linux-kernel - Re: [PATCH v3 2/5] dt-bindings: pwm-backlight: add PWM delay proprieties.

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Message-ID: <20170720080428.GB13103@amd>
Date:   Thu, 20 Jul 2017 10:04:28 +0200
From:   Pavel Machek <pavel@....cz>
To:     Enric Balletbo i Serra <enric.balletbo@...labora.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Lee Jones <lee.jones@...aro.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Rob Herring <robh+dt@...nel.org>,
        Richard Purdie <rpurdie@...ys.net>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Heiko Stuebner <heiko@...ech.de>, linux-pwm@...r.kernel.org,
        linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        groeck@...omium.org, linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH v3 2/5] dt-bindings: pwm-backlight: add PWM delay
 proprieties.

On Mon 2017-07-17 23:28:08, Enric Balletbo i Serra wrote:
> Hardware needs a delay between setting an initial (non-zero) PWM and
> enabling the backlight using GPIO. The post-pwm-on-delay-us specifies
> this delay in micro seconds. Hardware also needs a delay between disabing
> the backlight using GPIO and setting PWM value to 0. The pwm-off-delay-us
> is this delay in micro seconds.
> 
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>

Acked-by: Pavel Machek <pavel@....cz>

-- 
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