linux-kernel - Re: [PATCH v2] ARM: dts: aspeed: tyan-s7106: Update nct7802 config

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Date:   Fri, 5 Nov 2021 04:03:15 +0000
From:   Joel Stanley <joel@....id.au>
To:     Oskar Senft <osk@...gle.com>
Cc:     Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linux-aspeed <linux-aspeed@...ts.ozlabs.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Andrew Jeffery <andrew@...id.au>
Subject: Re: [PATCH v2] ARM: dts: aspeed: tyan-s7106: Update nct7802 config

On Fri, 5 Nov 2021 at 03:29, Oskar Senft <osk@...gle.com> wrote:
>
> Hi Joel
>
> > I test the kernels independently of yocto; I recommend doing that with
> > a cross compiler when submitting patches upstream. My flow looks like
> > this:
> > [...]
> > A few notes:
> >  - I use the cross compiler from my distro. Debian unstable has GCC
> > 11.2.0, which is the same as openbmc. You can use the compiler from
> > your openbmc build tree if you aren't able to install a modern
> > compiler
> I couldn't figure out how to use the compiler from the OpenBMC tree.
> The biggest issue is that it has "openbmc" in its name and Linux build
> was getting confused by it. I gave up on that approach and found how
> to install the right cross compiler in our environment. That worked
> well. Thanks for the hints!

Cool. For reference, you should be able to do this:

CROSS_COMPILE="openbmc/build/p10bmc/tmp/sysroots-components/x86_64/gcc-cross-arm/usr/bin/arm-openbmc-linux-gnueabi/arm-openbmc-linux-gnueabi-"

>
> >  - building with -s means warnings stand out
> Excellent idea, thank you!
>
> >  - if you're working on device trees and want to ensure your binary is
> > being built each time, omit the -s and build the 'dtbs' target
> Ack.
>
> I'll send a PATCH v3 now.
>
> Oskar.