Disambiguate the usage of dev as a variable name; it is usually best to
keep it reserved for struct device pointers. Avoid having multiple
names for the same struct pointer (previously: dev, nmk, nmk_i2c).
Fix whitespace code style; return indented twice, spacing besides infix
operators, align function call arguments to opening parenthesis. Remove
useless cast to unused return value from init_hw(). Introduce local dev
variable in probe() to alias &adev->dev.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Add EyeQ5 bindings to the existing Nomadik I2C dt-bindings. Add the
EyeQ5-specific property behind a conditional. Add an example for this
compatible.
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Chunyan Zhang <zhang.lyra@gmail.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Currently, all Kconfig symbols for R-Car Gen4 SoCs select
ARCH_RCAR_GEN3, which might confuse the casual reader. Prepare for the
advent of ARCH_RCAR_GEN4 by extending the dependency for auto-selecting
reset controller support.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
This adds i2c bus recovery to the lpi2c driver.
Uses the generic recovery function setting the SCL/SDA pads as
GPIO pins and sending 9 clocks to try and recover the bus.
Signed-off-by: Carlos Song <carlos.song@nxp.com>
Reviewed-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Enable device system suspend and resume PM support, and mark the device
state as suspended during system suspend to reject any data transfer.
Signed-off-by: Ji Sheng Teoh <jisheng.teoh@starfivetech.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
DRV_NAME was useful back in the days. But here, being used once, it is
only cruft.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
"i2c-scl-clk-low-timeout-us" is wrongly used here because it describes
maximum clock stretching not maximum transfer time. Additionally, it is
deprecated because of issues. Move this driver to the correct binding.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
"i2c-scl-clk-low-timeout-us" has flaws in itself and the usage here is
all wrong. The driver doesn't use it as a maximum time for clock
stretching but the maximum time for a total transfer. We already have
a binding for the latter. Convert the wrong binding from examples.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
I got an idea the i2c-designware should not need duplicated state
machines for the interrupt and polling modes. The IP is practically the
same and state transitions happens in response to the events that can be
observed from the DW_IC_RAW_INTR_STAT register. Either by interrupts or
by polling.
Another reasons are the interrupt mode is the most tested, has handling
for special cases as well as transmit abort handling and those are
missing from two polling mode quirks.
Patch implements a generic polling mode by using existing code for
interrupt mode. This is done by moving event handling from the
i2c_dw_isr() into a new i2c_dw_process_transfer() that will be called
both from the i2c_dw_isr() and a polling loop.
Polling loop is implemented in a new i2c_dw_wait_transfer() that is
shared between both modes. In interrupt mode it waits for the completion
object as before. In polling mode both completion object and
DW_IC_RAW_INTR_STAT are polled to determine completed transfer and state
transitions.
Loop tries to save power by sleeping "stetson guessed" range between
3 and 25 µS which falls between 10 cycles of High-speed mode 3.4 Mb/s
and Fast mode 400 kHz. With it the CPU usage was reduced under heavy
Fast mode I2C transfer without much increase in total transfer time but
otherwise no more effort has been put to optimize this.
I decided to convert the txgbe_i2c_dw_xfer_quirk() straight to generic
polling mode code in this patch. It doesn't have HW dependent quirks
like the amd_i2c_dw_xfer_quirk() does have and without users this patch
is needless.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
I believe RX FIFO depth define 0 is incorrect on Wangxun 10Gb NIC. It
must be at least 1 since code is able to read received data from the
DW_IC_DATA_CMD register.
For now this define is irrelevant since the txgbe_i2c_dw_xfer_quirk()
doesn't use the rx_fifo_depth member variable of struct dw_i2c_dev but
is needed when converting code into generic polling mode implementation.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Code is more logically arranged when i2c_dw_read_clear_intrbits() and
i2c_dw_isr() are located before i2c_dw_xfer().
Real reason for this is to prepare for more shared code between
interrupt and polling mode code.
