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2017-11-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds1-12/+50
Pull networking updates from David Miller: "Highlights: 1) Maintain the TCP retransmit queue using an rbtree, with 1GB windows at 100Gb this really has become necessary. From Eric Dumazet. 2) Multi-program support for cgroup+bpf, from Alexei Starovoitov. 3) Perform broadcast flooding in hardware in mv88e6xxx, from Andrew Lunn. 4) Add meter action support to openvswitch, from Andy Zhou. 5) Add a data meta pointer for BPF accessible packets, from Daniel Borkmann. 6) Namespace-ify almost all TCP sysctl knobs, from Eric Dumazet. 7) Turn on Broadcom Tags in b53 driver, from Florian Fainelli. 8) More work to move the RTNL mutex down, from Florian Westphal. 9) Add 'bpftool' utility, to help with bpf program introspection. From Jakub Kicinski. 10) Add new 'cpumap' type for XDP_REDIRECT action, from Jesper Dangaard Brouer. 11) Support 'blocks' of transformations in the packet scheduler which can span multiple network devices, from Jiri Pirko. 12) TC flower offload support in cxgb4, from Kumar Sanghvi. 13) Priority based stream scheduler for SCTP, from Marcelo Ricardo Leitner. 14) Thunderbolt networking driver, from Amir Levy and Mika Westerberg. 15) Add RED qdisc offloadability, and use it in mlxsw driver. From Nogah Frankel. 16) eBPF based device controller for cgroup v2, from Roman Gushchin. 17) Add some fundamental tracepoints for TCP, from Song Liu. 18) Remove garbage collection from ipv6 route layer, this is a significant accomplishment. From Wei Wang. 19) Add multicast route offload support to mlxsw, from Yotam Gigi" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2177 commits) tcp: highest_sack fix geneve: fix fill_info when link down bpf: fix lockdep splat net: cdc_ncm: GetNtbFormat endian fix openvswitch: meter: fix NULL pointer dereference in ovs_meter_cmd_reply_start netem: remove unnecessary 64 bit modulus netem: use 64 bit divide by rate tcp: Namespace-ify sysctl_tcp_default_congestion_control net: Protect iterations over net::fib_notifier_ops in fib_seq_sum() ipv6: set all.accept_dad to 0 by default uapi: fix linux/tls.h userspace compilation error usbnet: ipheth: prevent TX queue timeouts when device not ready vhost_net: conditionally enable tx polling uapi: fix linux/rxrpc.h userspace compilation errors net: stmmac: fix LPI transitioning for dwmac4 atm: horizon: Fix irq release error net-sysfs: trigger netlink notification on ifalias change via sysfs openvswitch: Using kfree_rcu() to simplify the code openvswitch: Make local function ovs_nsh_key_attr_size() static openvswitch: Fix return value check in ovs_meter_cmd_features() ...
2017-11-15Merge tag 'devicetree-for-4.15' of ↵Linus Torvalds1-21/+24
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree updates from Rob Herring: "A bigger diffstat than usual with the kbuild changes and a tree wide fix in the binding documentation. Summary: - kbuild cleanups and improvements for dtbs - Code clean-up of overlay code and fixing for some long standing memory leak and race condition in applying overlays - Improvements to DT memory usage making sysfs/kobjects optional and skipping unflattening of disabled nodes. This is part of kernel tinification efforts. - Final piece of removing storing the full path for every DT node. The prerequisite conversion of printk's to use device_node format specifier happened in 4.14. - Sync with current upstream dtc. This brings additional checks to dtb compiling. - Binding doc tree wide removal of leading 0s from examples - RTC binding documentation adding missing devices and some consolidation of duplicated bindings - Vendor prefix documentation for nutsboard, Silicon Storage Technology, shimafuji, Tecon Microprocessor Technologies, DH electronics GmbH, Opal Kelly, and Next Thing" * tag 'devicetree-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (55 commits) dt-bindings: usb: add #phy-cells to usb-nop-xceiv dt-bindings: Remove leading zeros from bindings notation kbuild: handle dtb-y and CONFIG_OF_ALL_DTBS natively in Makefile.lib MIPS: dts: remove bogus bcm96358nb4ser.dtb from dtb-y entry kbuild: clean up *.dtb and *.dtb.S patterns from top-level Makefile .gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore .gitignore: sort normal pattern rules alphabetically dt-bindings: add vendor prefix for Next Thing Co. scripts/dtc: Update to upstream version v1.4.5-6-gc1e55a5513e9 of: dynamic: fix memory leak related to properties of __of_node_dup of: overlay: make pr_err() string unique of: overlay: pr_err from return NOTIFY_OK to overlay apply/remove of: overlay: remove unneeded check for NULL kbasename() of: overlay: remove a dependency on device node full_name of: overlay: simplify applying symbols from an overlay of: overlay: avoid race condition between applying multiple overlays of: overlay: loosen overly strict phandle clash check of: overlay: expand check of whether overlay changeset can be removed of: overlay: detect cases where device tree may become corrupt of: overlay: minor restructuring ...
