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2015-01-14ARM: OMAP2+: Fix error handling for omap2_clk_enable_init_clocksTony Lindgren
We need to check if we got the clock before trying to do anything with it. Otherwise we will get something like this: Unable to handle kernel paging request at virtual address fffffffe ... [<c04bef78>] (clk_prepare) from [<c00338a4>] (omap2_clk_enable_init_clocks+0x50/0x8) [<c00338a4>] (omap2_clk_enable_init_clocks) from [<c0876838>] (dm816x_dt_clk_init+0) ... Let's add check for the clock and WARN if the init clock was not found. Cc: Brian Hutchinson <b.hutchman@gmail.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Tero Kristo <t-kristo@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-01-14ARM: versatile: core: Remove unused functionRickard Strandqvist
Remove the function versatile_leds_event() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-14ARM: OMAP2+: Remove unused ti81xx platform init codeTony Lindgren
The support for 81xx was never working in mainline, and the broken legacy booting support has been removed. There are patches coming to make 81xx boot with device tree, and for that we won't need any of this legacy platform code, so let's just remove it. Cc: Brian Hutchinson <b.hutchman@gmail.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-01-14ARM: multi_v7_defconfig: Enable Hip01 platformWang Long
Enable Hip01 platform support for multi_v7_defconfig. Signed-off-by: Wang Long <long.wanglong@huawei.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-14Merge tag 'mvebu-dt-3.20' of git://git.infradead.org/linux-mvebu into next/dtOlof Johansson
Merge "mvebu: dt for v3.20" from Andrew Lunn: mvebu dt changes for v3.20 (part #1) - Add Armada 388 General Purpose Development Board support - Add Device Tree description of the Armada 388 SoC - Document the Device Tree binding for the Armada 388 SoC - a38x: Add missing labels - a38x: Add more pinctrl functions - Add Armada 385 Access Point Development Board support - Add a number of pinctrl functions - A38x: Remove redundant pinctrl informations - a38x: Fix node names - Add support for Seagate BlackArmor NAS220 - kirkwood: enable phy driver for SATA controller on 88f6192 - gpio_poweroff support for Iomega ix2-200 - Use all remaining MTD space foor rootfs of Iomega ix2-200 * tag 'mvebu-dt-3.20' of git://git.infradead.org/linux-mvebu: ARM: mvebu: Add Armada 388 General Purpose Development Board support ARM: mvebu: Add Device Tree description of the Armada 388 SoC ARM: mvebu: Document the Device Tree binding for the Armada 388 SoC ARM: mvebu: a38x: Add missing labels ARM: mvebu: a38x: Add more pinctrl functions ARM: mvebu: Add Armada 385 Access Point Development Board support ARM: mvebu: Add a number of pinctrl functions ARM: mvebu: A38x: Remove redundant pinctrl informations ARM: mvebu: a38x: Fix node names Kirkwood: add support for Seagate BlackArmor NAS220 ARM: dts: kirkwood: enable phy driver for SATA controller on 88f6192 ARM: dts: add gpio_poweroff support for Iomega ix2-200 ARM: dts: use all remaining MTD space foor rootfs of Iomega ix2-200 Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-14Merge tag 'mvebu-defconfig-3.20' of git://git.infradead.org/linux-mvebu into ↵Olof Johansson
next/defconfig Merge "mvebu: defconfig for v3.20" from Andrew Lunn: mvebu defconfig changes for v3.20 - enable CPUFREQ_DT in mvebu_v7_defconfig * tag 'mvebu-defconfig-3.20' of git://git.infradead.org/linux-mvebu: ARM: mvebu: enable CPUFREQ_DT in mvebu_v7_defconfig Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-14Merge tag 'mvebu-soc-3.20' of git://git.infradead.org/linux-mvebu into next/socOlof Johansson
Merge "mvebu: SoC for 3.20" from Andrew Lunn: mvebu SoC changes for v3.20 (part #1) - Update the SoC ID and revision definitions - Add UART1 as DEBUG_LL possible target - Rename DEBUG_LL to indicate UART index * tag 'mvebu-soc-3.20' of git://git.infradead.org/linux-mvebu: ARM: mvebu: Update the SoC ID and revision definitions ARM: mvebu: Add UART1 as DEBUG_LL possible target ARM: mvebu: Rename DEBUG_LL to indicate UART index Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-15ARM: shmobile: sh73a0 dtsi: Add memory-controller nodesGeert Uytterhoeven
