On Fri, Dec 16, 2016 at 02:27:54AM +0800, Icenowy Zheng wrote: > An operating point table is needed for the cpu frequency adjusting to > work. > > The operating point table is converted from the common value in > extracted script.fex from many A33 board/tablets. > > Signed-off-by: Icenowy Zheng <icenowy@xxxxxxxx> > --- > Changes since v1: > - Fix format problem (blank lines). > - Removed the 1.344GHz operating point, as it's overvoltage and overclocked. > > This patch depends on the following patchset: > > http://lists.infradead.org/pipermail/linux-arm-kernel/2016-December/473962.html > > It's the v2 of the [PATCH 4/6] in this patchset. > > I think this operating point table may also apply to A23, as there's no > difference except the points over 1.2GHz between A23 and A33's stock dvfs table. > > But as A23 CCU may not have the necessary fixes, I won't add the table to A23 > now. > > Chen-Yu, could you test the CCU fixes I described in the patchset above on A23, > then test this operating points table? > > If it's necessary, you can send out the CCU fixes and add one more patch that > moves this opp-v2 table to sun8i-a23-a33.dtsi . > > arch/arm/boot/dts/sun8i-a33.dtsi | 35 +++++++++++++++++++++++++++++++++++ > 1 file changed, 35 insertions(+) > > diff --git a/arch/arm/boot/dts/sun8i-a33.dtsi b/arch/arm/boot/dts/sun8i-a33.dtsi > index 504996cbee29..0f5b2af72981 100644 > --- a/arch/arm/boot/dts/sun8i-a33.dtsi > +++ b/arch/arm/boot/dts/sun8i-a33.dtsi > @@ -46,7 +46,42 @@ > #include <dt-bindings/dma/sun4i-a10.h> > > / { > + cpu0_opp_table: opp_table0 { > + compatible = "operating-points-v2"; > + opp-shared; > + > + opp@648000000 { > + opp-hz = /bits/ 64 <648000000>; > + opp-microvolt = <1040000>; > + clock-latency-ns = <244144>; /* 8 32k periods */ > + }; > + > + opp@816000000 { > + opp-hz = /bits/ 64 <816000000>; > + opp-microvolt = <1100000>; > + clock-latency-ns = <244144>; /* 8 32k periods */ > + }; > + > + opp@1008000000 { > + opp-hz = /bits/ 64 <1008000000>; > + opp-microvolt = <1200000>; > + clock-latency-ns = <244144>; /* 8 32k periods */ > + }; > + > + opp@1200000000 { > + opp-hz = /bits/ 64 <1200000000>; > + opp-microvolt = <1320000>; > + clock-latency-ns = <244144>; /* 8 32k periods */ > + }; > + }; > + > cpus { > + cpu0: cpu@0 { There's no need to duplicate the label here. I removed it and applied. Thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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