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* ARM: 8847/1: pm: fix HYP/SVC mode mismatch when MCPM is usedMarek Szyprowski2019-02-261-1/+1
| | | | | | | | | | | | | | | | | | | MCPM does a soft reset of the CPUs and uses common cpu_resume() routine to perform low-level platform initialization. This results in a try to install HYP stubs for the second time for each CPU and results in false HYP/SVC mode mismatch detection. The HYP stubs are already installed at the beginning of the kernel initialization on the boot CPU (head.S) or in the secondary_startup() for other CPUs. To fix this issue MCPM code should use a cpu_resume() routine without HYP stubs installation. This change fixes HYP/SVC mode mismatch on Samsung Exynos5422-based Odroid XU3/XU4/HC1 boards. Fixes: 3721924c8154 ("ARM: 8081/1: MCPM: provide infrastructure to allow for MCPM loopback") Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Nicolas Pitre <nico@linaro.org> Tested-by: Anand Moon <linux.amoon@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* Merge tag 'for-4.21' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds2019-01-051-59/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM updates from Russell King: "Included in this update: - Florian Fainelli noticed that userspace segfaults caused by the lack of kernel-userspace helpers was hard to diagnose; we now issue a warning when userspace tries to use the helpers but the kernel has them disabled. - Ben Dooks wants compatibility for the old ATAG serial number with DT systems. - Some cleanup of assembly by Nicolas Pitre. - User accessors optimisation from Vincent Whitchurch. - More robust kdump on SMP systems from Yufen Wang. - Sebastian Andrzej Siewior noticed problems with the SMP "boot_lock" on RT kernels, and so we convert the Versatile series of platforms to use a raw spinlock instead, consolidating the Versatile implementation. We entirely remove the boot_lock on OMAP systems, where it's unnecessary. Further patches for other systems will be submitted for the following merge window. - Start switching old StrongARM-11x0 systems to use gpiolib rather than their private GPIO implementation - mostly PCMCIA bits. - ARM Kconfig cleanups. - Cleanup a mostly harmless mistake in the recent Spectre patch in 4.20 (which had the effect that data that can be placed into the init sections was incorrectly always placed in the rodata section)" * tag 'for-4.21' of git://git.armlinux.org.uk/~rmk/linux-arm: (25 commits) ARM: omap2: remove unnecessary boot_lock ARM: versatile: rename and comment SMP implementation ARM: versatile: convert boot_lock to raw ARM: vexpress/realview: consolidate immitation CPU hotplug ARM: fix the cockup in the previous patch ARM: sa1100/cerf: switch to using gpio_led_register_device() ARM: sa1100/assabet: switch to using gpio leds ARM: sa1100/assabet: add gpio keys support for right-hand two buttons ARM: sa1111: remove legacy GPIO interfaces pcmcia: sa1100*: remove redundant bvd1/bvd2 setting ARM: pxa/lubbock: switch PCMCIA to MAX1600 library ARM: pxa/mainstone: switch PCMCIA to MAX1600 library and gpiod APIs ARM: sa1100/neponset: switch PCMCIA to MAX1600 library and gpiod APIs ARM: sa1100/jornada720: switch PCMCIA to gpiod APIs pcmcia: add MAX1600 library ARM: sa1100: explicitly register sa11x0-pcmcia devices ARM: 8813/1: Make aligned 2-byte getuser()/putuser() atomic on ARMv6+ ARM: 8812/1: Optimise copy_{from/to}_user for !CPU_USE_DOMAINS ARM: 8811/1: always list both ldrd/strd registers explicitly ARM: 8808/1: kexec:offline panic_smp_self_stop CPU ...
