Re: [PATCH v3] mmc: sdhci: clarify the get_timeout_clock callback

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2017-03-03 12:37 GMT+09:00 Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>:
> Currently the get_timeout_clock callabck doesn't clearly
> have a statment that it needs the variant drivers to return
> the timeout clock rate in KHz if the SDHCI_TIMEOUT_CLK_UNIT
> isn't present, otherwise the variant drivers should return it
> in KHz. So actually sdhci-of-arasan return the wrong value found
> by Anssi[1]. It's also very likely that further variant drivers which
> are going to use this callback will be confused by this situation.
> Given the fact that modem sdhci variant hosts are very prone to get
> the timeout clock from common clock framework(actuall the only three
> users did that), it's more nature to return the value in Hz and we
> make a explicit comment there. Then we put the unit conversion inside
> the sdhci core. Thus will improve the code and prevent further misues.
>
> [1]: https://patchwork.kernel.org/patch/9569431/
> Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> Cc: Anssi Hannula <anssi.hannula@xxxxxxxxxx>
> Cc: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
> Signed-off-by: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
>


For sdhci-cadence.c bit,

Acked-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>


Thanks!




-- 
Best Regards
Masahiro Yamada
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