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2011-08-03cpuidle: replace xen access to x86 pm_idle and default_idleLen Brown
When a Xen Dom0 kernel boots on a hypervisor, it gets access to the raw-hardware ACPI tables. While it parses the idle tables for the hypervisor's beneift, it uses HLT for its own idle. Rather than have xen scribble on pm_idle and access default_idle, have it simply disable_cpuidle() so acpi_idle will not load and architecture default HLT will be used. cc: xen-devel@lists.xensource.com Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2011-08-03mrst_pmu: driver for Intel Moorestown Power Management UnitLen Brown
The Moorestown (MRST) Power Management Unit (PMU) driver directs the SOC power states in the "Langwell" south complex (SCU). It hooks pci_platform_pm_ops[] and thus observes all PCI ".set_state" requests. For devices in the SC, the pmu driver translates those PCI requests into the appropriate commands for the SCU. The PMU driver helps implement S0i3, a deep system idle power idle state. Entry into S0i3 is via cpuidle, just like regular processor c-states. S0i3 depends on pre-conditions including uni-processor, graphics off, and certain IO devices in the SC must be off. If those pre-conditions are met, then the PMU allows cpuidle to enter S0i3, otherwise such requests are demoted, either to Atom C4 or Atom C6. This driver is based on prototype work by Bruce Flemming, Illyas Mansoor, Rajeev D. Muralidhar, Vishwesh M. Rudramuni, Hari Seshadri and Sujith Thomas. The current driver also includes contributions from H. Peter Anvin, Arjan van de Ven, Kristen Accardi, and Yong Wang. Thanks for additional review feedback from Alan Cox and Randy Dunlap. Acked-by: Alan Cox <alan@linux.intel.com> Acked-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2011-07-21Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: sparc,kgdbts: fix compile regression with kgdb test suite
2011-07-21sparc,kgdbts: fix compile regression with kgdb test suiteJason Wessel
Commit 63ab25ebbc (kgdbts: unify/generalize gdb breakpoint adjustment) introduced a compile regression on sparc. kgdbts.c: In function 'check_and_rewind_pc': kgdbts.c:307: error: implicit declaration of function 'instruction_pointer_set' Simply add the correct macro definition for instruction pointer on the Sparc architecture. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Acked-by: David S. Miller <davem@davemloft.net>
2011-07-21x86: Make Dell Latitude E6420 use reboot=pciH. Peter Anvin
Yet another variant of the Dell Latitude series which requires reboot=pci. From the E5420 bug report by Daniel J Blueman: > The E6420 is affected also (same platform, different casing and > features), which provides an external confirmation of the issue; I can > submit a patch for that later or include it if you prefer: > http://linux.koolsolutions.com/2009/08/04/howto-fix-linux-hangfreeze-during-reboots-and-restarts/ Reported-by: Daniel J Blueman <daniel.blueman@gmail.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: <stable@kernel.org>
2011-07-21x86: Make Dell Latitude E5420 use reboot=pciDaniel J Blueman
Rebooting on the Dell E5420 often hangs with the keyboard or ACPI methods, but is reliable via the PCI method. [ hpa: this was deferred because we believed for a long time that the recent reshuffling of the boot priorities in commit 660e34cebf0a11d54f2d5dd8838607452355f321 fixed this platform. Unfortunately that turned out to be incorrect. ] Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com> Link: http://lkml.kernel.org/r/1305248699-2347-1-git-send-email-daniel.blueman@gmail.com Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: <stable@kernel.org>
2011-07-20Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86. reboot: Make Dell Latitude E6320 use reboot=pci x86, doc only: Correct real-mode kernel header offset for init_size x86: Disable AMD_NUMA for 32bit for now
2011-07-19Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: davinci: DM365 EVM: fix video input mux bits ARM: davinci: Check for NULL return from irq_alloc_generic_chip arm: davinci: Fix low level gpio irq handlers' argument
