Freescale QUICC Engine:
- Use generic I/O helpers in interrupt controller for IO Ports
- Move CONFIG_QE_GPIO out of powerpc
- Fix DT scan for GPIO nodes
- Convert IO ports interrupt controller to generic IRQ chip
- Add support of IRQs in GPIO controller
- Implement get_direction() in GPIO controller
- Check platform_driver_register() in interrupt controller for IO Ports
Data Path I/O:
- Replace maintainer
- Remove redundant dev_err()
- Fix kernel-doc typos
Freescale Management Complex:
- Use strscpy() to copy strings into arrays
- Remove redundant dev_err()
- Drop unused assignment of acpi_device_id::driver_data
Other changes:
- Add kernel and device tree binding support for RCW override,
completing the SerDes PHY driver functionality
- Fix kernel-doc warnings and typos in DPAA header
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Merge tag 'soc_fsl-7.3-1' of https://git.kernel.org/pub/scm/linux/kernel/git/chleroy/linux into soc/drivers
FSL SOC Changes for 7.3
Freescale QUICC Engine:
- Use generic I/O helpers in interrupt controller for IO Ports
- Move CONFIG_QE_GPIO out of powerpc
- Fix DT scan for GPIO nodes
- Convert IO ports interrupt controller to generic IRQ chip
- Add support of IRQs in GPIO controller
- Implement get_direction() in GPIO controller
- Check platform_driver_register() in interrupt controller for IO Ports
Data Path I/O:
- Replace maintainer
- Remove redundant dev_err()
- Fix kernel-doc typos
Freescale Management Complex:
- Use strscpy() to copy strings into arrays
- Remove redundant dev_err()
- Drop unused assignment of acpi_device_id::driver_data
Other changes:
- Add kernel and device tree binding support for RCW override,
completing the SerDes PHY driver functionality
- Fix kernel-doc warnings and typos in DPAA header
* tag 'soc_fsl-7.3-1' of https://git.kernel.org/pub/scm/linux/kernel/git/chleroy/linux: (31 commits)
bus: fsl-mc: drop unused assignment of acpi_device_id::driver_data
soc: fsl: qe: check platform_driver_register() in qe_ic_of_init()
phy: lynx-10g: use RCW override procedure for dynamic protocol change
soc: fsl: guts: implement the RCW override procedure
dt-bindings: fsl: layerscape-dcfg: define DCFG_DCSR region
soc: fsl: guts: make fsl_soc_data available after fsl_guts_init()
soc: fsl: guts: make it easier to determine on which SoC we are running
soc: fsl: guts: add a central fsl_guts_read() function
soc: fsl: guts: add a global structure to hold state
soc: fsl: guts: use a macro to encode the DCFG CCSR space
soc: fsl: guts: perform fsl_guts_init() error teardown in reverse order of setup
soc: fsl: dpio: fix kernel-doc typos
soc: fsl: fix kernel-doc warnings and typos
bus: fsl-mc: Remove redundant dev_err()
soc: fsl: qe: Add support of IRQs in QE GPIO
soc: fsl: qe: Rename irq variable to parent_irq
soc: fsl: qe: Convert to generic IRQ chip
soc: fsl: qe: Handle spurious interrupts
soc: fsl: qe: Iterate over all pending interrupts in cascade handler
soc: fsl: qe: Use generic_handle_domain_irq()
...
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
qe_ic_of_init() ignored the return value of platform_driver_register()
and always returned success. Propagate the error to the initcall.
Fixes: be7ecbd240 ("soc: fsl: qe: convert QE interrupt controller to platform_device")
Signed-off-by: Linkai Gong <gonglinkai@kylinos.cn>
Reviewed-by: Maxim Kochetkov <fido_max@inbox.ru>
Link: https://lore.kernel.org/r/20260731094608.1883391-1-gonglinkai@kylinos.cn
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Add support for the RCW override procedure which enables runtime
reconfiguration of the protocol running on a SerDes lane. The procedure
is done through the DCFG DCSR space which now can be defined as the
second memory region of the guts DT node.
Support is added on the following SoCs: LS1046A, LS1088A, LS2088A.
The procedure is exported to the "client" driver - the Lynx10G SerDes
PHY driver - through the following functions:
- fsl_guts_lane_validate() used to validate that changing the protocol
on a specific lane is supported.
