[PATCH 2/2] mmc: fix device_remove when HS400_ES is enabled

Jaehoon Chung jh80.chung at samsung.com
Sat Aug 28 07:02:45 CEST 2021


On 8/17/21 6:20 PM, Ye Li wrote:
> HS400_ES is missed when down grade to HS mode during
> device_remove the mmc device
> 
> Signed-off-by: Ye Li <ye.li at nxp.com>

Reviewed-by: Jaehoon Chung <jh80.chung at samsung.com>

Best Regards,
Jaehoon Chung

> ---
>  drivers/mmc/mmc.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
> index a1fd533..3cb6fda 100644
> --- a/drivers/mmc/mmc.c
> +++ b/drivers/mmc/mmc.c
> @@ -2092,14 +2092,16 @@ static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps)
>  	}
>  
>  #if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
> -    CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
> +    CONFIG_IS_ENABLED(MMC_HS400_SUPPORT) || \
> +    CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
>  	/*
>  	 * In case the eMMC is in HS200/HS400 mode, downgrade to HS mode
>  	 * before doing anything else, since a transition from either of
>  	 * the HS200/HS400 mode directly to legacy mode is not supported.
>  	 */
>  	if (mmc->selected_mode == MMC_HS_200 ||
> -	    mmc->selected_mode == MMC_HS_400)
> +	    mmc->selected_mode == MMC_HS_400 ||
> +	    mmc->selected_mode == MMC_HS_400_ES)
>  		mmc_set_card_speed(mmc, MMC_HS, true);
>  	else
>  #endif
> @@ -2952,7 +2954,7 @@ int mmc_deinit(struct mmc *mmc)
>  		return sd_select_mode_and_width(mmc, caps_filtered);
>  	} else {
>  		caps_filtered = mmc->card_caps &
> -			~(MMC_CAP(MMC_HS_200) | MMC_CAP(MMC_HS_400));
> +			~(MMC_CAP(MMC_HS_200) | MMC_CAP(MMC_HS_400) | MMC_CAP(MMC_HS_400_ES));
>  
>  		return mmc_select_mode_and_width(mmc, caps_filtered);
>  	}
> 



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