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In next commits, we will switch to the modern PM macros.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20250815013413.28641-2-jszhang@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Add infrastructure to handle regulator undervoltage events for MMC/eMMC
cards. When an undervoltage is detected, the new handler performs a
controlled emergency suspend using a short power-off notification,
skipping the cache flush to maximize the chance of a safe shutdown.
After the operation, the card is marked as removed to prevent further
I/O and possible data corruption.
This is implemented by introducing MMC_POWEROFF_UNDERVOLTAGE to the
mmc_poweroff_type enum and refactoring the suspend logic into an
internal __mmc_suspend() helper that allows the caller to skip the cache
flush if required. The undervoltage handler is registered as a bus
operation and invoked from the core undervoltage path.
If power-off notification is not supported by the card, the handler
falls back to sleep or deselecting the card.
Additionally, update the shutdown path to avoid redundant shutdown
steps if the card is already removed
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20250821130751.2089587-3-o.rempel@pengutronix.de
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Implement the core infrastructure to allow MMC bus types to handle
REGULATOR_EVENT_UNDER_VOLTAGE events from power regulators. This is
primarily aimed at allowing devices like eMMC to perform an emergency
shutdown to prevent data corruption when a power failure is imminent.
This patch introduces:
- A new 'handle_undervoltage' function pointer to 'struct mmc_bus_ops'.
Bus drivers (e.g., for eMMC) can implement this to define their
emergency procedures.
- A workqueue ('uv_work') in 'struct mmc_supply' to handle the event
asynchronously in a high-priority context.
- A new function 'mmc_handle_undervoltage()' which is called from the
workqueue. It stops the host queue to prevent races with card removal,
checks for the bus op, and invokes the handler.
- Functions to register and unregister the regulator notifier, intended
to be called by bus drivers like 'mmc_attach_mmc' when a compatible
card is detected.
The notifier is only registered for the main vmmc supply, as
undervoltage handling for vqmmc or vqmmc2 is not required at this
time.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20250821130751.2089587-2-o.rempel@pengutronix.de
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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If rtsx_usb_get_card_status() fails then "val" isn't initialized.
Move the use of "val" until after the error checking.
Fixes: d2e6fb2c31a0 ("misc: rtsx: usb card reader: add OCP support")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/aKcR8QD81TjVqIhl@stanley.mountain
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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An earlier commit changed the outer if statement from
"if (multiple || write) {" to "if (write) {" so now we know that "write"
is true and no longer need to check. Delete the unnecessary check.
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/aKcR2ea747xkw_it@stanley.mountain
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Different bus clocks require different pinctrl states to remain stable.
Add support for selecting between a default and UHS state according to
the bus clock.
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Duje Mihanović <duje@dujemihanovic.xyz>
Link: https://lore.kernel.org/r/20250821-pxav3-uhs-v4-2-bb588314f3c3@dujemihanovic.xyz
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Merge the mmc fixes for v6.17-rc[n] into the next branch, to allow them to
get tested together with the new mmc changes that are targeted for v6.18.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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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: 37f28165518f ("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>
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Replace the magic number '0xff' with CLK_CTL_DIV_MASK macro for finding
actual clock in renesas_sdhi_set_clock().
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20250820104808.94562-1-biju.das.jz@bp.renesas.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Clang warns (or errors with CONFIG_WERROR=y):
drivers/mmc/host/sdhci-cadence.c:297:9: error: variable 'hrs37_mode' is uninitialized when used here [-Werror,-Wuninitialized]
297 | writel(hrs37_mode, hrs37_reg);
| ^~~~~~~~~~
drivers/mmc/host/sdhci-cadence.c:291:16: note: initialize the variable 'hrs37_mode' to silence this warning
291 | u32 hrs37_mode;
| ^
| = 0
A previous revision assigned SDHCI_CDNS_HRS37_MODE_MMC_HS200 to
hrs37_mode in a switch statement but the final revision moved to a
simple if statement. Pass that as the value to writel() and
remove hrs37_mode, clearing up the warning.
Fixes: 60613a8b9b81 ("mmc: sdhci-cadence: implement multi-block read gap tuning")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Benoît Monin <benoit.monin@bootlin.com>
Link: https://lore.kernel.org/r/20250819-mmc-sdhci-cadence-fix-uninit-hrs37_mode-v1-1-94aa2d0c438a@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Merge the mmc fixes for v6.17-rc[n] into the next branch, to allow them to
get tested together with the new mmc changes that are targeted for v6.18.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The controller suspends the clock between blocks when reading from the
MMC as part of its flow-control, called read block gap. At higher clock
speed and with IO delay between the controller and the MMC, this clock
pause can happen too late, during the read of the next block and
trigger a read error.
