Commit Graph

319 Commits

Author SHA1 Message Date
Russ Weight
e9a9970bf5 fpga: dfl: Avoid reads to AFU CSRs during enumeration
CSR address space for Accelerator Functional Units (AFU) is not available
during the early Device Feature List (DFL) enumeration. Early access
to this space results in invalid data and port errors. This change adds
a condition to prevent an early read from the AFU CSR space.

Fixes: 1604986c3e ("fpga: dfl: expose feature revision from struct dfl_device")
Cc: stable@vger.kernel.org
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-09-16 15:20:55 -07:00
Jiapeng Chong
a1e4470823 fpga: machxo2-spi: Fix missing error code in machxo2_write_complete()
The error code is missing in this code scenario, add the error code
'-EINVAL' to the return value 'ret'.

Eliminate the follow smatch warning:

drivers/fpga/machxo2-spi.c:341 machxo2_write_complete()
  warn: missing error code 'ret'.

[mdf@kernel.org: Reworded commit message]
Fixes: 88fb3a0023 ("fpga: lattice machxo2: Add Lattice MachXO2 support")
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-09-15 14:01:24 -07:00
Tom Rix
34331739e1 fpga: machxo2-spi: Return an error on failure
Earlier successes leave 'ret' in a non error state, so these errors are
not reported. Set ret to -EINVAL before going to the error handler.

This addresses two issues reported by smatch:
drivers/fpga/machxo2-spi.c:229 machxo2_write_init()
  warn: missing error code 'ret'

drivers/fpga/machxo2-spi.c:316 machxo2_write_complete()
  warn: missing error code 'ret'

[mdf@kernel.org: Reworded commit message]
Fixes: 88fb3a0023 ("fpga: lattice machxo2: Add Lattice MachXO2 support")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-09-15 14:01:17 -07:00
Linus Torvalds
c6c3c5704b Driver core update for 5.15-rc1
Here is the big set of driver core patches for 5.15-rc1.
 
 These do change a number of different things across different
 subsystems, and because of that, there were 2 stable tags created that
 might have already come into your tree from different pulls that did the
 following
 	- changed the bus remove callback to return void
 	- sysfs iomem_get_mapping rework
 
 The latter one will cause a tiny merge issue with your tree, as there
 was a last-minute fix for this in 5.14 in your tree, but the fixup
 should be "obvious".  If you want me to provide a fixed merge for this,
 please let me know.
 
 Other than those two things, there's only a few small things in here:
 	- kernfs performance improvements for huge numbers of sysfs
 	  users at once
 	- tiny api cleanups
 	- other minor changes
 
 All of these have been in linux-next for a while with no reported
 problems, other than the before-mentioned merge issue.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the big set of driver core patches for 5.15-rc1.

  These do change a number of different things across different
  subsystems, and because of that, there were 2 stable tags created that
  might have already come into your tree from different pulls that did
  the following

   - changed the bus remove callback to return void

   - sysfs iomem_get_mapping rework

  Other than those two things, there's only a few small things in here:

   - kernfs performance improvements for huge numbers of sysfs users at
     once

   - tiny api cleanups

   - other minor changes

  All of these have been in linux-next for a while with no reported
  problems, other than the before-mentioned merge issue"

* tag 'driver-core-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (33 commits)
  MAINTAINERS: Add dri-devel for component.[hc]
  driver core: platform: Remove platform_device_add_properties()
  ARM: tegra: paz00: Handle device properties with software node API
  bitmap: extend comment to bitmap_print_bitmask/list_to_buf
  drivers/base/node.c: use bin_attribute to break the size limitation of cpumap ABI
  topology: use bin_attribute to break the size limitation of cpumap ABI
  lib: test_bitmap: add bitmap_print_bitmask/list_to_buf test cases
  cpumask: introduce cpumap_print_list/bitmask_to_buf to support large bitmask and list
  sysfs: Rename struct bin_attribute member to f_mapping
  sysfs: Invoke iomem_get_mapping() from the sysfs open callback
  debugfs: Return error during {full/open}_proxy_open() on rmmod
  zorro: Drop useless (and hardly used) .driver member in struct zorro_dev
  zorro: Simplify remove callback
  sh: superhyway: Simplify check in remove callback
  nubus: Simplify check in remove callback
  nubus: Make struct nubus_driver::remove return void
  kernfs: dont call d_splice_alias() under kernfs node lock
  kernfs: use i_lock to protect concurrent inode updates
  kernfs: switch kernfs to use an rwsem
  kernfs: use VFS negative dentry caching
  ...
2021-09-01 08:44:42 -07:00
Greg Kroah-Hartman
bd935a7b21 Merge 5.14-rc5 into driver-core-next
We need the driver core fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-09 09:03:47 +02:00
Greg Kroah-Hartman
813272ed52 Merge 5.14-rc5 into char-misc-next
We need the fixes in here as well, and resolves some merge issues with
the mhi codebase.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-09 08:57:03 +02:00
Greg Kroah-Hartman
72674e86b6 FPGA Manager changes for 5.15-rc1
FPGA Manager
 