2017-11-08of: add of_property_read_variable_* dummy helpersArnd Bergmann1-12/+50
Commit a67e9472da42 ("of: Add array read functions with min/max size limits") added a new interface for reading variable-length arrays from DT properties. One user was added in dsa recently and this causes a build error because that code can be built with CONFIG_OF disabled: net/dsa/dsa2.c: In function 'dsa_switch_parse_member_of': net/dsa/dsa2.c:678:7: error: implicit declaration of function 'of_property_read_variable_u32_array'; did you mean 'of_property_read_u32_array'? [-Werror=implicit-function-declaration] This adds a dummy functions for of_property_read_variable_u32_array() and a few others that had been missing here. I decided to move of_property_read_string() and of_property_read_string_helper() in the process to make it easier to compare the two sets of function prototypes to make sure they match. Fixes: 975e6e32215e ("net: dsa: rework switch parsing") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-18of: overlay: avoid race condition between applying multiple overlaysFrank Rowand1-3/+0
The process of applying an overlay consists of: - unflatten an overlay FDT (flattened device tree) into an EDT (expanded device tree) - fixup the phandle values in the overlay EDT to fit in a range above the phandle values in the live device tree - create the overlay changeset to reflect the contents of the overlay EDT - apply the overlay changeset, to modify the live device tree, potentially changing the maximum phandle value in the live device tree There is currently no protection against two overlay applies concurrently determining what range of phandle values are in use in the live device tree, and subsequently changing that range. Add a mutex to prevent multiple overlay applies from occurring simultaneously. Move of_resolve_phandles() into of_overlay_apply() so that it does not have to be duplicated by each caller of of_overlay_apply(). The test in of_resolve_phandles() that the overlay tree is detached is temporarily disabled so that old style overlay unittests do not fail. Signed-off-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Rob Herring <robh@kernel.org>
2017-10-18of: overlay: detect cases where device tree may become corruptFrank Rowand1-5/+5
When an attempt to apply an overlay changeset fails, an effort is made to revert any partial application of the changeset. When an attempt to remove an overlay changeset fails, an effort is made to re-apply any partial reversion of the changeset. The existing code does not check for failure to recover a failed overlay changeset application or overlay changeset revert. Add the missing checks and flag the devicetree as corrupt if the state of the devicetree can not be determined. Improve and expand the returned errors to more fully reflect the result of the effort to undo the partial effects of a failed attempt to apply or remove an overlay changeset. If the device tree might be corrupt, do not allow further attempts to apply or remove an overlay changeset. When creating an overlay changeset from an overlay device tree, add some additional warnings if the state of the overlay device tree is not as expected. Signed-off-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Rob Herring <robh@kernel.org>
2017-10-18of: overlay: rename identifiers to more reflect what they doFrank Rowand1-6/+6
This patch is aimed primarily at drivers/of/overlay.c, but those changes also have a small impact in a few other files. overlay.c is difficult to read and maintain. Improve readability: - Rename functions, types and variables to better reflect what they do and to be consistent with names in other places, such as the device tree overlay FDT (flattened device tree), and make the algorithms more clear - Use the same names consistently throughout the file - Update comments for name changes - Fix incorrect comments This patch is intended to not introduce any functional change. Signed-off-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Rob Herring <robh@kernel.org>
2017-10-16of: make kobject and bin_attribute support configurableRob Herring1-12/+10
Having device_nodes be kobjects is only needed if sysfs or OF_DYNAMIC is enabled. Otherwise, having a kobject in struct device_node is unnecessary bloat in minimal kernel configurations. Likewise, bin_attribute is only needed in struct property when sysfs is enabled, so we can make it configurable too. Tested-by: Nicolas Pitre <nico@linaro.org> Reviewed-by: Frank Rowand <frowand.list@gmail.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Rob Herring <robh@kernel.org>
2017-10-16of: wrap accesses to device_node kobjectRob Herring1-0/+2
In preparation to make kobject element in struct device_node optional, provide and use a macro to return the kobject pointer. The only user outside the DT core is the driver core. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Tested-by: Nicolas Pitre <nico@linaro.org> Reviewed-by: Frank Rowand <frowand.list@gmail.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Rob Herring <robh@kernel.org>
2017-10-16of: make struct property _flags field configurableRob Herring1-0/+4
Only Sparc and CONFIG_OF_DYNAMIC use the struct property._flags field, so make it conditional shrinking struct property a bit. Tested-by: Nicolas Pitre <nico@linaro.org> Reviewed-by: Frank Rowand <frowand.list@gmail.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Rob Herring <robh@kernel.org>
2017-10-16of: remove struct property.unique_id for FDTRob Herring1-0/+2
Only Sparc uses unique_id, so remove it for FDT builds and shrink struct property a bit making the unflattened DT less of a memory hog. Tested-by: Nicolas Pitre <nico@linaro.org> Reviewed-by: Frank Rowand <frowand.list@gmail.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Rob Herring <robh@kernel.org>
2017-10-14include/linux/of.h: provide of_n_{addr,size}_cells wrappers for !CONFIG_OFArnd Bergmann1-0/+10
The pci-rcar driver is enabled for compile tests, and this has shown that the driver cannot build without CONFIG_OF, following the inclusion of commit f8f2fe7355fb ("PCI: rcar: Use new OF interrupt mapping when possible"): drivers/pci/host/pcie-rcar.c: In function 'pci_dma_range_parser_init': drivers/pci/host/pcie-rcar.c:1039:2: error: implicit declaration of function 'of_n_addr_cells' [-Werror=implicit-function-declaration] parser->pna = of_n_addr_cells(node); ^ As pointed out by Ben Dooks and Geert Uytterhoeven, this is actually supposed to build fine, which we can achieve if we make the declaration of of_irq_parse_and_map_pci conditional on CONFIG_OF and provide an empty inline function otherwise, as we do for a lot of other of interfaces. This lets us build the rcar_pci driver again without CONFIG_OF for build testing. All platforms using this driver select OF, so this doesn't change anything for the users. [akpm@linux-foundation.org: be consistent with surrounding code] Link: http://lkml.kernel.org/r/20170911200805.3363318-1-arnd@arndb.de Fixes: c25da4778803 ("PCI: rcar: Add Renesas R-Car PCIe driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Frank Rowand <frank.rowand@sony.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Magnus Damm <damm@opensource.se> Cc: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-22device property: Get rid of struct fwnode_handle type fieldSakari Ailus1-2/+1