To prevent this, the delay can be programmed for each mode via the pair
of registers HRS37/38. This delay is obtained during tuning, by trying
a multi-block read and increasing the delay until the read succeeds.
For now, the tuning is only done in HS200, as the read error has only
been observed at that speed.
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Benoît Monin <benoit.monin@bootlin.com>
Link: https://lore.kernel.org/r/20250818-mobileye-emmc-for-upstream-4-v4-6-34ecb3995e96@bootlin.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Provide a function to the MMC hosts to read some blocks of data as part
of their tuning.
This function only returns the status of the read operation, not the
data read.
Signed-off-by: Benoît Monin <benoit.monin@bootlin.com>
Link: https://lore.kernel.org/r/20250818-mobileye-emmc-for-upstream-4-v4-5-34ecb3995e96@bootlin.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Use the dedicated helpers for CMD23 card support.
Signed-off-by: Benoît Monin <benoit.monin@bootlin.com>
Link: https://lore.kernel.org/r/20250818-mobileye-emmc-for-upstream-4-v4-4-34ecb3995e96@bootlin.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Use mmc_card_can_cmd23 instead of using a local and partial
implementation, and check for the CMD23 quirk with
mmc_card_blk_no_cmd23.
Signed-off-by: Benoît Monin <benoit.monin@bootlin.com>
Link: https://lore.kernel.org/r/20250818-mobileye-emmc-for-upstream-4-v4-3-34ecb3995e96@bootlin.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Add a helper to check for the missing CMD23 quirk, similar to other
quirk helpers. Also reorder the helpers to match the order of the quirk
bits defined in include/linux/mmc/card.h.
Signed-off-by: Benoît Monin <benoit.monin@bootlin.com>
Link: https://lore.kernel.org/r/20250818-mobileye-emmc-for-upstream-4-v4-2-34ecb3995e96@bootlin.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Add a dedicated helper to check for CMD23 support for MMC card, similar
to mmc_host_can_cmd23 for the host, as it is easy to get the check
wrong.
Signed-off-by: Benoît Monin <benoit.monin@bootlin.com>
Link: https://lore.kernel.org/r/20250818-mobileye-emmc-for-upstream-4-v4-1-34ecb3995e96@bootlin.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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When using MMIO with regmap, fast_io is implied. No need to set it
again.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20250813161517.4746-11-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Use the standard error pointer macro to shorten the code and simplify.
Signed-off-by: Xichao Zhao <zhao.xichao@vivo.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20250812092908.101867-1-zhao.xichao@vivo.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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This patch adds support for Over Current Protection (OCP) to the Realtek
USB card reader driver.
The OCP mechanism protects the hardware by detecting and handling current
overload conditions.
This implementation includes:
- Register configurations to enable OCP monitoring.
- Handling of OCP interrupt events and associated error reporting.
- Card power management changes in response to OCP triggers.
This enhancement improves the robustness of the driver when operating in
environments where electrical anomalies may occur, particularly with SD
and MS card interfaces.
Signed-off-by: Ricky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20250812030811.2426112-1-ricky_wu@realtek.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Enable 64-bit polling mode for R-Car gen3 and RZ/G2L SoCs.
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20250730164618.233117-3-biju.das.jz@bp.renesas.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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As per the RZ/{G2L,G3E} HW manual SD_BUF0 can be accessed by 16/32/64
bits. Most of the data transfer in SD/SDIO/eMMC mode is more than 8 bytes.
During testing it is found that, if the DMA buffer is not aligned to 128
bit it fallback to PIO mode. In such cases, 64-bit access is much more
efficient than the current 16-bit.
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20250730164618.233117-2-biju.das.jz@bp.renesas.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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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>
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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>
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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>
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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>
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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: 1ae1d2d6e555 ("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>
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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: 1ae1d2d6e555 ("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>
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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: 1ae1d2d6e555 ("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>
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There is a extraneous space before a newline in a dev_err message.
