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2009-11-23ARM: dma-mapping: split dma_unmap_page() from dma_unmap_single()Russell King1-3/+18
We will need to treat dma_unmap_page() differently from dma_unmap_single() Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Tested-By: Jamie Iles <jamie@jamieiles.com>
2009-10-02ARM: 5735/1: sa1111: CodingStyle cleanupsHartley Sweeten1-13/+12
EXPORT_* macros should follow immediately after the closing function brace line. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Kristoffer Ericson <kristoffer.ericson@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-09-22Merge branch 'master' into for-linusRussell King1-0/+1
2009-09-21ARM: 5711/1: locomo.c: CodingStyle cleanupsHartley Sweeten1-10/+7
EXPORT* macros should follow immediately after the closing function brace line. The prototype for locomo_chip_driver() is not needed since the static (inline) function is located earlier in the file. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-09-15ARM: 5696/1: Include device.h in VIC driverLinus Walleij1-0/+1
Currently build with the next head fails on archs using PL190 VIC because when we include amba/bus.h we need to include device.h first. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-09-12Merge branch 'master' into develRussell King1-0/+1
2009-09-12ARM: 5636/1: Move vendor enum to AMBA includeLinus Walleij1-8/+4
This moves the primecell vendor enum definition inside vic.c out to linux/amba/bus.h where it belongs and replace any occurances of specific vendor ID:s with the respective enums instead. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-08-05ARM: 5639/1: arm: clkdev.c should include <linux/clk.h>Hartley Sweeten1-0/+1
<linux/clk.h> should be included to get the base API prototypes. This fixes the following sparse warnings: arch/arm/common/clkdev.c:65:12: warning: symbol 'clk_get_sys' was not declared. Should it be static? arch/arm/common/clkdev.c:79:12: warning: symbol 'clk_get' was not declared. Should it be static? arch/arm/common/clkdev.c:87:6: warning: symbol 'clk_put' was not declared. Should it be static? Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-02[ARM] 5583/1: VIC: acknowledge software interruptsAlessandro Rubini1-1/+10
The PrimeCell Vectored Interrupt Controller offers a way to trigger any interrupt through software. This is a useful tool for developing, but such software interrupt can only be acked by writing a bit in the "software clear" register, or the handler will loop forever. This splits ack from mask, and acks the soft irq in case it was the source. Signed-off-by: Alessandro Rubini <rubini@unipv.it> Acked-by: Andrea Gallo <andrea.gallo@stericsson.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-02[ARM] 5582/1: VIC: support ST-modified version with a split initAlessandro Rubini1-0/+88
The Nomadik SoC (not yet merged) has a modified PL090 VIC cell. This adds support for it by reading the PrimeCell ID at the end of the page and calling a separate init function. Signed-off-by: Alessandro Rubini <rubini@unipv.it> Acked-by: Andrea Gallo <andrea.gallo@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-06-19[ARM] 5556/1: Fix the irq_desc.cpu referencesCatalin Marinas1-1/+1
The cpu member of struct irq_desc was recently renamed to node. The patch renames the ARM references to the old member. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-06-16[ARM] VIC: Fix resume sources usageBen Dooks1-2/+6
The resume_mask wasn't being checked in vic_set_wake() to see if the IRQ was a valid wakeup source. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-06-14Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds5-871/+240
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (417 commits) MAINTAINERS: EB110ATX is not ebsa110 MAINTAINERS: update Eric Miao's email address and status fb: add support of LCD display controller on pxa168/910 (base layer) [ARM] 5552/1: ep93xx get_uart_rate(): use EP93XX_SYSCON_PWRCNT and EP93XX_SYSCON_PWRCN [ARM] pxa/sharpsl_pm: zaurus needs generic pxa suspend/resume routines [ARM] 5544/1: Trust PrimeCell resource sizes [ARM] pxa/sharpsl_pm: cleanup of gpio-related code. [ARM] pxa/sharpsl_pm: drop set_irq_type calls [ARM] pxa/sharpsl_pm: merge pxa-specific code into generic one [ARM] pxa/sharpsl_pm: merge the two sharpsl_pm.c since it's now pxa specific [ARM] sa1100: remove unused collie_pm.c [ARM] pxa: fix the conflicting non-static declarations of global_gpios[] [ARM] 5550/1: Add default configure file for w90p910 platform [ARM] 5549/1: Add clock api for w90p910 platform. [ARM] 5548/1: Add gpio api for w90p910 platform [ARM] 5551/1: Add multi-function pin api for w90p910 platform. [ARM] Make ARM_VIC_NR depend on ARM_VIC [ARM] 5546/1: ARM PL022 SSP/SPI driver v3 ARM: OMAP4: SMP: Update defconfig for OMAP4430 ARM: OMAP4: SMP: Enable SMP support for OMAP4430 ...
