linux-kernel - Re: [PATCH RFC 0/6] Add QCOM pwm-lpg and tri-led drivers

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20200724223150.GB21965@amd>
Date:   Sat, 25 Jul 2020 00:31:50 +0200
From:   Pavel Machek <pavel@....cz>
To:     Martin Botka <martin.botka1@...il.com>
Cc:     Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Dan Murphy <dmurphy@...com>, Rob Herring <robh+dt@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, Lee Jones <lee.jones@...aro.org>,
        linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pwm@...r.kernel.org
Subject: Re: [PATCH RFC 0/6] Add QCOM pwm-lpg and tri-led drivers

Hi!

> > Dalsi cech co hackuje LEDky?
> 
> Nie. Slovak.

Vitej do klubu :-).

> > Bindings should go first, they may need to be converted to yml
> > (devicetree people will know).
> 
> OK

I'm not 100% sure, please double check.

> > Can generic pwm driver be used here?
> 
> I have not tried to do that. But considering it's custom chip from Qualcomm
> then it's unlikely.

Please double check. Actually, is the series for one chip or for two
of them? LED framework should is happy to talk to generic pwm driver...

> >This is for RGB modules, right? It will need to use multicolor
> >framework.
> 
> This is for RGB LEDs in phones that are connected via pmic.

Ok. Check multicolor framework in -next.

> > Is this for phone, btw? If so, which one?
> 
> Yes it is. And it's for many many phones actually. I have done this mainly
> for SONY phones (Xperia 10, 10 Plus, XA2, XA2 Plus, XA2 Ultra).
> All of them use these drivers for generating the PWM and controlling the
> LEDs.

Aha, ok. I assume they are still quite far away from being usable with
mainline kernels.

Best regards,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Download attachment "signature.asc" of type "application/pgp-signature" (182 bytes)