Commit Graph

848 Commits

Author SHA1 Message Date
Linus Torvalds
5339f9d4c2 DeviceTree updates for 4.5:
- Rework and export the changeset API to make it available to users
 other than DT overlays
 
 - ARM secure devices binding
 
 - OCTEON USB binding
 
 - Clean-up of various SRAM binding docs
 
 - Various other binding doc updates
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWltcqAAoJEPr7XbWNvGHDDYQP/RbA05cU+CsDpknLS8LgJvpP
 BfIT78AeBX38V4vWzl7lGU7cZAEhZG2oljNgPflKZ60g1XCFg6jDjHvt1oU9H+ri
 I2I6p5r0k4dXc37X7xYtg02RpGsIpFzyRbM5gRtkwe+TZhFIjsZQazLNIrL6oU8y
 0ZNDCheEUMq5oDadYraEWctfp3vNgSAzXlJ4I0IrXwb5hYBtBdAXKw5S3OPYl/m9
 lcvoMjw8i8KY97frElZ3DTjjOd11ZTA3L6kwmTdlgmRqUZAMTXVZJiwk787YLGpd
 6qjfOURa5/aefltXSS+SG3N6v9AeBgssRYtXy6s09/adqqv6ygSqgGPmxwxSgZOT
 gVqZ/ARhlvDlYIqPr6IfLhRLPZQ36GbPZOksMpZH0emQicu5+Uht+bYFFugDgs9f
 Zmwa59fmRIBvg10H6+SvaCSXKk3gRtovAdLOLO9HInarmCL7G1VfU1d8O/2fkPQY
 drHh/yS7fP91/DvxhN8Z2AKAURqv+BVZhmwGe36+Zucaph3yI8EAQSiypuGvxdHo
 e7U08hm1G1kmII38y+RyjqqXQFiXCLZ19QEcTTb1sPIwNfkuCc1rft0bGypqfIjw
 KK98TyG7eBAuf53zW8xRojGeYyku/w2GRsrGWdJrgVqghsy4INbBXkzLXDj14i7O
 BiPisfrIyAqViqWGI6eJ
 =LW4w
 -----END PGP SIGNATURE-----

Merge tag 'devicetree-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:

 - Rework and export the changeset API to make it available to users
   other than DT overlays

 - ARM secure devices binding

 - OCTEON USB binding

 - Clean-up of various SRAM binding docs

 - Various other binding doc updates

* tag 'devicetree-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (21 commits)
  drivers/of: Export OF changeset functions
  Fix documentation for adp1653 DT
  ARM: psci: Fix indentation in DT bindings
  of/platform: export of_default_bus_match_table
  of/unittest: Show broken behaviour in the platform bus
  of: fix declaration of of_io_request_and_map
  of/address: replace printk(KERN_ERR ...) with pr_err(...)
  of/irq: optimize device node matching loop in of_irq_init()
  dt-bindings: tda998x: Document the required 'port' node.
  net/macb: bindings doc: Merge cdns-emac to macb
  dt-bindings: Misc fix for the ATH79 DDR controllers
  dt-bindings: Misc fix for the ATH79 MISC interrupt controllers
  Documentation: dt: Add bindings for Secure-only devices
  dt-bindings: ARM: add arm,cortex-a72 compatible string
  ASoC: Atmel: ClassD: add GCK's parent clock in DT binding
  DT: add Olimex to vendor prefixes
  Documentation: fsl-quadspi: Add fsl,ls1021-qspi compatible string
  Documentation/devicetree: document OCTEON USB bindings
  usb: misc: usb3503: Describe better how to bind clock to the hub
  dt-bindings: Consolidate SRAM bindings from all vendors
  ...
2016-01-14 11:13:28 -08:00
Gavin Shan
183223770a drivers/of: Export OF changeset functions
The PowerNV PCI hotplug driver is going to use the OF changeset
to manage the changed device sub-tree. This exports those OF
changeset functions for that.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-01-13 16:10:37 -06:00
Dan Carpenter
1bc16addc0 mdio: remove an unneed condition
It used to be that mdio->irq was a pointer but after e7f4dc3536
('mdio: Move allocation of interrupts into core') it's an array inside
the mdio struct so it can never be NULL.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-12 11:51:57 -05:00
Andrew Lunn
a9049e0c51 mdio: Add support for mdio drivers.
Not all devices on an MDIO bus are PHYs. Meaning not all MDIO drivers
are PHY drivers. Add support for generic MDIO drivers.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-07 14:31:27 -05:00
Andrew Lunn
7f854420fb phy: Add API for {un}registering an mdio device to a bus.
Rather than have drivers directly manipulate the mii_bus structure,
provide and API for registering and unregistering devices on an MDIO
bus, and performing lookups.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-07 14:31:26 -05:00
Andrew Lunn
801a8ef54e of: phy: Only register a phy device for phys
We will soon support devices other than phys on the mdio bus. Look at
a child's compatibility string to determine if it is a phy, before
registering a phy device.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-07 14:31:26 -05:00
Andrew Lunn
e5a03bfd87 phy: Add an mdio_device structure
Not all devices attached to an MDIO bus are phys. So add an
mdio_device structure to represent the generic parts of an mdio
device, and place this structure into the phy_device.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-07 14:31:26 -05:00
Andrew Lunn
e7f4dc3536 mdio: Move allocation of interrupts into core
Have mdio_alloc() create the array of interrupt numbers, and
initialize it to POLLING. This is what most MDIO drivers want, so
allowing code to be removed from the drivers.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-07 14:31:26 -05:00
Masahiro Yamada
b80443c221 of/platform: export of_default_bus_match_table
Currently, drivers/bus/uniphier-system-bus.c is kept from being a
module due to the unresolved reference to of_default_bus_match_table.

Refer to commit 326ea45aa8 ("bus: uniphier: allow only built-in
driver").

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-01-05 09:20:44 -06:00
Grant Likely
d2329fb576 of/unittest: Show broken behaviour in the platform bus
Add a single resource to the test bus device to exercise the platform
bus code a little more. This isn't strictly a devicetree test, but it is
a corner case that the devicetree runs into. Until we've got platform
device unittests, it can live here. It doesn't need to be an explicit
text because the kernel will oops when it is wrong.

Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
[wsa: added the comment provided by Grant, rebased, and tested]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-01-05 09:20:40 -06:00
Masahiro Yamada
289582eac0 of/address: replace printk(KERN_ERR ...) with pr_err(...)
A trivial change suggested by checkpatch.pl.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-12-09 15:30:57 -06:00
Masahiro Yamada
264041e379 of/irq: optimize device node matching loop in of_irq_init()
Currently, of_irq_init() iterates over interrupt controller nodes
with for_each_matching_node(), and then gets each init function with
of_match_node() later.

This routine can be optimized with for_each_matching_node_and_match().
It allows to get the interrupt controller node and its init function
at the same time, saving __of_match_node() callings.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-12-09 15:30:57 -06:00
Carlo Caione
4c3141e09c of/irq: Export of_irq_find_parent again
of_irq_find_parent was made static since it had no users outside of
of_irq.c. Export it again since we are going to use it again.

Signed-off-by: Carlo Caione <carlo@endlessm.com>
[robh: move of_irq_find_parent to correct ifdef section]
Signed-off-by: Rob Herring <robh@kernel.org>
2015-12-09 09:08:36 -06:00
Guenter Roeck
f806238667 of/fdt: Add mutex protection for calls to __unflatten_device_tree()
__unflatten_device_tree() calls unflatten_dt_node(), which declares
a static variable. It is therefore not reentrant.

