lkml.org 
[lkml]   [2020]   [Dec]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v2 48/48] ARM: tegra: cardhu: Support CPU voltage scaling and thermal throttling
    Date
    Enable CPU voltage scaling and thermal throttling on Tegra30 Cardhu board.

    Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
    ---
    arch/arm/boot/dts/tegra30-cardhu.dtsi | 61 ++++++++++++++++++++++++++-
    1 file changed, 60 insertions(+), 1 deletion(-)

    diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi
    index d74c9ca78a7f..08c0ea4e6228 100644
    --- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
    +++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
    @@ -1,6 +1,9 @@
    // SPDX-License-Identifier: GPL-2.0
    #include <dt-bindings/input/input.h>
    +#include <dt-bindings/thermal/thermal.h>
    #include "tegra30.dtsi"
    +#include "tegra30-cpu-opp.dtsi"
    +#include "tegra30-cpu-opp-microvolt.dtsi"

    /**
    * This file contains common DT entry for all fab version of Cardhu.
    @@ -339,12 +342,13 @@ ldo8_reg: ldo8 {
    };
    };

    - temperature-sensor@4c {
    + nct1008: temperature-sensor@4c {
    compatible = "onnn,nct1008";
    reg = <0x4c>;
    vcc-supply = <&sys_3v3_reg>;
    interrupt-parent = <&gpio>;
    interrupts = <TEGRA_GPIO(CC, 2) IRQ_TYPE_LEVEL_LOW>;
    + #thermal-sensor-cells = <1>;
    };

    vdd_core: tps62361@60 {
    @@ -438,6 +442,29 @@ clk32k_in: clock@0 {
    #clock-cells = <0>;
    };

    + cpus {
    + cpu0: cpu@0 {
    + cpu-supply = <&vddctrl_reg>;
    + operating-points-v2 = <&cpu0_opp_table>;
    + #cooling-cells = <2>;
    + };
    +
    + cpu@1 {
    + cpu-supply = <&vddctrl_reg>;
    + operating-points-v2 = <&cpu0_opp_table>;
    + };
    +
    + cpu@2 {
    + cpu-supply = <&vddctrl_reg>;
    + operating-points-v2 = <&cpu0_opp_table>;
    + };
    +
    + cpu@3 {
    + cpu-supply = <&vddctrl_reg>;
    + operating-points-v2 = <&cpu0_opp_table>;
    + };
    + };
    +
    panel: panel {
    compatible = "chunghwa,claa101wb01";
    ddc-i2c-bus = <&panelddc>;
    @@ -617,6 +644,38 @@ sound {
    <&tegra_car TEGRA30_CLK_EXTERN1>;
    };

    + thermal-zones {
    + cpu-thermal {
    + polling-delay-passive = <1000>; /* milliseconds */
    + polling-delay = <5000>; /* milliseconds */
    +
    + thermal-sensors = <&nct1008 1>;
    +
    + trips {
    + trip0: cpu-alert0 {
    + /* throttle at 57C until temperature drops to 56.8C */
    + temperature = <57000>;
    + hysteresis = <200>;
    + type = "passive";
    + };
    +
    + trip1: cpu-crit {
    + /* shut down at 60C */
    + temperature = <60000>;
    + hysteresis = <2000>;
    + type = "critical";
    + };
    + };
    +
    + cooling-maps {
    + map0 {
    + trip = <&trip0>;
    + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
    + };
    + };
    + };
    + };
    +
    gpio-keys {
    compatible = "gpio-keys";

    --
    2.29.2
    \
     
     \ /
      Last update: 2020-12-17 19:12    [W:4.170 / U:0.020 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site