Commit Graph

1460 Commits

Author SHA1 Message Date
Linus Torvalds bef7b2a7be Merge tag 'devicetree-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:

 - Unit test for overlays with GPIO hogs

 - Improve dma-ranges parsing to handle dma-ranges with multiple entries

 - Update dtc to upstream version v1.6.0-2-g87a656ae5ff9

 - Improve overlay error reporting

 - Device link support for power-domains and hwlocks bindings

 - Add vendor prefixes for Beacon, Topwise, ENE, Dell, SG Micro, Elida,
   PocketBook, Xiaomi, Linutronix, OzzMaker, Waveshare Electronics, and
   ITE Tech

 - Add deprecated Marvell vendor prefix 'mrvl'

 - A bunch of binding conversions to DT schema continues. Of note, the
   common serial and USB connector bindings are converted.

 - Add more Arm CPU compatibles

 - Drop Mark Rutland as DT maintainer :(

* tag 'devicetree-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (106 commits)
  MAINTAINERS: drop an old reference to stm32 pwm timers doc
  MAINTAINERS: dt: update etnaviv file reference
  dt-bindings: usb: dwc2: fix bindings for amlogic, meson-gxbb-usb
  dt-bindings: uniphier-system-bus: fix warning in the example
  dt-bindings: display: meson-vpu: fix indentation of reg-names' "items"
  dt-bindings: iio: Fix adi, ltc2983 uint64-matrix schema constraints
  dt-bindings: power: Fix example for power-domain
  dt-bindings: arm: Add some constraints for PSCI nodes
  of: some unittest overlays not untracked
  of: gpio unittest kfree() wrong object
  dt-bindings: phy: convert phy-rockchip-inno-usb2 bindings to yaml
  dt-bindings: serial: sh-sci: Convert to json-schema
  dt-bindings: serial: Document serialN aliases
  dt-bindings: thermal: tsens: Set 'additionalProperties: false'
  dt-bindings: thermal: tsens: Fix nvmem-cell-names schema
  dt-bindings: vendor-prefixes: Add Beacon vendor prefix
  dt-bindings: vendor-prefixes: Add Topwise
  of: of_private.h: Replace zero-length array with flexible-array member
  docs: dt: fix a broken reference to input.yaml
  docs: dt: fix references to ap806-system-controller.txt
  ...
2020-04-02 17:32:52 -07:00
Frank Rowand 1adc86798f of: some unittest overlays not untracked
kernel test robot reported "WARNING: held lock freed!" triggered by
unittest_gpio_remove(), which should not have been called because
the related gpio overlay was not tracked.  Another overlay that
was tracked had previously used the same id as the gpio overlay
but had not been untracked when the overlay was removed.  Thus the
clean up function of_unittest_destroy_tracked_overlays() incorrectly
attempted to remove the reused overlay id.

Patch contents:

  - Create tracking related helper functions
  - Change BUG() to WARN_ON() for overlay id related issues
  - Add some additional error checking for valid overlay id values
  - Add the missing overlay untrack
  - update comment on expectation that overlay ids are assigned in
    sequence

Fixes: 492a22aceb ("of: unittest: overlay: Keep track of created overlays")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-03-31 15:57:58 -06:00
Frank Rowand fb227f597d of: gpio unittest kfree() wrong object
kernel test robot reported "WARNING: held lock freed!" triggered by
unittest_gpio_remove().  unittest_gpio_remove() was unexpectedly
called due to an error in overlay tracking.  The remove had not
been tested because the gpio overlay removal tests have not been
implemented.

kfree() gdev instead of pdev.

Fixes: f4056e705b ("of: unittest: add overlay gpio test to catch gpio hog problem")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-03-31 15:57:39 -06:00
Gustavo A. R. Silva f43775625e of: of_private.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-03-31 09:03:34 -06:00
Linus Torvalds 59838093be Merge tag 'driver-core-5.7-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 changes for 5.7-rc1.

  Nothing huge in here, just lots of little firmware core changes and
  use of new apis, a libfs fix, a debugfs api change, and some driver
  core deferred probe rework.