| * ARM: sa1111: remove legacy GPIO interfacesRussell King2018-12-041-59/+0
| | | | | | | | | | | | | | Now that we have migrated all users of the legacy private SA1111 gpio interfaces, we can remove these redundant GPIO interfaces. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* | arm: remove the mapping_error dma_map_ops methodChristoph Hellwig2018-12-061-9/+3
|/ | | | | | | | | | Arm already returns (~(dma_addr_t)0x0) on mapping failures, so we can switch over to returning DMA_MAPPING_ERROR and let the core dma-mapping code handle the rest. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
* ARM: Add Krait L2 register accessor functionsStephen Boyd2018-10-173-0/+52
| | | | | | | | | | | | | | | | | | | Krait CPUs have a handful of L2 cache controller registers that live behind a cp15 based indirection register. First you program the indirection register (l2cpselr) to point the L2 'window' register (l2cpdr) at what you want to read/write. Then you read/write the 'window' register to do what you want. The l2cpselr register is not banked per-cpu so we must lock around accesses to it to prevent other CPUs from re-pointing l2cpdr underneath us. Cc: Mark Rutland <mark.rutland@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Sricharan R <sricharan@codeaurora.org> Tested-by: Craig Tatlor <ctatlor97@gmail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
* ARM: Always build secure_cntvoff.S on ARM V7 to fix shmobile !SMP buildGeert Uytterhoeven2018-06-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | If CONFIG_SMP=n, building a kernel for R-Car Gen2 fails with: arch/arm/mach-shmobile/setup-rcar-gen2.o: In function `rcar_gen2_timer_init': setup-rcar-gen2.c:(.init.text+0x30): undefined reference to `secure_cntvoff_init' Indeed, on R-Car Gen2 SoCs, secure_cntvoff_init() is not only needed for secondary CPUs, but also for the boot CPU. This is most visible on SoCs with Cortex A7 cores (e.g. R-Car E2, cfr. commit 9ce3fa6816c2fb59 ("ARM: shmobile: rcar-gen2: Add CA7 arch_timer initialization for r8a7794")), but Cortex A15 is affected, too. Fix this by always providing secure_cntvoff_init() when building for ARM V7. Reported-by: Arnd Bergmann <arnd@arndb.de> Fixes: 7c607944bc657616 ("ARM: smp: Add initialization of CNTVOFF") Fixes: cad160ed0a94927e ("ARM: shmobile: Convert file to use cntvoff") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Olof Johansson <olof@lixom.net>
* Merge tag 'armsoc-soc' of ↵Linus Torvalds2018-06-122-0/+33
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Olof Johansson: "Here are the main updates for SoC support (besides DT additions) for ARM 32- and 64-bit platforms. The branch also contains defconfig updates to turn on drivers and options as needed on the various platforms. The largest parts of the delta are from cleanups moving platform data and board file setup of TI platforms to ti-sysc bus drivers. There are also some sweeping changes of eeprom and nand setup on Davinci, i.MX and other platforms. Samsung is removing support for Exynos5440, which was an oddball SoC that hasn't been seen much use in designs. Renesas is adding support for new SoCs (R-Car E3, RZ/G1C and RZ/N1D). Linus Walleij is also removing support for ux500 (Sony Ericsson) U8540/9540 SoCs that never made it to significant mass production and products" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (133 commits) MAINTAINERS: add NXP linux team maillist as i.MX reviewer ARM: stm32: Don't select DMA unconditionally on STM32MP157C arm64: defconfig: Enable PCIe on msm8996 and db820c ARM: pxa3xx: enable external wakeup pins ARM: pxa: stargate2: use device properties for at24 eeprom arm64: defconfig: Enable HISILICON_LPC arm64: defconfig: enable drivers for Poplar support arm64: defconfig: Enable UFS on msm8996 ARM: berlin: switch to SPDX license identifier arm: berlin: remove non-necessary flush_cache_all() ARM: berlin: extend BG2CD Kconfig entry OMAP: CLK: CLKSRC: Add suspend resume hooks ARM: AM43XX: Add functions to save/restore am43xx control registers ASoC: ams_delta: use GPIO lookup table ARM: OMAP1: ams-delta: add GPIO lookup tables bus: ti-sysc: Fix optional clocks array access ARM: OMAP2+: Make sure LOGICRETSTATE bits are not cleared ARM: OMAP2+: prm44xx: Inroduce cpu_pm notifiers for context save/restore ARM: OMAP2+: prm44xx: Introduce context save/restore for am43 PRCM IO ARM: OMAP2+: powerdomain: Introduce cpu_pm notifiers for context save/restore ...