While at it, remove one extra space and refer to the
i2c_dw_init_master() in two comment sections.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Convert access to DW_IC_INTR_MASK register using the existing
__i2c_dw_write_intr_mask() and a __i2c_dw_read_intr_mask() introduced
here. Motivation to this is to prepare for generic polling mode code
where polling mode will use a SW mask instead of DW_IC_INTR_MASK.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
I was testing the polling mode txgbe_i2c_dw_xfer_quirk() on a HW where
the i2c-designware has interrupt connected and shared with other device.
I noticed there is a bogus interrupt for each transfer.
Reason for this that both polling mode functions call the
i2c_dw_xfer_init() which enable interrupts then followed by immediate
disable by the same polling mode functions. This is enough to trigger
TX_EMPTY interrupt.
Fix this by introducing a __i2c_dw_write_intr_mask() helper that unmasks
interrupts conditionally and use it in i2c_dw_xfer_init().
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Currently initialization flow in i2c_dw_probe_master() skips a few steps
and has code duplication for polling mode implementation.
Simplify this by adding a new ACCESS_POLLING flag that is set for those
two platforms that currently use polling mode and use it to skip
interrupt handler setup.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
In the npcm_i2c_reg_slave() function, there was a redundant
comparison that checked if 'bus->slave' was null immediately after
assigning it the 'client' value. There were concerns about a
potential null dereference because of `client->adapter`, but
according to Wolfram Sang, "we trusted ourselves here" Therefore,
this comparison is unnecessary.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Rand Deeb <rand.sec96@gmail.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Avoid code duplication and factor out retrieving and checking the
block length value to new helper i801_get_block_len().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Add a sentinel length value that is used to check whether we should
read and use the length value provided by the slave device.
This simplifies the currently used checks.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
i2c and smbus block transaction handling have little in common,
therefore split this function to improve code readability.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Avoid code duplication and factor out checking and clearing PEC error
bit to new helper i801_check_and_clear_pec_error().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
This change simplifies the code a little and makes clearer that the
ICH5 feature set is an extension of the ICH4 feature set.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Document support for the I2C Bus Interfaces in the Renesas R-Car V4M
(R8A779H0) SoC.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
The driver receives the tx fifo almost empty(aempty) interrupt and
reads the tx_aempty_int_mstat to start a round of data transfer.
The operation of clearing the TX aempty interrupt after completing
a write cycle is added to ensure that the FIFO is truly at almost
empty status when an aempty interrupt is received.
The threshold for fifo almost empty interrupt is defined as 1.
Signed-off-by: Devyn Liu <liudingyuan@huawei.com>
Reviewed-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
The driver finishes a write cycle by read the fifo tx full status
or write limit decrease to 0. The driver starts to write data to
the FIFO after the I2C FIFO almost empty interrupt is reported.
The threshold for FIFO almost empty interrupt is that the amount
of data in the FIFO is less than or equal to 1.
Reduce write maxwrite to the fifo depth - aempty interrupt
threshold. Limiting the number of data to be written at a time
to remaining fifo capacity.
Signed-off-by: Devyn Liu <liudingyuan@huawei.com>
Reviewed-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Switch the R-Mobile A1, R-Mobile APE6, and SH-Mobile AG5 SoCs to the new
frequency calculation formula, to (a) avoid running the I2C bus too fast,
and (b) bring the low/high ratio closer to the recommended ratio 5/4.
As this makes fast_clock_dt_config and v2_freq_calc_dt_config identical,
merge them into a single fast_clock_dt_config.
Legacy SH users (sh7343, sh7366, and sh772[234]) are left alone, and
still use the old formula.
Measurement results on R-Mobile APE6 and SH-Mobile AG5 (fck=104 MHz,
clks_per_count=2):
100 kHz: 106 kHz LH=1.12 before, 99.6 kHz L/H=1.22 after
400 kHz: 384 kHz LH=1.67 before, 392 kHz L/H=1.27 after
Measurement results on R-Mobile A1 (fck=49.5 MHz, clks_per_count=1):
100 kHz: 106 kHz L/H=1.09 before, 99.6 kHz L/H=1.20 after
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Starting with
commit 75820314de ("i2c: core: add generic I2C GPIO recovery")
GPIO bus recovery is supported by the I2C core, so we can remove the
driver implementation and use that one instead.