2009-06-14Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into develRussell King3-864/+0
2009-06-11[ARM] pxa/sharpsl_pm: merge the two sharpsl_pm.c since it's now pxa specificDmitry Eremin-Solenikov3-864/+0
collie_pm was the only non-PXA user of sharpsl_pm. Now as it's gone we can merge code into one single file to allow further cleanup. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-06-10[ARM] Make ARM_VIC_NR depend on ARM_VICRussell King1-0/+1
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-06-10Merge branch for-rmk-devel of git://aeryn.fluff.org.uk/bjdooks/linux into develRussell King2-7/+221
2009-06-04[ARM] 5536/1: Move clk_add_alias() to arch/arm/common/clkdev.cTony Lindgren1-0/+18
This can be used for other arm platforms too as discussed on the linux-arm-kernel list. Also check the return value with IS_ERR and return PTR_ERR as suggested by Russell King. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-06-01Merge branch 'linus' into irq/numaIngo Molnar1-2/+2
Conflicts: arch/mips/sibyte/bcm1480/irq.c arch/mips/sibyte/sb1250/irq.c Merge reason: we gathered a few conflicts plus update to latest upstream fixes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-05-17[ARM] smp: fix cpumask usage in ARM SMP codeRussell King1-2/+2
The ARM SMP code wasn't properly updated for the cpumask changes, which results in smp_timer_broadcast() broadcasting ticks to non-online CPUs. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-05-07[ARM] VIC: Add power management deviceBen Dooks2-7/+221
Add power management support to the VIC by registering each VIC as a system device to get suspend/resume events going. Since the VIC registeration is done early, we need to record the VICs in a static array which is used to add the system devices later once the initcalls are run. This means there is now a configuration value for the number of VICs in the system. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-28irq: change ->set_affinity() to return statusYinghai Lu1-1/+3
according to Ingo, change set_affinity() in irq_chip should return int, because that way we can handle failure cases in a much cleaner way, in the genirq layer. v2: fix two typos [ Impact: extend API ] Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: linux-arch@vger.kernel.org LKML-Reference: <49F654E9.4070809@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-16[ARM] 5455/1: Fix IRQ noise from VIC codeLinus Walleij1-5/+4
The VIC code will attempt to perform som default set_irq_chip() and set_irq_chip_data() on all IRQs supported by the VIC, while the new IRQ handling code strictly checks for the global NR_IRQS to be respected also for these IRQs. This patch will respect the interrupt mask passed to the VIC driver and will prevent it from attempting to call these functions on any unused interrupts. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-27clkdev: add possibility to get a clock based on the device nameSascha Hauer1-2/+9
This adds clk_get_sys to get a clock without the associated struct device. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-25[ARM] 5431/1: scoop: completely drop old-style SCOOP GPIO accessorsDmitry Baryshkov1-31/+0
Now, as all places that use Scoop GPIO have been converted to use GPIO API, drop old-style accessors completely. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-03-24Merge branch 'highmem' into develRussell King1-0/+7
2009-03-15[ARM] make page_to_dma() highmem awareNicolas Pitre1-0/+7
If a machine class has a custom __virt_to_bus() implementation then it must provide a __arch_page_to_dma() implementation as well which is _not_ based on page_address() to support highmem. This patch fixes existing __arch_page_to_dma() and provide a default implementation otherwise. The default implementation for highmem is based on __pfn_to_bus() which is defined only when no custom __virt_to_bus() is provided by the machine class. That leaves only ebsa110 and footbridge which cannot support highmem until they provide their own __arch_page_to_dma() implementation. But highmem support on those legacy platforms with limited memory is certainly not a priority. Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-03-09[ARM] pxa: separate definitions from pxa-regs.h and remove it finallyEric Miao1-1/+1
