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2017-10-04ARM: dts: stm32: use right pinctrl compatible for stm32f469Alexandre Torgue7-297/+537
Currently, same stm32f429-pinctrl driver is used for stm32f429 and stm32f469. As pin map is different between those 2 MCUs, a stm32f469-pinctrl driver has been recently added. This patch -allows to use stm32f469-pinctrl driver for stm32f469 boards -reworks stm32 devicetree files to fit with stm32f429 / stm32f469 In the same time it fixes an issue when only MACH_STM32F469 flag is selected in menuconfig. Fixes: d28bcd53fa90 ("ARM: stm32: Introduce MACH_STM32F469 flag") Reported-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
2017-10-04ARM: dts: stm32: Fix STMPE1600 binding on stm32429i-eval boardAlexandre Torgue1-3/+1
To declare gpio interrupt line for STMPE1600, 2 possibilities are offered: -use gpio binding (and then the gpiolib interface inside driver) -use interrupt binding as each gpio-controller are also interrupt controller on stm32f429. In STMPE 1600 node both (gpio and interrupt) bindings are defined. This patch fixes this issue and use only interrupt binding. Fixes: c04b2e72af8d ("ARM: dts: stm32: Enable STMPE1600 gpio expander of STM32F429-EVAL board") Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
2017-10-03ARM: defconfig: update Gemini defconfigLinus Walleij1-1/+2
This updates the Gemini defconfig with drivers merged for v4.13 or v4.14: - ATA driver is merged - DMA driver is merged - RTC driver gets selected from default Kconfig Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2017-10-03ARM: defconfig: FRAMEBUFFER_CONSOLE can no longer be =mArnd Bergmann3-3/+3
It is no longer possible to load this at runtime, so let's change the few remaining users to have it built-in all the time. arch/arm/configs/zeus_defconfig:115:warning: symbol value 'm' invalid for FRAMEBUFFER_CONSOLE arch/arm/configs/viper_defconfig:116:warning: symbol value 'm' invalid for FRAMEBUFFER_CONSOLE arch/arm/configs/pxa_defconfig:474:warning: symbol value 'm' invalid for FRAMEBUFFER_CONSOLE Reported-by: kernelci.org bot <bot@kernelci.org> Fixes: 6104c37094e7 ("fbcon: Make fbcon a built-time depency for fbdev") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Olof Johansson <olof@lixom.net>
2017-09-23as3645a: Use integer numbers for parsing LEDsSakari Ailus1-2/+6
Use integer numbers for LEDs, 0 is the flash and 1 is the indicator. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2017-09-23as3645a: Use ams,input-max-microamp as documented in DT bindingsSakari Ailus1-1/+1
DT bindings document the property "ams,input-max-microamp" that limits the chip's maximum input current. The driver and the DTS however used "peak-current-limit" property. Fix this by using the property documented in DT binding documentation. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2017-09-20ARM: dts: da850-evm: add serial and ethernet aliasesSekhar Nori1-0/+7
Add aliases for serial and ethernet nodes. Serial aliases help keep order of tty nodes fixed and ethernet alias is used by bootloader to setup mac address correctly. Reported-by: Adam Ford <aford173@gmail.com> Acked-by: Tony Lindgren <tony@atomide.com> Fixes: dd7deaf218bf ("ARM: davinci: da850: add DT node for ethernet") Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-09-19ARM: dts: am43xx-epos-evm: Remove extra CPSW EMAC entryYogesh Siraswar1-5/+1
On am438x EPOS boards there is only one ethernet port, remove extra port definition. This boot log warnings during PHY detection. Signed-off-by: Yogesh Siraswar <yogeshs@ti.com> Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-09-19ARM: dts: am33xx: Add spi alias to match SOC schematicsSuniel Mahesh1-0/+2
Linux bus numbers should match the numbers defined by the chip manufacturer. This patch add's spi aliases to achieve that bus naming convention. Signed-off-by: Suniel Mahesh <sunil.m@techveda.org> Signed-off-by: Karthik Tummala <karthik@techveda.org> Tested-by: Karthik Tummala <karthik@techveda.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-09-19ARM: OMAP2+: hsmmc: fix logic to call either omap_hsmmc_init or omap_hsmmc_late_init but not bothH. Nikolaus Schaller1-2/+2