 - Colin's change is a simple spelling cleanup.
 
 DFL
 
 - Martin's fist change exposes DFL feature revision to client drivers
 - Martin's second change modifies a SPI driver to populate different
   spi_board_info modaliases based on the DFL feature revision
 
 All patches have been reviewed on the mailing list, and have been in the
 last few linux-next releases (as part of my for-next branch) without issues.
 
 Signed-off-by: Moritz Fischer <mdf@kernel.org>
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Merge tag 'fpga-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-next

Moritz writes:

FPGA Manager changes for 5.15-rc1

FPGA Manager

- Colin's change is a simple spelling cleanup.

DFL

- Martin's fist change exposes DFL feature revision to client drivers
- Martin's second change modifies a SPI driver to populate different
  spi_board_info modaliases based on the DFL feature revision

All patches have been reviewed on the mailing list, and have been in the
last few linux-next releases (as part of my for-next branch) without issues.

Signed-off-by: Moritz Fischer <mdf@kernel.org>

* tag 'fpga-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga:
  spi: spi-altera-dfl: support n5010 feature revision
  fpga: dfl: expose feature revision from struct dfl_device
  fpga: Fix spelling mistake "eXchnage" -> "exchange" in Kconfig
2021-08-05 14:26:03 +02:00
Martin Hundebøll
1604986c3e fpga: dfl: expose feature revision from struct dfl_device
DFL device drivers have a common need for checking feature revision
information from the DFL header, as well as other common DFL information
like the already exposed feature id and type.

This patch exposes the feature revision information directly via the DFL
device data structure.

Since the DFL core code has already read the DFL header, this this patch
saves additional mmio reads from DFL device drivers too.

Acked-by: Wu Hao <hao.wu@intel.com>
Acked-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Signed-off-by: Martin Hundebøll <mhu@silicom.dk>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-29 12:54:10 -07:00
Colin Ian King
5f1895e0e3 fpga: Fix spelling mistake "eXchnage" -> "exchange" in Kconfig
There is a spelling mistake in the Kconfig text. Fix it.

Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-29 11:54:01 -07:00
Kajol Jain
ec6446d530 fpga: dfl: fme: Fix cpu hotplug issue in performance reporting
The performance reporting driver added cpu hotplug
feature but it didn't add pmu migration call in cpu
offline function.
This can create an issue incase the current designated
cpu being used to collect fme pmu data got offline,
as based on current code we are not migrating fme pmu to
new target cpu. Because of that perf will still try to
fetch data from that offline cpu and hence we will not
get counter data.

Patch fixed this issue by adding pmu_migrate_context call
in fme_perf_offline_cpu function.

Fixes: 724142f8c4 ("fpga: dfl: fme: add performance reporting support")
Cc: stable@vger.kernel.org
Tested-by: Xu Yilun <yilun.xu@intel.com>
Acked-by: Wu Hao <hao.wu@intel.com>
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-27 11:05:16 -07:00
Moritz Fischer
9bb3a9dddb fpga: versal-fpga: Remove empty functions
Since the core framework now wraps the functions, ensuring
drives only have to implement functions that do something,
drop the now no longer required callbacks for state and
write_complete.

Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20210726030806.714809-1-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-27 18:46:03 +02:00
Greg Kroah-Hartman
c3328c5e64 FPGA Manager Changes for 5.15-rc1
FPGA Manager
 
 - Navin's change removes a duplicate word in a comment
 - Tom's change fixes a spelling mistake
 - Mauro's change fixes up documentation
 - Tom's second set adds wrappers to allow drivers not having to
   implement empty functions by moving checks into fpga-mgr core code
 - My changes address a bunch of warnings
 
 DFL
 
 - Martin's change adds a new PCI ID for Silicom N501x PAC cards
 
 All patches have been reviewed on the mailing list, and have been in the
 last linux-next releases (as part of my for-next branch).
 
