Linux PWM subsystem development
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From: "Uwe Kleine-König" <u.kleine-koenig@baylibre.com>
To: "Daniel Mack" <daniel@zonque.org>,
	"Haojian Zhuang" <haojian.zhuang@gmail.com>,
	"Robert Jarzmik" <robert.jarzmik@free.fr>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
	"Conor Dooley" <conor+dt@kernel.org>,
	"Duje Mihanović" <duje.mihanovic@skole.hr>
Cc: "Hervé Codina" <herve.codina@bootlin.com>,
	linux-arm-kernel@lists.infradead.org, linux-pwm@vger.kernel.org,
	devicetree@vger.kernel.org
Subject: [PATCH 0/3] pwm: pxa: Use #pwm-cells = <3>
Date: Wed,  5 Feb 2025 18:53:59 +0100	[thread overview]
Message-ID: <cover.1738777221.git.u.kleine-koenig@baylibre.com> (raw)

Hello,

this series' goal is to soften the special device-tree binding of
marvel,pxa-pwm devices. This is the only binding that doesn't pass the
line index as first parameter. 

Here the #pwm-cells value is bumped from 1 to 3, keeping compatibility
with the old binding. 

The motivation for this was that Hervé sent a patch introducing pwm
nexus nodes which don't work nicely with the marvel,pxa-pwm
particularities.

For merging this series (assuming device-tree and pxa maintainers agree)
I guess keeping the patches together makes sense because with the 2nd
patch applied but without the 3rd there are a few dt-checker warnings.

So I suggest to take it via my pwm tree as I guess drivers/pwm/core.c
has more potential for a conflict than arch/arm/boot/dts/intel/pxa.
So please send Acks and tell me if you would need an immutable branch
for pulling into the PXA tree.

Best regards
Uwe

Uwe Kleine-König (3):
  pwm: Add upgrade path to #pwm-cells = <3> for users of
    of_pwm_single_xlate()
  dt-bindings: pwm: marvell,pxa-pwm: Update to use #pwm-cells = <3>
  ARM: dts: pxa: Use #pwm-cells = <3> for marvell,pxa-pwm devices

 .../devicetree/bindings/pwm/marvell,pxa-pwm.yaml |  3 +--
 arch/arm/boot/dts/intel/pxa/pxa25x.dtsi          |  4 ++--
 arch/arm/boot/dts/intel/pxa/pxa27x.dtsi          |  8 ++++----
 .../dts/intel/pxa/pxa300-raumfeld-controller.dts |  2 +-
 arch/arm/boot/dts/intel/pxa/pxa3xx.dtsi          |  8 ++++----
 drivers/pwm/core.c                               | 16 ++++++++++++++++
 6 files changed, 28 insertions(+), 13 deletions(-)


base-commit: c98e66144b7d07ee9a3ca8241123b628a8ac0288
-- 
2.47.1


             reply	other threads:[~2025-02-05 17:54 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-05 17:53 Uwe Kleine-König [this message]
2025-02-05 17:54 ` [PATCH 1/3] pwm: Add upgrade path to #pwm-cells = <3> for users of of_pwm_single_xlate() Uwe Kleine-König
2025-02-05 18:02   ` Herve Codina
2025-02-05 17:54 ` [PATCH 2/3] dt-bindings: pwm: marvell,pxa-pwm: Update to use #pwm-cells = <3> Uwe Kleine-König
2025-02-05 19:13   ` Conor Dooley
2025-02-05 19:35   ` Rob Herring (Arm)
2025-02-05 17:54 ` [PATCH 3/3] ARM: dts: pxa: Use #pwm-cells = <3> for marvell,pxa-pwm devices Uwe Kleine-König
2025-02-05 18:19 ` [PATCH 0/3] pwm: pxa: Use #pwm-cells = <3> Duje Mihanović
2025-02-05 18:32 ` Daniel Mack

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