review.tizen.org Git - platform/kernel/linux-starfive.git/commit

author	Wenchao Chen <wenchao.chen@unisoc.com>
	Wed, 15 Nov 2023 08:34:06 +0000 (16:34 +0800)
committer	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
	Fri, 8 Dec 2023 07:51:19 +0000 (08:51 +0100)
commit	8b01195be4a98009815ffafd5bf676e3c50ebaf1
tree	814a45c234ac96255dc354f2b13f9ca8170b86bd	tree \| snapshot
parent	38d3216032c95a6dceb4fea829ec63e38250bef1	commit \| diff

mmc: sdhci-sprd: Fix vqmmc not shutting down after the card was pulled

[ Upstream commit 477865af60b2117ceaa1d558e03559108c15c78c ]

With cat regulator_summary, we found that vqmmc was not shutting
down after the card was pulled.

cat /sys/kernel/debug/regulator/regulator_summary
1.before fix
1)Insert SD card
vddsdio 1    1  0 unknown  3500mV 0mA  1200mV  3750mV
    71100000.mmc-vqmmc  1                         0mA  3500mV  3600mV

2)Pull out the SD card
vddsdio                1    1  0 unknown  3500mV 0mA  1200mV  3750mV
    71100000.mmc-vqmmc  1                         0mA  3500mV  3600mV

2.after fix
1)Insert SD cardt
vddsdio                1    1  0 unknown  3500mV 0mA  1200mV  3750mV
    71100000.mmc-vqmmc  1                         0mA  3500mV  3600mV

2)Pull out the SD card
vddsdio 0    1  0 unknown  3500mV 0mA  1200mV  3750mV
    71100000.mmc-vqmmc  0                         0mA  3500mV  3600mV

Fixes: fb8bd90f83c4 ("mmc: sdhci-sprd: Add Spreadtrum's initial host controller")
Signed-off-by: Wenchao Chen <wenchao.chen@unisoc.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231115083406.7368-1-wenchao.chen@unisoc.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>