Use of FIELD_PREP_CONST() was a thinko - it's meant to be used for
(constant) initialisers, not constant values.
Use FIELD_PREP() where possible. It has better error checking and is
therefore the preferred macro to use in those cases.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20240710-phy-field-prep-v1-1-2fa3f7dc4fc7@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
The local variable period uses at most 32 bits and can be a u32 instead
of unsigned long. The upper 32 bits are all 0 after masking and right
shifting cap by HPET_COUNTER_CLK_PERIOD_SHIFT and can be discarded.
Since do_div() casts the divisor to u32 anyway, changing the data type
of period to u32 also removes the following Coccinelle/coccicheck
warning reported by do_div.cocci:
WARNING: do_div() does a 64-by-32 division, please consider using div64_ul instead
Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240710215238.799239-2-thorsten.blum@toblux.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mirsad Todorovac reported a compiler warning in "ni_stc.h" due to the
variable `range_ni_E_ao_ext` being defined but unused when building the
"ni_routes_test" module.
The `range_ni_E_ao_ext` variable is tentatively defined in "ni_stc.h"
(with internal linkage) and fully defined in "ni_mio_common.c".
"ni_stc.h" and/or "ni_mio_common.c" are included by the "ni_atmio",
"ni_pcimio", "ni_mio_cs", and "ni_routes_test" modules, which will each
get their own local `range_ni_E_ao_ext` variable defined. However, it
is not used by the "ni_mio_cs" or "ni_routes_test" modules. They should
get optimized out, but there are compiler warnings about the unused
variable when built with the `W=1` option.
Move the full definition of the variable from "ni_mio_common.c" into the
places where it is used, namely "ni_atmio.c" and "ni_pcimio.c", and
remove the tentative definition of the variable from "ni_stc.h". This
fixes the compiler warnings.
Reported-by: Mirsad Todorovac <mtodorovac69@gmail.com>
Link: https://lore.kernel.org/lkml/3bab8580-c01a-4183-94af-ba3193c94c0e@gmail.com/
Cc: Mirsad Todorovac <mtodorovac69@gmail.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20240710173719.3559437-1-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Convert the bindings for the SATA PHY on both apq8064 and ipq806x from
the old text format to yaml.
Signed-off-by: Rayyan Ansari <rayyan.ansari@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240715130854.53501-2-rayyan.ansari@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
The following bug was triggered on a system built with
CONFIG_DEBUG_PREEMPT=y:
# echo p > /proc/sysrq-trigger
BUG: using smp_processor_id() in preemptible [00000000] code: sh/117
caller is perf_event_print_debug+0x1a/0x4c0
CPU: 3 UID: 0 PID: 117 Comm: sh Not tainted 6.11.0-rc1 #109
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0x4f/0x60
check_preemption_disabled+0xc8/0xd0
perf_event_print_debug+0x1a/0x4c0
__handle_sysrq+0x140/0x180
write_sysrq_trigger+0x61/0x70
proc_reg_write+0x4e/0x70
vfs_write+0xd0/0x430
? handle_mm_fault+0xc8/0x240
ksys_write+0x9c/0xd0
do_syscall_64+0x96/0x190
entry_SYSCALL_64_after_hwframe+0x4b/0x53
This is because the commit d4b294bf84 ("perf/x86: Hybrid PMU support
for counters") took smp_processor_id() outside the irq critical section.
If a preemption occurs in perf_event_print_debug() and the task is
migrated to another cpu, we may get incorrect pmu debug information.
Move smp_processor_id() back inside the irq critical section to fix this
issue.
Fixes: d4b294bf84 ("perf/x86: Hybrid PMU support for counters")
Signed-off-by: Li Huafei <lihuafei1@huawei.com>
Reviewed-and-tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20240729220928.325449-1-lihuafei1@huawei.com
Per the example of:
!atomic_cmpxchg(&key->enabled, 0, 1)
the inverse was written as:
atomic_cmpxchg(&key->enabled, 1, 0)
except of course, that while !old is only true for old == 0, old is
true for everything except old == 0.
Fix it to read:
atomic_cmpxchg(&key->enabled, 1, 0) == 1
such that only the 1->0 transition returns true and goes on to disable
the keys.