Add device nodes for the two SDRAM Bus State Controllers. The SBSCs are located in the A4BC0 resp. A4BC1 PM domains, which must not be powered down, else the system will crash. References to the A4BC0 and A4BC1 PM domains will be added later. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-01-15ARM: shmobile: r8a7740 dtsi: Add memory-controller nodeGeert Uytterhoeven
Add a device node for the DDR3 Bus State Controller (DBSC3). The DBSC3 is located in the A4S PM domain, which must not be powered down, else the system will crash. This has no visible effect for now, as A4S was never turned off anyway because its child PM domain A3SM contains the CPU core. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-01-15ARM: shmobile: r8a73a4 dtsi: Add memory-controller nodesGeert Uytterhoeven
Add device nodes for the two DDR Bus State Controllers (DBSC). The DBSCs are located in the A3BC PM domain, which must not be powered down, else the system will crash. A reference to the A3BC PM domain will be added later. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-01-15ARM: shmobile: R-Mobile: Add DT support for PM domainsGeert Uytterhoeven
Populate the PM domains from DT, and provide support to hook up devices to their respective PM domain. The always-on power area (e.g. C5 on r8a7740) is created as a PM domain without software control, to allow Run-Time management of module clocks for hardware blocks inside this area. Special cases like PM domains containing CPUs, the console device, or Coresight-ETM, are handled by scanning the DT topology. As long as the ARM debug/perf code doesn't use resource management with runtime PM support, the power area containing Coresight-ETM (e.g. D4 on r8a7740) must be kept powered to avoid a crash during resume from s2ram (dbg_cpu_pm_notify() calls reset_ctrl_regs() unconditionally, causing an undefined instruction oops). Initialization is done from core_initcall(), as the "renesas,intc-irqpin" driver uses postcore_initcall(). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-01-14Merge tag 'uaccess_for_upstream' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost into asm-generic Merge "uaccess: fix sparse warning on get/put_user for bitwise types" from Michael S. Tsirkin: At the moment, if p and x are both tagged as bitwise types, some of get_user(x, p), put_user(x, p), __get_user(x, p), __put_user(x, p) might produce a sparse warning on many architectures. This is a false positive: *p on these architectures is loaded into long (typically using asm), then cast back to typeof(*p). When typeof(*p) is a bitwise type (which is uncommon), such a cast needs __force, otherwise sparse produces a warning. Some architectures already have the __force tag, add it where it's missing. I verified that adding these __force casts does not supress any useful warnings. Specifically, vhost wants to read/write bitwise types in userspace memory using get_user/put_user. At the moment this triggers sparse errors, since the value is passed through an integer. For example: __le32 __user *p; __u32 x; both put_user(x, p); and get_user(x, p); should be safe, but produce warnings on some architectures. While there, I noticed that a bunch of architectures violated coding style rules within uaccess macros. Included patches to fix them up. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> * tag 'uaccess_for_upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (37 commits) sparc32: nocheck uaccess coding style tweaks sparc64: nocheck uaccess coding style tweaks xtensa: macro whitespace fixes sh: macro whitespace fixes parisc: macro whitespace fixes m68k: macro whitespace fixes m32r: macro whitespace fixes frv: macro whitespace fixes cris: macro whitespace fixes avr32: macro whitespace fixes arm64: macro whitespace fixes arm: macro whitespace fixes alpha: macro whitespace fixes blackfin: macro whitespace fixes sparc64: uaccess_64 macro whitespace fixes sparc32: uaccess_32 macro whitespace fixes avr32: whitespace fix sh: fix put_user sparse errors metag: fix put_user sparse errors ia64: fix put_user sparse errors ...
