Commit Graph

347 Commits

Author SHA1 Message Date
Linus Torvalds
a09476668e Char/Misc and other driver changes for 6.1-rc1
Here is the large set of char/misc and other small driver subsystem
 changes for 6.1-rc1.  Loads of different things in here:
   - IIO driver updates, additions, and changes.  Probably the largest
     part of the diffstat
   - habanalabs driver update with support for new hardware and features,
     the second largest part of the diff.
   - fpga subsystem driver updates and additions
   - mhi subsystem updates
   - Coresight driver updates
   - gnss subsystem updates
   - extcon driver updates
   - icc subsystem updates
   - fsi subsystem updates
   - nvmem subsystem and driver updates
   - misc driver updates
   - speakup driver additions for new features
   - lots of tiny driver updates and cleanups
 
 All of these have been in the linux-next tree for a while with no
 reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc and other driver updates from Greg KH:
 "Here is the large set of char/misc and other small driver subsystem
  changes for 6.1-rc1. Loads of different things in here:

   - IIO driver updates, additions, and changes. Probably the largest
     part of the diffstat

   - habanalabs driver update with support for new hardware and
     features, the second largest part of the diff.

   - fpga subsystem driver updates and additions

   - mhi subsystem updates

   - Coresight driver updates

   - gnss subsystem updates

   - extcon driver updates

   - icc subsystem updates

   - fsi subsystem updates

   - nvmem subsystem and driver updates

   - misc driver updates

   - speakup driver additions for new features

   - lots of tiny driver updates and cleanups

  All of these have been in the linux-next tree for a while with no
  reported issues"

* tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (411 commits)
  w1: Split memcpy() of struct cn_msg flexible array
  spmi: pmic-arb: increase SPMI transaction timeout delay
  spmi: pmic-arb: block access for invalid PMIC arbiter v5 SPMI writes
  spmi: pmic-arb: correct duplicate APID to PPID mapping logic
  spmi: pmic-arb: add support to dispatch interrupt based on IRQ status
  spmi: pmic-arb: check apid against limits before calling irq handler
  spmi: pmic-arb: do not ack and clear peripheral interrupts in cleanup_irq
  spmi: pmic-arb: handle spurious interrupt
  spmi: pmic-arb: add a print in cleanup_irq
  drivers: spmi: Directly use ida_alloc()/free()
  MAINTAINERS: add TI ECAP driver info
  counter: ti-ecap-capture: capture driver support for ECAP
  Documentation: ABI: sysfs-bus-counter: add frequency & num_overflows items
  dt-bindings: counter: add ti,am62-ecap-capture.yaml
  counter: Introduce the COUNTER_COMP_ARRAY component type
  counter: Consolidate Counter extension sysfs attribute creation
  counter: Introduce the Count capture component
  counter: 104-quad-8: Add Signal polarity component
  counter: Introduce the Signal polarity component
  counter: interrupt-cnt: Implement watch_validate callback
  ...
2022-10-08 08:56:37 -07:00
Russ Weight
468c9d928a
fpga: m10bmc-sec: Fix possible memory leak of flash_buf
There is an error check following the allocation of flash_buf that returns
without freeing flash_buf. It makes more sense to do the error check
before the allocation and the reordering eliminates the memory leak.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 154afa5c31 ("fpga: m10bmc-sec: expose max10 flash update count")
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220916235205.106873-1-russell.h.weight@intel.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-09-19 12:58:19 +08:00
Russ Weight
562d0bf2ca
fpga: m10bmc-sec: d5005 bmc secure update driver
Add a driver name for the D5005 BMC secure update driver. Different
driver names are used for the N3000 and D5005 devices because future
changes will add conditional code based on the device type (N3000
vs D5005). This change enables D5005 secure updates of BCM images,
BMC firmware, static-region images, etc.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20220902165706.518074-3-russell.h.weight@intel.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-09-11 15:36:35 +08:00
Dan Carpenter
939bc5453b
fpga: prevent integer overflow in dfl_feature_ioctl_set_irq()
The "hdr.count * sizeof(s32)" multiplication can overflow on 32 bit
systems leading to memory corruption.  Use array_size() to fix that.

