Convert platform_get_resource_byname() + devm_ioremap_resource() to a
single call to devm_platform_ioremap_resource_byname(), as this is
exactly what this function does.
Signed-off-by: Li Zetao <lizetao1@huawei.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20230802094028.976612-1-lizetao1@huawei.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Userspace can use this to distinguish hotpluggable mmc devices such as
sdcards from non-hotpluggable ones such as eMMC.
One example is the lsblk tool from util-linux.
Note that dev_set_removable() is not related to GENHD_FL_REMOVABLE which
is not applicable as per the comment in drivers/mmc/core/block.c
Link: https://github.com/util-linux/util-linux/issues/2379
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20230725-mmc-removable-v1-1-b2e0c4f18e6d@weissschuh.net
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20230718143054.1065288-1-robh@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
IRQs should be ready to serve when we call mmc_add_host() via
tmio_mmc_host_probe(). To achieve that, ensure that all irqs are masked
before registering the handlers.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20230712141327.20827-1-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The following error is printed on Logic PD's DA850 EVM:
davinci_mmc 1c40000.mmc: error -ENXIO: IRQ index 1 not found
Depending on the board, the SDIO interrupt may not be present, so use
the correct function to reflect that and prevent logging an error.
Signed-off-by: Julien Delbergue <j.delbergue.foss@gmail.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/8b57db8d-1d3a-883e-eb8f-ddf15f19d823@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Link: https://lore.kernel.org/r/20230704131939.22562-3-frank.li@vivo.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Link: https://lore.kernel.org/r/20230704131939.22562-2-frank.li@vivo.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Link: https://lore.kernel.org/r/20230704131939.22562-1-frank.li@vivo.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Using tabs to make a structure initialization more readable is not
considered helpful. Remove the final appearance from this driver.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230712140116.18718-1-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
IRQs should be ready to serve when we call mmc_add_host() via
tmio_mmc_host_probe(). To achieve that, ensure that all irqs are masked
before registering the handlers.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230712140011.18602-1-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
To conclude the ux500 busy timeout fixes, this improves the debug and
error prints so we can see a bit what is going on. Here is a typical
dmesg with these new debug messages enabled:
[ 2.648864] mmci-pl18x 80005000.mmc: mmc2: PL180 manf 80 rev4
at 0x80005000 irq 81,0 (pio)
[ 2.662750] mmci-pl18x 80005000.mmc: DMA channels RX dma0chan4, TX dma0chan5
[ 3.480407] mmci-pl18x 80005000.mmc: no busy signalling in time CMD06
[ 3.487457] mmci-pl18x 80005000.mmc: no busy signalling in time CMD06
[ 3.998321] mmci-pl18x 80005000.mmc: timeout in state waiting for end IRQ
waiting for busy CMD06
[ 3.998535] mmc2: new DDR MMC card at address 0001
[ 4.000030] mmcblk2: mmc2:0001 M4G1YC 3.69 GiB
[ 4.008361] mmcblk2: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13 p14 p15
p16 p17 p18 p19 p20 p21 p22 p23 p24 p25
[ 4.017700] mmcblk2boot0: mmc2:0001 M4G1YC 2.00 MiB
[ 4.020477] mmcblk2boot1: mmc2:0001 M4G1YC 2.00 MiB
[ 4.022125] mmcblk2rpmb: mmc2:0001 M4G1YC 128 KiB, chardev (246:0)
[ 5.791381] mmci-pl18x 80005000.mmc: no busy signalling in time CMD06
[ 10.938568] mmci-pl18x 80005000.mmc: timeout in state waiting for end IRQ
waiting for busy CMD06
[ 17.982849] mmci-pl18x 80005000.mmc: lost busy status when waiting for
busy start IRQ CMD06
[ 18.683563] mmci-pl18x 80005000.mmc: no busy signalling in time CMD06
[ 19.385437] mmci-pl18x 80005000.mmc: no busy signalling in time CMD06
[ 20.493652] mmci-pl18x 80005000.mmc: no busy signalling in time CMD06
We see a lot of lost IRQs and the timeout always occur while waiting for
the end IRQ, and then the busy status is *low* meaning the busy indication
is already de-asserted.
So busy signalling is missed in various ways for various reasons,
sometimes it appears that IRQs are simply lost.