- fsl_guts_lane_set_mode() which can be used to request the RCW
procedure be executed for a specific lane.
Since the RCW override procedure is different depending on the SoC, the
private fsl_soc_data structure is updated with two new per SoC callbacks
(.serdes_get_rcw_override() and .serdes_init_rcwcr()) which get used
from the generic fsl_guts_lane_set_mode() function. These two callbacks
hide all the SoC specific register offsets, masks and values so that the
_set_mode() procedure is straightforward.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/20260721231603.67865-9-vladimir.oltean@nxp.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
In a future change, struct fsl_soc_data will be extended with methods
for performing RCW override.
Since this will be performed from a calling context outside
fsl_guts_init(), we need to keep track of the soc_data that we determine
at fsl_guts_init() time, so we can reference it later.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/20260721231603.67865-7-vladimir.oltean@nxp.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
The guts driver will need to easily determine on which SoC it's running
when it will need to perform RCW override at runtime. The guts driver
knows this already because fsl_guts_init() reads the QorIQ/Layerscape
architectural System Version Register (SVR), but it doesn't save this
for later lookups.
Add a new qoriq_die enum to be used as an index in the fsl_soc_die
array. A new fsl_soc_die_match_one() function is also added so that we
can directly determine if the SVR is a match with a specific die.
The SVR value read from the DCFG CCSR is also kept in the global soc
structure so that it can be accessed when needed.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20260721231603.67865-6-vladimir.oltean@nxp.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Add a central fsl_guts_read() function which will take into account the
endianness that was already determined. No point is duplicating the
if-else statement each time we need to read a DCFG register.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20260721231603.67865-5-vladimir.oltean@nxp.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Add the fsl_soc_guts structure in order to pass information like base
addresses, endianness etc between the init time and the runtime
operations (RCW override) which will get added in future patches.
There is no point in mapping and unmapping the DCFG CCSR space every
time we need to make a read, just map it once and keep its reference in
this new global structure.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20260721231603.67865-4-vladimir.oltean@nxp.com
[chleroy: fixed typo on 'structure' in commit message]
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Instead of using a hardcoded value when iomapping the DCFG CCSR space,
add a new macro for it. The code will be easier to follow this way,
especially when we add support for the DCFG DCSR space as well.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20260721231603.67865-3-vladimir.oltean@nxp.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
fsl_guts_init() is about to get much more complicated and the central
error handling procedure cannot scale in its current design, unless we
add a lot of "if" conditions to detect what has been allocated and what
hasn't.
Currently the code relies on the fact that kfree(NULL) is safe, but this
doesn't scale to the case where "soc_dev_attr" itself is NULL, because
this would dereference "soc_dev_attr->family" and friends of a NULL
pointer.
Convert to the more typical error handling pattern where the teardown is
in the strict reverse order of setup, and a teardown step is only called
if its corresponding setup step was executed.
At the same time, maintain the optionality of soc_dev_attr->serial_number
by not checking whether that kasprintf() has returned NULL. In the error
path, kfree(NULL) is safe, so we don't need to add an "if" condition for
it. Michael Walle has confirmed that ignoring the error was intentional,
and we preserve that:
https://lore.kernel.org/linux-phy/DK44809N7Y8I.J2Z3U4N32H0Q@kernel.org/
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/20260721231603.67865-2-vladimir.oltean@nxp.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Some QE GPIO pins have an associated interrupt line in the QE PIC to
signal state changes on the pin.
Because the GPIO controller does not perform any interrupt handling
itself, a nexus node (interrupt-map) is used to map each GPIO line
supporting IRQ to the parent QE PIC interrupt domain.
Add the to_irq() method in the corresponding GPIO controller driver,
that uses the nexus node to perform the translation.
Signed-off-by: Paul Louvel <paul.louvel@bootlin.com>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Link: https://lore.kernel.org/r/20260708-qe-pic-gpios-v2-10-1972044cfbd1@bootlin.com
[chleroy: Added dependency on !SPARC to fix build on sparc reported by 0-day kernel robot]
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Rename the local variable holding the platform IRQ to parent_irq, which
better describes its role as the upstream/chained interrupt in the
hierarchy.
