linux-kernel - Re: [PATCH 1/2] dt-bindings: pwm: mediatek,mt2712: add compatible for MT7988

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Date: Fri, 16 Feb 2024 09:56:51 +0100
From: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To: Rafał Miłecki <zajec5@...il.com>, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: Conor Dooley <conor@...nel.org>, 
	Matthias Brugger <matthias.bgg@...il.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	John Crispin <john@...ozen.org>, linux-pwm@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-mediatek@...ts.infradead.org, Rafał Miłecki <rafal@...ecki.pl>
Subject: Re: [PATCH 1/2] dt-bindings: pwm: mediatek,mt2712: add compatible
 for MT7988

Hello,

On Wed, Feb 14, 2024 at 10:27:54AM +0100, AngeloGioacchino Del Regno wrote:
> Il 14/02/24 07:34, Rafał Miłecki ha scritto:
> > On 13.02.2024 19:18, Conor Dooley wrote:
> > > On Tue, Feb 13, 2024 at 05:46:32PM +0100, Rafał Miłecki wrote:
> > > > From: Rafał Miłecki <rafal@...ecki.pl>
> > > > 
> > > > MT7988 has on-SoC controller that can control up to 8 PWMs.
> > > 
> > > I see a binding and a dts patch, but no driver patch, how come?
> > 
> > I believe that to avoid cross-trees patchsets (which are sometimes
> > tricky for maintainers) there are two ways of submiting such changes:
> > 1. dt-binding + driver; then (separately) DTS
> > 2. dt-binding + DTS; then (separately) driver
> > 
> > I chose later in this case as my personal priority right now is to deal
> > with all MediaTek DTS files.
> > 
> > Is that wrong or unacceptable?
> > 
> 
> It's not wrong but it's partially unacceptable, at least on my side.
> 
> In my opinion (and I believe many do agree with me), sending the binding along
> with the driver is the right choice, and if you also want to include the dts
> that is also appreciated: series can go through multiple maintainers applying
> subsets - it's ok to do.

Just to put in my 2 ¢:
My preference is to not avoid cross-trees patchsets and put all three
patches in a single series. This combines the advantages of 1. and 2.
Given this happens often enough this is something that the maintainers
are used to handle just fine, so the cross-tree issue isn't problematic
most of the time. The conflicts that sometimes arise with cross-tree
patches aren't bad enough to out-weight having binding, driver and dts
changes all together.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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