linux-kernel - Re: [PATCH 03/24] leds: dt-bindings: Add LED

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Date:   Sun, 11 Nov 2018 21:20:56 +0100
From:   Pavel Machek <pavel@....cz>
To:     Jacek Anaszewski <jacek.anaszewski@...il.com>
Cc:     linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, robh@...nel.org,
        Baolin Wang <baolin.wang@...aro.org>,
        Daniel Mack <daniel@...que.org>, Dan Murphy <dmurphy@...com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Oleh Kravchenko <oleg@....org.ua>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Simon Shields <simon@...eageos.org>,
        Xiaotong Lu <xiaotong.lu@...eadtrum.com>
Subject: Re: [PATCH 03/24] leds: dt-bindings: Add LED_FUNCTION definitions

Hi!

> >> +#define LED_FUNCTION_BACKLIGHT "backlight"
> >> +#define LED_FUNCTION_BACKLIGHT_CLUSTER "backlight_cluster"
> > 
> > Sounds like one of backlight and backlight_cluster should be deprecated?
> 
> I think so.

Agreed.

> >> +#define LED_FUNCTION_DEBUG "debug"
> >> +#define LED_FUNCTION_DIA "dia"
> > 
> > What does this one do?
> 
> I'd opt for something like "diagnostics", but this is a blind shot.
> Let's remove it then and, and let people add more meaningful
> definition in case it is needed.
> 
> >> +#define LED_FUNCTION_DISK "disk"
> > 
> > We have disk, hd, hdd and sata. Deprecate some?
> 
> Disk should be the best choice, especially given that we have
> identically named trigger.

Ok.

> >> +#define LED_FUNCTION_HD "hd"
> >> +#define LED_FUNCTION_HDD "hdd"
> >> +#define LED_FUNCTION_HDDERR "hdderr"
> > 
> > Ok, I'll 
> 
> Hmm?

I was going to say that I'll bring it up in different email.

I believe we should have disk:green:activity and disk:red:error, not
"green:hdd" and "red:hdderr".

> >> +#define LED_FUNCTION_HEALTH "health"
> >> +#define LED_FUNCTION_HEARTBEAT "heartbeat"
> > 
> > Sounds same as alive, deprecate alive?
> 
> Heartbeat may be designated specifically for registration
> for events from the trigger with the same name.

Ok. What is "alive" then?

> >> +#define LED_FUNCTION_WIFI "wifi"
> >> +#define LED_FUNCTION_WIRELESS "wireless"
> >> +#define LED_FUNCTION_WLAN "wlan"
> > 
> > Same as wifi and wireless, I guess, deprecate some?
> 
> I'd remove "wireless" and "wlan".

Actually I'd keep wlan, but... :-).

We may want to do add some comments there, and sort it "most
common/recommended first" or something.

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

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