| * ARM: smp: Add initialization of CNTVOFFMylène Josserand2018-05-082-0/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The CNTVOFF register from arch timer is uninitialized. It should be done by the bootloader but it is currently not the case, even for boot CPU because this SoC is booting in secure mode. It leads to an random offset value meaning that each CPU will have a different time, which isn't working very well. Add assembly code used for boot CPU and secondary CPU cores to make sure that the CNTVOFF register is initialized. Because this code can be used by different platforms, add this assembly file in ARM's common folder. Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
* | ARM: mcpm, perf/arm-cci: export mcpm_is_availableArnd Bergmann2018-05-291-0/+2
|/ | | | | | | | | | | | | | | Now that the ARM CCI PMU driver can be built as a loadable module, we get a link failure when MCPM is enabled: ERROR: "mcpm_is_available" [drivers/perf/arm-cci.ko] undefined! The simplest fix is to export that helper function. Fixes: 8b0c93c20ef7 ("perf/arm-cci: Allow building as a module") Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Will Deacon <will.deacon@arm.com>
*-. Merge branches 'fixes', 'misc', 'sa1111' and 'sa1100-for-next' into for-nextRussell King2018-01-212-164/+168
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| | * ARM: sa1111: map interrupt numbers through irqdomainRussell King2017-11-291-14/+26
| | | | | | | | | | | | | | | | | | | | | | | | Map the interrupt numbers for SA1111 through the SA1111 IRQ domain rather than doing our own translation. This allows us to eliminate the irq_base sachip member. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| | * ARM: sa1111: use an irqdomain for SA1111 interruptsRussell King2017-11-291-28/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | Use an IRQ domain for SA1111 interrupts, which allows us to separate the hardware interrupt number from the Linux interrupt number. We can then use the hardware interrupt number stored in the irq_data to calculate the register offsets and mask. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| | * ARM: sa1111: remove special sa1111 mmio accessorsRussell King2017-11-291-91/+89
| | | | | | | | | | | | | | | | | | | | | Remove the special sa1111 mmio accessors from core sa1111 code, and their definition in sa1111.h now that all users are gone. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| | * ARM: sa1111: remove legacy suspend/resume methodsRussell King2017-11-291-24/+0
| | | | | | | | | | | | | | | | | | | | | | | | The legacy device-driver suspend/resume methods are not used by any of our drivers, so let's remove this redundant code. Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| | * ARM: sa1111: remove legacy shutdown methodRussell King2017-11-271-9/+0
| |/ |/| | | | | | | | | | | | | Since the only user of the SA1111 device driver shutdown method has now gone, we can kill the bus level support code and the entry in the sa1111 device driver structure. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| * ARM: 8743/1: bL_switcher: add MODULE_LICENSE tagArnd Bergmann2018-01-211-0/+4
|/ | | | | | | | | | | Without this tag, we get a build warning: WARNING: modpost: missing MODULE_LICENSE() in arch/arm/common/bL_switcher_dummy_if.o For completeness, I'm also adding author and description fields. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* Merge branch 'pm-sleep'Rafael J. Wysocki2017-11-131-24/+0
|\ | | | | | | | | | | | | | | | | | | * pm-sleep: freezer: Fix typo in freezable_schedule_timeout() comment PM / s2idle: Clear the events_check_enabled flag PM / sleep: Remove pm_complete_with_resume_check() PM: ARM: locomo: Drop suspend and resume bus type callbacks PM: Use a more common logging style PM: Document rules on using pm_runtime_resume() in system suspend callbacks
| * PM: ARM: locomo: Drop suspend and resume bus type callbacksRafael J. Wysocki2017-10-051-24/+0
| | | | | | | | | | | | | | | | | | None of the locomo drivers in the tree implements the suspend and resume callbacks from struct locomo_driver, so drop them and drop the corresponding callbacks from locomo_bus_type. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
* | License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman2017-11-022-0/+2
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* arm: implement ->dma_supported instead of ->set_dma_maskChristoph Hellwig2017-06-281-4/+3
| | | | | | Same behavior, less code duplication. Signed-off-by: Christoph Hellwig <hch@lst.de>
