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ramips: fix sd polling

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This is fixed in 18.06, it appears again in 19.07.
Currently mt7628 sdcard driver do not support polling mode which is for
the device do not have card-detect pin to detect sd card insert. Without
this patch, device will not detect sdcard is inserted. This patch is a
fix of that.

Signed-off-by: Qin Wei <support@vocore.io>
This commit is contained in:
Qin Wei 2020-05-16 15:51:36 +08:00 committed by Hauke Mehrtens
parent dd13add3ce
commit cd6515c2e8
1 changed files with 4 additions and 0 deletions
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4
target/linux/ramips/files/drivers/mmc/host/mtk-mmc/sd.c
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@ -439,6 +439,8 @@ static void msdc_tasklet_card(struct work_struct *work)
inserted = (status & MSDC_PS_CDSTS) ? 0 : 1;
else
inserted = (status & MSDC_PS_CDSTS) ? 1 : 0;
if (host->mmc->caps & MMC_CAP_NEEDS_POLL)
inserted = 1;
#if 0
change = host->card_inserted ^ inserted;
@ -1857,6 +1859,8 @@ static int msdc_ops_get_cd(struct mmc_host *mmc)
present = (sdr_read32(MSDC_PS) & MSDC_PS_CDSTS) ? 0 : 1;
else
present = (sdr_read32(MSDC_PS) & MSDC_PS_CDSTS) ? 1 : 0;
if (host->mmc->caps & MMC_CAP_NEEDS_POLL)
present = 1;
host->card_inserted = present;
#endif
spin_unlock_irqrestore(&host->lock, flags);