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2013-05-02Merge tag 'cleanup-for-linus' of ↵Linus Torvalds7-164/+300
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanup from Olof Johansson: "Here is a collection of cleanup patches. Among the pieces that stand out are: - The deletion of h720x platforms - Split of at91 non-dt platforms to their own Kconfig file to keep them separate - General cleanups and refactoring of i.MX and MXS platforms - Some restructuring of clock tables for OMAP - Convertion of PMC driver for Tegra to dt-only - Some renames of sunxi -> sun4i (Allwinner A10) - ... plus a bunch of other stuff that I haven't mentioned" * tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (119 commits) ARM: i.MX: remove unused ARCH_* configs ARM i.MX53: remove platform ahci support ARM: sunxi: Rework the restart code irqchip: sunxi: Rename sunxi to sun4i irqchip: sunxi: Make use of the IRQCHIP_DECLARE macro clocksource: sunxi: Rename sunxi to sun4i clocksource: sunxi: make use of CLKSRC_OF clocksource: sunxi: Cleanup the timer code ARM: at91: remove trailing semicolon from macros ARM: at91/setup: fix trivial typos ARM: EXYNOS: remove "config EXYNOS_DEV_DRM" ARM: EXYNOS: change the name of USB ohci header ARM: SAMSUNG: Remove unnecessary code for dma ARM: S3C24XX: Remove unused GPIO drive strength register definitions ARM: OMAP4+: PM: Restore CPU power state to ON with clockdomain force wakeup method ARM: S3C24XX: Removed unneeded dependency on CPU_S3C2412 ARM: S3C24XX: Removed unneeded dependency on CPU_S3C2410 ARM: S3C24XX: Removed unneeded dependency on ARCH_S3C24XX for boards ARM: SAMSUNG: Fix typo "CONFIG_SAMSUNG_DEV_RTC" ARM: S5P64X0: Fix typo "CONFIG_S5P64X0_SETUP_SDHCI" ...
2013-04-30Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina: "Usual stuff, mostly comment fixes, typo fixes, printk fixes and small code cleanups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (45 commits) mm: Convert print_symbol to %pSR gfs2: Convert print_symbol to %pSR m32r: Convert print_symbol to %pSR iostats.txt: add easy-to-find description for field 6 x86 cmpxchg.h: fix wrong comment treewide: Fix typo in printk and comments doc: devicetree: Fix various typos docbook: fix 8250 naming in device-drivers pata_pdc2027x: Fix compiler warning treewide: Fix typo in printks mei: Fix comments in drivers/misc/mei treewide: Fix typos in kernel messages pm44xx: Fix comment for "CONFIG_CPU_IDLE" doc: Fix typo "CONFIG_CGROUP_CGROUP_MEMCG_SWAP" mmzone: correct "pags" to "pages" in comment. kernel-parameters: remove outdated 'noresidual' parameter Remove spurious _H suffixes from ifdef comments sound: Remove stray pluses from Kconfig file radio-shark: Fix printk "CONFIG_LED_CLASS" doc: put proper reference to CONFIG_MODULE_SIG_ENFORCE ...
2013-04-11Merge tag 'sunxi-cleanup-for-3.10' of git://github.com/mripard/linux into ↵Olof Johansson3-152/+150
next/cleanup From Maxime Ripard: Cleanups for Allwinner sunXi architecture: - Remove sunxi.dtsi - Switch to clocksource/irqchip device tree handlers - Cleanup the watchdog code * tag 'sunxi-cleanup-for-3.10' of git://github.com/mripard/linux: ARM: sunxi: Rework the restart code irqchip: sunxi: Rename sunxi to sun4i irqchip: sunxi: Make use of the IRQCHIP_DECLARE macro clocksource: sunxi: Rename sunxi to sun4i clocksource: sunxi: make use of CLKSRC_OF clocksource: sunxi: Cleanup the timer code clocksource: make CLOCKSOURCE_OF_DECLARE type safe Signed-off-by: Olof Johansson <olof@lixom.net> Add/change conflict in drivers/clocksource/Makefile resolved.
