Now that the driver core allows for struct class to be in read-only
memory, move the fpga_region_class structure to be declared at build
time placing it into read-only memory, instead of having to be
dynamically allocated at boot time.
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230811073043.52808-3-ivan.orlov0322@gmail.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Now that the driver core allows for struct class to be in read-only
memory, move the fpga_mgr_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230811073043.52808-2-ivan.orlov0322@gmail.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Now that the driver core allows for struct class to be in read-only
memory, move the fpga_bridge_class structure to be declared at build
time placing it into read-only memory, instead of having to be
dynamically allocated at boot time.
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230811073043.52808-1-ivan.orlov0322@gmail.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
PCI core add pci_find_vsec_capability() to query VSEC. We can use that
core API to simplify the code.
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230802080726.178194-1-wangxiongfeng2@huawei.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Add configuration for the KUnit test suites for the core components
of the FPGA subsystem.
Signed-off-by: Marco Pagani <marpagan@redhat.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230718130304.87048-5-marpagan@redhat.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
The suite tests the basic behaviors of the FPGA Region including
the programming and the function for finding a specific region.
Signed-off-by: Marco Pagani <marpagan@redhat.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230718130304.87048-4-marpagan@redhat.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
The suite tests the basic behaviors of the FPGA Bridge including
the functions that operate on a list of bridges.
Signed-off-by: Marco Pagani <marpagan@redhat.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230718130304.87048-3-marpagan@redhat.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
The suite tests the basic behaviors of the FPGA Manager including
programming using a single contiguous buffer and a scatter gather table.
Signed-off-by: Marco Pagani <marpagan@redhat.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230718130304.87048-2-marpagan@redhat.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230714174449.4055156-1-robh@kernel.org
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Fix the following warnings issued by the kernel-doc script:
drivers/fpga/fpga-bridge.c:99: warning: No description found for return value of 'of_fpga_bridge_get'
drivers/fpga/fpga-bridge.c:163: warning: No description found for return value of 'fpga_bridges_enable'
drivers/fpga/fpga-bridge.c:187: warning: No description found for return value of 'fpga_bridges_disable'
drivers/fpga/fpga-bridge.c:238: warning: No description found for return value of 'of_fpga_bridge_get_to_list'
drivers/fpga/fpga-bridge.c:268: warning: No description found for return value of 'fpga_bridge_get_to_list'
- Extend the return description of of_fpga_bridge_get() to include the
case when try_module_get() fails.
Signed-off-by: Marco Pagani <marpagan@redhat.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230706142755.124879-3-marpagan@redhat.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
- Fix the following warnings issued by the kernel-doc script:
drivers/fpga/fpga-region.c:46: warning: No description found for return value of 'fpga_region_get'
drivers/fpga/fpga-region.c:97: warning: No description found for return value of 'fpga_region_program_fpga'
drivers/fpga/fpga-region.c:295: warning: No description found for return value of 'fpga_region_init'
- Remove the "and registers a reconfig notifier" part from the description
of fpga_region_init() since it does not register an of_overlay notifier
anymore.
- Remove the outdated "if @np is not an FPGA Region" case from the return
description of fpga_region_get() and replace it with the case when
try_module_get() fails.
Signed-off-by: Marco Pagani <marpagan@redhat.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230706142755.124879-2-marpagan@redhat.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Substitute SI prefixes MILLI for temperature and MICRO for power, which
are exported via the hwmon sysfs interface in m°C and ųW, respectively.
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Peter Colberg <peter.colberg@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230705033548.10737-1-peter.colberg@intel.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Here is the big set of char/misc and other driver subsystem updates for
6.5-rc1.
Lots of different, tiny, stuff in here, from a range of smaller driver
subsystems, including pulls from some substems directly:
- IIO driver updates and additions
- W1 driver updates and fixes (and a new maintainer!)
- FPGA driver updates and fixes
- Counter driver updates
- Extcon driver updates
- Interconnect driver updates
- Coresight driver updates
- mfd tree tag merge needed for other updates
on top of that, lots of small driver updates as patches, including:
- static const updates for class structures
- nvmem driver updates
- pcmcia driver fix
- lots of other small driver updates and fixes
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull Char/Misc updates from Greg KH:
"Here is the big set of char/misc and other driver subsystem updates
for 6.5-rc1.
Lots of different, tiny, stuff in here, from a range of smaller driver
subsystems, including pulls from some substems directly:
- IIO driver updates and additions
- W1 driver updates and fixes (and a new maintainer!)
