[PATCH] ARM: dts: kirkwood: Add drivetemp thermal zone in Ctera C200V1

* [PATCH] ARM: dts: kirkwood: Add drivetemp thermal zone in Ctera C200V1
@ 2022-09-29  8:02 Pawel Dembicki
  2022-09-29 12:54 ` Andrew Lunn
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Pawel Dembicki @ 2022-09-29  8:02 UTC (permalink / raw)
  To: devicetree, linux-arm-kernel, Gregory Clement, Andrew Lunn
  Cc: Pawel Dembicki, Linus Walleij

Ctera C200 V1 have two SATA bays, but thermal zone is handled for only one.
For some reason thermal zone works only with first disk.
It was reported one year ago [1].

[1] https://www.mail-archive.com/openwrt-devel@lists.openwrt.org/msg56599.html

Suggested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
---
 arch/arm/boot/dts/kirkwood-c200-v1.dts | 37 ++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/arch/arm/boot/dts/kirkwood-c200-v1.dts b/arch/arm/boot/dts/kirkwood-c200-v1.dts
index f59ff7578dfc..ffe60150a67a 100644
--- a/arch/arm/boot/dts/kirkwood-c200-v1.dts
+++ b/arch/arm/boot/dts/kirkwood-c200-v1.dts
@@ -156,6 +156,31 @@ led-12 {
 			trigger-sources = <&hub_port1>;
 		};
 	};
+
+	thermal-zones {
+		/* Thermal zone works only with first disk */
+
+		disk0-thermal {
+			polling-delay = <20000>;
+			polling-delay-passive = <2000>;
+
+			thermal-sensors = <&hdd0_temp>;
+
+			/* Tripping points from the fan.script in the rootfs */
+			trips {
+				disk0_alert: disk0-alert {
+					temperature = <40000>;
+					hysteresis = <5000>;
+					type = "active";
+				};
+				disk0_crit: disk0-crit {
+					temperature = <60000>;
+					hysteresis = <2000>;
+					type = "critical";
+				};
+			};
+		};
+	};
 };
 
 &eth0 {
@@ -280,6 +305,18 @@ &rtc {
 &sata {
 	status = "okay";
 	nr-ports = <2>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	hdd0_temp: sata-port@0 {
+		reg = <0>;
+		#thermal-sensor-cells = <0>;
+	};
+
+	hdd1_temp: sata-port@1 {
+		reg = <1>;
+		#thermal-sensor-cells = <0>;
+	};
 };
 
 &uart0 {
-- 
2.34.1


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