One hypothesis is that this happens because the events happen so fast
that they are transient, and since the MMCI state machine in effect is
handling an edge trigger (rising or falling signal on DAT0) the
internal logic will miss the event, because the state machine in the
hardware is sampling the line, and will at times detect only the first
event but miss the second, fireing only one IRQ.
We print the second timeout error with dev_err() since it is pretty
serious, the other events are so common and simple to handle that we
can keep them at dev_dbg() level.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230628191243.3632401-1-linus.walleij@linaro.org
[Ulf: Fixup conflict in ux500_busy_timeout_work()]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The host pointer is already being dereferenced earlier, so let's just drop
the redundant WARN_ON.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20230622105327.77296-1-ulf.hansson@linaro.org
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: 2cc83bf7d4 (mmc: core: Allow mmc_start_host() synchronously detect a card)
Cc: Dennis Zhou <dennis@kernel.org>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reported-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20230630120015.363982-1-ulf.hansson@linaro.org
Core GPIO library:
- remove unused symbols
- don't spam the kernel log with messages about hogs
- remove old sysfs API cruft
- improve handling of GPIO masks
New drivers
- add a driver for the BlueField-3 GPIO controller
- add GPIO support for the TPS65219 PMIC
Driver improvements:
- extend the gpio-aggregator driver to support ramp-up/ramp-down delay
- remove unnecessary CONFIG_OF guards from gpio-aggregator
- readability improvements in gpio-tangier
- switch i2c drivers back to using probe() now that it's been converted in
the i2c subsystem to not taking the id parameter
- remove unused inclusions of of_gpio.h in several drivers
- make pm ops static in gpio-davinci and fix a comment
- use more devres in drivers to shrink and simplify the code
- add missing include in gpio-sa1100
- add HAS_IOPORT KConfig dependency where needed
- add permissions checks before accessing pins in gpio-tegra186
- convert the gpio-zynq driver to using immutable irqchips
- preserve output settings set by the bootloader in gpio-mpc8xxx
Selftests:
- tweak the variable naming in script tests
Device tree updates:
- convert gpio-mmio and gpio-stmpe to YAML
- add parsing of GPIO hogs to gpio-vf610
- add bindings for the Cirrus EP93xx GPIO controller
- add gpio-line-names property to the gpio-pca9570 bindings
- extend the binding for x-powers,axp209 with another block
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Merge tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We have two new drivers, some improvements to the core code, lots of
different updates to existing GPIO drivers and some dt-bindings on
top.
There's nothing controversial in here and almost everything has been
in next for more than a week (95% a lot longer than this). The only
thing that has spent less time in next is a new driver so no risk of
regressions.
The single merge pulls in changes that remove all usage of global GPIO
numbers from arch/arm/mach-omap.
Core GPIO library:
- remove unused symbols
- don't spam the kernel log with messages about hogs
- remove old sysfs API cruft
- improve handling of GPIO masks
New drivers:
- add a driver for the BlueField-3 GPIO controller
- add GPIO support for the TPS65219 PMIC
Driver improvements:
- extend the gpio-aggregator driver to support ramp-up/ramp-down
delay
- remove unnecessary CONFIG_OF guards from gpio-aggregator
- readability improvements in gpio-tangier
- switch i2c drivers back to using probe() now that it's been
converted in the i2c subsystem to not taking the id parameter
- remove unused inclusions of of_gpio.h in several drivers
- make pm ops static in gpio-davinci and fix a comment
- use more devres in drivers to shrink and simplify the code
- add missing include in gpio-sa1100
- add HAS_IOPORT KConfig dependency where needed
- add permissions checks before accessing pins in gpio-tegra186
- convert the gpio-zynq driver to using immutable irqchips
- preserve output settings set by the bootloader in gpio-mpc8xxx
Selftests:
- tweak the variable naming in script tests
Device tree updates:
- convert gpio-mmio and gpio-stmpe to YAML
- add parsing of GPIO hogs to gpio-vf610
- add bindings for the Cirrus EP93xx GPIO controller
- add gpio-line-names property to the gpio-pca9570 bindings
- extend the binding for x-powers,axp209 with another block"
* tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (58 commits)
of: unittest: drop assertions for GPIO hog messages
gpiolib: Drop unused domain_ops memeber of GPIO IRQ chip
gpio: synq: remove unused zynq_gpio_irq_reqres/zynq_gpio_irq_relres
dt-bindings: gpio: gpio-vf610: Add parsing of hogs
gpio: lpc18xx: Remove unused of_gpio.h inclusion
gpio: xra1403: Remove unused of_gpio.h inclusion
gpio: mpc8xxx: Remove unused of_gpio.h inclusion
dt-bindings: gpio: Add Cirrus EP93xx
gpio: mpc8xxx: latch GPIOs state on module load when configured as output
selftests: gpio: gpio-sim: Use same variable name for sysfs pathname
gpio: mlxbf3: Add gpio driver support
gpio: delay: Remove duplicative functionality
gpio: aggregator: Set up a parser of delay line parameters
gpio: aggregator: Support delay for setting up individual GPIOs
gpio: aggregator: Remove CONFIG_OF and of_match_ptr() protections
dt-bindings: gpio: pca9570: add gpio-line-names property
gpiolib: remove unused gpio_cansleep()
gpio: tps65219: add GPIO support for TPS65219 PMIC
gpio: zynq: fix zynqmp_gpio not an immutable chip warning
gpio: davinci: make davinci_gpio_dev_pm_ops static
...
