Support for ASPEED AST2400/AST2500 PWM and Fan Tach driver
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b4 am [email protected]Versions newest first · linked by author and title
- v7 Latest2 patches 0 repliesNew
- v62 patches 3 repliesApplied
- v52 patches 4 repliesSuperseded
Earlier versions · 4
| Version | Posted | Patches | Replies | Status |
|---|---|---|---|---|
| v4 | 2 patches | 2 replies | Superseded | |
| v3 | 1 patch | 1 reply | Superseded | |
| v2 | 2 patches | 2 replies | Superseded | |
| v1 | 2 patches | 4 replies | Superseded |
Patches in v7 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | Documentation: dt-bindings: Document bindings for ASPEED AST2400/AST2500 PWM and Fan tach controller device driverDocumentation/ | +68 | 0 replies | |
| 2/2 | drivers: hwmon: Support for ASPEED PWM/Fan tachDocumentation/ drivers/ drivers/ +1 more | +867 | 0 replies |
Reviews trailers per patch
1 of 2 patches has a Reviewed-by or Acked-by.
| Patch | Rob Herring |
|---|---|
| 1/2 | A-b |
| 2/2 |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH linux v7 0/2] Support for ASPEED AST2400/AST2500 PWM and Fan Tach driver
Support for ASPEED AST2400/AST2500 PWM and Fan Tach driver.
Patches based on the upstream tag 4.9. Changes made in Version 4 are indicated in the individual patches.
The AST2400/AST2500 PWM controller can support 8 PWM output ports. The AST2400/AST2500 Fan Tach controller can support 16 tachometer inputs. The hwmon driver provides sysfs entries through which the user can configure the duty cycle for the particular PWM output port and read the fan rpm value for the particular tachometer input.
Added devicetree binding documentation for AST2400/AST2500 PWM and Fan Tach support.
Tested on Zaius board (which has AST2500 chip) and observed that when duty cycle is lowered then the fan speed is lowered and lower fan rpm value( corresponding to the duty cycle) is reported and when the duty cycle is increased then the fan speed increases and higher fan rpm value(corresponding to the duty cycle) is reported.
Jaghathiswari Rankappagounder Natarajan (2):
Documentation: dt-bindings: Document bindings for ASPEED
AST2400/AST2500 PWM and Fan tach controller device driver
drivers: hwmon: Support for ASPEED PWM/Fan tach
.../devicetree/bindings/hwmon/aspeed-pwm-tacho.txt | 68 ++ Documentation/hwmon/aspeed-pwm-tacho | 22 + drivers/hwmon/Kconfig | 9 + drivers/hwmon/Makefile | 1 + drivers/hwmon/aspeed-pwm-tacho.c | 835 +++++++++++++++++++++ 5 files changed, 935 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt create mode 100644 Documentation/hwmon/aspeed-pwm-tacho create mode 100644 drivers/hwmon/aspeed-pwm-tacho.c
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2.12.2.715.g7642488e1d-goog