Hi, On Sat, Jul 9, 2016 at 4:18 PM, Maxime Ripard <[email protected]> wrote: > Hi, > > On Wed, Jul 06, 2016 at 05:10:49PM +0800, Chen-Yu Tsai wrote: >> The Bananapi M1+, like other Allwinner A20 based boards, uses the AXP209 >> PMIC to supply its power. The vendor FEX file's DVFS table suggests the >> board's CPU power rail has a voltage drop of 25 ~ 50 mV. >> >> Add the PMIC regulator nodes and copy the DVFS table from the FEX file. >> >> Signed-off-by: Chen-Yu Tsai <[email protected]> >> --- >> arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts | 48 >> ++++++++++++++++++++++-- >> 1 file changed, 44 insertions(+), 4 deletions(-) >> >> diff --git a/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts >> b/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts >> index ba5bca0fe997..7bb418bd1b6e 100644 >> --- a/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts >> +++ b/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts >> @@ -105,6 +105,22 @@ >> status = "okay"; >> }; >> >> +&cpu0 { >> + cpu-supply = <®_dcdc2>; >> + >> + /* The custom DVFS table suggests a voltage drop of 25 ~ 50 mV */ >> + operating-points = < >> + /* kHz uV */ >> + 1080000 1450000 >> + 912000 1425000 >> + 864000 1350000 >> + 720000 1250000 >> + 528000 1150000 >> + 312000 1100000 >> + 144000 1050000 >> + >; >> +}; >> + > > We've always tried to not use all the non-sense OPPs coming from the > FEX files. Have you experienced any issues with the default ones?
I'll find some time to run a stress test on it. > The other patches have been queued either for 4.8 as fixes, or 4.9. Thanks! ChenYu > > Thanks! > Maxime > > -- > Maxime Ripard, Free Electrons > Embedded Linux and Kernel engineering > http://free-electrons.com -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
