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2012-07-05Merge tag 'omap-devel-e-for-3.5' of ↵Tony Lindgren
git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into devel-am33xx-data OMAP AM33xx clock data Conflicts: arch/arm/mach-omap2/Makefile
2012-07-05ARM: OMAP2+: Remove unnecessary ifdef around __omap2_set_globalsVaibhav Hiremath
The function __omap2_set_globals() can be common across all platforms/architectures, even in case of omap4, internally it calls same set of functions as in __omap2_set_globals() function (except for sdrc). This patch adds new config flag SOC_HAS_OMAP2_SDRC to handle sdrc, so that we can reuse same function across omap2/3/4... Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-07-05ARM: OMAP2+: am33xx: Change cpu_is_am33xx to soc_is_am33xxVaibhav Hiremath
As per recent discussion on the linux-omap list, we are moving in the direction where, we will have only architecture, ARCH_OMAP2PLUS and all devices/platforms will be treated as a SoC underneath. So the first step in this direction is to adopt this change for all new devices getting in, converting cpu_is_am33xx/335x() ==> soc_is_am33xx/335x() Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-07-05ARM: OMAP2+: am33xx: Make am33xx as a separate classVaibhav Hiremath
Initially, we decided to make am33xx family of device to fall under omap3 class (cpu_is_omap34xx() = true), since it carries Cortex-A8 core. But while adding complete baseport support (like, clock, power and hwmod) support, it is observed that, we are creating more and more problems by treating am33xx device as omap3 family, as nothing matches between them (except cortex-A8 mpu). So, after long discussion we have came to the conclusion that, we should not consider am33xx device as omap3 family, instead create separate class (SOC_AM33XX) under OMAP2PLUS. This means, for am33xx device, cpu_is_omap34xx() will return false, and only cpu_is_am33xx() will be true. Please refer to the link below, for mailing-list discussion on this - http://www.spinics.net/lists/linux-omap/msg69439.html Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Paul Walmsley <paul@pwsan.com> [tony@atomide.com: fixed typo, updated for soc_is changes] Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-07-05ARM: OMAP2+: Move omap3 dpll ops to dpll3xxx.cVaibhav Hiremath
In order to remove unnecessary idefs, move noncore and core dpll ops to dpll3xxx.c file (where it should have been already). The clkops (clkops_omap3_core_dpll_ops & clkops_omap3_noncore_dpll_ops) is used in clock data files, and dependency is already handled by Makefile rule. Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Cc: Kevin Hilman <khilman@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-07-05ARM: OMAP2+: All OMAP2PLUS uses omap-device.o target so add one entryVaibhav Hiremath
All OMAP2PLUS based devices, builds omap-device.o target; so just add one entry so that there is no need to patch this file for any future OMAP2+ devices. Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-07-05ARM: OMAP: dmtimer: use devm_ API and do some cleanup in probe()Tarun Kanti DebBarma
Replace the regular kzalloc and ioremap with the devm_ equivalent to simplify error handling. We don't need kree() any more in omap_dm_timer_remove(). Also added *dev* pointer to reference pdev->dev which makes the usage shorter in code. Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Rajendra Nayak <rnayak@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-07-05Merge tag 'omap-devel-f-for-3.6' of ↵Tony Lindgren
git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into cleanup-part2 Miscellaneous OMAP clock, hwmod, clockdomain, and powerdomain patches for 3.6. Mostly small infrastructure improvements, and preparation for OMAP5 and AM33xx code. Conflicts: arch/arm/mach-omap2/omap_hwmod.c arch/arm/plat-omap/include/plat/omap_hwmod.h
2012-07-04Merge branches 'hwmod_am335x_support_3.6', 'clkdm_pwrdm_devel_a_3.6' and ↵Paul Walmsley
'misc_devel_3.6' into omap_devel_f_3.6
2012-07-04ARM: OMAP2+: hwmod code: add support to set dmadisable in hwmod frameworkKishon Vijay Abraham I