Instead of relying on the struct fwnode_handle type field, define fwnode_operations structs for all separate types of fwnodes. To find out the type, compare to the ops field to relevant ops structs. This change has two benefits: 1. it avoids adding the type field to each and every instance of struct fwnode_handle, thus saving memory and 2. makes the ops field the single factor that defines both the types of the fwnode as well as defines the implementation of its operations, decreasing the possibility of bugs when developing code dealing with fwnode internals. Suggested-by: Rob Herring <robh@kernel.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-07-11Merge tag 'devprop-4.13-rc1' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull device properties framework updates from Rafael Wysocki: "These mostly rearrange the device properties core code and add a few helper functions to it as a foundation for future work. Specifics: - Rearrange the core device properties code by moving the code specific to each supported platform configuration framework (ACPI, DT and build-in) into a separate file (Sakari Ailus). - Add helper functions for accessing device properties in a firmware-agnostic way (Sakari Ailus, Kieran Bingham)" * tag 'devprop-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: device property: Add fwnode_graph_get_port_parent device property: Add FW type agnostic fwnode_graph_get_remote_node device property: Introduce fwnode_device_is_available() device property: Move fwnode graph ops to firmware specific locations device property: Move FW type specific functionality to FW specific files ACPI: Constify argument to acpi_device_is_present()
2017-07-05Merge branch 'dt/property-move' into dt/nextRob Herring1-10/+20
2017-06-22device property: Move FW type specific functionality to FW specific filesSakari Ailus1-0/+2
The device and fwnode property API supports Devicetree, ACPI and pset properties. The implementation of this functionality for each firmware type was embedded in the fwnode property core. Move it out to firmware type specific locations, making it easier to maintain. Depends-on: ("of: Move OF property and graph API from base.c to property.c") Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-14of: Provide dummy of_device_compatible_match() for compile-testingGeert Uytterhoeven1-0/+6
Most of_device_*() functions have dummy versions for CONFIG_OF=n, but of_device_compatible_match() hasn't. Fix that to improve the ability to do compile-testing. Fixes: b9c13fe32faaa71c ("dt: Add of_device_compatible_match()") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rob Herring <robh@kernel.org>
2017-06-01of: Support const and non-const use for to_of_node()Sakari Ailus1-8/+12
Turn to_of_node() into a macro in order to support both const and non-const use. Additionally make the fwnode argument to is_of_node() const as well. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: Rob Herring <robh@kernel.org>
2017-06-01of: Make of_fwnode_handle() saferSakari Ailus1-1/+7
On the expense of a little bit more complexity in the of_fwnode_handle() macro, make the macro result in NULL in case its argument is NULL while still referencing it only once. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: Rob Herring <robh@kernel.org>
2017-05-05Merge tag 'powerpc-4.12-1' of ↵Linus Torvalds1-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: "Highlights include: - Larger virtual address space on 64-bit server CPUs. By default we use a 128TB virtual address space, but a process can request access to the full 512TB by passing a hint to mmap(). - Support for the new Power9 "XIVE" interrupt controller. - TLB flushing optimisations for the radix MMU on Power9. - Support for CAPI cards on Power9, using the "Coherent Accelerator Interface Architecture 2.0". - The ability to configure the mmap randomisation limits at build and runtime. - Several small fixes and cleanups to the kprobes code, as well as support for KPROBES_ON_FTRACE. - Major improvements to handling of system reset interrupts, correctly treating them as NMIs, giving them a dedicated stack and using a new hypervisor call to trigger them, all of which should aid debugging and robustness. - Many fixes and other minor enhancements. Thanks to: Alastair D'Silva, Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan, Aneesh Kumar K.V, Anshuman Khandual, Anton Blanchard, Balbir Singh, Ben Hutchings, Benjamin Herrenschmidt, Bhupesh Sharma, Chris Packham, Christian Zigotzky, Christophe Leroy, Christophe Lombard, Daniel Axtens, David Gibson, Gautham R. Shenoy, Gavin Shan, Geert Uytterhoeven, Guilherme G. Piccoli, Hamish Martin, Hari Bathini, Kees Cook, Laurent Dufour, Madhavan Srinivasan, Mahesh J Salgaonkar, Mahesh Salgaonkar, Masami Hiramatsu, Matt Brown, Matthew R. Ochs, Michael Neuling, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran, Pan Xinhui, Paul Mackerras, Rashmica Gupta, Russell Currey, Sukadev Bhattiprolu, Thadeu Lima de Souza Cascardo, Tobin C. Harding, Tyrel Datwyler, Uma Krishnan, Vaibhav Jain, Vipin K Parashar, Yang Shi" * tag 'powerpc-4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (214 commits) powerpc/64s: Power9 has no LPCR[VRMASD] field so don't set it powerpc/powernv: Fix TCE kill on NVLink2 powerpc/mm/radix: Drop support for CPUs without lockless tlbie powerpc/book3s/mce: Move add_taint() later in virtual mode powerpc/sysfs: Move #ifdef CONFIG_HOTPLUG_CPU out of the function body powerpc/smp: Document irq enable/disable after migrating IRQs powerpc/mpc52xx: Don't select user-visible RTAS_PROC powerpc/powernv: Document cxl dependency on special case in pnv_eeh_reset() powerpc/eeh: Clean up and document event handling functions powerpc/eeh: Avoid use after free in eeh_handle_special_event() cxl: Mask slice error interrupts after first occurrence cxl: Route eeh events to all drivers in cxl_pci_error_detected() cxl: Force context lock during EEH flow powerpc/64: Allow CONFIG_RELOCATABLE if COMPILE_TEST powerpc/xmon: Teach xmon oops about radix vectors powerpc/mm/hash: Fix off-by-one in comment about kernel contexts ids powerpc/pseries: Enable VFIO powerpc/powernv: Fix iommu table size calculation hook for small tables powerpc/powernv: Check kzalloc() return value in pnv_pci_table_alloc powerpc: Add arch/powerpc/tools directory ...
2017-04-03drivers/of/base.c: Add of_property_read_u64_indexAlistair Popple1-0/+3
There is of_property_read_u32_index but no u64 variant. This patch adds one similar to the u32 version for u64. Signed-off-by: Alistair Popple <alistair@popple.id.au> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-03-29of: Add of_fwnode_handle() to convert device nodes to fwnode_handleSakari Ailus1-0/+4