2011-07-19davinci: DM365 EVM: fix video input mux bitsJon Povey
Video input mux settings for tvp7002 and imager inputs were swapped. Comment was correct. Tested on EVM with tvp7002 input. Signed-off-by: Jon Povey <jon.povey@racelogic.co.uk> Acked-by: Manjunath Hadli <manjunath.hadli@ti.com> Cc: stable@kernel.org Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2011-07-19ARM: davinci: Check for NULL return from irq_alloc_generic_chipTodd Poynor
Avoid NULL dereference of irq_alloc_generic_chip return in low memory conditions. Signed-off-by: Todd Poynor <toddpoynor@google.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2011-07-17Merge branch 'pm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 * 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PM / MIPS: Convert i8259.c to using syscore_ops
2011-07-17Merge branch 's5p-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung * 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: SAMSUNG: DMA Cleanup as per sparse ARM: SAMSUNG: Check NULL return from irq_alloc_generic_chip
2011-07-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc: sun4m SMP: fix wrong shift instruction in IPI handler sparc32,leon: Added __init declaration to leon_flush_needed() sparc/irqs: Do not trace arch_local_{*,irq_*} functions
2011-07-16sparc: sun4m SMP: fix wrong shift instruction in IPI handlerWill Simoneau
This shift instruction appears to be shifting in the wrong direction. Without this change, my SparcStation-20MP hangs just after bringing up the second CPU: Entering SMP Mode... Starting CPU 2 at f02b4e90 Brought up 2 CPUs Total of 2 processors activated (99.52 BogoMIPS). *** stuck *** Signed-off-by: Will Simoneau <simoneau@ele.uri.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-16ARM: SAMSUNG: DMA Cleanup as per sparseSangwook Lee
Function declaration differs between file: dma.c and file:dma.h and SPARSE (Documentation/sparse.txt) gives error messages All dma channels are members of 'enum dma_ch' and not 'unsigned int' Please have a look at channel definitions in: arch/arm/mach-s3c64xx/include/mach/dma.h arch/arm/plat-samsung/include/plat/s3c-dma-pl330.h arch/arm/mach-s3c2410/include/mach/dma.h So all arguments should be of type 'enum dma_ch' Signed-off-by: Sangwook Lee <sangwook.lee@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-16ARM: SAMSUNG: Check NULL return from irq_alloc_generic_chipTodd Poynor
Signed-off-by: Todd Poynor <toddpoynor@google.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-15ARM: fix regression in IXP4xx clocksourceRichard Cochran
Commit 234b6ceddb4fc2a4bc5b9a7670f070f6e69e0868 clocksource: convert ARM 32-bit up counting clocksources broke the build for ixp4xx and made big endian operation impossible. This commit restores the original behaviour. Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl> [ Thomas says that we might want to have generic BE accessor functions to the MMIO clock source, but that hasn't happened yet, so in the meantime this seems to be the short-term fix for the particular problem - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-16PM / MIPS: Convert i8259.c to using syscore_opsRafael J. Wysocki
The code in arch/mips/kernel/i8259.c still hasn't been converted to using struct syscore_ops instead of a sysdev for resume and shutdown. As a result, this code doesn't build any more after suspend, resume and shutdown callbacks have been removed from struct sysdev_class. Fix this problem by converting i8259.c to using syscore_ops. Reported-and-tested-by: Roland Vossen <rvossen@broadcom.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-12x86. reboot: Make Dell Latitude E6320 use reboot=pciMaxime Ripard
The Dell Latitude E6320 doesn't reboot unless reboot=pci is set. Force it thanks to DMI. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Link: http://lkml.kernel.org/r/1309269451-4966-1-git-send-email-maxime.ripard@free-electrons.com Cc: Matthew Garrett <mjg@redhat.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2011-07-12Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/mm: Fix memory_block_size_bytes() for non-pseries mm: Move definition of MIN_MEMORY_BLOCK_SIZE to a header