* arm: remove arch specific dma_supported implementationChristoph Hellwig2017-06-281-0/+1
| | | | | | | | | And instead wire it up as method for all the dma_map_ops instances. Note that the code seems a little fishy for dmabounce and iommu, but for now I'd like to preserve the existing behavior 1:1. Signed-off-by: Christoph Hellwig <hch@lst.de>
* arm: implement ->mapping_errorChristoph Hellwig2017-06-281-3/+10
| | | | | | DMA_ERROR_CODE is going to go away, so don't rely on it. Signed-off-by: Christoph Hellwig <hch@lst.de>
* ARM: 8675/1: MCPM: ensure not to enter __hyp_soft_restart from loopback and ↵Sudeep Holla2017-05-231-3/+3
| | | | | | | | | | | | | | | | | | | | | | cpu_power_down Commit 9da5ac236de6 ("ARM: soft-reboot into same mode that we entered the kernel") added support to enter the new kernel in the same processor mode as the previous one when we soft-reboot from one kernel into another by pass a flag to cpu_reset() so it knows what to do exactly. However it missed to make similar changes in MCPM code. Due to the missing flag, the CPUs enter HYP mode which is not supported with MCPM. MCPM works only in secure mode as it manages CCI. This patch aligns the cpu_reset call in MCPM with other changes in the above mentioned commit by making phys_reset_t to follow the prototype of cpu_reset(). Fixes: 9da5ac236de6 ("ARM: soft-reboot into same mode that we entered the kernel") Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* ARM/clk: move the ICST library to drivers/clkLinus Walleij2017-04-073-109/+0
| | | | | | | | | | | | | | | | This moves the ICST clock divider helper library from arch/arm/common to drivers/clk/versatile so it is maintained with the other clock drivers. We keep the structure as a helper library intact and do not fuse it with the clk-icst.c Versatile ICST clock driver: there may be other users out there that need to use this library for their clocking, and then it will be helpful to keep the library contained. (The icst.[c|h] files could just be moved to drivers/clk/lib or a similar location to share the library.) Acked-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* sched/headers: Prepare to move signal wakeup & sigpending methods from ↵Ingo Molnar2017-03-021-1/+1
| | | | | | | | | | | | | <linux/sched.h> into <linux/sched/signal.h> Fix up affected files that include this signal functionality via sched.h. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* sched/headers: Prepare for new header dependencies before moving code to ↵Ingo Molnar2017-03-021-0/+1
| | | | | | | | | | | | | | | | | | <uapi/linux/sched/types.h> We are going to move scheduler ABI details to <uapi/linux/sched/types.h>, which will be used from a number of .c files. Create empty placeholder header that maps to <linux/types.h>. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds2017-02-281-6/+6
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM updates from Russell King: - nommu updates from Afzal Mohammed cleaning up the vectors support - allow DMA memory "mapping" for nommu Benjamin Gaignard - fixing a correctness issue with R_ARM_PREL31 relocations in the module linker - add strlen() prototype for the decompressor - support for DEBUG_VIRTUAL from Florian Fainelli - adjusting memory bounds after memory reservations have been registered - unipher cache handling updates from Masahiro Yamada - initrd and Thumb Kconfig cleanups * 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (23 commits) ARM: mm: round the initrd reservation to page boundaries ARM: mm: clean up initrd initialisation ARM: mm: move initrd init code out of arm_memblock_init() ARM: 8655/1: improve NOMMU definition of pgprot_*() ARM: 8654/1: decompressor: add strlen prototype ARM: 8652/1: cache-uniphier: clean up active way setup code ARM: 8651/1: cache-uniphier: include <linux/errno.h> instead of <linux/types.h> ARM: 8650/1: module: handle negative R_ARM_PREL31 addends correctly ARM: 8649/2: nommu: remove Hivecs configuration is asm ARM: 8648/2: nommu: display vectors base ARM: 8647/2: nommu: dynamic exception base address setting ARM: 8646/1: mmu: decouple VECTORS_BASE from Kconfig ARM: 8644/1: Reduce "CPU: shutdown" message to debug level ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbol ARM: 8640/1: Add support for CONFIG_DEBUG_VIRTUAL ARM: 8639/1: Define KERNEL_START and KERNEL_END ARM: 8638/1: mtd: lart: Rename partition defines to be prefixed with PART_ ARM: 8637/1: Adjust memory boundaries after reservations ARM: 8636/1: Cleanup sanity_check_meminfo ARM: add CPU_THUMB_CAPABLE to indicate possible Thumb support ...
| * ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbolFlorian Fainelli2017-02-281-6/+6
| | | | | | | | | | | | | | | | | | | | | | All low-level PM/SMP code using virt_to_phys() should actually use __pa_symbol() against kernel symbols. Update code where relevant to move away from virt_to_phys(). Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | treewide: Constify most dma_map_ops structuresBart Van Assche2017-01-241-1/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most dma_map_ops structures are never modified. Constify these structures such that these can be write-protected. This patch has been generated as follows: git grep -l 'struct dma_map_ops' | xargs -d\\n sed -i \ -e 's/struct dma_map_ops/const struct dma_map_ops/g' \ -e 's/const struct dma_map_ops {/struct dma_map_ops {/g' \ -e 's/^const struct dma_map_ops;$/struct dma_map_ops;/' \ -e 's/const const struct dma_map_ops /const struct dma_map_ops /g'; sed -i -e 's/const \(struct dma_map_ops intel_dma_ops\)/\1/' \ $(git grep -l 'struct dma_map_ops intel_dma_ops'); sed -i -e 's/const \(struct dma_map_ops dma_iommu_ops\)/\1/' \ $(git grep -l 'struct dma_map_ops' | grep ^arch/powerpc); sed -i -e '/^struct vmd_dev {$/,/^};$/ s/const \(struct dma_map_ops[[:blank:]]dma_ops;\)/\1/' \ -e '/^static void vmd_setup_dma_ops/,/^}$/ s/const \(struct dma_map_ops \*dest\)/\1/' \ -e 's/const \(struct dma_map_ops \*dest = \&vmd->dma_ops\)/\1/' \ drivers/pci/host/*.c sed -i -e '/^void __init pci_iommu_alloc(void)$/,/^}$/ s/dma_ops->/intel_dma_ops./' arch/ia64/kernel/pci-dma.c sed -i -e 's/static const struct dma_map_ops sn_dma_ops/static struct dma_map_ops sn_dma_ops/' arch/ia64/sn/pci/pci_dma.c sed -i -e 's/(const struct dma_map_ops \*)//' drivers/misc/mic/bus/vop_bus.c Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Juergen Gross <jgross@suse.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Russell King <linux@armlinux.org.uk> Cc: x86@kernel.org Signed-off-by: Doug Ledford <dledford@redhat.com>
* Replace <asm/uaccess.h> with <linux/uaccess.h> globallyLinus Torvalds2016-12-241-1/+1
| | | | | | | | | | | | | This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* arch/arm: add option to skip sync on DMA map and unmapAlexander Duyck2016-12-151-6/+10
| | | | | | | | | | | | The use of DMA_ATTR_SKIP_CPU_SYNC was not consistent across all of the DMA APIs in the arch/arm folder. This change is meant to correct that so that we get consistent behavior. Link: http://lkml.kernel.org/r/20161110113424.76501.2715.stgit@ahduyck-blue-test.jf.intel.com Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Cc: Russell King <linux@armlinux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* arm/bL_switcher: Convert to hotplug state machineSebastian Andrzej Siewior2016-11-221-14/+20
| | | | | | | | | | | | Install the callbacks via the state machine. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: rt@linuxtronix.de Cc: linux-arm-kernel@lists.infradead.org Cc: Russell King <linux@armlinux.org.uk> Link: http://lkml.kernel.org/r/20161117183541.8588-15-bigeasy@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds2016-10-061-177/+257
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM updates from Russell King: - Correct ARMs dma-mapping to use the correct printk format strings. - Avoid defining OBJCOPYFLAGS globally which upsets lkdtm rodata testing. - Cleanups to ARMs asm/memory.h include. - L2 cache cleanups. - Allow flat nommu binaries to be executed on ARM MMU systems. - Kernel hardening - add more read-only after init annotations, including making some kernel vdso variables const. - Ensure AMBA primecell clocks are appropriately defaulted. - ARM breakpoint cleanup. - Various StrongARM 11x0 and companion chip (SA1111) updates to bring this legacy platform to use more modern APIs for (eg) GPIOs and interrupts, which will allow us in the future to reduce some of the board-level driver clutter and elimate function callbacks into board code via platform data. There still appears to be interest in these platforms! - Remove the now redundant secure_flush_area() API. - Module PLT relocation optimisations. Ard says: This series of 4 patches optimizes the ARM PLT generation code that is invoked at module load time, to get rid of the O(n^2) algorithm that results in pathological load times of 10 seconds or more for large modules on certain STB platforms. - ARMv7M cache maintanence support. - L2 cache PMU support * 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (35 commits) ARM: sa1111: provide to_sa1111_device() macro ARM: sa1111: add sa1111_get_irq() ARM: sa1111: clean up duplication in IRQ chip implementation ARM: sa1111: implement a gpio_chip for SA1111 GPIOs ARM: sa1111: move irq cleanup to separate function ARM: sa1111: use devm_clk_get() ARM: sa1111: use devm_kzalloc() ARM: sa1111: ensure we only touch RAB bus type devices when removing ARM: 8611/1: l2x0: add PMU support ARM: 8610/1: V7M: Add dsb before jumping in handler mode ARM: 8609/1: V7M: Add support for the Cortex-M7 processor ARM: 8608/1: V7M: Indirect proc_info construction for V7M CPUs ARM: 8607/1: V7M: Wire up caches for V7M processors with cache support. ARM: 8606/1: V7M: introduce cache operations ARM: 8605/1: V7M: fix notrace variant of save_and_disable_irqs ARM: 8604/1: V7M: Add support for reading the CTR with read_cpuid_cachetype() ARM: 8603/1: V7M: Add addresses for mem-mapped V7M cache operations ARM: 8602/1: factor out CSSELR/CCSIDR operations that use cp15 directly ARM: kernel: avoid brute force search on PLT generation ARM: kernel: sort relocation sections before allocating PLTs ...
| * ARM: sa1111: provide to_sa1111_device() macroRussell King2016-09-211-9/+9
| | | | | | | | | | | | | | | | Provide a nicer to_sa1111_device macro to convert a struct device to a sa1111_dev. We will need this for drivers when converting them to dev_pm_ops, or removing shutdown methods. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| * ARM: sa1111: add sa1111_get_irq()Russell King2016-09-201-0/+8
| | | | | | | | | | | | Add a helper function to get the irq number for a device. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| * ARM: sa1111: clean up duplication in IRQ chip implementationRussell King2016-09-201-141/+48
| | | | | | | | | | | | | | | | Clean up the duplication in the IRQ chip implementation - we can compute the register address from the interrupt number rather than duplicating the code for each register. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| * ARM: sa1111: implement a gpio_chip for SA1111 GPIOsRussell King2016-09-201-0/+166
| | | | | | | | | | | | | | Add a gpio_chip instance for SA1111 GPIOs. This allows us to use gpiolib to lookup and manipulate SA1111 GPIOs. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| * ARM: sa1111: move irq cleanup to separate functionRussell King2016-09-201-14/+19
| | | | | | | | | | | | | | Move the SA1111 interrupt cleanup to a separate function, so it can be re-used in the probe error cleanup path. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| * ARM: sa1111: use devm_clk_get()Russell King2016-09-201-10/+4
| | | | | | | | | | | | | | | | Convert sa1111 to use devm_clk_get() to get its clock resource, and strip out the clk_put() calls. This simplifies the error handling a little. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| * ARM: sa1111: use devm_kzalloc()Russell King2016-09-201-3/+1
| | | | | | | | | | | | | | Use devm_kzalloc() to allocate our driver data, so we can eliminate its kfree() from the device removal and error cleanup paths. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| * ARM: sa1111: ensure we only touch RAB bus type devices when removingRussell King2016-09-201-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | When removing a SA1111 device, we try to remove all child devices. However, we must only remove our own RAB bus typed devices from the tree, there may be other devices present which should not be touched. This is necessary before we introduce gpiochip to SA1111 to avoid incorrectly trying to remove the gpiochip device, leading to an oops in __release_resource(). Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* | Merge tag 'char-misc-4.9-rc1' of ↵Linus Torvalds2016-10-041-13/+1
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here's the "big" char and misc driver update for 4.9-rc1. Lots of little things here, all over the driver tree for subsystems that flow through me. Nothing major that I can discern, full details are in the shortlog. All have been in the linux-next tree with no reported issues" * tag 'char-misc-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (144 commits) drivers/misc/hpilo: Changes to support new security states in iLO5 FW at25: fix debug and error messaging misc/genwqe: ensure zero initialization vme: fake: remove unexpected unlock in fake_master_set() vme: fake: mark symbols static where possible spmi: pmic-arb: Return an error code if sanity check fails Drivers: hv: get rid of id in struct vmbus_channel Drivers: hv: make VMBus bus ids persistent mcb: Add a dma_device to mcb_device mcb: Enable PCI bus mastering by default mei: stop the stall timer worker if not needed clk: probe common clock drivers earlier vme: fake: fix build for 64-bit dma_addr_t ttyprintk: Neaten and simplify printing mei: me: add kaby point device ids coresight: tmc: mark symbols static where possible coresight: perf: deal with error condition properly Drivers: hv: hv_util: Avoid dynamic allocation in time synch fpga manager: Add hardware dependency to Zynq driver Drivers: hv: utils: Support TimeSync version 4.0 protocol samples. ...
