Hi, Am Freitag, 1. März 2019, 18:54:53 CET schrieb Leonidas P. Papadakos: > This allows for greater max frequency on rk3328 boards, > increasing performance. > > It has been included in Armbian (a linux distibution for ARM boards) > for a while now without any reported issues > > https://github.com/armbian/build/blob/master/patch/kernel/rockchip64-default/enable-1392mhz-opp.patch > https://github.com/armbian/build/blob/master/patch/kernel/rockchip64-default/enable-1512mhz-opp.patch > > Cc: Heiko Stuebner <heiko@xxxxxxxxx> > Cc: linux-rockchip@xxxxxxxxxxxxxxxxxxx > Signed-off-by: Leonidas P. Papadakos <papadakospan@xxxxxxxxx> > --- > arch/arm64/boot/dts/rockchip/rk3328.dtsi | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi > index 84f14b132..18caef3c3 100644 > --- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi > +++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi > @@ -123,6 +123,20 @@ > opp-microvolt = <1300000>; > clock-latency-ns = <40000>; > }; > + opp-1392000000 { > + opp-hz = /bits/ 64 <1392000000>; > + opp-microvolt = <1350000 1350000 1350000>; > + opp-microvolt-L0 = <1350000 1350000 1350000>; > + opp-microvolt-L1 = <1325000 1325000 1325000>; I checked Rockchip's productpage and the chip really seems to be rated up to 1.5GHz, but you should get rid of opp-microvolt-Lx options as these are still vendor-specific regarding the leakage handling. While on it, when all microvolt elements are the same, using the absolute value instead of "preferred min max" saves a bit of space similar to the other OPPs in the file. Thanks Heiko > + clock-latency-ns = <40000>; > + }; > + opp-1512000000 { > + opp-hz = /bits/ 64 <1512000000>; > + opp-microvolt = <1450000 1450000 1450000>; > + opp-microvolt-L0 = <1450000 1450000 1450000>; > + opp-microvolt-L1 = <1425000 1425000 1425000>; > + clock-latency-ns = <40000>; > + }; > }; > > amba { > _______________________________________________ Linux-rockchip mailing list Linux-rockchip@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-rockchip
