linux-kernel - Re: [PATCHv7] ARM: exynos_defconfig: Enable LEDS for Odroid-XU3/XU4

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Message-ID: <55E8E534.1040204@osg.samsung.com>
Date:	Fri, 4 Sep 2015 02:26:28 +0200
From:	Javier Martinez Canillas <javier@....samsung.com>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Anand Moon <linux.amoon@...il.com>,
	Russell King <linux@....linux.org.uk>,
	Kukjin Kim <kgene@...nel.org>,
	Andreas Faerber <afaerber@...e.de>,
	Lukasz Majewski <l.majewski@...sung.com>,
	Sjoerd Simons <sjoerd.simons@...labora.co.uk>
Cc:	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCHv7] ARM: exynos_defconfig: Enable LEDS for Odroid-XU3/XU4

Hello Krzysztof,

On 09/04/2015 01:55 AM, Krzysztof Kozlowski wrote:
> On 04.09.2015 03:11, Anand Moon wrote:
>> Earlier design of the LED for Odroid XU3 was using gpio-leds
>> Now It was change to using both pwm-leds and gpio-leds.
> 
> It is still not a reason for this change. gpio-leds were not enabled
> before. This could be a valid reason of adding LEDS_PWM to existing
> config LEDS_GPIO. But LEDS_GPIO were not enabled... so why the change on
> the board from gpio->(gpio+pwm) means that we have to enable LEDS_GPIO?
>

Agreed, also the commit message doesn't explain why the heartbeat
LED trigger is enabled as I mentioned in the previous version.

> Actually I gave up on this and I wanted to change the commit message on
> myself when applying. But discussion was brought up again so... clearly
> we have different understanding of the meaning of "WHY". :)
>
> Best regards,
> Krzysztof
> 
 
Best regards,
-- 
Javier Martinez Canillas
Open Source Group
Samsung Research America
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