Commit Graph
8532 Commits
Author SHA1 Message Date
Luke WangandGreg Kroah-Hartman 81472f8e87 mmc: core: Optimize time for secure erase/trim for some Kingston eMMCs
[ Upstream commit d6bf2e64de ]

Kingston eMMC IY2964 and IB2932 takes a fixed ~2 seconds for each secure
erase/trim operation regardless of size - that is, a single secure
erase/trim operation of 1MB takes the same time as 1GB. With default
calculated 3.5MB max discard size, secure erase 1GB requires ~300 separate
operations taking ~10 minutes total.

Add a card quirk, MMC_QUIRK_FIXED_SECURE_ERASE_TRIM_TIME, to set maximum
secure erase size for those devices. This allows 1GB secure erase to
complete in a single operation, reducing time from 10 minutes to just 2
seconds.

Signed-off-by: Luke Wang <ziniu.wang_1@nxp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
[ adapted to use mmc_can_secure_erase_trim()/mmc_can_trim() and placed helper after mmc_card_no_uhs_ddr50_tuning() ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-05-14 15:29:28 +02:00
Shawn LinandGreg Kroah-Hartman 7fa5055d6f mmc: sdhci-of-dwcmshc: Disable clock before DLL configuration
commit 6546a49bbe upstream.

According to the ASIC design recommendations, the clock must be
disabled before operating the DLL to prevent glitches that could
affect the internal digital logic. In extreme cases, failing to
do so may cause the controller to malfunction completely.

Adds a step to disable the clock before DLL configuration and
re-enables it at the end.

Fixes: 08f3dff799 ("mmc: sdhci-of-dwcmshc: add rockchip platform support")
Cc: stable@vger.kernel.org
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-05-07 06:09:35 +02:00
Bin LiuandGreg Kroah-Hartman 6c89101001 mmc: block: use single block write in retry
commit c7c6d4f510 upstream.

Due to errata i2493[0], multi-block write would still fail in retries.

With i2493, the MMC interface has the potential of write failures when
issuing multi-block writes operating in HS200 mode with excessive IO
supply noise.

While the errata provides guidance in hardware design and layout to
minimize the IO supply noise, in theory the write failure cannot be
resolved in hardware. The software solution to ensure the data integrity
is to add minimum 5us delay between block writes. Single-block write is
the practical way to introduce the delay.

This patch reuses recovery_mode flag, and switches to single-block
write in retry when multi-block write fails. It covers both CQE and
non-CQE cases.

[0] https://www.ti.com/lit/pdf/sprz582
Cc: stable@vger.kernel.org
Suggested-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-05-07 06:09:35 +02:00
Johan HovoldandGreg Kroah-Hartman 53f2642d77 mmc: vub300: fix NULL-deref on disconnect
commit dff34ef879 upstream.

Make sure to deregister the controller before dropping the reference to
the driver data on disconnect to avoid NULL-pointer dereferences or
use-after-free.

Fixes: 88095e7b47 ("mmc: Add new VUB300 USB-to-SD/SDIO/MMC driver")
Cc: stable@vger.kernel.org # 3.0+
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-18 10:41:58 +02:00
Luke WangandGreg Kroah-Hartman 45fd9d8352 mmc: sdhci: fix timing selection for 1-bit bus width
commit 5e3486e640 upstream.

When 1-bit bus width is used with HS200/HS400 capabilities set,
mmc_select_hs200() returns 0 without actually switching. This
causes mmc_select_timing() to skip mmc_select_hs(), leaving eMMC
in legacy mode (26MHz) instead of High Speed SDR (52MHz).

Per JEDEC eMMC spec section 5.3.2, 1-bit mode supports High Speed
SDR. Drop incompatible HS200/HS400/UHS/DDR caps early so timing
selection falls through to mmc_select_hs() correctly.

Fixes: f2119df6b7 ("mmc: sd: add support for signal voltage switch procedure")
Signed-off-by: Luke Wang <ziniu.wang_1@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-25 11:08:48 +01:00
Matthew SchwartzandGreg Kroah-Hartman 570bbd5264 mmc: sdhci-pci-gli: fix GL9750 DMA write corruption
commit 2b76e0cc78 upstream.

The GL9750 SD host controller has intermittent data corruption during
DMA write operations. The GM_BURST register's R_OSRC_Lmt field
(bits 17:16), which limits outstanding DMA read requests from system
memory, is not being cleared during initialization. The Windows driver
sets R_OSRC_Lmt to zero, limiting requests to the smallest unit.

Clear R_OSRC_Lmt to match the Windows driver behavior. This eliminates
write corruption verified with f3write/f3read tests while maintaining
DMA performance.