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

* tag 'driver-core-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (44 commits)
  Revert "driver core: Set fw_devlink to "permissive" behavior by default"
  driver core: Set fw_devlink to "permissive" behavior by default
  driver core: Replace open-coded list_last_entry()
  driver core: Read atomic counter once in driver_probe_done()
  libfs: fix infoleak in simple_attr_read()
  driver core: Add device links from fwnode only for the primary device
  platform/x86: touchscreen_dmi: Add info for the Chuwi Vi8 Plus tablet
  platform/x86: touchscreen_dmi: Add EFI embedded firmware info support
  Input: icn8505 - Switch to firmware_request_platform for retreiving the fw
  Input: silead - Switch to firmware_request_platform for retreiving the fw
  selftests: firmware: Add firmware_request_platform tests
  test_firmware: add support for firmware_request_platform
  firmware: Add new platform fallback mechanism and firmware_request_platform()
  Revert "drivers: base: power: wakeup.c: Use built-in RCU list checking"
  drivers: base: power: wakeup.c: Use built-in RCU list checking
  component: allow missing unbind callback
  debugfs: remove return value of debugfs_create_file_size()
  debugfs: Check module state before warning in {full/open}_proxy_open()
  firmware: fix a double abort case with fw_load_sysfs_fallback
  arch_topology: Fix putting invalid cpu clk
  ...
2020-03-30 13:59:52 -07:00
Saravana Kannan e94f62b714 of: property: Delete of_devlink kernel commandline option
With the addition of fw_devlink kernel commandline option, of_devlink is
redundant and not useful anymore. So, delete it.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20200222014038.180923-6-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-04 17:58:48 +01:00
Saravana Kannan bc749007ad of: property: Start using fw_devlink_get_flags()
The fw_devlink_get_flags() provides the right flags to use when creating
mandatory device links derived from information provided by the
firmware. So, use that.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20200222014038.180923-5-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-04 17:58:48 +01:00
Dajun Jin 209c65b61d drivers/of/of_mdio.c:fix of_mdiobus_register()
When registers a phy_device successful, should terminate the loop
or the phy_device would be registered in other addr. If there are
multiple PHYs without reg properties, it will go wrong.

Signed-off-by: Dajun Jin <adajunjin@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-03 19:01:51 -08:00
Luca Ceresoli a3958323f5 of: overlay: log the error cause on resolver failure
When a DT overlay has a node label that is not present in the live
devicetree symbols table, this error is printed:

  OF: resolver: overlay phandle fixup failed: -22
  create_overlay: Failed to create overlay (err=-22)

which does not help much in finding the node label that caused the problem
and fix the overlay source.

Add an error message with the name of the node label that caused the
error. The new output is:

  OF: resolver: node label 'gpio9' not found in live devicetree symbols table
  OF: resolver: overlay phandle fixup failed: -22
  create_overlay: Failed to create overlay (err=-22)

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-03-02 11:32:44 -06:00
Frank Rowand 485bb19d0b of: unittest: make gpio overlay test dependent on CONFIG_OF_GPIO
Randconfig testing found compile errors in drivers/of/unittest.c if
CONFIG_GPIOLIB is not set because CONFIG_OF_GPIO depends on
CONFIG_GPIOLIB.  Make the gpio overlay test depend on CONFIG_OF_GPIO.

No code is modified, it is only moved to a different location and
protected with #ifdef CONFIG_OF_GPIO.  An empty
of_unittest_overlay_gpio() is added in the #else.

Fixes: f4056e705b ("of: unittest: add overlay gpio test to catch gpio hog problem")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Rob Herring <robh@kernel.org>
2020-03-02 11:32:30 -06:00
Rob Herring 85e1f2217e Merge branch 'dt/ranges-rework' into dt/next 2020-02-27 14:38:03 -06:00
Frank Rowand 0ac1743979 of: unittest: annotate warnings triggered by unittest
Some tests in the devicetree unittests result in printk messages
from the code being tested.  It can be difficult to determine
whether the messages are the result of unittest or are potentially
reporting bugs that should be fixed.  The most recent example of
a person asking whether to be concerned about these messages is [1].

Add annotations for all messages triggered by unittests, except
KERN_DEBUG messages.  (KERN_DEBUG is a special case due to the
possible interaction of CONFIG_DYNAMIC_DEBUG.)

The format of the annotations is expected to change when unittests
are converted to use the kunit infrastructure when the broader
testing community has an opportunity to discuss the implementation
of annotations of test triggered messages.

[1] https://lore.kernel.org/r/6021ac63-b5e0-ed3d-f964-7c6ef579cd68@huawei.com

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-02-26 10:42:15 -06:00
Frank Rowand f4056e705b of: unittest: add overlay gpio test to catch gpio hog problem
Geert reports that gpio hog nodes are not properly processed when
the gpio hog node is added via an overlay reply and provides an
RFC patch to fix the problem [1].

Add a unittest that shows the problem.  Unittest will report "1 failed"
test before applying Geert's RFC patch and "0 failed" after applying
Geert's RFC patch.

[1] https://lore.kernel.org/linux-devicetree/20191230133852.5890-1-geert+renesas@glider.be/

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-02-26 10:42:04 -06:00
Saravana Kannan 2f7afc343d of: property: Add device link support for power-domains and hwlocks
Add support for creating device links out of more DT properties.

