linux-kernel - Re: [PATCH 1/9] dt-bindings: pwm: marvell,pxa: add optional property resets

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Message-ID: <hogqotzzpzcow2xjrwh34qcuiu7ooc2qnvlhuvexzvqkrcsfop@mhz26t5vu35p>
Date: Wed, 16 Apr 2025 07:18:27 +0200
From: Uwe Kleine-König <ukleinek@...nel.org>
To: Yixun Lan <dlan@...too.org>
Cc: Alex Elder <elder@...cstar.com>, Guodong Xu <guodong@...cstar.com>, 
	Philipp Zabel <p.zabel@...gutronix.de>, Conor Dooley <conor@...nel.org>, robh@...nel.org, 
	krzk+dt@...nel.org, conor+dt@...nel.org, paul.walmsley@...ive.com, 
	palmer@...belt.com, aou@...s.berkeley.edu, alex@...ti.fr, drew@...7.com, 
	inochiama@...il.com, geert+renesas@...der.be, heylenay@....org, tglx@...utronix.de, 
	hal.feng@...rfivetech.com, unicorn_wang@...look.com, duje.mihanovic@...le.hr, 
	linux-pwm@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-riscv@...ts.infradead.org, spacemit@...ts.linux.dev
Subject: Re: [PATCH 1/9] dt-bindings: pwm: marvell,pxa: add optional property
 resets

Hello,

On Tue, Apr 15, 2025 at 12:28:07PM +0000, Yixun Lan wrote:
> maybe there are cases that users don't want to issue a reset..
> so, want to make it optional.. I can think one example that,
> display controller is up and working from bootloader to linux,
> reset it will got a flicker picture..

Agreed. You can just deassert the reset at probe time. That shouldn't
interfere with a PWM that is already producing an output.

> GPG Key ID AABEFD55

If you advertise your OpenPGP certificate, I recommend using the long
id. See for example https://keys.openpgp.org/search?q=AABEFD55.

Download attachment "signature.asc" of type "application/pgp-signature" (489 bytes)