Cc: stable@vger.kernel.org
Fixes: e51df6ce66 ("mmc: host: sdhci-pci: Add Genesys Logic GL975x support")
Closes: https://lore.kernel.org/linux-mmc/33d12807-5c72-41ce-8679-57aa11831fad@linux.dev/
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Reviewed-by: Ben Chuang <ben.chuang@genesyslogic.com.tw>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-25 11:08:48 +01:00
Shawn LinandGreg Kroah-Hartman a10b3c5dec mmc: dw_mmc-rockchip: Fix runtime PM support for internal phase support
[ Upstream commit 6465a8bbb0 ]

RK3576 is the first platform to introduce internal phase support, and
subsequent platforms are expected to adopt a similar design. In this
architecture, runtime suspend powers off the attached power domain, which
resets registers, including vendor-specific ones such as SDMMC_TIMING_CON0,
SDMMC_TIMING_CON1, and SDMMC_MISC_CON. These registers must be saved and
restored, a requirement that falls outside the scope of the dw_mmc core.

Fixes: 59903441f5 ("mmc: dw_mmc-rockchip: Add internal phase support")
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Tested-by: Marco Schirrmeister <mschirrmeister@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-25 11:08:42 +01:00
Shawn LinandGreg Kroah-Hartman 7457b35afa mmc: dw_mmc-rockchip: Add memory clock auto-gating support
[ Upstream commit ff6f0286c8 ]

Per design recommendations, the memory clock can be gated when there
is no in-flight transfer, which helps save power. This feature is
introduced alongside internal phase support, and this patch enables it.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Stable-dep-of: 6465a8bbb0 ("mmc: dw_mmc-rockchip: Fix runtime PM support for internal phase support")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-25 11:08:42 +01:00
Jisheng ZhangandGreg Kroah-Hartman bcb599684e mmc: dw_mmc-rockchip: use modern PM macros
[ Upstream commit 4b43f2bcc8 ]

Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://lore.kernel.org/r/20250815013413.28641-39-jszhang@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Stable-dep-of: 6465a8bbb0 ("mmc: dw_mmc-rockchip: Fix runtime PM support for internal phase support")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-25 11:08:42 +01:00
Felix GuandGreg Kroah-Hartman 590f8a4ad4 mmc: mmci: Fix device_node reference leak in of_get_dml_pipe_index()
commit af12e64ae0 upstream.

When calling of_parse_phandle_with_args(), the caller is responsible
to call of_node_put() to release the reference of device node.
In of_get_dml_pipe_index(), it does not release the reference.

Fixes: 9cb15142d0 ("mmc: mmci: Add qcom dml support to the driver.")
Signed-off-by: Felix Gu <gu_0233@qq.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-25 11:08:32 +01:00
Greg Kroah-HartmanandSasha Levin d225e23c07 Revert "mmc: rtsx_pci_sdmmc: increase power-on settling delay to 5ms"
[ Upstream commit ff112f1ecd ]

This reverts commit aced969e9b.

It was determined that this was not the correct "fix", so should be
reverted.

Fixes: aced969e9b ("mmc: rtsx_pci_sdmmc: increase power-on settling delay to 5ms")
Cc: Matthew Schwartz <matthew.schwartz@linux.dev>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-03-04 07:20:31 -05:00
Matthew SchwartzandSasha Levin b58f107f35 mmc: rtsx_pci_sdmmc: increase power-on settling delay to 5ms
[ Upstream commit aced969e9b ]

The existing 1ms delay in sd_power_on is insufficient and causes resume
errors around 4% of the time.

Increasing the delay to 5ms resolves this issue after testing 300
s2idle cycles.

Fixes: 1f311c94aa ("mmc: rtsx: add 74 Clocks in power on flow")
Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Link: https://patch.msgid.link/20260105060236.400366-3-matthew.schwartz@linux.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-03-04 07:20:29 -05:00
Shawn LinandGreg Kroah-Hartman de0ad71560 mmc: sdhci-of-dwcmshc: Prevent illegal clock reduction in HS200/HS400 mode
commit 3009738a85 upstream.

When operating in HS200 or HS400 timing modes, reducing the clock frequency
below 52MHz will lead to link broken as the Rockchip DWC MSHC controller
requires maintaining a minimum clock of 52MHz in these modes.