Remove the space.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20250731094116.2163061-1-colin.i.king@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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There are two spelling mistakes in the config. Fix them.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20250724112817.142784-1-colin.i.king@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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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. This change is limited to Intel host controllers to
avoid an issue reported on ARM64 devices.
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/20250724185354.815888-1-erick.shepherd@ni.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Instances are happier that way and it makes more sense anyway -
the only part of the result that is related to partition we are given
is the start sector, and that has been filled in by the caller.
Everything else is a function of the disk. Only one instance
(DASD) is ever looking at anything other than bdev->bd_disk and
that one is trivial to adjust.
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Pull MMC updates from Ulf Hansson:
"MMC core:
- Remove redundant pm_runtime_mark_last_busy() calls
MMC host:
- Convert drivers to use devm_mmc_alloc_host()
- Remove redundant pm_runtime_mark_last_busy() calls
- renesas_sdhi:
- Add support for the RZ/T2H and RZ/N2H variants
- Fix incorrect auto retuning for an SDIO card
- rtsx_usb_sdmmc:
- Add 74 clocks in poweron flow
- Re-work the code in sd_set_power_mode()
- loongson2:
- Add driver for the Loongson-2K SD/SDIO controller
- Add support for the Loongson-2K2000 SD/SDIO/eMMC controller
- sdhci:
- Drop sdhci_free_host()/sdhci_pltfm_free() interface
- Remove the sdhci_free_host() and sdhci_pltfm_free() helpers
- sdhci-cadence: Add support for the Mobileye EyeQ controller
- sdhci-esdhc-imx:
- Optimize clock loopback selection
- Don't change pinctrl in suspend if wakeup source
- sdhci-msm:
- Add support for the Milos variant
- Add support for the qcs8300 variant
- Ensure SD card power isn't ON when card gets removed
- sdhci-of-k1: Disable HW busy detection"
* tag 'mmc-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (102 commits)
mmc: loongson2: Unify the function prefixes for loongson2_mmc_pdata
mmc: loongson2: Fix error code in loongson2_mmc_resource_request()
dt-bindings: mmc: sdhci-msm: document the Milos SDHCI Controller
mmc: loongson2: prevent integer overflow in ret variable
mmc: Remove redundant pm_runtime_mark_last_busy() calls
mmc: sdhci-msm: Ensure SD card power isn't ON when card removed
dt-bindings: mmc: Add sdhci compatible for qcs8300
mmc: sdhci-cadence: use of_property_present
mmc: loongson2: Add Loongson-2K2000 SD/SDIO/eMMC controller driver
dt-bindings: mmc: loongson,ls2k0500-mmc: Add compatible for Loongson-2K2000
mmc: loongson2: Add Loongson-2K SD/SDIO controller driver
dt-bindings: mmc: Add Loongson-2K SD/SDIO/eMMC controller binding
mmc: Convert ternary operator to str_true_false() helper
dt-bindings: mmc: renesas,sdhi: Document RZ/T2H and RZ/N2H support
mmc: sdhci-cadence: add Mobileye eyeQ support
dt-bindings: mmc: cdns: add Mobileye EyeQ MMC/SDHCI controller
mmc: rtsx_usb_sdmmc: Fix clang -Wimplicit-fallthrough in sd_set_power_mode()
mmc: cb710-mmc: Convert ternary operator to str_plural() helper
mmc: rtsx_usb_sdmmc: Add 74 clocks in poweron flow
mmc: rtsx_usb_sdmmc: Re-work the code in sd_set_power_mode()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"As is tradition, cpufreq is the part with the largest number of
updates that include core fixes and cleanups as well as updates of
several assorted drivers, but there are also quite a few updates
related to system sleep, mostly focused on asynchronous suspend and
resume of devices and on making the integration of system suspend
and resume with runtime PM easier.
Runtime PM is also updated to allow some code duplication in drivers
to be eliminated going forward and to work more consistently overall
in some cases.
Apart from that, there are some driver core updates related to PM
domains that should help to address ordering issues with devm_ cleanup
routines relying on PM domains, some assorted devfreq updates
including core fixes and cleanups, tooling updates, and documentation
and MAINTAINERS updates.