2011-07-12Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: pcmcia: pxa2xx/vpac270: free gpios on exist rather than requesting ARM: pxa/raumfeld: fix device name for codec ak4104 ARM: pxa/raumfeld: display initialisation fixes ARM: pxa/raumfeld: adapt to upcoming hardware change ARM: pxa: fix gpio_to_chip() clash with gpiolib namespace genirq: replace irq_gc_ack() with {set,clr}_bit variants (fwd) arm: mach-vt8500: add forgotten irq_data conversion ARM: pxa168: correct nand pmu setting ARM: pxa910: correct nand pmu setting ARM: pxa: fix PGSR register address calculation
2011-07-12arm: davinci: Fix low level gpio irq handlers' argumentIdo Yariv
Commit 7416401 ("arm: davinci: Fix fallout from generic irq chip conversion") introduced a bug, causing low level interrupt handlers to get a bogus irq number as an argument. The gpio irq handler falsely assumes that the handler data is the irq base number and that is no longer true. Set the irq handler data to be a pointer to the corresponding gpio controller. The chained irq handler can then use it to extract both the irq base number and the gpio registers structure. Signed-off-by: Ido Yariv <ido@wizery.com> CC: Thomas Gleixner <tglx@linutronix.de> [nsekhar@ti.com: renamed "ctl" to "d", simplified indexing logic for chips and took care of odd bank handling in irq handler] Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2011-07-12powerpc/mm: Fix memory_block_size_bytes() for non-pseriesBenjamin Herrenschmidt
Just compiling pseries in the kernel causes it to override memory_block_size_bytes() regardless of what is the runtime platform. This cleans up the implementation of that function, fixing a bug or two while at it, so that it's harmless (and potentially useful) for other platforms. Without this, bugs in that code would trigger a WARN_ON() in drivers/base/memory.c when booting some different platforms. If/when we have another platform supporting memory hotplug we might want to either move that out to a generic place or make it a ppc_md. callback. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-07-12mm: Move definition of MIN_MEMORY_BLOCK_SIZE to a headerBenjamin Herrenschmidt
The macro MIN_MEMORY_BLOCK_SIZE is currently defined twice in two .c files, and I need it in a third one to fix a powerpc bug, so let's first move it into a header Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Ingo Molnar <mingo@elte.hu>
2011-07-11Merge branch 'fix' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into fixes
2011-07-11x86: Disable AMD_NUMA for 32bit for nowTejun Heo
Commit 2706a0bf7b ("x86, NUMA: Enable CONFIG_AMD_NUMA on 32bit too") enabled AMD NUMA for 32bit too. Unfortunately, SPARSEMEM on 32bit had rather coarse (512MiB) addr->node mapping granularity due to lack of space in page->flags. This led to boot failure on certain AMD NUMA machines which had 128MiB alignment on nodes. Patches to properly detect this condition and reject NUMA configuration are posted[1] but deemed too pervasive for merge at this point (-rc6). Disable AMD NUMA for 32bit for now and re-enable once the detection logic is merged. [1] http://thread.gmane.org/gmane.linux.kernel/1161279/focus=1162583 Reported-by: Hans Rosenfeld <hans.rosenfeld@amd.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Conny Seidel <conny.seidel@amd.com> Link: http://lkml.kernel.org/r/20110711083432.GC943@htj.dyndns.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-11ARM: pxa/raumfeld: fix device name for codec ak4104Daniel Mack
In commit f0fba2ad (ASoC: multi-component - ASoC Multi-Component Support), the name of the ak4104 codec driver was changed without amending the platform code which uses it as well. Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2011-07-11ARM: pxa/raumfeld: display initialisation fixesSven Neumann
The display requires some milliseconds between GPIO_TFT_VA_EN and GPIO_DISPLAY_ENABLE. Reorder initialisation to comply with the display spec. Also tune timings for better compliance with the spec. Signed-off-by: Sven Neumann <s.neumann@raumfeld.com> Acked-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2011-07-11ARM: pxa/raumfeld: adapt to upcoming hardware changeSven Neumann
