diff mbox series

[v1,4/5] LoongArch: dts: Add PWM support to Loongson-2K1000

Message ID cf9585343fbf245719edbc9ff1d3eddbbf34698f.1711953223.git.zhoubinbin@loongson.cn
State Superseded
Headers show
Series pwm: Introduce pwm driver for the Loongson family chips | expand

Commit Message

Binbin Zhou April 2, 2024, 7:59 a.m. UTC 
The module is supported, enable it.
Also, add the pwm-fan and cooling-maps associated with it.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
---
 .../boot/dts/loongson-2k1000-ref.dts          | 24 +++++++++++
 arch/loongarch/boot/dts/loongson-2k1000.dtsi  | 42 ++++++++++++++++++-
 2 files changed, 65 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/loongarch/boot/dts/loongson-2k1000-ref.dts b/arch/loongarch/boot/dts/loongson-2k1000-ref.dts
index ed4d32434041..a7cd3912f30d 100644
--- a/arch/loongarch/boot/dts/loongson-2k1000-ref.dts
+++ b/arch/loongarch/boot/dts/loongson-2k1000-ref.dts
@@ -5,6 +5,7 @@ 
 
 /dts-v1/;
 
+#include "dt-bindings/thermal/thermal.h"
 #include "loongson-2k1000.dtsi"
 
 / {
@@ -38,6 +39,13 @@  linux,cma {
 			linux,cma-default;
 		};
 	};
+
+	fan0: pwm-fan {
+		compatible = "pwm-fan";
+		cooling-levels = <255 153 85 25>;
+		pwms = <&pwm1 1 100000 0>;
+		#cooling-cells = <2>;
+	};
 };
 
 &gmac0 {
@@ -97,6 +105,22 @@  spidev@0 {
 	};
 };
 
+&pwm1 {
+	status = "okay";
+
+	pinctrl-0 = <&pwm1_pins_default>;
+	pinctrl-names = "default";
+};
+
+&cpu_thermal {
+	cooling-maps {
+		map0 {
+			trip = <&cpu_alert>;
+			cooling-device = <&fan0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+		};
+	};
+};
+
 &ehci0 {
 	status = "okay";
 };
diff --git a/arch/loongarch/boot/dts/loongson-2k1000.dtsi b/arch/loongarch/boot/dts/loongson-2k1000.dtsi
index 49a70f8c3cab..0ebaace3214b 100644
--- a/arch/loongarch/boot/dts/loongson-2k1000.dtsi
+++ b/arch/loongarch/boot/dts/loongson-2k1000.dtsi
@@ -68,7 +68,7 @@  i2c-gpio-1 {
 	};
 
 	thermal-zones {
-		cpu-thermal {
+		cpu_thermal: cpu-thermal {
 			polling-delay-passive = <1000>;
 			polling-delay = <5000>;
 			thermal-sensors = <&tsensor 0>;
@@ -316,6 +316,46 @@  i2c3: i2c@1fe21800 {
 			status = "disabled";
 		};
 
+		pwm@1fe22000 {
+			compatible = "loongson,ls2k1000-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1fe22000 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <24 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm1: pwm@1fe22010 {
+			compatible = "loongson,ls2k1000-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1fe22010 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <25 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1fe22020 {
+			compatible = "loongson,ls2k1000-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1fe22020 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <26 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1fe22030 {
+			compatible = "loongson,ls2k1000-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1fe22030 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <27 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
 		pmc: power-management@1fe27000 {
 			compatible = "loongson,ls2k1000-pmc", "loongson,ls2k0500-pmc", "syscon";
 			reg = <0x0 0x1fe27000 0x0 0x58>;