Add a check to prevent illegal clock reduction through debugfs:

root@debian:/# echo 50000000 > /sys/kernel/debug/mmc0/clock
root@debian:/# [   30.090146] mmc0: running CQE recovery
mmc0: cqhci: Failed to halt
mmc0: cqhci: spurious TCN for tag 0
WARNING: drivers/mmc/host/cqhci-core.c:797 at cqhci_irq+0x254/0x818, CPU#1: kworker/1:0H/24
Modules linked in:
CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0H Not tainted 6.19.0-rc1-00001-g09db0998649d-dirty #204 PREEMPT
Hardware name: Rockchip RK3588 EVB1 V10 Board (DT)
Workqueue: kblockd blk_mq_run_work_fn
pstate: 604000c9 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : cqhci_irq+0x254/0x818
lr : cqhci_irq+0x254/0x818
...

Fixes: c6f361cba5 ("mmc: sdhci-of-dwcmshc: add support for rk3588")
Cc: Sebastian Reichel <sebastian.reichel@collabora.com>
Cc: Yifeng Zhao <yifeng.zhao@rock-chips.com>
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-30 10:28:45 +01:00
Matthew SchwartzandGreg Kroah-Hartman ec5eccf560 mmc: rtsx_pci_sdmmc: implement sdmmc_card_busy function
commit 1226102201 upstream.

rtsx_pci_sdmmc does not have an sdmmc_card_busy function, so any voltage
switches cause a kernel warning, "mmc0: cannot verify signal voltage
switch."

Copy the sdmmc_card_busy function from rtsx_pci_usb to rtsx_pci_sdmmc to
fix this.

Fixes: ff984e57d3 ("mmc: Add realtek pcie sdmmc host driver")
Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Tested-by: Ricky WU <ricky_wu@realtek.com>
Reviewed-by: Ricky WU <ricky_wu@realtek.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-30 10:28:45 +01:00
Sarthak GargandGreg Kroah-Hartman b679e1985d mmc: sdhci-msm: Avoid early clock doubling during HS400 transition
commit b1f856b172 upstream.

According to the hardware programming guide, the clock frequency must
remain below 52MHz during the transition to HS400 mode.

However,in the current implementation, the timing is set to HS400 (a
DDR mode) before adjusting the clock. This causes the clock to double
prematurely to 104MHz during the transition phase, violating the
specification and potentially resulting in CRC errors or CMD timeouts.

This change ensures that clock doubling is avoided during intermediate
transitions and is applied only when the card requires a 200MHz clock
for HS400 operation.

Signed-off-by: Sarthak Garg <sarthak.garg@oss.qualcomm.com>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-08 10:14:14 +01:00
Sai Krishna PotthuriandGreg Kroah-Hartman 52a3f9051d mmc: sdhci-of-arasan: Increase CD stable timeout to 2 seconds
commit a9c4c9085e upstream.

On Xilinx/AMD platforms, the CD stable bit take slightly longer than
one second(about an additional 100ms) to assert after a host
controller reset. Although no functional failure observed with the
existing one second delay but to ensure reliable initialization, increase
the CD stable timeout to 2 seconds.

Fixes: e251709aad ("mmc: sdhci-of-arasan: Ensure CD logic stabilization before power-up")
Cc: stable@vger.kernel.org
Signed-off-by: Sai Krishna Potthuri <sai.krishna.potthuri@amd.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-08 10:14:07 +01:00
Jared KangasandGreg Kroah-Hartman fd750d6866 mmc: sdhci-esdhc-imx: add alternate ARCH_S32 dependency to Kconfig
commit d3ecb12e2e upstream.

MMC_SDHCI_ESDHC_IMX requires ARCH_MXC despite also being used on
ARCH_S32, which results in unmet dependencies when compiling strictly
for ARCH_S32. Resolve this by adding ARCH_S32 as an alternative to
ARCH_MXC in the driver's dependencies.

Fixes: 5c4f00627c ("mmc: sdhci-esdhc-imx: add NXP S32G2 support")
Cc: stable@bvger.kernel.org
Signed-off-by: Jared Kangas <jkangas@redhat.com>
Reviewed-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-01-08 10:14:07 +01:00
Jisheng ZhangandGreg Kroah-Hartman ce3b827039 mmc: sdhci-of-dwcmshc: Promote the th1520 reset handling to ip level
commit 747528729c upstream.

Commit 27e8fe0da3 ("mmc: sdhci-of-dwcmshc: Prevent stale command
interrupt handling") clears pending interrupts when resetting
host->pending_reset to ensure no pending stale interrupts after
sdhci_threaded_irq restores interrupts. But this fix is only added for
th1520 platforms, in fact per my test, this issue exists on all
dwcmshc users, such as cv1800b, sg2002, and synaptics platforms.

So promote the above reset handling from th1520 to ip level. And keep
reset handling on rk, sg2042 and bf3 as is, until it's confirmed that
the same issue exists on these platforms too.