Fixes: 322b598be4 ("fpga: dfl: introduce interrupt trigger setting API")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/YxBAtYCM38dM7yzI@kili
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-09-04 01:48:00 +08:00
Conor Dooley
2a0805f55b
fpga: microchip-spi: add missing module author entry
Add the missing MODULE_AUTHOR entry for the Microchip spi-slave FPGA
programming driver.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Ivan Bornyakov <i.bornyakov@metrotek.ru>
Reviewed-by: Tom Rix <trix@redhat.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20220728075012.3136914-1-conor.dooley@microchip.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-08-15 11:38:57 +08:00
Matthew Gerlach
65f5c01033
fpga: dfl-pci: Add IDs for Intel N6000, N6001 and C6100 cards
Add pci_dev_table entries supporting the Intel N6000, N6001
and C6100 cards to the dfl-pci driver.

Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Signed-off-by: Tianfei Zhang <tianfei.zhang@intel.com>
Tested-by: Marco Pagani <marpagan@redhat.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Acked-by: Wu Hao <hao.wu@intel.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20220719145644.242481-1-matthew.gerlach@linux.intel.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-08-15 11:38:31 +08:00
Colin Ian King
ee794221a6
fpga: fpga-mgr: Fix spelling mistake "bitsream" -> "bitstream"
There is an spelling mistake in a dev_err message. Fix it.

Fixes: 3cc624beba ("fpga: fpga-mgr: support bitstream offset in image buffer")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220624081409.14760-1-colin.i.king@gmail.com
[yilun.xu@intel.com: add the Fixes tag]
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-06-29 15:18:18 +08:00
Ivan Bornyakov
5f8d4a9008
fpga: microchip-spi: add Microchip MPF FPGA manager
Add support to the FPGA manager for programming Microchip Polarfire
FPGAs over slave SPI interface with .dat formatted bitsream image.

Signed-off-by: Ivan Bornyakov <i.bornyakov@metrotek.ru>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20220623163248.3672-4-i.bornyakov@metrotek.ru
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-06-24 12:12:31 +08:00
Ivan Bornyakov
3cc624beba
fpga: fpga-mgr: support bitstream offset in image buffer
At the moment FPGA manager core loads to the device entire image
provided to fpga_mgr_load(). But it is not always whole FPGA image
buffer meant to be written to the device. In particular, .dat formatted
image for Microchip MPF contains meta info in the header that is not
meant to be written to the device. This is issue for those low level
drivers that loads data to the device with write() fpga_manager_ops
callback, since write() can be called in iterator over scatter-gather
table, not only linear image buffer. On the other hand, write_sg()
callback is provided with whole image in scatter-gather form and can
decide itself which part should be sent to the device.

Add header_size and data_size to the fpga_image_info struct, add
skip_header to the fpga_manager_ops struct and adjust fpga_mgr_write()
callers with respect to them.

  * info->header_size indicates part at the beginning of image buffer
    that contains some meta info. It is optional and can be 0,
    initialized with mops->initial_header_size.

  * mops->skip_header tells fpga-mgr core whether write should start
    from the beginning of image buffer or at the offset of header_size.

  * info->data_size is the size of bitstream data that is meant to be
    written to the device. It is also optional and can be 0, which
    means bitstream data is up to the end of image buffer.

Also add parse_header() callback to fpga_manager_ops, which purpose is
to set info->header_size and info->data_size. At least
initial_header_size bytes of image buffer will be passed into
parse_header() first time. If it is not enough, parse_header() should
set desired size into info->header_size and return -EAGAIN, then it will
be called again with greater part of image buffer on the input.

