From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCHv9 1/3] Runtime Interpreted Power Sequences
Date: Tue, 27 Nov 2012 16:46:07 +0000 [thread overview]
Message-ID: <20121127164607.GG4468@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <3136860.Z3VvKjeKpU@avalon>
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On Tue, Nov 27, 2012 at 04:37:32PM +0100, Laurent Pinchart wrote:
> One possibly crazy idea I had was to replace backlight devices as we know them
> with LED devices (a LED driver IC shouldn't be supported by different APIs
> depending on whether the LEDs it drives are used as a backlight or not), and
> have the panel hook up with the associated LED device to expose backlight
> operations through the CDF. Panels with a backlight controller tied to the
> panel controller (control through DSI for instance) would implement the
> backlight operations directly without instantiating a LED device. This still
> leaves the question of the userspace backlight brightness API open.
I remember looking at that before but never actually got round to it, it
seems like a sensible idea to me.
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next prev parent reply other threads:[~2012-11-27 16:46 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-17 10:55 [PATCHv9 0/3] Runtime Interpreted Power Sequences Alexandre Courbot
2012-11-17 10:55 ` [PATCHv9 1/3] " Alexandre Courbot
2012-11-17 11:38 ` Anton Vorontsov
2012-11-19 2:29 ` Alex Courbot
2012-11-19 2:32 ` Anton Vorontsov
2012-11-20 14:48 ` Tomi Valkeinen
2012-11-21 1:56 ` Alex Courbot
2012-11-21 8:13 ` Tomi Valkeinen
2012-11-21 8:32 ` Alex Courbot
2012-11-21 8:48 ` Tomi Valkeinen
2012-11-21 10:00 ` Alex Courbot
2012-11-22 13:01 ` Grant Likely
2012-11-20 21:54 ` Grant Likely
2012-11-21 1:31 ` Mark Brown
2012-11-21 16:44 ` Grant Likely
2012-11-22 8:57 ` Linus Walleij
2012-11-22 9:55 ` Alexandre Courbot
2012-11-23 1:44 ` Mark Brown
2012-11-21 4:23 ` Alex Courbot
2012-11-21 11:06 ` Tomi Valkeinen
2012-11-21 11:40 ` Thierry Reding
2012-11-21 12:04 ` Tomi Valkeinen
2012-11-21 13:00 ` Thierry Reding
2012-11-21 13:32 ` Tomi Valkeinen
2012-11-21 15:02 ` Alexandre Courbot
2012-11-21 15:12 ` Thierry Reding
2012-11-22 2:01 ` Alexandre Courbot
2012-11-22 2:06 ` Mark Brown
2012-11-22 3:09 ` Alexandre Courbot
2012-11-22 13:39 ` Grant Likely
2012-11-27 15:19 ` Laurent Pinchart
2012-11-27 15:08 ` Laurent Pinchart
2012-11-27 15:19 ` Tomi Valkeinen
2012-11-27 15:37 ` Laurent Pinchart
2012-11-27 16:46 ` Mark Brown [this message]
2012-11-27 14:47 ` Laurent Pinchart
2012-11-22 13:39 ` Grant Likely
2012-11-22 21:40 ` Thierry Reding
2012-11-26 11:49 ` Alex Courbot
2012-11-26 15:34 ` Grant Likely
2012-11-17 10:55 ` [PATCHv9 2/3] pwm_backlight: use power sequences Alexandre Courbot
2012-11-17 10:55 ` [PATCHv9 3/3] Take maintainership of " Alexandre Courbot
2012-11-20 21:58 ` [PATCHv9 0/3] Runtime Interpreted Power Sequences Grant Likely
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