| * miscdevice: Add helper macro for misc device boilerplatePrasannaKumar Muralidharan2016-08-311-13/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many modules call misc_register and misc_deregister in its module init and exit methods without any additional code. This ends up being boilerplate. This patch adds helper macro module_misc_device(), that replaces module_init()/ module_exit() with template functions. This patch also converts drivers to use new macro. Change since v1: Add device.h include in miscdevice.h as module_driver macro was not available from other include files in some architectures. Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | ARM: locomo: fix locomo irq handlingRussell King2016-09-121-3/+2
| | | | | | | | | | | | | | | | | | | | Accidentally booting Collie on Assabet reveals that the locomo driver incorrectly overwrites gpio-sa1100's chip data for its parent interrupt, leading to oops in sa1100_gpio_unmask() and sa1100_update_edge_regs() when "gpio: sa1100: convert to use IO accessors" is applied. Fix locomo to use the handler data rather than chip data for its parent interrupt. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* | ARM: sa1111: fix missing clk_disable()Russell King2016-09-121-1/+3
| | | | | | | | | | | | | | SA1111 forgets to call clk_disable() in the probe error cleanup path. Add the necessary call. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* | ARM: sa1111: fix pcmcia suspend/resumeRussell King2016-09-121-9/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SA1111 PCMCIA was broken when PCMCIA switched to using dev_pm_ops for the PCMCIA socket class. PCMCIA used to handle suspend/resume via the socket hosting device, which happened at normal device suspend/resume time. However, the referenced commit changed this: much of the resume now happens much earlier, in the noirq resume handler of dev_pm_ops. However, on SA1111, the PCMCIA device is not accessible as the SA1111 has not been resumed at _noirq time. It's slightly worse than that, because the SA1111 has already been put to sleep at _noirq time, so suspend doesn't work properly. Fix this by converting the core SA1111 code to use dev_pm_ops as well, and performing its own suspend/resume at noirq time. This fixes these errors in the kernel log: pcmcia_socket pcmcia_socket0: time out after reset pcmcia_socket pcmcia_socket1: time out after reset and the resulting lack of PCMCIA cards after a S2RAM cycle. Fixes: d7646f7632549 ("pcmcia: use dev_pm_ops for class pcmcia_socket_class") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* | ARM: sa1111: fix pcmcia interrupt mask polarityRussell King2016-09-121-2/+2
| | | | | | | | | | | | | | | | | | The polarity of the high IRQs was being calculated using SA1111_IRQMASK_HI(), but this assumes a Linux interrupt number, not a hardware interrupt number. Hence, the resulting mask was incorrect. Fix this. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* | ARM: sa1111: fix error code propagation in sa1111_probe()Russell King2016-09-121-1/+1
|/ | | | | | | | | Ensure that we propagate the platform_get_irq() error code out of the probe function. This allows probe deferrals to work correctly should platform_get_irq() not be able to resolve the interrupt in a DT environment at probe time. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* dma-mapping: use unsigned long for dma_attrsKrzysztof Kozlowski2016-08-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dma-mapping core and the implementations do not change the DMA attributes passed by pointer. Thus the pointer can point to const data. However the attributes do not have to be a bitfield. Instead unsigned long will do fine: 1. This is just simpler. Both in terms of reading the code and setting attributes. Instead of initializing local attributes on the stack and passing pointer to it to dma_set_attr(), just set the bits. 2. It brings safeness and checking for const correctness because the attributes are passed by value. Semantic patches for