Suggested-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Ivan Bornyakov <i.bornyakov@metrotek.ru>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20220623163248.3672-2-i.bornyakov@metrotek.ru
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-06-24 12:11:18 +08:00
Marco Pagani
2df84a757d
fpga: altera-pr-ip: fix unsigned comparison with less than zero
Fix the "comparison with less than zero" warning reported by
cppcheck for the unsigned (size_t) parameter count of the
alt_pr_fpga_write() function.

Fixes: d201cc17a8 ("fpga pr ip: Core driver support for Altera Partial Reconfiguration IP")
Reviewed-by: Tom Rix <trix@redhat.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Marco Pagani <marpagan@redhat.com>
Link: https://lore.kernel.org/r/20220609140520.42662-1-marpagan@redhat.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-06-10 15:48:23 +08:00
keliu
a5e3d775d0
fpga: Directly use ida_alloc()/free()
Use ida_alloc()/ida_free() instead of deprecated
ida_simple_get()/ida_simple_remove() .

Signed-off-by: keliu <liuke94@huawei.com>
Link: https://lore.kernel.org/r/20220527085915.2798928-1-liuke94@huawei.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-06-08 17:04:39 +08:00
Russ Weight
5cd339b370
fpga: m10bmc-sec: add max10 secure update functions
Create firmware upload ops and call the Firmware Upload support of the
Firmware Loader subsystem to enable FPGA image uploads for secure
updates of BMC images, FPGA images, etc.

Tested-by: Tianfei Zhang <tianfei.zhang@intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Link: https://lore.kernel.org/r/20220606160038.846236-6-russell.h.weight@intel.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-06-08 17:04:39 +08:00
Russ Weight
7f03d84a67
fpga: m10bmc-sec: expose max10 canceled keys in sysfs
Extend the MAX10 BMC Secure Update driver to provide sysfs files to
expose the 128 bit code signing key (CSK) cancellation vectors. These use
the standard bitmap list format (e.g. 1,2-6,9).

Each CSK is assigned an ID, a number between 0-127, during the signing
process. CSK ID cancellation information is stored in 128-bit fields in
write-once locations in flash.  The cancellation of a CSK can be used
to prevent the card from being rolled back to older images that were
signed with a CSK that is now cancelled.

Reviewed-by: Tom Rix <trix@redhat.com>
Tested-by: Tianfei Zhang <tianfei.zhang@intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Link: https://lore.kernel.org/r/20220606160038.846236-5-russell.h.weight@intel.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-06-08 17:04:38 +08:00
Russ Weight
154afa5c31
fpga: m10bmc-sec: expose max10 flash update count
Extend the MAX10 BMC Secure Update driver to provide a sysfs file to
expose the flash update count.

Reviewed-by: Tom Rix <trix@redhat.com>
Tested-by: Tianfei Zhang <tianfei.zhang@intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Link: https://lore.kernel.org/r/20220606160038.846236-4-russell.h.weight@intel.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-06-08 17:04:38 +08:00
Russ Weight
bdf86d0e6c
fpga: m10bmc-sec: create max10 bmc secure update
Create a sub-driver for the FPGA Card BMC in order to support secure
updates.  This patch creates the Max10 BMC Secure Update driver and
provides sysfs files for displaying the root entry hashes (REH) for the
FPGA static region (SR), the FPGA Partial Reconfiguration (PR) region,
and the card BMC.

The Intel MAX10 BMC Root of Trust (RoT) requires that all BMC Nios firmware
and FPGA images are authenticated using ECDSA before loading and executing
on the card. Code Signing Keys (CSK) are used to sign images. CSKs are
signed by a root key. The root entry hash is created from the root public
key.

The RoT provides authentication by storing an REH bitstream to a write-once
location. Image signatures are verified against the hash.

