From a60e68f98fbd2826ebc468fd3a3ce40be6ad29a6 Mon Sep 17 00:00:00 2001 From: Dmitry Osipenko Date: Fri, 25 Oct 2019 01:14:12 +0300 Subject: [PATCH] ARM: tegra: paz00: Set up voltage regulators for DVFS Set minimum and maximum voltages, and couple CPU/CORE/RTC regulators. Tested-by: Nicolas Chauvet Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding --- arch/arm/boot/dts/tegra20-paz00.dts | 27 ++++++++++++++++++++------- 1 file 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 @@ sys_reg: sys { 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 @@ ldo1 { 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 { -- 2.45.2