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linux/Documentation/hwmon/aspeed-pwm-tacho.rst

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drivers: hwmon: Support for ASPEED PWM/Fan tach The ASPEED AST2400/2500 PWM controller supports 8 PWM output ports. The ASPEED AST2400/2500 Fan tach controller supports 16 tachometer inputs. The device driver matches on the device tree node. The configuration values are read from the device tree and written to the respective registers. The driver provides a sysfs entries through which the user can configure the duty-cycle value (ranging from 0 to 100 percent) and read the fan tach rpm value. Signed-off-by: Jaghathiswari Rankappagounder Natarajan <jaghu@google.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-04-04 17:52:41 -07:00
Kernel driver aspeed-pwm-tacho
==============================
Supported chips:
ASPEED AST2400/2500
Authors:
<jaghu@google.com>
Description:
------------
This driver implements support for ASPEED AST2400/2500 PWM and Fan Tacho
Documentation: hwmon: correct spelling Correct spelling problems for Documentation/hwmon/ as reported by codespell. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: Jean Delvare <jdelvare@suse.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: linux-hwmon@vger.kernel.org Link: https://lore.kernel.org/r/20230129231053.20863-4-rdunlap@infradead.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-01-29 16:10:47 -07:00
controller. The PWM controller supports up to 8 PWM outputs. The Fan tacho
drivers: hwmon: Support for ASPEED PWM/Fan tach The ASPEED AST2400/2500 PWM controller supports 8 PWM output ports. The ASPEED AST2400/2500 Fan tach controller supports 16 tachometer inputs. The device driver matches on the device tree node. The configuration values are read from the device tree and written to the respective registers. The driver provides a sysfs entries through which the user can configure the duty-cycle value (ranging from 0 to 100 percent) and read the fan tach rpm value. Signed-off-by: Jaghathiswari Rankappagounder Natarajan <jaghu@google.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-04-04 17:52:41 -07:00
controller supports up to 16 tachometer inputs.
The driver provides the following sensor accesses in sysfs:
docs: hwmon: aspeed-pwm-tacho: convert to ReST format Convert aspeed-pwm-tacho to ReST format, in order to allow it to be parsed by Sphinx. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Andrew Jeffery <andrew@aj.id.au> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 02:46:18 -07:00
=============== ======= =====================================================
drivers: hwmon: Support for ASPEED PWM/Fan tach The ASPEED AST2400/2500 PWM controller supports 8 PWM output ports. The ASPEED AST2400/2500 Fan tach controller supports 16 tachometer inputs. The device driver matches on the device tree node. The configuration values are read from the device tree and written to the respective registers. The driver provides a sysfs entries through which the user can configure the duty-cycle value (ranging from 0 to 100 percent) and read the fan tach rpm value. Signed-off-by: Jaghathiswari Rankappagounder Natarajan <jaghu@google.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-04-04 17:52:41 -07:00
fanX_input ro provide current fan rotation value in RPM as reported
by the fan to the device.
pwmX rw get or set PWM fan control value. This is an integer
value between 0(off) and 255(full speed).
docs: hwmon: aspeed-pwm-tacho: convert to ReST format Convert aspeed-pwm-tacho to ReST format, in order to allow it to be parsed by Sphinx. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Andrew Jeffery <andrew@aj.id.au> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17 02:46:18 -07:00
=============== ======= =====================================================
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