linux-kernel - Re: [PATCH v3 4/6] bus: Add Baikal-T1 AXI-bus driver

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Date:   Thu, 28 May 2020 14:44:32 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Serge Semin <Sergey.Semin@...kalelectronics.ru>
Cc:     Serge Semin <fancer.lancer@...il.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Paul Burton <paulburton@...nel.org>,
        Olof Johansson <olof@...om.net>,
        Rob Herring <robh+dt@...nel.org>,
        "linux-mips@...r.kernel.org" <linux-mips@...r.kernel.org>,
        "soc@...nel.org" <soc@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 4/6] bus: Add Baikal-T1 AXI-bus driver

On Thu, May 28, 2020 at 2:27 PM Serge Semin
<Sergey.Semin@...kalelectronics.ru> wrote:
>
> On Thu, May 28, 2020 at 02:14:58PM +0200, Arnd Bergmann wrote:
> > On Thu, May 28, 2020 at 12:01 AM Andy Shevchenko
> > <andy.shevchenko@...il.com> wrote:
> > > On Tuesday, May 26, 2020, Serge Semin <Sergey.Semin@...kalelectronics.ru> wrote:
> > >>
> > >> AXI3-bus is the main communication bus connecting all high-speed
> > >> peripheral IP-cores with RAM controller and MIPS P5600 cores on Baikal-T1
> > >> SoC. Bus traffic arbitration is done by means of DW AMBA 3 AXI
> > >> Interconnect (so called AXI Main Interconnect) routing IO requests from
> > >> one SoC block to another. This driver provides a way to detect any bus
> > >> protocol errors and device not responding situations by means of an
> > >> embedded on top of the interconnect errors handler block (EHB). AXI
> > >> Interconnect QoS arbitration tuning is currently unsupported.
> > >> The bus doesn't provide a way to detect the interconnected devices,
> > >> so they are supposed to be statically defined like by means of the
> > >> simple-bus sub-nodes.
> > >
> > >
> > >
> > > Few comments in case if you need a new version. Main point is about sysfs_streq().
> >
> > I've applied the patch now and folded in fixes for the build warnings and
> > errors pointed out by the test robot, but I did not include the changes you
> > suggested.
>
> Are you saying that the build-errors and warnings have already been fixed by
> you, right? If so could you please give me a link to the repo with those
> commits, so I'd work with the up-to-date code?

I've pushed it to https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git/,

I made a local "baikal/drivers" branch with just your patches, updated
to address the build reports. This is merged into the "arm/drivers"
branch that contains all driver specific changes across all SoCs and
this is what I'll send to Linus next week.

There is also the "for-next" branch that contains all arm/* branches,
and this is what gets pulled into linux-next, so your patches will show
up there tomorrow as well.

You can normally check the status of any submission to soc@...nel.org
at https://patchwork.kernel.org/project/linux-soc/list/, but it seems that
has not picked up the status yet, and I'll have to update it manually.

       Arnd