As a nice side-effect, pinctrl becomes optional, allowing bus recovery on
LS1021A, which does not have such luxury, but can be wired up to use extra
fixed GPIO pins.
Note: The previous error messages about bus recovery not being supported is
dropped with this change. Given that it is perfectly possible to have platforms
where bus recovery works without pinctrl support, I happen to work on one such,
both error messages does not really make sense in those cases. And I don't see
how to know if this is the case or not.
Signed-off-by: Esben Haabendal <esben@geanix.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Enable additional features based on DT settings and unconditionally
release the shared interrupt pin after 1.6 seconds and allow to use
it as reset.
These features aren't enabled by default and it's up to board designer
to validate for proper functioning and detection of devices in secondary
bus as sometimes it can cause secondary bus being disabled.
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Maxim Max7357 has a configuration register to enable additional
features. These features aren't enabled by default & its up to
board designer to enable the same as it may have unexpected side effects.
These should be validated for proper functioning & detection of devices
in secondary bus as sometimes it can cause secondary bus being disabled.
Add booleans for:
- maxim,isolate-stuck-channel
- maxim,send-flush-out-sequence
- maxim,preconnection-wiggle-test-enable
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
and extent handling code.
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Merge tag 'for-linus-6.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Miscellaneous bug fixes and cleanups in ext4's multi-block allocator
and extent handling code"
* tag 'for-linus-6.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (23 commits)
ext4: make ext4_set_iomap() recognize IOMAP_DELALLOC map type
ext4: make ext4_map_blocks() distinguish delalloc only extent
ext4: add a hole extent entry in cache after punch
ext4: correct the hole length returned by ext4_map_blocks()
ext4: convert to exclusive lock while inserting delalloc extents
ext4: refactor ext4_da_map_blocks()
ext4: remove 'needed' in trace_ext4_discard_preallocations
ext4: remove unnecessary parameter "needed" in ext4_discard_preallocations
ext4: remove unused return value of ext4_mb_release_group_pa
ext4: remove unused return value of ext4_mb_release_inode_pa
ext4: remove unused return value of ext4_mb_release
ext4: remove unused ext4_allocation_context::ac_groups_considered
ext4: remove unneeded return value of ext4_mb_release_context
ext4: remove unused parameter ngroup in ext4_mb_choose_next_group_*()
ext4: remove unused return value of __mb_check_buddy
ext4: mark the group block bitmap as corrupted before reporting an error
ext4: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal()
ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found()
ext4: avoid dividing by 0 in mb_update_avg_fragment_size() when block bitmap corrupt
ext4: avoid bb_free and bb_fragments inconsistency in mb_free_blocks()
...
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Merge tag 'v6.8-rc3-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
"Five smb3 client fixes, mostly multichannel related:
- four multichannel fixes including fix for channel allocation when
multiple inactive channels, fix for unneeded race in channel
deallocation, correct redundant channel scaling, and redundant
multichannel disabling scenarios
- add warning if max compound requests reached"
* tag 'v6.8-rc3-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb: client: increase number of PDUs allowed in a compound request
cifs: failure to add channel on iface should bump up weight
cifs: do not search for channel if server is terminating
cifs: avoid redundant calls to disable multichannel
cifs: make sure that channel scaling is done only once
* Clear XFS_ATTR_INCOMPLETE filter on removing xattr from a node format
attribute fork.
* Remove conditional compilation of realtime geometry validator functions to
prevent confusing error messages from being printed on the console during the
mount operation.