 I did get a complaint about one of the commit messages w/ a Fixes: tags
 which has been addressed.
 
 Signed-offy-by: Moritz Fischer <mdf@kernel.org>
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Merge tag 'fpga-for-5.15-early' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-next

Moritz writes:

FPGA Manager Changes for 5.15-rc1

FPGA Manager

- Navin's change removes a duplicate word in a comment
- Tom's change fixes a spelling mistake
- Mauro's change fixes up documentation
- Tom's second set adds wrappers to allow drivers not having to
  implement empty functions by moving checks into fpga-mgr core code
- My changes address a bunch of warnings

DFL

- Martin's change adds a new PCI ID for Silicom N501x PAC cards

All patches have been reviewed on the mailing list, and have been in the
last linux-next releases (as part of my for-next branch).

I did get a complaint about one of the commit messages w/ a Fixes: tags
which has been addressed.

Signed-offy-by: Moritz Fischer <mdf@kernel.org>

* tag 'fpga-for-5.15-early' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga:
  fpga: fpga-mgr: wrap the write_sg() op
  fpga: fpga-mgr: wrap the fpga_remove() op
  fpga: fpga-mgr: wrap the state() op
  fpga: fpga-mgr: wrap the status() op
  fpga: fpga-mgr: wrap the write() op
  fpga: fpga-mgr: make write_complete() op optional
  fpga: fpga-mgr: wrap the write_init() op
  fpga: zynqmp-fpga: Address warning about unused variable
  fpga: xilinx-pr-decoupler: Address warning about unused variable
  fpga: xiilnx-spi: Address warning about unused variable
  fpga: altera-freeze-bridge: Address warning about unused variable
  fpga: dfl: pci: add device IDs for Silicom N501x PAC cards
  fpga: fpga-bridge: removed repeated word
  fpga: fix spelling mistakes
  docs: driver-api: fpga: avoid using UTF-8 chars
2021-07-27 18:44:33 +02:00
Tom Rix
630211a170 fpga: fpga-mgr: wrap the write_sg() op
An FPGA manager should not be required to provide a
write_sg function. Move the op check to the wrapper.
Default to -EOPNOTSUP so its users will fail
gracefully.

[mdf@kernel.org: Reworded first line]
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-24 15:10:31 -07:00
Tom Rix
6489d3b003 fpga: fpga-mgr: wrap the fpga_remove() op
An FPGA manager is not required to provide a fpga_remove() op.
Add a wrapper consistent with the other op wrappers.
Move op check to wrapper.

[mdf@kernel.org: Reworded first line]
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-24 15:10:31 -07:00
Tom Rix
b02a40713d fpga: fpga-mgr: wrap the state() op
An FPGA manager should not be required to provide a state() op.
Add a wrapper consistent with the other op wrappers.
Move op check to wrapper.
Default to FPGA_MGR_STATE_UNKNOWN, what noop state() ops use.
Remove unneeded noop state() ops

[mdf@kernel.org: Reworded first line]
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-24 15:10:31 -07:00
Tom Rix
6f99227113 fpga: fpga-mgr: wrap the status() op
An FPGA manager is not required to provide a status() op.
Add a wrapper consistent with the other op wrappers.
Move the op check to the wrapper.
Default to 0, no errors to report.

[mdf@kernel.org: Reworded first line]
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-24 15:10:31 -07:00
Tom Rix
8ebab40fd8 fpga: fpga-mgr: wrap the write() op
An FPGA manager should not be required to provide a
write function. Move the op check to the wrapper.
Default to -EOPNOTSUP so its users will fail
gracefully.

[mdf@kernel.org: Reworded message]
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-24 15:10:31 -07:00
Tom Rix
72d935020e fpga: fpga-mgr: make write_complete() op optional
An FPGA manager should not be required to provide a
write_complete function if there is nothing.  Move
the op check to the existing wrapper.
Default to success and remove noop function.

