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Add Nuvoton BMC NPCM750/730/715/705 Pulse Width Modulation (PWM) and Fan tacho driver. The Nuvoton BMC NPCM750/730/715/705 supports 8 PWM controller outputs and 16 Fan controller inputs. The driver provides a sysfs entries through which the user can configure the duty-cycle value from 0(off) and 255(full speed) and read the fan tacho rpm value. Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
23 lines
631 B
Plaintext
23 lines
631 B
Plaintext
Kernel driver npcm750-pwm-fan
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=============================
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Supported chips:
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NUVOTON NPCM750/730/715/705
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Authors:
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<tomer.maimon@nuvoton.com>
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Description:
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------------
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This driver implements support for NUVOTON NPCM7XX PWM and Fan Tacho
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controller. The PWM controller supports up to 8 PWM outputs. The Fan tacho
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controller supports up to 16 tachometer inputs.
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The driver provides the following sensor accesses in sysfs:
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fanX_input ro provide current fan rotation value in RPM as reported
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by the fan to the device.
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pwmX rw get or set PWM fan control value. This is an integer
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value between 0(off) and 255(full speed).
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