One of the callers of __unflatten_device_tree(), unflatten_device_tree(),
is only called once during early initialization and does not need to be
protected. The other caller, of_fdt_unflatten_tree(), can be called at
any time, possibly multiple times in parallel. This can happen, for
example, if multiple devicetree overlays have to be loaded and installed.

Without this protection, errors such as the following may be seen.

kernel: End of tree marker overwritten: e6a3a458
kernel: find_target_node:
	Failed to find target-indirect node at /fragment@0
kernel: __of_overlay_create: of_build_overlay_info() failed for tree@/

Add a mutex to of_fdt_unflatten_tree() to make the call reentrant.

Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org # v4.1+
Signed-off-by: Rob Herring <robh@kernel.org>
2015-12-08 09:50:42 -06:00
Masahiro Yamada
ba85edbe0d of/address: fix typo in comment block of of_translate_one()
Remove the "not" before "cannot".

I am fixing the comment block style while I am here.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-11-30 17:57:01 -06:00
Dmitry V. Krivenok
78bb2abe09 of: do not use 0x in front of %pa
Signed-off-by: Dmitry V. Krivenok <krivenok.dmitry@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-11-30 17:56:54 -06:00
Michael Ellerman
9eb8cd2b07 of: Fix comparison of reserved memory regions
In order to check for overlapping reserved memory regions, we first need
to sort the array of memory regions. This is implemented using sort(),
and a custom comparison function __rmem_cmp().

Unfortunatley __rmem_cmp() doesn't work in all cases. Because the two
base values are phys_addr_t, they may be u64 on some platforms, in which
case subtracting one from the other and then (implicitly) casting to int
does not give us the -ve/0/+ve value we need.

This leads to incorrect reports about overlaps, eg:

  ibm,slw-image@1ffe600000 (0x0000001ffe600000--0x0000001ffe700000) overlaps with
  ibm,firmware-allocs-memory@1000000000 (0x0000001000000000--0x0000001000dc0200)

Fix it by just doing the standard double if and return 0 logic.

Fixes: ae1add247b ("of: Check for overlap in reserved memory regions")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-11-30 17:56:44 -06:00
Linus Torvalds
be23c9d20b More power management and ACPI updates for v4.4-rc1
- Support for the ACPI _CCA configuration object intended to tell
    the OS whether or not a bus master device supports hardware
    managed cache coherency and a new set of functions to allow
    drivers to check the cache coherency support for devices in a
    platform firmware interface agnostic way (Suravee Suthikulpanit,
    Jeremy Linton).
 
  - ACPI backlight quirks for ESPRIMO Mobile M9410 and Dell XPS L421X
    (Aaron Lu, Hans de Goede).
 
  - Fixes for the arm_big_little and s5pv210-cpufreq cpufreq drivers
    (Jon Medhurst, Nicolas Pitre).
 
  - kfree()-related fixup for the recently introduced CPPC cpufreq
    frontend (Markus Elfring).
 
  - intel_pstate fix reducing kernel log noise on systems where
    P-states are managed by hardware (Prarit Bhargava).
 
  - intel_pstate maintainers information update (Srinivas Pandruvada).
 
  - cpufreq core optimization related to the handling of delayed work
    items used by governors (Viresh Kumar).
 
  - Locking fixes and cleanups of the Operating Performance Points
    (OPP) framework (Viresh Kumar).
 
  - Generic power domains framework cleanups (Lina Iyer).
 
  - cpupower tool updates (Jacob Tanenbaum, Sriram Raghunathan,
    Thomas Renninger).
 
  - turbostat tool updates (Len Brown).
 
 /
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABCAAGBQJWQ96OAAoJEILEb/54YlRxyYYQALJ1HXu76SvYX1re2aawOw6Y
 WgzF3Ly7JX034E1VvA2xP6wgkWpBRBDcpnRDeltNA4dYXPBDei/eTcRZTLX12N3g
 AfFRGjGWTtLJfpNPecNMmUyF5xHjgDgMIQRabY+Is5NfP5STkPHJeqULnEpvTtx8
 bd0lnC5jc4vuZiPEh1xVb+ClYDqWS8YQPyFJVjV/BaIf8Qwe5+oRX36byMBaKc9D
 ZgmvmCk5n/HLQQ1uQsqe4xnhFLHN2rypt2BLvFrOtlnSz9VNNpQyB+OIW1mgCD4f
 LhpKIwjP8NhZNQUq8HFu7nDlm8ciQtWmeMPB5NdGQ+OESu7yfKAOzQ+3U6Gl2Gaf
 66zVGyV6SOJJwfDVJ3qKTtroWps9QV7ZClOJ+zJGgiujwU+tJ3pDQyZM9pa7CL3C
 s7ZAUsI6IigSBjD3nJVOyG4DO0a8KQFCIE1mDmyqId45Qz8xJoOrYP33/ZnDuOdo
 2OtL/emyfWsz9ixbHVfwIhb7EC6aoaUxQrhSWmNraaQS43YfioZR7h4we8gwenph
 X4E1KY4SdML+uFf2VKIcd45NM3IBprCxx5UgFAJdrqe8+otqPNF2AVosG4iqhg/b
 k4nxwuIvw2a8Fm77U9ytyXDYMItU/wIlAHMbnmgx+oTwRv6AbZ07MHkyfuQLYuhD
 tq5Y14qSiTS7prNacx98
 =XZiP
 -----END PGP SIGNATURE-----

Merge tag 'pm+acpi-4.4-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management and ACPI updates from Rafael Wysocki:
 "The only new feature in this batch is support for the ACPI _CCA device
  configuration object, which it a pre-requisite for future ACPI PCI
  support on ARM64, but should not affect the other architectures.

  The rest is fixes and cleanups, mostly in cpufreq (including
  intel_pstate), the Operating Performace Points (OPP) framework and
  tools (cpupower and turbostat).

  Specifics:

   - Support for the ACPI _CCA configuration object intended to tell the
     OS whether or not a bus master device supports hardware managed
     cache coherency and a new set of functions to allow drivers to
     check the cache coherency support for devices in a platform
     firmware interface agnostic way (Suravee Suthikulpanit, Jeremy
     Linton).

   - ACPI backlight quirks for ESPRIMO Mobile M9410 and Dell XPS L421X
     (Aaron Lu, Hans de Goede).

   - Fixes for the arm_big_little and s5pv210-cpufreq cpufreq drivers
     (Jon Medhurst, Nicolas Pitre).

   - kfree()-related fixup for the recently introduced CPPC cpufreq
     frontend (Markus Elfring).

   - intel_pstate fix reducing kernel log noise on systems where
     P-states are managed by hardware (Prarit Bhargava).

   - intel_pstate maintainers information update (Srinivas Pandruvada).

   - cpufreq core optimization related to the handling of delayed work
     items used by governors (Viresh Kumar).

   - Locking fixes and cleanups of the Operating Performance Points
     (OPP) framework (Viresh Kumar).

   - Generic power domains framework cleanups (Lina Iyer).

   - cpupower tool updates (Jacob Tanenbaum, Sriram Raghunathan, Thomas
     Renninger).

