linux-kernel - [PATCH v2 3/3] ARM: dts: NSP: Add Thermal Support

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Message-Id: <1493328194-1766-4-git-send-email-jon.mason@broadcom.com>
Date:   Thu, 27 Apr 2017 17:23:14 -0400
From:   Jon Mason <jon.mason@...adcom.com>
To:     Florian Fainelli <florian.fainelli@...adcom.com>,
        Zhang Rui <rui.zhang@...el.com>,
        Eduardo Valentin <edubezval@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     bcm-kernel-feedback-list@...adcom.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH v2 3/3] ARM: dts: NSP: Add Thermal Support

Add thermal support via the ns-thermal driver and create a single
thermal zone for the entire SoC.

Signed-off-by: Jon Mason <jon.mason@...adcom.com>
Acked-by: Eduardo Valentin <edubezval@...il.com>
---
 arch/arm/boot/dts/bcm-nsp.dtsi | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm/boot/dts/bcm-nsp.dtsi b/arch/arm/boot/dts/bcm-nsp.dtsi
index 832795b..be6fcfb 100644
--- a/arch/arm/boot/dts/bcm-nsp.dtsi
+++ b/arch/arm/boot/dts/bcm-nsp.dtsi
@@ -383,6 +383,12 @@
 			      <0x3f408 0x04>;
 		};
 
+		thermal: thermal@...c0 {
+			compatible = "brcm,ns-thermal";
+			reg = <0x3f2c0 0x10>;
+			#thermal-sensor-cells = <0>;
+		};
+
 		sata_phy: sata_phy@...00 {
 			compatible = "brcm,iproc-nsp-sata-phy";
 			reg = <0x40100 0x340>;
@@ -533,4 +539,24 @@
 			brcm,pcie-msi-inten;
 		};
 	};
+
+	thermal-zones {
+		cpu-thermal {
+			polling-delay-passive = <0>;
+			polling-delay = <1000>;
+			coefficients = <(-556) 418000>;
+			thermal-sensors = <&thermal>;
+
+			trips {
+				cpu-crit {
+					temperature     = <125000>;
+					hysteresis      = <0>;
+					type            = "critical";
+				};
+			};
+
+			cooling-maps {
+			};
+		};
+	};
 };
-- 
2.7.4