Signed-off-by: Paul Louvel <paul.louvel@bootlin.com>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Link: https://lore.kernel.org/r/20260708-qe-pic-gpios-v2-9-1972044cfbd1@bootlin.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
The generic IRQ chip framework is available to handle IRQ chips. Using
this framework for the QE interrupt controller allows to simplify the
driver. Indeed, the framework internally handles operations coded
directly in the driver.
Signed-off-by: Paul Louvel <paul.louvel@bootlin.com>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Link: https://lore.kernel.org/r/20260708-qe-pic-gpios-v2-8-1972044cfbd1@bootlin.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
When no interrupt bits are set in the event register, call
handle_bad_irq() to account for the spurious interrupt before
exiting the cascade handler.
Signed-off-by: Paul Louvel <paul.louvel@bootlin.com>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Link: https://lore.kernel.org/r/20260708-qe-pic-gpios-v2-7-1972044cfbd1@bootlin.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Instead of only servicing a single interrupt, the chained handler can
handle all IRQs that have their bit set in the event register.
This avoid multiple parent IRQ handler being serviced if more than one
interrupt are pending on the QE PIC.
Remove unused code.
Signed-off-by: Paul Louvel <paul.louvel@bootlin.com>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Link: https://lore.kernel.org/r/20260708-qe-pic-gpios-v2-6-1972044cfbd1@bootlin.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Replace the irq_find_mapping() + generic_handle_irq() pattern with
generic_handle_domain_irq(), which handles the IRQ domain lookup
internally. This is less error-prone and more idiomatic.
Remove the now-unused irq_find_mapping() call from qepic_get_irq().
Signed-off-by: Paul Louvel <paul.louvel@bootlin.com>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Link: https://lore.kernel.org/r/20260708-qe-pic-gpios-v2-5-1972044cfbd1@bootlin.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Wrap the cascade handler body with chained_irq_{enter,exit}() to
properly inform the parent IRQ chip that a chained interrupt is being
serviced.
Fixes: f0bcd784e1 ("soc: fsl: qe: Add an interrupt controller for QUICC Engine Ports")
Signed-off-by: Paul Louvel <paul.louvel@bootlin.com>
Cc: stable@kernel.org
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Link: https://lore.kernel.org/r/20260708-qe-pic-gpios-v2-1-1972044cfbd1@bootlin.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Before commit 156460811d ("soc: fsl: qe: Change GPIO driver to a
proper platform driver") qe_add_gpiochips() was walking the device
tree to find all nodes with compatible "fsl,mpc8323-qe-pario-bank".
After that commit the discovery is handled by the platform core,
therefore it is necessary to call of_platform_default_populate() on
the par_io node.
Fixes: 156460811d ("soc: fsl: qe: Change GPIO driver to a proper platform driver")
Reviewed-by: Herve Codina <herve.codina@bootlin.com>
Link: https://lore.kernel.org/r/a1db12ef75bf881dd5fba893a37db0c8517eca1b.1785414349.git.chleroy@kernel.org
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Commit 7aa1aa6ece ("QE: Move QE from arch/powerpc to drivers/soc")
moved QE into drivers/soc including gpio.c but left CONFIG_QE_GPIO
in powerpc's Kconfig.
Move it to SoC as well as it is the only place it is used:
drivers/soc/fsl/qe/Makefile:obj-$(CONFIG_QE_GPIO) += gpio.o qe_ports_ic.o
include/soc/fsl/qe/qe.h:#ifdef CONFIG_QE_GPIO
include/soc/fsl/qe/qe.h:#endif /* CONFIG_QE_GPIO */
There is also a dependency in USB subsystem for CONFIG_USB_FHCI_HCD:
drivers/usb/host/Kconfig: depends on QE_GPIO && QUICC_ENGINE
Because that USB driver selects CONFIG_FSL_GTM which is specific to
powerpc, it has to depend on CONFIG_PPC.
Acked-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://lore.kernel.org/r/9a7131d15a94e2017877e628f0e97f9aa2e0aae9.1785140877.git.chleroy@kernel.org
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Replace the #include of <linux/mod_devicetable.h> by the more specific
<linux/device-id/*.h> where applicable. For most cases the include
can be dropped completely, only a few drivers need one or two headers
added.
