linux-kernel - Re: [GIT PULL 1/3] bcm2835-dt-next-2019-01-29

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Message-ID: <4ef803bf-2596-845b-1ebe-942478e94325@i2se.com>
Date:   Fri, 1 Feb 2019 12:15:57 +0100
From:   Stefan Wahren <stefan.wahren@...e.com>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     Eric Anholt <eric@...olt.net>, linux-kernel@...r.kernel.org,
        bcm-kernel-feedback-list@...adcom.com,
        linux-rpi-kernel@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [GIT PULL 1/3] bcm2835-dt-next-2019-01-29

Hi Florian,

Am 01.02.19 um 06:02 schrieb Florian Fainelli:
>
> On 1/31/19 8:10 PM, Florian Fainelli wrote:
>>
>> On 1/29/19 10:53 AM, Stefan Wahren wrote:
>>> Hi Florian,
>>>
>>> sorry for being that late and hoping it's not too late.
>>>
>>> The following changes since commit bfeffd155283772bbe78c6a05dec7c0128ee500c:
>>>
>>>   Linux 5.0-rc1 (2019-01-06 17:08:20 -0800)
>>>
>>> are available in the git repository at:
>>>
>>>   git://github.com/anholt/linux tags/bcm2835-dt-next-2019-01-29
>>>
>>> for you to fetch changes up to 14117e0af4a853b2b37925f526b2bfe1cfc7b285:
>>>
>>>   ARM: dts: bcm2835-rpi-zero-w: Drop unnecessary pinctrl (2019-01-22 07:25:59 +0100)
>>>
>>> ----------------------------------------------------------------
>>> This pull request adds the necessary changes for the new BCM2835 PM driver,
>>> support for the new Raspberry Pi 3 A+ and the missing GPIO labels for RPi 2/3.
>>> Additionally it contains some minor DT fixes.
>>>
>>> ----------------------------------------------------------------
>> Merged into devicetree/next, thanks Stefan!
> And backed out, integration failed with the following results:
>
> [X] aiaiai build results:
> Tested the patch(es) on top of the following commits:
> bfeffd155283 Linux 5.0-rc1
> 85e1ffbd42f6 Merge tag 'kbuild-v4.21-3' of
> git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
> ac5eed2b4177 Merge branch 'perf-urgent-for-linus' of
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
> 574823bfab82 Change mincore() to count "mapped" pages rather than
> "cached" pages
>
> --------------------------------------------------------------------------------
> Failed to build : 22065550c391 ARM: dts: bcm2835-rpi-zero-w: Drop
> unnecessary pinctrl
> Configuration: "multi_v7_defconfig, architecture arm".
>
>
> In file included from arch/arm/boot/dts/bcm2835.dtsi:2:0,
>                  from arch/arm/boot/dts/bcm2835-rpi-a.dts:3:
> arch/arm/boot/dts/bcm283x.dtsi:6:10: fatal error:
> dt-bindings/soc/bcm2835-pm.h: No such file or directory
>  #include <dt-bindings/soc/bcm2835-pm.h>
>           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> compilation terminated.
> make[2]: *** [arch/arm/boot/dts/bcm2835-rpi-a.dtb] Error 1
>
> --------------------------------------------------------------------------------
> Failed to build : 22065550c391 ARM: dts: bcm2835-rpi-zero-w: Drop
> unnecessary pinctrl
> Configuration: "bcm2835_defconfig, architecture arm".
>
> It looks like commit "ARM: bcm283x: Switch V3D over to using the PM
> driver instead of firmware." is failing here and we should also have
> "soc: bcm: bcm2835-pm: Add support for power domains under a new
> binding." present as a preriquisite to build this branch.
>
> Alternatively, if you prefer to put "ARM: bcm283x: Switch V3D over to
> using the PM driver instead of firmware." in your drivers pull request,
> that might work too.
>
> I have kept pull request 2 and 3 applied for now, let me know how you
> want to proceed.

oh dear. I apologize for this crap. I thought that i tested this before.

Unfortunately none of your suggestions works without conflicts. All the
PM patches depend on each other. So my suggestion is to move all PM patches out of bcm2835-dt-next and apply the following on top of bcm2835-drivers-next:

ARM: bcm283x: Extend the WDT DT node out to cover the whole PM block
ARM: bcm283x: Switch V3D over to using the PM driver instead of firmware.

Would it be acceptable?

Thanks Stefan