- FPGA driver updates and fixes
- Counter driver updates
- Extcon driver updates
- Interconnect driver updates
- Coresight driver updates
- mfd tree tag merge needed for other updates on top of that, lots of
small driver updates as patches, including:
- static const updates for class structures
- nvmem driver updates
- pcmcia driver fix
- lots of other small driver updates and fixes
All of these have been in linux-next for a while with no reported
problems"
* tag 'char-misc-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (243 commits)
bsr: fix build problem with bsr_class static cleanup
comedi: make all 'class' structures const
char: xillybus: make xillybus_class a static const structure
xilinx_hwicap: make icap_class a static const structure
virtio_console: make port class a static const structure
ppdev: make ppdev_class a static const structure
char: misc: make misc_class a static const structure
/dev/mem: make mem_class a static const structure
char: lp: make lp_class a static const structure
dsp56k: make dsp56k_class a static const structure
bsr: make bsr_class a static const structure
oradax: make 'cl' a static const structure
hwtracing: hisi_ptt: Fix potential sleep in atomic context
hwtracing: hisi_ptt: Advertise PERF_PMU_CAP_NO_EXCLUDE for PTT PMU
hwtracing: hisi_ptt: Export available filters through sysfs
hwtracing: hisi_ptt: Add support for dynamically updating the filter list
hwtracing: hisi_ptt: Factor out filter allocation and release operation
samples: pfsm: add CC_CAN_LINK dependency
misc: fastrpc: check return value of devm_kasprintf()
coresight: dummy: Update type of mode parameter in dummy_{sink,source}_enable()
...
On some MAX 10 cards, the BMC firmware is not available to service
handshake registers during secure update erase and write phases at
normal speeds. This problem affects at least hwmon driver. When the MAX
10 hwmon driver tries to read the sensor values during a secure update,
the reads are slowed down (e.g., reading all D5005 sensors takes ~24s
which is magnitudes worse than the normal <0.02s).
Manage access to the handshake registers using a rw semaphore and a FW
state variable to prevent accesses during those secure update phases
and return -EBUSY instead.
If handshake_sys_reg_nranges == 0, don't update bwcfw_state as it is not
used. This avoids the locking cost.
Co-developed-by: Russ Weight <russell.h.weight@intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Co-developed-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230417092653.16487-5-ilpo.jarvinen@linux.intel.com
Wrap regmap_update_bits() with m10bmc_sys_update_bits() in order to be
able to add additional checks into it.
Co-developed-by: Russ Weight <russell.h.weight@intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230417092653.16487-3-ilpo.jarvinen@linux.intel.com
The Zynq platform has PCAP, ICAP and JTAG interfaces for configuring
programmable logic (PL). The existing driver implementation uses the
PCAP interface to configure the PL. Before switching the PL configuration
interface from PCAP to ICAP make sure that all outstanding Transactions
relevant to the PL configuration should be completed by the PCAP interface
otherwise it may lead to PL configuration issues.
This patch provides a required fix to ensure that all existing PL
transactions are completed before switching from PCAP to ICAP.
For detailed information relevant to PL configuration interfaces refer
Zynq 7000 TRM (section 6.5.1).
Link: https://docs.xilinx.com/v/u/en-US/ug585-Zynq-7000-TRM
Signed-off-by: Alfonso Rodriguez <alfonso.rodriguezm@upm.es>
Signed-off-by: Nava kishore Manne <nava.kishore.manne@amd.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230605115433.186087-1-nava.kishore.manne@amd.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Statically allocated array of pointers to hwmon_channel_info can be made
const for safety.
Reviewed-by: Russ Weight <russell.h.weight@intel.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230511175449.282069-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Here is the "big" set of char/misc and other driver subsystems for
6.4-rc1.
It's pretty big, but due to the removal of pcmcia drivers, almost breaks
even for number of lines added vs. removed, a nice change.
Included in here are:
- removal of unused PCMCIA drivers (finally!)
- Interconnect driver updates and additions
- Lots of IIO driver updates and additions
- MHI driver updates
- Coresight driver updates
- NVMEM driver updates, which required some OF updates
- W1 driver updates and a new maintainer to manage the subsystem
- FPGA driver updates
- New driver subsystem, CDX, for AMD systems
- lots of other small driver updates and additions
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 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc drivers updates from Greg KH:
"Here is the "big" set of char/misc and other driver subsystems for
6.4-rc1.
It's pretty big, but due to the removal of pcmcia drivers, almost
breaks even for number of lines added vs. removed, a nice change.
Included in here are:
- removal of unused PCMCIA drivers (finally!)
- Interconnect driver updates and additions
- Lots of IIO driver updates and additions
- MHI driver updates
- Coresight driver updates
- NVMEM driver updates, which required some OF updates
- W1 driver updates and a new maintainer to manage the subsystem
- FPGA driver updates
- New driver subsystem, CDX, for AMD systems
- lots of other small driver updates and additions
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (196 commits)
mcb-lpc: Reallocate memory region to avoid memory overlapping
mcb-pci: Reallocate memory region to avoid memory overlapping
mcb: Return actual parsed size when reading chameleon table
kernel/configs: Drop Android config fragments
virt: acrn: Replace obsolete memalign() with posix_memalign()
spmi: Add a check for remove callback when removing a SPMI driver
spmi: fix W=1 kernel-doc warnings
spmi: mtk-pmif: Drop of_match_ptr for ID table
spmi: pmic-arb: Convert to platform remove callback returning void
spmi: mtk-pmif: Convert to platform remove callback returning void
spmi: hisi-spmi-controller: Convert to platform remove callback returning void
w1: gpio: remove unnecessary ENOMEM messages
w1: omap-hdq: remove unnecessary ENOMEM messages
w1: omap-hdq: add SPDX tag
w1: omap-hdq: allow compile testing
w1: matrox: remove unnecessary ENOMEM messages
w1: matrox: use inline over __inline__
w1: matrox: switch from asm to linux header
w1: ds2482: do not use assignment in if condition
w1: ds2482: drop unnecessary header
...