   - turbostat tool updates (Len Brown)"

* tag 'pm+acpi-4.4-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
  PCI: ACPI: Add support for PCI device DMA coherency
  PCI: OF: Move of_pci_dma_configure() to pci_dma_configure()
  of/pci: Fix pci_get_host_bridge_device leak
  device property: ACPI: Remove unused DMA APIs
  device property: ACPI: Make use of the new DMA Attribute APIs
  device property: Adding DMA Attribute APIs for Generic Devices
  ACPI: Adding DMA Attribute APIs for ACPI Device
  device property: Introducing enum dev_dma_attr
  ACPI: Honor ACPI _CCA attribute setting
  cpufreq: CPPC: Delete an unnecessary check before the function call kfree()
  PM / OPP: Add opp_rcu_lockdep_assert() to _find_device_opp()
  PM / OPP: Hold dev_opp_list_lock for writers
  PM / OPP: Protect updates to list_dev with mutex
  PM / OPP: Propagate error properly from dev_pm_opp_set_sharing_cpus()
  cpufreq: s5pv210-cpufreq: fix wrong do_div() usage
  MAINTAINERS: update for intel P-state driver
  Creating a common structure initialization pattern for struct option
  cpupower: Enable disabled Cstates if they are below max latency
  cpupower: Remove debug message when using cpupower idle-set -D switch
  cpupower: cpupower monitor reports uninitialized values for offline cpus
  ...
2015-11-12 11:50:33 -08:00
Linus Torvalds
b4a237598a DeviceTree fixes for 4.4-rc1:
- Add empty of_translate_address needed for HiSilicon network driver.
 
 - Fix alignment requirements for CMA regions in DT.
 
 - Fix booting on PPC systems which can't do WARN() early.
 
 - Rename ak4554 binding doc from .c to .txt.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWQ6lzAAoJEPr7XbWNvGHDjLUP/24TJ5Pv9oTvyu08MFDUl4K7
 +DzIpy1+FcxCkx7JIvtpgxr6e8hQm0qSOvDY7/TiYL2EUZMaRTrm8AWnl5SKa4UH
 u1VJRBA9YbbBXwtpyUAqEQJGvEfjblfGnwmHP5FMTgV6RnrD9Tf9IHfBXrnel49P
 F8Kb30lO+Neye1NBKRxvjWTby6cjlusKTj+rtHRFBq7aW4Au9cLyuKJZFjE+4Ijz
 JEMtqh/BFklOM5j8bxByHEJv0my+S2bTbC57ZTO0nAtYJj0L1fWh/8i/x+2KL7qI
 dlXaIl1wz888loiXZG3jIFEz+XcCopQI0AEDd5wwIvaedqk3cxmgMgx2sLVJtJYU
 v87BFxw5sSqU44GSbCDRweN6fHhjotS+LDdz8Q4nWdkvFVYIFIEOeHZ1Vldmj3Xe
 4b3E4oJDo8j6/G1M+09qk0LUsHUT8XK+cXJZJfPoE+FXbgDifxObgIZLHccv0jbD
 bny0JWUZSknt3d1E3ZDROSbRLBdUGd9qEa/ueLjkDrjFCDbMwz3Ie1gtcNw1td7A
 Y6S4NVIW9DdQ1eK4jugoleSKhUVRv462Ksd8aAPiQXms+KqOhjMWj1NgOikMBdVE
 pybk11lnwRyCTvXo6eXrMxFyTM+DjgAk8fk/4emUJwdyqCkmqUm5Yny0NOiA7WxM
 pQtDdSpK7ZEqbdLfHLpF
 =Q7M4
 -----END PGP SIGNATURE-----

Merge tag 'devicetree-fixes-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree fixes from Rob Herring:

 - Add empty of_translate_address needed for HiSilicon network driver.

 - Fix alignment requirements for CMA regions in DT.

 - Fix booting on PPC systems which can't do WARN() early.

 - Rename ak4554 binding doc from .c to .txt.

* tag 'devicetree-fixes-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: Provide static inline function for of_translate_address if needed
  drivers: of: of_reserved_mem: fixup the alignment with CMA setup
  of: Print rather than WARN'ing when overlap check fails
  dt-bindings: ak4554: extension should be .txt
2015-11-11 19:54:05 -08:00
Jason Liu
1cc8e3458b drivers: of: of_reserved_mem: fixup the alignment with CMA setup
There is an alignment mismatch issue between the of_reserved_mem and
the CMA setup requirement. The of_reserved_mem will try to get the
alignment value from the DTS and pass it to __memblock_alloc_base to
do the memory block base allocation, but the alignment value specified
in the DTS may not satisfy the CAM setup requirement since CMA setup
required the alignment as the following in the code:

align = PAGE_SIZE << max(MAX_ORDER - 1, pageblock_order);

The sanity check in the function of rmem_cma_setup will fail if the
alignment does not setup correctly and thus CMA will fail to setup.

This patch is to fixup the alignment to meet the CMA setup required.

Mailing-list-thread: https://lkml.org/lkml/2015/11/9/138
Signed-off-by: Jason Liu <r64343@freescale.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2015-11-10 17:24:54 -06:00
Michael Ellerman
85a1c77fb8 of: Print rather than WARN'ing when overlap check fails
__rmem_check_for_overlap() is called very early in boot, and on some
powerpc systems it's not safe to call WARN that early in boot.

If the overlap check fails the system will oops instead of printing a
warning. Furthermore because it's so early in boot the console is not up
and the user doesn't see the oops, they just get a dead system.

Fix it by printing an error instead of calling WARN.

Fixes: ae1add247b ("of: Check for overlap in reserved memory regions")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-11-10 17:23:47 -06:00
Rafael J. Wysocki
f2115faaf0 Merge branch 'acpi-pci'
* acpi-pci:
  PCI: ACPI: Add support for PCI device DMA coherency
  PCI: OF: Move of_pci_dma_configure() to pci_dma_configure()
  of/pci: Fix pci_get_host_bridge_device leak
  device property: ACPI: Remove unused DMA APIs
  device property: ACPI: Make use of the new DMA Attribute APIs
  device property: Adding DMA Attribute APIs for Generic Devices
  ACPI: Adding DMA Attribute APIs for ACPI Device
  device property: Introducing enum dev_dma_attr
  ACPI: Honor ACPI _CCA attribute setting

Conflicts:
	drivers/crypto/ccp/ccp-platform.c
2015-11-07 01:30:10 +01:00
Suthikulpanit, Suravee
50230713b6 PCI: OF: Move of_pci_dma_configure() to pci_dma_configure()
This patch move of_pci_dma_configure() to a more generic
pci_dma_configure(), which can be extended by non-OF code (e.g. ACPI).

This has no functional change.

Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Acked-by: Rob Herring <robh+dt@kernel.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-11-07 01:29:22 +01:00
Suthikulpanit, Suravee
37efbe20fb of/pci: Fix pci_get_host_bridge_device leak
In case of error, the current code return w/o calling
pci_put_host_bridge_device. This patch fixes this.

Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-11-07 01:29:22 +01:00
Linus Torvalds
9bbd4b9f38 DeviceTree updates for 4.4:
- DT binding doc consolidation moving similar bindings to common
   locations. The majority of these are display related which were
   scattered in video/, fb/, drm/, gpu/, and panel/ directories.
 - Add new config option, CONFIG_OF_ALL_DTBS, to enable building all dtbs
   in the tree for most arches with dts files (except powerpc for now).
 - OF_IRQ=n fixes for user enabled CONFIG_OF.
 - of_node_put ref counting fixes from Julia Lawall.
 - Common DT binding for wakeup-source and deprecation of all similar
   bindings.
 - DT binding for PXA LCD controller.
 - Allow ignoring failed PCI resource translations in order to ignore
   64-bit addresses on non-LPAE 32-bit kernels.
 - Support setting the NUMA node from DT instead of only from parent
   device.
 - Couple of earlycon DT parsing fixes for address and options.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWO+HwAAoJEPr7XbWNvGHDFOoP/RcK4z5dtVQL2XRFbJBqRBZU
 riMc4BZkwpcKGXjzZlMrLw+mg4vaoLKSIAGAsYkgdDOKbYphQQdVwDzN099Fzpzy
 EE6K7Q+AW618z34AWdDjcpJYzSFnjAjYdh6JabohmKdPlxobR1RsKT+nRpDOGfeO
 c1DmxAQ1Fiav+xAI4m0YUuyxQDUeFYC0mVcVPzRbWZj31Ia5BgIrvT+V7fM55CTb
 dOAYWDHrfOw+yYI98sqZoSAb5H+E3UuY1ymBMhiP16Ot2vCyIKRYwhDokF9VYO/0
 MpIMhCgv1jmE5NCbBeYSSJUePySvvnuyYe6HIaJQjV8KGEZ5C7c1iLMgtvov2KVI
 bcSx6nPH/u5FuWIhWdMINPc50AQBAK/akYcgoCVjioVX+4WY2pqLvsXW2arEr//Z
 XY3FUpgS6eI42HBsj4SxrGnzaRc2jPOs6yiANkywmHnpWcyvszCxUEvf0Mh0cbkm
 diu31/owdpUO5imCe+ErtGVV3vY2VUMnbcm8J61pqL52OZNPLZUUEfktv1JCGW7y
 cVdnlgeGSFuCbY4jUErvxtQGJQLFwf7Gg1U/VfFXX2iuQGAACB1KwxY5sR6P5Ghz
 W6NvOTT36kaM9WGqn/bquOd6EmKcx9aZfgRLOkgV86Q/11gHKpuRjkrsth7rIJDI
 97qkGiWl4t1Ll5T4StK8
 =tGCy
 -----END PGP SIGNATURE-----

Merge tag 'devicetree-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:
 "A fairly large (by DT standards) pull request this time with the
  majority being some overdue moving DT binding docs around to
  consolidate similar bindings.

   - DT binding doc consolidation moving similar bindings to common
     locations.  The majority of these are display related which were
     scattered in video/, fb/, drm/, gpu/, and panel/ directories.

   - Add new config option, CONFIG_OF_ALL_DTBS, to enable building all
     dtbs in the tree for most arches with dts files (except powerpc for
     now).

   - OF_IRQ=n fixes for user enabled CONFIG_OF.

   - of_node_put ref counting fixes from Julia Lawall.

   - Common DT binding for wakeup-source and deprecation of all similar
     bindings.

   - DT binding for PXA LCD controller.

   - Allow ignoring failed PCI resource translations in order to ignore
     64-bit addresses on non-LPAE 32-bit kernels.

   - Support setting the NUMA node from DT instead of only from parent
     device.

   - Couple of earlycon DT parsing fixes for address and options"

* tag 'devicetree-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (45 commits)
  MAINTAINERS: update DT binding doc locations
  devicetree: add Sigma Designs vendor prefix
  of: simplify arch_find_n_match_cpu_physical_id() function
  Documentation: arm: Fixed typo in socfpga fpga mgr example
  Documentation: devicetree: fix reference to legacy wakeup properties
  Documentation: devicetree: standardize/consolidate on "wakeup-source" property
  drivers: of: removing assignment of 0 to static variable
  xtensa: enable building of all dtbs
  mips: enable building of all dtbs
  metag: enable building of all dtbs
  metag: use common make variables for dtb builds
  h8300: enable building of all dtbs
  arm64: enable building of all dtbs
  arm: enable building of all dtbs
  arc: enable building of all dtbs
  arc: use common make variables for dtb builds
  of: add config option to enable building of all dtbs
  of/fdt: fix error checking for earlycon address
  of/overlay: add missing of_node_put
  of/platform: add missing of_node_put
  ...
2015-11-06 12:17:09 -08:00
Linus Torvalds
3c87b79188 PCI changes for the v4.4 merge window:
Resource management
     Add support for Enhanced Allocation devices (Sean O. Stalley)
     Add Enhanced Allocation register entries (Sean O. Stalley)
     Handle IORESOURCE_PCI_FIXED when sizing resources (David Daney)
     Handle IORESOURCE_PCI_FIXED when assigning resources (David Daney)
     Handle Enhanced Allocation capability for SR-IOV devices (David Daney)
     Clear IORESOURCE_UNSET when reverting to firmware-assigned address (Bjorn Helgaas)
     Make Enhanced Allocation bitmasks more obvious (Bjorn Helgaas)
     Expand Enhanced Allocation BAR output (Bjorn Helgaas)
     Add of_pci_check_probe_only to parse "linux,pci-probe-only" (Marc Zyngier)
     Fix lookup of linux,pci-probe-only property (Marc Zyngier)
     Add sparc mem64 resource parsing for root bus (Yinghai Lu)
 
   PCI device hotplug
     pciehp: Queue power work requests in dedicated function (Guenter Roeck)
 
   Driver binding
     Add builtin_pci_driver() to avoid registration boilerplate (Paul Gortmaker)
 
   Virtualization
     Set SR-IOV NumVFs to zero after enumeration (Alexander Duyck)
     Remove redundant validation of SR-IOV offset/stride registers (Alexander Duyck)
     Remove VFs in reverse order if virtfn_add() fails (Alexander Duyck)
     Reorder pcibios_sriov_disable() (Alexander Duyck)
     Wait 1 second between disabling VFs and clearing NumVFs (Alexander Duyck)
     Fix sriov_enable() error path for pcibios_enable_sriov() failures (Alexander Duyck)
     Enable SR-IOV ARI Capable Hierarchy before reading TotalVFs (Ben Shelton)
     Don't try to restore VF BARs (Wei Yang)
 
   MSI
     Don't alloc pcibios-irq when MSI is enabled (Joerg Roedel)
     Add msi_controller setup_irqs() method for special multivector setup (Lucas Stach)
     Export all remapped MSIs to sysfs attributes (Romain Bezut)
     Disable MSI on SiS 761 (Ondrej Zary)
 
   AER
     Clear error status registers during enumeration and restore (Taku Izumi)
 
   Generic host bridge driver
     Fix lookup of linux,pci-probe-only property (Marc Zyngier)
     Allow multiple hosts with different map_bus() methods (David Daney)
     Pass starting bus number to pci_scan_root_bus() (David Daney)
     Fix address window calculation for non-zero starting bus (David Daney)
 
   Altera host bridge driver
     Add msi.h to ARM Kbuild (Ley Foon Tan)
     Add Altera PCIe host controller driver (Ley Foon Tan)
     Add Altera PCIe MSI driver (Ley Foon Tan)
 
   APM X-Gene host bridge driver
     Remove msi_controller assignment (Duc Dang)
 
