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Subject[RFC PATCH v2 15/17] ARM: dts: tegra30: beaver: Setup voltage regulators for DVFS
Date
Set min/max regulators voltage and add CPU node that hooks up CPU with
voltage regulators.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
arch/arm/boot/dts/tegra30-beaver.dts | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/tegra30-beaver.dts b/arch/arm/boot/dts/tegra30-beaver.dts
index b0d40ac8ac6e..39941489d005 100644
--- a/arch/arm/boot/dts/tegra30-beaver.dts
+++ b/arch/arm/boot/dts/tegra30-beaver.dts
@@ -1806,8 +1806,11 @@

vddctrl_reg: vddctrl {
regulator-name = "vdd_cpu,vdd_sys";
- regulator-min-microvolt = <1000000>;
- regulator-max-microvolt = <1000000>;
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1250000>;
+ regulator-coupled-with = <&core_vdd_reg>;
+ regulator-coupled-max-spread = <300000>;
+ regulator-max-step-microvolt = <100000>;
regulator-always-on;
};

@@ -1868,13 +1871,16 @@
};
};

- tps62361@60 {
+ core_vdd_reg: tps62361@60 {
compatible = "ti,tps62361";
reg = <0x60>;

regulator-name = "tps62361-vout";
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <1500000>;
+ regulator-coupled-with = <&vddctrl_reg>;
+ regulator-coupled-max-spread = <300000>;
+ regulator-max-step-microvolt = <100000>;
regulator-boot-on;
regulator-always-on;
ti,vsel0-state-high;
@@ -2114,4 +2120,11 @@
<&tegra_car TEGRA30_CLK_EXTERN1>;
clock-names = "pll_a", "pll_a_out0", "mclk";
};
+
+ cpus {
+ cpu0: cpu@0 {
+ cpu-supply = <&vddctrl_reg>;
+ core-supply = <&core_vdd_reg>;
+ };
+ };
};
--
2.19.0
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