Here is the large set of driver core changes for 6.4-rc1.
Once again, a busy development cycle, with lots of changes happening in
the driver core in the quest to be able to move "struct bus" and "struct
class" into read-only memory, a task now complete with these changes.
This will make the future rust interactions with the driver core more
"provably correct" as well as providing more obvious lifetime rules for
all busses and classes in the kernel.
The changes required for this did touch many individual classes and
busses as many callbacks were changed to take const * parameters
instead. All of these changes have been submitted to the various
subsystem maintainers, giving them plenty of time to review, and most of
them actually did so.
Other than those changes, included in here are a small set of other
things:
- kobject logging improvements
- cacheinfo improvements and updates
- obligatory fw_devlink updates and fixes
- documentation updates
- device property cleanups and const * changes
- firwmare loader dependency fixes.
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the large set of driver core changes for 6.4-rc1.
Once again, a busy development cycle, with lots of changes happening
in the driver core in the quest to be able to move "struct bus" and
"struct class" into read-only memory, a task now complete with these
changes.
This will make the future rust interactions with the driver core more
"provably correct" as well as providing more obvious lifetime rules
for all busses and classes in the kernel.
The changes required for this did touch many individual classes and
busses as many callbacks were changed to take const * parameters
instead. All of these changes have been submitted to the various
subsystem maintainers, giving them plenty of time to review, and most
of them actually did so.
Other than those changes, included in here are a small set of other
things:
- kobject logging improvements
- cacheinfo improvements and updates
- obligatory fw_devlink updates and fixes
- documentation updates
- device property cleanups and const * changes
- firwmare loader dependency fixes.
All of these have been in linux-next for a while with no reported
problems"
* tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (120 commits)
device property: make device_property functions take const device *
driver core: update comments in device_rename()
driver core: Don't require dynamic_debug for initcall_debug probe timing
firmware_loader: rework crypto dependencies
firmware_loader: Strip off \n from customized path
zram: fix up permission for the hot_add sysfs file
cacheinfo: Add use_arch[|_cache]_info field/function
arch_topology: Remove early cacheinfo error message if -ENOENT
cacheinfo: Check cache properties are present in DT
cacheinfo: Check sib_leaf in cache_leaves_are_shared()
cacheinfo: Allow early level detection when DT/ACPI info is missing/broken
cacheinfo: Add arm64 early level initializer implementation
cacheinfo: Add arch specific early level initializer
tty: make tty_class a static const structure
driver core: class: remove struct class_interface * from callbacks
driver core: class: mark the struct class in struct class_interface constant
driver core: class: make class_register() take a const *
driver core: class: mark class_release() as taking a const *
driver core: remove incorrect comment for device_create*
MIPS: vpe-cmp: remove module owner pointer from struct class usage.
...
- Update the ACPICA code in the kernel to upstream revision 20230331
including the following changes:
* Delete bogus node_array array of pointers from AEST table (Jessica
Clarke).
* Add support for trace buffer extension in GICC to the ACPI MADT
parser (Xiongfeng Wang).
* Add missing macro ACPI_FUNCTION_TRACE() for acpi_ns_repair_HID()
(Xiongfeng Wang).
* Add missing tables to astable (Pedro Falcato).
* Add support for 64 bit loong_arch compilation to ACPICA (Huacai
Chen).
* Add support for ASPT table in disassembler to ACPICA (Jeremi
Piotrowski).
* Add support for Arm's MPAM ACPI table version 2 (Hesham Almatary).
* Update all copyrights/signons in ACPICA to 2023 (Bob Moore).
* Add support for ClockInput resource (v6.5) (Niyas Sait).
* Add RISC-V INTC interrupt controller definition to the list of
supported interrupt controllers for MADT (Sunil V L).
* Add structure definitions for the RISC-V RHCT ACPI table (Sunil V L).
* Address several cases in which the ACPICA code might lead to
undefined behavior (Tamir Duberstein).
* Make ACPICA code support flexible arrays properly (Kees Cook).
* Check null return of ACPI_ALLOCATE_ZEROED in
acpi_db_display_objects() (void0red).
* Add os specific support for Zephyr RTOS to ACPICA (Najumon).
* Update version to 20230331 (Bob Moore).
- Fix evaluating the _PDC ACPI control method when running as Xen
dom0 (Roger Pau Monne).
- Use platform devices to load ACPI PPC and PCC drivers (Petr Pavlu).
- Check for null return of devm_kzalloc() in fch_misc_setup() (Kang
Chen).
- Log a message if enable_irq_wake() fails for the ACPI SCI (Simon
Gaiser).
- Initialize the correct IOMMU fwspec while parsing ACPI VIOT
(Jean-Philippe Brucker).
- Amend indentation and prefix error messages with FW_BUG in the ACPI
SPCR parsing code (Andy Shevchenko).
- Enable ACPI sysfs support for CCEL records (Kuppuswamy
Sathyanarayanan).
- Make the APEI error injection code warn on invalid arguments when
explicitly indicated by platform (Shuai Xue).
- Add CXL error types to the error injection code in APEI (Tony Luck).
- Refactor acpi_data_prop_read_single() (Andy Shevchenko).
- Fix two issues in the ACPI SBS driver (Armin Wolf).
