linux-kernel - RE: [PATCH v2 0/2] Add Support for LTC3220 18 Channel LED Driver V2

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Message-ID:
 <PH0PR03MB652508CC0CB53611A72A8119ED8EA@PH0PR03MB6525.namprd03.prod.outlook.com>
Date: Tue, 13 Jan 2026 08:12:16 +0000
From: "Escala, Edelweise" <Edelweise.Escala@...log.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
CC: Lee Jones <lee@...nel.org>, Pavel Machek <pavel@...nel.org>,
        Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        "linux-leds@...r.kernel.org"
	<linux-leds@...r.kernel.org>,
        "devicetree@...r.kernel.org"
	<devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v2 0/2] Add Support for LTC3220 18 Channel LED Driver V2


> Subject: Re: [PATCH v2 0/2] Add Support for LTC3220 18 Channel LED Driver
> V2
> 
> [External]
> 
> On Mon, Jan 12, 2026 at 04:55:53PM +0800, Edelweise Escala wrote:
> > The LTC3220/LTC3220-1 is a multi-display LED driver, which contains a
> > high-efficiency, low-noise charge pump to provide power to up to
> > 18 LED current sources. The LEDs are individually configurable to
> > 64-step linear brightness control, blinking and gradation control via
> > 2-wire I2C interface. The blinking and gradation configuration is
> > shared across all LED.
> >
> > LTC3220 has a quick write function which allows changing the
> > brightness on all LEDS simultaneously when the brightness is changed on
> led 1.
> > For this we made quick write a device property which user can set on
> > the device tree. We would like to know if this approach is alright?
> > Another way we might want to know is, is it alright to just make a
> > virtual led for the quick write function. Changing brightness on the
> > virtual led will change the brightness for all.
> >
> > V2 Changelog:
> > leds-ltc3220.yaml changes
> > -Fix wrapping on description
> > -Improve description and commit messge to describe hardware -Drop
> > ltc3220-1 -Drop charge pump ltc3220.c changes -Fix wrapping -Drop
> > ltc3220-1 -Drop devname_mandatory


Apologies my edit on the cover letter is wrong I wrote the changelog above. But this should be the changelog

> > Signed-off-by: Edelweise Escala <edelweise.escala@...log.com>
> > ---
> > Changes in v2:
> > - EDITME: describe what is new in this series revision.
> > - EDITME: use bulletpoints and terse descriptions.
> 
> Huh?

Best Regards,
Edelweise Escala