[v6 2/4] dt-bindings: hwmon: Add ASPEED TACH Control documentation

Guenter Roeck linux at roeck-us.net
Fri Jul 14 19:59:40 AEST 2023


On 7/14/23 00:13, Krzysztof Kozlowski wrote:
> On 14/07/2023 09:04, 蔡承達 wrote:
> 
>>          > This is because our register layout for PWM and Tach is not
>> continuous.
>>
>>          > PWM0 used 0x0 0x4, Tach0 used 0x8 0xc
>>
>>          > PWM1 used 0x10 0x14, Tach1 used 0x18 0x1c
>>
>>          > ...
>>
>>          > Each PWM/Tach instance has its own controller register and is not
>> dependent on others.
> 
> Your email reply quoting style is very difficult to read.
> 
>>
>>
>>
>> Hi Guenter,
>>
>>
>>
>> Did you receive a response to my previous email?
>>
>> I would like to inquire if you have any further concerns regarding the PWM
>> and Tach with 16 instances.
> 
> But isn't like this in all PWMs in all SoCs?
> 

Correct, pretty much every fan controller is implemented that way.
I don't understand the logic.

Guenter




More information about the Linux-aspeed mailing list