Fixes: 017199c284 ("mmc: sdhci-of-dwcmshc: Add support for Sophgo CV1800B and SG2002")
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-12-07 06:25:00 +09:00
Shawn LinandGreg Kroah-Hartman 8662995aaa mmc: dw_mmc-rockchip: Fix wrong internal phase calculate
commit 739f04f4a4 upstream.

ciu clock is 2 times of io clock, but the sample clk used is
derived from io clock provided to the card. So we should use
io clock to calculate the phase.

Fixes: 59903441f5 ("mmc: dw_mmc-rockchip: Add internal phase support")
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-11-24 10:36:01 +01:00
Shawn LinandGreg Kroah-Hartman 793245afc6 mmc: sdhci-of-dwcmshc: Change DLL_STRBIN_TAPNUM_DEFAULT to 0x4
commit a28352cf2d upstream.

strbin signal delay under 0x8 configuration is not stable after massive
test. The recommandation of it should be 0x4.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Tested-by: Alexey Charkov <alchark@gmail.com>
Tested-by: Hugh Cole-Baker <sigmaris@gmail.com>
Fixes: 08f3dff799 ("mmc: sdhci-of-dwcmshc: add rockchip platform support")
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-11-24 10:36:01 +01:00
Sarthak GargandGreg Kroah-Hartman 03d4d9a1d8 mmc: sdhci-msm: Enable tuning for SDR50 mode for SD card
[ Upstream commit 08b68ca543 ]

For Qualcomm SoCs which needs level shifter for SD card, extra delay is
seen on receiver data path.

To compensate this delay enable tuning for SDR50 mode for targets which
has level shifter. SDHCI_SDR50_NEEDS_TUNING caps will be set for targets
with level shifter on Qualcomm SOC's.

Signed-off-by: Sarthak Garg <quic_sartgarg@quicinc.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-11-13 15:34:05 -05:00
Biju DasandGreg Kroah-Hartman 37aa3afbf8 mmc: host: renesas_sdhi: Fix the actual clock
[ Upstream commit 9c174e4dac ]

Wrong actual clock reported, if the SD clock division ratio is other
than 1:1(bits DIV[7:0] in SD_CLK_CTRL are set to 11111111).

On high speed mode, cat /sys/kernel/debug/mmc1/ios
Without the patch:
clock:          50000000 Hz
actual clock:   200000000 Hz

After the fix:
clock:          50000000 Hz
actual clock:   50000000 Hz

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20250629203859.170850-1-biju.das.jz@bp.renesas.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-11-13 15:34:02 -05:00
Rex ChenandGreg Kroah-Hartman 99141fc03c mmc: mmc_spi: multiple block read remove read crc ack
commit fef12d9f5b upstream.

For multiple block read, the current implementation, transfer packet
includes cmd53 + cmd53 response + block nums*(1byte token +
block length bytes payload + 2bytes CRC + 1byte transfer), the last
1byte transfer of every block is not needed, so remove it.

Why doesn't multiple block read need CRC ack?
For read operation, host side get the payload and CRC value, then
will only check the CRC value to confirm if the data is correct or
not, but not send CRC ack to card. If the data is correct, save it,
or discard it and retransmit if data is error, so the last 1byte
transfer of every block make no sense.

What's the side effect of this 1byte transfer?
As the SPI is full duplex, if add this redundant 1byte transfer, SDIO
card side take it as the token of next block, then all the next sub
blocks sequence distort.

Signed-off-by: Rex Chen <rex.chen_1@nxp.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250728082230.1037917-3-rex.chen_1@nxp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-10-19 16:33:54 +02:00
Rex ChenandGreg Kroah-Hartman cb7a1f5e29 mmc: core: SPI mode remove cmd7
commit fec40f44af upstream.

SPI mode doesn't support cmd7, so remove it in mmc_sdio_alive() and
confirm if sdio is active by checking CCCR register value is available
or not.

Signed-off-by: Rex Chen <rex.chen_1@nxp.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250728082230.1037917-2-rex.chen_1@nxp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-10-19 16:33:54 +02:00
Bean HuoandGreg Kroah-Hartman 13f46cfa49 mmc: core: Fix variable shadowing in mmc_route_rpmb_frames()
[ Upstream commit 072755cca7 ]

Rename the inner 'frm' variable to 'resp_frm' in the write path of
mmc_route_rpmb_frames() to avoid shadowing the outer 'frm' variable.

The function declares 'frm' at function scope pointing to the request
frame, but then redeclares another 'frm' variable inside the write
block pointing to the response frame. This shadowing makes the code
confusing and error-prone.

Using 'resp_frm' for the response frame makes the distinction clear
and improves code readability.

