linux-stable.git/drivers/irqchip, branch v3.9.2

irqchip: gic: fix irq_trigger return

2013-03-26T19:52:25+00:00

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 
Signed-off-by: Stephen Boyd 
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

irqchip: fix typo when moving gic_raise_softirq()

2013-03-05T01:15:33+00:00

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 
Acked-by: Rob Herring 
Signed-off-by: Olof Johansson

Merge tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag

2013-03-03T20:06:09+00:00

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()
  ...

metag: Internal and external irqchips

2013-03-02T20:09:48+00:00

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 
Cc: Arnd Bergmann 
Cc: Grant Likely 
Cc: Rob Herring 
Cc: Rob Landley 
Cc: Dom Cobley 
Cc: Simon Arlott 
Cc: Viresh Kumar 
Cc: Maxime Ripard 
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linux-doc@vger.kernel.org

Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2013-02-21T22:58:40+00:00

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
  ...

ARM: exynos: move exynos4210-combiner to drivers/irqchip

2013-02-12T22:51:10+00:00

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 
Signed-off-by: Rob Herring 
Cc: Kukjin Kim 
Cc: Russell King 
Cc: Thomas Gleixner 
Cc: linux-samsung-soc@vger.kernel.org
Signed-off-by: Olof Johansson

irqchip: Move ARM vic.h to include/linux/irqchip/arm-vic.h

2013-01-12T16:52:16+00:00

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 
Cc: Thomas Gleixner 
Cc: Hartley Sweeten 
Cc: Ryan Mallon 
Cc: Russell King 
Cc: Alessandro Rubini 
Acked-by: Linus Walleij 
Cc: STEricsson 
Cc: Ben Dooks 
Cc: Kukjin Kim 
Cc: linux-samsung-soc@vger.kernel.org

ARM: spear: use common irqchip_init function

2013-01-12T16:52:15+00:00

Convert spear DT irq initialization over to use common irqchip_init
function.

Signed-off-by: Rob Herring 
Cc: Viresh Kumar 
Cc: Shiraz Hashim 
Cc: Rajeev Kumar

irqchip: Move ARM VIC to drivers/irqchip

2013-01-12T16:52:14+00:00

Now that we have drivers/irqchip, move VIC irqchip to drivers/irqchip.

Signed-off-by: Rob Herring 
Cc: Russell King 
Cc: Thomas Gleixner

irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.h

2013-01-12T16:47:32+00:00

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 
Cc: Thomas Gleixner 
Cc: Russell King 
Cc: Anton Vorontsov 
Cc: Kukjin Kim 
Cc: Sascha Hauer 
Cc: David Brown 
Cc: Daniel Walker 
Cc: Bryan Huntsman 
Cc: Tony Lindgren 
Cc: Paul Mundt 
Cc: Magnus Damm 
Cc: Viresh Kumar 
Cc: Shiraz Hashim 
Cc: Stephen Warren 
Cc: Srinidhi Kasagar 
Cc: Linus Walleij 
Cc: Samuel Ortiz