2013-04-09Merge tag 'mxs-cleanup-3.10' of ↵Arnd Bergmann2-0/+122
git://git.linaro.org/people/shawnguo/linux-2.6 into next/cleanup From Shawn Guo <shawn.guo@linaro.org>: The mxs cleanup for 3.10: * Clean up timer code and move it into drivers/clocksource * Clean up icoll code and move it into drivers/irqchip * Clean up clock code to not include <mach/*> headers * Clean up rtc-stmp3xxx, mxs-lradc and mxs-saif to not include <mach/*> headers * Clean up mach-mxs code to get it prepared for multiplatform support * tag 'mxs-cleanup-3.10' of git://git.linaro.org/people/shawnguo/linux-2.6: (26 commits) clocksource: mxs_timer: Add semicolon at end of line ARM: mxs: remove unused headers ARM: mxs: merge imx23 and imx28 into one machine_desc ARM: mxs: remove common.h ARM: mxs: move mxs_get_ocotp() into mach-mxs.c ARM: mxs: remove mm.c ARM: mxs: use debug_ll_io_init for low-level debug ARM: mxs: get ocotp base address from device tree ARM: mxs: remove system.c ARM: mxs: get reset address from device tree ARM: mxs: remove empty hardware.h ASoC: mxs-saif: remove mach header inclusion iio: mxs-lradc: remove unneeded mach header inclusion rtc: stmp3xxx: use stmp_reset_block() instead clk: mxs: remove the use of mach level IO accessor clk: mxs: get base address from device tree ARM: mxs: remove unneeded mach-types.h inclusion ARM: mxs: move icoll driver into drivers/irqchip ARM: mxs: call stmp_reset_block() in icoll ARM: mxs: get icoll base address from device tree ... Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-04-08irqchip: sunxi: Rename sunxi to sun4iMaxime Ripard3-150/+150
During the introduction of the Allwinner SoC platforms, sunxi was initially meant as a generic name for all the variants of the Allwinner SoC. It was ok at the time of the support of only the A10 and A13 that looks pretty much the same, but it's beginning to be troublesome with the future addition of the Allwinner A31 (sun6i) that is quite different, and would introduce some weird logic, where sunxi would actually mean in some case sun4i and sun5i but without sun6i... Moreover, it makes the compatible strings naming scheme not consistent with other architectures, where usually for this kind of compability, we just use the oldest SoC name that has this IP, so let's do just this. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2013-04-08irqchip: sunxi: Make use of the IRQCHIP_DECLARE macroMaxime Ripard1-12/+10
This allows to remove some boilerplate code. At the same time, call the set_handle_irq function in the initialization function of the irqchip, so that we can remove it from the machine declaration. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2013-04-03Merge branch 'gic/cleanup' into next/cleanupOlof Johansson1-0/+1
* gic/cleanup: irqchip: vic: add include of linux/irq.h Signed-off-by: Olof Johansson <olof@lixom.net>
2013-04-03irqchip: vic: add include of linux/irq.hOlof Johansson1-0/+1
With the include of <asm/mach/irq.h> removed, the implicit include of linux/irq.h also disappeared. Add it back. Signed-off-by: Olof Johansson <olof@lixom.net>
2013-04-02Merge branch 'gic' of ↵Olof Johansson3-11/+26
git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64 into next/cleanup * 'gic' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: irqchip: gic: Perform the gic_secondary_init() call via CPU notifier irqchip: gic: Call handle_bad_irq() directly arm: Move chained_irq_(enter|exit) to a generic file arm: Move the set_handle_irq and handle_arch_irq declarations to asm/irq.h + Linux 3.9-rc3 Signed-off-by: Olof Johansson <olof@lixom.net>
2013-04-02irqchip: irq-gic: Fix checkpatch errorsSachin Kamat1-2/+2
Fixes the following errors: ERROR: do not initialise statics to 0 or NULL ERROR: space required after that ',' (ctx:VxV) Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-04-01ARM: mxs: move icoll driver into drivers/irqchipShawn Guo2-0/+122
Move icoll.c into drivers/irqchip as irq-mxs.c, and along with the renaming, change the driver to use IRQCHIP_DECLARE. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-03-27irq: versatile: rename Kconfig macro in printkPaul Bolle1-1/+1
Commit 2389d5014342e9535aad212d0c68d439aaf534ba ("ARM: plat-versatile: move FPGA irq driver to drivers/irqchip") changed Kconfig symbol PLAT_VERSATILE_FPGA_IRQ_NR to VERSATILE_FPGA_IRQ_NR. It forgot to change one reference to the related macro in a printk. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-03-26irqchip: gic: fix irq_trigger returnAbhijeet Dharmapurikar1-1/+2
