[PATCH] ARM: dts: exynos: Only Odroid XU3-family boards use DTSI with CPU thermal nodes
From: Krzysztof Kozlowski
Date: Mon May 09 2016 - 02:20:11 EST
Include the CPU thermal nodes directly in Odroid XU3-family common DTS
because it is the only user of it. Keeping it in separate DTSI node does
not bring benefits because:
1. It is not re-usable on other non-fan boards (fan is referenced),
2. It won't be re-used on future Odroid XU board because different
CPU cluster behavior.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
---
arch/arm/boot/dts/exynos5422-cpu-thermal.dtsi | 103 ---------------------
arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 94 ++++++++++++++++++-
2 files changed, 92 insertions(+), 105 deletions(-)
delete mode 100644 arch/arm/boot/dts/exynos5422-cpu-thermal.dtsi
diff --git a/arch/arm/boot/dts/exynos5422-cpu-thermal.dtsi b/arch/arm/boot/dts/exynos5422-cpu-thermal.dtsi
deleted file mode 100644
index 3e4c4ad96d63..000000000000
--- a/arch/arm/boot/dts/exynos5422-cpu-thermal.dtsi
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * Device tree sources for Exynos5422 thermal zone
- *
- * Copyright (c) 2015 Lukasz Majewski <l.majewski@xxxxxxxxxxx>
- * Anand Moon <linux.amoon@xxxxxxxxx>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#include <dt-bindings/thermal/thermal.h>
-
-/ {
- thermal-zones {
- cpu0_thermal: cpu0-thermal {
- thermal-sensors = <&tmu_cpu0 0>;
- polling-delay-passive = <250>;
- polling-delay = <0>;
- trips {
- cpu_alert0: cpu-alert-0 {
- temperature = <50000>; /* millicelsius */
- hysteresis = <5000>; /* millicelsius */
- type = "active";
- };
- cpu_alert1: cpu-alert-1 {
- temperature = <60000>; /* millicelsius */
- hysteresis = <5000>; /* millicelsius */
- type = "active";
- };
- cpu_alert2: cpu-alert-2 {
- temperature = <70000>; /* millicelsius */
- hysteresis = <5000>; /* millicelsius */
- type = "active";
- };
- cpu_crit0: cpu-crit-0 {
- temperature = <120000>; /* millicelsius */
- hysteresis = <0>; /* millicelsius */
- type = "critical";
- };
- /*
- * Exyunos542x support only 4 trip-points
- * so for these polling mode is required.
- * Start polling at temperature level of last
- * interrupt-driven trip: cpu_alert2
- */
- cpu_alert3: cpu-alert-3 {
- temperature = <70000>; /* millicelsius */
- hysteresis = <10000>; /* millicelsius */
- type = "passive";
- };
- cpu_alert4: cpu-alert-4 {
- temperature = <85000>; /* millicelsius */
- hysteresis = <10000>; /* millicelsius */
- type = "passive";
- };
-
- };
- cooling-maps {
- map0 {
- trip = <&cpu_alert0>;
- cooling-device = <&fan0 0 1>;
- };
- map1 {
- trip = <&cpu_alert1>;
- cooling-device = <&fan0 1 2>;
- };
- map2 {
- trip = <&cpu_alert2>;
- cooling-device = <&fan0 2 3>;
- };
- /*
- * When reaching cpu_alert3, reduce CPU
- * by 2 steps. On Exynos5422/5800 that would
- * be: 1500 MHz and 1100 MHz.
- */
- map3 {
- trip = <&cpu_alert3>;
- cooling-device = <&cpu0 0 2>;
- };
- map4 {
- trip = <&cpu_alert3>;
- cooling-device = <&cpu4 0 2>;
- };
-
- /*
- * When reaching cpu_alert4, reduce CPU
- * further, down to 600 MHz (11 steps for big,
- * 7 steps for LITTLE).