Acked-by: Danilo Krummrich <dakr@kernel.org>
Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/1a3f2007c5c5dcf555c09a4035ce3ae8ef1b6c49.1782808461.git.u.kleine-koenig@baylibre.com
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Freescale QUICC Engine:
- Add missing cleanup on device removal and switch to irq_domain_create_linear()
in interrupt controller for IO Ports
- Panic on ioremap() failure in qe_reset()
Freescale Management Complex:
- Move fsl-mc over to device MSI infrastructure
- Wait for the MC firmware to complete its boot
Freescale Hypervisor:
- Fix header kernel-doc warnings
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Merge tag 'soc_fsl-7.1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/chleroy/linux into soc/drivers
FSL SOC Changes for 7.1
Freescale QUICC Engine:
- Add missing cleanup on device removal and switch to irq_domain_create_linear()
in interrupt controller for IO Ports
- Panic on ioremap() failure in qe_reset()
Freescale Management Complex:
- Move fsl-mc over to device MSI infrastructure
- Wait for the MC firmware to complete its boot
Freescale Hypervisor:
- Fix header kernel-doc warnings
* tag 'soc_fsl-7.1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/chleroy/linux:
bus: fsl-mc: wait for the MC firmware to complete its boot
soc: fsl: qe: panic on ioremap() failure in qe_reset()
soc: fsl: qe_ports_ic: switch to irq_domain_create_linear()
soc: fsl: qe_ports_ic: Add missing cleanup on device removal
virt: fsl_hypervisor: fix header kernel-doc warnings
platform-msi: Remove stale comment
fsl-mc: Remove legacy MSI implementation
fsl-mc: Switch over to per-device platform MSI
irqchip/gic-v3-its: Add fsl_mc device plumbing to the msi-parent handling
fsl-mc: Add minimal infrastructure to use platform MSI
fsl-mc: Remove MSI domain propagation to sub-devices
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
When ioremap() fails in qe_reset(), the global pointer qe_immr remains
NULL, leading to a subsequent NULL pointer dereference when the pointer
is accessed. Since this happens early in the boot process, a failure to
map a few bytes of I/O memory indicates a fatal error from which the
system cannot recover.
Follow the same pattern as qe_sdma_init() and panic immediately when
ioremap() fails. This avoids a silent NULL pointer dereference later
and makes the error explicit.
Fixes: 9865853851 ("[POWERPC] Add QUICC Engine (QE) infrastructure")
Cc: stable@vger.kernel.org
Signed-off-by: Wang Jun <1742789905@qq.com>
Link: https://lore.kernel.org/r/tencent_FED49CF5331CC0C7910618883332A08E2606@qq.com
[chleroy: Rearranged change to reduce churn]
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
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Merge tag 'v7.0-rc5' into driver-core-next
We need the driver-core fixes in here as well to build on top of.
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Add a devm action handler to properly clean up the irq_domain and
chained handler when the device is removed.
Fixes: f0bcd784e1 ("soc: fsl: qe: Add an interrupt controller for QUICC Engine Ports")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Link: https://lore.kernel.org/r/20260310-qe_ports_ic-v1-1-608293026561@gmail.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Don't access of_root directly as it reduces the build test coverage for
this driver with COMPILE_TEST=y and OF=n. Use existing helper functions
to retrieve the relevant information.
Suggested-by: Rob Herring <robh@kernel.org>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Acked-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260223-soc-of-root-v2-5-b45da45903c8@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix wrong variable used for error checking after devm_ioremap_resource()
call. The function checks qmc->scc_pram instead of qmc->dpram, which
could lead to incorrect error handling.
Fixes: eb680d5630 ("soc: fsl: cpm1: qmc: Add support for QUICC Engine (QE) implementation")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Acked-by: Herve Codina <herve.codina@bootlin.com>
Link: https://lore.kernel.org/r/20260209015904.871269-1-nichen@iscas.ac.cn
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
When QMAN_FQ_FLAG_DYNAMIC_FQID is set, there's a race condition between
fq_table[fq->idx] state and freeing/allocating from the pool and
WARN_ON(fq_table[fq->idx]) in qman_create_fq() gets triggered.
Indeed, we can have:
Thread A Thread B
qman_destroy_fq() qman_create_fq()
qman_release_fqid()
qman_shutdown_fq()
gen_pool_free()
-- At this point, the fqid is available again --
qman_alloc_fqid()
-- so, we can get the just-freed fqid in thread B --
fq->fqid = fqid;
fq->idx = fqid * 2;
WARN_ON(fq_table[fq->idx]);
fq_table[fq->idx] = fq;
fq_table[fq->idx] = NULL;
And adding some logs between qman_release_fqid() and
fq_table[fq->idx] = NULL makes the WARN_ON() trigger a lot more.