- Replace ternary operator with min_t() in the generic ACPI thermal
zone driver (Jiangshan Yi).
- Ensure that ACPI notify handlers are not running after removal and
clean up code in acpi_sb_notify() (Rafael Wysocki).
- Remove register_backlight_delay module option and code and remove
quirks for false-positive backlight control support advertised on
desktop boards (Hans de Goede).
- Replace irqdomain.h include with struct declarations in ACPI headers
and update several pieces of code previously including of.h
implicitly through those headers (Rob Herring).
- Fix acpi_evaluate_dsm_typed() redefinition error (Kiran K).
- Update the pm_profile sysfs attribute documentation (Rafael Wysocki).
- Add 80862289 ACPI _HID for second PWM controller on Cherry Trail to
the ACPI driver for Intel SoCs (Hans de Goede).
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Merge tag 'acpi-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to upstream revision
20230331, fix the ACPI SBS driver and the evaluation of the _PDC
method on Xen dom0 in the ACPI processor driver, update the ACPI
driver for Intel SoCs and clean up code in multiple places.
Specifics:
- Update the ACPICA code in the kernel to upstream revision 20230331
including the following changes:
* Delete bogus node_array array of pointers from AEST table
(Jessica Clarke)
* Add support for trace buffer extension in GICC to the ACPI MADT
parser (Xiongfeng Wang)
* Add missing macro ACPI_FUNCTION_TRACE() for
acpi_ns_repair_HID() (Xiongfeng Wang)
* Add missing tables to astable (Pedro Falcato)
* Add support for 64 bit loong_arch compilation to ACPICA (Huacai
Chen)
* Add support for ASPT table in disassembler to ACPICA (Jeremi
Piotrowski)
* Add support for Arm's MPAM ACPI table version 2 (Hesham
Almatary)
* Update all copyrights/signons in ACPICA to 2023 (Bob Moore)
* Add support for ClockInput resource (v6.5) (Niyas Sait)
* Add RISC-V INTC interrupt controller definition to the list of
supported interrupt controllers for MADT (Sunil V L)
* Add structure definitions for the RISC-V RHCT ACPI table (Sunil
V L)
* Address several cases in which the ACPICA code might lead to
undefined behavior (Tamir Duberstein)
* Make ACPICA code support flexible arrays properly (Kees Cook)
* Check null return of ACPI_ALLOCATE_ZEROED in
acpi_db_display_objects() (void0red)
* Add os specific support for Zephyr RTOS to ACPICA (Najumon)
* Update version to 20230331 (Bob Moore)
- Fix evaluating the _PDC ACPI control method when running as Xen
dom0 (Roger Pau Monne)
- Use platform devices to load ACPI PPC and PCC drivers (Petr Pavlu)
- Check for null return of devm_kzalloc() in fch_misc_setup() (Kang
Chen)
- Log a message if enable_irq_wake() fails for the ACPI SCI (Simon
Gaiser)
- Initialize the correct IOMMU fwspec while parsing ACPI VIOT
(Jean-Philippe Brucker)
- Amend indentation and prefix error messages with FW_BUG in the ACPI
SPCR parsing code (Andy Shevchenko)
- Enable ACPI sysfs support for CCEL records (Kuppuswamy
Sathyanarayanan)
- Make the APEI error injection code warn on invalid arguments when
explicitly indicated by platform (Shuai Xue)
- Add CXL error types to the error injection code in APEI (Tony Luck)
- Refactor acpi_data_prop_read_single() (Andy Shevchenko)
- Fix two issues in the ACPI SBS driver (Armin Wolf)
- Replace ternary operator with min_t() in the generic ACPI thermal
zone driver (Jiangshan Yi)
- Ensure that ACPI notify handlers are not running after removal and
clean up code in acpi_sb_notify() (Rafael Wysocki)
- Remove register_backlight_delay module option and code and remove
quirks for false-positive backlight control support advertised on
desktop boards (Hans de Goede)
- Replace irqdomain.h include with struct declarations in ACPI
headers and update several pieces of code previously including of.h
implicitly through those headers (Rob Herring)
- Fix acpi_evaluate_dsm_typed() redefinition error (Kiran K)
- Update the pm_profile sysfs attribute documentation (Rafael
Wysocki)
- Add 80862289 ACPI _HID for second PWM controller on Cherry Trail to
the ACPI driver for Intel SoCs (Hans de Goede)"
* tag 'acpi-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (64 commits)
ACPI: LPSS: Add 80862289 ACPI _HID for second PWM controller on Cherry Trail
ACPI: bus: Ensure that notify handlers are not running after removal
ACPI: bus: Add missing braces to acpi_sb_notify()
ACPI: video: Remove desktops without backlight DMI quirks
ACPI: video: Remove register_backlight_delay module option and code
ACPI: Replace irqdomain.h include with struct declarations
fpga: lattice-sysconfig-spi: Add explicit include for of.h
tpm: atmel: Add explicit include for of.h
virtio-mmio: Add explicit include for of.h
pata: ixp4xx: Add explicit include for of.h
ata: pata_macio: Add explicit include of irqdomain.h
serial: 8250_tegra: Add explicit include for of.h
net: rfkill-gpio: Add explicit include for of.h
staging: iio: resolver: ad2s1210: Add explicit include for of.h
iio: adc: ad7292: Add explicit include for of.h
ACPICA: Update version to 20230331
ACPICA: add os specific support for Zephyr RTOS
ACPICA: ACPICA: check null return of ACPI_ALLOCATE_ZEROED in acpi_db_display_objects
ACPICA: acpi_resource_irq: Replace 1-element arrays with flexible array
ACPICA: acpi_madt_oem_data: Fix flexible array member definition
...