- */
- map5 {
- trip = <&cpu_alert4>;
- cooling-device = <&cpu0 3 7>;
- };
- map6 {
- trip = <&cpu_alert4>;
- cooling-device = <&cpu4 3 11>;
- };
- };
- };
- };
-};
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
index 2a4e10bc8801..ff05041835e5 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
@@ -1,9 +1,11 @@
/*
* Hardkernel Odroid XU3 board device tree source
*
- * Copyright (c) 2014 Collabora Ltd.
* Copyright (c) 2013 Samsung Electronics Co., Ltd.
* http://www.samsung.com
+ * Copyright (c) 2014 Collabora Ltd.
+ * Copyright (c) 2015 Lukasz Majewski <l.majewski@xxxxxxxxxxx>
+ * Anand Moon <linux.amoon@xxxxxxxxx>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -16,7 +18,6 @@
#include <dt-bindings/sound/samsung-i2s.h>
#include "exynos5800.dtsi"
#include "exynos5422-cpus.dtsi"
-#include "exynos5422-cpu-thermal.dtsi"
/ {
memory {
@@ -54,6 +55,95 @@
#cooling-cells = <2>;
cooling-levels = <0 130 170 230>;
};
+
+ thermal-zones {
+ cpu0_thermal: cpu0-thermal {
+ thermal-sensors = <&tmu_cpu0 0>;
+ polling-delay-passive = <250>;
+ polling-delay = <0>;
+ trips {
+ cpu_alert0: cpu-alert-0 {
+ temperature = <50000>; /* millicelsius */
+ hysteresis = <5000>; /* millicelsius */
+ type = "active";
+ };
+ cpu_alert1: cpu-alert-1 {
+ temperature = <60000>; /* millicelsius */
+ hysteresis = <5000>; /* millicelsius */
+ type = "active";
+ };
+ cpu_alert2: cpu-alert-2 {
+ temperature = <70000>; /* millicelsius */
+ hysteresis = <5000>; /* millicelsius */
+ type = "active";
+ };
+ cpu_crit0: cpu-crit-0 {
+ temperature = <120000>; /* millicelsius */
+ hysteresis = <0>; /* millicelsius */
+ type = "critical";
+ };
+ /*
+ * Exynos542x supports only 4 trip-points
+ * so for these polling mode is required.
+ * Start polling at temperature level of last
+ * interrupt-driven trip: cpu_alert2
+ */
+ cpu_alert3: cpu-alert-3 {
+ temperature = <70000>; /* millicelsius */
+ hysteresis = <10000>; /* millicelsius */
+ type = "passive";
+ };
+ cpu_alert4: cpu-alert-4 {
+ temperature = <85000>; /* millicelsius */
+ hysteresis = <10000>; /* millicelsius */
+ type = "passive";
+ };
+
+ };
+ cooling-maps {
+ map0 {
+ trip = <&cpu_alert0>;
+ cooling-device = <&fan0 0 1>;
+ };
+ map1 {
+ trip = <&cpu_alert1>;
+ cooling-device = <&fan0 1 2>;
+ };
+ map2 {
+ trip = <&cpu_alert2>;
+ cooling-device = <&fan0 2 3>;
+ };
+ /*
+ * When reaching cpu_alert3, reduce CPU
+ * by 2 steps. On Exynos5422/5800 that would
+ * be: 1500 MHz and 1100 MHz.
+ */
+ map3 {
+ trip = <&cpu_alert3>;
+ cooling-device = <&cpu0 0 2>;
+ };
+ map4 {
+ trip = <&cpu_alert3>;
+ cooling-device = <&cpu4 0 2>;
+ };
+
+ /*
+ * When reaching cpu_alert4, reduce CPU
+ * further, down to 600 MHz (11 steps for big,
+ * 7 steps for LITTLE).
+ */
+ map5 {
+ trip = <&cpu_alert4>;
+ cooling-device = <&cpu0 3 7>;
+ };
+ map6 {
+ trip = <&cpu_alert4>;
+ cooling-device = <&cpu4 3 11>;
+ };
+ };
+ };
+ };
+
};
&bus_wcore {
--
1.9.1