Re: [PATCH V2 2/4] mmc: sdhci: Avoid unnecessary re-configuration

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On 30/11/22 13:54, Robert Marko wrote:
> 
> On 28. 11. 2022. 14:32, Adrian Hunter wrote:
>> Avoid re-configuring UHS and preset settings when the settings have not
>> changed, irrespective of whether the clock is turning on.
>>
>> Tested-by: Haibo Chen <haibo.chen@xxxxxxx>
>> Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> 
> Hi, this is breaking sdhci-msm on IPQ8074 in next-20221130 for me
> and reverting it makes the eMMC work again.
> 
> I get a lot of:
> 
> [    2.727287] mmc0: tuning execution failed: -5
> [    2.727323] mmc0: error -5 whilst initialising MMC card
> [    3.846540] mmc0: tuning execution failed: -5
> [    3.846564] mmc0: error -5 whilst initialising MMC card
> [    4.966517] mmc0: tuning execution failed: -5
> [    4.966539] mmc0: error -5 whilst initialising MMC card
> [    6.096486] mmc0: tuning execution failed: -5
> [    6.096508] mmc0: error -5 whilst initialising MMC card
> [    7.206431] mmc0: tuning execution failed: -5
> [    7.206454] mmc0: error -5 whilst initialising MMC card

Thanks for the report!  Are you able to debug this any more?
What transfer mode is it? e.g. HS400?  Can you enable debug
messages and get more information?




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