9baca41064
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: 1e25423be8 ("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>
98 lines
2.1 KiB
Text
98 lines
2.1 KiB
Text
// SPDX-License-Identifier: GPL-2.0-only
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#include "qcom-ipq8064.dtsi"
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/ {
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model = "Qualcomm IPQ8062";
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compatible = "qcom,ipq8062", "qcom,ipq8064";
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aliases {
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serial0 = &gsbi4_serial;
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};
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chosen {
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stdout-path = "serial0:115200n8";
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};
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reserved-memory {
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#address-cells = <1>;
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#size-cells = <1>;
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ranges;
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rsvd@41200000 {
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reg = <0x41200000 0x300000>;
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no-map;
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};
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};
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};
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&gsbi4 {
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qcom,mode = <GSBI_PROT_I2C_UART>;
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status = "okay";
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serial@16340000 {
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status = "okay";
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};
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/*
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* The i2c device on gsbi4 should not be enabled.
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* On ipq806x designs gsbi4 i2c is meant for exclusive
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* RPM usage. Turning this on in kernel manifests as
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* i2c failure for the RPM.
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*/
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};
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&opp_table0 {
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/delete-node/opp-1200000000;
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/delete-node/opp-1400000000;
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/*
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* Voltage thresholds are <target min max>
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*/
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opp-384000000 {
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opp-microvolt-speed0-pvs0-v0 = <950000 902500 997500>;
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opp-microvolt-speed0-pvs1-v0 = <900000 855000 945000>;
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opp-microvolt-speed0-pvs2-v0 = <850000 807500 892500>;
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opp-microvolt-speed0-pvs3-v0 = <800000 760000 840000>;
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};
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opp-600000000 {
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opp-microvolt-speed0-pvs0-v0 = <1000000 950000 1050000>;
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opp-microvolt-speed0-pvs1-v0 = <950000 945000 955000>;
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opp-microvolt-speed0-pvs2-v0 = <900000 895000 905000>;
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opp-microvolt-speed0-pvs3-v0 = <850000 845000 855000>;
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};
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opp-800000000 {
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opp-microvolt-speed0-pvs0-v0 = <1050000 997500 1102500>;
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opp-microvolt-speed0-pvs1-v0 = <1000000 995000 1005000>;
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opp-microvolt-speed0-pvs2-v0 = <950000 945000 955000>;
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opp-microvolt-speed0-pvs3-v0 = <900000 895000 905000>;
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};
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opp-1000000000 {
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opp-microvolt-speed0-pvs0-v0 = <1100000 1045000 1155000>;
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opp-microvolt-speed0-pvs1-v0 = <1050000 997500 1102500>;
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opp-microvolt-speed0-pvs2-v0 = <1000000 995000 1005000>;
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opp-microvolt-speed0-pvs3-v0 = <950000 945000 955000>;
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};
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};
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&pcie0 {
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compatible = "qcom,pcie-ipq8064-v2";
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};
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&pcie1 {
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compatible = "qcom,pcie-ipq8064-v2";
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};
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&pcie2 {
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compatible = "qcom,pcie-ipq8064-v2";
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};
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&smb208_s2a {
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regulator-max-microvolt = <1150000>;
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};
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&smb208_s2b {
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regulator-max-microvolt = <1150000>;
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};
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