Re: [PATCH] mmc: core: skip mmc_power_up call from start host

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On 17 July 2012 16:22, S, Venkatraman <svenkatr@xxxxxx> wrote:
> On Fri, Jul 13, 2012 at 6:27 PM, Girish K S
> <girish.shivananjappa@xxxxxxxxxx> wrote:
>> The call to the mmc_power_up during the mmc_start_host breaks the card
>> detection in design-ware host controller. This patch removes the call to
>> mmc_power_up function during host start.
>>
> Please explain why. Which commit introduced it ?
dw_mmc card detection is broken by this commit
fa5501890d8974301042e0202d342a6cbe8609f4
>
>> This fix works fine with sdhci (sdhci compatilble host controller)
>> and dw_mmc (design-ware host controller). and has no side effect due to
>> this removal.
>>
> How can you be sure ? What about other hosts ?
I have tested on the available host controllers. It would be helpful
if others test it and let me know whether this change of mine causes
any problem.
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