of_fwnode_handle() returns a struct fwnode_handle of the struct device_node. This may be used on the fwnode property API. Use a macro instead of a function in order to support const and non-const arguments. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-17of: base: add support to find the level of the last cacheSudeep Holla1-0/+1
It is useful to have helper function just to get the number of cache levels for a given logical cpu. We can obtain the same by just checking the level at which the last cache is present. This patch adds support to find the level of the last cache for a given cpu. It will be used on ARM64 platform where the device tree provides the information for the additional non-architected/transparent/external last level caches that are not integrated with the processors. Cc: Mark Rutland <mark.rutland@arm.com> Suggested-by: Rob Herring <robh+dt@kernel.org> Acked-by: Rob Herring <robh+dt@kernel.org> Tested-by: Tan Xiaojun <tanxiaojun@huawei.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> [will: use u32 instead of int for cache_level] Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-11-10of/overlay: add of overlay notificationsAlan Tull1-0/+25
This patch add of overlay notifications. When DT overlays are being added, some drivers/subsystems need to see device tree overlays before the changes go into the live tree. This is distinct from reconfig notifiers that are post-apply or post-remove and which issue very granular notifications without providing access to the context of a whole overlay. The following 4 notificatons are issued: OF_OVERLAY_PRE_APPLY OF_OVERLAY_POST_APPLY OF_OVERLAY_PRE_REMOVE OF_OVERLAY_POST_REMOVE In the case of pre-apply notification, if the notifier returns error, the overlay will be rejected. This patch exports two functions for registering/unregistering notifications: of_overlay_notifier_register(struct notifier_block *nb) of_overlay_notifier_unregister(struct notifier_block *nb) The of_mutex is held during these notifications. The notification data includes pointers to the overlay target and the overlay: struct of_overlay_notify_data { struct device_node *overlay; struct device_node *target; }; Signed-off-by: Alan Tull <atull@opensource.altera.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Moritz Fischer <moritz.fischer@ettus.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-15of: Add array read functions with min/max size limitsRichard Fitzgerald1-12/+132
Add a new set of array reading functions that take a minimum and maximum size limit and will fail if the property size is not within the size limits. This makes it more convenient for drivers that use variable-size DT arrays which must be bounded at both ends - data must be at least N entries but must not overflow the array it is being copied into. It is also more efficient than making this functionality out of existing public functions and avoids duplication. The existing array functions have been left in the API, since there are a very large number of clients of those functions and their existing functionality is still useful. This avoids turning a small API improvement into a major kernel rework. The old functions have been turned into mininmal static inlines calling the new functions. The old functions had no upper limit on the actual size of the dts entry, to preserve this functionality rather than keeping two near-identical implementations, if the new function is called with max=0 there is no limit on the size of the dts entry but only the min number of elements are read. Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Signed-off-by: Rob Herring <robh@kernel.org>
2016-07-31Merge tag 'sound-4.8-rc1' of ↵Linus Torvalds1-7/+7
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "The majority of this update is about ASoC, including a few new drivers, and the rest are mostly minor changes. The only substantial change in ALSA core is about the additional error handling in the compress-offload API. Below are highlights: - Add the error propagating support in compress-offload API - HD-audio: a usual Dell headset fixup, an Intel HDMI/DP fix, and the default mixer setup change ot turn off the loopback - Lots of updates for ASoC Intel drivers, mostly board support and bug fixing, and to the NAU8825 driver - Work on generalizing bits of simple-card to allow more code sharing with the Renesas rsrc-card (which can't use simple-card due to DPCM) - Removal of the Odroid X2 driver due to replacement with simple-card - Support for several new Mediatek platforms and associated boards - New ASoC drivers for Allwinner A10, Analog Devices ADAU7002, Broadcom Cygnus, Cirrus Logic CS35L33 and CS53L30, Maxim MAX8960 and MAX98504, Realtek RT5514 and Wolfson WM8758" * tag 'sound-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (278 commits) sound: oss: Use kernel_read_file_from_path() for mod_firmware_load() ASoC: Intel: Skylake: Delete an unnecessary check before the function call "release_firmware" ASoC: Intel: Skylake: Fix NULL Pointer exception in dynamic_debug. ASoC: samsung: Specify DMA channels through struct snd_dmaengine_pcm_config ASoC: samsung: Fix error paths in the I2S driver's probe() ASoC: cs53l30: Fix bit shift issue of TDM mode ASoC: cs53l30: Fix a bug for TDM slot location validation ASoC: rockchip: correct the spdif clk ALSA: echoaudio: purge contradictions between dimension matrix members and total number of members ASoC: rsrc-card: use asoc_simple_card_parse_card_name() ASoC: rsrc-card: use asoc_simple_dai instead of rsrc_card_dai ASoC: rsrc-card: use asoc_simple_card_parse_dailink_name() ASoC: simple-card: use asoc_simple_card_parse_card_name() ASoC: simple-card-utils: add asoc_simple_card_parse_card_name() ASoC: simple-card: use asoc_simple_card_parse_dailink_name() ASoC: simple-card-utils: add asoc_simple_card_set_dailink_name() ASoC: nau8825: drop redundant idiom when converting integer to boolean ASoC: nau8825: jack connection decision with different insertion logic ASoC: mediatek: Add HDMI dai-links to the mt8173-rt5650 machine driver ASoC: mediatek: mt2701: fix non static symbol warning ...
