[PATCH v4 7/7] mmc: host: renesas_sdhi_core: support selecting an optional mux

[Wolfram Sang]

Hi Josua,

thanks for your work and kudos for striving for a generic solution. It
seems worthwhile to me to add the helpers. I have questions, though:

> +	priv->mux_state = devm_mux_state_get_optional_selected(&pdev->dev, NULL);

The minor nit (which may be bike-shedding): Maybe the function name
could be '*_select' instead of '*_selected'. To make more explicit that
this function is actively changing the selection and not passively
retrieving the current state?

The bigger thing is that with devm_* I had the expectation that
deselection is also handled automatically...

> +edselmux:
> +	if (priv->mux_state)
> +		mux_state_deselect(priv->mux_state);

... so I was a bit surprised to see this manual cleanup. Has it been
discussed if that deselection can also be in the helpers?

Happy hacking,

   Wolfram