I just wanted to convert the driver to using simpler IDA API but ended up
> >>>> quickly converting it to using regmap. Unfortunately I don't have the HW
> >>>> to test it so marking the patches that introduce functional change as RFT
> >>>> and Cc'ing the original author.
> >>>>
> >>>
> >>> Hi Jan!
> >>>
> >>> Could you give this last version a final spin before I merge it?
> >>>
> >>
> >> [   14.250117] exar_serial 0000:02:00.0: enabling device (0000 -> 0002)
> >> [   14.336622] 0000:02:00.0: ttyS2 at MMIO 0x90000000 (irq = 44, base_baud = 7812500) is a XR17V35X
> >> [   14.391588] 0000:02:00.0: ttyS3 at MMIO 0x90000400 (irq = 44, base_baud = 7812500) is a XR17V35X
> >> [   19.250510] gpio_exar: probe of gpio_exar.1.auto failed with error -22
> >>
> >> That's "new"...
> >>
> >
> > And if you change reg_bits from 11 to 16?
> >
>
> 16 works. Didn't we have that already?
>
> Jan

Yes we have, Andy suggested 11 is fine because it fits the highest
address we need to access but it seems regmap doesn't like this value.
Ok so I'll change it when applying, is that fine with you?

Bart