linux-kernel - Re: [PATCH 4/4] drm/sun4i: dotclock: Round to closest clock rate

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Message-ID: <20160920071948.GB8719@lukather>
Date:   Tue, 20 Sep 2016 09:19:48 +0200
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Chen-Yu Tsai <wens@...e.org>
Cc:     David Airlie <airlied@...ux.ie>, dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/4] drm/sun4i: dotclock: Round to closest clock rate

On Thu, Sep 15, 2016 at 11:14:02PM +0800, Chen-Yu Tsai wrote:
> With display pixel clocks we want to have the closest possible clock
> rate, to minimize timing and refresh rate skews. Whether the actual
> clock rate is higher or lower than the requested rate is less important.
> 
> Also check candidates against the requested rate, rather than the
> ideal parent rate, the varying dividers also influence the difference
> between the requested rate and the rounded rate.
> 
> Signed-off-by: Chen-Yu Tsai <wens@...e.org>

Applied, thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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