2016-07-31Merge tag 'powerpc-4.8-1' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: "Highlights: - PowerNV PCI hotplug support. - Lots more Power9 support. - eBPF JIT support on ppc64le. - Lots of cxl updates. - Boot code consolidation. Bug fixes: - Fix spin_unlock_wait() from Boqun Feng - Fix stack pointer corruption in __tm_recheckpoint() from Michael Neuling - Fix multiple bugs in memory_hotplug_max() from Bharata B Rao - mm: Ensure "special" zones are empty from Oliver O'Halloran - ftrace: Separate the heuristics for checking call sites from Michael Ellerman - modules: Never restore r2 for a mprofile-kernel style mcount() call from Michael Ellerman - Fix endianness when reading TCEs from Alexey Kardashevskiy - start rtasd before PCI probing from Greg Kurz - PCI: rpaphp: Fix slot registration for multiple slots under a PHB from Tyrel Datwyler - powerpc/mm: Add memory barrier in __hugepte_alloc() from Sukadev Bhattiprolu Cleanups & fixes: - Drop support for MPIC in pseries from Rashmica Gupta - Define and use PPC64_ELF_ABI_v2/v1 from Michael Ellerman - Remove unused symbols in asm-offsets.c from Rashmica Gupta - Fix SRIOV not building without EEH enabled from Russell Currey - Remove kretprobe_trampoline_holder from Thiago Jung Bauermann - Reduce log level of PCI I/O space warning from Benjamin Herrenschmidt - Add array bounds checking to crash_shutdown_handlers from Suraj Jitindar Singh - Avoid -maltivec when using clang integrated assembler from Anton Blanchard - Fix array overrun in ppc_rtas() syscall from Andrew Donnellan - Fix error return value in cmm_mem_going_offline() from Rasmus Villemoes - export cpu_to_core_id() from Mauricio Faria de Oliveira - Remove old symbols from defconfigs from Andrew Donnellan - Update obsolete comments in setup_32.c about entry conditions from Benjamin Herrenschmidt - Add comment explaining the purpose of setup_kdump_trampoline() from Benjamin Herrenschmidt - Merge the RELOCATABLE config entries for ppc32 and ppc64 from Kevin Hao - Remove RELOCATABLE_PPC32 from Kevin Hao - Fix .long's in tlb-radix.c to more meaningful from Balbir Singh Minor cleanups & fixes: - Andrew Donnellan, Anna-Maria Gleixner, Anton Blanchard, Benjamin Herrenschmidt, Bharata B Rao, Christophe Leroy, Colin Ian King, Geliang Tang, Greg Kurz, Madhavan Srinivasan, Michael Ellerman, Michael Ellerman, Stephen Rothwell, Stewart Smith. Freescale updates from Scott: - "Highlights include more 8xx optimizations, device tree updates, and MVME7100 support." PowerNV PCI hotplug from Gavin Shan: - PCI: Add pcibios_setup_bridge() - Override pcibios_setup_bridge() - Remove PCI_RESET_DELAY_US - Move pnv_pci_ioda_setup_opal_tce_kill() around - Increase PE# capacity - Allocate PE# in reverse order - Create PEs in pcibios_setup_bridge() - Setup PE for root bus - Extend PCI bridge resources - Make pnv_ioda_deconfigure_pe() visible - Dynamically release PE - Update bridge windows on PCI plug - Delay populating pdn - Support PCI slot ID - Use PCI slot reset infrastructure - Introduce pnv_pci_get_slot_id() - Functions to get/set PCI slot state - PCI/hotplug: PowerPC PowerNV PCI hotplug driver - Print correct PHB type names Power9 idle support from Shreyas B. Prabhu: - set power_save func after the idle states are initialized - Use PNV_THREAD_WINKLE macro while requesting for winkle - make hypervisor state restore a function - Rename idle_power7.S to idle_book3s.S - Rename reusable idle functions to hardware agnostic names - Make pnv_powersave_common more generic - abstraction for saving SPRs before entering deep idle states - Add platform support for stop instruction - cpuidle/powernv: Use CPUIDLE_STATE_MAX instead of MAX_POWERNV_IDLE_STATES - cpuidle/powernv: cleanup cpuidle-powernv.c - cpuidle/powernv: Add support for POWER ISA v3 idle states - Use deepest stop state when cpu is offlined Power9 PMU from Madhavan Srinivasan: - factor out power8 pmu macros and defines - factor out power8 pmu functions - factor out power8 __init_pmu code - Add power9 event list macros for generic and cache events - Power9 PMU support - Export Power9 generic and cache events to sysfs Power9 preliminary interrupt & PCI support from Benjamin Herrenschmidt: - Add XICS emulation APIs - Move a few exception common handlers to make room - Add support for HV virtualization interrupts - Add mechanism to force a replay of interrupts - Add ICP OPAL backend - Discover IODA3 PHBs - pci: Remove obsolete SW invalidate - opal: Add real mode call wrappers - Rename TCE invalidation calls - Remove SWINV constants and obsolete TCE code - Rework accessing the TCE invalidate register - Fallback to OPAL for TCE invalidations - Use the device-tree to get available range of M64's - Check status of a PHB before using it - pci: Don't try to allocate resources that will be reassigned Other Power9: - Send SIGBUS on unaligned copy and paste from Chris Smart - Large Decrementer support from Oliver O'Halloran - Load Monitor Register Support from Jack Miller Performance improvements from Anton Blanchard: - Avoid load hit store in __giveup_fpu() and __giveup_altivec() - Avoid load hit store in setup_sigcontext() - Remove assembly versions of strcpy, strcat, strlen and strcmp - Align hot loops of some string functions eBPF JIT from Naveen N. Rao: - Fix/enhance 32-bit Load Immediate implementation - Optimize 64-bit Immediate loads - Introduce rotate immediate instructions - A few cleanups - Isolate classic BPF JIT specifics into a separate header - Implement JIT compiler for extended BPF Operator Panel driver from Suraj Jitindar Singh: - devicetree/bindings: Add binding for operator panel on FSP machines - Add inline function to get rc from an ASYNC_COMP opal_msg - Add driver for operator panel on FSP machines Sparse fixes from Daniel Axtens: - make some things static - Introduce asm-prototypes.h - Include headers containing prototypes - Use #ifdef __BIG_ENDIAN__ #else for REG_BYTE - kvm: Clarify __user annotations - Pass endianness to sparse - Make ppc_md.{halt, restart} __noreturn MM fixes & cleanups from Aneesh Kumar K.V: - radix: Update LPCR HR bit as per ISA - use _raw variant of page table accessors - Compile out radix related functions if RADIX_MMU is disabled - Clear top 16 bits of va only on older cpus - Print formation regarding the the MMU mode - hash: Update SDR1 size encoding as documented in ISA 3.0 - radix: Update PID switch sequence - radix: Update machine call back to support new HCALL. - radix: Add LPID based tlb flush helpers - radix: Add a kernel command line to disable radix - Cleanup LPCR defines Boot code consolidation from Benjamin Herrenschmidt: - Move epapr_paravirt_early_init() to early_init_devtree() - cell: Don't use flat device-tree after boot - ge_imp3a: Don't use the flat device-tree after boot - mpc85xx_ds: Don't use the flat device-tree after boot - mpc85xx_rdb: Don't use the flat device-tree after boot - Don't test for machine type in rtas_initialize() - Don't test for machine type in smp_setup_cpu_maps() - dt: Add of_device_compatible_match() - Factor do_feature_fixup calls - Move 64-bit feature fixup earlier - Move 64-bit memory reserves to setup_arch() - Use a cachable DART - Move FW feature probing out of pseries probe() - Put exception configuration in a common place - Remove early allocation of the SMU command buffer - Move MMU backend selection out of platform code - pasemi: Remove IOBMAP allocation from platform probe() - mm/hash: Don't use machine_is() early during boot - Don't test for machine type to detect HEA special case - pmac: Remove spurrious machine type test - Move hash table ops to a separate structure - Ensure that ppc_md is empty before probing for machine type - Move 64-bit probe_machine() to later in the boot process - Move 32-bit probe() machine to later in the boot process - Get rid of ppc_md.init_early() - Move the boot time info banner to a separate function - Move setting of {i,d}cache_bsize to initialize_cache_info() - Move the content of setup_system() to setup_arch() - Move cache info inits to a separate function - Re-order the call to