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Subject[RFC PATCH v2 14/17] ARM: dts: tegra30: apalis: 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-apalis.dtsi | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/tegra30-apalis.dtsi b/arch/arm/boot/dts/tegra30-apalis.dtsi
index 7f112f192fe9..1ca9bec8380f 100644
--- a/arch/arm/boot/dts/tegra30-apalis.dtsi
+++ b/arch/arm/boot/dts/tegra30-apalis.dtsi
@@ -890,8 +890,11 @@

vddctrl_reg: vddctrl {
regulator-name = "+V1.0_VDD_CPU";
- regulator-min-microvolt = <1150000>;
- regulator-max-microvolt = <1150000>;
+ 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;
};

@@ -1013,13 +1016,16 @@
};

/* SW: +V1.2_VDD_CORE */
- regulator@60 {
+ core_vdd_reg: regulator@60 {
compatible = "ti,tps62362";
reg = <0x60>;

regulator-name = "tps62362-vout";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1400000>;
+ regulator-coupled-with = <&vddctrl_reg>;
+ regulator-coupled-max-spread = <300000>;
+ regulator-max-step-microvolt = <100000>;
regulator-boot-on;
regulator-always-on;
ti,vsel0-state-low;
@@ -1168,4 +1174,11 @@
<&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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