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2016-03-03ARM: realview: add EB syscon variants to bindingsLinus Walleij1-1/+3
There are two distinct RealView EB system controller that we need to detect and handle because their register layout differ slightly. Cc: Rob Herring <robh+dt@kernel.org> Cc: devicetree@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rob Herring <robh@kernel.org>
2016-03-03devicetree: bindings: ARM: Use "uV" for micro-voltGeert Uytterhoeven1-1/+1
The binding documentation uses both "uVolt" and "uV" for micro-volt. Improve consistency by settling on "uV". Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rob Herring <robh@kernel.org>
2016-03-03serial: fsl-imx-uart: Fix typo in fsl,dte-mode descriptionFabio Estevam1-1/+1
We should say "The uart works in DCE mode". Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Rob Herring <robh@kernel.org>
2016-03-03of: add 'const' for of_property_*_string*() parameter '*np'David Rivshin2-16/+17
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>
2016-03-03of/unittest: fix infinite loop in of_unittest_destroy_tracked_overlays()Sergey Senozhatsky1-0/+5
of_overlay_destroy() can return `-ENODEV' error code once it failed to find the requested overlay in `ov_idr'. However, of_unittest_destroy_tracked_overlays() does not handle this error code correctly and continues to call of_overlay_destroy() on the 'missing' overlay over and over again. This results in a printk flood [..] [ 33.497583] of_overlay_destroy: Could not find overlay #6 [ 33.497583] of_overlay_destroy: Could not find overlay #6 [ 33.497584] ### dt-test ### of_unittest_destroy_tracked_overlays: overlay destroy failed for #6 [ 33.497584] ### dt-test ### of_unittest_destroy_tracked_overlays: overlay destroy failed for #6 [ 33.497586] of_overlay_destroy: Could not find overlay #6 [ 33.497586] of_overlay_destroy: Could not find overlay #6 [ 33.497587] ### dt-test ### of_unittest_destroy_tracked_overlays: overlay destroy failed for #6 [ 33.497587] ### dt-test ### of_unittest_destroy_tracked_overlays: overlay destroy failed for #6 [..] which is not really good due to printk design, and can lead to soft lockups, hard lockups, etc. (depending on the context console_unlock() is being called from). The problem has bee observed in real life and reported by Ying Huang. This patch does not address the root cause of missing overlay in `ov_idr', it fixes the endless loop only. Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Reported-by: kernel test robot <ying.huang@linux.intel.com> Link: lkml.kernel.org/r/87fuwk1c0o.fsf@yhuang-dev.intel.com Signed-off-by: Rob Herring <robh@kernel.org>
2016-03-03of: alloc anywhere from memblock if range not specifiedVinayak Menon1-1/+3
early_init_dt_alloc_reserved_memory_arch passes end as 0 to __memblock_alloc_base, when limits are not specified. But __memblock_alloc_base takes end value of 0 as MEMBLOCK_ALLOC_ACCESSIBLE and limits the end to memblock.current_limit. This results in regions never being placed in HIGHMEM area, for e.g. CMA. Let __memblock_alloc_base allocate from anywhere in memory if limits are not specified. Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> Cc: stable@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
2016-02-23kbuild: Allow using host dtc instead of kernel's copyRob Herring1-1/+2
Development of dtc happens in its own upstream repository, but testing dtc changes against the kernel tree is useful. Change dtc to a variable that users can override. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Michal Marek <mmarek@suse.com> Cc: linux-kbuild@vger.kernel.org
2016-02-13of: resolver: Add missing of_node_get and of_node_putAmitoj Kaur Chawla1-2/+5
In __of_find_node_by_full_name, add an of_node_get when detecting the desired element, to ensure that it ends up with a reference count that is one greater than on entering the function. Also in __of_find_node_by_full_name, add an of_node_put on breaking out of the for_each_child_of_node loop, to ensure that the reference count of the returned value is not double incremented. This change was made using Coccinelle. The semantic patch used for this is as follows: // <smpl> @@ expression e; local idexpression n; @@ for_each_child_of_node(..., n) { ... when != of_node_put(n) when != e = n ( return n; | + of_node_put(n); ? return ...; ) ... } // </smpl Finally, add an of_node_put in for_each_child_of_node in the function __of_adjust_phandle_ref after the value returned by __of_find_node_by_full_name is no longer useful. Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Rob Herring <robh@kernel.org>
2016-02-12of: Add United Radiant Technology Corporation vendor prefixMaciej S. Szmigiero1-0/+1
Add vendor prefix for United Radiant Technology Corporation, a provider of liquid crystal display technologies. Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> Signed-off-by: Rob Herring <robh@kernel.org>