To prevent that, ensure that fq_table[fq->idx] is set to NULL before
gen_pool_free() is called by using smp_wmb().
Fixes: c535e923bb ("soc/fsl: Introduce DPAA 1.x QMan device driver")
Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Tested-by: CHAMPSEIX Thomas <thomas.champseix@alstomgroup.com>
Link: https://lore.kernel.org/r/20251223072549.397625-1-richard.genoud@bootlin.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:
Single allocations: kmalloc(sizeof(TYPE), ...)
are replaced with: kmalloc_obj(TYPE, ...)
Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with: kmalloc_objs(TYPE, COUNT, ...)
Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...)
(where TYPE may also be *VAR)
The resulting allocations no longer return "void *", instead returning
"TYPE *".
Signed-off-by: Kees Cook <kees@kernel.org>
The driver currently sets the handler data and the chained handler in
two separate steps. This creates a theoretical race window where an
interrupt could fire after the handler is set but before the data is
assigned, leading to a NULL pointer dereference.
Replace the two calls with irq_set_chained_handler_and_data() to set
both the handler and its data atomically under the irq_desc->lock.
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Link: https://lore.kernel.org/r/20260119055715.889001-1-nichen@iscas.ac.cn
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
The QUICC Engine provides interrupts for a few I/O ports. This is
handled via a separate interrupt ID and managed via a triplet of
dedicated registers hosted by the SoC.
Implement an interrupt driver for it so that those IRQs can then
be linked to the related GPIOs.
Link: https://lore.kernel.org/r/63f19db21a91729d91b3df336a56a7eb4206e561.1767804922.git.chleroy@kernel.org
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Use scoped for-each loop when iterating over device nodes to make code a
bit simpler.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Acked-by: Herve Codina <herve.codina@bootlin.com>
Link: https://lore.kernel.org/r/20260102124754.64122-2-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Replace kmalloc() with kmalloc_array() to prevent potential
overflow, as recommended in Documentation/process/deprecated.rst.
Signed-off-by: Gongwei Li <ligongwei@kylinos.cn>
Reviewed-by: Fushuai Wang <wangfushuai@baidu.com>
Link: https://lore.kernel.org/r/20251121061022.114609-1-13875017792@163.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Currently if a user enqueues a work item using schedule_delayed_work() the
used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use
WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to
schedule_work() that is using system_wq and queue_work(), that makes use
again of WORK_CPU_UNBOUND.
This lack of consistency cannot be addressed without refactoring the API.
alloc_workqueue() treats all queues as per-CPU by default, while unbound
workqueues must opt-in via WQ_UNBOUND.
This default is suboptimal: most workloads benefit from unbound queues,
allowing the scheduler to place worker threads where they’re needed and
reducing noise when CPUs are isolated.
This continues the effort to refactor workqueue APIs, which began with
the introduction of new workqueues and a new alloc_workqueue flag in:
commit 128ea9f6cc ("workqueue: Add system_percpu_wq and system_dfl_wq")
commit 930c2ea566 ("workqueue: Add new WQ_PERCPU flag")
This change adds a new WQ_PERCPU flag to explicitly request
alloc_workqueue() to be per-cpu when WQ_UNBOUND has not been specified.
With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
must now use WQ_PERCPU.
Once migration is complete, WQ_UNBOUND can be removed and unbound will
become the implicit default.
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Link: https://lore.kernel.org/r/20251107152950.293899-1-marco.crivellari@suse.com
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
It's been relatively calm in this cycle from the feature POV, but
there were lots of cleanup works in the wide-range of code for
converting with the auto-cleanup macros like guard().
The mostly user-visible changes are the support of a couple of new
compress-offload API extensions, and the support of new ASoC codec /
platform drivers as well as USB-audio quirks.