The backlight control is going to change back to PWM in the upcoming Raumfeld Controller hardware revision. Signed-off-by: Sven Neumann <s.neumann@raumfeld.com> Acked-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2011-07-11ARM: pxa: fix gpio_to_chip() clash with gpiolib namespaceLinus Walleij
The PXA platform code has a static inline helper called gpio_to_chip which clashes with the gpiolib namespace if we try to expose the function with the same name from gpiolib, and it's still confusing even if we don't do that. So rename it to gpio_to_pxachip(). Reported-by: H Hartley Sweeten <hartleys@visionengravers.com> Cc: Eric Miao <eric.miao@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2011-07-10Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm: ARM: 6994/1: smp_twd: Fix typo in 'twd_timer_rate' printing ARM: 6987/1: l2x0: fix disabling function to avoid deadlock ARM: 6966/1: ep93xx: fix inverted RTS/DTR signals on uart1 ARM: 6980/1: mmci: use StartBitErr to detect bad connections ARM: 6979/1: mach-vt8500: add forgotten irq_data conversion ARM: move memory layout sanity checking before meminfo initialization ARM: 6990/1: MAINTAINERS: add entry for ARM PMU profiling and debugging ARM: 6989/1: perf: do not start the PMU when no events are present ARM: dmabounce: fix map_single() error return value
2011-07-08Merge branch 's5p-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung * 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: S3C2440: fix section mismatch on mini2440 ARM: S3C24XX: drop return codes in void function of dma.c ARM: S3C24XX: don't use uninitialized variable in dma.c ARM: EXYNOS4: Set appropriate I2C device variant ARM: S5PC100: Fix for compilation error spi/s3c64xx: Bug fix for SPI with different FIFO level ARM: SAMSUNG: Add tx_st_done variable ARM: EXYNOS4: Address a section mismatch w/ suspend issue. ARM: S5P: Fix bug on init of PWMTimers for HRTimer ARM: SAMSUNG: header file revised to prevent declaring duplicated ARM: EXYNOS4: fix improper gpio configuration ARM: EXYNOS4: Fix card detection for sdhci 0 and 2
2011-07-08Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: omap: drop __initdata tags from static struct platform_device declarations
2011-07-08ARM: S3C2440: fix section mismatch on mini2440Wolfram Sang
If mini2440_init() is in __init, mini2440_parse_features() should also be in __init. Fixes: (.text+0x9adc): Section mismatch in reference from the function mini2440_parse_features.clone.0() to the (unknown reference) .init.data:(unknown) The function mini2440_parse_features.clone.0() references the (unknown reference) __initdata (unknown). Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Michel Pollet <buserror@gmail.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-08ARM: S3C24XX: drop return codes in void function of dma.cWolfram Sang
Commit bb072c3c (ARM / Samsung: Use struct syscore_ops for "core" power management) turned s3c2410_dma_resume_chan() from int to void. So, drop the actual return values, too. Fixes: arch/arm/plat-s3c24xx/dma.c: In function 's3c2410_dma_resume_chan': arch/arm/plat-s3c24xx/dma.c:1238:3: warning: 'return' with a value, in function returning void arch/arm/plat-s3c24xx/dma.c:1250:2: warning: 'return' with a value, in function returning void Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-08ARM: S3C24XX: don't use uninitialized variable in dma.cWolfram Sang
Commit 8970ef47 (S3C24XX: Remove hardware specific registers from DMA calls) removed the parameter dcon in s3c2410_dma_config() and calculates it on its own. So the debug-output for the old parameter can go, too. Fixes: arch/arm/plat-s3c24xx/dma.c: In function 's3c2410_dma_config': arch/arm/plat-s3c24xx/dma.c:1030:2: warning: 'dcon' is used uninitialized in this function Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-07Merge branch 'stable/bug.fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen * 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/pci: Move check for acpi_sci_override_gsi to xen_setup_acpi_sci.