- Allow synchronous detection of (e)MMC/SD/SDIO cards
- Fixup error check for ioctls for SPI hosts
- Disable broken SD-Cache support for Kingston Canvas Go Plus from 11/2019
- Disable broken eMMC-Trim support for Kingston EMMC04G-M627
- Disable broken eMMC-Trim support for Micron MTFC4GACAJCN-1M
MMC host:
- bcm2835: Convert DT bindings to YAML
- mmci: Enable asynchronous probe
- mmci: Transform the ux500 HW-busy detection into a proper state machine
- mmci: Add support for SW busy-end timeouts for the ux500 variants
- mmci_stm32: Add support for sdm32 variant revision v3.0 used on STM32MP25
- mmci_stm32: Improve the tuning sequence
- mtk-sd: Tune polling-period to improve performance
- sdhci: Fixup DMA configuration for 64-bit DMA mode
- sdhci-bcm-kona: Convert DT bindings to YAML
- sdhci-msm: Switch to use the new ICE API
- sdhci-msm: Add support for the SC8280XP/IPQ6018/QDU1000/QRU1000 variants
- sdhci-pci-gli: Add support SD Express cards for GL9767
- sdhci-pci-gli: Add support for the Genesys Logic GL9767 variant
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Merge tag 'mmc-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Allow synchronous detection of (e)MMC/SD/SDIO cards
- Fixup error check for ioctls for SPI hosts
- Disable broken SD-Cache support for Kingston Canvas Go Plus from 2019
- Disable broken eMMC-Trim support for Kingston EMMC04G-M627
- Disable broken eMMC-Trim support for Micron MTFC4GACAJCN-1M
MMC host:
- bcm2835: Convert DT bindings to YAML
- mmci:
- Enable asynchronous probe
- Transform the ux500 HW-busy detection into a proper state machine
- Add support for SW busy-end timeouts for the ux500 variants
- mmci_stm32:
- Add support for sdm32 variant revision v3.0 used on STM32MP25
- Improve the tuning sequence
- mtk-sd: Tune polling-period to improve performance
- sdhci: Fixup DMA configuration for 64-bit DMA mode
- sdhci-bcm-kona: Convert DT bindings to YAML
- sdhci-msm:
- Switch to use the new ICE API
- Add support for the SC8280XP/IPQ6018/QDU1000/QRU1000 variants
- sdhci-pci-gli:
- Add support SD Express cards for GL9767
- Add support for the Genesys Logic GL9767 variant"
* tag 'mmc-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (42 commits)
dt-bindings: mmc: fsl-imx-esdhc: Add imx6ul support
mmc: mmci: Add support for SW busy-end timeouts
mmc: Add MMC_QUIRK_BROKEN_SD_CACHE for Kingston Canvas Go Plus from 11/2019
mmc: core: disable TRIM on Kingston EMMC04G-M627
mmc: mmci: stm32: add delay block support for STM32MP25
mmc: mmci: stm32: prepare other delay block support
mmc: mmci: stm32: manage block gap hardware flow control
mmc: mmci: Add support for sdmmc variant revision v3.0
mmc: mmci: add stm32_idmabsize_align parameter
dt-bindings: mmc: mmci: Add st,stm32mp25-sdmmc2 compatible
mmc: core: disable TRIM on Micron MTFC4GACAJCN-1M
mmc: mmci: Break out a helper function
mmc: mmci: Use a switch statement machine
mmc: mmci: Use state machine state as exit condition
mmc: mmci: Retry the busy start condition
mmc: mmci: Make busy complete state machine explicit
mmc: mmci: Break out error check in busy detect
mmc: mmci: Stash status while waiting for busy
mmc: mmci: Unwind big if() clause
mmc: mmci: Clear busy_status when starting command
...