Here we go with some highlights:
Core:
- Compress-offload API extension for 64bit timestamp support
- Compress-offload API extension for OPUS codec support
- Workaround for PCM locking issue with PREEMPT_RT and softirq
- KCSAN warning fix for ALSA sequencer core
ASoC:
- Continued cleanup works for ASoC core APIs
- Lots of cleanups and conversions of DT bindings
- Substantial maintainance work on the Intel AVS drivers
- Support for Qualcomm Glymur and PM4125, Realtek RT1321, Shanghai
FourSemi FS2104/5S, Texas Instruments PCM1754 and TAS2783A
- Remove support for TI WL1273 for old Nokia systems
USB-audio:
- Support for Tascam US-144mkII, Presonus S1824c support
- More flexible quirk option handling
- Fix for USB MIDI timer bug triggered by fuzzer
Others:
- A large series of cleanups with guard() & co macros over (non-ASoC)
sound drivers (PCI, ISA, HD-audio, USB-audio, drivers, etc)
- TAS5825 HD-audio side-codec support
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Merge tag 'sound-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"It's been relatively calm in this cycle from the feature POV, but
there were lots of cleanup works in the wide-range of code for
converting with the auto-cleanup macros like guard().
The mostly user-visible changes are the support of a couple of new
compress-offload API extensions, and the support of new ASoC codec /
platform drivers as well as USB-audio quirks.
Here we go with some highlights:
Core:
- Compress-offload API extension for 64bit timestamp support
- Compress-offload API extension for OPUS codec support
- Workaround for PCM locking issue with PREEMPT_RT and softirq
- KCSAN warning fix for ALSA sequencer core
ASoC:
- Continued cleanup works for ASoC core APIs
- Lots of cleanups and conversions of DT bindings
- Substantial maintainance work on the Intel AVS drivers
- Support for Qualcomm Glymur and PM4125, Realtek RT1321, Shanghai
FourSemi FS2104/5S, Texas Instruments PCM1754 and TAS2783A
- Remove support for TI WL1273 for old Nokia systems
USB-audio:
- Support for Tascam US-144mkII, Presonus S1824c support
- More flexible quirk option handling
- Fix for USB MIDI timer bug triggered by fuzzer
Others:
- A large series of cleanups with guard() & co macros over (non-ASoC)
sound drivers (PCI, ISA, HD-audio, USB-audio, drivers, etc)
- TAS5825 HD-audio side-codec support"
* tag 'sound-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (454 commits)
ALSA: usb-audio: don't hardcode gain for output channel of Presonus Studio
ALSA: usb-audio: add the initial mix for Presonus Studio 1824c
ALSA: doc: improved docs about quirk_flags in snd-usb-audio
ALSA: usb-audio: make param quirk_flags change-able in runtime
ALSA: usb-audio: improve module param quirk_flags
ALSA: usb-audio: add two-way convert between name and bit for QUIRK_FLAG_*
ALSA: usb-audio: fix race condition to UAF in snd_usbmidi_free
ALSA: usb-audio: add mono main switch to Presonus S1824c
ALSA: compress: document 'chan_map' member in snd_dec_opus
ASoC: cs35l56: Add support for CS35L56 B2 silicon
ASoC: cs35l56: Set fw_regs table after getting REVID
ALSA: hda/realtek: Add quirk for HP Spectre 14t-ea100
ASoc: tas2783A: Fix an error code in probe()
ASoC: tlv320aic3x: Fix class-D initialization for tlv320aic3007
ASoC: qcom: sc8280xp: use sa8775p/ subdir for QCS9100 / QCS9075
ASoC: stm32: sai: manage context in set_sysclk callback
ASoC: renesas: msiof: ignore 1st FSERR
ASoC: renesas: msiof: Add note for The possibility of R/L opposite Capture
ASoC: renesas: msiof: setup both (Playback/Capture) in the same time
ASoC: renesas: msiof: tidyup DMAC stop timing
...
Replace the opencoded for_each_cpu(cpu, cpu_online_mask) loop with the
more readable and equivalent for_each_online_cpu(cpu) macro.
Signed-off-by: Fushuai Wang <wangfushuai@baidu.com>
Link: https://lore.kernel.org/r/20250811065216.3320-1-wangfushuai@baidu.com
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Remove legacy-of-mm-gpiochip.h header file. The above mentioned
file provides an OF API that's deprecated. There is no agnostic
alternatives to it and we have to open code the logic which was
hidden behind of_mm_gpiochip_add_data(). Note, most of the GPIO
drivers are using their own labeling schemas and resource retrieval
that only a few may gain of the code deduplication, so whenever
alternative is appear we can move drivers again to use that one.