With 4.13 kernel I get this boot message: [    1.051727] ------------[ cut here ]------------ [    1.051818] WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x54/0x74 [    1.051849] sysfs: cannot create duplicate filename '/devices/platform/omap_hsmmc.2' [    1.051879] Modules linked in: [    1.051971] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.13.0-letux+ #1360 [    1.052001] Hardware name: Generic OMAP3 (Flattened Device Tree) [    1.052062] [<c010f690>] (unwind_backtrace) from [<c010bba8>] (show_stack+0x10/0x14) [    1.052124] [<c010bba8>] (show_stack) from [<c075dc88>] (dump_stack+0x98/0xd0) [    1.052185] [<c075dc88>] (dump_stack) from [<c012f398>] (__warn+0xd0/0x100) [    1.052215] [<c012f398>] (__warn) from [<c012f3fc>] (warn_slowpath_fmt+0x34/0x44) [    1.052276] [<c012f3fc>] (warn_slowpath_fmt) from [<c02ebcb4>] (sysfs_warn_dup+0x54/0x74) [    1.052337] [<c02ebcb4>] (sysfs_warn_dup) from [<c02ebd90>] (sysfs_create_dir_ns+0x74/0x84) [    1.052398] [<c02ebd90>] (sysfs_create_dir_ns) from [<c0761b8c>] (kobject_add_internal+0xd0/0x294) [    1.052429] [<c0761b8c>] (kobject_add_internal) from [<c0761f00>] (kobject_add+0x6c/0x8c) [    1.052490] [<c0761f00>] (kobject_add) from [<c04e831c>] (device_add+0xe4/0x510) [    1.052551] [<c04e831c>] (device_add) from [<c04ec6e4>] (platform_device_add+0x130/0x1c0) [    1.052612] [<c04ec6e4>] (platform_device_add) from [<c01281c0>] (omap_hsmmc_late_init+0x3c/0x60) [    1.052673] [<c01281c0>] (omap_hsmmc_late_init) from [<c0b0fa44>] (omap3_pandora_legacy_init+0x24/0xb4) [    1.052734] [<c0b0fa44>] (omap3_pandora_legacy_init) from [<c0128178>] (pdata_quirks_check+0x30/0x3c) [    1.052795] [<c0128178>] (pdata_quirks_check) from [<c0b0f950>] (omap_generic_init+0xc/0x18) [    1.052856] [<c0b0f950>] (omap_generic_init) from [<c0b03480>] (customize_machine+0x1c/0x28) [    1.052917] [<c0b03480>] (customize_machine) from [<c0101938>] (do_one_initcall+0xa8/0x150) [    1.052947] [<c0101938>] (do_one_initcall) from [<c0b00d70>] (kernel_init_freeable+0x110/0x1d4) [    1.053009] [<c0b00d70>] (kernel_init_freeable) from [<c076f198>] (kernel_init+0x8/0x10c) [    1.053070] [<c076f198>] (kernel_init) from [<c01070f0>] (ret_from_fork+0x14/0x24) [    1.055023] ---[ end trace 44e490b09ac4ab88 ]--- This can be traced down to the calls of omap_hsmmc_init(pandora_mmc3); omap_hsmmc_late_init(pandora_mmc3); in omap3_pandora_legacy_init(). It turns out that both funcions disagree how to decide if the other one was alredy called. Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-09-19ARM: dts: dra7: Set a default parent to mcasp3_ahclkx_muxKeerthy1-0/+2
Assign a default parent to mcasp3_ahclkx_mux clock using the assigned-clock-parents property. This is helpful in cases like kexec where in the clock parent can be something other than the value at reset. Suggested-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-09-19ARM: OMAP2+: dra7xx: Set OPT_CLKS_IN_RESET flag for gpio1Keerthy1-0/+1
gpio1 soft reset fails in the kexec path as the optional clock is not enabled hence enable the HWMOD_CONTROL_OPT_CLKS_IN_RESET flag for gpio1 hwmod. Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-09-19ARM: dts: nokia n900: drop unneeded/undocumented parts of the dtsPavel Machek1-11/+0
Sakari mentioned that some parts of the dts are not needed and do not have proper documentation, yet. As the camera works without them, remove them for now. Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-09-18ARM: at91: Replace uses of virt_to_phys with __pa_symbolAlexandre Belloni1-2/+2