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
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Merge tag 'xfs-6.8-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Chandan Babu:
- Clear XFS_ATTR_INCOMPLETE filter on removing xattr from a node format
attribute fork
- Remove conditional compilation of realtime geometry validator
functions to prevent confusing error messages from being printed on
the console during the mount operation
* tag 'xfs-6.8-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: remove conditional building of rt geometry validator functions
xfs: reset XFS_ATTR_INCOMPLETE filter on node removal
Here are three tiny driver fixes for 6.8-rc3. They include:
- Android binder long-term bug with epoll finally being fixed
- fastrpc driver shutdown bugfix
- open-dice lockdep fix
All of these have been in linux-next this week with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are three tiny driver fixes for 6.8-rc3. They include:
- Android binder long-term bug with epoll finally being fixed
- fastrpc driver shutdown bugfix
- open-dice lockdep fix
All of these have been in linux-next this week with no reported
issues"
* tag 'char-misc-6.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
binder: signal epoll threads of self-work
misc: open-dice: Fix spurious lockdep warning
misc: fastrpc: Mark all sessions as invalid in cb_remove
Here are some small tty and serial driver fixes for 6.8-rc3 that resolve
a number of reported issues. Included in here are:
- rs485 flag definition fix that affected the user/kernel abi in -rc1
- max310x driver fixes
- 8250_pci1xxxx driver off-by-one fix
- uart_tiocmget locking race fix
All of these have been in linux-next for over a week with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty and serial driver fixes from Greg KH:
"Here are some small tty and serial driver fixes for 6.8-rc3 that
resolve a number of reported issues. Included in here are:
- rs485 flag definition fix that affected the user/kernel abi in -rc1
- max310x driver fixes
- 8250_pci1xxxx driver off-by-one fix
- uart_tiocmget locking race fix
All of these have been in linux-next for over a week with no reported
issues"
* tag 'tty-6.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: max310x: prevent infinite while() loop in port startup
serial: max310x: fail probe if clock crystal is unstable
serial: max310x: improve crystal stable clock detection
serial: max310x: set default value when reading clock ready bit
serial: core: Fix atomicity violation in uart_tiocmget
serial: 8250_pci1xxxx: fix off by one in pci1xxxx_process_read_data()
tty: serial: Fix bit order in RS485 flag definitions
Here are a bunch of small USB driver fixes for 6.8-rc3. Included in
here are:
- new usb-serial driver ids
- new dwc3 driver id added
- typec driver change revert
- ncm gadget driver endian bugfix
- xhci bugfixes for a number of reported issues
- usb hub bugfix for alternate settings
- ulpi driver debugfs memory leak fix
- chipidea driver bugfix
- usb gadget driver fixes
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB driver fixes from Greg KH:
"Here are a bunch of small USB driver fixes for 6.8-rc3. Included in
here are:
- new usb-serial driver ids
- new dwc3 driver id added
- typec driver change revert
- ncm gadget driver endian bugfix
- xhci bugfixes for a number of reported issues
- usb hub bugfix for alternate settings
- ulpi driver debugfs memory leak fix
- chipidea driver bugfix
- usb gadget driver fixes
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-6.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (24 commits)
USB: serial: option: add Fibocom FM101-GL variant
USB: serial: qcserial: add new usb-id for Dell Wireless DW5826e
USB: serial: cp210x: add ID for IMST iM871A-USB
usb: typec: tcpm: fix the PD disabled case
usb: ucsi_acpi: Quirk to ack a connector change ack cmd
usb: ucsi_acpi: Fix command completion handling
usb: ucsi: Add missing ppm_lock
usb: ulpi: Fix debugfs directory leak
Revert "usb: typec: tcpm: fix cc role at port reset"
usb: gadget: pch_udc: fix an Excess kernel-doc warning
usb: f_mass_storage: forbid async queue when shutdown happen
USB: hub: check for alternate port before enabling A_ALT_HNP_SUPPORT
usb: chipidea: core: handle power lost in workqueue
usb: dwc3: gadget: Fix NULL pointer dereference in dwc3_gadget_suspend
usb: dwc3: pci: add support for the Intel Arrow Lake-H
usb: core: Prevent null pointer dereference in update_port_device_state
xhci: handle isoc Babble and Buffer Overrun events properly
xhci: process isoc TD properly when there was a transaction error mid TD.
xhci: fix off by one check when adding a secondary interrupter.
