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048787d3cf
Add Device Tree binding document for the generic PWM based tachometer. Bug 3621819 Change-Id: Ic8184e3e86d8708fd776d276e4d9994e4103b5ed Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2703730 GVS: Gerrit_Virtual_Submit
47 lines
1.0 KiB
YAML
47 lines
1.0 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/hwmon/generic-pwm-tachometer.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Generic PWM based tachometer HW monitor driver
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maintainers:
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- Laxman Dewangan <ldewangan@nvidia.com>
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description: |
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Generic PWM based tachometer driver which captures the PWM signal and reports
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the speed of the device which generates the PWM signal. This helps in monitor
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the speed of fan.
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properties:
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compatible:
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enum:
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- generic-pwm-tachometer
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pwms:
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maxItems: 1
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description: |
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This property contains the phandle of the PWM controller which capture the
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PWM signal.
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required:
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- compatible
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- pwms
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additionalProperties: false
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examples:
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- |
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tegra_tachometer: tachometer@39c0000 {
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reg = <0x39c0000 0x0>;
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#pwm-cells = <2>;
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/* Other properties of tachometer */
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};
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generic_pwm_tachometer {
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compatible = "generic-pwm-tachometer";
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pwms = <&tegra_tachometer 0 1000000>;
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};
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...
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