The DMADISABLE bit is a semi-automatic bit present in sysconfig register of some modules. When the DMA must perform read/write accesses, the DMADISABLE bit is cleared by the hardware. But when the DMA must stop for power management, software must set the DMADISABLE bit back to 1. In cases where the ROMCODE/BOOTLOADER uses dma, the hardware clears the DMADISABLE bit (but the romcode/bootloader might not set it back to 1). In order for the kernel to start in a clean state, it is necessary for the kernel to set DMADISABLE bit back to 1 (irrespective of whether it's been set to 1 in romcode or bootloader). During _reset of the (hwmod)device, the DMADISABLE bit is set so that it does not prevent idling of the system. (NOTE: having DMADISABLE to 0, prevents the system to idle) DMADISABLE bit is present in usbotgss module of omap5. Cc: Benoit Cousson <b-cousson@ti.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> [paul@pwsan.com: updated to apply; fixed checkpatch warnings] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-07-04ARM: OMAP2+: PRM/CM: Move the stubbed prm and cm functions to prcm.c file ↵R Sricharan
and make them __weak Some prm and cm registers read/write and status functions are built only for some custom OMAP2+ builds and are stubbed in header files for other builds under ifdef statements. But this results in adding new CONFIG_ARCH_OMAPXXX checks when SOCs are added in the future. So move them to a common place for OMAP2+ and make them 'weak' implementations. This way no new ifdefs would be required in the future and also cleans up the existing code. Signed-off-by: R Sricharan <r.sricharan@ti.com> [paul@pwsan.com: unsplit quoted strings; moved PRM functions to mach-omap2/prm_common.c; resolved sparse warnings] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-07-04ARM: OMAP2+: hwmod: add omap_hwmod_get_main_clk() APITarun Kanti DebBarma
Add an API to get main clock name associated with a given @oh. This will avoid the need to construct fclk names during early initialization in order to get fclk handle using clk_get(). Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Rajendra Nayak <rnayak@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Benoit Cousson <b-cousson@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-07-04ARM: OMAP3+: dpll: optimize noncore dpll locking logicVikram Pandita
If the dpll is already locked, code can be optimized to return much earlier than doing redundent set of lock mode and wait on idlest. Cc: Tony Lindgren <tony@atomide.com> Cc: Jon Hunter <jon-hunter@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Mike Turquette <mturquette@ti.com> Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-07-04ARM: OMAP3: control: add definition for CONTROL_CAMERA_PHY_CTRLSakari Ailus
The register is used to configure the behaviour of the CSI-2 and CCP-2 receivers. This register is available only in OMAP3630. The original patch was submitted by Vimarsh Zutshi. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Cc: Vimarsh Zutshi <vimarsh.zutshi@gmail.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-07-04ARM: OMAP2+: powerdomain code: Fix Wake-up power domain power statusJon Hunter
The wake-up power domain is an alway-on power domain and so this power domain does not have a power state status (PM_PWSTST_xxx) register that indicates the current state. However, during the registering of the wake-up power domain the state of the domain is queried by calling pwrdm_read_pwrst(). This actually tries to read a register that does not exist and returns a value of 0 that indicates that the current state is OFF. The OFF state count of the wake-up power domain is then set to 1 and the current state to OFF. Both of which are incorrect. To fix this, if a power domain only supports the ON state, do not attempt to read the power state status register and simply return ON as the current power state. This is based upon Tony's current linux-omap master branch. Testing: - Boot tested on OMAP4460 panda. - Boot tested on OMAP3430 beagle and validated CORE RET still working (using Paul's 32k timer patch [1]). [1] http://marc.info/?l=linux-omap&m=134000053229888&w=2 Signed-off-by: Jon Hunter <jon-hunter@ti.com> Acked-by: Kevin Hilman <khilman@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> [paul@pwsan.com: edited commit message slightly] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-07-04ARM: OMAP4: clockdomain/CM code: Update supported transition modesJon Hunter
