linux-kernel - Re: [PATCH v9 1/4] dt-bindings: mfd: Fix schema warnings for pwm-leds

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Date:   Sun, 17 Jan 2021 22:02:54 -0600
From:   Jeff LaBundy <jeff@...undy.com>
To:     Lee Jones <lee.jones@...aro.org>, Rob Herring <robh+dt@...nel.org>,
        Alexander Dahl <ada@...rsis.com>, linux-leds@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-amlogic@...ts.infradead.org, Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v9 1/4] dt-bindings: mfd: Fix schema warnings for pwm-leds

Hi Alexander,

Thanks again for your work on this.

On Fri, Jan 15, 2021 at 10:42:39AM +0100, Alexander Dahl wrote:
> Hello Jeff,
> 
> On Thu, Jan 14, 2021 at 09:50:50PM -0600, Jeff LaBundy wrote:
> > On Thu, Jan 14, 2021 at 10:03:12AM +0000, Lee Jones wrote:
> > > On Mon, 28 Dec 2020, Alexander Dahl wrote:
> > > 
> > > > The node names for devices using the pwm-leds driver follow a certain
> > > > naming scheme (now).  Parent node name is not enforced, but recommended
> > > > by DT project.
> > > > 
> > > >   DTC     Documentation/devicetree/bindings/mfd/iqs62x.example.dt.yaml
> > > >   CHECK   Documentation/devicetree/bindings/mfd/iqs62x.example.dt.yaml
> > > > /home/alex/build/linux/Documentation/devicetree/bindings/mfd/iqs62x.example.dt.yaml: pwmleds: 'panel' does not match any of the regexes: '^led(-[0-9a-f]+)?$', 'pinctrl-[0-9]+'
> > > >         From schema: /home/alex/src/linux/leds/Documentation/devicetree/bindings/leds/leds-pwm.yaml
> > > > 
> > > > Signed-off-by: Alexander Dahl <post@...pocky.de>
> > > > Acked-by: Jeff LaBundy <jeff@...undy.com>
> > > > Acked-by: Rob Herring <robh@...nel.org>
> > > > ---
> > > > 
> > > > Notes:
> > > >     v8 -> v9:
> > > >       * added forgotten Acked-by (Jeff LaBundy)
> > > >       * rebased on v5.11-rc1
> > > >     
> > > >     v7 -> v8:
> > > >       * rebased on recent pavel/for-next (post v5.10-rc1)
> > > >       * added Acked-by (Rob Herring)
> > > >     
> > > >     v6 -> v7:
> > > >       * added warning message to commit message (Krzysztof Kozlowski)
> > > >     
> > > >     v6:
> > > >       * added this patch to series
> > > > 
> > > >  Documentation/devicetree/bindings/mfd/iqs62x.yaml | 5 +++--
> > > >  1 file changed, 3 insertions(+), 2 deletions(-)
> > > 
> > > Failed to apply:
> > > 
> > > Applying: dt-bindings: mfd: Fix schema warnings for pwm-leds
> > > Using index info to reconstruct a base tree...
> > > M	Documentation/devicetree/bindings/mfd/iqs62x.yaml
> > > /home/lee/projects/linux/kernel/.git/worktrees/mfd/rebase-apply/patch:34: indent with spaces.
> > >             led-1 {
> > > /home/lee/projects/linux/kernel/.git/worktrees/mfd/rebase-apply/patch:35: indent with spaces.
> > >                     label = "panel";
> > > warning: 2 lines add whitespace errors.
> > > Falling back to patching base and 3-way merge...
> > > Auto-merging Documentation/devicetree/bindings/mfd/iqs62x.yaml
> > > CONFLICT (content): Merge conflict in Documentation/devicetree/bindings/mfd/iqs62x.yaml
> > > Recorded preimage for 'Documentation/devicetree/bindings/mfd/iqs62x.yaml'
> > 
> > It looks like the following patch already beat this to the punch:
> > 
> > 8237e8382498 ("dt-bindings: mfd: Correct the node name of the panel LED")
> 
> Which tree is that commit on? This one?
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git/

That's correct.

> 
> > That patch does not retain the LED's label or rename the parent node to
> > led-controller, however. The label hardly matters for this example, but
> > perhaps we still want the parent node change to follow leds-pwm.yaml.
> 
> Should I rework the patch then to have that change only?

That seems like a reasonable compromise.

> 
> Greets
> Alex
> 
> -- 
> /"\ ASCII RIBBON | »With the first link, the chain is forged. The first
> \ / CAMPAIGN     | speech censured, the first thought forbidden, the
>  X  AGAINST      | first freedom denied, chains us all irrevocably.«
> / \ HTML MAIL    | (Jean-Luc Picard, quoting Judge Aaron Satie)

Kind regards,
Jeff LaBundy