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authorDmitry Osipenko <digetx@gmail.com>2019-10-25 01:14:12 +0300
committerThierry Reding <treding@nvidia.com>2019-10-29 22:29:17 +0300
commita60e68f98fbd2826ebc468fd3a3ce40be6ad29a6 (patch)
tree833e2fc5ac53f4e4bb06a4a384e9f6b7a6df15f6 /arch/arm/boot/dts/tegra20-paz00.dts
parent875cf30a534ef5b42f11db4925b6429e3bf55a2c (diff)
downloadlinux-a60e68f98fbd2826ebc468fd3a3ce40be6ad29a6.tar.xz
ARM: tegra: paz00: Set up voltage regulators for DVFS
Set minimum and maximum voltages, and couple CPU/CORE/RTC regulators. Tested-by: Nicolas Chauvet <kwizart@gmail.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'arch/arm/boot/dts/tegra20-paz00.dts')
-rw-r--r--arch/arm/boot/dts/tegra20-paz00.dts27
1 files changed, 20 insertions, 7 deletions
diff --git a/arch/arm/boot/dts/tegra20-paz00.dts b/arch/arm/boot/dts/tegra20-paz00.dts
index 8861e0976e37..6e9fe192c648 100644
--- a/arch/arm/boot/dts/tegra20-paz00.dts
+++ b/arch/arm/boot/dts/tegra20-paz00.dts
@@ -337,18 +337,26 @@
regulator-always-on;
};
- sm0 {
+ core_vdd_reg: sm0 {
regulator-name = "+1.2vs_sm0,vdd_core";
regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <1200000>;
+ regulator-max-microvolt = <1225000>;
+ regulator-coupled-with = <&rtc_vdd_reg &cpu_vdd_reg>;
+ regulator-coupled-max-spread = <170000 450000>;
regulator-always-on;
+
+ nvidia,tegra-core-regulator;
};
- sm1 {
+ cpu_vdd_reg: sm1 {
regulator-name = "+1.0vs_sm1,vdd_cpu";
- regulator-min-microvolt = <1000000>;
- regulator-max-microvolt = <1000000>;
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-coupled-with = <&core_vdd_reg &rtc_vdd_reg>;
+ regulator-coupled-max-spread = <450000 450000>;
regulator-always-on;
+
+ nvidia,tegra-cpu-regulator;
};
sm2_reg: sm2 {
@@ -367,10 +375,15 @@
regulator-always-on;
};
- ldo2 {
+ rtc_vdd_reg: ldo2 {
regulator-name = "+1.2vs_ldo2,vdd_rtc";
regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <1200000>;
+ regulator-max-microvolt = <1225000>;
+ regulator-coupled-with = <&core_vdd_reg &cpu_vdd_reg>;
+ regulator-coupled-max-spread = <170000 450000>;
+ regulator-always-on;
+
+ nvidia,tegra-rtc-regulator;
};
ldo3 {