Specifics:
- Fix two initialization ordering issues in the cpufreq core and a
governor initialization error path in it, and clean it up (Lifeng
Zheng)
- Add Granite Rapids support in no-HWP mode to the intel_pstate
cpufreq driver (Li RongQing)
- Make intel_pstate always use HWP_DESIRED_PERF when operating in the
passive mode (Rafael Wysocki)
- Allow building the tegra124 cpufreq driver as a module (Aaron
Kling)
- Do minor cleanups for Rust cpufreq and cpumask APIs and fix
MAINTAINERS entry for cpu.rs (Abhinav Ananthu, Ritvik Gupta, Lukas
Bulwahn)
- Clean up assorted cpufreq drivers (Arnd Bergmann, Dan Carpenter,
Krzysztof Kozlowski, Sven Peter, Svyatoslav Ryhel, Lifeng Zheng)
- Add the NEED_UPDATE_LIMITS flag to the CPPC cpufreq driver
(Prashant Malani)
- Fix minimum performance state label error in the amd-pstate driver
documentation (Shouye Liu)
- Add the CPUFREQ_GOV_STRICT_TARGET flag to the userspace cpufreq
governor and explain HW coordination influence on it in the
documentation (Shashank Balaji)
- Fix opencoded for_each_cpu() in idle_state_valid() in the DT
cpuidle driver (Yury Norov)
- Remove info about non-existing QoS interfaces from the PM QoS
documentation (Ulf Hansson)
- Use c_* types via kernel prelude in Rust for OPP (Abhinav Ananthu)
- Add HiSilicon uncore frequency scaling driver to devfreq (Jie Zhan)
- Allow devfreq drivers to add custom sysfs ABIs (Jie Zhan)
- Simplify the sun8i-a33-mbus devfreq driver by using more devm
functions (Uwe Kleine-König)
- Fix an index typo in trans_stat() in devfreq (Chanwoo Choi)
- Check devfreq governor before using governor->name (Lifeng Zheng)
- Remove a redundant devfreq_get_freq_range() call from
devfreq_add_device() (Lifeng Zheng)
- Limit max_freq with scaling_min_freq in devfreq (Lifeng Zheng)
- Replace sscanf() with kstrtoul() in set_freq_store() (Lifeng Zheng)
- Extend the asynchronous suspend and resume of devices to handle
suppliers like parents and consumers like children (Rafael Wysocki)
- Make pm_runtime_force_resume() work for drivers that set the
DPM_FLAG_SMART_SUSPEND flag and allow PCI drivers and drivers that
collaborate with the general ACPI PM domain to set it (Rafael
Wysocki)
- Add kernel parameter to disable asynchronous suspend/resume of
devices (Tudor Ambarus)
- Drop redundant might_sleep() calls from some functions in the
device suspend/resume core code (Zhongqiu Han)
- Fix the handling of monitors connected right before waking up the
system from sleep (tuhaowen)
- Clean up MAINTAINERS entries for suspend and hibernation (Rafael
Wysocki)
- Fix error code path in the KEXEC_JUMP flow and drop a redundant
pm_restore_gfp_mask() call from it (Rafael Wysocki)
- Rearrange suspend/resume error handling in the core device suspend
and resume code (Rafael Wysocki)
- Fix up white space that does not follow coding style in the
hibernation core code (Darshan Rathod)
- Document return values of suspend-related API functions in the
runtime PM framework (Sakari Ailus)
- Mark last busy stamp in multiple autosuspend-related functions in
the runtime PM framework and update its documentation (Sakari
Ailus)
- Take active children into account in pm_runtime_get_if_in_use() for
consistency (Rafael Wysocki)
- Fix NULL pointer dereference in get_pd_power_uw() in the dtpm_cpu
power capping driver (Sivan Zohar-Kotzer)
- Add support for the Bartlett Lake platform to the Intel RAPL power
capping driver (Qiao Wei)
- Add PL4 support for Panther Lake to the intel_rapl_msr power
capping driver (Zhang Rui)
- Update contact information in the PM ABI docs and maintainer
information in the power domains DT binding (Rafael Wysocki)
- Update PM header inclusions to follow the IWYU (Include What You
Use) principle (Andy Shevchenko)
- Add flags to specify power on attach/detach for PM domains, make
the driver core detach PM domains in device_unbind_cleanup(), and
drop the dev_pm_domain_detach() call from the platform bus type
(Claudiu Beznea)
- Improve Python binding's Makefile for cpupower (John B. Wyatt IV)
- Fix printing of CORE, CPU fields in cpupower-monitor (Gautham
Shenoy)"
* tag 'pm-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (75 commits)
cpufreq: CPPC: Mark driver with NEED_UPDATE_LIMITS flag