xhci: fix possible null pointer dereference at secondary interrupter removal
...
changes
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Merge tag 'i2c-for-6.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixlet from Wolfram Sang:
"MAINTAINERS update to point people to the new tree for i2c host driver
changes"
* tag 'i2c-for-6.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
MAINTAINERS: Update i2c host drivers repository
Core:
- return of is_slave_direction() for D2D dma
Driver fixes for:
- Documentaion fixes to resolve warnings for at_hdmac driver
- bunch of fsl driver fixes for memory leaks, and useless kfree
- TI edma and k3 fixes for packet error and null pointer checks
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Merge tag 'dmaengine-fix-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine fixes from Vinod Koul:
"Core:
- fix return value of is_slave_direction() for D2D dma
Driver fixes for:
- Documentaion fixes to resolve warnings for at_hdmac driver
- bunch of fsl driver fixes for memory leaks, and useless kfree
- TI edma and k3 fixes for packet error and null pointer checks"
* tag 'dmaengine-fix-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
dmaengine: at_hdmac: add missing kernel-doc style description
dmaengine: fix is_slave_direction() return false when DMA_DEV_TO_DEV
dmaengine: fsl-qdma: Remove a useless devm_kfree()
dmaengine: fsl-qdma: Fix a memory leak related to the queue command DMA
dmaengine: fsl-qdma: Fix a memory leak related to the status queue DMA
dmaengine: ti: k3-udma: Report short packet errors
dmaengine: ti: edma: Add some null pointer checks to the edma_probe
dmaengine: fsl-dpaa2-qdma: Fix the size of dma pools
dmaengine: at_hdmac: fix some kernel-doc warnings
i2c host and muxes related patches will be collected.
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Merge tag 'i2c-host-fixes-6.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current
Just a maintenance patch that updates the repository where the
i2c host and muxes related patches will be collected.
Vendor events:
- Intel Alderlake/Sapphire Rapids metric fixes, the CPU type ("cpu_atom", "cpu_core")
needs to be used as a prefix to be considered on a metric formula, detected via one
of the 'perf test' entries.
'perf test' fixes:
- Fix the creation of event selector lists on 'perf test' entries, by initializing
the sample ID flag, which is done by 'perf record', so this fix only the tests,
the common case isn't affected.
- Make 'perf list' respect debug settings (-v) to fix its 'perf test' entry.
- Fix 'perf script' test when python support isn't enabled.
- Special case 'perf script' tests on s390, where only DWARF call graphs are
supported and only on software events.
- Make 'perf daemon' signal test less racy.
Compiler warnings/errors:
- Remove needless malloc(0) call in 'perf top' that triggers -Walloc-size.
- Fix calloc() argument order to address error introduced in gcc-14.
Build:
- Make minimal shellcheck version to v0.6.0, avoiding the build to fail with older versions.
Sync kernel header copies:
- stat.h to pick STATX_MNT_ID_UNIQUE.
- msr-index.h to pick IA32_MKTME_KEYID_PARTITIONING.
- drm.h to pick DRM_IOCTL_MODE_CLOSEFB.
- unistd.h to pick {list,stat}mount, lsm_{[gs]et_self_attr,list_modules} syscall numbers.
- x86 cpufeatures to pick TDX, Zen, APIC MSR fence changes.
- x86's mem{cpy,set}_64.S used in 'perf bench'.
- Also, without tooling effects: asm-generic/unaligned.h, mount.h, fcntl.h, kvm headers.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v6.8-1-2024-02-01' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tools fixes from Arnaldo Carvalho de Melo:
"Vendor events:
- Intel Alderlake/Sapphire Rapids metric fixes, the CPU type
("cpu_atom", "cpu_core") needs to be used as a prefix to be
considered on a metric formula, detected via one of the 'perf test'
entries.
