Faiz, Jean
> Subject: [PATCH] Revert "mmc: disable UHS modes if Vcc cannot be switched
> on and off"
Got time to take a look?
Thanks,
Peng.
>
> This reverts commit 04a2ea248f58b3b6216d0cd0a6b8698df8b14355.
>
> That commit is causing reboot loops on Nokia N900 and basically make
> U-Boot on Nokia N900 unusable. Revert it for now until problem is solved.
>
> After reverting that commit U-Boot on Nokia N900 is working again.
>
> Signed-off-by: Pali Rohár <p...@kernel.org>
> ---
> drivers/mmc/mmc.c | 13 +------------
> 1 file changed, 1 insertion(+), 12 deletions(-)
>
> diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index
> d79cdef62e..48c1629a19 100644
> --- a/drivers/mmc/mmc.c
> +++ b/drivers/mmc/mmc.c
> @@ -2800,18 +2800,7 @@ int mmc_get_op_cond(struct mmc *mmc)
> MMC_QUIRK_RETRY_APP_CMD;
> #endif
>
> - err = mmc_power_cycle(mmc);
> - if (err) {
> - /*
> - * if power cycling is not supported, we should not try
> - * to use the UHS modes, because we wouldn't be able to
> - * recover from an error during the UHS initialization.
> - */
> - pr_debug("Unable to do a full power cycle. Disabling the UHS
> modes for safety\n");
> - uhs_en = false;
> - mmc->host_caps &= ~UHS_CAPS;
> - err = mmc_power_on(mmc);
> - }
> + err = mmc_power_on(mmc);
> if (err)
> return err;
>
> --
> 2.20.1
