Re: [PATCH] Revert "mmc: mxs: fix card detection in case of 'broken-cd' flag set"
From: Ulf Hansson
Date: Wed Oct 24 2018 - 10:22:41 EST
On 24 October 2018 at 16:10, Michael Thalmeier
> This reverts commit 6f726f495f2d ("mmc: mxs: fix card detection in case of 'broken-cd' flag set").
> Since mxs_mmc_probe always sets MMC_CAP_NEEDS_POLL unconditionally, card
> detect is not working properly any more since commit 6f726f495f2d.
> Instead of querying the card detect status mxs_mmc_get_cd now always
> returns 1 which causes probing commands being sent to the mmc card.
> The expected behaviour of commit 6f726f495f2d should be reachable by setting
> broken_cd instead.
I would rather make a new fix on top, rather than reverting a four
year old patch. Can you please look into that instead?
> Signed-off-by: Michael Thalmeier <michael.thalmeier@xxxxxxx>
> drivers/mmc/host/mxs-mmc.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
> diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
> index add1e70..cfdae61 100644
> --- a/drivers/mmc/host/mxs-mmc.c
> +++ b/drivers/mmc/host/mxs-mmc.c
> @@ -86,8 +86,7 @@ static int mxs_mmc_get_cd(struct mmc_host *mmc)
> if (ret >= 0)
> return ret;
> - present = mmc->caps & MMC_CAP_NEEDS_POLL ||
> - !(readl(ssp->base + HW_SSP_STATUS(ssp)) &
> + present = !(readl(ssp->base + HW_SSP_STATUS(ssp)) &
> if (mmc->caps2 & MMC_CAP2_CD_ACTIVE_HIGH)