smp_setup_cpu_maps() - Re-order setup_panic() - Make a few boot functions __init - Merge 32-bit and 64-bit setup_arch() Other new features: - tty/hvc: Use IRQF_SHARED for OPAL hvc consoles from Sam Mendoza-Jonas - tty/hvc: Use opal irqchip interface if available from Sam Mendoza-Jonas - powerpc: Add module autoloading based on CPU features from Alastair D'Silva - crypto: vmx - Convert to CPU feature based module autoloading from Alastair D'Silva - Wake up kopald polling thread before waiting for events from Benjamin Herrenschmidt - xmon: Dump ISA 2.06 SPRs from Michael Ellerman - xmon: Dump ISA 2.07 SPRs from Michael Ellerman - Add a parameter to disable 1TB segs from Oliver O'Halloran - powerpc/boot: Add OPAL console to epapr wrappers from Oliver O'Halloran - Assign fixed PHB number based on device-tree properties from Guilherme G. Piccoli - pseries: Add pseries hotplug workqueue from John Allen - pseries: Add support for hotplug interrupt source from John Allen - pseries: Use kernel hotplug queue for PowerVM hotplug events from John Allen - pseries: Move property cloning into its own routine from Nathan Fontenot - pseries: Dynamic add entires to associativity lookup array from Nathan Fontenot - pseries: Auto-online hotplugged memory from Nathan Fontenot - pseries: Remove call to memblock_add() from Nathan Fontenot cxl: - Add set and get private data to context struct from Michael Neuling - make base more explicitly non-modular from Paul Gortmaker - Use for_each_compatible_node() macro from Wei Yongjun - Frederic Barrat - Abstract the differences between the PSL and XSL - Make vPHB device node match adapter's - Philippe Bergheaud - Add mechanism for delivering AFU driver specific events - Ignore CAPI adapters misplaced in switched slots - Refine slice error debug messages - Andrew Donnellan - static-ify variables to fix sparse warnings - PCI/hotplug: pnv_php: export symbols and move struct types needed by cxl - PCI/hotplug: pnv_php: handle OPAL_PCI_SLOT_OFFLINE power state - Add cxl_check_and_switch_mode() API to switch bi-modal cards - remove dead Kconfig options - fix potential NULL dereference in free_adapter() - Ian Munsie - Update process element after allocating interrupts - Add support for CAPP DMA mode - Fix allowing bogus AFU descriptors with 0 maximum processes - Fix allocating a minimum of 2 pages for the SPA - Fix bug where AFU disable operation had no effect - Workaround XSL bug that does not clear the RA bit after a reset - Fix NULL pointer dereference on kernel contexts with no AFU interrupts - powerpc/powernv: Split cxl code out into a separate file - Add cxl_slot_is_supported API - Enable bus mastering for devices using CAPP DMA mode - Move cxl_afu_get / cxl_afu_put to base - Allow a default context to be associated with an external pci_dev - Do not create vPHB if there are no AFU configuration records - powerpc/powernv: Add support for the cxl kernel api on the real phb - Add support for using the kernel API with a real PHB - Add kernel APIs to get & set the max irqs per context - Add preliminary workaround for CX4 interrupt limitation - Add support for interrupts on the Mellanox CX4 - Workaround PE=0 hardware limitation in Mellanox CX4 - powerpc/powernv: Fix pci-cxl.c build when CONFIG_MODULES=n selftests: - Test unaligned copy and paste from Chris Smart - Load Monitor Register Tests from Jack Miller - Cyril Bur - exec() with suspended transaction - Use signed long to read perf_event_paranoid - Fix usage message in context_switch - Fix generation of vector instructions/types in context_switch - Michael Ellerman - Use "Delta" rather than "Error" in normal output - Import Anton's mmap & futex micro benchmarks - Add a test for PROT_SAO" * tag 'powerpc-4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (263 commits) powerpc/mm: Parenthesise IS_ENABLED() in if condition tty/hvc: Use opal irqchip interface if available tty/hvc: Use IRQF_SHARED for OPAL hvc consoles selftests/powerpc: exec() with suspended transaction powerpc: Improve comment explaining why we modify VRSAVE powerpc/mm: Drop unused externs for hpte_init_beat[_v3]() powerpc/mm: Rename hpte_init_lpar() and move the fallback to a header powerpc/mm: Fix build break when PPC_NATIVE=n crypto: vmx - Convert to CPU feature based module autoloading powerpc: Add module autoloading based on CPU features powerpc/powernv/ioda: Fix endianness when reading TCEs powerpc/mm: Add memory barrier in __hugepte_alloc() powerpc/modules: Never restore r2 for a mprofile-kernel style mcount() call powerpc/ftrace: Separate the heuristics for checking call sites powerpc: Merge 32-bit and 64-bit setup_arch() powerpc/64: Make a few boot functions __init powerpc: Re-order setup_panic() powerpc: Re-order the call to smp_setup_cpu_maps() powerpc/32: Move cache info inits to a separate function powerpc/64: Move the content of setup_system() to setup_arch() ...
2016-07-25Merge remote-tracking branches 'asoc/topic/cs53l30', 'asoc/topic/cygnus', ↵Mark Brown1-7/+7
'asoc/topic/da7219' and 'asoc/topic/davinci' into asoc-next
2016-07-20dt: Add of_device_compatible_match()Benjamin Herrenschmidt1-0/+2
This provides an equivalent of of_fdt_match() for non-flat trees. This is more practical than matching an array of of_device_id structs when converting a bunch of existing users of of_fdt_match(). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-07Merge branch 'clockevents/4.8' of ↵Thomas Gleixner1-0/+3
http://git.linaro.org/people/daniel.lezcano/linux into timers/core Pull the clockevents/clocksource tree from Daniel Lezcano: - Convert the clocksource-probe init functions to return a value in order to prepare the consolidation of the drivers using the DT. It is a big patchset but went through 01.org (kbuild bot), linux next and kernel-ci (continuous integration) (Daniel Lezcano) - Fix a bad error handling by returning the right value for cadence_ttc (Christophe Jaillet) - Fix typo in the Kconfig for the Samsung pwm (Alexandre Belloni) - Change functions to static for armada-370-xp and digicolor (Ben Dooks) - Add support for the rk3399 SoC timer by adding bindings and a slight change in the base address. Take the opportunity to add the DYNIRQ flag (Huang Tao) - Fix endian accessors for the Samsung pwm timer (Matthew Leach) - Add Oxford Semiconductor RPS Dual Timer driver (Neil Armstrong) - Add a kernel parameter to swich on/off the event stream feature of the arch arm timer (Will Deacon)
2016-06-28of: Add a new macro to declare_of for one parameter function returning a valueDaniel Lezcano1-0/+3
