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SubjectRe: [PATCH v3 12/16] mmc: tmio: support IP-builtin card detection logic
On Thu, Jan 18, 2018 at 01:28:12AM +0900, Masahiro Yamada wrote:
> A card detect GPIO is set up only for platforms with "cd-gpios"
> DT property or TMIO_MMC_USE_GPIO_CD flag. However, the driver
> core always uses mmc_gpio_get_cd, which just fails with -ENOSYS
> if ctx->cd_gpio is unset.
> The bit 5 of the status register provides the current signal level
> of the CD line. Allow to use it if the GPIO is unused.
> Signed-off-by: Masahiro Yamada <>

Reviewed-by: Wolfram Sang <>

> @@ -1095,7 +1103,7 @@ static const struct mmc_host_ops tmio_mmc_ops = {

I just wonder why the diff-tool puts 'const' in the definition. There is
no const in my version here. And there shouldn't be because we modify
the struct in this patch.

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