| .. SPDX-License-Identifier: GPL-2.0-or-later |
| |
| Kernel driver aspeed-g6-pwm-tach |
| ================================= |
| |
| Supported chips: |
| ASPEED AST2600 |
| |
| Authors: |
| <billy_tsai@aspeedtech.com> |
| |
| Description: |
| ------------ |
| This driver implements support for ASPEED AST2600 Fan Tacho controller. |
| The controller supports up to 16 tachometer inputs. |
| |
| The driver provides the following sensor accesses in sysfs: |
| |
| =============== ======= ====================================================== |
| fanX_input ro provide current fan rotation value in RPM as reported |
| by the fan to the device. |
| fanX_div rw Fan divisor: Supported value are power of 4 (1, 4, 16 |
| 64, ... 4194304) |
| The larger divisor, the less rpm accuracy and the less |
| affected by fan signal glitch. |
| =============== ======= ====================================================== |
