From 8113169cadce2e298a6a6b973132bd40a996f2f4 Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Thu, 9 May 2024 22:35:47 +0100 Subject: [PATCH] mediatek: fix PWM fan on BPi-R4 Add additional PWM fan cooling step and enable fan on BPi-R4. Suggested-by: Frank Wunderlich Signed-off-by: Daniel Golle --- .../arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dtsi | 9 +++++++++ .../files-6.6/arch/arm64/boot/dts/mediatek/mt7988a.dtsi | 4 ++-- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dtsi b/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dtsi index c4c05fd419..14c615b67c 100644 --- a/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dtsi +++ b/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dtsi @@ -297,6 +297,15 @@ status = "okay"; }; +&pwm { + status = "okay"; +}; + +&fan { + pwms = <&pwm 0 50000>; + status = "okay"; +}; + &ssusb1 { status = "okay"; }; diff --git a/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7988a.dtsi b/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7988a.dtsi index af4dcb3581..9ad068fe05 100644 --- a/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7988a.dtsi +++ b/target/linux/mediatek/files-6.6/arch/arm64/boot/dts/mediatek/mt7988a.dtsi @@ -149,8 +149,8 @@ fan: pwm-fan { compatible = "pwm-fan"; - /* cooling level (0, 1, 2) : (0% duty, 50% duty, 100% duty) */ - cooling-levels = <0 128 255>; + /* cooling level (0, 1, 2, 3) : (0% duty, 30% duty, 50% duty, 100% duty) */ + cooling-levels = <0 80 128 255>; #cooling-cells = <2>; #thermal-sensor-cells = <1>; status = "disabled"; -- 2.30.2