From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM

---
 kernel/Documentation/devicetree/bindings/hwmon/pwm-fan.txt |   29 +++++++++++++++++++++++++++--
 1 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/kernel/Documentation/devicetree/bindings/hwmon/pwm-fan.txt b/kernel/Documentation/devicetree/bindings/hwmon/pwm-fan.txt
index c6d5332..457ce16 100644
--- a/kernel/Documentation/devicetree/bindings/hwmon/pwm-fan.txt
+++ b/kernel/Documentation/devicetree/bindings/hwmon/pwm-fan.txt
@@ -6,11 +6,26 @@
 - cooling-levels      : PWM duty cycle values in a range from 0 to 255
 			which correspond to thermal cooling states
 
+Optional properties:
+- fan-supply		: phandle to the regulator that provides power to the fan
+- interrupts		: This contains a single interrupt specifier which
+			  describes the tachometer output of the fan as an
+			  interrupt source. The output signal must generate a
+			  defined number of interrupts per fan revolution, which
+			  require that it must be self resetting edge interrupts.
+			  See interrupt-controller/interrupts.txt for the format.
+- pulses-per-revolution : define the tachometer pulses per fan revolution as
+			  an integer (default is 2 interrupts per revolution).
+			  The value must be greater than zero.
+- rockchip,temp-trips	: The property is an array of 2-tuples items, and
+			  each item consists of temperature in millicelsius and
+			  pwm cooling state. This depends on CONFIG_ROCKCHIP_SYSTEM_MONITOR.
+			  If add the property the fan cooling state will be changed
+			  by system monitor. Otherwise, use the default thermal governor.
+
 Example:
 	fan0: pwm-fan {
 		compatible = "pwm-fan";
-		cooling-min-state = <0>;
-		cooling-max-state = <3>;
 		#cooling-cells = <2>;
 		pwms = <&pwm 0 10000 0>;
 		cooling-levels = <0 102 170 230>;
@@ -35,3 +50,13 @@
 					};
 			     };
 		};
+
+Example 2:
+	fan0: pwm-fan {
+		compatible = "pwm-fan";
+		pwms = <&pwm 0 40000 0>;
+		fan-supply = <&reg_fan>;
+		interrupt-parent = <&gpio5>;
+		interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
+		pulses-per-revolution = <2>;
+	};

--
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