[mdf@kernel.org: Reworded message]
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-24 15:10:30 -07:00
Tom Rix
2e8438b754 fpga: fpga-mgr: wrap the write_init() op
An FPGA manager should not be required to provide a
write_init() op if there is nothing for it do.
So add a wrapper and move the op checking.
Default to success.

[mdf@kernel.org: Reworded first line]
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-24 15:10:30 -07:00
Moritz Fischer
6f125e8718 fpga: zynqmp-fpga: Address warning about unused variable
warning: ‘zynqmp_fpga_of_match’ defined but not used
 [-Wunused-const-variable=]
 static const struct of_device_id zynqmp_fpga_of_match[] = {

Fixes: c09f747112 ("fpga manager: Adding FPGA Manager support for Xilinx zynqmp")
Cc: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-24 15:10:30 -07:00
Moritz Fischer
56ddc78770 fpga: xilinx-pr-decoupler: Address warning about unused variable
warning: ‘xlnx_pr_decoupler_of_match’ defined but not used
 [-Wunused-const-variable=]
 static const struct of_device_id xlnx_pr_decoupler_of_match[] = {

Fixes: 7e961c12be ("fpga: Add support for Xilinx LogiCORE PR Decoupler")
Cc: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-24 15:10:30 -07:00
Moritz Fischer
1aa3fc699c fpga: xiilnx-spi: Address warning about unused variable
warning: ‘xlnx_spi_of_match’ defined but not used
 [-Wunused-const-variable]
  static const struct of_device_id xlnx_spi_of_match[] = {

Fixes: 061c97d13f ("fpga manager: Add Xilinx slave serial SPI driver")
Cc: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-24 15:10:30 -07:00
Moritz Fischer
e3fd0cfb85 fpga: altera-freeze-bridge: Address warning about unused variable
warning: unused variable 'altera_freeze_br_of_match'
 [-Wunused-const-variable]
  static const struct of_device_id altera_freeze_br_of_match[] = {

Fixes: ca24a648f5 ("fpga: add altera freeze bridge support")
Cc: Tom Rix <trix@redhat.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-24 15:10:30 -07:00
Martin Hundebøll
82fb70b87f fpga: dfl: pci: add device IDs for Silicom N501x PAC cards
This adds the approved PCI Express Device IDs for the Silicom PAC N5010
and N5011 cards (aka. Silicom Lightning Creek cards).

The N5010 features an FPGA that manages/interfaces four QSFP ports, and
allows on-board custom packet processing/filtering/routing, based on
logic loaded with user-provided FPGA bitstreams.

The N5011 cards adds a PCIe switch that exposes, in addition to the FPGA
itself, two Intel E810 (aka Columbiaville) ethernet controllers. With
this, packets can be forwarded from the FPGA to the host for further
processing.

Signed-off-by: Martin Hundebøll <mhu@silicom.dk>
Acked-by: Wu Hao <hao.wu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-24 15:10:30 -07:00
Navin Sankar Velliangiri
0a05cdf18b fpga: fpga-bridge: removed repeated word
Removed repeated word and.
Reported by checkpatch.

Signed-off-by: Navin Sankar Velliangiri <navin@linumiz.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-21 19:54:22 -07:00
Tom Rix
580e313731 fpga: fix spelling mistakes
Run the fpga subsystem through aspell.

Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Fernando Pacheco <fpacheco@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-07-21 19:54:21 -07:00
Nava kishore Manne
01c54e6289 fpga: versal-fpga: Add versal fpga manager driver
Add support for Xilinx Versal FPGA manager.

PDI source type can be DDR, OCM, QSPI flash etc..
But driver allocates memory always from DDR, Since driver supports only
DDR source type.

Reviewed-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
Link: https://lore.kernel.org/r/20210626155248.5004-6-nava.manne@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21 13:14:09 +02:00
Uwe Kleine-König
fc7a6209d5 bus: Make remove callback return void
The driver core ignores the return value of this callback because there
is only little it can do when a device disappears.

This is the final bit of a long lasting cleanup quest where several
buses were converted to also return void from their remove callback.
Additionally some resource leaks were fixed that were caused by drivers
returning an error code in the expectation that the driver won't go
away.

With struct bus_type::remove returning void it's prevented that newly
implemented buses return an ignored error code and so don't anticipate
wrong expectations for driver authors.

