On 15/08/16 09:14, dawei chien wrote:
Hi Matthias,
On Thu, 2016-08-11 at 17:51 +0200, Matthias Brugger wrote:
On 07/07/16 11:06, Dawei Chien wrote:
This adds the thermal controller and auxadc nodes
to the Mediatek MT2701 dtsi file.
Signed-off-by: Dawei Chien <dawei.chien@xxxxxxxxxxxx>
---
This patch depned on:
https://patchwork.kernel.org/patch/9213545/
---
arch/arm/boot/dts/mt2701.dtsi | 43 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/arch/arm/boot/dts/mt2701.dtsi b/arch/arm/boot/dts/mt2701.dtsi
index 2ac8b50..0834a23 100644
--- a/arch/arm/boot/dts/mt2701.dtsi
+++ b/arch/arm/boot/dts/mt2701.dtsi
@@ -77,6 +77,36 @@
#clock-cells = <0>;
};
+ thermal-zones {
+ cpu_thermal: cpu_thermal {
+ polling-delay-passive = <1000>; /* milliseconds */
+ polling-delay = <1000>; /* milliseconds */
+
+ thermal-sensors = <&thermal 0>;
+ sustainable-power = <1000>;
+
+ trips {
+ threshold: trip-point@0 {
+ temperature = <68000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ target: trip-point@1 {
+ temperature = <85000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ cpu_crit: cpu_crit@0 {
+ temperature = <115000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+ };
+ };
+
timer {
compatible = "arm,armv7-timer";
interrupt-parent = <&gic>;
@@ -183,4 +213,17 @@
clocks = <&uart_clk>;
status = "disabled";
};
+
+ thermal: thermal@1100b000 {
+ #thermal-sensor-cells = <0>;
+ compatible = "mediatek,mt2701-thermal";
+ reg = <0 0x1100b000 0 0x1000>;
+ interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&pericfg CLK_PERI_THERM>, <&pericfg CLK_PERI_AUXADC>;
+ clock-names = "therm", "auxadc";
+ resets = <&pericfg 0x10>;
+ reset-names = "therm";
+ mediatek,auxadc = <&auxadc>;
+ mediatek,apmixedsys = <&apmixedsys>;
+ };
};
what about:
status = "disabled"; ?
Since thermal driver would protect our platform by shutdown method once
SoC temperature over critical point, I prefer keep this rather than
disabling, how do you think, thank you.
Sounds reasonable. Thanks
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