   Broadcom iProc host bridge driver
     Fix header comment "Corporation" misspelling (Florian Fainelli)
     Fix code comment to match code (Ray Jui)
     Remove unused struct iproc_pcie.irqs[] (Ray Jui)
     Call pci_fixup_irqs() for ARM64 as well as ARM (Ray Jui)
     Fix PCIe reset logic (Ray Jui)
     Improve link detection logic (Ray Jui)
     Update PCIe device tree bindings (Ray Jui)
     Add outbound mapping support (Ray Jui)
 
   Freescale i.MX6 host bridge driver
     Return real error code from imx6_add_pcie_port() (Fabio Estevam)
     Add PCIE_PHY_RX_ASIC_OUT_VALID definition (Fabio Estevam)
 
   Freescale Layerscape host bridge driver
     Remove ls_pcie_establish_link() (Minghuan Lian)
     Ignore PCIe controllers in Endpoint mode (Minghuan Lian)
     Factor out SCFG related function (Minghuan Lian)
     Update ls_add_pcie_port() (Minghuan Lian)
     Remove unused fields from struct ls_pcie (Minghuan Lian)
     Add support for LS1043a and LS2080a (Minghuan Lian)
     Add ls_pcie_msi_host_init() (Minghuan Lian)
 
   HiSilicon host bridge driver
     Add HiSilicon SoC Hip05 PCIe driver (Zhou Wang)
 
   Marvell MVEBU host bridge driver
     Return zero for reserved or unimplemented config space (Russell King)
     Use exact config access size; don't read/modify/write (Russell King)
     Use of_get_available_child_count() (Russell King)
     Use for_each_available_child_of_node() to walk child nodes (Russell King)
     Report full node name when reporting a DT error (Russell King)
     Use port->name rather than "PCIe%d.%d" (Russell King)
     Move port parsing and resource claiming to  separate function (Russell King)
     Fix memory leaks and refcount leaks (Russell King)
     Split port parsing and resource claiming from  port setup (Russell King)
     Use gpio_set_value_cansleep() (Russell King)
     Use devm_kcalloc() to allocate an array (Russell King)
     Use gpio_desc to carry around gpio (Russell King)
     Improve clock/reset handling (Russell King)
     Add PCI Express root complex capability block (Russell King)
     Remove code restricting accesses to slot 0 (Russell King)
 
   NVIDIA Tegra host bridge driver
     Wrap static pgprot_t initializer with __pgprot() (Ard Biesheuvel)
 
   Renesas R-Car host bridge driver
     Build pci-rcar-gen2.c only on ARM (Geert Uytterhoeven)
     Build pcie-rcar.c only on ARM (Geert Uytterhoeven)
     Make PCI aware of the I/O resources (Phil Edworthy)
     Remove dependency on ARM-specific struct hw_pci (Phil Edworthy)
     Set root bus nr to that provided in DT (Phil Edworthy)
     Fix I/O offset for multiple host bridges (Phil Edworthy)
 
   ST Microelectronics SPEAr13xx host bridge driver
     Fix dw_pcie_cfg_read/write() usage (Gabriele Paoloni)
 
   Synopsys DesignWare host bridge driver
     Make "clocks" and "clock-names" optional DT properties (Bhupesh Sharma)
     Use exact access size in dw_pcie_cfg_read() (Gabriele Paoloni)
     Simplify dw_pcie_cfg_read/write() interfaces (Gabriele Paoloni)
     Require config accesses to be naturally aligned (Gabriele Paoloni)
     Make "num-lanes" an optional DT property (Gabriele Paoloni)
     Move calculation of bus addresses to DRA7xx (Gabriele Paoloni)
     Replace ARM pci_sys_data->align_resource with global function pointer (Gabriele Paoloni)
     Factor out MSI msg setup (Lucas Stach)
     Implement multivector MSI IRQ setup (Lucas Stach)
     Make get_msi_addr() return phys_addr_t, not u32 (Lucas Stach)
     Set up high part of MSI target address (Lucas Stach)
     Fix PORT_LOGIC_LINK_WIDTH_MASK (Zhou Wang)
     Revert "PCI: designware: Program ATU with untranslated address" (Zhou Wang)
     Use of_pci_get_host_bridge_resources() to parse DT (Zhou Wang)
     Make driver arch-agnostic (Zhou Wang)
 
   Miscellaneous
     Make x86 pci_subsys_init() static (Alexander Kuleshov)
     Turn off Request Attributes to avoid Chelsio T5 Completion erratum (Hariprasad Shenai)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWPM9aAAoJEFmIoMA60/r89f8QALFMHegqKk5M08ZcCaG7unLF
 5U5t88y6KF/kNYF6HOqLQiHh79U3ToU5HdrNaAtutr0UnvgbFC2WulLqKYgLiq6Y
 YJnwR3EfgGmdG7DKAVAXq19+nc2hgTPAEe8sciU7HKlTbqQmGj6//y3sQULGNLx3
 zur0C33DCtrDgKDP7to273lkHO8Vl0YuLzyqwt0ePCMNcXR0h1dK8QxSTjuXBxaR
 c+T1V1Hw64MTxLz3xJd1/1ipy32u+9LnqqcdRz0zRq6qi48G9ch/i4Z6DHa8kTbj
 DUZrrTYKILQ2TcjcZSBmTueX11Z1Xa4/I/45sehIi6gVWL9qQbmGpt2E5YtFED+4
 GdcmBSbWG/qsNsabXk38uiM3ww7+ltXEOhTXbcK+EgjvIhE6gSK/plYG0fU9pybs
 AKViEXVdHoT1X0N1dLK12mq7kvDCQvShHn08lz97Q9YrZ32wv1Fnij6WVSbJvfWt
 DubtPtisVM+rVy+VTpOImNR9wO54lTmG5jK53yNqH7I20K89y1kqARlN9nMXMB1a
 2nQnwe9yWlsGj9gVNCn1KmyQSPOWjg+3Z+ekfwbxpca14s1AaN3Jm0N9Z61dXFoF
 y2ygoQtZ/z9BHr3quBpxXGt+aVUg2kcNw5GYeDYiALxXdJSObyzRrZ6HDb/zicU2
 ZH9hBj0ctXvucmy6I2mt
 =uZrt
 -----END PGP SIGNATURE-----

Merge tag 'pci-v4.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Resource management:
   - Add support for Enhanced Allocation devices (Sean O. Stalley)
   - Add Enhanced Allocation register entries (Sean O. Stalley)
   - Handle IORESOURCE_PCI_FIXED when sizing resources (David Daney)
   - Handle IORESOURCE_PCI_FIXED when assigning resources (David Daney)
   - Handle Enhanced Allocation capability for SR-IOV devices (David Daney)
   - Clear IORESOURCE_UNSET when reverting to firmware-assigned address (Bjorn Helgaas)
   - Make Enhanced Allocation bitmasks more obvious (Bjorn Helgaas)
   - Expand Enhanced Allocation BAR output (Bjorn Helgaas)
   - Add of_pci_check_probe_only to parse "linux,pci-probe-only" (Marc Zyngier)
   - Fix lookup of linux,pci-probe-only property (Marc Zyngier)
   - Add sparc mem64 resource parsing for root bus (Yinghai Lu)

  PCI device hotplug:
   - pciehp: Queue power work requests in dedicated function (Guenter Roeck)

  Driver binding:
   - Add builtin_pci_driver() to avoid registration boilerplate (Paul Gortmaker)

