Re: [PATCH v3 06/16] mmc: tmio: refactor .get_ro hook

[Wolfram Sang]

On Thu, Jan 18, 2018 at 01:28:06AM +0900, Masahiro Yamada wrote:
> This IP provides the write protect signal level in the status
> register, but it is also possible to use GPIO for WP.  They are
> exclusive, so it is not efficient to call mmc_gpio_get_ro() every
> time from tmio_mmc_get_ro() if we know gpio_ro is not used.
> 
> Check the capability of gpio_ro just once in the probe function,
> then set mmc_gpio_get_ro to .get_ro if it is the case.
> 
> Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>

Reviewed-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>

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