Fixes: 7852028a35 ("mmc: block: register RPMB partition with the RPMB subsystem")
Reviewed-by: Avri Altman <avri.altman@sandisk.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-15 12:00:00 +02:00
Benoît MoninandGreg Kroah-Hartman aaac704646 mmc: sdhci-cadence: add Mobileye eyeQ support
[ Upstream commit 120ffe250d ]

The MMC/SDHCI controller implemented by Mobileye needs the preset value
quirks to configure the clock properly at speed slower than HS200.
It otherwise works as a standard sd4hc controller.

Signed-off-by: Benoît Monin <benoit.monin@bootlin.com>
Link: https://lore.kernel.org/r/e97f409650495791e07484589e1666ead570fa12.1750156323.git.benoit.monin@bootlin.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:06 +02:00
Thomas FourierandGreg Kroah-Hartman bd5524ec71 mmc: mvsdio: Fix dma_unmap_sg() nents value
commit 8ab2f1c356 upstream.

The dma_unmap_sg() functions should be called with the same nents as the
dma_map_sg(), not the value the map function returned.

Fixes: 236caa7cc3 ("mmc: SDIO driver for Marvell SoCs")
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-09-25 11:13:46 +02:00
Sai Krishna PotthuriandGreg Kroah-Hartman 863443b028 mmc: sdhci-of-arasan: Ensure CD logic stabilization before power-up
[ Upstream commit e251709aad ]

During SD suspend/resume without a full card rescan (when using
non-removable SD cards for rootfs), the SD card initialization may fail
after resume. This occurs because, after a host controller reset, the
card detect logic may take time to stabilize due to debounce logic.
Without waiting for stabilization, the host may attempt powering up the
card prematurely, leading to command timeouts during resume flow.
Add sdhci_arasan_set_power_and_bus_voltage() to wait for the card detect
stable bit before power up the card. Since the stabilization time
is not fixed, a maximum timeout of one second is used to ensure
sufficient wait time for the card detect signal to stabilize.

Signed-off-by: Sai Krishna Potthuri <sai.krishna.potthuri@amd.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250730060543.1735971-1-sai.krishna.potthuri@amd.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-09-09 18:58:05 +02:00
Paul AlvinandGreg Kroah-Hartman b32990fb57 mmc: sdhci-of-arasan: Support for emmc hardware reset
[ Upstream commit 11c7d66518 ]

Add hw_reset callback to support emmc hardware reset, this callback get
called from the mmc core only when "cap-mmc-hw-reset" property is
defined in the DT.

Signed-off-by: Paul Alvin <alvin.paulp@amd.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20241007095445.19340-1-alvin.paulp@amd.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Stable-dep-of: e251709aad ("mmc: sdhci-of-arasan: Ensure CD logic stabilization before power-up")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-09-09 18:58:05 +02:00
Judith MendezandGreg Kroah-Hartman baa11a683d mmc: sdhci_am654: Disable HS400 for AM62P SR1.0 and SR1.1
commit d2d7a96b29 upstream.

This adds SDHCI_AM654_QUIRK_DISABLE_HS400 quirk which shall be used
to disable HS400 support. AM62P SR1.0 and SR1.1 do not support HS400
due to errata i2458 [0] so disable HS400 for these SoC revisions.

[0] https://www.ti.com/lit/er/sprz574a/sprz574a.pdf
Fixes: 37f2816551 ("arm64: dts: ti: k3-am62p: Add ITAP/OTAP values for MMC")
Cc: stable@vger.kernel.org
Signed-off-by: Judith Mendez <jm@ti.com>
Reviewed-by: Andrew Davis <afd@ti.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20250820193047.4064142-1-jm@ti.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
[ adapted quirk bit assignment from BIT(2) to BIT(1) ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-28 16:31:08 +02:00
Victor ShihandGreg Kroah-Hartman a9f726bd10 mmc: sdhci-pci-gli: GL9763e: Rename the gli_set_gl9763e() for consistency
commit 293ed0f5f3 upstream.

In preparation to fix replay timer timeout, rename the
gli_set_gl9763e() to gl9763e_hw_setting() for consistency.

Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw>
Fixes: 1ae1d2d6e5 ("mmc: sdhci-pci-gli: Add Genesys Logic GL9763E support")
Cc: stable@vger.kernel.org
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20250731065752.450231-3-victorshihgli@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-28 16:31:05 +02:00
Victor ShihandGreg Kroah-Hartman 2911c2e05c mmc: sdhci-pci-gli: GL9763e: Mask the replay timer timeout of AER
commit 340be332e4 upstream.

