Hi Xing,Thank you for your comments. :-)
Am Freitag, 8. Januar 2016, 19:31:38 schrieb Xing Zheng:
Actually, we need more cpu freqs which are 50MHz integer multiples.what about reducing the voltage as well?
Signed-off-by: Xing Zheng <zhengxing@xxxxxxxxxxxxxx>
---
arch/arm/boot/dts/rk3036.dtsi | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/rk3036.dtsi b/arch/arm/boot/dts/rk3036.dtsi
index 1cb5877..1a773eb 100644
--- a/arch/arm/boot/dts/rk3036.dtsi
+++ b/arch/arm/boot/dts/rk3036.dtsi
@@ -79,7 +79,18 @@
resets = <&cru SRST_CORE0>;
operating-points = <
/* KHz uV */
- 816000 1000000
+ 1200000 1200000
+ 1100000 1200000
+ 1000000 1200000
+ 900000 1200000
+ 800000 1200000
+ 700000 1200000
+ 600000 1200000
+ 500000 1200000
+ 400000 1200000
+ 300000 1200000
+ 200000 1200000
+ 100000 1200000
>From rk3288-specific discussions I remember that reducing the frequency
without touching the voltage, didn't really save so much energy.
And it looks like it was running 816MHz@xxxx just fine as well.
I guess you should find out which voltages are really necessary for each
step.
Heiko