[PATCH v1 01/13] ARM: tegra: ventana: Support CPU and Core voltage scaling
From: Dmitry Osipenko <digetx@gmail.com>
Date: 2021-01-21 18:28:56
Also in:
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Subsystem:
the rest · Maintainer:
Linus Torvalds
Support CPU and Core voltage scaling on Tegra20 Ventana board. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- arch/arm/boot/dts/tegra20-ventana.dts | 37 ++++++++++++++++++++------- 1 file changed, 28 insertions(+), 9 deletions(-)
diff --git a/arch/arm/boot/dts/tegra20-ventana.dts b/arch/arm/boot/dts/tegra20-ventana.dts
index 055334ae3d28..02b94ed722d0 100644
--- a/arch/arm/boot/dts/tegra20-ventana.dts
+++ b/arch/arm/boot/dts/tegra20-ventana.dts@@ -4,6 +4,7 @@ #include <dt-bindings/input/input.h> #include "tegra20.dtsi" #include "tegra20-cpu-opp.dtsi" +#include "tegra20-cpu-opp-microvolt.dtsi" / { model = "NVIDIA Tegra20 Ventana evaluation board";
@@ -420,18 +421,28 @@ sys_reg: sys { regulator-always-on; }; - sm0 { + 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 +461,16 @@ 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 {
@@ -595,10 +612,12 @@ clk32k_in: clock@0 { cpus { cpu0: cpu@0 { + cpu-supply = <&vdd_cpu>; operating-points-v2 = <&cpu0_opp_table>; }; cpu@1 { + cpu-supply = <&vdd_cpu>; operating-points-v2 = <&cpu0_opp_table>; }; };
--
2.29.2