Re: [PATCH/RFC v5 02/57] leds: Add LED_BRIGHTNESS_BLOCKING flag

From: Andrew Lunn
Date: Thu Aug 13 2015 - 10:12:39 EST


On Tue, Aug 11, 2015 at 11:37:15AM +0200, Jacek Anaszewski wrote:
> This patch adds LED_BRIGHTNESS_BLOCKING flag to the LED core to make it
> capable of discerning between drivers that implement brightness_set op
> in the old manner, i.e. the ones which use work queue internally, and
> drivers that implement brightness_set op in the new manner, i.e. they
> are aware that brightness_set op will be called from a work queue task
> by the LED core.
> In the new approach all drivers that implement brightness_set op should
> also set LED_BRIGHTNESS_BLOCKING flag.

Hi Jacek

Why have the drivers set this flag? The core code can look at the two
ops function pointers and figure it out for itself.

Andrew
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