From: Pavel Machek <pavel@denx.de>
To: Jacek Anaszewski <j.anaszewski@samsung.com>
Cc: linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org,
"Bryan Wu" <cooloney@gmail.com>,
"Richard Purdie" <rpurdie@rpsys.net>,
"Stas Sergeev" <stsp@users.sourceforge.net>,
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Subject: Re: [PATCH/RFC RESEND] leds: Use set_brightness_work for brightness_set ops that can sleep
Date: Tue, 30 Jun 2015 13:58:09 +0200 [thread overview]
Message-ID: <20150630115809.GA13605@amd> (raw)
In-Reply-To: <1435651268-9657-1-git-send-email-j.anaszewski@samsung.com>
On Tue 2015-06-30 10:01:08, Jacek Anaszewski wrote:
> This patch rearranges the core LED subsystem code, so that it
> now removes from drivers the responsibility of using work queues
> internally in case their brightness_set ops can sleep.
> Addition of two flags: LED_BRIGHTNESS_FAST and LED_BLINK_DISABLE
> as well as new_brightness_value property to the struct led_classdev
> allows for employing existing set_brightness_work to do the job.
> The modifications allow also to get rid of brightness_set_sync op,
> as flash LED devices can now be handled properly only basing on the
> SET_BRIGHTNESS_SYNC flag.
Are you sure this is good idea?
You'll now use single callback for blocking and non-blocking
behaviour. I'm pretty sure stuff like lockdep will have some fun with
that.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2015-06-30 11:58 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-30 8:01 [PATCH/RFC RESEND] leds: Use set_brightness_work for brightness_set ops that can sleep Jacek Anaszewski
2015-06-30 8:27 ` Jacek Anaszewski
2015-06-30 11:41 ` Stas Sergeev
2015-06-30 12:41 ` Jacek Anaszewski
2015-06-30 12:55 ` Stas Sergeev
2015-06-30 11:58 ` Pavel Machek [this message]
2015-06-30 13:06 ` Jacek Anaszewski
2015-06-30 17:46 ` Pavel Machek
2015-07-01 7:28 ` Jacek Anaszewski
2015-07-01 7:43 ` Pavel Machek
2015-07-01 10:47 ` Jacek Anaszewski
2015-07-01 13:37 ` Pavel Machek
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