  Virtualization:
   - Set SR-IOV NumVFs to zero after enumeration (Alexander Duyck)
   - Remove redundant validation of SR-IOV offset/stride registers (Alexander Duyck)
   - Remove VFs in reverse order if virtfn_add() fails (Alexander Duyck)
   - Reorder pcibios_sriov_disable() (Alexander Duyck)
   - Wait 1 second between disabling VFs and clearing NumVFs (Alexander Duyck)
   - Fix sriov_enable() error path for pcibios_enable_sriov() failures (Alexander Duyck)
   - Enable SR-IOV ARI Capable Hierarchy before reading TotalVFs (Ben Shelton)
   - Don't try to restore VF BARs (Wei Yang)

  MSI:
   - Don't alloc pcibios-irq when MSI is enabled (Joerg Roedel)
   - Add msi_controller setup_irqs() method for special multivector setup (Lucas Stach)
   - Export all remapped MSIs to sysfs attributes (Romain Bezut)
   - Disable MSI on SiS 761 (Ondrej Zary)

  AER:
   - Clear error status registers during enumeration and restore (Taku Izumi)

  Generic host bridge driver:
   - Fix lookup of linux,pci-probe-only property (Marc Zyngier)
   - Allow multiple hosts with different map_bus() methods (David Daney)
   - Pass starting bus number to pci_scan_root_bus() (David Daney)
   - Fix address window calculation for non-zero starting bus (David Daney)

  Altera host bridge driver:
   - Add msi.h to ARM Kbuild (Ley Foon Tan)
   - Add Altera PCIe host controller driver (Ley Foon Tan)
   - Add Altera PCIe MSI driver (Ley Foon Tan)

  APM X-Gene host bridge driver:
   - Remove msi_controller assignment (Duc Dang)

  Broadcom iProc host bridge driver:
   - Fix header comment "Corporation" misspelling (Florian Fainelli)
   - Fix code comment to match code (Ray Jui)
   - Remove unused struct iproc_pcie.irqs[] (Ray Jui)
   - Call pci_fixup_irqs() for ARM64 as well as ARM (Ray Jui)
   - Fix PCIe reset logic (Ray Jui)
   - Improve link detection logic (Ray Jui)
   - Update PCIe device tree bindings (Ray Jui)
   - Add outbound mapping support (Ray Jui)

  Freescale i.MX6 host bridge driver:
   - Return real error code from imx6_add_pcie_port() (Fabio Estevam)
   - Add PCIE_PHY_RX_ASIC_OUT_VALID definition (Fabio Estevam)

  Freescale Layerscape host bridge driver:
   - Remove ls_pcie_establish_link() (Minghuan Lian)
   - Ignore PCIe controllers in Endpoint mode (Minghuan Lian)
   - Factor out SCFG related function (Minghuan Lian)
   - Update ls_add_pcie_port() (Minghuan Lian)
   - Remove unused fields from struct ls_pcie (Minghuan Lian)
   - Add support for LS1043a and LS2080a (Minghuan Lian)
   - Add ls_pcie_msi_host_init() (Minghuan Lian)

  HiSilicon host bridge driver:
   - Add HiSilicon SoC Hip05 PCIe driver (Zhou Wang)

  Marvell MVEBU host bridge driver:
   - Return zero for reserved or unimplemented config space (Russell King)
   - Use exact config access size; don't read/modify/write (Russell King)
   - Use of_get_available_child_count() (Russell King)
   - Use for_each_available_child_of_node() to walk child nodes (Russell King)
   - Report full node name when reporting a DT error (Russell King)
   - Use port->name rather than "PCIe%d.%d" (Russell King)
   - Move port parsing and resource claiming to  separate function (Russell King)
   - Fix memory leaks and refcount leaks (Russell King)
   - Split port parsing and resource claiming from  port setup (Russell King)
   - Use gpio_set_value_cansleep() (Russell King)
   - Use devm_kcalloc() to allocate an array (Russell King)
   - Use gpio_desc to carry around gpio (Russell King)
   - Improve clock/reset handling (Russell King)
   - Add PCI Express root complex capability block (Russell King)
   - Remove code restricting accesses to slot 0 (Russell King)

  NVIDIA Tegra host bridge driver:
   - Wrap static pgprot_t initializer with __pgprot() (Ard Biesheuvel)

  Renesas R-Car host bridge driver:
   - Build pci-rcar-gen2.c only on ARM (Geert Uytterhoeven)
   - Build pcie-rcar.c only on ARM (Geert Uytterhoeven)
   - Make PCI aware of the I/O resources (Phil Edworthy)
   - Remove dependency on ARM-specific struct hw_pci (Phil Edworthy)
   - Set root bus nr to that provided in DT (Phil Edworthy)
   - Fix I/O offset for multiple host bridges (Phil Edworthy)

  ST Microelectronics SPEAr13xx host bridge driver:
   - Fix dw_pcie_cfg_read/write() usage (Gabriele Paoloni)

  Synopsys DesignWare host bridge driver:
   - Make "clocks" and "clock-names" optional DT properties (Bhupesh Sharma)
   - Use exact access size in dw_pcie_cfg_read() (Gabriele Paoloni)
   - Simplify dw_pcie_cfg_read/write() interfaces (Gabriele Paoloni)
   - Require config accesses to be naturally aligned (Gabriele Paoloni)
   - Make "num-lanes" an optional DT property (Gabriele Paoloni)
   - Move calculation of bus addresses to DRA7xx (Gabriele Paoloni)
   - Replace ARM pci_sys_data->align_resource with global function pointer (Gabriele Paoloni)
   - Factor out MSI msg setup (Lucas Stach)
   - Implement multivector MSI IRQ setup (Lucas Stach)
   - Make get_msi_addr() return phys_addr_t, not u32 (Lucas Stach)
   - Set up high part of MSI target address (Lucas Stach)
   - Fix PORT_LOGIC_LINK_WIDTH_MASK (Zhou Wang)
   - Revert "PCI: designware: Program ATU with untranslated address" (Zhou Wang)
   - Use of_pci_get_host_bridge_resources() to parse DT (Zhou Wang)
   - Make driver arch-agnostic (Zhou Wang)

  Miscellaneous:
   - Make x86 pci_subsys_init() static (Alexander Kuleshov)
   - Turn off Request Attributes to avoid Chelsio T5 Completion erratum (Hariprasad Shenai)"

* tag 'pci-v4.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (94 commits)
  PCI: altera: Add Altera PCIe MSI driver
  PCI: hisi: Add HiSilicon SoC Hip05 PCIe driver
  PCI: layerscape: Add ls_pcie_msi_host_init()
  PCI: layerscape: Add support for LS1043a and LS2080a
  PCI: layerscape: Remove unused fields from struct ls_pcie
  PCI: layerscape: Update ls_add_pcie_port()
  PCI: layerscape: Factor out SCFG related function
  PCI: layerscape: Ignore PCIe controllers in Endpoint mode
  PCI: layerscape: Remove ls_pcie_establish_link()
  PCI: designware: Make "clocks" and "clock-names" optional DT properties
  PCI: designware: Make driver arch-agnostic
  ARM/PCI: Replace pci_sys_data->align_resource with global function pointer
  PCI: designware: Use of_pci_get_host_bridge_resources() to parse DT
  Revert "PCI: designware: Program ATU with untranslated address"
  PCI: designware: Move calculation of bus addresses to DRA7xx
  PCI: designware: Make "num-lanes" an optional DT property
  PCI: designware: Require config accesses to be naturally aligned
  PCI: designware: Simplify dw_pcie_cfg_read/write() interfaces
  PCI: designware: Use exact access size in dw_pcie_cfg_read()
  PCI: spear: Fix dw_pcie_cfg_read/write() usage
  ...
2015-11-06 11:29:53 -08:00
Linus Torvalds
e880e87488 driver core update for 4.4-rc1
Here's the "big" driver core updates for 4.4-rc1.  Primarily a bunch of
 debugfs updates, with a smattering of minor driver core fixes and
 updates as well.
 