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Merge tag 'for-6.5/block-2023-06-23' of git://git.kernel.dk/linux
Pull block updates from Jens Axboe:
- NVMe pull request via Keith:
- Various cleanups all around (Irvin, Chaitanya, Christophe)
- Better struct packing (Christophe JAILLET)
- Reduce controller error logs for optional commands (Keith)
- Support for >=64KiB block sizes (Daniel Gomez)
- Fabrics fixes and code organization (Max, Chaitanya, Daniel
Wagner)
- bcache updates via Coly:
- Fix a race at init time (Mingzhe Zou)
- Misc fixes and cleanups (Andrea, Thomas, Zheng, Ye)
- use page pinning in the block layer for dio (David)
- convert old block dio code to page pinning (David, Christoph)
- cleanups for pktcdvd (Andy)
- cleanups for rnbd (Guoqing)
- use the unchecked __bio_add_page() for the initial single page
additions (Johannes)
- fix overflows in the Amiga partition handling code (Michael)
- improve mq-deadline zoned device support (Bart)
- keep passthrough requests out of the IO schedulers (Christoph, Ming)
- improve support for flush requests, making them less special to deal
with (Christoph)
- add bdev holder ops and shutdown methods (Christoph)
- fix the name_to_dev_t() situation and use cases (Christoph)
- decouple the block open flags from fmode_t (Christoph)
- ublk updates and cleanups, including adding user copy support (Ming)
- BFQ sanity checking (Bart)
- convert brd from radix to xarray (Pankaj)
- constify various structures (Thomas, Ivan)
- more fine grained persistent reservation ioctl capability checks
(Jingbo)
- misc fixes and cleanups (Arnd, Azeem, Demi, Ed, Hengqi, Hou, Jan,
Jordy, Li, Min, Yu, Zhong, Waiman)
* tag 'for-6.5/block-2023-06-23' of git://git.kernel.dk/linux: (266 commits)
scsi/sg: don't grab scsi host module reference
ext4: Fix warning in blkdev_put()
block: don't return -EINVAL for not found names in devt_from_devname
cdrom: Fix spectre-v1 gadget
block: Improve kernel-doc headers
blk-mq: don't insert passthrough request into sw queue
bsg: make bsg_class a static const structure
ublk: make ublk_chr_class a static const structure
aoe: make aoe_class a static const structure
block/rnbd: make all 'class' structures const
block: fix the exclusive open mask in disk_scan_partitions
block: add overflow checks for Amiga partition support
block: change all __u32 annotations to __be32 in affs_hardblocks.h
block: fix signed int overflow in Amiga partition support
block: add capacity validation in bdev_add_partition()
block: fine-granular CAP_SYS_ADMIN for Persistent Reservation
block: disallow Persistent Reservation on partitions
reiserfs: fix blkdev_put() warning from release_journal_dev()
block: fix wrong mode for blkdev_get_by_dev() from disk_scan_partitions()
block: document the holder argument to blkdev_get_by_path
...
The ux500 variant doesn't have a HW based timeout to use for busy-end IRQs.
To avoid hanging and waiting for the card to stop signaling busy, let's
schedule a delayed work, according to the corresponding cmd->busy_timeout
for the command. If the work gets to run, let's kick the IRQ handler to
complete the currently running request/command.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20230620091113.33393-1-ulf.hansson@linaro.org
This microSD card never clears Flush Cache bit after cache flush has
been started in sd_flush_cache(). This leads e.g. to failure to mount
file system. Add a quirk which disables the SD cache for this specific
card from specific manufacturing date of 11/2019, since on newer dated
cards from 05/2023 the cache flush works correctly.