As a side effect this change fixes a potential memory leak on
an error path, if of_mm_gpiochip_add_data() fails.
[Text copied from commit 34064c8267 ("powerpc/8xx: Drop
legacy-of-mm-gpiochip.h header")]
Suggested-by: Bartosz Golaszewski <brgl@bgdev.pl>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/e8a5d2c5b72233bd36da7fecc0a551ca54d39478.1758212309.git.christophe.leroy@csgroup.eu
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
In order to be able to add interrupts to the GPIOs, first change the
QE GPIO driver to the proper platform driver in order to allow
initialisation to be done in the right order, otherwise the GPIOs
get added before the interrupts are registered.
Remove linux/of.h and linux/property.h which are unused.
And to improve readability and reduce risk of errors, add a macro to
transform a pin number into the mask that matches the associated bit
in registers.
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/b0b4480255569c7f0dfe58854a444f9a40da6681.1758212309.git.christophe.leroy@csgroup.eu
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
When no post-completion processing is expected, don't waste time
handling useless interrupts.
Only set QMC_BD_[R/T]X_I when a completion function is passed in,
and perform seamless completion on submit for interruptless buffers.
Acked-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://patch.msgid.link/40b41b53a26e77a50b3a5f68fcecc6f9a40a84b4.1758209158.git.christophe.leroy@csgroup.eu
Signed-off-by: Mark Brown <broonie@kernel.org>
The conversion of all GPIO drivers to using the .set_rv() and
.set_multiple_rv() callbacks from struct gpio_chip (which - unlike their
predecessors - return an integer and allow the controller drivers to
indicate failures to users) is now complete and the legacy ones have
been removed. Rename the new callbacks back to their original names in
one sweeping change.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
The conversion to using the new GPIO line setter callbacks missed the
set_multiple() in this file. Convert it to using the new callback.
Fixes: 52ccf19527 ("soc: fsl: qe: use new GPIO line value setter callbacks")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
irq_domain_create_simple() takes fwnode as the first argument. It can be
extracted from the struct device using dev_fwnode() helper instead of
using of_node with of_fwnode_handle().
So use the dev_fwnode() helper.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Qiang Zhao <qiang.zhao@nxp.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linuxppc-dev@lists.ozlabs.org
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/linuxppc-dev/20250611104348.192092-19-jirislaby@kernel.org/
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20250610-gpiochip-set-rv-soc-v1-1-1a0c36c9deed@linaro.org
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Updates are across the usual driver subsystems with SoC specific drivers:
- added soc specicific drivers for sophgo cv1800 and sg2044, qualcomm
sm8750, and amlogic c3 and s4 chips.
- cache controller updates for sifive chips, plus binding changes for
other cache descriptions.
- memory controller drivers for mediatek mt6893, stm32 and cleanups for a
few more drivers
- reset controller drivers for T-Head TH1502, Sophgo sg2044 and
Renesas RZ/V2H(P)
- SCMI firmware updates to better deal with buggy firmware, plus better
support for Qualcomm X1E and NXP i.MX specific interfaces
- a new platform driver for the crypto firmware on Cznic Turris Omnia/MOX
- cleanups for the TEE firmware subsystem and amdtee driver
- minor updates and fixes for freescale/nxp, qualcomm, google, aspeed,
wondermedia, ti, nxp, renesas, hisilicon, mediatek, broadcom and samsung
SoCs
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Merge tag 'soc-drivers-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
"Updates are across the usual driver subsystems with SoC specific
drivers:
- added soc specicific drivers for sophgo cv1800 and sg2044, qualcomm
sm8750, and amlogic c3 and s4 chips.
- cache controller updates for sifive chips, plus binding changes for
other cache descriptions.