Reviewed-by: Tom Rix <trix@redhat.com>
Tested-by: Tianfei Zhang <tianfei.zhang@intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Link: https://lore.kernel.org/r/20220606160038.846236-3-russell.h.weight@intel.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-06-08 17:04:37 +08:00
Matthew Gerlach
ae23f746d7
fpga: dfl: Allow Port to be linked to FME's DFL
Currently we use PORTn_OFFSET to locate PORT DFLs, and PORT DFLs are not
connected FME DFL. But for some cases (e.g. Intel Open FPGA Stack device),
PORT DFLs are connected to FME DFL directly, so we don't need to search
PORT DFLs via PORTn_OFFSET again. If BAR value of PORTn_OFFSET is 0x7
(FME_PORT_OFST_BAR_SKIP) then driver will skip searching the DFL for that
port. If BAR value is invalid, return -EINVAL.

Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Signed-off-by: Tianfei Zhang <tianfei.zhang@intel.com>
Acked-by: Wu Hao <hao.wu@intel.com>
Link: https://lore.kernel.org/r/20220505100617.703672-1-tianfei.zhang@intel.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-05-10 16:05:38 +08:00
Tianfei zhang
88b3f3ff38
fpga: dfl: check feature type before parse irq info
Previously the feature IDs defined are unique, no matter
which feature type. But currently we want to extend its
usage to have a per-type feature ID space, so this patch
adds feature type checking as well just before look into
feature ID for different features which have irq info.

Signed-off-by: Tianfei zhang <tianfei.zhang@intel.com>
Reviewed-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Acked-by: Wu Hao <hao.wu@intel.com>
Acked-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20220419032942.427429-2-tianfei.zhang@intel.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-05-10 16:05:15 +08:00
Nava kishore Manne
838a84382a
fpga: fpga-region: fix kernel-doc formatting issues
To fix below kernel-doc warnings this patch does the following
->Replaced Return\Returns with 'Return:' keyword.
->Added 'Return' description For __init of_fpga_region_init()' API.
->Added description for 'child_regions_with_firmware()' API.

warning: No description found for return value of
'of_fpga_region_find'.
warning: No description found for return value of
'of_fpga_region_get_bridges'.
warning: missing initial short description on line:
* child_regions_with_firmware
warning: No description found for return value of
'child_regions_with_firmware'.
warning: No description found for return value of
'of_fpga_region_notify_pre_apply'.
warning: No description found for return value of
'of_fpga_region_notify'.
warning: No description found for return value of
'of_fpga_region_init'.

Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
Link: https://lore.kernel.org/r/20220423170235.2115479-6-nava.manne@xilinx.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-05-10 16:05:00 +08:00
Nava kishore Manne
baf7d27d03
fpga: Use tab instead of space indentation
In FPGA Makefile has both space and tab indentation, to
make them align use tab instead of space indentation.

Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
Link: https://lore.kernel.org/r/20220423170235.2115479-5-nava.manne@xilinx.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-05-10 16:04:50 +08:00
Nava kishore Manne
3f3f9cb67f
fpga: fpga-mgr: fix kernel-doc warnings
warnings: No description found for return value of 'xxx'

In-order to fix the above kernel-doc warnings added the
'Return' description for 'devm_fpga_mgr_register_full()'
and 'devm_fpga_mgr_register()' APIs.

Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
Link: https://lore.kernel.org/r/20220423170235.2115479-4-nava.manne@xilinx.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-05-10 16:04:11 +08:00
Nava kishore Manne
57ce2e406f
fpga: fix for coding style issues
fixes the below checks reported by checkpatch.pl:
- Lines should not end with a '('
- Alignment should match open parenthesis

Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
Link: https://lore.kernel.org/r/20220423170235.2115479-3-nava.manne@xilinx.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-05-10 16:03:52 +08:00
Christophe JAILLET
21f0a239ec fpga: dfl: pci: Remove usage of the deprecated "pci-dma-compat.h" API
In [1], Christoph Hellwig has proposed to remove the wrappers in
include/linux/pci-dma-compat.h.