 All have been in linux-next for a long time.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlY6ePQACgkQMUfUDdst+ymNTgCgpP0CZw57GpwF/Hp2L/lMkVeo
 Kx8AoKhEi4iqD5fdCQS9qTfomB+2/M6g
 =g7ZO
 -----END PGP SIGNATURE-----

Merge tag 'driver-core-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here's the "big" driver core updates for 4.4-rc1.  Primarily a bunch
  of debugfs updates, with a smattering of minor driver core fixes and
  updates as well.

  All have been in linux-next for a long time"

* tag 'driver-core-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  debugfs: Add debugfs_create_ulong()
  of: to support binding numa node to specified device in devicetree
  debugfs: Add read-only/write-only bool file ops
  debugfs: Add read-only/write-only size_t file ops
  debugfs: Add read-only/write-only x64 file ops
  debugfs: Consolidate file mode checks in debugfs_create_*()
  Revert "mm: Check if section present during memory block (un)registering"
  driver-core: platform: Provide helpers for multi-driver modules
  mm: Check if section present during memory block (un)registering
  devres: fix a for loop bounds check
  CMA: fix CONFIG_CMA_SIZE_MBYTES overflow in 64bit
  base/platform: assert that dev_pm_domain callbacks are called unconditionally
  sysfs: correctly handle short reads on PREALLOC attrs.
  base: soc: siplify ida usage
  kobject: move EXPORT_SYMBOL() macros next to corresponding definitions
  kobject: explain what kobject's sd field is
  debugfs: document that debugfs_remove*() accepts NULL and error values
  debugfs: Pass bool pointer to debugfs_create_bool()
  ACPI / EC: Fix broken 64bit big-endian users of 'global_lock'
2015-11-04 21:50:37 -08:00
Masahiro Yamada
510bd068db of: simplify arch_find_n_match_cpu_physical_id() function
This commit does not change the function behavior.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-30 13:04:19 -05:00
Saurabh Sengar
0b13ea8e26 drivers: of: removing assignment of 0 to static variable
no need to initialise static variable with 0, hence correcting it.

Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-30 12:04:36 -05:00
Rob Herring
25fff6aa32 Merge branch 'all-dtbs-v2' into for-next 2015-10-27 16:13:23 -05:00
Rob Herring
1b7c501b51 of: add config option to enable building of all dtbs
Enable building all dtb files when CONFIG_OF_ALL_DTBS is enabled. The dtbs
are not really dependent on a platform being enabled or any other kernel
config, so for testing coverage it is convenient to build all of the dtbs.

In order to only build dtbs, this option can be used by creating an
allno.config file containing:
CONFIG_COMPILE_TEST=y
CONFIG_OF=y
CONFIG_OF_ALL_DTBS=y

And then running:
make KCONFIG_ALLCONFIG=1 allnoconfig
make dtbs

While building the dtbs themselves don't need a cross compiler, the
scripts dependency does need one. This can be hacked around by
commenting out "subdir-y += mod" in scripts/Makefile.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Grant Likely <grant.likely@linaro.org>
2015-10-27 16:12:13 -05:00
Masahiro Yamada
3f5ceec964 of/fdt: fix error checking for earlycon address
fdt_translate_address() returns OF_BAD_ADDR on error.  It is defined as
a u64 value, so the variable "addr" should be defined as u64 as well.

Fixes: fb11ffe74c ("of/fdt: add FDT serial scanning for earlycon")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-27 15:52:29 -05:00
Julia Lawall
001cf5048e of/overlay: add missing of_node_put
for_each_child_of_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
expression root,e;
local idexpression child;
@@

 for_each_child_of_node(root, child) {
   ... when != of_node_put(child)
       when != e = child
(
   return child;
|
+  of_node_put(child);
?  return ...;
)
   ...
 }
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-22 09:35:51 -05:00
Julia Lawall
7fad948a7c of/platform: add missing of_node_put
for_each_child_of_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
local idexpression n;
expression root,e;
@@

 for_each_child_of_node(root,n) {
   ...
(
   of_node_put(n);
|
   e = n
|
+  of_node_put(n);
?  break;
)
   ...
 }
... when != n
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-22 09:26:44 -05:00
Julia Lawall
8363ccb917 of/irq: add missing of_node_put
for_each_matching_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
local idexpression n;
expression e;
identifier l;
@@

 for_each_matching_node(n,...) {
   ...
(
   of_node_put(n);
|
   e = n
|
+  of_node_put(n);
?  goto l;
)
   ...
 }
...
l: ... when != n
// </smpl>

Besides the issue found by the semantic patch, this code also stores the
device_node value in a list, which requires an of_node_get, and then cleans
up the list on exit from the function, which requires an of_node_put.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-22 09:26:32 -05:00
Julia Lawall
855ff2878e of/unittest: add missing of_node_put
for_each_child_of_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
expression root,e;
local idexpression child;
@@

 for_each_child_of_node(root, child) {
   ... when != of_node_put(child)
       when != e = child
(
   return child;
|
+  of_node_put(child);
?  return ...;
)
   ...
 }
// </smpl>

Combine the puts into code at the end of the function, for conciseness.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-22 09:26:28 -05:00
Rob Herring
f92ce7618f Merge branch 'dt-doc-cleanup' into for-next 2015-10-22 09:22:09 -05:00
Zhen Lei
56f2de81e0 of: to support binding numa node to specified device in devicetree
For now, in function device_add, the new device will be forced to
inherit the numa node of its parent. But this will override the device's
numa node which configured in devicetree.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 22:11:50 -07:00
Marc Zyngier
82b9b4243c of/irq: Use the msi-map property to provide device-specific MSI domain
While msi-parent is used to point to the MSI controller that
works for all the devices behind a root complex, it doesn't
allow configurations where each individual device can be routed
to a separate MSI controller.

The msi-map property provides this flexibility (and much more),
so let's add a utility function that parses it, and return the
corresponding MSI domain.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-10-16 13:07:15 +01:00
Marc Zyngier
a251b26334 of/irq: Split of_msi_map_rid to reuse msi-map lookup
The msi-map property is also used to identify the MSI controller
as a form of grown-up msi-parent property.

Looking it up is complicated enough, and since of_msi_map_rid
already implements this, let's turn it into an internal utility
function. We'll put that to good use later on.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-10-16 13:07:15 +01:00
Marc Zyngier
61c08240a1 of/irq: Use of_msi_get_domain instead of open-coded "msi-parent" parsing
Now that we have a function that implements the complexity of the
"msi-parent" property parsing, switch to that.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-10-16 13:07:13 +01:00
Marc Zyngier
48ae34fb39 of/irq: Add support code for multi-parent version of "msi-parent"
Since 126b16e2ad ("Docs: dt: add generic MSI bindings"),
the definition of "msi-parent" has evolved, while maintaining
some degree of compatibility. It can now express multiple MSI
controllers as parents, as well as some sideband data being
communicated to the controller.