Fixes: 08ebf903af ("mmc: core: Fixup support for writeback-cache for eMMC and SD")
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20230620102713.7701-1-marex@denx.de
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
It seems that Kingston EMMC04G-M627 despite advertising TRIM support does
not work when the core is trying to use REQ_OP_WRITE_ZEROES.
We are seeing I/O errors in OpenWrt under 6.1 on Zyxel NBG7815 that we did
not previously have and tracked it down to REQ_OP_WRITE_ZEROES.
Trying to use fstrim seems to also throw errors like:
[93010.835112] I/O error, dev loop0, sector 16902 op 0x3:(DISCARD) flags 0x800 phys_seg 1 prio class 2
Disabling TRIM makes the error go away, so lets add a quirk for this eMMC
to disable TRIM.
Signed-off-by: Robert Marko <robimarko@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230619193621.437358-1-robimarko@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
On STM32MP25, the delay block is inside the SoC, and configured through
the SYSCFG registers. The algorithm is also different from what was in
STM32MP1 chip.
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Link: https://lore.kernel.org/r/20230619115120.64474-7-yann.gautier@foss.st.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
In stm32 sdmmc variant revision v3.0, a block gap hardware flow control
should be used with bus speed modes SDR104 and HS200.
It is enabled by writing a non-null value to the new added register
MMCI_STM32_FIFOTHRR.
The threshold will be 2^(N-1) bytes, so we can use the ffs() function to
compute the value N to be written to the register. The threshold used
should be the data block size, but must not be bigger than the FIFO size.
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Link: https://lore.kernel.org/r/20230619115120.64474-5-yann.gautier@foss.st.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The alignment for the IDMA size depends on the peripheral version, it
should then be configurable. Add stm32_idmabsize_align in the variant
structure.
And remove now unused (and wrong) MMCI_STM32_IDMABNDT_* macros.
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Link: https://lore.kernel.org/r/20230619115120.64474-3-yann.gautier@foss.st.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
It seems that Micron MTFC4GACAJCN-1M despite advertising TRIM support does
not work when the core is trying to use REQ_OP_WRITE_ZEROES.
We are seeing the following errors in OpenWrt under 6.1 on Qnap Qhora 301W
that we did not previously have and tracked it down to REQ_OP_WRITE_ZEROES:
[ 18.085950] I/O error, dev loop0, sector 596 op 0x9:(WRITE_ZEROES) flags 0x800 phys_seg 0 prio class 2
Disabling TRIM makes the error go away, so lets add a quirk for this eMMC
to disable TRIM.
Signed-off-by: Robert Marko <robimarko@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230530213259.1776512-1-robimarko@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Merge the mmc fixes for v6.4-rc[n] into the next branch, to allow them to
get tested together with the new mmc changes that are targeted for v6.5.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The driver overrides the error codes returned by platform_get_irq_byname()
to -ENODEV, so if it returns -EPROBE_DEFER, the driver will fail the probe
permanently instead of the deferred probing. Switch to propagating error
codes upstream.
Fixes: 9ec36cafe4 ("of/irq: do irq resolution in platform_get_irq")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/20230617203622.6812-13-s.shtylyov@omp.ru
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The driver overrides the error codes and IRQ0 returned by platform_get_irq()
to -EINVAL, so if it returns -EPROBE_DEFER, the driver will fail the probe
permanently instead of the deferred probing. Switch to propagating the error
codes upstream. Since commit ce753ad154 ("platform: finally disallow IRQ0
in platform_get_irq() and its ilk") IRQ0 is no longer returned by those APIs,
so we now can safely ignore it...
Fixes: 2408a08583 ("mmc: sunxi-mmc: Handle return value of platform_get_irq")
Cc: stable@vger.kernel.org # v5.19+
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20230617203622.6812-12-s.shtylyov@omp.ru
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The driver overrides the error codes returned by platform_get_irq() to
-ENXIO, so if it returns -EPROBE_DEFER, the driver will fail the probe
permanently instead of the deferred probing. Switch to propagating the
error codes upstream.
Fixes: 9ec36cafe4 ("of/irq: do irq resolution in platform_get_irq")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/20230617203622.6812-11-s.shtylyov@omp.ru
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The driver overrides the error codes and IRQ0 returned by platform_get_irq()
to -EINVAL, so if it returns -EPROBE_DEFER, the driver will fail the probe
permanently instead of the deferred probing. Switch to propagating the error
codes upstream. Since commit ce753ad154 ("platform: finally disallow IRQ0
in platform_get_irq() and its ilk") IRQ0 is no longer returned by those APIs,
so we now can safely ignore it...
