[PATCH] mmc: Revert "mmc: core: Allow mmc_start_host() synchronously detect a card"

From: Ulf Hansson
Date: Fri Jun 30 2023 - 08:00:35 EST


It has turned out that some mmc host drivers were not ready to deal with
this change. Let's fix those host drivers first, then we can give this a
new try.

Fixes: 2cc83bf7d411 (mmc: core: Allow mmc_start_host() synchronously detect a card)
Cc: Dennis Zhou <dennis@xxxxxxxxxx>
Reported-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Reported-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
---
drivers/mmc/core/core.c | 15 ++++-----------
1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index ec4108a3e5b9..3d3e0ca52614 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2199,8 +2199,10 @@ int mmc_card_alternative_gpt_sector(struct mmc_card *card, sector_t *gpt_sector)
}
EXPORT_SYMBOL(mmc_card_alternative_gpt_sector);

-static void __mmc_rescan(struct mmc_host *host)
+void mmc_rescan(struct work_struct *work)
{
+ struct mmc_host *host =
+ container_of(work, struct mmc_host, detect.work);
int i;

if (host->rescan_disable)
@@ -2272,14 +2274,6 @@ static void __mmc_rescan(struct mmc_host *host)
mmc_schedule_delayed_work(&host->detect, HZ);
}

-void mmc_rescan(struct work_struct *work)
-{
- struct mmc_host *host =
- container_of(work, struct mmc_host, detect.work);
-
- __mmc_rescan(host);
-}
-
void mmc_start_host(struct mmc_host *host)
{
host->f_init = max(min(freqs[0], host->f_max), host->f_min);
@@ -2292,8 +2286,7 @@ void mmc_start_host(struct mmc_host *host)
}

mmc_gpiod_request_cd_irq(host);
- host->detect_change = 1;
- __mmc_rescan(host);
+ _mmc_detect_change(host, 0, false);
}

void __mmc_stop_host(struct mmc_host *host)
--
2.34.1