this change (at least most of them): virtual patch virtual context @r@ identifier f, attrs; @@ f(..., - struct dma_attrs *attrs + unsigned long attrs , ...) { ... } @@ identifier r.f; @@ f(..., - NULL + 0 ) and // Options: --all-includes virtual patch virtual context @r@ identifier f, attrs; type t; @@ t f(..., struct dma_attrs *attrs); @@ identifier r.f; @@ f(..., - NULL + 0 ) Link: http://lkml.kernel.org/r/1468399300-5399-2-git-send-email-k.kozlowski@samsung.com Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Vineet Gupta <vgupta@synopsys.com> Acked-by: Robin Murphy <robin.murphy@arm.com> Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> Acked-by: Mark Salter <msalter@redhat.com> [c6x] Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> [cris] Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> [drm] Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Acked-by: Joerg Roedel <jroedel@suse.de> [iommu] Acked-by: Fabien Dessenne <fabien.dessenne@st.com> [bdisp] Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> [vb2-core] Acked-by: David Vrabel <david.vrabel@citrix.com> [xen] Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [xen swiotlb] Acked-by: Joerg Roedel <jroedel@suse.de> [iommu] Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon] Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k] Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390] Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [avr32] Acked-by: Vineet Gupta <vgupta@synopsys.com> [arc] Acked-by: Robin Murphy <robin.murphy@arm.com> [arm64 and dma-iommu] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds2016-03-201-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM updates from Russell King: "Another mixture of changes this time around: - Split XIP linker file from main linker file to make it more maintainable, and various XIP fixes, and clean up a resulting macro. - Decompressor cleanups from Masahiro Yamada - Avoid printing an error for a missing L2 cache - Remove some duplicated symbols in System.map, and move vectors/stubs back into kernel VMA - Various low priority fixes from Arnd - Updates to allow bus match functions to return negative errno values, touching some drivers and the driver core. Greg has acked these changes. - Virtualisation platform udpates form Jean-Philippe Brucker. - Security enhancements from Kees Cook - Rework some Kconfig dependencies and move PSCI idle management code out of arch/arm into drivers/firmware/psci.c - ARM DMA mapping updates, touching media, acked by Mauro. - Fix places in ARM code which should be using virt_to_idmap() so that Keystone2 can work. - Fix Marvell Tauros2 to work again with non-DT boots. - Provide a delay timer for ARM Orion platforms" * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (45 commits) ARM: 8546/1: dma-mapping: refactor to fix coherent+cma+gfp=0 ARM: 8547/1: dma-mapping: store buffer information ARM: 8543/1: decompressor: rename suffix_y to compress-y ARM: 8542/1: decompressor: merge piggy.*.S and simplify Makefile ARM: 8541/1: decompressor: drop redundant FORCE in Makefile ARM: 8540/1: decompressor: use clean-files instead of extra-y to clean files ARM: 8539/1: decompressor: drop more unneeded assignments to "targets" ARM: 8538/1: decompressor: drop unneeded assignments to "targets" ARM: 8532/1: uncompress: mark putc as inline ARM: 8531/1: turn init_new_context into an inline function ARM: 8530/1: remove VIRT_TO_BUS ARM: 8537/1: drop unused DEBUG_RODATA from XIP_KERNEL ARM: 8536/1: mm: hide __start_rodata_section_aligned for non-debug builds ARM: 8535/1: mm: DEBUG_RODATA makes no sense with XIP_KERNEL ARM: 8534/1: virt: fix hyp-stub build for pre-ARMv7 CPUs ARM: make the physical-relative calculation more obvious ARM: 8512/1: proc-v7.S: Adjust stack address when XIP_KERNEL ARM: 8411/1: Add default SPARSEMEM settings ARM: 8503/1: clk_register_clkdev: remove format string interface ARM: 8529/1: remove 'i' and 'zi' targets ...
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 19:23:49 +0100