lkml.org 
[lkml]   [2017]   [Sep]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RESEND PATCH v4 1/2] ARM: dts: uniphier: add nodes of thermal monitor and thermal zone for PXs2
Date
Add nodes of thermal monitor and thermal zone for UniPhier PXs2 SoC.
The thermal monitor node is included in sysctrl. Since the efuse might not
have a calibrated value of thermal monitor, this patch gives the default
value for PXs2.

Furthermore, add cpuN labels for reference in cooling-device property.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
---
arch/arm/boot/dts/uniphier-pxs2.dtsi | 47 +++++++++++++++++++++++++++++++++---
1 file changed, 43 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/uniphier-pxs2.dtsi b/arch/arm/boot/dts/uniphier-pxs2.dtsi
index 90b020c..f2dfebe 100644
--- a/arch/arm/boot/dts/uniphier-pxs2.dtsi
+++ b/arch/arm/boot/dts/uniphier-pxs2.dtsi
@@ -7,6 +7,8 @@
* SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/

+#include <dt-bindings/thermal/thermal.h>
+
/ {
compatible = "socionext,uniphier-pxs2";
#address-cells = <1>;
@@ -16,7 +18,7 @@
#address-cells = <1>;
#size-cells = <0>;

- cpu@0 {
+ cpu0: cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <0>;
@@ -24,9 +26,10 @@
enable-method = "psci";
next-level-cache = <&l2>;
operating-points-v2 = <&cpu_opp>;
+ #cooling-cells = <2>;
};

- cpu@1 {
+ cpu1: cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <1>;
@@ -36,7 +39,7 @@
operating-points-v2 = <&cpu_opp>;
};

- cpu@2 {
+ cpu2: cpu@2 {
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <2>;
@@ -46,7 +49,7 @@
operating-points-v2 = <&cpu_opp>;
};

- cpu@3 {
+ cpu3: cpu@3 {
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <3>;
@@ -114,6 +117,35 @@
};
};

+ thermal-zones {
+ cpu_thermal {
+ polling-delay-passive = <250>; /* 250ms */
+ polling-delay = <1000>; /* 1000ms */
+ thermal-sensors = <&pvtctl>;
+
+ trips {
+ cpu_crit: cpu_crit {
+ temperature = <95000>; /* 95C */
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ cpu_alert: cpu_alert {
+ temperature = <85000>; /* 85C */
+ hysteresis = <2000>;
+ type = "passive";
+ };
+ };
+
+ cooling-maps {
+ map {
+ trip = <&cpu_alert>;
+ cooling-device = <&cpu0
+ THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+ };
+
soc {
compatible = "simple-bus";
#address-cells = <1>;
@@ -358,6 +390,13 @@
compatible = "socionext,uniphier-pxs2-reset";
#reset-cells = <1>;
};
+
+ pvtctl: pvtctl {
+ compatible = "socionext,uniphier-pxs2-thermal";
+ interrupts = <0 3 4>;
+ #thermal-sensor-cells = <0>;
+ socionext,tmod-calibration = <0x0f86 0x6844>;
+ };
};

nand: nand@68000000 {
--
2.7.4
\
 
 \ /
  Last update: 2017-09-04 09:00    [W:0.046 / U:0.040 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site