For OMAP3+ devices, the clock domains (CLKDMs) support one or more of the following transition modes ... NO_SLEEP (0x0) - A clock domain sleep transition is never initiated, irrespective of the hardware conditions. SW_SLEEP (0x1) - A software-forced sleep transition. The transition is initiated when the associated hardware conditions are satisfied SW_WKUP (0x2) - A software-forced clock domain wake-up transition is initiated, irrespective of the hardware conditions. HW_AUTO (0x3) - Hardware-controlled automatic sleep and wake-up transition is initiated by the PRCM module when the associated hardware conditions are satisfied. For OMAP4 devices, SW_SLEEP is equivalent to HW_AUTO and NO_SLEEP is equivalent to SW_WKUP. The only difference between HW_AUTO and SW_SLEEP for OMAP4 devices is that the PRM_IRQSTATUS_MPU.TRANSITION_ST interrupt status is set in case of SW_SLEEP transition, and not set in case of HW_AUTO transition. For OMAP4 devices, all CLKDMs support HW_AUTO and therefore we can place the CLKDMs in the HW_AUTO state instead of the SW_SLEEP mode. Hence, we do not need to use the SW_SLEEP mode. With regard to NO_SLEEP and SW_WKUP it is preferred to use SW_WKUP mode if the CLKDM supports it and so use this mode instead of NO_SLEEP where possible. For a software perspective the above 4 modes are represented by the following flags to indicate what modes are supported by each of the CLKDMs. CLKDM_CAN_DISABLE_AUTO --> NO_SLEEP CLKDM_CAN_ENABLE_AUTO --> HW_AUTO CLKDM_CAN_FORCE_SLEEP --> SW_SLEEP CLKDM_CAN_FORCE_WAKEUP --> SW_WKUP By eliminating the SW_SLEEP mode the the mapping of the flags for OMAP4 devices can becomes ... CLKDM_CAN_DISABLE_AUTO --> NO_SLEEP CLKDM_CAN_ENABLE_AUTO --> HW_AUTO CLKDM_CAN_FORCE_SLEEP --> HW_AUTO CLKDM_CAN_FORCE_WAKEUP --> SW_WKUP Cc: Ming Lei <ming.lei@canonical.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Kevin Hilman <khilman@ti.com> Reviewed-by: Benoit Cousson <b-cousson@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-07-04ARM: OMAP3/4: omap_hwmod: Add rstst_offs field to struct omap_hwmod_omap4_prcmVaibhav Hiremath
In case of AM33XX device, XXX_RSTST register offset is not consistent across PRM modules/instances, PRM_XXX RSTST ========================= PRM_PER_MOD: 0x04 PRM_WKUP_MOD: 0x0C PRM_MPU_MOD: NA PRM_DEVICE_MOD: 0x08 This means, we need to pass on XXX_RSTST register offset information through omap_hwmod data, similar to XXX_RSTCTRL. Currently, this field is only applicable and used for AM33XX devices. Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-07-04ARM: OMAP2+: hwmod: Add new sysc_type3 into omap_hwmod required for am33xxVaibhav Hiremath
In case of AM33xx family of devices (like cpsw) have different sysc bit field offsets defined, sysc_type3: | 3 2 | 1 0 | | STDBYMODE | IDLEMODE | So introduce new sysc_type3 in omap_hwmod common data. Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Vaibhav Bedia <vaibhav.bedia@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-07-04Merge tags 'omap-cleanup-for-v3.6', 'omap-devel-dmtimer-for-v3.6' and ↵Tony Lindgren
'omap-devel-am33xx-for-v3.6' into devel-am33xx-part2
2012-06-30Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "Another week, another batch of fixes. All are small, contained, targeted fixes for explicit problems -- mostly build and boot failures across i.MX, OMAP, Renesas/Shmobile and Samsung." * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: imx6q: fix suspend regression caused by common clk migration ARM: OMAP4470: Fix OMAP4470 boot failure ARM: EXYNOS: Fix EXYNOS_DEV_DMA Kconfig entry ARM: OMAP2+: nand: fix build error when CONFIG_MTD_ONENAND_OMAP2=n ARM: shmobile: r8a7779: Route all interrupts to ARM ARM: shmobile: kzm9d: use late init machine hook ARM: shmobile: kzm9g: use late init machine hook ARM: mach-shmobile: armadillo800eva: Use late init machine hook ARM: SAMSUNG: Fix for S3C2412 EBI memory mapping ARM: mach-shmobile: add missing GPIO IRQ configuration on mackerel ARM: mach-shmobile: Fix build when SMP is enabled and EMEV2 is not enabled ARM: shmobile: sh7372: bugfix: chclr_offset base ARM: shmobile: sh73a0: bugfix: SY-DMAC number ARM: SAMSUNG: Should check for IS_ERR(clk) instead of NULL