With linux/acpi.h (in spi/spi.h) no longer implicitly including of.h,
add an explicit include of of.h to fix the following errors:
drivers/fpga/lattice-sysconfig-spi.c:146:35: error: implicit declaration of function 'of_match_ptr' [-Werror=implicit-function-declaration]
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The current code path can lead to warnings because of uninitialized device,
which contains, as a consequence, uninitialized kobject. The uninitialized
device is passed to of_platform_populate, which will at some point, while
creating child device, try to get a reference on uninitialized parent,
resulting in the following warning:
kobject: '(null)' ((ptrval)): is not initialized, yet kobject_get() is
being called.
The warning is observed after migrating a kernel 5.10.x to 6.1.x.
Reverting commit 0d70af3c25 ("fpga: bridge: Use standard dev_release for
class driver") seems to remove the warning.
This commit aggregates device_initialize() and device_add() into
device_register() but this new call is done AFTER of_platform_populate
Fixes: 0d70af3c25 ("fpga: bridge: Use standard dev_release for class driver")
Signed-off-by: Alexis Lothoré <alexis.lothore@bootlin.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230404133102.2837535-2-alexis.lothore@bootlin.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Driver has IO wrappers but xlnx_pr_decouple_read() is not used and readl is
used instead which is just wrong.
It is also generating sparse issue that xlnx_pr_decouple_read() is unused.
Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/0381e4e8061c2fee182a104768e84feff3a82d25.1679412800.git.michal.simek@amd.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
The module pointer in class_create() never actually did anything, and it
shouldn't have been requred to be set as a parameter even if it did
something. So just remove it and fix up all callers of the function in
the kernel tree at the same time.
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20230313181843.1207845-4-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pci_enable_pcie_error_reporting() enables the device to send ERR_*
Messages. Since f26e58bf6f ("PCI/AER: Enable error reporting when AER is
native"), the PCI core does this for all devices during enumeration, so the
driver doesn't need to do it itself.
Remove the redundant pci_enable_pcie_error_reporting() call from the
driver. Also remove the corresponding pci_disable_pcie_error_reporting()
from the driver .remove() path.
Note that this only controls ERR_* Messages from the device. An ERR_*
Message may cause the Root Port to generate an interrupt, depending on the
AER Root Error Command register managed by the AER service driver.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230307201937.880084-1-helgaas@kernel.org
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Adds status interface for zynqmp-fpga. It's a read only interface
which allows the user to get the Programmable Logic(PL) configuration
status.
Usage:
To read the Programmable Logic(PL) configuration status.
cat /sys/bus/platform/drivers/zynqmp_fpga_manager/firmware:zynqmp-firmware:pcap/status
Signed-off-by: Nava kishore Manne <nava.kishore.manne@amd.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230224120738.329416-3-nava.kishore.manne@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here is the large set of driver core changes for 6.3-rc1.
There's a lot of changes this development cycle, most of the work falls
into two different categories:
- fw_devlink fixes and updates. This has gone through numerous review
cycles and lots of review and testing by lots of different devices.
Hopefully all should be good now, and Saravana will be keeping a
watch for any potential regression on odd embedded systems.
- driver core changes to work to make struct bus_type able to be moved
into read-only memory (i.e. const) The recent work with Rust has
pointed out a number of areas in the driver core where we are
passing around and working with structures that really do not have
to be dynamic at all, and they should be able to be read-only making
things safer overall. This is the contuation of that work (started
last release with kobject changes) in moving struct bus_type to be
constant. We didn't quite make it for this release, but the
remaining patches will be finished up for the release after this
one, but the groundwork has been laid for this effort.
Other than that we have in here:
- debugfs memory leak fixes in some subsystems
- error path cleanups and fixes for some never-able-to-be-hit
codepaths.
- cacheinfo rework and fixes
- Other tiny fixes, full details are in the shortlog
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the large set of driver core changes for 6.3-rc1.
There's a lot of changes this development cycle, most of the work
falls into two different categories:
- fw_devlink fixes and updates. This has gone through numerous review
cycles and lots of review and testing by lots of different devices.
Hopefully all should be good now, and Saravana will be keeping a
watch for any potential regression on odd embedded systems.
- driver core changes to work to make struct bus_type able to be
moved into read-only memory (i.e. const) The recent work with Rust
has pointed out a number of areas in the driver core where we are
passing around and working with structures that really do not have
to be dynamic at all, and they should be able to be read-only
making things safer overall. This is the contuation of that work
(started last release with kobject changes) in moving struct
bus_type to be constant. We didn't quite make it for this release,
but the remaining patches will be finished up for the release after
this one, but the groundwork has been laid for this effort.
Other than that we have in here:
- debugfs memory leak fixes in some subsystems
- error path cleanups and fixes for some never-able-to-be-hit
codepaths.
