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| author | Shane Synan <digitalcircuit36939@gmail.com> | 2021-08-19 14:22:48 -0400 |
|---|---|---|
| committer | Adrian Schmutzler <freifunk@adrianschmutzler.de> | 2021-08-21 23:54:31 +0200 |
| commit | 9baca410644b3f0fe94e2d5b6558c9c4bf61e712 (patch) | |
| tree | 74e5334746343fd6f113a15022f463143882ba2e /target/linux/ipq806x/patches-5.10/851-add-gsbi1-dts.patch | |
| parent | c23bc5032f7deb3615d4e8bddf37934f8252ab3e (diff) | |
| download | upstream-9baca410644b3f0fe94e2d5b6558c9c4bf61e712.tar.gz upstream-9baca410644b3f0fe94e2d5b6558c9c4bf61e712.tar.bz2 upstream-9baca410644b3f0fe94e2d5b6558c9c4bf61e712.zip | |
ipq806x: fix min<>target opp-microvolt DTS mixup
Rearrange all voltage triplets for "opp_table0" to match the
specifications. "opp-microvolt" and "opp-microvolt-<name>" triplets
are in order of <target min max>, and NOT <min target max>.
Previously, the CPU would *always* spend its time at the "minimum"
voltage, ignoring the actual intended target. This is a regression
from previous behavior.
On an NBG6817 with a Qualcomm CPU of PVS bin #2...
(see &opp_table0 -> opp-1725000000 -> opp-microvolt-speed0-pvs2-v0)
* Before:
/usr/bin/tail -n +1 /sys/kernel/debug/opp/cpu0/opp\:1725000000/supply-0/u_volt_*
==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_max <==
1260000
==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_min <==
1200000
==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_target <==
1140000
* After:
/usr/bin/tail -n +1 /sys/kernel/debug/opp/cpu0/opp\:1725000000/supply-0/u_volt_*
==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_max <==
1260000
==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_min <==
1140000
==> /sys/kernel/debug/opp/cpu0/opp:1725000000/supply-0/u_volt_target <==
1200000
To check voltages and frequencies at run time, use...
/bin/cat /sys/kernel/debug/regulator/regulator_summary &&
/bin/cat /sys/kernel/debug/clk/clk_summary | grep "hfpll"
See
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/Documentation/devicetree/bindings/opp/opp.txt?h=v5.4.142#n91
Fixes: 1e25423be8ac ("ipq806x: refresh dtsi patches")
Signed-off-by: Shane Synan <digitalcircuit36939@gmail.com>
Reviewed-by: Ansuel Smith <ansuelsmth@gmail.com>
[commit message style cleanup, another kernel refresh]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Diffstat (limited to 'target/linux/ipq806x/patches-5.10/851-add-gsbi1-dts.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-5.10/851-add-gsbi1-dts.patch | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/target/linux/ipq806x/patches-5.10/851-add-gsbi1-dts.patch b/target/linux/ipq806x/patches-5.10/851-add-gsbi1-dts.patch index 3a83b2de30..e6ee9a93fc 100644 --- a/target/linux/ipq806x/patches-5.10/851-add-gsbi1-dts.patch +++ b/target/linux/ipq806x/patches-5.10/851-add-gsbi1-dts.patch @@ -1,6 +1,6 @@ --- a/arch/arm/boot/dts/qcom-ipq8064.dtsi +++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi -@@ -747,6 +747,41 @@ +@@ -750,6 +750,41 @@ reg = <0x12100000 0x10000>; }; |