Linux-LEDs Archive on lore.kernel.org
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From: Oleh Kravchenko <oleg@kaa.org.ua>
To: Pavel Machek <pavel@ucw.cz>
Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>,
	devicetree@vger.kernel.org, linux-leds@vger.kernel.org
Subject: Re: [PATCH v4 2/2] leds: add LED driver for EL15203000 board
Date: Tue, 20 Aug 2019 10:46:30 +0300
Message-ID: <360390b3-c6d4-52e2-287c-8c90369a5c5c@kaa.org.ua> (raw)
In-Reply-To: <20190817150246.GB18381@amd>

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Hello Pavel,

17.08.19 18:02, Pavel Machek пише:
> Hi!
> 
>>>>>> All pattern is predefined, you can't change them at all.
>>>>>> I just tried to describe real things what happened in LED board.
>>>>>> It's ticks every 800 milliseconds for Pipe LEDs.
>>>>>
>>>>> It makes me wonder how you figured out the values? If you have
>>>>> a documentation for this controller, could you share how the pattern
>>>>> settings are documented?
>>>>
>>>> I saw the code of firmware.
>>>> Not sure if I can find any documentation for it right now.
>>>
>>> Have you tried to alter the values? Or check what happens when
>>> the duplication is removed?
>>
>> What do you mean alter? It doesn't make any sense.
>> Board is accepts only brightness level from '0' to '5'.
>> I'm really confused :-)
> 
> For the record, what you did seems ok to me.

Thanks :)
 
>>>> Ok, I will reduce it.
>>>
>>> Please hold on for a while. I will have some more remarks to the driver,
>>> just collecting missing info for now to gain more complete view on this
>>> device.
>>
>> Here is the full story:
>>
>> EL15203000 LEDs board (aka RED LEDs board, because it has only RED LEDs).
>> It's provide access to 3 LEDs:
>>
>> - First LED (Screen) is a light tube around big 21" screen
>>   It's have 3 brightness levels:
>>   * OFF
>>   * ON
>>   * Breathing mode (8 seconds full cycle)
>> - Second LED (Vending area) is highlight coffee cap
>>   * OFF
>>   * ON
> 
> Again, this is ok.
> 
>> - Third LED (Pipe) is actually virtual, because consists from 5 LEDs
>>   * OFF for all 5 LEDs
>>   * ON for all 5 LEDs
>>   * Cascade
>>   * Inverses cascade
>>   * Bounce
>>   * Inverses bounce
> 
> But having one virtual LED that is really five LEDs scares me a tiny
> bit. But I guess its ok for your case...
> 
> Best regards,
> 									Pavel
> 
> 
> 
> 

-- 
Best regards,
Oleh Kravchenko



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  reply index

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-08 20:32 [PATCH v4 1/2] dt-bindings: Add docs for EL15203000 Oleh Kravchenko
2019-08-08 20:32 ` [PATCH v4 2/2] leds: add LED driver for EL15203000 board Oleh Kravchenko
2019-08-13 20:28   ` Jacek Anaszewski
2019-08-13 20:37     ` Oleh Kravchenko
2019-08-14 18:18       ` Jacek Anaszewski
2019-08-14 19:46         ` Oleh Kravchenko
2019-08-14 19:57           ` Jacek Anaszewski
2019-08-14 20:16             ` Oleh Kravchenko
2019-08-14 20:53               ` Jacek Anaszewski
2019-08-14 20:58                 ` Oleh Kravchenko
2019-08-17 15:02               ` Pavel Machek
2019-08-20  7:46                 ` Oleh Kravchenko [this message]
2019-08-18 13:47   ` Jacek Anaszewski
2019-08-27 20:43     ` Oleh Kravchenko
2019-08-27 20:56       ` Jacek Anaszewski
2019-08-27 21:11         ` Oleh Kravchenko
2019-08-27 21:18           ` Jacek Anaszewski
2019-08-27 21:26             ` Oleh Kravchenko
2019-08-13 20:31 ` [PATCH v4 1/2] dt-bindings: Add docs for EL15203000 Dan Murphy
2019-08-14 19:54   ` Jacek Anaszewski
2019-08-18 13:41 ` Jacek Anaszewski
2019-08-20  7:50   ` Oleh Kravchenko

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