kernel/linux.git/drivers/of/base.c, branch v4.11.5

Merge tag 'devicetree-for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

2017-02-23T03:23:14+00:00

Pull DeviceTree updates from Rob Herring: "Pretty standard stuff with dtc upstream sync being the biggest piece. - Sync dtc to upstream commit 0931cea3ba20. This picks up overlay support in dtc. - Set dma_ops for reserved memory users. - Make references to IOMMU consistent in DT bindings. - Cleanup references to pm_power_off in bindings. - Move some display bindings that snuck into the old bindings/video/ path. - Fix some wrong documentation paths caused from binding restructuring. - Vendor prefixes for Faraday and Fujitsu. - Fix an of_node ref counting leak in of_find_node_opts_by_path - Introduce new graph helper of_graph_get_remote_node() which will be used by DRM drivers in 4.12" * tag 'devicetree-for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (27 commits) DT: add Faraday Tec. as vendor of: introduce of_graph_get_remote_node of: Add missing space at end of pr_fmt(). of: make of_device_make_bus_id() static of: fix of_node leak caused in of_find_node_opts_by_path dt-bindings: net: remove reference to fixed link support dt-bindings: power: reset: qnap-poweroff: Drop reference to pm_power_off dt-bindings: power: reset: gpio-poweroff: Drop reference to pm_power_off dt-bindings: mfd: as3722: Drop reference to pm_power_off dt-bindings: display: move ANX7814 and SiI8620 bridge bindings of/unittest: Swap arguments of of_unittest_apply_overlay() Documentation: usb: fix wrong documentation paths serial: fsl-imx-uart.txt: Remove generic property devicetree: Add Fujitsu Ltd. vendor prefix Documentation: display: fix wrong documentation paths of: remove redundant memset in overlay bus:qcom : Fix typo in qcom,ebi2.txt dt-bindings: qman: Remove pool channel node Documentation: panel-dpi: fix path to display-timing.txt devicetree: bindings: clk: mvebu: fix description for sata1 on Armada XP ...

Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

2017-02-22T18:46:44+00:00

Pull arm64 updates from Will Deacon: - Errata workarounds for Qualcomm's Falkor CPU - Qualcomm L2 Cache PMU driver - Qualcomm SMCCC firmware quirk - Support for DEBUG_VIRTUAL - CPU feature detection for userspace via MRS emulation - Preliminary work for the Statistical Profiling Extension - Misc cleanups and non-critical fixes * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (74 commits) arm64/kprobes: consistently handle MRS/MSR with XZR arm64: cpufeature: correctly handle MRS to XZR arm64: traps: correctly handle MRS/MSR with XZR arm64: ptrace: add XZR-safe regs accessors arm64: include asm/assembler.h in entry-ftrace.S arm64: fix warning about swapper_pg_dir overflow arm64: Work around Falkor erratum 1003 arm64: head.S: Enable EL1 (host) access to SPE when entered at EL2 arm64: arch_timer: document Hisilicon erratum 161010101 arm64: use is_vmalloc_addr arm64: use linux/sizes.h for constants arm64: uaccess: consistently check object sizes perf: add qcom l2 cache perf events driver arm64: remove wrong CONFIG_PROC_SYSCTL ifdef ARM: smccc: Update HVC comment to describe new quirk parameter arm64: do not trace atomic operations ACPI/IORT: Fix the error return code in iort_add_smmu_platform_device() ACPI/IORT: Fix iort_node_get_id() mapping entries indexing arm64: mm: enable CONFIG_HOLES_IN_ZONE for NUMA perf: xgene: Include module.h ...