2012-06-30Merge branch 'v3.5-samsung-fixes-1' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes * 'v3.5-samsung-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: Fix EXYNOS_DEV_DMA Kconfig entry ARM: SAMSUNG: Fix for S3C2412 EBI memory mapping ARM: SAMSUNG: Should check for IS_ERR(clk) instead of NULL
2012-06-30ARM: imx6q: fix suspend regression caused by common clk migrationShawn Guo
When moving to common clk framework, the imx6q clks rom and mmdc_ch1_axi get different on/off states than old clk driver, which breaks suspend function. There might be a better way to manage these clocks, but let's takes the old clk driver approach to fix the regression first. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2012-06-30Merge tag 'omap-fixes-for-v3.5-rc4' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes From Tony Lindgren: "Here's one more regression fix that I missed earlier, and a trivial fix to get omap4470 booting." * tag 'omap-fixes-for-v3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP4470: Fix OMAP4470 boot failure ARM: OMAP2+: nand: fix build error when CONFIG_MTD_ONENAND_OMAP2=n
2012-06-30Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull ACPI & Power Management patches from Len Brown. * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: acpi_pad: fix power_saving thread deadlock ACPI video: Still use ACPI backlight control if _DOS doesn't exist ACPI, APEI, Avoid too much error reporting in runtime ACPI: Add a quirk for "AMILO PRO V2030" to ignore the timer overriding ACPI: Remove one board specific WARN when ignoring timer overriding ACPI: Make acpi_skip_timer_override cover all source_irq==0 cases ACPI, x86: fix Dell M6600 ACPI reboot regression via DMI ACPI sysfs.c strlen fix
2012-06-30Merge branches 'acpi_pad-bugzilla-42981', 'apei-bugzilla-43282', ↵Len Brown
'video-bugzilla-43168', 'bugzilla-40002' and 'bugfix-misc' into release bug fixes
2012-06-29ARM: OMAP3+: clock33xx: Add AM33XX clock tree dataVaibhav Hiremath
AM33XX clock implementation is different than any existing OMAP family of devices. Although DPLL module is similar to OMAP4 device, but the usage is very much different than OMAP4. AM33XX has different peripheral set and each module gets integrated to the clock framework differently than OMAP family of devices. This patch adds full Clock tree data for AM33XX family of devices and also integrates it into existing OMAP framework. Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Afzal Mohammed <afzal@ti.com> Signed-off-by: Vaibhav Bedia <vaibhav.bedia@ti.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Rajendra Nayak <rnayak@ti.com> CC: Tony Lindgren <tony@atomide.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com> [paul@pwsan.com: updated to apply; changed 'soc_is_am33xx' to 'cpu_is_am33xx' to match usage in Tony's current am33xx branch] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-06-29Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc fixes from Benjamin Herrenschmidt: "Here are a few powerpc fixes. Arguably some of this should have come to you earlier but I'm only just catching up after my medical leave. Mostly these fixes regressions, a couple are long standing bugs." * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/pseries: Fix software invalidate TCE powerpc: check_and_cede_processor() never cedes powerpc/ftrace: Do not trace restore_interrupts() powerpc: Fix Section mismatch warnings in prom_init.c ppc64: fix missing to check all bits of _TIF_USER_WORK_MASK in preempt powerpc: Fix uninitialised error in numa.c powerpc: Fix BPF_JIT code to link with multiple TOCs
2012-06-29Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar. * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, cpufeature: Remove stray %s, add -w to mkcapflags.pl x86, cpufeature: Catch duplicate CPU feature strings x86, cpufeature: Rename X86_FEATURE_DTS to X86_FEATURE_DTHERM x86: Fix kernel-doc warnings x86, compat: Use test_thread_flag(TIF_IA32) in compat signal delivery
2012-06-29powerpc/pseries: Fix software invalidate TCEMichael Neuling
The following added support for powernv but broke pseries/BML: 1f1616e powerpc/powernv: Add TCE SW invalidation support TCE_PCI_SW_INVAL was split into FREE and CREATE flags but the tests in the pseries code were not updated to reflect this. Signed-off-by: Michael Neuling <mikey@neuling.org> cc: stable@kernel.org [v3.3+] Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-06-29powerpc: check_and_cede_processor() never cedesAnton Blanchard
