[PATCH 1/4] mmc: pwrseq: add op reset to struct mmc_pwrseq_ops

[Ulf Hansson]

[...]

>>> @@ -166,6 +166,7 @@ int mmc_wait_for_cmd(struct mmc_host *host, struct mmc_command *cmd,
>>>                 int retries);
>>>
>>>  int mmc_hw_reset(struct mmc_host *host);
>>> +void mmc_hw_reset_pwrseq(struct mmc_host *host);
>>
>> Don't you think we can make this transparent to mmc host drivers,
>> instead of them having to assign their host_ops->hw_reset() callback
>> to this new API? Because I guess that's the though!?
>>
>> In principle the mmc core already have all the information it needs,
>> as to understand when the eMMC pwrseq should be invoked. Or perhaps
>> the code may become a bit too messy for that?
>>
> The easiest way I could think of:
> If host->ops->hw_reset is NULL overwrite it with pwrseq->ops->reset
> in mmc_add_host. But host->ops is defined es being const, so the compiler
> won't allow us to do this. Of course we could do some casting but usually
> I try to avoid hacks like casting away const qualifiers.

No thanks. :-)

[...]

Kind regards
Uffe