- memory controller drivers for mediatek mt6893, stm32 and cleanups
for a few more drivers
- reset controller drivers for T-Head TH1502, Sophgo sg2044 and
Renesas RZ/V2H(P)
- SCMI firmware updates to better deal with buggy firmware, plus
better support for Qualcomm X1E and NXP i.MX specific interfaces
- a new platform driver for the crypto firmware on Cznic Turris
Omnia/MOX
- cleanups for the TEE firmware subsystem and amdtee driver
- minor updates and fixes for freescale/nxp, qualcomm, google,
aspeed, wondermedia, ti, nxp, renesas, hisilicon, mediatek,
broadcom and samsung SoCs"
* tag 'soc-drivers-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (133 commits)
soc: aspeed: Add NULL check in aspeed_lpc_enable_snoop()
soc: aspeed: lpc: Fix impossible judgment condition
ARM: aspeed: Don't select SRAM
docs: firmware: qcom_scm: Fix kernel-doc warning
soc: fsl: qe: Consolidate chained IRQ handler install/remove
firmware: qcom: scm: Allow QSEECOM for HP EliteBook Ultra G1q
dt-bindings: mfd: qcom,tcsr: Add compatible for ipq5018
dt-bindings: cache: add QiLai compatible to ax45mp
memory: stm32_omm: Fix error handling in stm32_omm_disable_child()
dt-bindings: cache: Convert marvell,tauros2-cache to DT schema
dt-bindings: cache: Convert marvell,{feroceon,kirkwood}-cache to DT schema
soc: samsung: exynos-pmu: enable CPU hotplug support for gs101
MAINTAINERS: Add google,gs101-pmu-intr-gen.yaml binding file
dt-bindings: soc: samsung: exynos-pmu: gs101: add google,pmu-intr-gen phandle
dt-bindings: soc: google: Add gs101-pmu-intr-gen binding documentation
bus: fsl-mc: Use strscpy() instead of strscpy_pad()
soc: fsl: qbman: Remove const from portal->cgrs allocation type
bus: fsl_mc: Fix driver_managed_dma check
bus: fsl-mc: increase MC_CMD_COMPLETION_TIMEOUT_MS value
bus: fsl-mc: drop useless cleanup
...
- Various fixes and cleanups from Ioana on fsl-mc bus driver
- Other misc fixes on fsl-mc bus driver
- A build fix on DPAA2 driver
- Some preparation work from Kees on qbman driver
- Some cleanup on FSL qe interrupt driver init
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Merge tag 'soc_fsl-6.16-1' of https://github.com/chleroy/linux into soc/drivers
FSL SOC Changes for 6.16:
- Various fixes and cleanups from Ioana on fsl-mc bus driver
- Other misc fixes on fsl-mc bus driver
- A build fix on DPAA2 driver
- Some preparation work from Kees on qbman driver
- Some cleanup on FSL qe interrupt driver init
* tag 'soc_fsl-6.16-1' of https://github.com/chleroy/linux:
soc: fsl: qe: Consolidate chained IRQ handler install/remove
bus: fsl-mc: Use strscpy() instead of strscpy_pad()
soc: fsl: qbman: Remove const from portal->cgrs allocation type
bus: fsl_mc: Fix driver_managed_dma check
bus: fsl-mc: increase MC_CMD_COMPLETION_TIMEOUT_MS value
bus: fsl-mc: drop useless cleanup
bus: fsl-mc: add the dprc_get_mem() command to the whitelist
bus: fsl-mc: fix GET/SET_TAILDROP command ids
bus: fsl-mc: do not add a device-link for the UAPI used DPMCP device
bus: fsl-mc: fix double-free on mc_dev
soc: fsl: Do not enable DPAA2_CONSOLE by default during compile testing
Link: https://lore.kernel.org/r/9e5b3e8e-3280-4ff9-915b-9a8b934bac22@csgroup.eu
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Chained irq handlers usually set up handler data as well.
irq_set_chained_handler_and_data() can set both under irq_desc->lock.
Replace the two calls with one.
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Link: https://lore.kernel.org/r/20250515083919.3811473-1-nichen@iscas.ac.cn
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
irq_domain_add_*() interfaces are going away as being obsolete now.
Switch to the preferred irq_domain_create_*() ones. Those differ in the
node parameter: They take more generic struct fwnode_handle instead of
struct device_node. Therefore, of_fwnode_handle() is added around the
original parameter.
Note some of the users can likely use dev->fwnode directly instead of
indirect of_fwnode_handle(dev->of_node). But dev->fwnode is not
guaranteed to be set for all, so this has to be investigated on case to
case basis (by people who can actually test with the HW).
[ tglx: Fix up subject prefix ]
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Christophe Leroy <christophe.leroy@csgroup.eu> # For soc/fsl
Link: https://lore.kernel.org/all/20250319092951.37667-35-jirislaby@kernel.org