Fixes: 83ab38ef0a ("jump_label: Fix concurrency issues in static_key_slow_dec()")
Reported-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Darrick J. Wong <djwong@kernel.org>
Link: https://lkml.kernel.org/r/20240731105557.GY33588@noisy.programming.kicks-ass.net
Zhengchao Shao says:
====================
net/smc: do some cleanups in smc module
Do some cleanups in smc module.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The input parameter "is_rmb" of the smcr_new_buf_create function
has never been used, remove it.
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the SMC client perform CLC handshake, it will check whether
the clc header type is correct in receiving SMC_CLC_ACCEPT packet.
The specific invoking path is as follows:
__smc_connect
smc_connect_clc
smc_clc_wait_msg
smc_clc_msg_hdr_valid
smc_clc_msg_acc_conf_valid
Therefore, the smc_connect_check_aclc interface invoked by
__smc_connect does not need to check type again.
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the SMC client begins to connect to server, smcd_version is set
to SMC_V1 + SMC_V2. If fail to get VLAN ID, only SMC_V2 information
is left in smcd_version. And smcd_version will not be changed to 0.
Therefore, remove the fallback caused by the failure to get VLAN ID.
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Because linux/err.h is unreferenced in smc_loopback.h file, so
remove it.
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: D. Wythe <alibuda@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Intel Arrow Lake-H/U has the same GPIO hardware than Meteor Lake-P but
the ACPI ID is different. Add this new ACPI ID to the list of supported
devices.
Cc: stable@vger.kernel.org
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
The recent fix for making the take over of the broadcast timer more
reliable retrieves a per CPU pointer in preemptible context.
This went unnoticed as compilers hoist the access into the non-preemptible
region where the pointer is actually used. But of course it's valid that
the compiler keeps it at the place where the code puts it which rightfully
triggers:
BUG: using smp_processor_id() in preemptible [00000000] code:
caller is hotplug_cpu__broadcast_tick_pull+0x1c/0xc0
Move it to the actual usage site which is in a non-preemptible region.
Fixes: f7d43dd206 ("tick/broadcast: Make takeover of broadcast hrtimer reliable")
Reported-by: David Wang <00107082@163.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Yu Liao <liaoyu15@huawei.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/87ttg56ers.ffs@tglx
Currently, 8250_platform driver is used only for devices with fixed
serial ports (plat_serial8250_port). Extend this driver for any generic
16550A platform devices which can be probed using standard hardware
discovery mechanisms like ACPI.
This is required in particular for RISC-V which has non-PNP generic
16550A compatible UART that needs to be enumerated as ACPI platform
device.
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Link: https://lore.kernel.org/r/20240730051218.767580-1-sunilvl@ventanamicro.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This adds suspend/resume support for the 8250_bcm2835aux
driver to provide power management support on attached
devices.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Link: https://lore.kernel.org/r/20240728130029.78279-7-wahrenst@gmx.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
While gs101 needs exactly two clocks for the UART, the schema doesn't
currently limit the maximum number to this and instead the default of
five from this schema is applied.
Update the schema accordingly.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20240725-gs101-uart-binding-v5-2-e237be8253a9@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This binding currently duplicates the permitted clock-names in various
places, and when adding more compatibles, clock-names will have to be
duplicated even more.
The reason is:
1) subschemas (-if: ...), still have to match the top-level:
pattern: '^clk_uart_baud[0-3]$'
2) there is one compatible that doesn't follow sequential numbering for
the clock names (samsung,s3c6400-uart)
3) when limiting the number of clock-names, we also want to enforce
sequential names
Because of 1) and 2), the patterns can not simply be changed to
constant strings, and later overridden in a different subschema (for
samsung,s3c6400-uart only).
Since we can't populate the top-level clock-names based on the
compatible, and because when limiting the number of items we generally
want sequential numbers and not a pattern, move the permitted strings
into a subschema of its own and populate it based on the compatible:
* 'uart clk_uart_baud2 clk_uart_baud3' for the one outlier
* 'uart clk_uart_baud0..3' for everything else
This way we can avoid having to duplicate the permitted names
everywhere.
While at it, add blank lines as per the universal style, which is to
have blank lines between properties, except where they are booleans.
Also add another example using a compatible that uses the default
clock-names scheme, as opposed to the existing example that uses
samsung,s3c6400-uart's non-default clock-names. This allows testing
both versions of the clock-names property when running
dt_binding_check.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20240725-gs101-uart-binding-v5-1-e237be8253a9@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
After commit 3a50365d8c ("serial: 8250: Add OF support for Xscale
variant"), 8250_of can support the xscale variant. Now, let's add
the earlycon support for xscale too.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://lore.kernel.org/r/20240711160720.3488-3-jszhang@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There are two other drivers that bind to "mrvl,mmp-uart": the 8250_of
and the 8250_pxa. The previous one is generic and the latter is binded
to ARCH_PXA || ARCH_MMP. Now we may have pxa programming compatible
HW to support, making use of the generic 8250_of seems a good idea.