2015-01-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Don't use uninitialized data in IPVS, from Dan Carpenter. 2) conntrack race fixes from Pablo Neira Ayuso. 3) Fix TX hangs with i40e, from Jesse Brandeburg. 4) Fix budget return from poll calls in dnet and alx, from Eric Dumazet. 5) Fix bugus "if (unlikely(x) < 0)" test in AF_PACKET, from Christoph Jaeger. 6) Fix bug introduced by conversion to list_head in TIPC retransmit code, from Jon Paul Maloy. 7) Don't use GFP_NOIO under spinlock in USB kaweth driver, from Alexey Khoroshilov. 8) Fix bridge build with INET disabled, from Arnd Bergmann. 9) Fix netlink array overrun for PROBE attributes in openvswitch, from Thomas Graf. 10) Don't hold spinlock across synchronize_irq() in tg3 driver, from Prashant Sreedharan. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (44 commits) tg3: Release tp->lock before invoking synchronize_irq() tg3: tg3_reset_task() needs to use rtnl_lock to synchronize tg3: tg3_timer() should grab tp->lock before checking for tp->irq_sync team: avoid possible underflow of count_pending value for notify_peers and mcast_rejoin openvswitch: packet messages need their own probe attribtue i40e: adds FCoE configure option cxgb4vf: Fix queue allocation for 40G adapter netdevice: Add missing parentheses in macro bridge: only provide proxy ARP when CONFIG_INET is enabled neighbour: fix base_reachable_time(_ms) not effective immediatly when changed net: fec: fix MDIO bus assignement for dual fec SoC's xen-netfront: use different locks for Rx and Tx stats drivers: net: cpsw: fix multicast flush in dual emac mode cxgb4vf: Initialize mdio_addr before using it net: Corrected the comment describing the ndo operations to reflect the actual prototype for couple of operations usb/kaweth: use GFP_ATOMIC under spin_lock in usb_start_wait_urb() MAINTAINERS: add me as ibmveth maintainer tipc: fix bug in broadcast retransmit code update ip-sysctl.txt documentation (v2) net/at91_ether: prepare and unprepare clock ...
2015-01-14ARM: config: multi_v7: Update it for Keystone defconfigGrygorii Strashko
Sync multi_v7_defconfig with the current keystone_defconfig with recent updates. CONFIG_PCI_KEYSTONE=y CONFIG_MTD_NAND_DAVINCI=y CONFIG_I2C_DAVINCI=y CONFIG_SPI_DAVINCI=y CONFIG_GPIO_DAVINCI=y CONFIG_GPIO_SYSCON=y CONFIG_POWER_RESET_KEYSTONE=y CONFIG_DAVINCI_WATCHDOG CONFIG_USB_DWC3=y CONFIG_KEYSTONE_USB_PHY=y CONFIG_TI_AEMIF=y CONFIG_KEYSTONE_IRQ=y Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Grygorii Strashko <grygorii.strashko@linaro.org> Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-15ARM: dts: Configure regulators for suspend on exynos Peach boardsJavier Martinez Canillas
The regulator core now has support to choose if a regulator has to be enabled or disabled during system suspend and also supports changing the regulator operating mode during runtime and when the system enters into sleep mode. To lower power during suspend, configure the regulators state using the same configuration found in the ChromeOS 3.8 kernel Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-01-15ARM: dts: Set Peach boards USB WebCam regulators to always onJavier Martinez Canillas
The Exynos5420 Peach Pit and Exynos5800 Peach Pi boards have a built-in Silicon Motion USB UVC WebCam whose power supply is the tps65090 fet5 regulator. Since the camera uses the generic USB Video Class driver and this does not grab a regulator, mark the regulator as always on so the USB device is enumerated and usable. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-01-15ARM: dts: Add lid GPIO key device node for Peach boardsJavier Martinez Canillas
The Exynos5420 Peach Pit and Exynos5800 Peach Pi boards have both a power and lid GPIO keys but only the former was defined in the DTS. Add DTS snippets for the lid GPIO key too. These were taken from the downstream ChromeOS 3.8 kernel tree. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-01-15ARM: dts: Add power and lid GPIO keys pinctrl for exynos5250-snowJavier Martinez Canillas