The remaining registers are separated into: - <mach/regs-ost.h> - <mach/regs-rtc.h> - <mach/regs-intc.h> and then we can remove pxa-regs.h completely. Instead of #include this file, let's: 1. include the specific <mach/regs-*.h> with care (if that's absolutely necessary) 2. define the registers in the driver, make cleanly defined API to expose the register access to external with sufficient reason Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-01-24[ARM] clkdev: fix clock matchingRussell King1-6/+19
The old matching algorithm was too fuzzy, causing false positives. For example, when asked for device D connection C1 and we only find device D connection C2, we return that as a valid match despite the connection names being different. Change the algorithm such that: An entry with a NULL ID is assumed to be a wildcard. If an entry has a device ID, it must match If an entry has a connection ID, it must match However, we maintain the order of precidence while still only doing a single pass over all entries: dev+con > dev only > con only. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-02Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tipLinus Torvalds1-2/+2
* 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (66 commits) x86: export vector_used_by_percpu_irq x86: use logical apicid in x2apic_cluster's x2apic_cpu_mask_to_apicid_and() sched: nominate preferred wakeup cpu, fix x86: fix lguest used_vectors breakage, -v2 x86: fix warning in arch/x86/kernel/io_apic.c sched: fix warning in kernel/sched.c sched: move test_sd_parent() to an SMP section of sched.h sched: add SD_BALANCE_NEWIDLE at MC and CPU level for sched_mc>0 sched: activate active load balancing in new idle cpus sched: bias task wakeups to preferred semi-idle packages sched: nominate preferred wakeup cpu sched: favour lower logical cpu number for sched_mc balance sched: framework for sched_mc/smt_power_savings=N sched: convert BALANCE_FOR_xx_POWER to inline functions x86: use possible_cpus=NUM to extend the possible cpus allowed x86: fix cpu_mask_to_apicid_and to include cpu_online_mask x86: update io_apic.c to the new cpumask code x86: Introduce topology_core_cpumask()/topology_thread_cpumask() x86: xen: use smp_call_function_many() x86: use work_on_cpu in x86/kernel/cpu/mcheck/mce_amd_64.c ... Fixed up trivial conflict in kernel/time/tick-sched.c manually
2008-12-18Merge branch 'next-merged' of git://aeryn.fluff.org.uk/bjdooks/linux into develRussell King1-4/+4
2008-12-17Merge branch 'mxc-pu-imxfb' of git://pasiphae.extern.pengutronix.de/git/imx/linux-2.6 into develRussell King1-1/+1
2008-12-17Merge branch 'linus' into cpus4096Ingo Molnar1-1/+1
2008-12-15[ARM] VIC: Update asm/hardware/vic.h with PL192 informationBen Dooks1-4/+4
The original arch/arm/include/asm/hardware/vic.h was written for the PL190 ARM VIC implementation, and as such does not have any information about the PL192 version. Add details about the PL192 and PL190 specific registers and any changes between the two units. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-12-14[ARM] arch/arm/common/sa1111.c: Correct error handling codeJulia Lawall1-1/+1
If it is reasonable to apply PTR_ERR to the result of calling clk_get, then that result should first be tested with IS_ERR, not with !. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ expression E,E1; @@ if ( - E == NULL + IS_ERR(E) ) { <+... when != E = E1 PTR_ERR(E) ...+> } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-13cpumask: make irq_set_affinity() take a const struct cpumaskRusty Russell1-2/+2
Impact: change existing irq_chip API Not much point with gentle transition here: the struct irq_chip's setaffinity method signature needs to change. Fortunately, not widely used code, but hits a few architectures. Note: In irq_select_affinity() I save a temporary in by mangling irq_desc[irq].affinity directly. Ingo, does this break anything? (Folded in fix from KOSAKI Motohiro) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Reviewed-by: Grant Grundler <grundler@parisc-linux.org> Acked-by: Ingo Molnar <mingo@redhat.com> Cc: ralf@linux-mips.org Cc: grundler@parisc-linux.org Cc: jeremy@xensource.com Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