2011-07-07Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Don't use the EFI reboot method by default x86, suspend: Restore MISC_ENABLE MSR in realmode wakeup x86, reboot: Acer Aspire One A110 reboot quirk x86-32, NUMA: Fix boot regression caused by NUMA init unification on highmem machines
2011-07-07Merge branches 'core-urgent-for-linus', 'perf-urgent-for-linus' and ↵Linus Torvalds
'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: debugobjects: Fix boot crash when kmemleak and debugobjects enabled * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: jump_label: Fix jump_label update for modules oprofile, x86: Fix race in nmi handler while starting counters * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Disable (revert) SCHED_LOAD_SCALE increase sched, cgroups: Fix MIN_SHARES on 64-bit boxen
2011-07-07xen/pci: Move check for acpi_sci_override_gsi to xen_setup_acpi_sci.Konrad Rzeszutek Wilk
Previously we would check for acpi_sci_override_gsi == gsi every time a PCI device was enabled. That works during early bootup, but later on it could lead to triggering unnecessarily the acpi_gsi_to_irq(..) lookup. The reason is that acpi_sci_override_gsi was declared in __initdata and after early bootup could contain bogus values. This patch moves the check for acpi_sci_override_gsi to the site where the ACPI SCI is preset. CC: stable@kernel.org Reported-by: Raghavendra D Prabhu <rprabhu@wnohang.net> Tested-by: Raghavendra D Prabhu <rprabhu@wnohang.net> [http://lists.xensource.com/archives/html/xen-devel/2011-07/msg00154.html] Suggested-by: Ian Campbell <ijc@hellion.org.uk> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-07-07genirq: replace irq_gc_ack() with {set,clr}_bit variants (fwd)Simon Guinot
This fixes a regression introduced by e59347a "arm: orion: Use generic irq chip". Depending on the device, interrupts acknowledgement is done by setting or by clearing a dedicated register. Replace irq_gc_ack() with some {set,clr}_bit variants allows to handle both cases. Note that this patch affects the following SoCs: Davinci, Samsung and Orion. Except for this last, the change is minor: irq_gc_ack() is just renamed into irq_gc_ack_set_bit(). For the Orion SoCs, the edge GPIO interrupts support is currently broken. irq_gc_ack() try to acknowledge a such interrupt by setting the corresponding cause register bit. The Orion GPIO device expect the opposite. To fix this issue, the irq_gc_ack_clr_bit() variant is used. Tested on Network Space v2. Reported-by: Joey Oravec <joravec@drewtech.com> Signed-off-by: Simon Guinot <sguinot@lacie.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-07-07arm: mach-vt8500: add forgotten irq_data conversionWolfram Sang
This platform has not been converted to 'struct irq_data' when the big pile was done. It fails to compile nowadays, because the compatibility code has gone. CC arch/arm/mach-vt8500/irq.o arch/arm/mach-vt8500/irq.c:118:2: error: unknown field 'ack' specified in initializer arch/arm/mach-vt8500/irq.c:118:2: warning: initialization from incompatible pointer type arch/arm/mach-vt8500/irq.c:119:2: error: unknown field 'mask' specified in initializer arch/arm/mach-vt8500/irq.c:119:2: warning: initialization from incompatible pointer type arch/arm/mach-vt8500/irq.c:120:2: error: unknown field 'unmask' specified in initializer arch/arm/mach-vt8500/irq.c:120:2: warning: initialization from incompatible pointer type arch/arm/mach-vt8500/irq.c:121:2: error: unknown field 'set_type' specified in initializer arch/arm/mach-vt8500/irq.c:121:2: warning: initialization from incompatible pointer type make[1]: *** [arch/arm/mach-vt8500/irq.o] Error 1 Add the missing conversion. Tested on a JayPC-Tablet. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Alexey Charkov <alchark@gmail.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-07-07ARM: 6994/1: smp_twd: Fix typo in 'twd_timer_rate' printingVitaly Kuzmichev
To get hundredths of MHz the rate needs to be divided by 10'000. Here is an example: twd_timer_rate = 123456789 Before the patch: twd_timer_rate / 1000000 = 123 (twd_timer_rate / 1000000) % 100 = 23 Result: 123.23MHz. After being fixed: twd_timer_rate / 1000000 = 123 (twd_timer_rate / 10000) % 100 = 45 Result: 123.45MHz. Signed-off-by: Vitaly Kuzmichev <vkuzmichev@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-07x86: Don't use the EFI reboot method by defaultMatthew Garrett