- cacheinfo rework and fixes
- Other tiny fixes, full details are in the shortlog
All of these have been in linux-next for a while with no reported
problems"
[ Geert Uytterhoeven points out that that last sentence isn't true, and
that there's a pending report that has a fix that is queued up - Linus ]
* tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (124 commits)
debugfs: drop inline constant formatting for ERR_PTR(-ERROR)
OPP: fix error checking in opp_migrate_dentry()
debugfs: update comment of debugfs_rename()
i3c: fix device.h kernel-doc warnings
dma-mapping: no need to pass a bus_type into get_arch_dma_ops()
driver core: class: move EXPORT_SYMBOL_GPL() lines to the correct place
Revert "driver core: add error handling for devtmpfs_create_node()"
Revert "devtmpfs: add debug info to handle()"
Revert "devtmpfs: remove return value of devtmpfs_delete_node()"
driver core: cpu: don't hand-override the uevent bus_type callback.
devtmpfs: remove return value of devtmpfs_delete_node()
devtmpfs: add debug info to handle()
driver core: add error handling for devtmpfs_create_node()
driver core: bus: update my copyright notice
driver core: bus: add bus_get_dev_root() function
driver core: bus: constify bus_unregister()
driver core: bus: constify some internal functions
driver core: bus: constify bus_get_kset()
driver core: bus: constify bus_register/unregister_notifier()
driver core: remove private pointer from struct bus_type
...
Here is the large set of driver changes for char/misc drivers and other
smaller driver subsystems that flow through this git tree.
Included in here are:
- New IIO drivers and features and improvments in that subsystem
- New hwtracing drivers and additions to that subsystem
- lots of interconnect changes and new drivers as that subsystem seems
under very active development recently. This required also merging
in the icc subsystem changes through this tree.
- FPGA driver updates
- counter subsystem and driver updates
- MHI driver updates
- nvmem driver updates
- documentation updates
- Other smaller driver updates and fixes, full details in the shortlog
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc and other driver subsystem updates from Greg KH:
"Here is the large set of driver changes for char/misc drivers and
other smaller driver subsystems that flow through this git tree.
Included in here are:
- New IIO drivers and features and improvments in that subsystem
- New hwtracing drivers and additions to that subsystem
- lots of interconnect changes and new drivers as that subsystem
seems under very active development recently. This required also
merging in the icc subsystem changes through this tree.
- FPGA driver updates
- counter subsystem and driver updates
- MHI driver updates
- nvmem driver updates
- documentation updates
- Other smaller driver updates and fixes, full details in the
shortlog
All of these have been in linux-next for a while with no reported
problems"
* tag 'char-misc-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (223 commits)
scripts/tags.sh: fix incompatibility with PCRE2
firmware: coreboot: Remove GOOGLE_COREBOOT_TABLE_ACPI/OF Kconfig entries
mei: lower the log level for non-fatal failed messages
mei: bus: disallow driver match while dismantling device
misc: vmw_balloon: fix memory leak with using debugfs_lookup()
nvmem: stm32: fix OPTEE dependency
dt-bindings: nvmem: qfprom: add IPQ8074 compatible
nvmem: qcom-spmi-sdam: register at device init time
nvmem: rave-sp-eeprm: fix kernel-doc bad line warning
nvmem: stm32: detect bsec pta presence for STM32MP15x
nvmem: stm32: add OP-TEE support for STM32MP13x
nvmem: core: use nvmem_add_one_cell() in nvmem_add_cells_from_of()
nvmem: core: add nvmem_add_one_cell()
nvmem: core: drop the removal of the cells in nvmem_add_cells()
nvmem: core: move struct nvmem_cell_info to nvmem-provider.h
nvmem: core: add an index parameter to the cell
of: property: add #nvmem-cell-cells property
of: property: make #.*-cells optional for simple props
of: base: add of_parse_phandle_with_optional_args()
net: add helper eth_addr_add()
...
Here is the big set of serial and tty driver updates for 6.3-rc1.
Once again, Jiri and Ilpo have done a number of core vt and tty/serial
layer cleanups that were much needed and appreciated. Other than that,
it's just a bunch of little tty/serial driver updates:
- qcom-geni-serial driver updates
- liteuart driver updates
- hvcs driver cleanups
- n_gsm updates and additions for new features
- more 8250 device support added
- fpga/dfl update and additions
- imx serial driver updates
- fsl_lpuart updates
- other tiny fixes and updates for serial drivers
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial driver updates from Greg KH:
"Here is the big set of serial and tty driver updates for 6.3-rc1.