The genirq layer expects a 0 in case that the retrigger function is not able to resend the irq in hardware, but the code is returning -ENXIO. Fix it. [ tglx: Reworked comment and changelog ] Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1363734349-32635-1-git-send-email-sboyd@codeaurora.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2013-03-26irqchip: gic: Perform the gic_secondary_init() call via CPU notifierCatalin Marinas1-7/+21
All the calls to gic_secondary_init() pass 0 as the first argument. Since this function is called on each CPU when starting, it can be done in a platform-independent way via a CPU notifier registered by the GIC code. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Stephen Warren <swarren@nvidia.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Tested-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Tested-by: Dinh Nguyen <dinguyen@altera.com> Acked-by: Nicolas Pitre <nico@linaro.org> Tested-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: David Brown <davidb@codeaurora.org> Cc: Bryan Huntsman <bryanh@codeaurora.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Will Deacon <will.deacon@arm.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Barry Song <baohua.song@csr.com>
2013-03-26irqchip: gic: Call handle_bad_irq() directlyCatalin Marinas1-2/+1
Previously, the gic_handle_cascade_irq() function was calling the ARM-specific do_bad_IRQ() function which calls handle_bad_irq() after acquiring the desk->lock. Locking the cascaded IRQ desc is not needed for error reporting, so just call handle_bad_irq() directly. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Tested-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Rob Herring <rob.herring@calxeda.com>
2013-03-26arm: Move chained_irq_(enter|exit) to a generic fileCatalin Marinas2-0/+2
These functions have been introduced by commit 10a8c383 (irq: introduce entry and exit functions for chained handlers) in asm/mach/irq.h. This patch moves them to linux/irqchip/chained_irq.h so that generic irqchip drivers do not rely on architecture specific header files. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Tested-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Rob Herring <rob.herring@calxeda.com>
2013-03-26arm: Move the set_handle_irq and handle_arch_irq declarations to asm/irq.hCatalin Marinas1-1/+1
This patch prepares the removal of <asm/mach/irq.h> include in the GIC and VIC irqchip drivers. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Tested-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Rob Herring <rob.herring@calxeda.com>
2013-03-05irqchip: fix typo when moving gic_raise_softirq()Javi Merino1-1/+1
In b1cffebf (ARM: GIC: remove direct use of gic_raise_softirq) gic_raise_softirq() was moved inside arch/arm/common/gic.c but in the process it reverted by mistake a change to that function made by 384a290 (ARM: gic: use a private mapping for CPU target interfaces). This breaks multicluster systems on ARM. This patch fixes the typo. Signed-off-by: Javi Merino <javi.merino@arm.com> Acked-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-03-04Merge tag 'metag-v3.9-rc1-v4' of ↵Linus Torvalds3-0/+1213
git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag Pull new ImgTec Meta architecture from James Hogan: "This adds core architecture support for Imagination's Meta processor cores, followed by some later miscellaneous arch/metag cleanups and fixes which I kept separate to ease review: - Support for basic Meta 1 (ATP) and Meta 2 (HTP) core architecture - A few fixes all over, particularly for symbol prefixes - A few privilege protection fixes - Several cleanups (setup.c includes, split out a lot of metag_ksyms.c) - Fix some missing exports - Convert hugetlb to use vm_unmapped_area() - Copy device tree to non-init memory - Provide dma_get_sgtable()" * tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag: (61 commits) metag: Provide dma_get_sgtable() metag: prom.h: remove declaration of metag_dt_memblock_reserve() metag: copy devicetree to non-init memory metag: cleanup metag_ksyms.c includes metag: move mm/init.c exports out of metag_ksyms.c metag: move usercopy.c exports out of metag_ksyms.c metag: move setup.c exports out of metag_ksyms.c metag: move kick.c exports out of metag_ksyms.c metag: move traps.c exports out of metag_ksyms.c metag: move irq enable out of irqflags.h on SMP genksyms: fix metag symbol prefix on crc symbols metag: hugetlb: convert to vm_unmapped_area() metag: export clear_page and copy_page metag: export metag_code_cache_flush_all metag: protect more non-MMU memory regions metag: make TXPRIVEXT bits explicit metag: kernel/setup.c: sort includes perf: Enable building perf tools for Meta metag: add boot time LNKGET/LNKSET check metag: add __init to metag_cache_probe() ...
