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From: Pavel Machek <pavel@ucw.cz>
To: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: David Lechner <david@lechnology.com>,
	Baolin Wang <baolin.wang@linaro.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Mark Brown <broonie@kernel.org>,
	Linux LED Subsystem <linux-leds@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 1/2] leds: core: Introduce generic pattern interface
Date: Thu, 19 Jul 2018 00:17:17 +0200	[thread overview]
Message-ID: <20180718221717.GA5451@amd> (raw)
In-Reply-To: <0e0cd8f7-dc73-6733-65f2-9a14506b0f0e@gmail.com>

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Hi!

> >Please keep in mind that this is ABI documentation for the pattern file
> >to be exposed by LED core, and not by the pattern trigger, that, as we
> >agreed, will be implemented later. In this case, I'd go for
> 
> Gosh, I got completely distracted by the recent discussion about
> pattern synchronization.
> 
> So, to recap, we need to decide if we are taking Baolin's solution
> or we're opting for implementing pattern trigger.
> 
> If we choose the latter, then we will also need some software
> pattern engine in the trigger, to be applied as a software pattern
> fallback for the devices without hardware pattern support.
> It will certainly delay the contribution process, provided that Baolin
> would find time for this work at all.

I'd recommend the latter. Yes, software pattern as a fallback would be
nice, but I have that code already... let me get it back to running
state, and figure out where to add interface for "hardware
acceleration". I'd like to have same interface to userland, whether
pattern can be done by hardware or by software.

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

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  parent reply	other threads:[~2018-07-18 22:17 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-29  5:03 [PATCH v3 1/2] leds: core: Introduce generic pattern interface Baolin Wang
2018-06-29  5:03 ` [PATCH v3 2/2] leds: sc27xx: Add pattern_set/get/clear interfaces for LED controller Baolin Wang
2018-07-11 11:02 ` [PATCH v3 1/2] leds: core: Introduce generic pattern interface Baolin Wang
2018-07-11 21:10   ` Jacek Anaszewski
2018-07-12 12:24     ` Baolin Wang
2018-07-12 21:41       ` Jacek Anaszewski
2018-07-13  1:58         ` Baolin Wang
2018-07-14 21:20       ` Pavel Machek
2018-07-14 22:02         ` Jacek Anaszewski
2018-07-14 22:29           ` Pavel Machek
2018-07-14 22:39             ` Pavel Machek
2018-07-15 12:22               ` Jacek Anaszewski
2018-07-16  1:00                 ` David Lechner
2018-07-16 20:29                   ` Jacek Anaszewski
2018-07-16 21:56                     ` Pavel Machek
2018-07-17 20:26                       ` Jacek Anaszewski
2018-07-17 21:07                         ` Pavel Machek
2018-07-24  0:35                       ` Bjorn Andersson
2018-07-18  7:56                     ` Pavel Machek
2018-07-18 11:32                       ` Baolin Wang
2018-07-18 12:08                         ` Pavel Machek
2018-07-18 17:00                           ` David Lechner
2018-07-20 19:11                             ` Jacek Anaszewski
2018-07-24  0:55                               ` Bjorn Andersson
2018-07-18 18:54                       ` Jacek Anaszewski
2018-07-18 19:22                         ` Jacek Anaszewski
2018-07-18 22:13                           ` David Lechner
2018-07-18 22:17                           ` Pavel Machek [this message]
2018-07-19 20:20                             ` Pavel Machek
2018-07-20 18:08                               ` Jacek Anaszewski
2018-07-23  6:59                               ` Baolin Wang
2018-07-24 11:41                                 ` Pavel Machek
2018-07-27  5:15                                   ` Baolin Wang
2018-07-27  8:36                                     ` Pavel Machek
2018-07-27  8:41                                       ` Baolin Wang
2018-07-24 11:50                                 ` Pavel Machek
2018-07-24  0:18                   ` Bjorn Andersson
2018-07-16 11:08                 ` Baolin Wang

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