Once again, Jiri and Ilpo have done a number of core vt and tty/serial
layer cleanups that were much needed and appreciated. Other than that,
it's just a bunch of little tty/serial driver updates:
- qcom-geni-serial driver updates
- liteuart driver updates
- hvcs driver cleanups
- n_gsm updates and additions for new features
- more 8250 device support added
- fpga/dfl update and additions
- imx serial driver updates
- fsl_lpuart updates
- other tiny fixes and updates for serial drivers
All of these have been in linux-next for a while with no reported
problems"
* tag 'tty-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (143 commits)
tty: n_gsm: add keep alive support
serial: imx: remove a redundant check
dt-bindings: serial: snps-dw-apb-uart: add dma & dma-names properties
soc: qcom: geni-se: Move qcom-geni-se.h to linux/soc/qcom/geni-se.h
tty: n_gsm: add TIOCMIWAIT support
tty: n_gsm: add RING/CD control support
tty: n_gsm: mark unusable ioctl structure fields accordingly
serial: imx: get rid of registers shadowing
serial: imx: refine local variables in rxint()
serial: imx: stop using USR2 in FIFO reading loop
serial: imx: remove redundant USR2 read from FIFO reading loop
serial: imx: do not break from FIFO reading loop prematurely
serial: imx: do not sysrq broken chars
serial: imx: work-around for hardware RX flood
serial: imx: factor-out common code to imx_uart_soft_reset()
serial: 8250_pci1xxxx: Add power management functions to quad-uart driver
serial: 8250_pci1xxxx: Add RS485 support to quad-uart driver
serial: 8250_pci1xxxx: Add driver for quad-uart support
serial: 8250_pci: Add serial8250_pci_setup_port definition in 8250_pcilib.c
tty: pcn_uart: fix memory leak with using debugfs_lookup()
...
- Change MFD support status from Supported to Maintained
- New Drivers
- Add support for the Intel Platform Management Component Interface (PMCI)
- Remove Drivers
- HTC PASIC3 LED/DS1WM
- Toshiba T7L66XB, TC6387XB and TC6393XB TMIO
- New Device Support
- Add support for N6000 Flash to Intel M10 BMC PMCI
- Add support for Lenovo Yoga Tab 3 to Intel CHTWC PMIC
- New Functionality
- Provide Reset support to Syscon
- Fix-ups
- Explicitly provide missing include files
- Pass platform type data/info via the SPI/I2C/DT registration strategy
- Lots of DT documentation / adaptions
- Replace scnprintf() with preferred sysfs_emit()
- Remove unused / superfluous code
- Fix some trivial whitesspace / spelling / grammatical issues
- Replace pm_power_off with new and improved register_sys_off_handler() API
- Bug Fixes
- Reintroduce RK808-clkout registration - fixing Wi-Fi and Bluetooth
- Repair the order of AXPxxx IRQ PEK RISE/FALL definitions
- Refuse to build CS5535 on unsupported UML architectures
- Fix memory leaks in error return paths
- Prevent refcount leaks in error return paths
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Merge tag 'mfd-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Core Framework:
- Change MFD support status from Supported to Maintained
New Drivers:
- Add support for the Intel Platform Management Component Interface
(PMCI)
Removed Drivers:
- HTC PASIC3 LED/DS1WM
- Toshiba T7L66XB, TC6387XB and TC6393XB TMIO
New Device Support:
- Add support for N6000 Flash to Intel M10 BMC PMCI
- Add support for Lenovo Yoga Tab 3 to Intel CHTWC PMIC
New Functionality:
- Provide Reset support to Syscon
Fix-ups:
- Explicitly provide missing include files
- Pass platform type data/info via the SPI/I2C/DT registration
strategy
- Lots of DT documentation / adaptions
- Replace scnprintf() with preferred sysfs_emit()
- Remove unused / superfluous code
- Fix some trivial whitesspace / spelling / grammatical issues
- Replace pm_power_off with new and improved
register_sys_off_handler() API
Bug Fixes:
- Reintroduce RK808-clkout registration - fixing Wi-Fi and Bluetooth
- Repair the order of AXPxxx IRQ PEK RISE/FALL definitions
- Refuse to build CS5535 on unsupported UML architectures
- Fix memory leaks in error return paths
- Prevent refcount leaks in error return paths"
* tag 'mfd-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (40 commits)
dt-bindings: mfd: qcom,tcsr: Add compatible for IPQ5332
dt-bindings: mfd: Add NXP BBNSM
mfd: ntxec: Add version number for EC in Tolino Vision
dt-bindings: mfd: syscon: Add mt8365-syscfg
mfd: Remove toshiba tmio drivers
mfd: arizona: Use pm_runtime_resume_and_get() to prevent refcnt leak
mfd: syscon: Allow reset control for syscon devices
dt-bindings: mfd/syscon: Add resets property
dt-bindings: mfd: syscon: Add amd,pensando-elba-syscon compatible
dt-bindings: mfd: qcom,tcsr: Add compatible for MSM8226
mfd: simple-mfd-i2c: Fix incoherent comment regarding DT registration
mfd: axp20x: Switch to the sys-off handler API
mfd: core: Spelling s/compement/complement/
mfd: max8925: Remove the unused function irq_to_max8925()
mfd: qcom-pm8xxx: Remove set but unused variable 'rev'
dt-bindings: mfd: syscon: Document GXP register compatible
mfd: twl4030-power: Drop empty platform remove function
mfd: twl: Fix TWL6032 phy vbus detection
mfd: pcf50633-adc: Fix potential memleak in pcf50633_adc_async_read()
MAINTAINERS: Move MFD from a Supported to Maintaied state
...
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Merge 6.2-rc7 into char-misc-next
We need the char-misc driver fixes in here as other patches depend on
them.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add support for PMCI-based flash access path and N6000 sec update
support. Access to flash staging area is different for N6000 from that
of the SPI interfaced counterparts.
