ramips: fix sd polling

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>

diff --git a/target/linux/ramips/files/drivers/mmc/host/mtk-mmc/sd.c b/target/linux/ramips/files/drivers/mmc/host/mtk-mmc/sd.c
index 8cbc87da3afcf3e774281c56150e92ff31634fe6..188e0155722e1b016937c2b994bf186d818964ab 100644 (file)
--- a/target/linux/ramips/files/drivers/mmc/host/mtk-mmc/sd.c
+++ b/target/linux/ramips/files/drivers/mmc/host/mtk-mmc/sd.c
@@ -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);