lkml.org 
[lkml]   [2018]   [Oct]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RFC PATCH v2 09/17] ARM: dts: tegra20: harmony: 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/tegra20-harmony.dts | 31 +++++++++++++++++++--------
1 file changed, 22 insertions(+), 9 deletions(-)

diff --git a/arch/arm/boot/dts/tegra20-harmony.dts b/arch/arm/boot/dts/tegra20-harmony.dts
index 1d96d92b72a7..9d720743fd4e 100644
--- a/arch/arm/boot/dts/tegra20-harmony.dts
+++ b/arch/arm/boot/dts/tegra20-harmony.dts
@@ -339,17 +339,19 @@
regulator-always-on;
};

- sm0 {
+ core_vdd_reg: sm0 {
regulator-name = "vdd_sm0,vdd_core";
- regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <1200000>;
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-coupled-with = <&rtc_vdd_reg>;
+ regulator-coupled-max-spread = <150000>;
regulator-always-on;
};

- sm1 {
+ cpu_vdd_reg: sm1 {
regulator-name = "vdd_sm1,vdd_cpu";
- regulator-min-microvolt = <1000000>;
- regulator-max-microvolt = <1000000>;
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <1125000>;
regulator-always-on;
};

@@ -373,10 +375,13 @@
regulator-always-on;
};

- ldo2 {
+ rtc_vdd_reg: 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 = <&core_vdd_reg>;
+ regulator-coupled-max-spread = <150000>;
+ regulator-always-on;
};

ldo3 {
@@ -779,4 +784,12 @@
<&tegra_car TEGRA20_CLK_CDEV1>;
clock-names = "pll_a", "pll_a_out0", "mclk";
};
+
+ cpus {
+ cpu0: cpu@0 {
+ cpu-supply = <&cpu_vdd_reg>;
+ core-supply = <&core_vdd_reg>;
+ rtc-supply = <&rtc_vdd_reg>;
+ };
+ };
};
--
2.19.0
\
 
 \ /
  Last update: 2018-10-21 22:59    [W:0.778 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site