On 14 April 2015 at 15:12, Adrian Hunter <[email protected]> wrote:
> Enable re-tuning when tuning is executed and
> disable re-tuning when card is no longer initialized.
>
> Signed-off-by: Adrian Hunter <[email protected]>
> ---
>  drivers/mmc/core/core.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
> index c296bc0..dd43f9b 100644
> --- a/drivers/mmc/core/core.c
> +++ b/drivers/mmc/core/core.c
> @@ -1109,6 +1109,8 @@ int mmc_execute_tuning(struct mmc_card *card)
>
>         if (err)
>                 pr_err("%s: tuning execution failed\n", mmc_hostname(host));
> +       else
> +               mmc_retune_enable(host);
>
>         return err;
>  }
> @@ -1140,6 +1142,8 @@ void mmc_set_bus_width(struct mmc_host *host, unsigned 
> int width)
>   */
>  void mmc_set_initial_state(struct mmc_host *host)
>  {
> +       mmc_retune_disable(host);
> +
>         if (mmc_host_is_spi(host))
>                 host->ios.chip_select = MMC_CS_HIGH;
>         else
> --
> 1.9.1

I don't think you have fully considered these cases for the mmc/sd/sdio cards.

1) Card removal/detect (hold/release?)
2) system PM (disable?)
3) runtime PM (disable?)
4) reset (?)

Kind regards
Uffe
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