'perf test' fixes:
- Fix the creation of event selector lists on 'perf test' entries, by
initializing the sample ID flag, which is done by 'perf record', so
this fix affects only the tests, the common case isn't affected
- Make 'perf list' respect debug settings (-v) to fix its 'perf test'
entry
- Fix 'perf script' test when python support isn't enabled
- Special case 'perf script' tests on s390, where only DWARF call
graphs are supported and only on software events
- Make 'perf daemon' signal test less racy
Compiler warnings/errors:
- Remove needless malloc(0) call in 'perf top' that triggers
-Walloc-size
- Fix calloc() argument order to address error introduced in gcc-14
Build:
- Make minimal shellcheck version to v0.6.0, avoiding the build to
fail with older versions
Sync kernel header copies:
- stat.h to pick STATX_MNT_ID_UNIQUE
- msr-index.h to pick IA32_MKTME_KEYID_PARTITIONING
- drm.h to pick DRM_IOCTL_MODE_CLOSEFB
- unistd.h to pick {list,stat}mount,
lsm_{[gs]et_self_attr,list_modules} syscall numbers
- x86 cpufeatures to pick TDX, Zen, APIC MSR fence changes
- x86's mem{cpy,set}_64.S used in 'perf bench'
- Also, without tooling effects: asm-generic/unaligned.h, mount.h,
fcntl.h, kvm headers"
* tag 'perf-tools-fixes-for-v6.8-1-2024-02-01' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (21 commits)
perf tools headers: update the asm-generic/unaligned.h copy with the kernel sources
tools include UAPI: Sync linux/mount.h copy with the kernel sources
perf evlist: Fix evlist__new_default() for > 1 core PMU
tools headers: Update the copy of x86's mem{cpy,set}_64.S used in 'perf bench'
tools headers x86 cpufeatures: Sync with the kernel sources to pick TDX, Zen, APIC MSR fence changes
tools headers UAPI: Sync unistd.h to pick {list,stat}mount, lsm_{[gs]et_self_attr,list_modules} syscall numbers
perf vendor events intel: Alderlake/sapphirerapids metric fixes
tools headers UAPI: Sync kvm headers with the kernel sources
perf tools: Fix calloc() arguments to address error introduced in gcc-14
perf top: Remove needless malloc(0) call that triggers -Walloc-size
perf build: Make minimal shellcheck version to v0.6.0
tools headers UAPI: Update tools's copy of drm.h headers to pick DRM_IOCTL_MODE_CLOSEFB
perf test shell daemon: Make signal test less racy
perf test shell script: Fix test for python being disabled
perf test: Workaround debug output in list test
perf list: Add output file option
perf list: Switch error message to pr_err() to respect debug settings (-v)
perf test: Fix 'perf script' tests on s390
tools headers UAPI: Sync linux/fcntl.h with the kernel sources
tools arch x86: Sync the msr-index.h copy with the kernel sources to pick IA32_MKTME_KEYID_PARTITIONING
...
- Fix the return code for ring_buffer_poll_wait()
It was returing a -EINVAL instead of EPOLLERR.
- Zero out the tracefs_inode so that all fields are initialized.
The ti->private could have had stale data, but instead of
just initializing it to NULL, clear out the entire structure
when it is allocated.
- Fix a crash in timerlat
The hrtimer was initialized at read and not open, but is
canceled at close. If the file was opened and never read
the close will pass a NULL pointer to hrtime_cancel().
- Rewrite of eventfs.
Linus wrote a patch series to remove the dentry references in the
eventfs_inode and to use ref counting and more of proper VFS
interfaces to make it work.
- Add warning to put_ei() if ei is not set to free. That means
something is about to free it when it shouldn't.
- Restructure the eventfs_inode to make it more compact, and remove
the unused llist field.
- Remove the fsnotify*() funtions for when the inodes were being created
in the lookup code. It doesn't make sense to notify about creation
just because something is being looked up.
- The inode hard link count was not accurate. It was being updated
when a file was looked up. The inodes of directories were updating
their parent inode hard link count every time the inode was created.
That means if memory reclaim cleaned a stale directory inode and
the inode was lookup up again, it would increment the parent inode
again as well. Al Viro said to just have all eventfs directories
have a hard link count of 1. That tells user space not to trust it.
