linux-kernel - Re: [PATCH 15/20] leds: mark ot200 driver with LED_BRIGHTNESS

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Message-ID: <CAH9NwWfrixFNiObPv17or0NwGeayq56+bG1JZp8gf-mMOZJZSQ@mail.gmail.com>
Date:	Tue, 26 May 2015 11:16:38 +0200
From:	Christian Gmeiner <christian.gmeiner@...il.com>
To:	Stas Sergeev <stsp@...t.ru>
Cc:	linux-leds@...r.kernel.org,
	Linux kernel <linux-kernel@...r.kernel.org>,
	Stas Sergeev <stsp@...rs.sourceforge.net>,
	Bryan Wu <cooloney@...il.com>,
	Richard Purdie <rpurdie@...ys.net>,
	Jacek Anaszewski <j.anaszewski@...sung.com>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: Re: [PATCH 15/20] leds: mark ot200 driver with LED_BRIGHTNESS_FAST flag

>
> This driver doesn't use sleeping operations in .brightness_set
> method, and can be marked with LED_BRIGHTNESS_FAST flag.
> That flag allows changing brightness at high rates (over 100Hz).
>
> CC: Bryan Wu <cooloney@...il.com>
> CC: Richard Purdie <rpurdie@...ys.net>
> CC: Jacek Anaszewski <j.anaszewski@...sung.com>
> CC: linux-leds@...r.kernel.org
> CC: linux-kernel@...r.kernel.org
> CC: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
> CC: Christian Gmeiner <christian.gmeiner@...il.com>
>
> Signed-off-by: Stas Sergeev <stsp@...rs.sourceforge.net>
> ---
>  drivers/leds/leds-ot200.c |    1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/leds/leds-ot200.c b/drivers/leds/leds-ot200.c
> index 39870de..d357c14 100644
> --- a/drivers/leds/leds-ot200.c
> +++ b/drivers/leds/leds-ot200.c
> @@ -123,6 +123,7 @@ static int ot200_led_probe(struct platform_device *pdev)
>
>                 leds[i].cdev.name = leds[i].name;
>                 leds[i].cdev.brightness_set = ot200_led_brightness_set;
> +               leds[i].cdev.flags |= LED_BRIGHTNESS_FAST;
>
>                 ret = led_classdev_register(&pdev->dev, &leds[i].cdev);
>                 if (ret < 0)
> --
> 1.7.9.5

Reviewed-by: Christian Gmeiner <christian.gmeiner@...il.com>
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