The macro OF_DECLARE_1 expect a void (*func)(struct device_node *) while the OF_DECLARE_2 expect a int (*func)(struct device_node *, struct device_node *). The second one allows to pass an init function returning a value, which make possible to call the functions in the table and check the return value in order to catch at a higher level the errors and handle them from there instead of doing a panic in each driver (well at least this is the case for the clkevt). Unfortunately the OF_DECLARE_1 does not allow that and that lead to some code duplication and crappyness in the drivers. The OF_DECLARE_1 is used by all the clk drivers and the clocksource/clockevent drivers. It is not possible to do the change in one shot as we have to change all the init functions. The OF_DECLARE_2 specifies an init function prototype with two parameters with the node and its parent. The latter won't be used, ever, in the timer drivers. Introduce a OF_DECLARE_1_RET macro to be used, and hopefully we can smoothly and iteratively change the users of OF_DECLARE_1 to use the new macro instead. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Rob Herring <robh@kernel.org>
2016-06-26device property: Add function to search for named child of deviceAdam Thomson1-7/+7
For device nodes in both DT and ACPI, it possible to have named child nodes which contain properties (an existing example being gpio-leds). This adds a function to find a named child node for a device which can be used by drivers for property retrieval. For DT data node name matching, of_node_cmp() and similar functions are made available outside of CONFIG_OF block so the new function can reference these for DT and non-DT builds. For ACPI data node name matching, a helper function is also added which returns false if CONFIG_ACPI is not set, otherwise it performs a string comparison on the data node name. This avoids using the acpi_data_node struct for non CONFIG_ACPI builds, which would otherwise cause a build failure. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Acked-by: Sathyanarayana Nujella <sathyanarayana.nujella@intel.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-06-03of: add missing const for of_parse_phandle_with_args() in !CONFIG_OFKuninori Morimoto1-1/+1
commit 93c667ca2598bd84f1bd3f2fa176af69707699fe ("of: *node argument to of_parse_phandle_with_args should be const") changed to const for struct device node *np, but it cares CONFIG_OF case only, !CONFIG_OF case need it too. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Rob Herring <robh@kernel.org>
2016-05-21Merge tag 'devicetree-for-4.7' of ↵Linus Torvalds1-0/+56
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree updates from Rob Herring: - Rewrite of the unflattening code to avoid recursion and lessen the stack usage. - Rewrite of the phandle args parsing code to get rid of the fixed args size. This is needed for IOMMU code. - Sync to latest dtc which adds more dts style checking. These warnings are enabled with "W=1" compiles. - Tegra documentation updates related to the above warnings. - A bunch of spelling and other doc fixes. - Various vendor prefix additions. * tag 'devicetree-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (52 commits) devicetree: Add Creative Technology vendor id gpio: dt-bindings: add ibm,ppc4xx-gpio binding of/unittest: Remove unnecessary module.h header inclusion drivers/of: Fix build warning in populate_node() drivers/of: Fix depth when unflattening devicetree of: dynamic: changeset prop-update revert fix drivers/of: Export of_detach_node() drivers/of: Return allocated memory from of_fdt_unflatten_tree() drivers/of: Specify parent node in of_fdt_unflatten_tree() drivers/of: Rename unflatten_dt_node() drivers/of: Avoid recursively calling unflatten_dt_node() drivers/of: Split unflatten_dt_node() of: include errno.h in of_graph.h of: document refcount incrementation of of_get_cpu_node() Documentation: dt: soc: fix spelling mistakes Documentation: dt: power: fix spelling mistake Documentation: dt: pinctrl: fix spelling mistake Documentation: dt: opp: fix spelling mistake Documentation: dt: net: fix spelling mistakes Documentation: dt: mtd: fix spelling mistake ...
2016-05-17Merge tag 'arm64-upstream' of ↵Linus Torvalds1-0/+9
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Will Deacon: - virt_to_page/page_address optimisations - support for NUMA systems described using device-tree - support for hibernate/suspend-to-disk - proper support for maxcpus= command line parameter - detection and graceful handling of AArch64-only CPUs - miscellaneous cleanups and non-critical fixes * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (92 commits) arm64: do not enforce strict 16 byte alignment to stack pointer arm64: kernel: Fix incorrect brk randomization arm64: cpuinfo: Missing NULL terminator in compat_hwcap_str arm64: secondary_start_kernel: Remove unnecessary barrier arm64: Ensure pmd_present() returns false after pmd_mknotpresent() arm64: Replace hard-coded values in the pmd/pud_bad() macros arm64: Implement pmdp_set_access_flags() for hardware AF/DBM arm64: Fix typo in the pmdp_huge_get_and_clear() definition arm64: mm: remove unnecessary EXPORT_SYMBOL_GPL arm64: always use STRICT_MM_TYPECHECKS arm64: kvm: Fix kvm teardown for systems using the extended idmap arm64: kaslr: increase randomization granularity arm64: kconfig: drop CONFIG_RTC_LIB dependency arm64: make ARCH_SUPPORTS_DEBUG_PAGEALLOC depend on !HIBERNATION arm64: hibernate: Refuse to hibernate if the boot cpu is offline arm64: kernel: Add support for hibernate/suspend-to-disk PM / Hibernate: Call flush_icache_range() on pages restored in-place arm64: Add new asm macro copy_page arm64: Promote KERNEL_START/KERNEL_END definitions to a header file arm64: kernel: Include _AC definition in page.h ...
2016-04-28device property: Avoid potential dereferences of invalid pointersHeikki Krogerus1-1/+1
Since fwnode may hold ERR_PTR(-ENODEV) or it may be NULL, the fwnode type checks is_of_node(), is_acpi_node() and is is_pset_node() need to consider it. Using IS_ERR_OR_NULL() to check it. Fixes: 0d67e0fa1664 (device property: fix for a case of use-after-free) Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> [ rjw: Subject & changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-20of: Introduce of_phandle_iterator_args()Joerg Roedel1-0/+10
This helper function can be used to copy the arguments of a phandle to an array. Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Rob Herring <robh@kernel.org>
2016-04-20of: Introduce of_for_each_phandle() helper macroJoerg Roedel1-0/+6
With this macro any user can easily iterate over a list of phandles. The patch also converts __of_parse_phandle_with_args() to make use of the macro. The of_count_phandle_with_args() function is not converted, because the macro hides the return value of of_phandle_iterator_init(), which is needed in there. Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Rob Herring <robh@kernel.org>
2016-04-20of: Move phandle walking to of_phandle_iterator_next()Joerg Roedel1-0/+7
Move the code to walk over the phandles out of the loop in __of_parse_phandle_with_args() to a separate function that just works with the iterator handle: of_phandle_iterator_next(). Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Rob Herring <robh@kernel.org>
2016-04-20of: Introduce struct of_phandle_iteratorJoerg Roedel1-0/+33
This struct carrys all necessary information to iterate over a list of phandles and extract the arguments. Add an init-function for the iterator and make use of it in __of_parse_phandle_with_args(). Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Rob Herring <robh@kernel.org>