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Merge tag 'trace-v6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing and eventfs fixes from Steven Rostedt:
- Fix the return code for ring_buffer_poll_wait()
It was returing a -EINVAL instead of EPOLLERR.
- Zero out the tracefs_inode so that all fields are initialized.
The ti->private could have had stale data, but instead of just
initializing it to NULL, clear out the entire structure when it is
allocated.
- Fix a crash in timerlat
The hrtimer was initialized at read and not open, but is canceled at
close. If the file was opened and never read the close will pass a
NULL pointer to hrtime_cancel().
- Rewrite of eventfs.
Linus wrote a patch series to remove the dentry references in the
eventfs_inode and to use ref counting and more of proper VFS
interfaces to make it work.
- Add warning to put_ei() if ei is not set to free. That means
something is about to free it when it shouldn't.
- Restructure the eventfs_inode to make it more compact, and remove the
unused llist field.
- Remove the fsnotify*() funtions for when the inodes were being
created in the lookup code. It doesn't make sense to notify about
creation just because something is being looked up.
- The inode hard link count was not accurate.
It was being updated when a file was looked up. The inodes of
directories were updating their parent inode hard link count every
time the inode was created. That means if memory reclaim cleaned a
stale directory inode and the inode was lookup up again, it would
increment the parent inode again as well. Al Viro said to just have
all eventfs directories have a hard link count of 1. That tells user
space not to trust it.
* tag 'trace-v6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
eventfs: Keep all directory links at 1
eventfs: Remove fsnotify*() functions from lookup()
eventfs: Restructure eventfs_inode structure to be more condensed
eventfs: Warn if an eventfs_inode is freed without is_freed being set
tracing/timerlat: Move hrtimer_init to timerlat_fd open()
eventfs: Get rid of dentry pointers without refcounts
eventfs: Clean up dentry ops and add revalidate function
eventfs: Remove unused d_parent pointer field
tracefs: dentry lookup crapectomy
tracefs: Avoid using the ei->dentry pointer unnecessarily
eventfs: Initialize the tracefs inode properly
tracefs: Zero out the tracefs_inode when allocating it
ring-buffer: Clean ring_buffer_poll_wait() error return
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Merge tag 'gfs2-v6.8-rc2-revert' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 revert from Andreas Gruenbacher:
"It turns out that the commit to use GL_NOBLOCK flag for non-blocking
lookups has several issues, and not all of them have a simple fix"
* tag 'gfs2-v6.8-rc2-revert' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
Revert "gfs2: Use GL_NOBLOCK flag for non-blocking lookups"
dma-buf:
- heaps CMA page accounting fix
virtio-gpu:
- fix segment size
xe:
- A crash fix
- A fix for an assert due to missing mem_acces ref
- Only allow a single user-fence per exec / bind.
- Some sparse warning fixes
- Two fixes for compilation failures on various odd
combinations of gcc / arch pointed out on LKML.
- Fix a fragile partial allocation pointed out on LKML.
- A sysfs ABI documentation warning fix
amdgpu:
- Fix reboot issue seen on some 7000 series dGPUs
- Fix client init order for KFD
- Misc display fixes
- USB-C fix
- DCN 3.5 fixes
- Fix issues with GPU scheduler and GPU reset
- GPU firmware loading fix
- Misc fixes
- GC 11.5 fix
- VCN 4.0.5 fix
- IH overflow fix
amdkfd:
- SVM fixes
- Trap handler fix
- Fix device permission lookup
- Properly reserve BO before validating it
nouveau:
- fence/irq lock deadlock fix (second attempt)
- gsp command size fix
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Merge tag 'drm-fixes-2024-02-03' of git://anongit.freedesktop.org/drm/drm
Pul drm fixes from Dave Airlie:
"Regular weekly fixes, mostly amdgpu and xe. One nouveau fix is a
better fix for the deadlock and also helps with a sync race we were
seeing.
dma-buf:
- heaps CMA page accounting fix
virtio-gpu:
- fix segment size
xe:
- A crash fix
- A fix for an assert due to missing mem_acces ref
- Only allow a single user-fence per exec / bind.