Due to a flaw in the hardware design, the GL9763e replay timer frequently
times out when ASPM is enabled. As a result, the warning messages will
often appear in the system log when the system accesses the GL9763e
PCI config. Therefore, the replay timer timeout must be masked.

Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw>
Fixes: 1ae1d2d6e5 ("mmc: sdhci-pci-gli: Add Genesys Logic GL9763E support")
Cc: stable@vger.kernel.org
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20250731065752.450231-4-victorshihgli@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-28 16:31:05 +02:00
Victor ShihandGreg Kroah-Hartman d7dfbda8ee mmc: sdhci-pci-gli: Add a new function to simplify the code
commit dec8b38be4 upstream.

In preparation to fix replay timer timeout, add
sdhci_gli_mask_replay_timer_timeout() function
to simplify some of the code, allowing it to be re-used.

Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw>
Fixes: 1ae1d2d6e5 ("mmc: sdhci-pci-gli: Add Genesys Logic GL9763E support")
Cc: stable@vger.kernel.org
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20250731065752.450231-2-victorshihgli@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-28 16:31:05 +02:00
Ulf HanssonandGreg Kroah-Hartman af34cc8c5e mmc: rtsx_usb_sdmmc: Fix error-path in sd_set_power_mode()
[ Upstream commit 47a255f7d2 ]

In the error path of sd_set_power_mode() we don't update host->power_mode,
which could lead to an imbalance of the runtime PM usage count. Fix this by
always updating host->power_mode.

Reviewed-by: Avri Altman <avri.altman@sandisk.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Ricky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20250610111633.504366-2-ulf.hansson@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-08-20 18:30:25 +02:00
Sarthak GargandGreg Kroah-Hartman 6f38d9ae4b mmc: sdhci-msm: Ensure SD card power isn't ON when card removed
[ Upstream commit db58532188 ]

Many mobile phones feature multi-card tray designs, where the same
tray is used for both SD and SIM cards. If the SD card is placed
at the outermost location in the tray, the SIM card may come in
contact with SD card power-supply while removing the tray, possibly
resulting in SIM damage.

To prevent that, make sure the SD card is really inserted by reading
the Card Detect pin state. If it's not, turn off the power in
sdhci_msm_check_power_status() and also set the BUS_FAIL power state
on the controller as part of pwr_irq handling for BUS_ON request.

Signed-off-by: Sarthak Garg <quic_sartgarg@quicinc.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20250701100659.3310386-1-quic_sartgarg@quicinc.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-08-20 18:30:25 +02:00
Judith MendezandGreg Kroah-Hartman 516cd0943a mmc: sdhci_am654: Workaround for Errata i2312
commit 6d0b1c0184 upstream.

Errata i2312 [0] for K3 silicon mentions the maximum obtainable
timeout through MMC host controller is 700ms. And for commands taking
longer than 700ms, hardware timeout should be disabled and software
timeout should be used.

The workaround for Errata i2312 can be achieved by adding
SDHCI_QUIRK2_DISABLE_HW_TIMEOUT quirk in sdhci_am654.

[0] https://www.ti.com/lit/pdf/sprz487

Signed-off-by: Judith Mendez <jm@ti.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Fixes: 41fd4caeb0 ("mmc: sdhci_am654: Add Initial Support for AM654 SDHCI driver")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250626231452.3460987-1-jm@ti.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-24 08:56:26 +02:00
Edson Juliano DrosdeckandGreg Kroah-Hartman 5280e0b8bc mmc: sdhci-pci: Quirk for broken command queuing on Intel GLK-based Positivo models
commit 50c78f398e upstream.

Disable command queuing on Intel GLK-based Positivo models.

Without this quirk, CQE (Command Queuing Engine) causes instability
or I/O errors during operation. Disabling it ensures stable
operation on affected devices.

Signed-off-by: Edson Juliano Drosdeck <edson.drosdeck@gmail.com>
Fixes: bedf9fc01f ("mmc: sdhci: Workaround broken command queuing on Intel GLK")
Cc: stable@vger.kernel.org
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20250626112442.9791-1-edson.drosdeck@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-24 08:56:26 +02:00
Thomas FourierandGreg Kroah-Hartman 6198bfe1af mmc: bcm2835: Fix dma_unmap_sg() nents value
commit ff09b71bf9 upstream.

The dma_unmap_sg() functions should be called with the same nents as the
dma_map_sg(), not the value the map function returned.

Fixes: 2f5da67835 ("mmc: bcm2835: Properly handle dmaengine_prep_slave_sg")
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250630093510.82871-2-fourier.thomas@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-24 08:56:26 +02:00
Sergey SenozhatskyandGreg Kroah-Hartman ca40e57b22 mtk-sd: reset host->mrq on prepare_data() error
commit ec54c0a207 upstream.

