[PATCH 0/2] mmc: sdhci: potentially bad behavior when using vmmc supply

Ulf Hansson ulf.hansson at linaro.org
Mon Nov 9 02:50:50 PST 2015


>> This doesn't seems like a case where a gpio regulator should be used
>> and I am not sure what problem it would solve. Beside to suppress the
>> log warnings (actually those aren't warnings but informations).
>> Isn't sdhci_do_start_signal_voltage_switch() doing what you need here?
> It is. I am only wondering the best way to describe the hardware:
> - No regulator but I have the 'no vqmmc regulator not found' message which
>   is a bit annoying and which can be interpreted as an issue for someone
>   who has no knowledge about this stuff.

Hmm, should we turn them into debug messages? Both regulators are optional.

> - Describe the regulator since there is one on my board. But it is not a
>   fixed regulator and even if it's close to a gpio one it is not.

If it's driven by SDHCI internal logic, I would leave it to that.
There are no need to describe it at all.

Kind regards

More information about the linux-arm-kernel mailing list