Commit f948501b36c6 ("Make hard_irq_disable() actually hard-disable interrupts") caused check_and_cede_processor to stop working. ->irq_happened will never be zero right after a hard_irq_disable so the compiler removes the call to cede_processor completely. The bug was introduced back in the lazy interrupt handling rework of 3.4 but was hidden until recently because hard_irq_disable did nothing. This issue will eventually appear in 3.4 stable since the hard_irq_disable fix is marked stable, so mark this one for stable too. Signed-off-by: Anton Blanchard <anton@samba.org> Cc: stable@vger.kernel.org Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-06-29powerpc/ftrace: Do not trace restore_interrupts()Steven Rostedt
As I was adding code that affects all archs, I started testing function tracer against PPC64 and found that it currently locks up with 3.4 kernel. I figured it was due to tracing a function that shouldn't be, so I went through the following process to bisect to find the culprit: cat /debug/tracing/available_filter_functions > t num=`wc -l t` sed -ne "1,${num}p" t > t1 let num=num+1 sed -ne "${num},$p" t > t2 cat t1 > /debug/tracing/set_ftrace_filter echo function /debug/tracing/current_tracer <failed? bisect t1, if not bisect t2> It finally came down to this function: restore_interrupts() I'm not sure why this locks up the system. It just seems to prevent scheduling from occurring. Interrupts seem to still work, as I can ping the box. But all user processes freeze. When restore_interrupts() is not traced, function tracing works fine. Cc: stable@kernel.org Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-06-29powerpc: Fix Section mismatch warnings in prom_init.cLi Zhong
This patches tries to fix a couple of Section mismatch warnings like following one: WARNING: arch/powerpc/kernel/built-in.o(.text+0x2923c): Section mismatch in reference from the function .prom_query_opal() to the function .init.text:.call_prom() The function .prom_query_opal() references the function __init .call_prom(). This is often because .prom_query_opal lacks a __init annotation or the annotation of .call_prom is wrong. Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-06-29ppc64: fix missing to check all bits of _TIF_USER_WORK_MASK in preemptTiejun Chen
In entry_64.S version of ret_from_except_lite, you'll notice that in the !preempt case, after we've checked MSR_PR we test for any TIF flag in _TIF_USER_WORK_MASK to decide whether to go to do_work or not. However, in the preempt case, we do a convoluted trick to test SIGPENDING only if PR was set and always test NEED_RESCHED ... but we forget to test any other bit of _TIF_USER_WORK_MASK !!! So that means that with preempt, we completely fail to test for things like single step, syscall tracing, etc... This should be fixed as the following path: - Test PR. If not set, go to resume_kernel, else continue. - If go resume_kernel, to do that original do_work. - If else, then always test for _TIF_USER_WORK_MASK to decide to do that original user_work, else restore directly. Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-06-29powerpc: Fix uninitialised error in numa.cMichael Neuling
chroma_defconfig currently gives me this with gcc 4.6: arch/powerpc/mm/numa.c:638:13: error: 'dm' may be used uninitialized in this function [-Werror=uninitialized] It's a bogus warning/error since of_get_drconf_memory() only writes it anyway. Signed-off-by: Michael Neuling <mikey@neuling.org> cc: <stable@kernel.org> [v3.3+] Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-06-29powerpc: Fix BPF_JIT code to link with multiple TOCsMichael Ellerman
If the kernel is big enough (eg. allyesconfig), the linker may need to switch TOCs when calling from the BPF JIT code out to the external helpers (skb_copy_bits() & bpf_internal_load_pointer_neg_helper()). In order to do that we need to leave space after the bl for the linker to insert a reload of our TOC pointer. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Matt Evans <matt@ozlabs.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-06-28Merge branch 'cleanup-hwmod' into cleanupTony Lindgren