2013-03-03metag: Internal and external irqchipsJames Hogan3-0/+1213
Meta core internal interrupts (from HWSTATMETA and friends) are vectored onto the TR1 core trigger for the current thread. This is demultiplexed in irq-metag.c to individual Linux IRQs for each internal interrupt. External SoC interrupts (from HWSTATEXT and friends) are vectored onto the TR2 core trigger for the current thread. This is demultiplexed in irq-metag-ext.c to individual Linux IRQs for each external SoC interrupt. The external irqchip has devicetree bindings for configuring the number of irq banks and the type of masking available. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Rob Landley <rob@landley.net> Cc: Dom Cobley <popcornmix@gmail.com> Cc: Simon Arlott <simon@fire.lp0.eu> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: devicetree-discuss@lists.ozlabs.org Cc: linux-doc@vger.kernel.org
2013-02-22Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds8-1/+1661
Pull ARM SoC cleanups from Arnd Bergmann: "A large number of cleanups, all over the platforms. This is dominated largely by the Samsung platforms (s3c, s5p, exynos) and a few of the others moving code out of arch/arm into more appropriate subsystems. The clocksource and irqchip drivers are now abstracted to the point where platforms that are already cleaned up do not need to even specify the driver they use, it can all get configured from the device tree as we do for normal device drivers. The clocksource changes basically touch every single platform in the process. We further clean up the use of platform specific header files here, with the goal of turning more of the platforms over to being "multiplatform" enabled, which implies that they cannot expose their headers to architecture independent code any more. It is expected that no functional changes are part of the cleanup. The overall reduction in total code lines is mostly the result of removing broken and obsolete code." * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (133 commits) ARM: mvebu: correct gated clock documentation ARM: kirkwood: add missing include for nsa310 ARM: exynos: move exynos4210-combiner to drivers/irqchip mfd: db8500-prcmu: update resource passing drivers/db8500-cpufreq: delete dangling include ARM: at91: remove NEOCORE 926 board sunxi: Cleanup the reset code and add meaningful registers defines ARM: S3C24XX: header mach/regs-mem.h local ARM: S3C24XX: header mach/regs-power.h local ARM: S3C24XX: header mach/regs-s3c2412-mem.h local ARM: S3C24XX: Remove plat-s3c24xx directory in arch/arm/ ARM: S3C24XX: transform s3c2443 subirqs into new structure ARM: S3C24XX: modify s3c2443 irq init to initialize all irqs ARM: S3C24XX: move s3c2443 irq code to irq.c ARM: S3C24XX: transform s3c2416 irqs into new structure ARM: S3C24XX: modify s3c2416 irq init to initialize all irqs ARM: S3C24XX: move s3c2416 irq init to common irq code ARM: S3C24XX: Modify s3c_irq_wake to use the hwirq property ARM: S3C24XX: Move irq syscore-ops to irq-pm clocksource: always define CLOCKSOURCE_OF_DECLARE ...
2013-02-13ARM: exynos: move exynos4210-combiner to drivers/irqchipRob Herring2-0/+231
Exynos boot is broken with commit 0529e315 (ARM: use common irqchip_init for GIC init). This commit split the irqchip initialization into 2 calls to of_irq_init. This does not work because of_irq_init requires interrupt parents to be in the match list. Rather than reverting exynos changes, make it do the proper thing by using IRQCHIP_DECLARE. This requires moving the combiner code to drivers/irqchip. Reported-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-samsung-soc@vger.kernel.org Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-12irqchip: Move ARM vic.h to include/linux/irqchip/arm-vic.hRob Herring1-1/+1
Now that we have VIC moved to drivers/irqchip and all VIC DT init for platforms using irqchip_init, move gic.h and update the remaining includes. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ryan Mallon <rmallon@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Alessandro Rubini <rubini@unipv.it> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: STEricsson <STEricsson_nomadik_linux@list.st.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: linux-samsung-soc@vger.kernel.org
2013-01-12ARM: spear: use common irqchip_init functionRob Herring1-0/+5
Convert spear DT irq initialization over to use common irqchip_init function. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: Rajeev Kumar <rajeev-dlh.kumar@st.com>
2013-01-12irqchip: Move ARM VIC to drivers/irqchipRob Herring3-0/+505
Now that we have drivers/irqchip, move VIC irqchip to drivers/irqchip. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de>