The PM code wrongly uses virt_to_phys() instead of __pa_symbol() and was not updated by commit 64fc2a947a98 ("ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbol") because it was not yet in tree. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2017-09-18ARM: dts: at91: sama5d27_som1_ek: fix USB host vbusNicolas Ferre1-1/+4
The USB host has 3 ports so we must specify the entries for each in the atmel,vbus-gpio property. The specified pin (PA27) is the vbus for USBB and not USBA. Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> [claudiu.beznea@microchip.com: change subject to match the desired prefix] Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
2017-09-18ARM: dts: at91: sama5d27_som1_ek: fix typosLudovic Desroches1-2/+2
Fix typos that prevent proper using of uart2 and uart4 devices. Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2017-09-18ARM: dts: at91: sama5d27_som1_ek: update pinmux/pinconf for LEDs and USBLudovic Desroches1-6/+6
There are some changes from the prototype board concerning LEDs and USB pins: - USBB power enable and red LED pins are inverted. - The polarity of LEDs is inverted too. Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2017-09-17arm/syscalls: Optimize address limit checkThomas Garnier2-0/+18
Disable the generic address limit check in favor of an architecture specific optimized implementation. The generic implementation using pending work flags did not work well with ARM and alignment faults. The address limit is checked on each syscall return path to user-mode path as well as the irq user-mode return function. If the address limit was changed, a function is called to report data corruption (stopping the kernel or process based on configuration). The address limit check has to be done before any pending work because they can reset the address limit and the process is killed using a SIGKILL signal. For example the lkdtm address limit check does not work because the signal to kill the process will reset the user-mode address limit. Signed-off-by: Thomas Garnier <thgarnie@google.com> Signed-off-by: Kees Cook <keescook@chromium.org> Tested-by: Kees Cook <keescook@chromium.org> Tested-by: Leonard Crestez <leonard.crestez@nxp.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Pratyush Anand <panand@redhat.com> Cc: Dave Martin <Dave.Martin@arm.com> Cc: Will Drewry <wad@chromium.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Andy Lutomirski <luto@amacapital.net> Cc: David Howells <dhowells@redhat.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-api@vger.kernel.org Cc: Yonghong Song <yhs@fb.com> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1504798247-48833-4-git-send-email-keescook@chromium.org
2017-09-17Revert "arm/syscalls: Check address limit on user-mode return"Thomas Garnier4-23/+8
This reverts commit 73ac5d6a2b6ac3ae8d1e1818f3e9946f97489bc9. The work pending loop can call set_fs after addr_limit_user_check removed the _TIF_FSCHECK flag. This may happen at anytime based on how ARM handles alignment exceptions. It leads to an infinite loop condition. After discussion, it has been agreed that the generic approach is not tailored to the ARM architecture and any fix might not be complete. This patch will be replaced by an architecture specific implementation. The work flag approach will be kept for other architectures. Reported-by: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Thomas Garnier <thgarnie@google.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Pratyush Anand <panand@redhat.com> Cc: Dave Martin <Dave.Martin@arm.com> Cc: Will Drewry <wad@chromium.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Andy Lutomirski <luto@amacapital.net> Cc: David Howells <dhowells@redhat.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-api@vger.kernel.org Cc: Yonghong Song <yhs@fb.com> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1504798247-48833-3-git-send-email-keescook@chromium.org
2017-09-09ARM: 8691/1: Export save_stack_trace_tsk()Dustin Brown1-0/+1
The kernel watchdog is a great debugging tool for finding tasks that consume a disproportionate amount of CPU time in contiguous chunks. One can imagine building a similar watchdog for arbitrary driver threads using save_stack_trace_tsk() and print_stack_trace(). However, this is not viable for dynamically loaded driver modules on ARM platforms because save_stack_trace_tsk() is not exported for those architectures. Export save_stack_trace_tsk() for the ARM architecture to align with x86 and support various debugging use cases such as arbitrary driver thread watchdog timers. Signed-off-by: Dustin Brown <dustinb@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-09-08ARM: implement memset32 & memset64Matthew Wilcox3-6/+34
Reuse the existing optimised memset implementation to implement an optimised memset32 and memset64. Link: http://lkml.kernel.org/r/20170720184539.31609-5-willy@infradead.org Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: David Miller <davem@davemloft.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Minchan Kim <minchan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-09-05KVM: arm/arm64: Fix guest external abort matchingJames Morse2-6/+19
The ARM-ARM has two bits in the ESR/HSR relevant to external aborts. A range of {I,D}FSC values (of which bit 5 is always set) and bit 9 'EA' which provides: > an IMPLEMENTATION DEFINED classification of External Aborts. This bit is in addition to the {I,D}FSC range, and has an implementation defined meaning. KVM should always ignore this bit when handling external aborts from a guest. Remove the ESR_ELx_EA definition and rewrite its helper kvm_vcpu_dabt_isextabt() to check the {I,D}FSC range. This merges kvm_vcpu_dabt_isextabt() and the recently added is_abort_sea() helper. CC: Tyler Baicar <tbaicar@codeaurora.org> Reported-by: gengdongjiu <gengdj.1984@gmail.com> Signed-off-by: James Morse <james.morse@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <cdall@linaro.org>
2017-09-04ARM: imx: mx31moboard: Remove unused 'dma' variableFabio Estevam1-1/+1
Commit 2436bdcda53f ("dma-coherent: remove the DMA_MEMORY_MAP and DMA_MEMORY_IO flags") missed to remove the 'dma' variable causing the following build warning: arch/arm/mach-imx/mach-mx31moboard.c:478:6: warning: unused variable 'dma' [-Wunused-variable] Remove the unused 'dma' variable. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-09-04mfd: twl: Move header file out of I2C realmWolfram Sang2-2/+2
include/linux/i2c is not for client devices. Move the header file to a more appropriate location. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Thierry Reding <thierry.reding@gmail.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-01ARM: multi_v7_defconfig: make eSDHC driver built-inYangbo Lu1-1/+1
Sometimes root file system is deployed on SD card. It's proper to build eSDHC driver into kernel. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2017-09-01clk: at91: add audio pll clock driversQuentin Schulz1-0/+4
This new clock driver set allows to have a fractional divided clock that would generate a precise clock particularly suitable for audio applications. The main audio pll clock has two children clocks: one that is connected to the PMC, the other that can directly drive a pad. As these two routes have different enable bits and different dividers and divider formulas, they are handled by two different drivers. Each of them could modify the rate of the main audio pll parent. The main audio pll clock can output 620MHz to 700MHz. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-09-01dma-coherent: remove the DMA_MEMORY_MAP and DMA_MEMORY_IO flagsChristoph Hellwig2-33/+23
DMA_MEMORY_IO was never used in the tree, so remove it. That means there is no need for the DMA_MEMORY_MAP flag either now, so remove it as well and change dma_declare_coherent_memory to return a normal errno value. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
2017-08-31KVM: update to new mmu_notifier semantic v2Jérôme Glisse1-6/+0
Calls to mmu_notifier_invalidate_page() were replaced by calls to mmu_notifier_invalidate_range() and are now bracketed by calls to mmu_notifier_invalidate_range_start()/end() Remove now useless invalidate_page callback. Changed since v1 (Linus Torvalds) - remove now useless kvm_arch_mmu_notifier_invalidate_page() Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Tested-by: Mike Galbraith <efault@gmx.de> Tested-by: Adam Borowski <kilobyte@angband.pl> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: kvm@vger.kernel.org Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-08-31arm: dts: ls1021a: Share all MSIsMinghuan Lian1-2/+2
In order to maximize the use of MSI, a PCIe controller will share all MSI controllers. The patch changes msi-parent to refer to all MSI controller dts nodes. Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-08-31arm: dts: ls1021a: Fix typo of MSI compatible stringMinghuan Lian1-2/+2
"1" should be replaced by "l". This is a typo. The patch is to fix it. Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-08-31irqchip/gic-v3-its: Add VPE interrupt maskingMarc Zyngier1-0/+6
When masking/unmasking a doorbell interrupt, it is necessary to issue an invalidation to the corresponding redistributor. We use the DirectLPI feature by writting directly to the corresponding redistributor. Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-08-31irqchip/gic-v3-its: Add VPENDBASER/VPROPBASER accessorsMarc Zyngier1-0/+28
V{PEND,PROP}BASER being 64bit registers, they need some ad-hoc accessors on 32bit, specially given that VPENDBASER contains a Valid bit, making the access a bit convoluted. Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-08-30ARM: dts: at91: at91sam9g45: add AC97Dmitry Rezvanov2-0/+25
AT91SAM9G45 has an AC97 controller, but it is not described in the dts file. This patch adds AC97 node in device tree. Signed-off-by: Dmitry Rezvanov <dmitry.rezvanov@yandex.ru> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-08-29ARM: 8692/1: mm: abort uaccess retries upon fatal signalMark Rutland1-1/+4
When there's a fatal signal pending, arm's do_page_fault() implementation returns 0. The intent is that we'll return to the faulting userspace instruction, delivering the signal on the way. However, if we take a fatal signal during fixing up a uaccess, this results in a return to the faulting kernel instruction, which will be instantly retried, resulting in the same fault being taken forever. As the task never reaches userspace, the signal is not delivered, and the task is left unkillable. While the task is stuck in this state, it can inhibit the forward progress of the system. To avoid this, we must ensure that when a fatal signal is pending, we apply any necessary fixup for a faulting kernel instruction. Thus we will return to an error path, and it is up to that code to make forward progress towards delivering the fatal signal. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Steve Capper <steve.capper@arm.com> Cc: stable@vger.kernel.org Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-08-29ARM: 8690/1: lpae: build TTB control register value from scratch in v7_ttb_setupHoeun Ryu1-2/+1
Reading TTBCR in early boot stage might return the value of the previous kernel's configuration, especially in case of kexec. For example, if normal kernel (first kernel) had run on a configuration of PHYS_OFFSET <= PAGE_OFFSET and crash kernel (second kernel) is running on a configuration PHYS_OFFSET > PAGE_OFFSET, which can happen because it depends on the reserved area for crash kernel, reading TTBCR and using the value to OR other bit fields might be risky because it doesn't have a reset value for TTBCR. Suggested-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Hoeun Ryu <hoeun.ryu@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-08-29ARM: dts: uniphier: add pinctrl groups of ethernet phy modeKunihiko Hayashi1-0/+15
Add pinctrl groups of ethenet phy mode, such as "ether_rgmii", "ether_rmii", and "ether_mii". Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-28ARM: dts: uniphier: fix size of sdctrl nodesMasahiro Yamada2-2/+2
All registers are located within 0x400 size from the base address. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-28ARM: dts: uniphier: add AIDET nodesMasahiro Yamada5-0/+35
Add UniPhier AIDET (ARM Interrupt Detector) nodes to support active low interrupts. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-28arm: dts: sunxi: Revert EMAC changesMaxime Ripard10-128/+0
Since the discussion is not settled yet for the EMAC, and that the release in getting really close, let's revert the changes for now, and we'll reintroduce them later. Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-08-28Revert "ARM: dts: sun8i: h3: Enable dwmac-sun8i on the Beelink X2"Maxime Ripard1-8/+1
This reverts commit ddb56254ae52acff7bd7fbd8f963e79bffc324d4. The EMAC bindings have not stabilized yet, so we can't commit to keeping them stable. Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-08-27ARM: dts: rk3228-evb: Fix the compiling errorDavid Wu1-2/+2
This patch solves the following error: arch/arm/boot/dts/rk3228-evb.dtb: ERROR (phandle_references): Reference to non-existent node or label "phy0" Fixess db40f15b53e4 ("ARM: dts: rk3228-evb: Enable the integrated PHY for gmac") Signed-off-by: David Wu <david.wu@rock-chips.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-26media: arm: dts: omap3: N9/N950: Add AS3645A camera flashSakari Ailus1-0/+14
Add the as3645a flash controller to the DT source. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-25futex: Remove duplicated code and fix undefined behaviourJiri Slaby1-22/+4
There is code duplicated over all architecture's headers for futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr, and comparison of the result. Remove this duplication and leave up to the arches only the needed assembly which is now in arch_futex_atomic_op_inuser. This effectively distributes the Will Deacon's arm64 fix for undefined behaviour reported by UBSAN to all architectures. The fix was done in commit 5f16a046f8e1 (arm64: futex: Fix undefined behaviour with FUTEX_OP_OPARG_SHIFT usage). Look there for an example dump. And as suggested by Thomas, check for negative oparg too, because it was also reported to cause undefined behaviour report. Note that s390 removed access_ok check in d12a29703 ("s390/uaccess: remove pointless access_ok() checks") as access_ok there returns true. We introduce it back to the helper for the sake of simplicity (it gets optimized away anyway). Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [s390] Acked-by: Chris Metcalf <cmetcalf@mellanox.com> [for tile] Reviewed-by: Darren Hart (VMware) <dvhart@infradead.org> Reviewed-by: Will Deacon <will.deacon@arm.com> [core/arm64] Cc: linux-mips@linux-mips.org Cc: Rich Felker <dalias@libc.org> Cc: linux-ia64@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: peterz@infradead.org Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: sparclinux@vger.kernel.org Cc: Jonas Bonn <jonas@southpole.se> Cc: linux-s390@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: linux-hexagon@vger.kernel.org Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Matt Turner <mattst88@gmail.com> Cc: linux-snps-arc@lists.infradead.org Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: linux-xtensa@linux-xtensa.org Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: openrisc@lists.librecores.org Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Stafford Horne <shorne@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Richard Henderson <rth@twiddle.net> Cc: Chris Zankel <chris@zankel.net> Cc: Michal Simek <monstr@monstr.eu> Cc: Tony Luck <tony.luck@intel.com> Cc: linux-parisc@vger.kernel.org Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: linux-alpha@vger.kernel.org Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Cc: "David S. Miller" <davem@davemloft.net> Link: http://lkml.kernel.org/r/20170824073105.3901-1-jslaby@suse.cz
