linux-kernel - Re: [PATCH v2] leds: fix brightness changing when software blinking is active

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Message-ID: <CAK5ve-Lwv4=a7MwRv6rH10q4HgikQbTKW8o9xrr030bKv0d1vg@mail.gmail.com>
Date:	Tue, 19 May 2015 17:00:54 -0700
From:	Bryan Wu <cooloney@...il.com>
To:	Jacek Anaszewski <j.anaszewski@...sung.com>
Cc:	Stas Sergeev <stsp@...t.ru>,
	Linux LED Subsystem <linux-leds@...r.kernel.org>,
	Linux kernel <linux-kernel@...r.kernel.org>,
	Richard Purdie <rpurdie@...ys.net>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Stas Sergeev <stsp@...rs.sourceforge.net>
Subject: Re: [PATCH v2] leds: fix brightness changing when software blinking
 is active

On Fri, May 15, 2015 at 7:41 AM, Jacek Anaszewski
<j.anaszewski@...sung.com> wrote:
> On 05/15/2015 04:11 PM, Stas Sergeev wrote:
>>
>> 15.05.2015 17:09, Jacek Anaszewski пишет:
>>>
>>> On 05/15/2015 10:12 AM, Jacek Anaszewski wrote:
>>>>
>>>> Hi Stas,
>>>>
>>>> On 05/14/2015 05:24 PM, Stas Sergeev wrote:
>>>>>
>>>>>
>>>>> The following sequence:
>>>>> echo timer >/sys/class/leds/<name>/trigger
>>>>> echo 1 >/sys/class/leds/<name>/brightness
>>>>> should change the ON brightness for blinking.
>>>>> The function led_set_brightness() was mistakenly initiating the
>>>>> delayed blink stop procedure, which resulted in no blinking with
>>>>> the timer trigger still active.
>>>>>
>>>>> This patch fixes the problem by changing led_set_brightness()
>>>>> to not initiate the delayed blink stop when brightness is not 0.
>>>
>>>
>>> This commit message is not valid for this version of the patch.
>>
>> Why do you think so?
>> ---
>> -               schedule_work(&led_cdev->set_brightness_work);
>> +               if (brightness == LED_OFF)
>> +                       schedule_work(&led_cdev->set_brightness_work);
>> ---
>>
>> LED_OFF is a 0 define.
>>
>
> You're right, I was just looking at the issue from different
> perspective.
>

Applied into my tree. Thanks,
-Bryan
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