Do not leave host with dangling ->mrq pointer if we hit
the msdc_prepare_data() error out path.

Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Fixes: f5de469990 ("mtk-sd: Prevent memory corruption from DMA map failure")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250625052106.584905-1-senozhatsky@chromium.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-10 16:04:44 +02:00
Masami Hiramatsu (Google)andGreg Kroah-Hartman 3419bc6a7b mtk-sd: Prevent memory corruption from DMA map failure
commit f5de469990 upstream.

If msdc_prepare_data() fails to map the DMA region, the request is
not prepared for data receiving, but msdc_start_data() proceeds
the DMA with previous setting.
Since this will lead a memory corruption, we have to stop the
request operation soon after the msdc_prepare_data() fails to
prepare it.

Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Fixes: 208489032b ("mmc: mediatek: Add Mediatek MMC driver")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/174972756982.3337526.6755001617701603082.stgit@mhiramat.tok.corp.google.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-10 16:04:43 +02:00
Masami Hiramatsu (Google)andGreg Kroah-Hartman cfbdcabab2 mtk-sd: Fix a pagefault in dma_unmap_sg() for not prepared data
commit 539d80575b upstream.

When swiotlb buffer is full, the dma_map_sg() returns 0 to
msdc_prepare_data(), but it does not check it and sets the
MSDC_PREPARE_FLAG.

swiotlb_tbl_map_single() /* prints "swiotlb buffer is full" */
  <-swiotlb_map()
    <-dma_direct_map_page()
      <-dma_direct_map_sg()
        <-__dma_map_sg_attrs()
          <-dma_map_sg_attrs()
            <-dma_map_sg()  /* returns 0 (pages mapped) */
              <-msdc_prepare_data()

Then, the msdc_unprepare_data() checks MSDC_PREPARE_FLAG and calls
dma_unmap_sg() with unmapped pages. It causes a page fault.

To fix this problem, Do not set MSDC_PREPARE_FLAG if dma_map_sg()
fails because this is not prepared.

Fixes: 208489032b ("mmc: mediatek: Add Mediatek MMC driver")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Tested-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/174908565814.4056588.769599127120955383.stgit@mhiramat.tok.corp.google.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-10 16:04:43 +02:00
Avri AltmanandGreg Kroah-Hartman 50345c9369 mmc: core: sd: Apply BROKEN_SD_DISCARD quirk earlier
commit 009c3a4bc4 upstream.

Move the BROKEN_SD_DISCARD quirk for certain SanDisk SD cards from the
`mmc_blk_fixups[]` to `mmc_sd_fixups[]`. This ensures the quirk is
applied earlier in the device initialization process, aligning with the
reasoning in [1]. Applying the quirk sooner prevents the kernel from
incorrectly enabling discard support on affected cards during initial
setup.

[1] https://lore.kernel.org/all/20240820230631.GA436523@sony.com

Fixes: 07d2872bf4 ("mmc: core: Add SD card quirk for broken discard")
Signed-off-by: Avri Altman <avri.altman@sandisk.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250526114445.675548-1-avri.altman@sandisk.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-10 16:04:42 +02:00
Ulf HanssonandGreg Kroah-Hartman ec9be081c5 Revert "mmc: sdhci: Disable SD card clock before changing parameters"
commit dcc3bcfc5b upstream.

It has turned out the trying to strictly conform to the SDHCI specification
is causing problems. Let's revert and start over.

This reverts commit fb3bbc46c9.

Cc: Erick Shepherd <erick.shepherd@ni.com>
Cc: stable@vger.kernel.org
Fixes: fb3bbc46c9 ("mmc: sdhci: Disable SD card clock before changing parameters")
Suggested-by: Adrian Hunter <adrian.hunter@intel.com>
Reported-by: Jonathan Liu <net147@gmail.com>
Reported-by: Salvatore Bonaccorso <carnil@debian.org>
Closes: https://bugs.debian.org/1108065
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250624110932.176925-1-ulf.hansson@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-10 16:04:42 +02:00
Victor ShihandGreg Kroah-Hartman cf7235914d mmc: sdhci: Add a helper function for dump register in dynamic debug mode
commit 2881ba9af0 upstream.

Add a helper function for dump register in dynamic debug mode.

Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250606110121.96314-3-victorshihgli@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-10 16:04:42 +02:00
Erick ShepherdandGreg Kroah-Hartman ddec63e2dd mmc: Add quirk to disable DDR50 tuning
[ Upstream commit 9510b38dc0 ]

Adds the MMC_QUIRK_NO_UHS_DDR50_TUNING quirk and updates
mmc_execute_tuning() to return 0 if that quirk is set. This fixes an
issue on certain Swissbit SD cards that do not support DDR50 tuning
where tuning requests caused I/O errors to be thrown.