The Exynos5250 Snow Chromebook has GPIO keys for power and lid so the SoC I/O pins have to be configured in external interrupt mode. Currently, this is working without setting the pinctrl lines but is better to set it explicitly instead of relying on the previous state of the I/O pins. The DTS snippets were taken from the downstream ChromeOS tree. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-01-15ARM: EXYNOS: Add exynos3250 suspend-to-ram supportChanwoo Choi
This patch supports suspend-to-ram for Exynos3250 SoC and the SoC doesn't contain L2 cache. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-01-14ARM: sirf: drop Marco low-level debug portBarry Song
Marco will not be supported any more. it has been replaced by CSR Atlas7. Signed-off-by: Barry Song <Baohua.Song@csr.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2015-01-14ARM: optprobes: execute instruction during restoring if possible.Wang Nan
This patch removes software emulation or simulation for most of probed instructions. If the instruction doesn't use PC relative addressing, it will be translated into following instructions in the restore code in code template: ldmia {r0 - r14} // restore all instruction except PC <instruction> // direct execute the probed instruction b next_insn // branch to next instruction. Signed-off-by: Wang Nan <wangnan0@huawei.com> Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Jon Medhurst <tixy@linaro.org>
2015-01-14ARM: 8252/1: sa1100: use pxa_timer clocksource driverDmitry Eremin-Solenikov
Use pxa_timer clocksource driver. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-01-14ARM: 8250/1: sa1100: provide OSTIMER0 clock for pxa_timerDmitry Eremin-Solenikov
Pxa_timer clocksource requires OSTIMER0 clock to be provided. Add dummy clock returning proper rate. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-01-14ARM: davinci: serial.c: remove unused serial_read_reg()Rickard Strandqvist
Remove function serial_read_reg() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2015-01-14ARM: sunxi: dt: Add sample and output mmc clocksMaxime Ripard
Add the sample and output clocks for the MMC phase support. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Tested-by: Chen-Yu Tsai <wens@csie.org>
2015-01-14net: fec: fix MDIO bus assignement for dual fec SoC'sStefan Agner
On i.MX28, the MDIO bus is shared between the two FEC instances. The driver makes sure that the second FEC uses the MDIO bus of the first FEC. This is done conditionally if FEC_QUIRK_ENET_MAC is set. However, in newer designs, such as Vybrid or i.MX6SX, each FEC MAC has its own MDIO bus. Simply removing the quirk FEC_QUIRK_ENET_MAC is not an option since other logic, triggered by this quirk, is still needed. Furthermore, there are board designs which use the same MDIO bus for both PHY's even though the second bus would be available on the SoC side. Such layout are popular since it saves pins on SoC side. Due to the above quirk, those boards currently do work fine. The boards in the mainline tree with such a layout are: - Freescale Vybrid Tower with TWR-SER2 (vf610-twr.dts) - Freescale i.MX6 SoloX SDB Board (imx6sx-sdb.dts) This patch adds a new quirk FEC_QUIRK_SINGLE_MDIO for i.MX28, which makes sure that the MDIO bus of the first FEC is used in any case. However, the boards above do have a SoC with a MDIO bus for each FEC instance. But the PHY's are not connected in a 1:1 configuration. A proper device tree description is needed to allow the driver to figure out where to find its PHY. This patch fixes that shortcoming by adding a MDIO bus child node to the first FEC instance, along with the two PHY's on that bus, and making use of the phy-handle property to add a reference to the PHY's. Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-14ARM: shmobile: Enable kzm9g board in multiplatform defconfigGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-01-13Merge tag 'arm-soc/for-3.20/brcmstb-smp' of ↵Olof Johansson