Conflicts: arch/arm/mach-omap2/dsp.c
2012-06-28Merge branches 'cleanup-udc' and 'cleanup-dma' into cleanupTony Lindgren
2012-06-28Merge branches 'sh/urgent' and 'sh/trivial' into sh-fixes-for-linusPaul Mundt
2012-06-28sh: Convert sh_clk_mstp32_register to sh_clk_mstp_registerNobuhiro Iwamatsu
sh_clk_mstp32_register is deprecated. This convert to sh_clk_mstp_register. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-28sh: kfr2r09: fix compile breakageGuennadi Liakhovetski
Fix compile breakage caused by commit aa82f9fcd0062782dcbe29a2c820ba7c04dbe572 Author: Paul Mundt <lethal@linux-sh.org> sh: kfr2r09 evt2irq migration. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu Pull a m68knommu fix from Greg Ungerer: "It contains a single fix for breakage using the Freescale FEC eth driver on ColdFire CPUs." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68knommu: define a local devm_clk_get() function
2012-06-27ARM: OMAP4470: Fix OMAP4470 boot failureJon Hunter
OMAP4470 currently fails to boot, printing various messages such as ... omap_hwmod: mpu: cannot clk_get main_clk dpll_mpu_m2_ck omap_hwmod: mpu: cannot _init_clocks ------------[ cut here ]------------ WARNING: at arch/arm/mach-omap2/omap_hwmod.c:2062 _init+0x2a0/0x2e4() omap_hwmod: mpu: couldn't init clocks Modules linked in: [<c001c7fc>] (unwind_backtrace+0x0/0xf4) from [<c0043c64>] (warn_slowpath_common+0x4c/0x64) [<c0043c64>] (warn_slowpath_common+0x4c/0x64) from [<c0043d10>] (warn_slowpath_fmt+0x30/0x40) [<c0043d10>] (warn_slowpath_fmt+0x30/0x40) from [<c0674208>] (_init+0x2a0/0x2e4) [<c0674208>] (_init+0x2a0/0x2e4) from [<c067428c>] (omap_hwmod_setup_one+0x40/0x60) [<c067428c>] (omap_hwmod_setup_one+0x40/0x60) from [<c0674280>] (omap_hwmod_setup_one+0x34/0x60) [<c0674280>] (omap_hwmod_setup_one+0x34/0x60) from [<c06726f4>] (omap_dm_timer_init_one+0x30/0x250) [<c06726f4>] (omap_dm_timer_init_one+0x30/0x250) from [<c0672930>] (omap2_gp_clockevent_init+0x1c/0x108) [<c0672930>] (omap2_gp_clockevent_init+0x1c/0x108) from [<c0672c60>] (omap4_timer_init+0x10/0x5c) [<c0672c60>] (omap4_timer_init+0x10/0x5c) from [<c066c418>] (time_init+0x20/0x30) [<c066c418>] (time_init+0x20/0x30) from [<c0668814>] (start_kernel+0x1b0/0x304) [<c0668814>] (start_kernel+0x1b0/0x304) from [<80008044>] (0x80008044) ---[ end trace 1b75b31a2719ed1c ]--- The problem is that currently none of the clocks are being registered for OMAP4470 devices and so on boot-up no clocks can be found and the kernel panics. This fix allows the kernel to boot without failure using a simple RAMDISK file system on OMAP4470 blaze board. Per feedback from Paul and Benoit the 4470 clock data is incomplete for new modules such as the 2D graphics block that has been added to the 4470. Therefore add a warning to indicate that the clock data is incomplete. Cc: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com> Signed-off-by: Jon Hunter <jon-hunter@ti.com> [tony@atomide.com: updated comments] Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-06-26ARM: OMAP3+: clock: Move common clksel_rate & clock data to common filePaul Walmsley
OMAP3, OMAP4 and AM33xx share some common data like, clksel_rate oscillator clock input (Virtual clock nodes), required for clock tree; so move common data to common data file so that it can be reused. [hvaibhav@ti.com: Created separate commit from Paul's developement branch] Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-06-27ARM: EXYNOS: Fix EXYNOS_DEV_DMA Kconfig entrySachin Kamat
Commit 20ef9e08 ("ARM: EXYNOS: Support DMA for EXYNOS5250 SoC") renamed EXYNOS4_DEV_DMA to EXYNOS_DEV_DMA. But some machine entries still had EXYNOS4_DEV_DMA. Changed them to EXYNOS_DEV_DMA. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-06-26x86, cpufeature: Remove stray %s, add -w to mkcapflags.plH. Peter Anvin
There was a stray %s left from testing, remove it. Add -w to the #! line (which is parsed by Perl even if the Perl interpreter is invoked explicitly on the command line) to catch these kinds of errors in the future. Reported-by: Jean Delvare <khali@linux-fr.org> Link: http://lkml.kernel.org/r/20120626143246.0c9bf301@endymion.delvare Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-06-26ARM: OMAP2+: nand: fix build error when CONFIG_MTD_ONENAND_OMAP2=nKevin Hilman