Reviewed-by: Tom Rix <trix@redhat.com> (For fpga)
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com> (For drivers/s390 and drivers/vfio)
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> (For ARM, Amba and related parts)
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Chen-Yu Tsai <wens@csie.org> (for sunxi-rsb)
Acked-by: Pali Rohár <pali@kernel.org>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org> (for media)
Acked-by: Hans de Goede <hdegoede@redhat.com> (For drivers/platform)
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-By: Vinod Koul <vkoul@kernel.org>
Acked-by: Juergen Gross <jgross@suse.com> (For xen)
Acked-by: Lee Jones <lee.jones@linaro.org> (For mfd)
Acked-by: Johannes Thumshirn <jth@kernel.org> (For mcb)
Acked-by: Johan Hovold <johan@kernel.org>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> (For slimbus)
Acked-by: Kirti Wankhede <kwankhede@nvidia.com> (For vfio)
Acked-by: Maximilian Luz <luzmaximilian@gmail.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> (For ulpi and typec)
Acked-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com> (For ipack)
Acked-by: Geoff Levand <geoff@infradead.org> (For ps3)
Acked-by: Yehezkel Bernat <YehezkelShB@gmail.com> (For thunderbolt)
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> (For intel_th)
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> (For pcmcia)
Acked-by: Rafael J. Wysocki <rafael@kernel.org> (For ACPI)
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> (rpmsg and apr)
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> (For intel-ish-hid)
Acked-by: Dan Williams <dan.j.williams@intel.com> (For CXL, DAX, and NVDIMM)
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com> (For isa)
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (For firewire)
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> (For hid)
Acked-by: Thorsten Scherer <t.scherer@eckelmann.de> (For siox)
Acked-by: Sven Van Asbroeck <TheSven73@gmail.com> (For anybuss)
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> (For MMC)
Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Finn Thain <fthain@linux-m68k.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20210713193522.1770306-6-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21 11:53:42 +02:00
Moritz Fischer
1e2658aef5 fpga: machxo2-spi: Address warning about unused variable
Address warning about unused variable in case CONFIG_OF is not set.

warning: unused variable 'of_match' [-Wunused-const-variable]
    static const struct of_device_id of_match[] = {

Fixes: 88fb3a0023 ("fpga: lattice machxo2: Add Lattice MachXO2 support")
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Tom Rix <trix@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20210618224618.1487323-1-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-24 15:45:11 +02:00
Russ Weight
5e77886d0a fpga: region: Rename dev to parent for parent device
Rename variable "dev" to "parent" in cases where it represents the parent
device.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20210614170909.232415-6-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-15 09:29:55 +02:00
Russ Weight
ceb8ab3c07 fpga: bridge: Rename dev to parent for parent device
Rename variable "dev" to "parent" in cases where it represents the parent
device.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20210614170909.232415-5-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-15 09:29:45 +02:00
Russ Weight
59ef362234 fpga: mgr: Rename dev to parent for parent device
Rename variable "dev" to "parent" in cases where it represents the parent
device.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20210614170909.232415-4-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-15 09:29:35 +02:00
Russ Weight
d9ec9daa20 fpga: stratix10-soc: Add missing fpga_mgr_free() call
The stratix10-soc driver uses fpga_mgr_create() function and is therefore
responsible to call fpga_mgr_free() to release the class driver resources.
Add a missing call to fpga_mgr_free in the s10_remove() function.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Fixes: e7eef1d763 ("fpga: add intel stratix10 soc fpga manager driver")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210614170909.232415-3-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-15 09:28:15 +02:00
Russ Weight
341466b64f fpga: altera-pr-ip: Remove function alt_pr_unregister
Remove the alt_pr_unregister() function; it is no longer used.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20210614170909.232415-2-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-15 09:27:35 +02:00
Tom Rix
8923557bd5 fpga: stratix10-soc: change FPGA indirect article to an
Change use of 'a fpga' to 'an fpga'

Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20210608212350.3029742-12-trix@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-09 14:51:25 +02:00
Tom Rix
25feb31d26 fpga: of-fpga-region: change FPGA indirect article to an
Change use of 'a fpga' to 'an fpga'

Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20210608212350.3029742-11-trix@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-09 14:51:25 +02:00
Tom Rix
011c49e370 fpga: region: change FPGA indirect article to an
Change use of 'a fpga' to 'an fpga'

Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20210608212350.3029742-10-trix@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-09 14:51:25 +02:00
Tom Rix
895ec9c09a fpga-mgr: change FPGA indirect article to an
Change use of 'a fpga' to 'an fpga'

Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20210608212350.3029742-9-trix@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-09 14:51:25 +02:00
Tom Rix
e7555cf6c2 fpga: bridge: change FPGA indirect article to an
Change use of 'a fpga' to 'an fpga'

Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20210608212350.3029742-8-trix@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-09 14:51:25 +02:00
Tom Rix
df82d2ecd9 fpga: change FPGA indirect article to an
Change use of 'a fpga' to 'an fpga'

Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20210608212350.3029742-7-trix@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-09 14:51:25 +02:00
Linus Torvalds
37f00ab4a0 ARM: SoC drivers for v5.13
Updates for SoC specific drivers include a few subsystems that
 have their own maintainers but send them through the soc tree:
 
 TEE/OP-TEE:
  -  Add tracepoints around calls to secure world
 
 Memory controller drivers:
  - Minor fixes for Renesas, Exynos, Mediatek and Tegra platforms
  - Add debug statistics to Tegra20 memory controller
  - Update Tegra bindings and convert to dtschema
 
 ARM SCMI Firmware:
  - Support for modular SCMI protocols and vendor specific extensions
  - New SCMI IIO driver
  - Per-cpu DVFS
 
 The other driver changes are all from the platform maintainers
 directly and reflect the drivers that don't fit into any other
 subsystem as well as treewide changes for a particular platform.
 
 SoCFPGA:
  - Various cleanups contributed by Krzysztof Kozlowski
 
 Mediatek:
  - add MT8183 support to mutex driver
  - MMSYS: use per SoC array to describe the possible routing
  - add MMSYS support for MT8183 and MT8167
  - add support for PMIC wrapper with integrated arbiter
  - add support for MT8192/MT6873
 
 Tegra:
  - Bug fixes to PMC and clock drivers
 
 NXP/i.MX:
  - Update SCU power domain driver to keep console domain power on.
  - Add missing ADC1 power domain to SCU power domain driver.
  - Update comments for single global power domain in SCU power domain
    driver.
  - Add i.MX51/i.MX53 unique id support to i.MX SoC driver.
 
 NXP/FSL SoC driver updates for v5.13
  - Add ACPI support for RCPM driver
  - Use generic io{read,write} for QE drivers after performance optimized
    for PowerPC
  - Fix QBMAN probe to cleanup HW states correctly for kexec
  - Various cleanup and style fix for QBMAN/QE/GUTS drivers
 
 OMAP:
  - Preparation to use devicetree for genpd
  - ti-sysc needs iorange check improved when the interconnect target module
    has no control registers listed
  - ti-sysc needs to probe l4_wkup and l4_cfg interconnects first to avoid
    issues with missing resources and unnecessary deferred probe
  - ti-sysc debug option can now detect more devices
  - ti-sysc now warns if an old incomplete devicetree data is found as we
    now rely on it being complete for am3 and 4
  - soc init code needs to check for prcm and prm nodes for omap4/5 and dra7
  - omap-prm driver needs to enable autoidle retention support for omap4
  - omap5 clocks are missing gpmc and ocmc clock registers
  - pci-dra7xx now needs to use builtin_platform_driver instead of using
    builtin_platform_driver_probe for deferred probe to work
 
 Raspberry Pi:
  - Fix-up all RPi firmware drivers so as for unbind to happen in an
    orderly fashion
  - Support for RPi's PoE hat PWM bus
 
 Qualcomm
  - Improved detection for SCM calling conventions
  - Support for OEM specific wifi firmware path
  - Added drivers for SC7280/SM8350: RPMH, LLCC< AOSS QMP
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-drivers-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "Updates for SoC specific drivers include a few subsystems that have
  their own maintainers but send them through the soc tree:

  TEE/OP-TEE:
   - Add tracepoints around calls to secure world

  Memory controller drivers:
   - Minor fixes for Renesas, Exynos, Mediatek and Tegra platforms
   - Add debug statistics to Tegra20 memory controller
   - Update Tegra bindings and convert to dtschema

  ARM SCMI Firmware:
   - Support for modular SCMI protocols and vendor specific extensions
   - New SCMI IIO driver
   - Per-cpu DVFS

  The other driver changes are all from the platform maintainers
  directly and reflect the drivers that don't fit into any other
  subsystem as well as treewide changes for a particular platform.