Signed-off-by: Erick Shepherd <erick.shepherd@ni.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20250331221337.1414534-1-erick.shepherd@ni.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-27 11:11:26 +01:00
Nicolas FrattaroliandGreg Kroah-Hartman b8de1a5029 mmc: sdhci-of-dwcmshc: add PD workaround on RK3576
[ Upstream commit 08f959759e ]

RK3576's power domains have a peculiar design where the PD_NVM power
domain, of which the sdhci controller is a part, seemingly does not have
idempotent runtime disable/enable. The end effect is that if PD_NVM gets
turned off by the generic power domain logic because all the devices
depending on it are suspended, then the next time the sdhci device is
unsuspended, it'll hang the SoC as soon as it tries accessing the CQHCI
registers.

RK3576's UFS support needed a new dev_pm_genpd_rpm_always_on function
added to the generic power domains API to handle what appears to be a
similar hardware design.

Use this new function to ask for the same treatment in the sdhci
controller by giving rk3576 its own platform data with its own postinit
function. The benefit of doing this instead of marking the power domains
always on in the power domain core is that we only do this if we know
the platform we're running on actually uses the sdhci controller. For
others, keeping PD_NVM always on would be a waste, as they won't run
into this specific issue. The only other IP in PD_NVM that could be
affected is FSPI0. If it gets a mainline driver, it will probably want
to do the same thing.

Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Fixes: cfee1b5077 ("pmdomain: rockchip: Add support for RK3576 SoC")
Cc: <stable@vger.kernel.org> # v6.15+
Link: https://lore.kernel.org/r/20250423-rk3576-emmc-fix-v3-1-0bf80e29967f@collabora.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-19 15:32:23 +02:00
Erick ShepherdandGreg Kroah-Hartman 28306c58da mmc: sdhci: Disable SD card clock before changing parameters
[ Upstream commit fb3bbc46c9 ]

Per the SD Host Controller Simplified Specification v4.20 §3.2.3, change
the SD card clock parameters only after first disabling the external card
clock. Doing this fixes a spurious clock pulse on Baytrail and Apollo Lake
SD controllers which otherwise breaks voltage switching with a specific
Swissbit SD card.

Signed-off-by: Kyle Roeschley <kyle.roeschley@ni.com>
Signed-off-by: Brad Mouring <brad.mouring@ni.com>
Signed-off-by: Erick Shepherd <erick.shepherd@ni.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20250211214645.469279-1-erick.shepherd@ni.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-29 11:02:21 +02:00
Kaustabh ChakrabortyandGreg Kroah-Hartman 38828e0dc7 mmc: dw_mmc: add exynos7870 DW MMC support
[ Upstream commit 7cbe799ac1 ]

Add support for Exynos7870 DW MMC controllers, for both SMU and non-SMU
variants. These controllers require a quirk to access 64-bit FIFO in 32-bit
accesses (DW_MMC_QUIRK_FIFO64_32).

Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Link: https://lore.kernel.org/r/20250219-exynos7870-mmc-v2-3-b4255a3e39ed@disroot.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-29 11:02:21 +02:00
Erick ShepherdandGreg Kroah-Hartman 67bb217509 mmc: host: Wait for Vdd to settle on card power off
[ Upstream commit 31e75ed964 ]

The SD spec version 6.0 section 6.4.1.5 requires that Vdd must be
lowered to less than 0.5V for a minimum of 1 ms when powering off a
card. Increase wait to 15 ms so that voltage has time to drain down
to 0.5V and cards can power off correctly. Issues with voltage drain
time were only observed on Apollo Lake and Bay Trail host controllers
so this fix is limited to those devices.

Signed-off-by: Erick Shepherd <erick.shepherd@ni.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20250314195021.1588090-1-erick.shepherd@ni.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-29 11:02:10 +02:00
Ruslan PiasetskyiandGreg Kroah-Hartman 20a28e0ece mmc: renesas_sdhi: Fix error handling in renesas_sdhi_probe
commit 649b50a82f upstream.

After moving tmio_mmc_host_probe down, error handling has to be
adjusted.

Fixes: 74f45de394 ("mmc: renesas_sdhi: register irqs before registering controller")
Reviewed-by: Ihar Salauyou <salauyou.ihar@gmail.com>
Signed-off-by: Ruslan Piasetskyi <ruslan.piasetskyi@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250326220638.460083-1-ruslan.piasetskyi@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-09 09:50:32 +02:00