2013-01-12irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.hRob Herring1-1/+1
Now that we have GIC moved to drivers/irqchip and all GIC DT init for platforms using irqchip_init, move gic.h and update the remaining includes. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Anton Vorontsov <avorontsov@mvista.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Samuel Ortiz <sameo@linux.intel.com>
2013-01-12irqchip: Move ARM GIC to drivers/irqchipRob Herring3-1/+834
Now that we have drivers/irqchip, move GIC irqchip to drivers/irqchip. This is necessary to share the GIC with arm and arm64. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de>
2013-01-10irqchip: add basic infrastructureThomas Petazzoni4-0/+65
With the recent creation of the drivers/irqchip/ directory, it is desirable to move irq controller drivers here. At the moment, the only driver here is irq-bcm2835, the driver for the irq controller found in the ARM BCM2835 SoC, present in Rasberry Pi systems. This irq controller driver was exporting its initialization function and its irq handling function through a header file in <linux/irqchip/bcm2835.h>. When proposing to also move another irq controller driver in drivers/irqchip, Rob Herring raised the very valid point that moving things to drivers/irqchip was good in order to remove more stuff from arch/arm, but if it means adding gazillions of headers files in include/linux/irqchip/, it would not be very nice. So, upon the suggestion of Rob Herring and Arnd Bergmann, this commit introduces a small infrastructure that defines a central irqchip_init() function in drivers/irqchip/irqchip.c, which is meant to be called as the ->init_irq() callback of ARM platforms. This function calls of_irq_init() with an array of match strings and init functions generated from a special linker section. Note that the irq controller driver initialization function is responsible for setting the global handle_arch_irq() variable, so that ARM platforms no longer have to define the ->handle_irq field in their DT_MACHINE structure. A global header, <linux/irqchip.h> is also added to expose the single irqchip_init() function to the reset of the kernel. A further commit moves the BCM2835 irq controller driver to this new small infrastructure, therefore removing the include/linux/irqchip/ directory. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Reviewed-by: Stephen Warren <swarren@wwwdotorg.org> Reviewed-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Arnd Bergmann <arnd@arndb.de> [rob.herring: reword commit message to reflect use of linker sections.] Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-12-15Merge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2-3/+320
Pull ARM SoC device-tree updates, take 2, from Olof Johansson: "This branch contains device-tree updates for the SPEAr platform. They had dependencies on earlier branches from this merge window, which is why they were broken out in a separate branch." * tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: SPEAr3xx: Shirq: Move shirq controller out of plat/ ARM: SPEAr320: DT: Add SPEAr 320 HMI board support ARM: SPEAr3xx: DT: add shirq node for interrupt multiplexor ARM: SPEAr3xx: shirq: simplify and move the shared irq multiplexor to DT ARM: SPEAr1310: Fix AUXDATA for compact flash controller ARM: SPEAr13xx: Remove fields not required for ssp controller ARM: SPEAr1310: Move 1310 specific misc register into machine specific files ARM: SPEAr: DT: Update device nodes ARM: SPEAr: DT: add uart state to fix warning ARM: SPEAr: DT: Modify DT bindings for STMMAC ARM: SPEAr: DT: Fix existing DT support ARM: SPEAr: DT: Update partition info for MTD devices ARM: SPEAr: DT: Update pinctrl list ARM: SPEAr13xx: DT: Add spics gpio controller nodes
2012-12-08Merge tag 'sunxi-fixes-for-3.8' of git://github.com/mripard/linux into next/socOlof Johansson1-1/+2
From Maxime Ripard: Fixes in sunXi related drivers for 3.8 * tag 'sunxi-fixes-for-3.8' of git://github.com/mripard/linux: irqchip: irq-sunxi: Add terminating entry for sunxi_irq_dt_ids clocksource: sunxi_timer: Add terminating entry for sunxi_timer_dt_ids
2012-12-04irqchip: irq-sunxi: Add terminating entry for sunxi_irq_dt_idsAxel Lin1-1/+2
The of_device_id table is supposed to be zero-terminated. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2012-11-30Merge branch 'integrator/irq' into next/socOlof Johansson1-1/+0
Picking up one compilation warning fix for integrator. From Linus Walleij: * integrator/irq: irq: versatile: delete dangling variable Signed-off-by: Olof Johansson <olof@lixom.net>
2012-11-30irq: versatile: delete dangling variableLinus Walleij1-1/+0
