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    SubjectRe: [v4 1/5] dt-bindings: mfd: Add aspeed pwm-tach binding
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    On 2022/12/9, 3:48 PM, "Krzysztof Kozlowski" <krzysztof.kozlowski@linaro.org <mailto:krzysztof.kozlowski@linaro.org>> wrote:


    On 09/12/2022 01:54, Billy Tsai wrote:
    > > > > However I am surprised to see such change, so I have no clue why this
    > > > > was done.
    > >
    > > > Actually now I see it was like that in previous patch, I just missed it
    > > > during previous review. Anyway this must be fixed.
    > >
    > > I have two module (PWM and TACH) but share with the same base address,
    > > The PWM will use the offset (N*0x10) + 0x0 and 0x04.
    > > The TACH will use the offset (N*0x10) + 0x8 and 0x0c.
    > > The range of the N is 0~15.
    > > Can you give me some advice to fix this problem without using simple-mfd?


    > Use regular driver which populates children.

    I think that my scenario meets the definition in mfd.txt:
    - A range of memory registers containing "miscellaneous system registers" also
    known as a system controller "syscon" or any other memory range containing a
    mix of unrelated hardware devices.
    Can you tell me the considerations for not using simple-mfd?

    Thanks

    Best Regards,
    Billy Tsai



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