of: introduce of_graph_get_remote_node

2017-02-15T14:53:32+00:00

The OF graph API leaves too much of the graph walking to clients when in many cases the driver doesn't care about accessing the port or endpoint nodes. The drivers typically just want the device connected via a particular graph connection. of_graph_get_remote_node provides this functionality. Signed-off-by: Rob Herring Acked-by: Philipp Zabel

of: fix of_node leak caused in of_find_node_opts_by_path

2017-02-09T15:11:30+00:00

During stepping down the tree, parent node is gotten first and its refcount is increased with of_node_get() in __of_get_next_child(). Since it just being used as tmp node, its refcount must be decreased with of_node_put() after traversing its child nodes. Or, its refcount will never be descreased to ZERO, then it will never be freed, as well as other related memory blocks. To fix this, decrease refcount of parent with of_node_put() after __of_find_node_by_path(). Signed-off-by: Qi Hou Acked-by: Peter Rosin Signed-off-by: Rob Herring

of: base: add support to find the level of the last cache

2017-01-17T12:09:33+00:00

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 Suggested-by: Rob Herring Acked-by: Rob Herring Tested-by: Tan Xiaojun Signed-off-by: Sudeep Holla [will: use u32 instead of int for cache_level] Signed-off-by: Will Deacon

OF: Prevent unaligned access in of_alias_scan()

2017-01-03T15:34:48+00:00

When allocating a struct alias_prop, of_alias_scan() only requested that it be aligned on a 4 byte boundary. The struct contains pointers which leads to us attempting 64 bit writes on 64 bit systems, and if the CPU doesn't support unaligned memory accesses then this causes problems - for example on some MIPS64r2 CPUs including the "mips64r2-generic" QEMU emulated CPU it will trigger an address error exception. Fix this by requesting alignment for the struct alias_prop allocation matching that which the compiler expects, using the __alignof__ keyword. Signed-off-by: Paul Burton Acked-by: Rob Herring Reviewed-by: Grant Likely Cc: Frank Rowand Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14306/ Signed-off-by: Ralf Baechle

Merge tag 'devicetree-for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

2016-12-15T19:49:41+00:00

Pull DeviceTree updates from Rob Herring: - add various vendor prefixes. - fix NUMA node handling when "numa=off" is passed on kernel command line. - coding style Clean-up of overlay handling code. - DocBook fixes in DT platform driver code - Altera SoCFPGA binding addtions for freeze bridge, arria10 FPGA manager and FPGA bridges. - a couple of printk message fixes. * tag 'devicetree-for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (33 commits) dt: pwm: bcm2835: fix typo in clocks property name devicetree: add vendor prefix for National Instruments Revert "of: base: add support to get machine model name" of: Fix issue where code would fall through to error case. drivers/of: fix missing pr_cont()s in of_print_phandle_args devicetree: bindings: Add vendor prefix for Oki devicetree: bindings: Add vendor prefix for Andes Technology Corporation dt-bindings: add MYIR Tech hardware vendor prefix add bindings document for altera freeze bridge ARM: socfpga: add bindings doc for arria10 fpga manager ARM: socfpga: add bindings document for fpga bridge drivers of: base: add support to get machine model name of/platform: clarify of_find_device_by_node refcounting of/platform: fix of_platform_device_destroy comment of: Remove unused variable overlay_symbols of: Move setting of pointer to beside test for non-null of: Add back an error message, restructured of: Update comments to reflect changes and increase clarity of: Remove redundant size check of: Update structure of code to be clearer, also remove BUG_ON() ...

Revert "of: base: add support to get machine model name"

2016-12-09T16:33:48+00:00

This reverts commit e5269794d2e9046dd45be15bdb213a229df46b7e.

drivers/of: fix missing pr_cont()s in of_print_phandle_args

2016-12-09T16:32:40+00:00

Since the KERN_CONT changes, the current debug printks have a lot of empty lines making the log messages very hard to read. Signed-off-by: Marcin Nowakowski Signed-off-by: Rob Herring

of: base: add support to get machine model name

2016-11-18T14:46:22+00:00

Currently platforms/drivers needing to get the machine model name are replicating the same snippet of code. In some case, the OF reference counting is either missing or incorrect. This patch adds support to read the machine model name either using the "model" or the "compatible" property in the device tree root node to the core OF/DT code. This can be used to remove all the duplicate code snippets doing exactly same thing later. Cc: Rob Herring Cc: Frank Rowand Cc: Arnd Bergmann Signed-off-by: Sudeep Holla Signed-off-by: Rob Herring