2008-12-02Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into develRussell King1-0/+1
Conflicts: arch/arm/mach-pxa/pxa25x.c
2008-12-02[ARM] locomo: export locomo_frontlight_set()Eric Miao1-0/+1
This symbol is required by locomo backlight driver, exporting this allows the driver to be built as a module. Signed-off-by: Eric Miao <eric.miao@marvell.com>
2008-11-27[ARM] clkdev: add generic clkdev infrastructureRussell King3-0/+132
Add some generic infrastructure to assist looking up struct clks for the ARM architecture. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-30[ARM] sharpsl_pm: fix compilation w/o CONFIG_PMDmitry Baryshkov1-5/+14
Fix compilation of sharpsl_pm when CONFIG_PM in unselected. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Eric Miao <eric.miao@marvell.com>
2008-10-21[ARM] 5315/1: Fix section mismatch warning (sa1111)Kristoffer Ericson1-1/+1
This patch fixes the section mismatch warning from sa1111.o at buildtime. CC arch/arm/common/sa1111.o LD arch/arm/common/built-in.o LD vmlinux.o MODPOST vmlinux.o WARNING: vmlinux.o(.text+0x87f4): Section mismatch in reference from the function sa1111_probe() to the function .devinit.text:sa1110_mb_enable() The function sa1111_probe() references the function __devinit sa1110_mb_enable(). This is often because sa1111_probe lacks a __devinit annotation or the annotation of sa1110_mb_enable is wrong. Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-17[ARM] dmabounce requires ZONE_DMARussell King1-1/+1
Rather than having everything that needs DMABOUNCE also select ZONE_DMA, arrange for DMABOUNCE to select it instead. This is far more sensible. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-17[ARM] pxa: fix 3bca103a1e658d23737d20e1989139d9ca8973bfRussell King1-0/+2
arch/arm/common/sa1111.c:593: error: implicit declaration of function 'dmabounce_register_dev' Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-09Merge branch 'pxa-all' into develRussell King3-29/+13
Conflicts: arch/arm/mach-pxa/Kconfig arch/arm/mach-pxa/corgi.c arch/arm/mach-pxa/include/mach/hardware.h arch/arm/mach-pxa/spitz.c
2008-10-09[ARM] 5295/1: make ZONE_DMA optionalNicolas Pitre1-1/+2
Most ARM machines don't need a special "DMA" memory zone, and when configured out, the kernel becomes a bit smaller: | text data bss dec hex filename |3826182 102384 111700 4040266 3da64a vmlinux |3823593 101616 111700 4036909 3d992d vmlinux.nodmazone This is because the system now has only one zone total which effect is to optimize away many conditionals in page allocation paths. So let's configure this zone only on machines that need split zones. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-09[ARM] 5298/1: Drop desc_handle_irq()Dmitry Baryshkov2-29/+11
desc_handle_irq() was declared as obsolete since long ago. Replace it with generic_handle_irq() Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-03[ARM] 4733/1: export sharpsl_paramDmitry Baryshkov1-0/+2
EXPORT sharpsl_param which is necessary to support modular build of some depending drivers. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-29[ARM] dma: add validation of DMA paramsRussell King1-4/+7
Validate the direction argument like x86 does. In addition, validate the dma_unmap_* parameters against those passed to dma_map_* when using the DMA bounce code. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-29[ARM] dma: coding style cleanupsRussell King1-32/+16
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-29[ARM] dma: fix dmabounce dma_sync_xxx() implementationsRussell King1-86/+58
The dmabounce dma_sync_xxx() implementation have been broken for quite some time; they all copy data between the DMA buffer and the CPU visible buffer no irrespective of the change of ownership. (IOW, a DMA_FROM_DEVICE mapping copies data from the DMA buffer to the CPU buffer during a call to dma_sync_single_for_device().) Fix it by getting rid of sync_single(), moving the contents into the recently created dmabounce_sync_for_xxx() functions and adjusting appropriately. This also makes it possible to properly support the DMA range sync functions. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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