Fixes: 682798a596 ("mmc: sdhci-spear: Handle return value of platform_get_irq")
Cc: stable@vger.kernel.org # v5.19+
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20230617203622.6812-10-s.shtylyov@omp.ru
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The driver overrides the error codes returned by platform_get_irq() to
-EINVAL, so if it returns -EPROBE_DEFER, the driver will fail the probe
permanently instead of the deferred probing. Switch to propagating the
error codes upstream.
Fixes: 1b7ba57ecc ("mmc: sdhci-acpi: Handle return value of platform_get_irq")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20230617203622.6812-9-s.shtylyov@omp.ru
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The driver overrides the error codes returned by platform_get_irq() to
-EINVAL, so if it returns -EPROBE_DEFER, the driver will fail the probe
permanently instead of the deferred probing. Switch to propagating the
error codes upstream.
Fixes: ff65ffe46d ("mmc: Add Actions Semi Owl SoCs SD/MMC driver")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/20230617203622.6812-8-s.shtylyov@omp.ru
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The driver overrides the error codes returned by platform_get_irq() to
-ENXIO, so if it returns -EPROBE_DEFER, the driver will fail the probe
permanently instead of the deferred probing. Switch to propagating the
error codes upstream.
Fixes: 9ec36cafe4 ("of/irq: do irq resolution in platform_get_irq")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/20230617203622.6812-7-s.shtylyov@omp.ru
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The driver overrides the error codes returned by platform_get_irq() to
-ENXIO, so if it returns -EPROBE_DEFER, the driver will fail the probe
permanently instead of the deferred probing. Switch to propagating the
error codes upstream.
Fixes: 9ec36cafe4 ("of/irq: do irq resolution in platform_get_irq")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/20230617203622.6812-6-s.shtylyov@omp.ru
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The driver overrides the error codes returned by platform_get_irq() to
-ENXIO, so if it returns -EPROBE_DEFER, the driver will fail the probe
permanently instead of the deferred probing. Switch to propagating the
error codes upstream.
Fixes: 9ec36cafe4 ("of/irq: do irq resolution in platform_get_irq")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/20230617203622.6812-5-s.shtylyov@omp.ru
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The driver overrides the error codes returned by platform_get_irq() to
-EINVAL, so if it returns -EPROBE_DEFER, the driver will fail the probe
permanently instead of the deferred probing. Switch to propagating the
error codes upstream.
Fixes: 208489032b ("mmc: mediatek: Add Mediatek MMC driver")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/20230617203622.6812-4-s.shtylyov@omp.ru
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The driver overrides the error codes and IRQ0 returned by platform_get_irq()
to -EINVAL, so if it returns -EPROBE_DEFER, the driver will fail the probe
permanently instead of the deferred probing. Switch to propagating the error
codes upstream. Since commit ce753ad154 ("platform: finally disallow IRQ0
in platform_get_irq() and its ilk") IRQ0 is no longer returned by those APIs,
so we now can safely ignore it...
Fixes: cbcaac6d7d ("mmc: meson-gx-mmc: Fix platform_get_irq's error checking")
Cc: stable@vger.kernel.org # v5.19+
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230617203622.6812-3-s.shtylyov@omp.ru
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The driver overrides the error codes and IRQ0 returned by platform_get_irq()
to -EINVAL, so if it returns -EPROBE_DEFER, the driver will fail the probe
permanently instead of the deferred probing. Switch to propagating the error
codes upstream. Since commit ce753ad154 ("platform: finally disallow IRQ0
in platform_get_irq() and its ilk") IRQ0 is no longer returned by those APIs,
so we now can safely ignore it...
Fixes: 660fc733bd ("mmc: bcm2835: Add new driver for the sdhost controller.")
Cc: stable@vger.kernel.org # v5.19+
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/20230617203622.6812-2-s.shtylyov@omp.ru
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
mmc host drivers should have enabled the asynchronous probe option, but
it seems like we didn't set it for litex_mmc when introducing litex mmc
support, so let's set it now.