This one was just creating noise like this: drivers/irqchip/irq-versatile-fpga.c: In function 'fpga_irq_of_init': drivers/irqchip/irq-versatile-fpga.c:180:24: warning: unused variable 'f' Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2012-11-30Merge branch 'next/cam-samsung' of ↵Olof Johansson1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc From Kukjin Kim: Just adding camif gpio setup and clkdev. * 'next/cam-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: S3C24XX: Add clkdev entry for camif-upll clock ARM: SAMSUNG: Add s3c24xx/s3c64xx CAMIF GPIO setup helpers + Linux 3.7-rc6 Conflicts due to the 3.7-rc6 sync: arch/arm/mach-highbank/system.c include/linux/clk-provider.h, resolved as in other branches. Signed-off-by: Olof Johansson <olof@lixom.net>
2012-11-26ARM: SPEAr3xx: Shirq: Move shirq controller out of plat/Viresh Kumar2-1/+318
This patch moves shirq interrupt controllers driver and header file out of plat-spear directory. It is moved to drivers/irqchip/ directory. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2012-11-21Merge tag 'tags/sunxi-support-for-3.8' of git://github.com/mripard/linux ↵Olof Johansson2-0/+151
into next/soc From Maxime Ripard: Allwinner SoC support for 3.8 * tag 'tags/sunxi-support-for-3.8' of git://github.com/mripard/linux: ARM: sunxi: Add entry to MAINTAINERS ARM: sunxi: Add device tree for the A13 and the Olinuxino board ARM: sunxi: Add earlyprintk support ARM: sunxi: Add basic support for Allwinner A1x SoCs irqchip: sunxi: Add irq controller driver clocksource: sunxi: Add Allwinner A1X Timer Driver clk: sunxi: Add dummy fixed rate clock for Allwinner A1X SoCs Signed-off-by: Olof Johansson <olof@lixom.net>
2012-11-17irqchip: sunxi: Add irq controller driverMaxime Ripard2-0/+151
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> CC: Thomas Gleixner <tglx@linutronix.de>
2012-11-06irqchip: irq-bcm2835: Add terminating entry for of_device_id tableAxel Lin1-1/+2
The of_device_id table is supposed to be zero-terminated. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2012-11-04ARM: plat-versatile: move FPGA irq driver to drivers/irqchipLinus Walleij3-1/+213
This moves the Versatile FPGA interrupt controller driver, used in the Integrator/AP, Integrator/CP and some Versatile boards, out of arch/arm/plat-versatile and down to drivers/irqchip where we have consensus that such drivers belong. The header file is consequently moved to <linux/platform_data/irq-versatile-fpga.h>. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-09-24irqchip: fill in empty KconfigStephen Warren1-0/+1
Commit 89214f0 "ARM: bcm2835: add interrupt controller driver" added an empty drivers/irqchip/Kconfig. Empty files apparently don't work well with git (sometimes, with some versions?) so add some dummy content to resolve this issue. Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2012-09-20ARM: bcm2835: add interrupt controller driverSimon Arlott3-0/+224
The BCM2835 contains a custom interrupt controller, which supports 72 interrupt sources using a 2-level register scheme. The interrupt controller, or the HW block containing it, is referred to occasionally as "armctrl" in the SoC documentation, hence the symbol naming in the code. This patch was extracted from git://github.com/lp0/linux.git branch rpi-split as of 2012/09/08, and modified as follows: * s/bcm2708/bcm2835/. * Modified device tree vendor prefix. * Moved implementation to drivers/irchip/. * Added devicetree documentation, and hence removed list of IRQs from bcm2835.dtsi. * Changed shift in MAKE_HWIRQ() and HWIRQ_BANK() from 8 to 5 to reduce the size of the hwirq space, and pass the total size of the hwirq space to irq_domain_add_linear(), rather than just the number of valid hwirqs; the two are different due to the hwirq space being sparse. * Added the interrupt controller DT node to the top-level of the DT, rather than nesting it inside a /axi node. Hence, changed the reg value since /axi had a ranges property. This seems simpler to me, but I'm not sure if everyone will like this change or not. * Don't set struct irq_domain_ops.map = irq_domain_simple_map, hence removing the need to patch include/linux/irqdomain.h or kernel/irq/irqdomain.c. * Simplified armctrl_of_init() using of_iomap(). * Removed unused IS_VALID_BANK()/IS_VALID_IRQ() macros. * Renamed armctrl_handle_irq() to prevent possible symbol clashes. * Made armctrl_of_init() static. * Removed comment "Each bank is registered as a separate interrupt controller" since this is no longer true. * Removed FSF address from license header. * Added my name to copyright header. Signed-off-by: Chris Boot <bootc@bootc.net> Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: Dom Cobley <popcornmix@gmail.com> Signed-off-by: Dom Cobley <dc4@broadcom.com> Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Arnd Bergmann <arnd@arndb.de>