This patch adds the parsing of the property, iterating over
the multiple parents until a suitable irqdomain is found.
It can also fallback to the original parsing if the old
binding is detected.

This support code gets used in the subsequent patches.

Suggested-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-10-16 13:07:13 +01:00
David Daney
8db02d8b40 of/irq: Add new function of_msi_map_rid()
The device tree property "msi-map" specifies how to create the PCI
requester id used in some MSI controllers.  Add a new function
of_msi_map_rid() that finds the msi-map property and applies its
translation to a given requester id.

Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-10-16 11:45:27 +01:00
Jonas Gorski
52493d4461 of/irq: make of_irq_find_parent static
of_irq_find_parent has no users outside of of_irq.c, so it does not make
sense to expose it in of_irq.h. Therefore remove the prototype and dummy
implmeentation and make the function static instead.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-13 13:34:32 -05:00
Stefan Agner
6296ad9e33 of/fdt: fix aliases with baudrate in earlycon
Many boards use an alias in the stdout-path specification along
with console options after a colon (e.g. serial0:115200n8). When
using earlycon, this specification currently does not work. While
fdt_path_offset supports alias resolution, it does not remove the
console options by itself. Use the fdt_path_offset_namelen variant
and provide the length of the alias to enable aliases with console
options in the stdout-path.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-13 13:31:26 -05:00
Pavel Fedin
f134f25162 PCI: of: Ignore resources with failed translation
This patch allows PCI host controller to function even if part of resources
is unusable for some reason. An example is non-LPAE kernel on a machine
which has some 64-bit resources. Unusable resources will be just skipped
instead of a complete failure.

Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-13 13:30:42 -05:00
Pavel Fedin
4af9710649 PCI: of: Add 64-bit address recognition without LPAE support
If non-LPAE kernel is booted up on a machine with 64-bit PCI resources,
PCI controller probe fails with:

PCI host bridge /pcie@10000000 ranges:
   IO 0x3eff0000..0x3effffff -> 0x00000000
  MEM 0x10000000..0x3efeffff -> 0x10000000
  MEM 0x8000000000..0xffffffffff -> 0x8000000000
pci-host-generic 3f000000.pcie: resource collision: [mem 0x00000000-0xffffffff] conflicts with /pl011@9000000 [mem 0x09000000-0x09000fff]
pci-host-generic: probe of 3f000000.pcie failed with error -16

This happens because res->start assignment in of_pci_range_to_resource()
truncates the upper part of the address, because res->start is of
phys_addr_t type, which is 32-bit on non-LPAE kernels.

This patch adds explicit recognition of 64-bit resources, preventing from
potential problems when e. g. 0x8000001234 would be converted to
0x00001234.

Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-10-13 13:30:37 -05:00
Linus Torvalds
518a7cb698 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) When we run a tap on netlink sockets, we have to copy mmap'd SKBs
    instead of cloning them.  From Daniel Borkmann.

 2) When converting classical BPF into eBPF, fix the setting of the
    source reg to BPF_REG_X.  From Tycho Andersen.

 3) Fix igmpv3/mldv2 report parsing in the bridge multicast code, from
    Linus Lussing.

 4) Fix dst refcounting for ipv6 tunnels, from Martin KaFai Lau.

 5) Set NLM_F_REPLACE flag properly when replacing ipv6 routes, from
    Roopa Prabhu.

 6) Add some new cxgb4 PCI device IDs, from Hariprasad Shenai.

 7) Fix headroom tests and SKB leaks in ipv6 fragmentation code, from
    Florian Westphal.

 8) Check DMA mapping errors in bna driver, from Ivan Vecera.

 9) Several 8139cp bug fixes (dev_kfree_skb_any in interrupt context,
    misclearing of interrupt status in TX timeout handler, etc.) from
    David Woodhouse.

10) In tipc, reset SKB header pointer after skb_linearize(), from Erik
    Hugne.

11) Fix autobind races et al. in netlink code, from Herbert Xu with
    help from Tejun Heo and others.

12) Missing SET_NETDEV_DEV in sunvnet driver, from Sowmini Varadhan.

13) Fix various races in timewait timer and reqsk_queue_hadh_req, from
    Eric Dumazet.

14) Fix array overruns in mac80211, from Johannes Berg and Dan
    Carpenter.

15) Fix data race in rhashtable_rehash_one(), from Dmitriy Vyukov.

16) Fix race between poll_one_napi and napi_disable, from Neil Horman.

17) Fix byte order in geneve tunnel port config, from John W Linville.

18) Fix handling of ARP replies over lightweight tunnels, from Jiri
    Benc.

19) We can loop when fib rule dumps cross multiple SKBs, fix from Wilson
    Kok and Roopa Prabhu.

20) Several reference count handling bug fixes in the PHY/MDIO layer
    from Russel King.

21) Fix lockdep splat in ppp_dev_uninit(), from Guillaume Nault.

22) Fix crash in icmp_route_lookup(), from David Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (116 commits)
  net: Fix panic in icmp_route_lookup
  net: update docbook comment for __mdiobus_register()
  ppp: fix lockdep splat in ppp_dev_uninit()
  net: via/Kconfig: GENERIC_PCI_IOMAP required if PCI not selected
  phy: marvell: add link partner advertised modes
  net: fix net_device refcounting
  phy: add phy_device_remove()
  phy: fixed-phy: properly validate phy in fixed_phy_update_state()
  net: fix phy refcounting in a bunch of drivers
  of_mdio: fix MDIO phy device refcounting
  phy: add proper phy struct device refcounting
  phy: fix mdiobus module safety
  net: dsa: fix of_mdio_find_bus() device refcount leak
  phy: fix of_mdio_find_bus() device refcount leak
  ip6_tunnel: Reduce log level in ip6_tnl_err() to debug
  ip6_gre: Reduce log level in ip6gre_err() to debug
  fib_rules: fix fib rule dumps across multiple skbs
  bnx2x: byte swap rss_key to comply to Toeplitz specs
  net: revert "net_sched: move tp->root allocation into fw_init()"
  lwtunnel: remove source and destination UDP port config option
  ...
2015-09-26 06:01:33 -04:00
Russell King
f018ae7a8c of_mdio: fix MDIO phy device refcounting
bus_find_device() is defined as:

 * This is similar to the bus_for_each_dev() function above, but it
 * returns a reference to a device that is 'found' for later use, as
 * determined by the @match callback.

and it does indeed return a reference-counted pointer to the device:

        while ((dev = next_device(&i)))
                if (match(dev, data) && get_device(dev))
                                        ^^^^^^^^^^^^^^^
                        break;
        klist_iter_exit(&i);
        return dev;

What that means is that when we're done with the struct device, we must
drop that reference.  Neither of_phy_connect() nor of_phy_attach() did
this when phy_connect_direct() or phy_attach_direct() failed.

With our previous patch, phy_connect_direct() and phy_attach_direct()
take a new refcount on the phy device when successful, so we can drop
our local reference immediatley after these functions, whether or not
they succeeded.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-24 23:04:52 -07:00
Mitchel Humpherys
ae1add247b of: Check for overlap in reserved memory regions
Any overlap in the reserved memory regions (those specified in the
reserved-memory DT node) is a bug.  These bugs might go undetected as
long as the contested region isn't used simultaneously by multiple
software agents, which makes such bugs hard to debug.  Fix this by
printing a scary warning during boot if overlap is detected.

Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-09-17 14:52:06 -05:00