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Message-Id: <20230529204258.65238-5-linux@fw-web.de>
Date: Mon, 29 May 2023 22:42:58 +0200
From: Frank Wunderlich <linux@...web.de>
To: linux-mediatek@...ts.infradead.org
Cc: Frank Wunderlich <frank-w@...lic-files.de>,
Jonathan Cameron <jic23@...nel.org>,
Lars-Peter Clausen <lars@...afoo.de>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
"Hui.Liu" <hui.liu@...iatek.com>,
Zhiyong Tao <zhiyong.tao@...iatek.com>,
Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
Lala Lin <lala.lin@...iatek.com>, linux-iio@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
Daniel Golle <daniel@...rotopia.org>
Subject: [PATCH v2 4/4] arm64: dts: mt7986: add pwm-fan and cooling-maps to BPI-R3 dts
From: Daniel Golle <daniel@...rotopia.org>
Add pwm-fan and cooling-maps to BananaPi-R3 devicetree.
Signed-off-by: Daniel Golle <daniel@...rotopia.org>
Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
---
this is based on Patch from openwrt. as my PWM-fan seems to need 5v pwm
signal and r3 only provides 3v3 on 3pin-socket it does not work for me.
---
.../dts/mediatek/mt7986a-bananapi-bpi-r3.dts | 31 +++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts
index 782519429497..29c018bbf29d 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts
@@ -37,6 +37,15 @@ dcin: regulator-12vd {
regulator-always-on;
};
+ fan: pwm-fan {
+ compatible = "pwm-fan";
+ #cooling-cells = <2>;
+ /* cooling level (0, 1, 2) - pwm inverted */
+ cooling-levels = <255 96 0>;
+ pwms = <&pwm 0 10000 0>;
+ status = "okay";
+ };
+
gpio-keys {
compatible = "gpio-keys";
@@ -132,6 +141,28 @@ sfp2: sfp-2 {
};
};
+&cpu_thermal {
+ cooling-maps {
+ cpu-active-high {
+ /* active: set fan to cooling level 2 */
+ cooling-device = <&fan 2 2>;
+ trip = <&cpu_trip_active_high>;
+ };
+
+ cpu-active-low {
+ /* active: set fan to cooling level 1 */
+ cooling-device = <&fan 1 1>;
+ trip = <&cpu_trip_active_low>;
+ };
+
+ cpu-passive {
+ /* passive: set fan to cooling level 0 */
+ cooling-device = <&fan 0 0>;
+ trip = <&cpu_trip_passive>;
+ };
+ };
+};
+
&crypto {
status = "okay";
};
--
2.34.1
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