From 8412b410fa5e1e494a0fec84c3c462d49870d3f5 Mon Sep 17 00:00:00 2001 From: Nuno Sá Date: Wed, 9 Oct 2019 12:28:05 +0200 Subject: hwmon: Support ADI Fan Control IP MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The purpose of this IP Core is to control the fan used for the cooling of a Xilinx Zynq Ultrascale+ MPSoC without the need of any external temperature sensors. To achieve this, the IP core uses the PL SYSMONE4 primitive to obtain the PL temperature and, based on those readings, it then outputs a PWM signal to control the fan rotation accordingly. Signed-off-by: Nuno Sá Link: https://lore.kernel.org/r/20191009102806.262241-1-nuno.sa@analog.com [groeck: adi,pulses-per-revolution -> pulses-per-revolution; dropped unused 'res' from probe function] Signed-off-by: Guenter Roeck --- MAINTAINERS | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'MAINTAINERS') diff --git a/MAINTAINERS b/MAINTAINERS index a6fbdf354d34..24967172af26 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2957,6 +2957,13 @@ S: Maintained F: Documentation/devicetree/bindings/sound/axentia,* F: sound/soc/atmel/tse850-pcm5142.c +AXI-FAN-CONTROL HARDWARE MONITOR DRIVER +M: Nuno Sá +W: http://ez.analog.com/community/linux-device-drivers +L: linux-hwmon@vger.kernel.org +S: Supported +F: drivers/hwmon/axi-fan-control.c + AXXIA I2C CONTROLLER M: Krzysztof Adamski L: linux-i2c@vger.kernel.org -- cgit v1.2.3 From e81ca0efbbe293a529a441c81949fc7f97a3917f Mon Sep 17 00:00:00 2001 From: Nuno Sá Date: Wed, 9 Oct 2019 12:28:06 +0200 Subject: dt-bindings: hwmon: Add AXI FAN Control documentation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Document the AXI FAN Control IP core devicetree bindings. Signed-off-by: Nuno Sá Reviewed-by: Rob Herring Link: https://lore.kernel.org/r/20191009102806.262241-2-nuno.sa@analog.com [groeck: adi,pulses-per-revolution -> pulses-per-revolution] Signed-off-by: Guenter Roeck --- .../bindings/hwmon/adi,axi-fan-control.yaml | 62 ++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 63 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml (limited to 'MAINTAINERS') diff --git a/Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml b/Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml new file mode 100644 index 000000000000..57a240d2d026 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml @@ -0,0 +1,62 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright 2019 Analog Devices Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bindings/hwmon/adi,axi-fan-control.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AXI FAN Control Device Tree Bindings + +maintainers: + - Nuno Sá + +description: |+ + Bindings for the Analog Devices AXI FAN Control driver. Spefications of the + core can be found in: + + https://wiki.analog.com/resources/fpga/docs/axi_fan_control + +properties: + compatible: + enum: + - adi,axi-fan-control-1.00.a + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + interrupts: + maxItems: 1 + + pulses-per-revolution: + description: + Value specifying the number of pulses per revolution of the controlled + FAN. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + enum: [1, 2, 4] + +required: + - compatible + - reg + - clocks + - interrupts + - pulses-per-revolution + +examples: + - | + fpga_axi: fpga-axi@0 { + #address-cells = <0x2>; + #size-cells = <0x1>; + + axi_fan_control: axi-fan-control@80000000 { + compatible = "adi,axi-fan-control-1.00.a"; + reg = <0x0 0x80000000 0x10000>; + clocks = <&clk 71>; + interrupts = <0 110 0>; + pulses-per-revolution = <2>; + }; + }; +... diff --git a/MAINTAINERS b/MAINTAINERS index 24967172af26..89682b3c76ca 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2963,6 +2963,7 @@ W: http://ez.analog.com/community/linux-device-drivers L: linux-hwmon@vger.kernel.org S: Supported F: drivers/hwmon/axi-fan-control.c +F: Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml AXXIA I2C CONTROLLER M: Krzysztof Adamski -- cgit v1.2.3