2016-04-15of, numa: Add NUMA of binding implementation.David Daney1-0/+9
Add device tree parsing for NUMA topology using device "numa-node-id" property in distance-map and cpu nodes. This is a complete rewrite of a previous patch by: Ganapatrao Kulkarni<gkulkarni@caviumnetworks.com> Signed-off-by: David Daney <david.daney@cavium.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-20Merge tag 'devicetree-for-4.6' of ↵Linus Torvalds1-9/+9
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree updates from Rob Herring: - new tool 'dtx_diff' to diff DT files - sync kernel's dtc/libfdt to current dtc repo master - fix for reserved memory regions located in highmem - document standard unit suffixes for DT properties - various DT binding doc updates * tag 'devicetree-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of: Add vendor prefix for eGalax_eMPIA Technology Inc Input: ads7846: Add description how to use internal reference (ADS7846) ARM: realview: add EB syscon variants to bindings devicetree: bindings: ARM: Use "uV" for micro-volt serial: fsl-imx-uart: Fix typo in fsl,dte-mode description of: add 'const' for of_property_*_string*() parameter '*np' of/unittest: fix infinite loop in of_unittest_destroy_tracked_overlays() of: alloc anywhere from memblock if range not specified kbuild: Allow using host dtc instead of kernel's copy of: resolver: Add missing of_node_get and of_node_put of: Add United Radiant Technology Corporation vendor prefix dt/bindings: add documentation on standard property unit suffixes scripts/dtc: Update to upstream commit b06e55c88b9b ARM: boot: Add an implementation of strnlen for libfdt scripts/dtc: dtx_diff - add info to error message dtc: create tool to diff device trees
2016-03-04of: add 'const' for of_property_*_string*() parameter '*np'David Rivshin1-9/+9
The of_property_{read,count,match}_string* family of functions never modify the struct device_node pointer that is passed in, so there is no reason for it to be non-const. Equivalent functions for all other types already take a 'const struct device_node *np'. Signed-off-by: David Rivshin <drivshin@allworx.com> Signed-off-by: Rob Herring <robh@kernel.org>
2016-01-25of: drop symbols declared by _OF_DECLARE() from modulesMasahiro Yamada1-1/+1
The users of this macro (OF_EARLYCON_DECLARE, CLK_OF_DECLARE, IRQCHIP_DECLARE, etc.) are only parsed in the early boot stage. Such symbols contained in modules are never used. This commit fixes the link error introduced by commit b8d20e06eaad ("serial: 8250_uniphier: add earlycon support"); the combination of CONFIG_SERIAL_8250_UNIPHIER=m and CONFIG_SERIAL_8250_CONSOLE=y fails to link: ERROR: "early_serial8250_setup" [drivers/tty/serial/8250/8250_uniphier.ko] undefined! Fixes: b8d20e06eaad ("serial: 8250_uniphier: add earlycon support") Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rob Herring <robh@kernel.org>
2015-11-11of: Provide static inline function for of_translate_address if neededGuenter Roeck1-2/+2
If OF_ADDRESS is not configured, builds can fail with errors such as drivers/net/ethernet/hisilicon/hns_mdio.c: In function 'hns_mdio_bus_name': drivers/net/ethernet/hisilicon/hns_mdio.c:411:3: error: implicit declaration of function 'of_translate_address' as currently seen when building sparc:allmodconfig. Introduce a static inline function if OF_ADDRESS is not configured to fix the build failure. Return OF_BAD_ADDR in this case. For this to work, the definition of OF_BAD_ADDR has to be moved outside CONFIG_OF conditional code. Fixes: 876133d3161d ("net: hisilicon: add OF dependency") Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Frank Rowand <frank.rowand@sonymobile.com> Signed-off-by: Rob Herring <robh@kernel.org>
2015-08-26device property: check fwnode type in to_of_node()Andy Shevchenko1-1/+2
Potentially one of platform can support both ACPI and OF. In that case when we call to_of_node() for non-OF fwnode types we will get non-NULL result, which is wrong. Check for the type and return a correspondent result. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-07-02Merge tag 'devicetree-for-linus' of ↵Linus Torvalds1-8/+16
git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux Pull devicetree updates from Grant Likely: "A whole lot of bug fixes. Nothing stands out here except the ability to enable CONFIG_OF on every architecture, and an import of a newer version of dtc" * tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux: (22 commits) of/irq: Rename "intc_desc" to "of_intc_desc" to fix OF on sh of/irq: Fix pSeries boot failure Documentation: DT: Fix a typo in the filename "lantiq,<chip>-pinumx.txt" of: define of_find_node_by_phandle for !CONFIG_OF of/address: use atomic allocation in pci_register_io_range() of: Add vendor prefix for Zodiac Inflight Innovations dt/fdt: add empty versions of early_init_dt_*_memory_arch of: clean-up unnecessary libfdt include paths of: make unittest select OF_EARLY_FLATTREE instead of depend on it of: make CONFIG_OF user selectable MIPS: prepare for user enabling of CONFIG_OF of/fdt: fix argument name and add comments of unflatten_dt_node() of: return NUMA_NO_NODE from fallback of_node_to_nid() tps6507x.txt: Remove executable permission of/overlay: Grammar s/an negative/a negative/ of/fdt: Make fdt blob input parameters of unflatten functions const of: add helper function to retrive match data of: Grammar s/property exist/property exists/ of: Move OF flags to be visible even when !CONFIG_OF scripts/dtc: Update to upstream version 9d3649bd3be245c9 ...
2015-06-30Merge remote-tracking branch 'robh/for-next' into devicetree/nextGrant Likely1-7/+12
2015-06-24ACPI / OF: Rename of_node() and acpi_node() to to_of_node() and to_acpi_node()Alexander Sverdlin1-2/+2
Commit 8a0662d9 introduced of_node and acpi_node symbols in global namespace but there were already ~63 of_node local variables or function parameters (no single acpi_node though, but anyway). After debugging undefined but used of_node local varible (which turned out to reference static function of_node() instead) it became clear that the names for the functions are too short and too generic for global scope. Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-06-23of: define of_find_node_by_phandle for !CONFIG_OFSuman Anna1-0/+5
Define stub implementation for of_find_node_by_phandle() API so that users of this API can build properly even when CONFIG_OF is not defined. Fixes x86 randconfig build failure of remoteproc. Signed-off-by: Suman Anna <s-anna@ti.com> [robh: add details on fixing remoteproc compile] Signed-off-by: Rob Herring <robh@kernel.org>
2015-06-04of: return NUMA_NO_NODE from fallback of_node_to_nid()Konstantin Khlebnikov1-1/+4
Node 0 might be offline as well as any other numa node, in this case kernel cannot handle memory allocation and crashes. Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Fixes: 0c3f061c195c ("of: implement of_node_to_nid as a weak function") Signed-off-by: Grant Likely <grant.likely@linaro.org>