commit 8259573b (ARM: OMAP2+: nand: Make board_onenand_init() visible to board code) broke the build for configs with OneNAND disabled. By removing the static in the header file, it created a duplicate definition in the .c and the .h files, resuling in a build error: /work/kernel/omap/dev/arch/arm/mach-omap2/board-flash.c:102:111: error: redefinition of 'board_onenand_init' /work/kernel/omap/dev/arch/arm/mach-omap2/board-flash.h:56:51: note: previous definition of 'board_onenand_init' was here make[2]: *** [arch/arm/mach-omap2/board-flash.o] Error 1 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [arch/arm/mach-omap2] Error 2 make: *** [sub-make] Error 2 Fix this by removing the duplicate dummy entry from the C file. Cc: Enric Balletbò i Serra <eballetbo@gmail.com> Cc: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-06-25Merge branch 'v4l_for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media fixes from Mauro Carvalho Chehab. Trivial conflict due to new USB HID ID's being added next to each other (Baanto vs Axentia). * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (44 commits) [media] smia: Fix compile failures [media] Fix VIDIOC_DQEVENT docbook entry [media] s5p-fimc: Fix control creation function [media] s5p-mfc: Fix checkpatch error in s5p_mfc_shm.h file [media] s5p-mfc: Fix setting controls [media] v4l/s5p-mfc: added image size align in VIDIOC_TRY_FMT [media] v4l/s5p-mfc: corrected encoder v4l control definitions [media] v4l: mem2mem_testdev: Fix race conditions in driver [media] s5p-mfc: Bug fix of timestamp/timecode copy mechanism [media] cxd2820r: Fix an incorrect modulation type bitmask [media] em28xx: Show a warning if the board does not support remote controls [media] em28xx: Add remote control support for Terratec's Cinergy HTC Stick HD [media] USB: Staging: media: lirc: initialize spinlocks before usage [media] Revert "[media] media: mx2_camera: Fix mbus format handling" [media] bw-qcam: driver and pixfmt documentation fixes [media] cx88: fix firmware load on big-endian systems [media] cx18: support big-endian systems [media] ivtv: fix support for big-endian systems [media] tuner-core: return the frequency range of the correct tuner [media] v4l2-dev.c: fix g_parm regression in determine_valid_ioctls() ...
2012-06-25x86, cpufeature: Catch duplicate CPU feature stringsH. Peter Anvin
We had a case of duplicate CPU feature strings, a user space ABI violation, for almost two years. Make it a build error so that doesn't happen again. Link: http://lkml.kernel.org/r/4FE34BCB.5050305@linux.intel.com Cc: Jan Beulich <JBeulich@suse.com> Cc: Jean Delvare <khali@linux-fr.org>
2012-06-25x86, cpufeature: Rename X86_FEATURE_DTS to X86_FEATURE_DTHERMH. Peter Anvin
It makes sense to label "Digital Thermal Sensor" as "DTS", but unfortunately the string "dts" was already used for "Debug Store", and /proc/cpuinfo is a user space ABI. Therefore, rename this to "dtherm". This conflict went into mainline via the hwmon tree without any x86 maintainer ack, and without any kind of hint in the subject. a4659053 x86/hwmon: fix initialization of coretemp Reported-by: Jean Delvare <khali@linux-fr.org> Link: http://lkml.kernel.org/r/4FE34BCB.5050305@linux.intel.com Cc: Jan Beulich <JBeulich@suse.com> Cc: <stable@vger.kernel.org> v2.6.36..v3.4 Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-06-25ARM: dma-mapping: fix buffer chunk allocation orderMarek Szyprowski
IOMMU-aware dma_alloc_attrs() implementation allocates buffers in power-of-two chunks to improve performance and take advantage of large page mappings provided by some IOMMU hardware. However current code, due to a subtle bug, allocated those chunks in the smallest-to-largest order, what completely killed all the advantages of using larger than page chunks. If a 4KiB chunk has been mapped as a first chunk, the consecutive chunks are not aligned correctly to the power-of-two which match their size and IOMMU drivers were not able to use internal mappings of size other than the 4KiB (largest common denominator of alignment and chunk size). This patch fixes this issue by changing to the correct largest-to-smallest chunk size allocation sequence. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>