linux-kernel - [PATCH v2 14/14] ARM: dts: sun8i: Enable DVFS on Orange Pi One

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Message-Id: <20160625034511.7966-15-megous@megous.com>
Date:	Sat, 25 Jun 2016 05:45:11 +0200
From:	megous@...ous.com
To:	dev@...ux-sunxi.org
Cc:	linux-arm-kernel@...ts.infradead.org,
	Ondrej Jirman <megous@...ous.com>,
	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Russell King <linux@...linux.org.uk>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Chen-Yu Tsai <wens@...e.org>,
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
	DEVICE TREE BINDINGS), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2 14/14] ARM: dts: sun8i: Enable DVFS on Orange Pi One

From: Ondrej Jirman <megous@...ous.com>

Use Xulong Orange Pi One GPIO based regulator for
passive cooling and thermal management.

Signed-off-by: Ondrej Jirman <megous@...ous.com>
---
 arch/arm/boot/dts/sun8i-h3-orangepi-one.dts | 39 +++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-one.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-one.dts
index b1bd6b0..a38d871 100644
--- a/arch/arm/boot/dts/sun8i-h3-orangepi-one.dts
+++ b/arch/arm/boot/dts/sun8i-h3-orangepi-one.dts
@@ -109,6 +109,45 @@
 	};
 };
 
+&cpu0 {
+	operating-points = <
+		/* kHz	  uV */
+		1296000	1300000
+		1200000	1300000
+		624000	1100000
+		480000	1100000
+		312000	1100000
+		240000	1100000
+		>;
+	#cooling-cells = <2>;
+	cooling-min-level = <0>;
+	cooling-max-level = <5>;
+	cpu0-supply = <&vdd_soc>;
+};
+
+&cpu_thermal {
+	cooling-maps {
+		map0 {
+			trip = <&cpu_alert0>;
+			cooling-device = <&cpu0 (-1) (-1)>;
+		};
+	};
+
+	trips {
+		cpu_alert0: cpu_alert0 {
+			temperature = <80000>;
+			hysteresis = <2000>;
+			type = "passive";
+		};
+
+		cpu_crit: cpu_crit {
+			temperature = <100000>;
+			hysteresis = <2000>;
+			type = "critical";
+		};
+	};
+};
+
 &ehci1 {
 	status = "okay";
 };
-- 
2.9.0