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Oktober 2022, 06:01:53 CET schrieb Shawn Guo: > On Tue, Oct 18, 2022 at 11:33:41AM +0200, Alexander Stein wrote: > > This adds the support for optional PWM fan 422J/2HP. > > > > Signed-off-by: Alexander Stein > > Board name should be specified in the patch subject to tell this is a > board specific change, maybe something like `arm64: dts: mba8mpxl: ...`? Yes, you are right. Will fix that. Thanks Alexander > Shawn > > > --- > > Now with inverted polarity support for pwm-fan in place, add PWM fan DT > > nodes for TQMa8MPQL + MBa8MPxL. As this is optional, it's disabled by > > default. This is based on next-20221018. > > > > Note: This device needs 'pwm1_enable' set to 3. E.g. using udev rule: > > SUBSYSTEM=="hwmon", DRIVERS=="pwm-fan", ATTR{pwm1_enable}="3" > > > > .../freescale/imx8mp-tqma8mpql-mba8mpxl.dts | 76 +++++++++++++++++++ > > 1 file changed, 76 insertions(+) > > > > diff --git a/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl.dts > > b/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl.dts index > > 7a32379cd006..ffd117f17bbe 100644 > > --- a/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl.dts > > +++ b/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl.dts > > @@ -55,6 +55,21 @@ clk_xtal25: clk-xtal25 { > > > > clock-frequency = <25000000>; > > > > }; > > > > + fan0: pwm-fan { > > + compatible = "pwm-fan"; > > + pinctrl-names = "default"; > > + pinctrl-0 = <&pinctrl_pwmfan>; > > + fan-supply = <®_pwm_fan>; > > + #cooling-cells = <2>; > > + /* typical 25 kHz -> 40.000 nsec */ > > + pwms = <&pwm3 0 40000 PWM_POLARITY_INVERTED>; > > + cooling-levels = <0 32 64 128 196 240>; > > + pulses-per-revolution = <2>; > > + interrupt-parent = <&gpio5>; > > + interrupts = <18 IRQ_TYPE_EDGE_FALLING>; > > + status = "disabled"; > > + }; > > + > > > > gpio-keys { > > > > compatible = "gpio-keys"; > > pinctrl-names = "default"; > > > > @@ -115,6 +130,18 @@ display: display { > > > > status = "disabled"; > > > > }; > > > > + reg_pwm_fan: regulator-pwm-fan { > > + compatible = "regulator-fixed"; > > + pinctrl-names = "default"; > > + pinctrl-0 = <&pinctrl_regpwmfan>; > > + regulator-name = "FAN_PWR"; > > + regulator-min-microvolt = <12000000>; > > + regulator-max-microvolt = <12000000>; > > + gpio = <&gpio4 27 GPIO_ACTIVE_HIGH>; > > + enable-active-high; > > + vin-supply = <®_vcc_12v0>; > > + }; > > + > > > > reg_usdhc2_vmmc: regulator-usdhc2 { > > > > compatible = "regulator-fixed"; > > pinctrl-names = "default"; > > > > @@ -172,6 +199,47 @@ linux,cma { > > > > linux,cma-default; > > > > }; > > > > }; > > > > + > > + thermal-zones { > > + soc-thermal { > > + trips { > > + soc_active0: trip-active0 { > > + temperature = <40000>; > > + hysteresis = <5000>; > > + type = "active"; > > + }; > > + > > + soc_active1: trip-active1 { > > + temperature = <48000>; > > + hysteresis = <3000>; > > + type = "active"; > > + }; > > + > > + soc_active2: trip-active2 { > > + temperature = <60000>; > > + hysteresis = <10000>; > > + type = "active"; > > + }; > > + }; > > + > > + cooling-maps { > > + map1 { > > + trip = <&soc_active0>; > > + cooling-device = <&fan0 1 1>; > > + }; > > + > > + map2 { > > + trip = <&soc_active1>; > > + cooling-device = <&fan0 2 2>; > > + }; > > + > > + map3 { > > + trip = <&soc_active2>; > > + cooling-device = <&fan0 3 3>; > > + }; > > + }; > > + }; > > + }; > > > > }; > > > > &ecspi1 { > > > > @@ -725,10 +793,18 @@ pinctrl_pwm3: pwm3grp { > > > > fsl,pins = ; > > > > }; > > > > + pinctrl_pwmfan: pwmfangrp { > > + fsl,pins = ; /* FAN RPM */ > > + }; > > + > > > > pinctrl_reg12v0: reg12v0grp { > > > > fsl,pins = ; /* VCC12V > > enable */ > > > > }; > > > > + pinctrl_regpwmfan: regpwmfangrp { > > + fsl,pins = ; > > + }; > > + > > > > /* X61 */ > > pinctrl_uart1: uart1grp { > > > > fsl,pins = , _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel