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2015-12-18s390/traps: Remove unused variableChristian Borntraeger
location is assigned but never used. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-12-18s390: compile head.S always with -march=z900Heiko Carstens
head.S on s390 contains some sanity checks if the kernel will run on a machine or if the machine is too old, e.g. if the kernel contains instructions not available on the machine. If so, it will emit an error message to the console before it stops execution. Therefore head.S contains only instructions which are availanble with the earliest machine generation (z900). In order to make sure we don't accidently add instructions which are not available on z900, always compile with -march=z900. This makes sure compilation will fail if wrong instructions are used. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-12-18s390/facilities: add z13 als bitHeiko Carstens
If configured for z13 assume the kernel makes use of the instructions that are part of the load-and-zero-rightmost-byte facility and load/store-on-condition facility 2. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-12-18s390/facilities: optimize test_facility()Heiko Carstens
test_facility() can be optimized for bits which must be set anyway, due to the check in head.S. This removes a couple of superfluous runtime checks. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-12-18s390/facilities: remove unneeded facility bitsHeiko Carstens
The facility lists contain a lot of bits which are not necessary to run the kernel. Therefore remove them and keep only those bits which are required for the kernel. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-12-18s390/facilities: make use of generated facility listHeiko Carstens
Change head.S to make use of the generated facility list. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-12-18s390/facilities: add helper tool to generate facility listsHeiko Carstens
Modifying the architecture level set facility lists was always very error prone. Given the numbering of the facility bits within the Principles of Operation, where the most significant bit number is 0, it happened a lot of times that wrong bits were set or cleared. Therefore this patch adds a tool "gen_facilities" which generates include/generated/facilites.h. The definition of the bits to be set is contained within arch/s390/include/asm/facilities_src.h and can be easily extended to e.g. also generate such lists for the KVM module. The generated file looks like this: #define FACILITIES_ALS _AC(0xc1006450f0040000,UL) #define FACILITIES_ALS_DWORDS 1 The facility bits defined in this patch match 1:1 to the current masks that can be found in head.S. That is if the tool gets executed with -march=z990 then the generated masks will equal the masks in head.S for CONFIG_MARCH_Z990. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-12-18s390/facilities: always use lowcore's stfle field for storing facility bitsHeiko Carstens
head.s contains an stfle instruction which stores it result at the storage location that is assigned to the stfl instruction. This is currently no problem, since we only care about one double word. However if the number of double words in the ALS bitfield grows the current code is not very stable. E.g. before issuing the stfle command the memory to which it stores must be cleared, since the instruction may or may not clear memory contents where no bits are set. In order to simplify the code a bit always use the storage location that we reserved for the stfle result. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-12-18s390/facilities: use stfl mnemonic instead of insn magicHeiko Carstens
Now that 31 bit support is gone, the assembler always knows about the stfl instruction. Therefore lets use a readable mnemonic. Also remove the not needed extable entry for the inline assembly and fix the output constraint. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-12-18s390/dis: Fix handling of format specifiersMichael Holzheu
The print_insn() function returns strings like "lghi %r1,0". To escape the '%' character in sprintf() a second '%' is used. For example "lghi %%r1,0" is converted into "lghi %r1,0". After print_insn() the output string is passed to printk(). Because format specifiers like "%r" or "%f" are ignored by printk() this works by chance most of the time. But for instructions with control registers like "lctl %c6,%c6,780" this fails because printk() interprets "%c" as character format specifier. Fix this problem and escape the '%' characters twice. For example "lctl %%%%c6,%%%%c6,780" is then converted by sprintf() into "lctl %%c6,%%c6,780" and by printk() into "lctl %c6,%c6,780". Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Cc: stable@vger.kernel.org Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-12-18ARM: realview: select apropriate targetsLinus Walleij
Now that we have multiplatform support, let the RealView defconfigs select all the RealView boards so we boot out of the box like before. This updates both defconfigs. Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-12-18ARM: realview: clean up header filesArnd Bergmann
This contains multiple trivial cleanups to the realview headers: - removing the file names from the introductory comment - removing the uncompress.h header that is unused - removing the irqs.h header and NR_IRQS logic that is obsoleted by sparse IRQs Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-12-18ARM: realview: make all header files localArnd Bergmann
Nothing includes these files any more, so we can simply move them from arch/arm/mach-realview/include/mach/ to arch/arm/mach-realview. Signed-off-by: Arnd Bergmann <arnd@arndb.de> [Two fixes added to make everything compile] Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-12-18ARM: no longer make CPU targets visible separatelyArnd Bergmann
Now that realview and integrator always select the correct CPU type themselves based on the core tiles, there is no need to still have them user-visible in arch/arm/mm/Kconfig. The ARM925T symbol has been selected by the only user for many years, so that can be removed along with the realview and integrator specific ones. This also solves randconfig build problems on realview. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-12-18ARM: integrator: use explicit core module optionsArnd Bergmann
For consistency with the other platforms, this remove the CPU selection logic in mm/Kconfig that was only used by integrator, and adds specific options for each available core tile and core module, which in turn select the correct CPUs. This is consistent with the new way that we do it for realview and all other platforms. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-12-18ARM: realview: enable multiplatformArnd Bergmann
All obstacles are out of the way by now, so we can finally move realview to multiplatform. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> [Rebased Kconfig, fixed if $(X) to if X in Makefile] Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-12-18ARM: socfpga: Repair incorrectly applied MCV patchMarek Vasut
For whatever reason, this patch was not applied verbatim and had all tabs replaced with spaces. Replace them back by a quick sed. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Alan Tull <atull@altera.com> Cc: Dinh Nguyen <dinguyen@opensource.altera.com> Cc: Olof Johansson <olof@lixom.net> Cc: Steffen Trumtrar <s.trumtrar@pengutronix.de> Cc: Thor Thayer <tthayer@altera.com> Cc: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-12-18arm/arm64: KVM: Detect vGIC presence at runtimePavel Fedin
Before commit 662d9715840aef44dcb573b0f9fab9e8319c868a ("arm/arm64: KVM: Kill CONFIG_KVM_ARM_{VGIC,TIMER}") is was possible to compile the kernel without vGIC and vTimer support. Commit message says about possibility to detect vGIC support in runtime, but this has never been implemented. This patch introduces runtime check, restoring the lost functionality. It again allows to use KVM on hardware without vGIC. Interrupt controller has to be emulated in userspace in this case. -ENODEV return code from probe function means there's no GIC at all. -ENXIO happens when, for example, there is GIC node in the device tree, but it does not specify vGIC resources. Any other error code is still treated as full stop because it might mean some really serious problems. Signed-off-by: Pavel Fedin <p.fedin@samsung.com> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-12-18powerpc/opal-irqchip: Fix deadlock introduced by "Fix double endian conversion"Alistair Popple
Commit 25642e1459ac ("powerpc/opal-irqchip: Fix double endian conversion") fixed an endian bug by calling opal_handle_events() in opal_event_unmask(). However this introduced a deadlock if we find an event is active during unmasking and call opal_handle_events() again. The bad call sequence is: opal_interrupt() -> opal_handle_events() -> generic_handle_irq() -> handle_level_irq() -> raw_spin_lock(&desc->lock) handle_irq_event(desc) unmask_irq(desc) -> opal_event_unmask() -> opal_handle_events() -> generic_handle_irq() -> handle_level_irq() -> raw_spin_lock(&desc->lock) (BOOM) When generating multiple opal events in quick succession this would lead to the following stall warnings: EEH: Fenced PHB#0 detected, location: U78C9.001.WZS09XA-P1-C32 INFO: rcu_sched detected stalls on CPUs/tasks: 12-...: (1 GPs behind) idle=68f/140000000000001/0 softirq=860/861 fqs=2065 15-...: (1 GPs behind) idle=be5/140000000000001/0 softirq=1142/1143 fqs=2065 (detected by 13, t=2102 jiffies, g=1325, c=1324, q=602) NMI watchdog: BUG: soft lockup - CPU#18 stuck for 22s! [irqbalance:2696] INFO: rcu_sched detected stalls on CPUs/tasks: 12-...: (1 GPs behind) idle=68f/140000000000001/0 softirq=860/861 fqs=8371 15-...: (1 GPs behind) idle=be5/140000000000001/0 softirq=1142/1143 fqs=8371 (detected by 20, t=8407 jiffies, g=1325, c=1324, q=1290) This patch corrects the problem by queuing the work if an event is active during unmasking, which is similar to the pre-endian fix behaviour. Fixes: 25642e1459ac ("powerpc/opal-irqchip: Fix double endian conversion") Signed-off-by: Alistair Popple <alistair@popple.id.au> Reported-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-12-18arm64: KVM: Add support for 16-bit VMIDVladimir Murzin
The ARMv8.1 architecture extension allows to choose between 8-bit and 16-bit of VMID, so use this capability for KVM. Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-12-18arm: KVM: Make kvm_arm.h friendly to assembly codeVladimir Murzin
kvm_arm.h is included from both C code and assembly code; however some definitions in this header supplied with U/UL/ULL suffixes which might confuse assembly once they got evaluated. We have _AC macro for such cases, so just wrap problem places with it. Acked-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-12-18arm/arm64: KVM: Remove unreferenced S2_PGD_ORDERVladimir Murzin
Since commit a987370 ("arm64: KVM: Fix stage-2 PGD allocation to have per-page refcounting") there is no reference to S2_PGD_ORDER, so kill it for the good. Acked-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-12-18arm64: KVM: debug: Remove spurious inline attributesMarc Zyngier
The debug trapping code is pretty heavy on the "inline" attribute, but most functions are actually referenced in the sysreg tables, making the inlining imposible. Removing the useless inline qualifier seems the right thing to do, having verified that the output code is similar. Cc: Alex Bennée <alex.bennee@linaro.org> Acked-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-12-18ARM: KVM: Cleanup exception injectionMarc Zyngier
David Binderman reported that the exception injection code had a couple of unused variables lingering around. Upon examination, it looked like this code could do with an anticipated spring cleaning, which amounts to deduplicating the CPSR/SPSR update, and making it look a bit more like the architecture spec. The spurious variables are removed in the process. Reported-by: David Binderman <dcb314@hotmail.com> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-12-18arm64: mediatek: enable MTK_TIMERYingjoe Chen
Enable MTK_TIMER for MediaTek plaform, which will be used as tick broadcast device and schedule clock. Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-12-17ARM: OMAP2+: LogicPD Torpedo: Revert Duplicative EntriesAdam Ford
Revert 6f0f6c40b66 ("ARM: dts: Set VAUX1 and VAUX4 on Logic PD Torpedo") because it It was already done and it's just a duplicate. See: 2d11961f3e55 ("ARM: dts: Set VAUX1 and VAUX4 to 3.0V and 1.8V respectively") Signed-off-by: Adam Ford <aford173@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-18arm64: renesas: r8a7795: fix SATA clock assignmentUlrich Hecht
SATA clock is 815, not 915. Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-12-18arm64: dts: salvator-x: Enable SATA controllerKouei Abe
This enables SATA device in r8a7795-salvator-x.dts. Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-12-18arm64: dts: r8a7795: Add SATA controller nodeKouei Abe
This adds SATA device node to r8a7795.dtsi. Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com> [uli: adjusted for new MSTP clock scheme] Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-12-18arm64: renesas: r8a7795: add internal delay for i2c IPsWolfram Sang
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-12-18arm64: dts: r8a7795: Add pmu device nodesYoshifumi Hosoya
Enabling the performance monitor unit on r8a7795. Signed-off-by: Masaru Nagai <masaru.nagai.vx@renesas.com> Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com> Signed-off-by: Dirk Behme <dirk.behme@gmail.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-12-18arm64: dts: r8a7795: Add Cortex-A57 CPU coresGaku Inami
Add Cortex-A57 CPU cores to r8a7795 SoC for a total of 4 x Cortex-A57. Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com> Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> Sigend-off-by: Dirk Behme <dirk.behme@gmail.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-12-18arm64: dts: r8a7795: Add PSCI nodeGaku Inami
Add PSCI node for r8a7795 SoC, and cpu node enable-method property is set to "psci". Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com> Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> Signed-off-by: Dirk Behme <dirk.behme@gmail.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-12-18arm64: defconfig: add CS2000 supportKuninori Morimoto
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-12-17Merge branch 'fixes' into next/multiplatformArnd Bergmann
The 'fixes' branch contains d5d4fdd86f57 ("irqchip/versatile-fpga: Fix PCI IRQ mapping on Versatile PB") that is required for booting the versatile platform prior to the rework in this branch, but including both causes a build-time error. I'm doing an evil merge here to pull in the fixes branch so we have that commit included but at the same time revert the trivial change. This gives us a bisectable history. * fixes: (22 commits) fsl-ifc: add missing include on ARM64 ls2080a/dts: Add little endian property for GPIO IP block dt-bindings: define little-endian property for QorIQ GPIO ARM64: dts: ls2080a: fix eSDHC endianness ARM: dts: vf610: use reset values for L2 cache latencies ARM: pxa: use PWM lookup table for all machines ARM: dts: berlin: add 2nd clock for BG2Q sdhci0 and sdhci1 ARM: dts: berlin: correct BG2Q's sdhci2 2nd clock ARM: dts: am4372: fix clock source for arm twd and global timers ARM: at91: fix pinctrl driver selection ARM: at91/dt: add always-on to 1.8V regulator ARM: dts: vf610: fix clock definition for SAI2 ARM: imx: clk-vf610: fix SAI clock tree ARM: ixp4xx: fix read{b,w,l} return types irqchip/versatile-fpga: Fix PCI IRQ mapping on Versatile PB ARM: OMAP2+: enable REGULATOR_FIXED_VOLTAGE ARM: dts: add dm816x missing spi DT dma handles ARM: dts: add dm816x missing #mbox-cells cpufreq: s3c24xx: Do not mark s3c2410_plls_add as __init bus: sunxi-rsb: unlock on error in sunxi_rsb_read() ...
2015-12-17Merge branch 'libnvdimm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm fixes from Dan Williams: - Two bug fixes for misuse of PAGE_MASK in scatterlist and dma-debug. These are tagged for -stable. The scatterlist impact is potentially corrupted dma addresses on HIGHMEM enabled platforms. - A minor locking fix for the NFIT hot-add implementation that is new in 4.4-rc. This would only trigger in the case a hot-add raced driver removal. * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: dma-debug: Fix dma_debug_entry offset calculation Revert "scatterlist: use sg_phys()" nfit: acpi_nfit_notify(): Do not leave device locked
2015-12-17ARM: OMAP2+: AM43xx: select ARM TWD timerFelipe Balbi
Make sure to tell the kernel that AM437x devices have ARM TWD timer. Signed-off-by: Felipe Balbi <balbi@ti.com> [grygorii.strashko@ti.com: drop ARM Global timer selection, because it's incompatible with PM (cpuidle/cpufreq). So, it's unsafe to enable it unconditionally] Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17ARM: OMAP2+: am43xx: enable GENERIC_CLOCKEVENTS_BROADCASTGrygorii Strashko
System will misbehave in the following case: - AM43XX only build (UP); - CONFIG_CPU_IDLE=y - ARM TWD timer enabled and selected as clockevent device. In the above case, It's expected that broadcast timer will be used as backup timer when CPUIdle will put MPU in low power states where ARM TWD will stop and lose its context. But, the CONFIG_SMP might not be selected when kernel is built for AM43XX SoC only and, as result, GENERIC_CLOCKEVENTS_BROADCAST option will not be selected also. This will break CPUIdle and System will stuck in low power states. Hence, fix it by selecting GENERIC_CLOCKEVENTS_BROADCAST option for AM43XX SoCs always and add empty tick_broadcast() function implementation - no need to send any IPI on UP. After this change timer1 will be selected as broadcast timer the same way as for SMP, and CPUIdle will work properly. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17ARM: OMAP2+: Remove device creation for omap-pcm-audioPeter Ujfalusi
The omap-pcm in ASoC is no longer a platform device. No need to create this device anymore. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17ARM: OMAP1: Remove device creation for omap-pcm-audioPeter Ujfalusi
The omap-pcm in ASoC is no longer a platform device. No need to create this device anymore. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17ARM: OMAP2+: LogicPD Torpedo + Wireless: Add BluetoothAdam Ford
Bindings for the WL1283 Bluetooth was removed from the shared transport driver in commit c0bd1b9e5895 ("Revert ti-st: add device tree support") Until we havea better binding, we need to use the platform data to initialize Bluetooth. Signed-off-by: Adam Ford <aford173@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17ARM: OMAP2+: LogicPD Torpedo: Add LCD Type 15 SupportAdam Ford
Add basic support for Logic PD type 15 display for older development kits. This uses GPIO for the backlight. Signed-off-by: Adam Ford <aford173@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17ARM: dts: cm-t335: add support for bluetoothUri Mashiach
bluetooth HW is WLS1271 chip connected to UART1. Device tree modifications: - Pinmux for UART1. - Pinmux for bluetooth enable GPIO. Bluetooth enable GPIO is set to enable during startup by setting the relevant pinmux pin to pull-up. Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17ARM: dts: cm-t335: add support for DVI/LCDUri Mashiach
Add pinmux configuration for DVI/LCD. Add DRM display driver node with timing configurations for DVI and LCD. Add I2C GPIOs configurations for DVI and LCD enable. Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17ARM: dts: cm-t335: add support for I2C GPIO expanderUri Mashiach
The I2C GPIO expander (PCA9555) adds 16 GPIOs to the module. Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17ARM: dts: cm-t335: add support for SBC-T335Uri Mashiach
Add basic support for the SBC-T335. CompuLab SBC-T335 is a single baseboard computer. The SBC-T335 is based on the Texas Instruments Cortex-A8 Sitara AM3354 SoC. Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17ARM: dts: cm-t335: add support for USB0Ilya Ledvich
Enable USB0. Signed-off-by: Ilya Ledvich <ilya@compulab.co.il> Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17Add 'unsafe' user access functions for batched accessesLinus Torvalds
The naming is meant to discourage random use: the helper functions are not really any more "unsafe" than the traditional double-underscore functions (which need the address range checking), but they do need even more infrastructure around them, and should not be used willy-nilly. In addition to checking the access range, these user access functions require that you wrap the user access with a "user_acess_{begin,end}()" around it. That allows architectures that implement kernel user access control (x86: SMAP, arm64: PAN) to do the user access control in the wrapping user_access_begin/end part, and then batch up the actual user space accesses using the new interfaces. The main (and hopefully only) use for these are for core generic access helpers, initially just the generic user string functions (strnlen_user() and strncpy_from_user()). Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-12-17ARM: dts: omap: replace legacy *,wakeup property with wakeup-sourceSudeep Holla
Though the keyboard and other driver will continue to support the legacy "gpio-key,wakeup", "linux,wakeup" boolean property to enable the wakeup source, "wakeup-source" is the new standard binding. This patch replaces all the legacy wakeup properties with the unified "wakeup-source" property in order to avoid any futher copy-paste duplication. Cc: "Benoît Cousson" <bcousson@baylibre.com> Cc: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-17ARM: dts: am335x: replace gpio-key,wakeup with wakeup-source propertySudeep Holla
Though the keyboard driver for GPIO buttons(gpio-keys) will continue to check for/support the legacy "gpio-key,wakeup" boolean property to enable gpio buttons as wakeup source, "wakeup-source" is the new standard binding. This patch replaces the legacy "gpio-key,wakeup" with the unified "wakeup-source" property in order to avoid any futher copy-paste duplication. Cc: "Benoît Cousson" <bcousson@baylibre.com> Cc: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Tony Lindgren <tony@atomide.com>