- Some sparse warning fixes
- Two fixes for compilation failures on various odd combinations of
gcc / arch pointed out on LKML.
- Fix a fragile partial allocation pointed out on LKML.
- A sysfs ABI documentation warning fix
amdgpu:
- Fix reboot issue seen on some 7000 series dGPUs
- Fix client init order for KFD
- Misc display fixes
- USB-C fix
- DCN 3.5 fixes
- Fix issues with GPU scheduler and GPU reset
- GPU firmware loading fix
- Misc fixes
- GC 11.5 fix
- VCN 4.0.5 fix
- IH overflow fix
amdkfd:
- SVM fixes
- Trap handler fix
- Fix device permission lookup
- Properly reserve BO before validating it
nouveau:
- fence/irq lock deadlock fix (second attempt)
- gsp command size fix
* tag 'drm-fixes-2024-02-03' of git://anongit.freedesktop.org/drm/drm: (35 commits)
nouveau: offload fence uevents work to workqueue
nouveau/gsp: use correct size for registry rpc.
drm/amdgpu/pm: Use inline function for IP version check
drm/hwmon: Fix abi doc warnings
drm/xe: Make all GuC ABI shift values unsigned
drm/xe/vm: Subclass userptr vmas
drm/xe: Use LRC prefix rather than CTX prefix in lrc desc defines
drm/xe: Don't use __user error pointers
drm/xe: Annotate mcr_[un]lock()
drm/xe: Only allow 1 ufence per exec / bind IOCTL
drm/xe: Grab mem_access when disabling C6 on skip_guc_pc platforms
drm/xe: Fix crash in trace_dma_fence_init()
drm/amdgpu: Reset IH OVERFLOW_CLEAR bit
drm/amdgpu: remove asymmetrical irq disabling in vcn 4.0.5 suspend
drm/amdgpu: drm/amdgpu: remove golden setting for gfx 11.5.0
drm/amdkfd: reserve the BO before validating it
drm/amdgpu: Fix missing error code in 'gmc_v6/7/8/9_0_hw_init()'
drm/amd/display: Fix buffer overflow in 'get_host_router_total_dp_tunnel_bw()'
drm/amd/display: Add NULL check for kzalloc in 'amdgpu_dm_atomic_commit_tail()'
drm/amd: Don't init MEC2 firmware when it fails to load
...
- a fix for the fix to deal with newer laptops which get confused by the
"GET ID" command when probing for PS/2 keyboards
- a couple of tweaks to i8042 to handle Clevo NS70PU and Lifebook U728
laptops
- a change to bcm5974 to validate that the device has appropriate
endpoints
- an addition of new product ID to xpad driver to recognize Lenovo
Legion Go controllers
- a quirk to Goodix controller to deal with extra GPIO described in ACPI
tables on some devices.
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Merge tag 'input-for-v6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- a fix for the fix to deal with newer laptops which get confused by
the "GET ID" command when probing for PS/2 keyboards
- a couple of tweaks to i8042 to handle Clevo NS70PU and Lifebook U728
laptops
- a change to bcm5974 to validate that the device has appropriate
endpoints
- an addition of new product ID to xpad driver to recognize Lenovo
Legion Go controllers
- a quirk to Goodix controller to deal with extra GPIO described in
ACPI tables on some devices.
* tag 'input-for-v6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: i8042 - add Fujitsu Lifebook U728 to i8042 quirk table
Input: i8042 - fix strange behavior of touchpad on Clevo NS70PU
Input: atkbd - do not skip atkbd_deactivate() when skipping ATKBD_CMD_GETID
Input: atkbd - skip ATKBD_CMD_SETLEDS when skipping ATKBD_CMD_GETID
Input: bcm5974 - check endpoint type before starting traffic
Input: xpad - add Lenovo Legion Go controllers
Input: goodix - accept ACPI resources with gpio_count == 3 && gpio_int_idx == 0