However, there's no earlycon support if we go with this solution. So
move the mmp|pxa-uart earlycon code to core 8250_early.c.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://lore.kernel.org/r/20240711160720.3488-2-jszhang@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Previously 8250_dma used a circular xmit->buf as DMA output buffer. This
causes messages that wrap around in the circular buffer to be
transmitted using 2 DMA transfers. Depending on baud rate and processor
load this can cause an interchar gap in the middle of the message. On
the receiving end the gap may cause a short receive timeout, possibly
long enough to terminate a DMA transfer, but too short to restart a
receive DMA transfer in time thus causing a receive buffer overrun.
This is especially a problem for devices with high speed UARTs (HSU)
where even deep 64 byte FIFO's are not sufficient to handle interrupt
latency.
The circular buffer has now been replaced by kfifo which requires a SG
list with a single entry, which still causes 2 dma transfers when a wrap
around occurs. Fix this by allowing up to 2 entries in the sgl.
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Ferry Toth <ftoth@exalondelft.nl>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240716214055.102269-1-ftoth@exalondelft.nl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Letting the compiler remove these functions when the kernel is built
without CONFIG_PM_SLEEP support is simpler and less error prone than the
use of #ifdef based kernel configuration guards.
Signed-off-by: Raphael Gallais-Pou <rgallaispou@gmail.com>
Link: https://lore.kernel.org/r/20240716180010.126987-1-rgallaispou@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
conmakehash uses getenv("abs_srctree") from the environment to strip
the absolute path from the generated sources.
However since commit e2bad142bb ("kbuild: unexport abs_srctree and
abs_objtree") this environment variable no longer gets set.
Instead use basename() to indicate the used file in a comment of the
generated source file.
Fixes: 3bd85c6c97 ("tty: vt: conmakehash: Don't mention the full path of the input in output")
Cc: stable <stable@kernel.org>
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Link: https://lore.kernel.org/stable/20240725132056.9151-1-max.oss.09%40gmail.com
Link: https://lore.kernel.org/r/20240725132056.9151-1-max.oss.09@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge fixes for the int340x thermal driver handling of MSI IRQs:
- Fix MSI error path cleanup in int340x, allow it to work with a
subset of thermal MSI IRQs if some of them are not working and
make it free all MSI IRQs on module exit (Srinivas Pandruvada).
* thermal-intel:
thermal: intel: int340x: Free MSI IRQ vectors on module exit
thermal: intel: int340x: Allow limited thermal MSI support
thermal: intel: int340x: Fix kernel warning during MSI cleanup
When enabling access to the special register set, Receiver time-out and
RHR interrupts can happen. In this case, the IRQ handler will try to read
from the FIFO thru the RHR register at address 0x00, but address 0x00 is
mapped to DLL register, resulting in erroneous FIFO reading.
Call graph example:
sc16is7xx_startup(): entry
sc16is7xx_ms_proc(): entry
sc16is7xx_set_termios(): entry
sc16is7xx_set_baud(): DLH/DLL = $009C --> access special register set
sc16is7xx_port_irq() entry --> IIR is 0x0C
sc16is7xx_handle_rx() entry
sc16is7xx_fifo_read(): --> unable to access FIFO (RHR) because it is
mapped to DLL (LCR=LCR_CONF_MODE_A)
sc16is7xx_set_baud(): exit --> Restore access to general register set
Fix the problem by claiming the efr_lock mutex when accessing the Special
register set.
Fixes: dfeae619d7 ("serial: sc16is7xx")
Cc: stable@vger.kernel.org
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://lore.kernel.org/r/20240723125302.1305372-3-hugo@hugovil.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sometimes, when a packet is received on channel A at almost the same time
as a packet is about to be transmitted on channel B, we observe with a
logic analyzer that the received packet on channel A is transmitted on
channel B. In other words, the Tx buffer data on channel B is corrupted
with data from channel A.
The problem appeared since commit 4409df5866 ("serial: sc16is7xx: change
EFR lock to operate on each channels"), which changed the EFR locking to
operate on each channel instead of chip-wise.
