Allow lower core voltages on Ventana board.
Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
---
arch/arm/boot/dts/tegra20-ventana.dts | 32 ++++++++++++++++++++-------
1 file changed, 24 insertions(+), 8 deletions(-)
diff --git a/arch/arm/boot/dts/tegra20-ventana.dts b/arch/arm/boot/dts/tegra20-ventana.dts
index 0b03b3b0fd0c..14ace2ef749c 100644
--- a/arch/arm/boot/dts/tegra20-ventana.dts
+++ b/arch/arm/boot/dts/tegra20-ventana.dts
@@ -422,16 +422,26 @@ sys_reg: sys {
vdd_core: sm0 {
regulator-name = "vdd_sm0,vdd_core";
- regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <1200000>;
+ regulator-min-microvolt = <950000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-coupled-with = <&rtc_vdd &vdd_cpu>;
+ regulator-coupled-max-spread = <170000 550000>;
regulator-always-on;
+ regulator-boot-on;
+
+ nvidia,tegra-core-regulator;
};
- sm1 {
+ vdd_cpu: sm1 {
regulator-name = "vdd_sm1,vdd_cpu";
- regulator-min-microvolt = <1000000>;
- regulator-max-microvolt = <1000000>;
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <1125000>;
+ regulator-coupled-with = <&vdd_core &rtc_vdd>;
+ regulator-coupled-max-spread = <550000 550000>;
regulator-always-on;
+ regulator-boot-on;
+
+ nvidia,tegra-cpu-regulator;
};
sm2_reg: sm2 {
@@ -450,10 +460,16 @@ ldo1 {
regulator-always-on;
};
- ldo2 {
+ rtc_vdd: ldo2 {
regulator-name = "vdd_ldo2,vdd_rtc";
- regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <1200000>;
+ regulator-min-microvolt = <950000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-coupled-with = <&vdd_core &vdd_cpu>;
+ regulator-coupled-max-spread = <170000 550000>;
+ regulator-always-on;
+ regulator-boot-on;
+
+ nvidia,tegra-rtc-regulator;
};
ldo3 {
--
2.29.2