PM: docs: Use my kernel.org address in ABI docs and DT bindings
PM: hibernate: Fix up white space that does not follow coding style
PM: sleep: Rearrange suspend/resume error handling in the core
Documentation: amd-pstate:fix minimum performance state label error
PM: runtime: Take active children into account in pm_runtime_get_if_in_use()
kexec_core: Drop redundant pm_restore_gfp_mask() call
kexec_core: Fix error code path in the KEXEC_JUMP flow
PM: sleep: Clean up MAINTAINERS entries for suspend and hibernation
drivers: cpufreq: add Tegra114 support
rust: cpumask: Replace `MaybeUninit` and `mem::zeroed` with `Opaque` APIs
cpufreq: Exit governor when failed to start old governor
cpufreq: Move the check of cpufreq_driver->get into cpufreq_verify_current_freq()
cpufreq: Init policy->rwsem before it may be possibly used
cpufreq: Initialize cpufreq-based frequency-invariance later
cpufreq: Remove duplicate check in __cpufreq_offline()
cpufreq: Contain scaling_cur_freq.attr in cpufreq_attrs
cpufreq: intel_pstate: Add Granite Rapids support in no-HWP mode
cpufreq: intel_pstate: Always use HWP_DESIRED_PERF in passive mode
PM / devfreq: Add HiSilicon uncore frequency scaling driver
...
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Merge miscellaneous power management updates and cpupower utility
updates for 6.17-rc1:
- Update contact information in the PM ABI docs and maintainer
information in the power domains DT binding (Rafael Wysocki)
- Update PM header inclusions to follow the IWYU (Include What You Use)
principle (Andy Shevchenko)
- Add flags to specify power on attach/detach for PM domains, make the
driver core detach PM domains in device_unbind_cleanup(), and drop
the dev_pm_domain_detach() call from the platform bus type (Claudiu
Beznea)
- Improve Python binding's Makefile for cpupower (John B. Wyatt IV)
- Fix printing of CORE, CPU fields in cpupower-monitor (Gautham Shenoy)
* pm-misc:
PM: docs: Use my kernel.org address in ABI docs and DT bindings
driver core: platform: Drop dev_pm_domain_detach() call
PM: domains: Detach on device_unbind_cleanup()
PM: domains: Add flags to specify power on attach/detach
PM: Don't use "proxy" headers
* pm-tools:
cpupower: Improve Python binding's Makefile
pm: cpupower: Fix printing of CORE, CPU fields in cpupower-monitor
pm: cpupower: Fix the snapshot-order of tsc,mperf, clock in mperf_stop()
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The function prefixes for loongson2_mmc_pdata follow two naming
conventions: SoC-based and DMA-based.
First, DMA-based prefixes are the preferred choice, as they clearly
highlight differences, such as prepare_dma; however, for functions
related to SoC, such as reorder_cmd_data, it is agreed to use the
smallest SoC name as the fallback prefix, such as ls2k0500.
No functional change intended.
Suggested-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Link: https://lore.kernel.org/r/20250716064421.3823418-1-zhoubinbin@loongson.cn
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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There is a cut and paste bug so we accidentally return the wrong
variable. It should be "ret" instead of PTR_ERR(host->clk).
Fixes: 2115772014bd ("mmc: loongson2: Add Loongson-2K SD/SDIO controller driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Binbin Zhou <zhoubinbin@loongson.cn>
Link: https://lore.kernel.org/r/847bf395-6d62-49c9-a39d-8e82c5b17bf7@sabinyo.mountain
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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In loongson2_mmc_dll_mode_init(), `ret` variable is declared
as u32 but it is expected to hold an int value.
Fixes: d0f8e961deae ("mmc: loongson2: Add Loongson-2K2000 SD/SDIO/eMMC controller driver")
Reported-by: https://scan7.scan.coverity.com/#/project-view/53936/11354?selectedIssue=1644958
Signed-off-by: Sergio Perez Gonzalez <sperezglz@gmail.com>
Reviewed-by: Binbin Zhou <zhoubinbin@loongson.cn>
Link: https://lore.kernel.org/r/20250707185545.46275-1-sperezglz@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(),
pm_runtime_autosuspend() and pm_request_autosuspend() now include a call
to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to
pm_runtime_mark_last_busy().