This commit has introduced a regression, because the EFR lock is used not
only to protect the EFR registers access, but also, in a very obscure and
undocumented way, to protect access to the data buffer, which is shared by
the Tx and Rx handlers, but also by each channel of the IC.
Fix this regression first by switching to kfifo_out_linear_ptr() in
sc16is7xx_handle_tx() to eliminate the need for a shared Rx/Tx buffer.
Secondly, replace the chip-wise Rx buffer with a separate Rx buffer for
each channel.
Fixes: 4409df5866 ("serial: sc16is7xx: change EFR lock to operate on each channels")
Cc: stable@vger.kernel.org
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://lore.kernel.org/r/20240723125302.1305372-2-hugo@hugovil.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Say there are 3 trip points A, B, C sorted in ascending temperature
order with no hysteresis. If the zone temerature is exactly equal to
B, thermal_zone_set_trips() will set the boundaries to A and C and the
hardware will not catch any crossing of B (either way) until either A
or C is crossed and the boundaries are changed.
To avoid that, use non-strict inequalities when comparing the trip
threshold to the zone temperature in thermal_zone_set_trips().
In the example above, it will cause both boundaries to be set to B,
which is desirable because an interrupt will trigger when the zone
temperature becomes different from B regardless of which way it goes.
That will allow a new interval to be set depending on the direction of
the zone temperature change.
Fixes: 893bae9223 ("thermal: trip: Make thermal_zone_set_trips() use trip thresholds")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/12509184.O9o76ZdvQC@rjwysocki.net
Calling ioctl TIOCSSERIAL with an invalid baud_base can
result in uartclk being zero, which will result in a
divide by zero error in uart_get_divisor(). The check for
uartclk being zero in uart_set_info() needs to be done
before other settings are made as subsequent calls to
ioctl TIOCSSERIAL for the same port would be impacted if
the uartclk check was done where uartclk gets set.
Oops: divide error: 0000 PREEMPT SMP KASAN PTI
RIP: 0010:uart_get_divisor (drivers/tty/serial/serial_core.c:580)
Call Trace:
<TASK>
serial8250_get_divisor (drivers/tty/serial/8250/8250_port.c:2576
drivers/tty/serial/8250/8250_port.c:2589)
serial8250_do_set_termios (drivers/tty/serial/8250/8250_port.c:502
drivers/tty/serial/8250/8250_port.c:2741)
serial8250_set_termios (drivers/tty/serial/8250/8250_port.c:2862)
uart_change_line_settings (./include/linux/spinlock.h:376
./include/linux/serial_core.h:608 drivers/tty/serial/serial_core.c:222)
uart_port_startup (drivers/tty/serial/serial_core.c:342)
uart_startup (drivers/tty/serial/serial_core.c:368)
uart_set_info (drivers/tty/serial/serial_core.c:1034)
uart_set_info_user (drivers/tty/serial/serial_core.c:1059)
tty_set_serial (drivers/tty/tty_io.c:2637)
tty_ioctl (drivers/tty/tty_io.c:2647 drivers/tty/tty_io.c:2791)
__x64_sys_ioctl (fs/ioctl.c:52 fs/ioctl.c:907
fs/ioctl.c:893 fs/ioctl.c:893)
do_syscall_64 (arch/x86/entry/common.c:52
(discriminator 1) arch/x86/entry/common.c:83 (discriminator 1))
entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
Reported-by: syzkaller <syzkaller@googlegroups.com>
Cc: stable@vger.kernel.org
Signed-off-by: George Kennedy <george.kennedy@oracle.com>
Rule: add
Link: https://lore.kernel.org/stable/1721148848-9784-1-git-send-email-george.kennedy%40oracle.com
Link: https://lore.kernel.org/r/1721219078-3209-1-git-send-email-george.kennedy@oracle.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If the IFS scan test exits prematurely due to a timeout before
completing a single run, the union ifs_status remains uninitialized,
leading to incorrect test status reporting. To prevent this, always
initialize the union ifs_status to zero.
