This is a note to let you know that I've just added the patch titled
mmc: sdhci-pci-o2micro: Fix card detect by dealing with debouncing
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mmc-sdhci-pci-o2micro-fix-card-detect-by-dealing-with-debouncing.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e591fcf6b4e39335c9b128b17738fcd2fdd278ae Mon Sep 17 00:00:00 2001
From: Chevron Li <chevron.li@xxxxxxxxxxxxxx>
Date: Thu, 2 Jun 2022 06:25:43 -0700
Subject: mmc: sdhci-pci-o2micro: Fix card detect by dealing with debouncing
From: Chevron Li <chevron.li@xxxxxxxxxxxxxx>
commit e591fcf6b4e39335c9b128b17738fcd2fdd278ae upstream.
The result from ->get_cd() may be incorrect as the card detect debouncing
isn't managed correctly. Let's fix it.
Signed-off-by: Chevron Li<chevron.li@xxxxxxxxxxxxxx>
Fixes: 7d44061704dd ("mmc: sdhci-pci-o2micro: Fix O2 Host data read/write DLL Lock phase shift issue")
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/20220602132543.596-1-chevron.li@xxxxxxxxxxxxxx
[Ulf: Updated the commit message]
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mmc/host/sdhci-pci-o2micro.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/mmc/host/sdhci-pci-o2micro.c
+++ b/drivers/mmc/host/sdhci-pci-o2micro.c
@@ -147,6 +147,8 @@ static int sdhci_o2_get_cd(struct mmc_ho
if (!(sdhci_readw(host, O2_PLL_DLL_WDT_CONTROL1) & O2_PLL_LOCK_STATUS))
sdhci_o2_enable_internal_clock(host);
+ else
+ sdhci_o2_wait_card_detect_stable(host);
return !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
}
Patches currently in stable-queue which might be from chevron.li@xxxxxxxxxxxxxx are
queue-5.15/mmc-sdhci-pci-o2micro-fix-card-detect-by-dealing-with-debouncing.patch