Some reasons why this API should be removed have been given by Julia
Lawall in [2].

A coccinelle script has been used to perform the needed transformation.
It can be found in [3].

It has been hand modified to use 'dma_set_mask_and_coherent()' instead of
'pci_set_dma_mask()/pci_set_consistent_dma_mask()' when applicable.
This is less verbose.

The explicit 'ret = -EIO;' has been removed because
'dma_set_mask_and_coherent()' returns 0 or -EIO, so its return code can be
used directly.

[1]: https://lore.kernel.org/kernel-janitors/20200421081257.GA131897@infradead.org/
[2]: https://lore.kernel.org/kernel-janitors/alpine.DEB.2.22.394.2007120902170.2424@hadrien/
[3]: https://lore.kernel.org/kernel-janitors/20200716192821.321233-1-christophe.jaillet@wanadoo.fr/

Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2022-01-25 11:25:50 -08:00
Yang Li
98ceca2f29 fpga: region: fix kernel-doc
Fix function name in of-fpga-region.c kernel-doc comment
to remove a warning found by running scripts/kernel-doc,
which is caused by using 'make W=1'.

drivers/fpga/of-fpga-region.c:451: warning: expecting prototype for
fpga_region_init(). Prototype was for of_fpga_region_init() instead.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-12-09 20:06:54 -08:00
Nathan Chancellor
ea59fc1bef fpga: stratix10-soc: Do not use ret uninitialized in s10_probe()
Clang warns:

drivers/fpga/stratix10-soc.c:431:9: warning: variable 'ret' is uninitialized when used here [-Wuninitialized]
        return ret;
               ^~~

ret is only assigned in an error path now so just return 0 directly.

Fixes: 4ba0b2c294 ("fpga: mgr: Use standard dev_release for class driver")
Link: https://github.com/ClangBuiltLinux/linux/issues/1517
Reviewed-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-12-02 20:07:17 -08:00
Russ Weight
8886a57974 fpga: region: Use standard dev_release for class driver
The FPGA region class driver data structure is being treated as a
managed resource instead of using the standard dev_release call-back
function to release the class data structure. This change removes the
managed resource code and combines the create() and register()
functions into a single register() or register_full() function.

The register_full() function accepts an info data structure to provide
flexibility in passing optional parameters. The register() function
supports the current parameter list for users that don't require the
use of optional parameters.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-11-28 14:02:41 -08:00
Russ Weight
0d70af3c25 fpga: bridge: Use standard dev_release for class driver
The FPGA bridge class driver data structure is being treated as a
managed resource instead of using the standard dev_release call-back
function to release the class data structure. This change removes
the managed resource code and combines the create() and register()
functions into a single register() function.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-11-28 14:02:13 -08:00
Russ Weight
4ba0b2c294 fpga: mgr: Use standard dev_release for class driver
The FPGA manager class driver data structure is being treated as a
managed resource instead of using the standard dev_release call-back
function to release the class data structure. This change removes
the managed resource code for the freeing of the class data structure
and combines the create() and register() functions into a single
register() or register_full() function.

The register_full() function accepts an info data structure to provide
flexibility in passing optional parameters. The register() function
supports the current parameter list for users that don't require the
use of optional parameters.

The devm_fpga_mgr_register() function is retained, and the
devm_fpga_mgr_register_full() function is added.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-11-28 13:59:13 -08:00
Mark Brown
2a2a79577d fpga: ice40-spi: Add SPI device ID table
Currently autoloading for SPI devices does not use the DT ID table, it uses
SPI modalises. Supporting OF modalises is going to be difficult if not
impractical, an attempt was made but has been reverted, so ensure that
module autoloading works for this driver by adding a SPI ID table.

Fixes: 96c8395e21 ("spi: Revert modalias changes")
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-09-27 14:00:41 -07:00
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