diff mbox series

[7/7] arm64: dts: imx95-19x19-evk: add pwm fan control

Message ID 20240627220001.692875-7-Frank.Li@nxp.com (mailing list archive)
State New, archived
Headers show
Series [1/7] arm64: dts: imx95: add edma[1..3] nodes | expand

Commit Message

Frank Li June 27, 2024, 10 p.m. UTC 
Add pwm fan and overwrite default thermal nodes.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
 .../boot/dts/freescale/imx95-19x19-evk.dts    | 49 +++++++++++++++++++
 1 file changed, 49 insertions(+)

Comments

Peng Fan June 28, 2024, 12:59 a.m. UTC | #1 
> Subject: [PATCH 7/7] arm64: dts: imx95-19x19-evk: add pwm fan
> control
> 
> Add pwm fan and overwrite default thermal nodes.
> 
> Signed-off-by: Frank Li <Frank.Li@nxp.com>
> ---

tpm6 not enabled?

Regards,
Peng.
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
index ed8921d6217b8..0c84efd058ce1 100644
--- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
@@ -5,6 +5,7 @@ 
 
 /dts-v1/;
 
+#include <dt-bindings/pwm/pwm.h>
 #include "imx95.dtsi"
 
 / {
@@ -31,6 +32,13 @@  memory@80000000 {
 		reg = <0x0 0x80000000 0 0x80000000>;
 	};
 
+	fan0: pwm-fan {
+		compatible = "pwm-fan";
+		#cooling-cells = <2>;
+		pwms = <&tpm6 2 4000000 PWM_POLARITY_INVERTED>;
+		cooling-levels = <64 128 192 255>;
+	};
+
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
@@ -558,3 +566,44 @@  IMX95_PAD_SD2_VSELECT__USDHC2_VSELECT		0x51e
 		>;
 	};
 };
+
+&thermal_zones {
+	a55-thermal {
+		trips {
+			atrip2: trip2 {
+				temperature = <55000>;
+				hysteresis = <2000>;
+				type = "active";
+			};
+
+			atrip3: trip3 {
+				temperature = <65000>;
+				hysteresis = <2000>;
+				type = "active";
+			};
+
+			atrip4: trip4 {
+				temperature = <75000>;
+				hysteresis = <2000>;
+				type = "active";
+			};
+		};
+
+		cooling-maps {
+			map1 {
+				trip = <&atrip2>;
+				cooling-device = <&fan0 0 1>;
+			};
+
+			map2 {
+				trip = <&atrip3>;
+				cooling-device = <&fan0 1 2>;
+			};
+
+			map3 {
+				trip = <&atrip4>;
+				cooling-device = <&fan0 2 3>;
+			};
+		};
+	};
+};