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20250704075434.3220506-1-sakari.ailus@linux.intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Calling dev_pm_domain_attach()/dev_pm_domain_detach() in bus driver
probe/remove functions can affect system behavior when the drivers
attached to the bus use devres-managed resources. Since devres actions
may need to access device registers, calling dev_pm_domain_detach() too
early, i.e., before these actions complete, can cause failures on some
systems. One such example is Renesas RZ/G3S SoC-based platforms.
If the device clocks are managed via PM domains, invoking
dev_pm_domain_detach() in the bus driver's remove function removes the
device's clocks from the PM domain, preventing any subsequent
pm_runtime_resume*() calls from enabling those clocks.
The second argument of dev_pm_domain_attach() specifies whether the PM
domain should be powered on during attachment. Likewise, the second
argument of dev_pm_domain_detach() indicates whether the domain should be
powered off during detachment.
Upcoming changes address the issue described above (initially for the
platform bus only) by deferring the call to dev_pm_domain_detach() until
after devres_release_all() in device_unbind_cleanup(). The detach_power_off
field in struct dev_pm_info stores the detach power off info from the
second argument of dev_pm_domain_attach().
Because there are cases where the device's PM domain power-on/off behavior
must be conditional (e.g., in i2c_device_probe()), the patch introduces
PD_FLAG_ATTACH_POWER_ON and PD_FLAG_DETACH_POWER_OFF flags to be passed
to dev_pm_domain_attach().
Finally, dev_pm_domain_attach() and its users are updated to use the newly
introduced PD_FLAG_ATTACH_POWER_ON and PD_FLAG_DETACH_POWER_OFF macros.
This change is preparatory.
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com> # I2C
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://patch.msgid.link/20250703112708.1621607-2-claudiu.beznea.uj@bp.renesas.com
[ rjw: Changelog adjustments ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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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>
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Merge the mmc fixes for v6.16-rc[n] into the next branch, to allow them to
get tested together with the new mmc changes that are targeted for v6.17.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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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: 2f5da678351f ("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>
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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: 41fd4caeb00b ("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>
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Instead of using of_property_read_bool to check the presence of the
cdns,phy-* properties in the device tree, use of_property_present in
function sdhci_cdns_phy_param_count.
This silences the following warning messages since the cdns,phy-*
properties are all u32, not boolean.
OF: /soc/sdhci@d8010000: Read of boolean property 'cdns,phy-input-delay-legacy' with a value.
OF: /soc/sdhci@d8010000: Read of boolean property 'cdns,phy-input-delay-mmc-highspeed' with a value.
OF: /soc/sdhci@d8010000: Read of boolean property 'cdns,phy-input-delay-mmc-ddr' with a value.
OF: /soc/sdhci@d8010000: Read of boolean property 'cdns,phy-dll-delay-sdclk' with a value.
OF: /soc/sdhci@d8010000: Read of boolean property 'cdns,phy-dll-delay-sdclk-hsmmc' with a value.
Signed-off-by: Benoît Monin <benoit.monin@bootlin.com>
Link: https://lore.kernel.org/r/e244c1377f7b2ad5d026c9d9368a08de3887129f.1750943549.git.benoit.monin@bootlin.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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models
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: bedf9fc01ff1 ("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>
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This patch describes the two MMC controllers of the Loongson-2K2000 SoC,
one providing an eMMC interface and the other exporting an SD/SDIO
interface.
Compared to the Loongson-2K1000's MMC controllers, their internals are
similar, except that we use an internally exclusive DMA engine instead of
an externally shared APBDMA engine.
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Link: https://lore.kernel.org/r/1df46b976abd36003bd553ad8a039e5c97369df0.1750765495.git.zhoubinbin@loongson.cn
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The MMC controllers on the Loongson-2K series CPUs are similar,
except for the interface characteristics and the use of DMA controllers.
This patch describes the MMC controllers on the Loongson-2K0500/2K1000,
with the distinguishing feature being the use of an externally shared
APBDMA engine.
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Link: https://lore.kernel.org/r/c0a9f0c0279d8e09165c6e2d694b0c35f7fc7e31.1750765495.git.zhoubinbin@loongson.cn
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Replace direct ternary condition check with existing helper function
str_true_false() to improve code readability and maintain consistency.
Signed-off-by: Li Dong <lidong@vivo.com>
Link: https://lore.kernel.org/r/20250620043517.172705-1-lidong@vivo.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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