Testing suggests that at least some Lenovos and some Intels will fail to reboot via EFI, attempting to jump to an unmapped physical address. In the long run we could handle this by providing a page table with a 1:1 mapping of physical addresses, but for now it's probably just easier to assume that ACPI or legacy methods will be present and reboot via those. Signed-off-by: Matthew Garrett <mjg@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Alan Cox <alan@linux.intel.com> Link: http://lkml.kernel.org/r/1309985557-15350-1-git-send-email-mjg@redhat.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-06x86, suspend: Restore MISC_ENABLE MSR in realmode wakeupKees Cook
Some BIOSes will reset the Intel MISC_ENABLE MSR (specifically the XD_DISABLE bit) when resuming from S3, which can interact poorly with ebba638ae723d8a8fc2f7abce5ec18b688b791d7. In 32bit PAE mode, this can lead to a fault when EFER is restored by the kernel wakeup routines, due to it setting the NX bit for a CPU that (thanks to the BIOS reset) now incorrectly thinks it lacks the NX feature. (64bit is not affected because it uses a common CPU bring-up that specifically handles the XD_DISABLE bit.) The need for MISC_ENABLE being restored so early is specific to the S3 resume path. Normally, MISC_ENABLE is saved in save_processor_state(), but this happens after the resume header is created, so just reproduce the logic here. (acpi_suspend_lowlevel() creates the header, calls do_suspend_lowlevel, which calls save_processor_state(), so the saved processor context isn't available during resume header creation.) [ hpa: Consider for stable if OK in mainline ] Signed-off-by: Kees Cook <kees.cook@canonical.com> Link: http://lkml.kernel.org/r/20110707011034.GA8523@outflux.net Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: <stable@kernel.org> 2.6.38+
2011-07-06ARM: 6987/1: l2x0: fix disabling function to avoid deadlockWill Deacon
The l2x0_disable function attempts to writel with the l2x0_lock held. This results in deadlock when the writel contains an outer_sync call for the platform since the l2x0_lock is already held by the disable function. A further problem is that disabling the L2 without flushing it first can lead to the spin_lock operation becoming visible after the spin_unlock, causing any subsequent L2 maintenance to deadlock. This patch replaces the writel with a call to writel_relaxed in the disabling code and adds a flush before disabling in the control register, preventing livelock from occurring. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-06ARM: 6966/1: ep93xx: fix inverted RTS/DTR signals on uart1Petr Štetiar
It was discovered by Roberto Bergo, that RTS/DTR signals are inverted after the boot, because it was causing him problems with hardware controlled modem connected on ttyAM0. Todd Valentic came with this patch for the issue. Discussion: http://tech.groups.yahoo.com/group/ts-7000/message/20259 Comments from Petr Štetiar: Sorry, but forget to add Acked-by[1]: 1. https://patchwork.kernel.org/patch/873052/ Cc: Ryan Mallon <ryan@bluewatersys.com> Cc: Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Todd Valentic <todd.valentic@sri.com> Tested-by: Roberto Bergo <roberto.bergo@robson.it> Signed-off-by: Petr Štetiar <ynezz@true.cz> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-06ARM: 6979/1: mach-vt8500: add forgotten irq_data conversionWolfram Sang
This platform has not been converted to 'struct irq_data' when the big pile was done and fails to compile nowadays. Tested on a JayPC-Tablet. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Alexey Charkov <alchark@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-06ARM: pxa168: correct nand pmu settingLei Wen
The original pair of <0x01db, 208000000> is invalid. Correct it to the valid value. The 6th bit of the NFC APMU register indicates NFC works whether at 156Mhz or 78Mhz. So 0x19b indicates NFC works at 156Mhz, and 0x1db indicates it works at 78Mhz. Signed-off-by: Lei Wen <leiwen@marvell.com> Cc: stable@kernel.org Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2011-07-06ARM: pxa910: correct nand pmu settingLei Wen
The original pair of <0x01db, 208000000> is invalid. Correct to the valid value. Signed-off-by: Lei Wen <leiwen@marvell.com> Cc: stable@kernel.org Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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