Tested with linux-on-litex-vexriscv on sipeed tang nano 20K fpga.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Acked-by: Gabriel Somlo <gsomlo@gmail.com>
Fixes: 92e0991047 ("mmc: Add driver for LiteX's LiteSDCard interface")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230617085319.2139-1-jszhang@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
These four lines clearing, masking and resetting the state
of the busy detect state machine is repeated five times in
the code so break this out to a small helper so things are
easier to read.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230405-pl180-busydetect-fix-v7-9-69a7164f2a61@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This makes the ux500 ->busy_complete() callback re-read
the status register 10 times while waiting for the busy
signal to assert in the status register.
If this does not happen, we bail out regarding the
command completed already, i.e. before we managed to
start to check the busy status.
There is a comment in the code about this, let's just
implement it to be certain that we can catch this glitch
if it happens.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230405-pl180-busydetect-fix-v7-6-69a7164f2a61@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This refactors the ->busy_complete() callback currently
only used by Ux500 and STM32 to handle busy detection on
hardware where one and the same IRQ is fired whether we get
a start or an end signal on busy detect.
The code is currently using the cached status from the
command IRQ in ->busy_status as a state to select what to
do next: if this state is non-zero we are waiting for
IRQs and if it is zero we treat the state as the starting
point for a busy detect wait cycle.
Make this explicit by creating a state machine where the
->busy_complete callback moves between three states.
The Ux500 busy detect code currently assumes this order:
we enable the busy detect IRQ, get a busy start IRQ, then a
busy end IRQ, and then we clear and mask this IRQ and
proceed.
We insert debug prints for unexpected states.
This works as before on most cards, however on a
problematic card that is not working with busy detect, and
which I have been debugging, the following happens a lot:
[ 3.380554] mmci-pl18x 80005000.mmc: no busy signalling in time
[ 3.387420] mmci-pl18x 80005000.mmc: no busy signalling in time
[ 3.394561] mmci-pl18x 80005000.mmc: lost busy status
when waiting for busy start IRQ
This probably means that the busy detect start IRQ has
already occurred when we start executing the
->busy_complete() callbacks, and the busy detect end IRQ
is counted as the start IRQ, and this is what is causing
the card to not be detected properly.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230405-pl180-busydetect-fix-v7-5-69a7164f2a61@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The busy detect callback for Ux500 checks for an error
in the status in the first if() clause. The only practical
reason is that if an error occurs, the if()-clause is not
executed, and the code falls through to the last
if()-clause if (host->busy_status) which will clear and
disable the irq. Make this explicit instead: it is easier
to read.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230405-pl180-busydetect-fix-v7-4-69a7164f2a61@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Some interesting flags can arrive while we are waiting for
the first busy detect IRQ so OR then onto the stashed
flags so they are not missed.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230405-pl180-busydetect-fix-v7-3-69a7164f2a61@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This does two things: firsr replace the hard-to-read long
if-expression:
if (!host->busy_status && !(status & err_msk) &&
(readl(base + MMCISTATUS) & host->variant->busy_detect_flag)) {
With the more readable:
if (!host->busy_status && !(status & err_msk)) {
status = readl(base + MMCISTATUS);
if (status & host->variant->busy_detect_flag) {
Second notice that the re-read MMCISTATUS register is now
stored into the status variable, using logic OR because what
if something else changed too?
While we are at it, explain what the function is doing.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230405-pl180-busydetect-fix-v7-2-69a7164f2a61@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
If we are starting a command which can generate a busy
response, then clear the variable host->busy_status
if the variant is using a ->busy_complete callback.
We are lucky that the member is zero by default and
hopefully always gets cleared in the ->busy_complete
callback even on errors, but it's just fragile so
make sure it is always initialized to zero.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230405-pl180-busydetect-fix-v7-1-69a7164f2a61@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Merge the mmc fixes for v6.4-rc[n] into the next branch, to allow them to
get tested together with the new mmc changes that are targeted for v6.5.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The feedback clock is used only for SDR104 & HS200 modes, and when
delay block is used (frequency is higher than 50 MHz). The tuning
procedure is then only required for those modes. Skip the procedure
for other modes.
The setting of this feedback clock is done just after enabling delay
block, and before configuring it.
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Link: https://lore.kernel.org/r/20230613150148.429828-1-yann.gautier@foss.st.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
