On 14 April 2015 at 15:12, Adrian Hunter <adrian.hunter@xxxxxxxxx> wrote:
> Enable re-tuning when tuning is executed and
> disable re-tuning when card is no longer initialized.
>
> Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> ---
> 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
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