To: lkml <linux-kernel@vger.kernel.org>
To: John Stultz <john.stultz@linaro.org>
To: Rob Herring <robh@kernel.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Kevin Hilman <khilman@kernel.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Len Brown <len.brown@intel.com>
Cc: Todd Kjos <tkjos@google.com>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-pm@vger.kernel.org
Signed-off-by: Saravana Kannan <saravanak@google.com>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-02-26 09:50:54 -06:00
Patrick Daly 632c990840 of: of_reserved_mem: Increase limit on number of reserved regions
Certain SoCs need to support a large amount of reserved memory
regions. For example, Qualcomm's SM8150 SoC requires that 20
regions of memory be reserved for a variety of reasons (e.g.
loading a peripheral subsystem's firmware image into a
particular space).

When adding more reserved memory regions to cater to different
usecases, the remaining number of reserved memory regions--12
to be exact--becomes too small. Thus, double the existing
limit of reserved memory regions.

Signed-off-by: Patrick Daly <pdaly@codeaurora.org>
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-02-25 15:08:28 -06:00
Rob Herring 9d55bebd98 of/address: Support multiple 'dma-ranges' entries
Currently, the DMA offset and mask for a device are set based only on the
first 'dma-ranges' entry. We should really be using all the entries. The
kernel doesn't yet support multiple offsets and sizes, so the best we can
do is to find the biggest size for a single offset. The algorithm is
copied from acpi_dma_get_range().

If there's different offsets from the first entry, then we warn and
continue. It really should be an error, but this will likely break
existing DTs.

Signed-off-by: Rob Herring <robh@kernel.org>
2020-02-14 15:27:08 -06:00
Rob Herring 7a8b64d17e of/address: use range parser for of_dma_get_range
of_dma_get_range() does the same ranges parsing as
of_pci_range_parser_one(), so let's refactor of_dma_get_range() to use
it instead.

This commit is no functional change. Subsequent commits will parse more
than the 1st dma-ranges entry.

Signed-off-by: Rob Herring <robh@kernel.org>
2020-02-14 15:20:07 -06:00
Rob Herring bc5e522ec4 of/address: Rework of_pci_range parsing for non-PCI buses
The only PCI specific part of of_pci_range_parser_one() is the handling
of the 3rd address cell. Rework it to work on regular 1 and 2 cell
addresses.

Use defines and a union to avoid a treewide renaming of the parsing
helpers and struct.

Signed-off-by: Rob Herring <robh@kernel.org>
2020-02-14 14:25:26 -06:00
Rob Herring c67f3df88f of: Drop struct of_pci_range.pci_space field
There's no more users of struct of_pci_range.pci_space field, so remove it.

Signed-off-by: Rob Herring <robh@kernel.org>
2020-02-14 14:25:25 -06:00
Rob Herring 67ccd2b97d of/address: Move range parser code out of CONFIG_PCI
In preparation to make the range parsing code work for non-PCI buses,
move the parsing functions out from the CONFIG_PCI #ifdef.

Signed-off-by: Rob Herring <robh@kernel.org>
2020-02-13 18:00:41 -06:00
Linus Torvalds eab3540562 Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC-related driver updates from Olof Johansson:
 "Various driver updates for platforms:

   - Nvidia: Fuse support for Tegra194, continued memory controller
     pieces for Tegra30

   - NXP/FSL: Refactorings of QuickEngine drivers to support
     ARM/ARM64/PPC

   - NXP/FSL: i.MX8MP SoC driver pieces

   - TI Keystone: ring accelerator driver

   - Qualcomm: SCM driver cleanup/refactoring + support for new SoCs.

   - Xilinx ZynqMP: feature checking interface for firmware. Mailbox
     communication for power management

   - Overall support patch set for cpuidle on more complex hierarchies
     (PSCI-based)

  and misc cleanups, refactorings of Marvell, TI, other platforms"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (166 commits)
  drivers: soc: xilinx: Use mailbox IPI callback
  dt-bindings: power: reset: xilinx: Add bindings for ipi mailbox
  drivers: soc: ti: knav_qmss_queue: Pass lockdep expression to RCU lists
  MAINTAINERS: Add brcmstb PCIe controller entry
  soc/tegra: fuse: Unmap registers once they are not needed anymore
  soc/tegra: fuse: Correct straps' address for older Tegra124 device trees
  soc/tegra: fuse: Warn if straps are not ready
  soc/tegra: fuse: Cache values of straps and Chip ID registers
  memory: tegra30-emc: Correct error message for timed out auto calibration
  memory: tegra30-emc: Firm up hardware programming sequence
  memory: tegra30-emc: Firm up suspend/resume sequence
  soc/tegra: regulators: Do nothing if voltage is unchanged
  memory: tegra: Correct reset value of xusb_hostr
  soc/tegra: fuse: Add APB DMA dependency for Tegra20
  bus: tegra-aconnect: Remove PM_CLK dependency
  dt-bindings: mediatek: add MT6765 power dt-bindings
  soc: mediatek: cmdq: delete not used define
  memory: tegra: Add support for the Tegra194 memory controller
  memory: tegra: Only include support for enabled SoCs
  memory: tegra: Support DVFS on Tegra186 and later
  ...
2020-02-08 14:04:19 -08:00
Linus Torvalds 33b40134e5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:

 1) Use after free in rxrpc_put_local(), from David Howells.

 2) Fix 64-bit division error in mlxsw, from Nathan Chancellor.

 3) Make sure we clear various bits of TCP state in response to
    tcp_disconnect(). From Eric Dumazet.

 4) Fix netlink attribute policy in cls_rsvp, from Eric Dumazet.

 5) txtimer must be deleted in stmmac suspend(), from Nicolin Chen.

 6) Fix TC queue mapping in bnxt_en driver, from Michael Chan.

 7) Various netdevsim fixes from Taehee Yoo (use of uninitialized data,
    snapshot panics, stack out of bounds, etc.)

 8) cls_tcindex changes hash table size after allocating the table, fix
    from Cong Wang.

 9) Fix regression in the enforcement of session ID uniqueness in l2tp.
    We only have to enforce uniqueness for IP based tunnels not UDP
    ones. From Ridge Kennedy.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (46 commits)
  gtp: use __GFP_NOWARN to avoid memalloc warning
  l2tp: Allow duplicate session creation with UDP
  r8152: Add MAC passthrough support to new device
  net_sched: fix an OOB access in cls_tcindex
  qed: Remove set but not used variable 'p_link'
  tc-testing: add missing 'nsPlugin' to basic.json
  tc-testing: fix eBPF tests failure on linux fresh clones
  net: hsr: fix possible NULL deref in hsr_handle_frame()
  netdevsim: remove unused sdev code
  netdevsim: use __GFP_NOWARN to avoid memalloc warning
  netdevsim: use IS_ERR instead of IS_ERR_OR_NULL for debugfs
  netdevsim: fix stack-out-of-bounds in nsim_dev_debugfs_init()
  netdevsim: fix panic in nsim_dev_take_snapshot_write()
  netdevsim: disable devlink reload when resources are being used
  netdevsim: fix using uninitialized resources
  bnxt_en: Fix TC queue mapping.
  bnxt_en: Fix logic that disables Bus Master during firmware reset.
  bnxt_en: Fix RDMA driver failure with SRIOV after firmware reset.
  bnxt_en: Refactor logic to re-enable SRIOV after firmware reset detected.
  net: stmmac: Delete txtimer in suspend()
  ...
2020-02-04 13:32:20 +00:00
Masahiro Yamada 45586c7078 treewide: remove redundant IS_ERR() before error code check
'PTR_ERR(p) == -E*' is a stronger condition than IS_ERR(p).
Hence, IS_ERR(p) is unneeded.

The semantic patch that generates this commit is as follows:

// <smpl>
@@
expression ptr;
constant error_code;
@@
-IS_ERR(ptr) && (PTR_ERR(ptr) == - error_code)
+PTR_ERR(ptr) == - error_code
// </smpl>

Link: http://lkml.kernel.org/r/20200106045833.1725-1-masahiroy@kernel.org
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Acked-by: Stephen Boyd <sboyd@kernel.org> [drivers/clk/clk.c]
Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> [GPIO]
Acked-by: Wolfram Sang <wsa@the-dreams.de> [drivers/i2c]
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [acpi/scan.c]
Acked-by: Rob Herring <robh@kernel.org>
Cc: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-02-04 03:05:27 +00:00
Michael Walle 2e1bf3a765 net: mii_timestamper: fix static allocation by PHY driver
If phydev->mii_ts is set by the PHY driver, it will always be
overwritten in of_mdiobus_register_phy(). Fix it. Also make sure, that
the unregister() doesn't do anything if the mii_timestamper was provided by
the PHY driver.

Fixes: 1dca22b184 ("net: mdio: of: Register discovered MII time stampers.")
Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-01-31 07:46:11 -08:00
Michael Walle 0e0daf6ac3 net: mdio: of: fix potential NULL pointer derefernce
of_find_mii_timestamper() returns NULL if no timestamper is found.
Therefore, guard the unregister_mii_timestamper() calls.

Fixes: 1dca22b184 ("net: mdio: of: Register discovered MII time stampers.")
Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-01-31 07:46:11 -08:00