On Mon, Apr 10, 2017 at 04:43:00PM +0800, icen...@aosc.io wrote: > 在 2017-04-10 14:59，Maxime Ripard 写道： > > On Mon, Apr 10, 2017 at 12:19:41AM +0800, Icenowy Zheng wrote: > > > According to the researching result of Ondrej Jirman, the factor M of > > > PLL1 shouldn't be used and the factor P should be used only if the > > > intended frequency is lower than 288MHz. This is proven by the > > > clk-sun8iw7_tbl.c in the BSP source code -- in there the M value is > > > always 0 and the maximum frequency that P is not 0 is 224MHz. > > > > > > As P is ignored on sun6i, it's not currently used. This patch removed > > > the usage of M. > > > > > > This patch is an original work by Ondrej Jirman, however, he didn't > > > add > > > a Signed-off-by tag here to his commit. So I take this code and > > > added my > > > Signed-off-by. > > > > > > Signed-off-by: Icenowy Zheng <icen...@aosc.io> > > > --- > > > > > > This is a critical patch, and should be added to 2017.05. > > > > > > It has been verified by the Armbian. > > > > This doesn't mean anything. How has this been verified? > > Armbian has included this patch since several months ago, > and it's proven that without it DVFS will be not stable. > (And it proved at least it won't make the system more > unstable). See [1].
Then, this should have been your commit log. Thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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