linux-kernel - Re: [PATCH v2 1/2] leds-lm3530: set the value of max

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Message-ID: <CACRpkdZN2GAnntROEC2iOaz7NYsipUiuFAq3v_bKgJEAjOJm+A@mail.gmail.com>
Date:	Thu, 26 Jan 2012 12:53:45 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	"Kim, Milo" <Milo.Kim@...com>
Cc:	Lars-Peter Clausen <lars@...afoo.de>,
	"shreshthakumar.sahu@...ricsson.com" 
	<shreshthakumar.sahu@...ricsson.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"rpurdie@...ys.net" <rpurdie@...ys.net>
Subject: Re: [PATCH v2 1/2] leds-lm3530: set the value of max_brightness to 127

On Wed, Jan 25, 2012 at 10:40 AM, Kim, Milo <Milo.Kim@...com> wrote:

> Only 7 bits are used for the brightness. (register address : A0h)
> So the max_brightness property of lm3530 should be set to 127.
>
> On initializing registers, maximum initial brightness is limited to 'max_brightness'.
>
> Division-by-two is removed on updating the value of brightness.
> This arithmetic is not necessary because the range of brightness is 0 ~ 127.
>
> Signed-off-by: Milo(Woogyom) Kim <milo.kim@...com>

Acked-by: Linus Walleij <linus.walleij@...aro.org>

On *this* exact patch.

Yours,
Linus Walleij
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