2017-08-25ARM: ux500: don't select CPUFREQ_DTArnd Bergmann1-1/+0
The new 'select CPUFREQ_DT' statement causes a warning in some configurations: warning: (ARCH_U8500) selects CPUFREQ_DT which has unmet direct dependencies (CPU_FREQ && HAVE_CLK && OF && (!CPU_THERMAL || THERMAL)) No other platform does this, so I think for consistency it's best if we remove it again from ux500 and instead add the driver to the defconfig. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-08-24ARM: OMAP2+: fix missing variable declarationArnd Bergmann1-0/+1
The function that was added doesn't actually build: arch/arm/mach-omap2/display.c: In function 'omapdss_init_fbdev': arch/arm/mach-omap2/display.c:184:2: error: 'r' undeclared (first use in this function) This adds a declaration for 'r' to fix it. Fixes: 5ce783025c82 ("ARM: OMAP2+: Don't register omapdss device for omapdrm") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-08-23ARM: dts: exynos: add needs-hpd for Odroid-XU3/4Hans Verkuil1-0/+1
CEC support was added for Exynos5 in 4.13, but for the Odroids we need to set 'needs-hpd' as well since CEC is disabled when there is no HDMI hotplug signal, just as for the exynos4 Odroid-U3. This is due to the level-shifter that is disabled when there is no HPD, thus blocking the CEC signal as well. Same close-but-no-cigar board design as the Odroid-U3. Tested with my Odroid XU4. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-08-23ARM: at91: don't select CONFIG_ARM_CPU_SUSPEND for old platformsArnd Bergmann2-1/+13
My previous patch fixed a link error for all at91 platforms when CONFIG_ARM_CPU_SUSPEND was not set, however this caused another problem on a configuration that enabled CONFIG_ARCH_AT91 but none of the individual SoCs, and that also enabled CPU_ARM720 as the only CPU: warning: (ARCH_AT91 && SOC_IMX23 && SOC_IMX28 && ARCH_PXA && MACH_MVEBU_V7 && SOC_IMX6 && ARCH_OMAP3 && ARCH_OMAP4 && SOC_OMAP5 && SOC_AM33XX && SOC_DRA7XX && ARCH_EXYNOS3 && ARCH_EXYNOS4 && EXYNOS5420_MCPM && EXYNOS_CPU_SUSPEND && ARCH_VEXPRESS_TC2_PM && ARM_BIG_LITTLE_CPUIDLE && ARM_HIGHBANK_CPUIDLE && QCOM_PM) selects ARM_CPU_SUSPEND which has unmet direct dependencies (ARCH_SUSPEND_POSSIBLE) arch/arm/kernel/sleep.o: In function `cpu_resume': (.text+0xf0): undefined reference to `cpu_arm720_suspend_size' arch/arm/kernel/suspend.o: In function `__cpu_suspend_save': suspend.c:(.text+0x134): undefined reference to `cpu_arm720_do_suspend' This improves the hack some more by only selecting ARM_CPU_SUSPEND for the part that requires it, and changing pm.c to drop the contents of unused init functions so we no longer refer to cpu_resume on at91 platforms that don't need it. Fixes: cc7a938f5f30 ("ARM: at91: select CONFIG_ARM_CPU_SUSPEND") Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-08-23ARM: dts: rockchip: enable usb for rv1108-evbFrank Wang1-0/+24
Rockchip's rv1108-evb board has one usb otg controller and one usb host controller, each usb controller connect with one usb-phy port through UTMI+ interface. This patch enables them to support usb on rv1108-evb board. Signed-off-by: Frank Wang <frank.wang@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-23ARM: dts: rockchip: add usb nodes for rv1108 SoCsFrank Wang1-1/+72
This patch adds usb otg/host controllers and phys nodes for RV1108 SoCs. Signed-off-by: Frank Wang <frank.wang@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-23ARM: dts: aspeed-g4: fix AHB window size of the SMC controllersCédric Le Goater1-2/+2
The window of the Aspeed AST2400 SMC Controllers to map chips on the AHB Bus has a 256MB size. The full window range is [ 0x20000000 - 0x2FFFFFFF ] for the FMC controller [ 0x30000000 - 0x3FFFFFFF ] for the SPI controller This change requires CONFIG_VMSPLIT_2G to be set. Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Joel Stanley <joel@jms.id.au>