RE: [PATCH v2] mmc: sd: Macro name cleanup for full speed dtr

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-----Original Message-----
From: Ulf Hansson [mailto:ulf.hansson@xxxxxxxxxx] 
Sent: 2018年5月23日 19:28
To: Yinbo Zhu <yinbo.zhu@xxxxxxx>
Cc: Y.b. Lu <yangbo.lu@xxxxxxx>; Adrian Hunter <adrian.hunter@xxxxxxxxx>; linux-mmc@xxxxxxxxxxxxxxx; Xiaobo Xie <xiaobo.xie@xxxxxxx>
Subject: Re: [PATCH v2] mmc: sd: Macro name cleanup for full speed dtr

On 23 May 2018 at 12:52, Yinbo Zhu <yinbo.zhu@xxxxxxx> wrote:
> Add new macros for the full speed 25MHz case

>For clarity, pleas re-word this as it's not a macro, but a define.
>Moreover, I don't consider this a "cleanup", which is what the commit msg header says. Instead you are adding a new 
>define for SD default speed mode, please make that clear.
Hi Ulf

Thanks your feedback, and I will change the commit information as your description

>Also, it's not clear *why* you needs this, and that you need to explain. This change just introduce the new define but 
>without anybody using it, it doesn't make sense.

I add the define is for the sd/mmc limit the max-frequency's patch that need it.

Thanks
Regrds,
Yinbo
>
> Signed-off-by: Yinbo Zhu <yinbo.zhu@xxxxxxx>
> ---
> Change in v2:
>                 Modify the macro name from FULL_SPEED_MAX_DTR to DEFAULT_SPEED_MAX_DTR
>  include/linux/mmc/card.h |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 
> 279b390..f5be8c7 100644
> --- a/include/linux/mmc/card.h
> +++ b/include/linux/mmc/card.h
> @@ -156,6 +156,7 @@ struct sd_switch_caps {
>  #define UHS_DDR50_MAX_DTR      50000000
>  #define UHS_SDR25_MAX_DTR      UHS_DDR50_MAX_DTR
>  #define UHS_SDR12_MAX_DTR      25000000
> +#define DEFAULT_SPEED_MAX_DTR  UHS_SDR12_MAX_DTR
>         unsigned int            sd3_bus_mode;
>  #define UHS_SDR12_BUS_SPEED    0
>  #define HIGH_SPEED_BUS_SPEED   1
> --
> 1.7.1
>

Kind regards
Uffe
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