Introduce intel_m10bmc_flash_bulk_ops to allow interface specific
differentiations for the flash access path for sec update and make
m10bmc_sec_read/write() in sec update driver to use the new operations.
The .flash_mutex serializes read/read. Flash update (erase+write) must
use ->lock/unlock_write() to prevent reads during update (reads would
timeout on setting flash MUX as BMC will prevent it).
Create a type specific RSU status reg handler for N6000 because the
field has moved from doorbell to auth result register.
If a failure is detected while altering the flash MUX, it seems safer
to try to set it back and doesn't seem harmful. Likely there are enough
troubles in that case anyway so setting it back fails too (which is
harmless sans the small extra delay) or just confirms that the value
wasn't changed.
Co-developed-by: Tianfei zhang <tianfei.zhang@intel.com>
Signed-off-by: Tianfei zhang <tianfei.zhang@intel.com>
Co-developed-by: Russ Weight <russell.h.weight@intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230116100845.6153-12-ilpo.jarvinen@linux.intel.com
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Merge tag 'ib-mfd-fpga-hwmon-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into for-fpga-v6.3-rc1
Lee writes:
Immutable branch between MFD, FPGA and HWMON due for the v6.3 merge window
* tag 'ib-mfd-fpga-hwmon-v6.3' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
mfd: intel-m10-bmc: Add PMCI driver
fpga: m10bmc-sec: Make rsu status type specific
fpga: m10bmc-sec: Create helpers for rsu status/progress checks
mfd: intel-m10-bmc: Prefix register defines with M10BMC_N3000
fpga: intel-m10-bmc: Rework flash read/write
mfd: intel-m10-bmc: Support multiple CSR register layouts
mfd: intel-m10-bmc: Split into core and spi specific parts
mfd: intel-m10-bmc: Rename the local variables
mfd: intel-m10-bmc: Create m10bmc_platform_info for type specific info
mfd: intel-m10-bmc: Add missing includes to header
This patch changes the show() method of the "state" sysfs attribute to
propagate errors returned by the enable_show() op. In this way,
userspace can distinguish between when the bridge is actually "enabled"
(i.e., allowing signals) or "disabled" (i.e., gating signals), or when
there is an error.
Currently, enable_show() returns an integer representing the bridge's
state (enabled or disabled) or an error code. However, this integer
value is interpreted in state_show() as a bool, resulting in the method
printing "enabled" (i.e., the bridge allows signals to pass), without
propagating the error, even when enable_show() returns an error code.
Signed-off-by: Marco Pagani <marpagan@redhat.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230125140622.176870-1-marpagan@redhat.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Fix more kernel-doc warnings in drivers/fpga/:
$ ./scripts/kernel-doc -none drivers/fpga/*
drivers/fpga/dfl-afu.h:61: warning: expecting prototype for struct fpga_afu_dma_region. Prototype was for struct dfl_afu_dma_region instead
drivers/fpga/dfl-afu-region.c:52: warning: Function parameter or member 'pdata' not described in 'afu_mmio_region_add'
drivers/fpga/dfl-fme-perf.c:161: warning: Function parameter or member 'node' not described in 'fme_perf_priv'
drivers/fpga/dfl-fme-pr.h:70: warning: expecting prototype for struct dfl_fme_bridge_pdata. Prototype was for struct dfl_fme_br_pdata instead
drivers/fpga/dfl.h:256: warning: Function parameter or member 'revision' not described in 'dfl_feature'
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20230114155444.794712-1-yilun.xu@intel.com
mpf_ops_write() function writes bitstream data to the FPGA by a smaller
frames. Introduce mpf_spi_frame_write() function which is for writing a
single data frame and use it in mpf_ops_write().
No functional changes intended.
Signed-off-by: Ivan Bornyakov <i.bornyakov@metrotek.ru>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20221230092922.18822-4-i.bornyakov@metrotek.ru
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Original busy loop with retries count in mpf_poll_status() is not too
reliable, as it takes different times on different systems. Replace it
with read_poll_timeout() macro.
While at it, fix polling stop condition to met function's original
intention declared in the comment. The issue with original polling stop
condition is that it stops if any of mask bits is set, while intention
was to stop if all mask bits is set. This was not noticible because only
MPF_STATUS_READY is passed as mask argument and it is BIT(1).
Fixes: 5f8d4a9008 ("fpga: microchip-spi: add Microchip MPF FPGA manager")
Signed-off-by: Ivan Bornyakov <i.bornyakov@metrotek.ru>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20221230092922.18822-3-i.bornyakov@metrotek.ru
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
As spi-summary doc says:
> I/O buffers use the usual Linux rules, and must be DMA-safe.
> You'd normally allocate them from the heap or free page pool.
> Don't use the stack, or anything that's declared "static".
Replace spi_write() with spi_write_then_read(), which is dma-safe for
on-stack buffers. Use cacheline aligned buffers for transfers used in
spi_sync_transfer().
Although everything works OK with stack-located I/O buffers, better
follow the doc to be safe.
Fixes: 5f8d4a9008 ("fpga: microchip-spi: add Microchip MPF FPGA manager")
Signed-off-by: Ivan Bornyakov <i.bornyakov@metrotek.ru>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20221230092922.18822-2-i.bornyakov@metrotek.ru
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