  SoCFPGA:
   - Various cleanups contributed by Krzysztof Kozlowski

  Mediatek:
   - add MT8183 support to mutex driver
   - MMSYS: use per SoC array to describe the possible routing
   - add MMSYS support for MT8183 and MT8167
   - add support for PMIC wrapper with integrated arbiter
   - add support for MT8192/MT6873

  Tegra:
   - Bug fixes to PMC and clock drivers

  NXP/i.MX:
   - Update SCU power domain driver to keep console domain power on.
   - Add missing ADC1 power domain to SCU power domain driver.
   - Update comments for single global power domain in SCU power domain
     driver.
   - Add i.MX51/i.MX53 unique id support to i.MX SoC driver.

  NXP/FSL SoC driver updates for v5.13
   - Add ACPI support for RCPM driver
   - Use generic io{read,write} for QE drivers after performance
     optimized for PowerPC
   - Fix QBMAN probe to cleanup HW states correctly for kexec
   - Various cleanup and style fix for QBMAN/QE/GUTS drivers

  OMAP:
   - Preparation to use devicetree for genpd
   - ti-sysc needs iorange check improved when the interconnect target
     module has no control registers listed
   - ti-sysc needs to probe l4_wkup and l4_cfg interconnects first to
     avoid issues with missing resources and unnecessary deferred probe
   - ti-sysc debug option can now detect more devices
   - ti-sysc now warns if an old incomplete devicetree data is found as
     we now rely on it being complete for am3 and 4
   - soc init code needs to check for prcm and prm nodes for omap4/5 and
     dra7
   - omap-prm driver needs to enable autoidle retention support for
     omap4
   - omap5 clocks are missing gpmc and ocmc clock registers
   - pci-dra7xx now needs to use builtin_platform_driver instead of
     using builtin_platform_driver_probe for deferred probe to work

  Raspberry Pi:
   - Fix-up all RPi firmware drivers so as for unbind to happen in an
     orderly fashion
   - Support for RPi's PoE hat PWM bus

  Qualcomm
   - Improved detection for SCM calling conventions
   - Support for OEM specific wifi firmware path
   - Added drivers for SC7280/SM8350: RPMH, LLCC< AOSS QMP"

* tag 'arm-drivers-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (165 commits)
  soc: aspeed: fix a ternary sign expansion bug
  memory: mtk-smi: Add device-link between smi-larb and smi-common
  memory: samsung: exynos5422-dmc: handle clk_set_parent() failure
  memory: renesas-rpc-if: fix possible NULL pointer dereference of resource
  clk: socfpga: fix iomem pointer cast on 64-bit
  soc: aspeed: Adapt to new LPC device tree layout
  pinctrl: aspeed-g5: Adapt to new LPC device tree layout
  ipmi: kcs: aspeed: Adapt to new LPC DTS layout
  ARM: dts: Remove LPC BMC and Host partitions
  dt-bindings: aspeed-lpc: Remove LPC partitioning
  soc: fsl: enable acpi support in RCPM driver
  soc: qcom: mdt_loader: Detect truncated read of segments
  soc: qcom: mdt_loader: Validate that p_filesz < p_memsz
  soc: qcom: pdr: Fix error return code in pdr_register_listener
  firmware: qcom_scm: Fix kernel-doc function names to match
  firmware: qcom_scm: Suppress sysfs bind attributes
  firmware: qcom_scm: Workaround lack of "is available" call on SC7180
  firmware: qcom_scm: Reduce locking section for __get_convention()
  firmware: qcom_scm: Make __qcom_scm_is_call_available() return bool
  Revert "soc: fsl: qe: introduce qe_io{read,write}* wrappers"
  ...
2021-04-26 12:11:52 -07:00
Russ Weight
a78a51a851 fpga: dfl: pci: add DID for D5005 PAC cards
This patch adds the approved PCI Express Device IDs for the
PF and VF for the card for D5005 PAC cards.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-04-05 17:46:56 -07:00
Russ Weight
9a8d3cda8d fpga: dfl: afu: harden port enable logic
Port enable is not complete until ACK = 0. Change
__afu_port_enable() to guarantee that the enable process
is complete by polling for ACK == 0.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Reviewed-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Acked-by: Wu Hao <hao.wu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-03-24 11:15:04 -07:00
Krzysztof Kozlowski
3a1fef70ff fpga: altera: use ARCH_INTEL_SOCFPGA also for 32-bit ARM SoCs
ARCH_SOCFPGA is being renamed to ARCH_INTEL_SOCFPGA so adjust the
32-bit ARM drivers to rely on new symbol.

Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2021-03-23 11:03:36 -05:00
Krzysztof Kozlowski
4a9a1a5602 arm64: socfpga: merge Agilex and N5X into ARCH_INTEL_SOCFPGA
Agilex, N5X and Stratix 10 share all quite similar arm64 hard cores and
SoC-part.  Up to a point that N5X uses the same DTSI as Agilex.  From
the Linux kernel point of view these are flavors of the same
architecture so there is no need for three top-level arm64
architectures.  Simplify this by merging all three architectures into
ARCH_INTEL_SOCFPGA and dropping the other ARCH* arm64 Kconfig entries.

The side effect is that the INTEL_STRATIX10_SERVICE will now be
available for both 32-bit and 64-bit Intel SoCFPGA, even though it is
used only for 64-bit.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2021-03-23 11:03:36 -05:00
Nava kishore Manne
6f1e376cfc fpga: Add support for Xilinx DFX AXI Shutdown manager
This patch adds support for Xilinx Dynamic Function eXchange(DFX) AXI
shutdown manager IP. It can be used to safely handling the AXI traffic
on a Reconfigurable Partition when it is undergoing dynamic reconfiguration
and there by preventing system deadlock that may occur if AXI transactions
are interrupted during reconfiguration.

PR-Decoupler and AXI shutdown manager are completely different IPs.
But both the IP registers are compatible and also both belong to the
same sub-system (fpga-bridge).So using same driver for both IP's.

Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-03-06 07:54:40 -08:00
Michal Simek
2d6e820c4e fpga: xilinx-pr-decoupler: Simplify code by using dev_err_probe()
Use already prepared dev_err_probe() introduced by commit a787e5400a
("driver core: add device probe log helper").
It simplifies EPROBE_DEFER handling.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-03-06 07:39:17 -08:00
Luca Ceresoli
484a58607a fpga: fpga-mgr: xilinx-spi: fix error messages on -EPROBE_DEFER
The current code produces an error message on devm_gpiod_get() errors even
when the error is -EPROBE_DEFER, which should be silent.

This has been observed producing a significant amount of messages like:

    xlnx-slave-spi spi1.1: Failed to get PROGRAM_B gpio: -517

Fix and simplify code by using the dev_err_probe() helper function.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Fixes: dd2784c01d ("fpga manager: xilinx-spi: check INIT_B pin during write_init")
Fixes: 061c97d13f ("fpga manager: Add Xilinx slave serial SPI driver")
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-03-06 07:39:17 -08:00
Greg Kroah-Hartman
09381eb16a First set of FPGA Manager changes for 5.12-rc1
This is the first set of changes for the FPGA Manager 5.12-rc1
 mergewindow.
 
 DFL:
 - Minor cleanup, constifying a static attribute group
 
 Core:
 - Minor cleanup, using DEFINE_SPINLOCK over open coding it
 
 All patches have been reviewed on the mailing list, and have been in the
 last linux-next releases (as part of my for-next branch) without issues.
 
 Signed-off-by: Moritz Fischer <mdf@kernel.org>
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Merge tag 'fpga-cleanup-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-next

Moritz writes:

First set of FPGA Manager changes for 5.12-rc1

This is the first set of changes for the FPGA Manager 5.12-rc1
mergewindow.

DFL:
- Minor cleanup, constifying a static attribute group

Core:
- Minor cleanup, using DEFINE_SPINLOCK over open coding it

All patches have been reviewed on the mailing list, and have been in the
last linux-next releases (as part of my for-next branch) without issues.

Signed-off-by: Moritz Fischer <mdf@kernel.org>

* tag 'fpga-cleanup-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga:
  fpga: dfl: fme: Constify static attribute_group structs
  fpga: Use DEFINE_SPINLOCK() for spinlock
2021-01-12 10:19:14 +01:00
Rikard Falkeborn
e41d4c0117 fpga: dfl: fme: Constify static attribute_group structs
The only usage of these is to put their addresses in arrays of pointers
to const attribute_groups. Make them const to allow the compiler to put
them in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-01-10 10:57:14 -08:00