linux-kernel - Re: [PATCH v6 00/10] serial/gpio: exar: Fixes and support for IOT2000

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Message-ID: <CACRpkdZ1atVQLuDio6PVk4Xg+DUBDt2F2OH+2UjVkue8rKNbcA@mail.gmail.com>
Date:   Thu, 29 Jun 2017 11:51:08 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Jan Kiszka <jan.kiszka@...mens.com>
Cc:     Alexandre Courbot <gnurou@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        Sudip Mukherjee <sudip.mukherjee@...ethink.co.uk>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Sascha Weisenberger <sascha.weisenberger@...mens.com>
Subject: Re: [PATCH v6 00/10] serial/gpio: exar: Fixes and support for IOT2000

On Fri, Jun 23, 2017 at 10:09 PM, Jan Kiszka <jan.kiszka@...mens.com> wrote:
> On 2017-06-21 08:29, Jan Kiszka wrote:
>> On 2017-06-20 13:38, Linus Walleij wrote:
>>> On Tue, Jun 20, 2017 at 10:54 AM, Jan Kiszka <jan.kiszka@...mens.com> wrote:
>>>> On 2017-06-20 10:19, Linus Walleij wrote:
>>>>> On Fri, Jun 9, 2017 at 8:33 PM, Jan Kiszka <jan.kiszka@...mens.com> wrote:
>>>>>
>>>>>> This makes the gpio-exar driver usable, which was prevented by a number
>>>>>> of fatal bugs, and adds support for the SIMATIC IOT2040 to the 8250-exar
>>>>>> driver and, indirectly, to gpio-exar as well. It's a cross-subsystem
>>>>>> series, so I'm also cross-posting to the serial and gpio lists.
>>>>>>
>>>>>> Changes in v6:
>>>>>
>>>>> I merged some of the patches, that applied. Let's see if they survive
>>>>> in linux-next, else I guess we need to fix this in the -rcs or for the next
>>>>> kernel cycle.
>>>>
>>>> Weird that things did not apply. I just did a cherry-pick for all those
>>>> 10 patches on top of 5c996b7eb52c, and that went smoothly. Please let me
>>>> know which baseline is needed, and I will rebase.
>>>
>>> This was on the "devel" branch of my GPIO tree:
>>> https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git/log/?h=devel
>>
>> Again, all (missing) patches applied absolutely cleanly for me, see
>>
>> http://git.kiszka.org/?p=linux.git;a=shortlog;h=refs/heads/queues/gpio-iot2000
>
> I've rebased over devel and noticed along this that you will have to
> include "serial: uapi: Add support for bus termination" from Greg's
> tty-next for the last patch to avoid breaking the build. Result pushed to
>
> http://git.kiszka.org/?p=linux.git;a=shortlog;h=refs/heads/queues/gpio-iot2000
>
> If you want me to resend anything, just let me know. Would be great to
> have the remaining pieces lined up in time for the next merge window.

I could just pull it in, but then I want a clear indication that Greg and
say Andy are happy with this.

The serial patches are missing Gregs explicit ACK and the platform
patch could use Andy's ACK. The last patch adding the
IOT2040 is so obviously out of my GPIO territory that I want
Greg 100% aligned with this.

I am sorry that it is troublesome when things cross subsystem
boundaries, I already stretched it a bit with the things I queued
up because it annoys me too, but this is the process we have :/

Yours,
Linus Walleij