Fixes: 2b40e654b7 ("platform/x86/intel/ifs: Add scan test support")
Suggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Jithu Joseph <jithu.joseph@intel.com>
Reviewed-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: https://lore.kernel.org/r/20240730155930.1754744-1-sathyanarayanan.kuppuswamy@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
There were a few instances of typos that lead could to confusion
when reading. The following words have been corrected:
Binay -> Binary
singe -> single
chaged -> changed
Signed-off-by: Luis Felipe Hernandez <luis.hernandez093@gmail.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20240731001602.259338-1-luis.hernandez093@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Commit 7ba5ca32fe ("ALSA: firewire-lib: operate for period elapse event
in process context") removed the process context workqueue from
amdtp_domain_stream_pcm_pointer() and update_pcm_pointers() to remove
its overhead.
With RME Fireface 800, this lead to a regression since
Kernels 5.14.0, causing an AB/BA deadlock competition for the
substream lock with eventual system freeze under ALSA operation:
thread 0:
* (lock A) acquire substream lock by
snd_pcm_stream_lock_irq() in
snd_pcm_status64()
* (lock B) wait for tasklet to finish by calling
tasklet_unlock_spin_wait() in
tasklet_disable_in_atomic() in
ohci_flush_iso_completions() of ohci.c
thread 1:
* (lock B) enter tasklet
* (lock A) attempt to acquire substream lock,
waiting for it to be released:
snd_pcm_stream_lock_irqsave() in
snd_pcm_period_elapsed() in
update_pcm_pointers() in
process_ctx_payloads() in
process_rx_packets() of amdtp-stream.c
? tasklet_unlock_spin_wait
</NMI>
<TASK>
ohci_flush_iso_completions firewire_ohci
amdtp_domain_stream_pcm_pointer snd_firewire_lib
snd_pcm_update_hw_ptr0 snd_pcm
snd_pcm_status64 snd_pcm
? native_queued_spin_lock_slowpath
</NMI>
<IRQ>
_raw_spin_lock_irqsave
snd_pcm_period_elapsed snd_pcm
process_rx_packets snd_firewire_lib
irq_target_callback snd_firewire_lib
handle_it_packet firewire_ohci
context_tasklet firewire_ohci
Restore the process context work queue to prevent deadlock
AB/BA deadlock competition for ALSA substream lock of
snd_pcm_stream_lock_irq() in snd_pcm_status64()
and snd_pcm_stream_lock_irqsave() in snd_pcm_period_elapsed().
revert commit 7ba5ca32fe ("ALSA: firewire-lib: operate for period
elapse event in process context")
Replace inline description to prevent future deadlock.
Cc: stable@vger.kernel.org
Fixes: 7ba5ca32fe ("ALSA: firewire-lib: operate for period elapse event in process context")
Reported-by: edmund.raile <edmund.raile@proton.me>
Closes: https://lore.kernel.org/r/kwryofzdmjvzkuw6j3clftsxmoolynljztxqwg76hzeo4simnl@jn3eo7pe642q/
Signed-off-by: Edmund Raile <edmund.raile@protonmail.com>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20240730195318.869840-3-edmund.raile@protonmail.com
Add a schema validator to vitesse,vsc73xx.yaml for MAC-level RGMII delays
in the CPU port. Additionally, valid values for VSC73XX were defined,
and a common definition for the RX and TX valid range was created.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch switches hardcoded RGMII transmit/receive delay to
a configurable value. Delay values are taken from the properties of
the CPU port: 'tx-internal-delay-ps' and 'rx-internal-delay-ps'.
The default value is configured to 2.0 ns to maintain backward
compatibility with existing code.
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
The tx_resolution field is never read. In theory you can imagine this
field being useful for detecting whether the transmitter has the
resolution for the message you are trying to send, but I am not aware of
any hardware where this could be an issue.
Just remove.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
IR Controller could be used and updated by other processor
while kernel has been suspended.
Reinitialize IR Controller just in case while kernel is resuming.
Signed-off-by: Zelong Dong <zelong.dong@amlogic.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
On resume of the Raspberry Pi the dwc2 driver fails to enable
HCD_FLAG_HW_ACCESSIBLE before re-enabling the interrupts.
This causes a situation where both handler ignore a incoming port
interrupt and force the upper layers to disable the dwc2 interrupt line.
