Re: [PATCH v3 30/30] ARM: sun8i: a83t: full range OPP tables and CPUfreq
From: 'Ondřej Jirman' via linux-sunxi <hidden>
Date: 2018-08-30 16:38:38
Also in:
linux-arm-kernel, linux-iio, lkml
Hello, On Thu, Aug 30, 2018 at 05:45:18PM +0200, Philipp Rossak wrote:
Since we have now thermal trotteling enabeled we can now add the full range of the OPP table.
I'm not sure we can. I have a tablet with A83T SoC and it gets unstable at these frequencies even with thermal throttling on mainline kernel. (Though I have my own THS driver, but I doubt a different driver will change much.) There might be some other issue left in the cpufreq code. I'll let others test this on a better cooled boards though. Did you/someone test this? regards, o.
quoted hunk ↗ jump to hunk
The operating points were found in Allwinner BSP and fex files. Signed-off-by: Philipp Rossak <redacted> --- arch/arm/boot/dts/sun8i-a83t.dtsi | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+)diff --git a/arch/arm/boot/dts/sun8i-a83t.dtsi b/arch/arm/boot/dts/sun8i-a83t.dtsi index 78aa448e869f..ddcf404f9c80 100644 --- a/arch/arm/boot/dts/sun8i-a83t.dtsi +++ b/arch/arm/boot/dts/sun8i-a83t.dtsi@@ -250,6 +250,22 @@ opp-microvolt = <840000>; clock-latency-ns = <244144>; /* 8 32k periods */ }; + + opp-1608000000 { + opp-hz = /bits/ 64 <1608000000>; + opp-microvolt = <920000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + opp-1800000000 { /* BOOT FREQ */ + opp-hz = /bits/ 64 <1800000000>; + opp-microvolt = <1000000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + opp-2016000000 { + opp-hz = /bits/ 64 <2016000000>; + opp-microvolt = <1080000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; }; cpu1_opp_table: opp_table1 {@@ -303,6 +319,22 @@ opp-microvolt = <840000>; clock-latency-ns = <244144>; /* 8 32k periods */ }; + + opp-1608000000 { + opp-hz = /bits/ 64 <1608000000>; + opp-microvolt = <920000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + opp-1800000000 { /* BOOT FREQ */ + opp-hz = /bits/ 64 <1800000000>; + opp-microvolt = <1000000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + opp-2016000000 { + opp-hz = /bits/ 64 <2016000000>; + opp-microvolt = <1080000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; }; soc {-- 2.11.0 -- 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 linux-sunxi+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit https://groups.google.com/d/optout.