This leaves the USB interface in a unusable state:
irq 66: nobody cared (try booting with the "irqpoll" option)
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 6.10.0-rc3
Hardware name: BCM2835
Call trace:
unwind_backtrace from show_stack+0x10/0x14
show_stack from dump_stack_lvl+0x50/0x64
dump_stack_lvl from __report_bad_irq+0x38/0xc0
__report_bad_irq from note_interrupt+0x2ac/0x2f4
note_interrupt from handle_irq_event+0x88/0x8c
handle_irq_event from handle_level_irq+0xb4/0x1ac
handle_level_irq from generic_handle_domain_irq+0x24/0x34
generic_handle_domain_irq from bcm2836_chained_handle_irq+0x24/0x28
bcm2836_chained_handle_irq from generic_handle_domain_irq+0x24/0x34
generic_handle_domain_irq from generic_handle_arch_irq+0x34/0x44
generic_handle_arch_irq from __irq_svc+0x88/0xb0
Exception stack(0xc1b01f20 to 0xc1b01f68)
1f20: 0005c0d4 00000001 00000000 00000000 c1b09780 c1d6b32c c1b04e54 c1a5eae8
1f40: c1b04e90 00000000 00000000 00000000 c1d6a8a0 c1b01f70 c11d2da8 c11d4160
1f60: 60000013 ffffffff
__irq_svc from default_idle_call+0x1c/0xb0
default_idle_call from do_idle+0x21c/0x284
do_idle from cpu_startup_entry+0x28/0x2c
cpu_startup_entry from kernel_init+0x0/0x12c
handlers:
[<f539e0f4>] dwc2_handle_common_intr
[<75cd278b>] usb_hcd_irq
Disabling IRQ #66
Disabling clock gating workaround this issue.
Fixes: 0112b7ce68 ("usb: dwc2: Update dwc2_handle_usb_suspend_intr function.")
Link: https://lore.kernel.org/linux-usb/3fd0c2fb-4752-45b3-94eb-42352703e1fd@gmx.net/T/
Link: https://lore.kernel.org/all/5e8cbce0-3260-2971-484f-fc73a3b2bd28@synopsys.com/
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Link: https://lore.kernel.org/r/20240728130029.78279-5-wahrenst@gmx.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The commit c4a0f7a6ab ("usb: dwc2: Skip clock gating on Samsung
SoCs") introduced a parameter to skip enabling clock gating mode
even the hardware platform should supports it.
In order to make this more visible also print this in show
parameters of debugfs.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20240728130029.78279-3-wahrenst@gmx.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Unlike MSM SoC, IPQ SoC doesn't use RPM to aggregate bandwidth
requests and scale the NoC frequency. The NoCs are turned on and
set to a specific frequency at boot time and that is used for the
lifetime of the system. Hence interconnect was not considered
previously.
The same approach was used for PCIe and at that point the
consensus was to move to interconnect. Hence implemented the ICC
driver and updating the existing USB driver to use the ICC
driver.
USB uses icc-clk framework to enable the NoC interface clock.
Hence the 'iface' clock is removed from the list of clocks.
Update the clock-names list accordingly.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
Link: https://lore.kernel.org/r/20240730054817.1915652-3-quic_varada@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Compatible can be A or B+A, not A or B or A+B. B got added afterwards,
we want B+A not A+B. A=ti,j721e-usb and B=ti,am64-usb.
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://lore.kernel.org/r/20240726-s2r-cdns-v5-1-8664bfb032ac@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
IPQ5332 has only three interrupts. Update the constraints
to fix the following dt_binding_check errors.
interrupt-names: ['pwr_event', 'dp_hs_phy_irq', 'dm_hs_phy_irq'] is too short
Fixes: 53c6d854be ("dt-bindings: usb: dwc3: Clean up hs_phy_irq in binding")
Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20240723100151.402300-2-quic_varada@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The bindings require two compatibles to be used: qcom,sc7280-eud
followed by fallback qcom,eud. The convention is to use fallback
compatible in OF device ID tables, unless some device-specific quirks
are needed.
This will also simplify matching any new devices - they will use
existing OF device ID entry, instead of adding a new one.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240731054438.9073-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add icount support for the transmitting and receiving characters. This
will make the tty LED trigger work with the ttyGS devices.
Signed-off-by: Michael Walle <mwalle@kernel.org>
Link: https://lore.kernel.org/r/20240730193840.2580358-1-mwalle@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove unnecessary semicolon at the end of the switch statement.
This is detected by coccinelle.
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240715073947.4028319-1-nichen@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add USB_SPEED_SUPER_PLUS as valid argument to allow
to attach USB SuperSpeed+ devices. Update speed of
virtual HC to SuperSpeed+ as well.
Signed-off-by: Łukasz Bartosik <ukaszb@chromium.org>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240715131131.3876380-1-ukaszb@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