http://github.com/broadcom/stblinux into next/soc Merge "ARM: brcmstb: SMP updates for v3.20" from Florian Fainelli: This pull request contains updates to the brcmstb SMP code to use the manual sequence instead of hardware state machine since it is not reliable. * tag 'arm-soc/for-3.20/brcmstb-smp' of http://github.com/broadcom/stblinux: ARM: brcmstb: update CPU power management sequence Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-13Merge tag 'v3.20-next-dts' of https://github.com/mbgg/linux-mediatek into ↵Olof Johansson
next/dt Merge "ARM: mediatek: DT changes for v3.20 (round 1)" from Matthias Brugger: This adds support for the mediatek sysirq and the uarts for the following SoCs: - mt8135 - mt8127 - mt6598 For mt6592 only the sysirq support was added. * tag 'v3.20-next-dts' of https://github.com/mbgg/linux-mediatek: ARM: mediatek: dts: Add uart to Aquaris5 ARM: mediatek: dts: Add uart to mt6589 dt-bindings: add mt6592 compatible string for mediatek sysirq ARM: mediatek: Add sysirq device node to mt6592 dtsi ARM: mediatek: dts: Add UART dts for MT8127 and MT8135 boards DTS: serial: Add bindings document for the Mediatek UARTs ARM: mediatek: add UART dts for mt8127 and mt8135 ARM: mediatek: Add sysirq in mt6589/mt8135/mt8127 dtsi Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-13Merge tag 'v3.20-next-defconfig' of https://github.com/mbgg/linux-mediatek ↵Olof Johansson
into next/defconfig Merge "ARM: mediatek: defconfig changes for v3.20" from Matthias Brugger: Add mediatek uart to multi_v7_defconfig * tag 'v3.20-next-defconfig' of https://github.com/mbgg/linux-mediatek: ARM: Add mediatek SoC UART support in defconfig Signed-off-by: Olof Johansson <olof@lixom.net>
2015-01-13of: replace Asahi Kasei Corp vendor prefixKuninori Morimoto
Current vendor-prefixes.txt already has "ak" prefix for Asahi Kasei Corp by ae8c4209af2c(of: Add vendor prefix for Asahi Kasei Corp.) It went through the appropriate review process. But, almost all Asahi Kasei chip drivers are using "asahi-kasei" prefix today. (arch/arm/boot/dts/tegra20-seaboard.dts only is using "ak,ak8975", but there are instances of "asahi-kasei,ak8975" in other dts files. And drivers/iio/magnetometer/ak8975.c doesn't support "ak,ak8975" prefix) So, we made a mistake there. In addition, checkpatch.pl reports WARNING if it is using "asahi-kasei" prerfix in DT file. (DT compatible string vendor "asahi-kasei" appears un-documented) Marking it deprecated and warning with checkpatch is certainly preferable. So, this patch replace "ak" to "asahi-kasei" in vendor-prefixes.txt. (and fixup tegra20-seaboard) OTOH, Asahi Kasei is usually referred to as "AKM", but this patch doesn't care about it. Because no DT is using that today. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Rob Herring <robh@kernel.org>
2015-01-13ARM: OMAP3: Remove legacy support for am35xx-emacTony Lindgren
This is no longer needed now that 3517 is booting in device tree only mode. Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-01-13ARM: OMAP3: Remove cm-t3517 legacy supportTony Lindgren
This board is working with device tree based booting so there should not be any need to keep the legacy booting support around. People using this board can boot it with appended DTB with existing bootloader. By removing the 3517 legacy booting support we can get a bit closer to making all of omap3 boot in device tree only mode. Cc: Dmitry Lifshitz <lifshitz@compulab.co.il> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-01-13ARM: OMAP3: Remove legacy support for am3517craneTony Lindgren
This board is working with device tree based booting so there should not be any need to keep the legacy booting support around. People using this board can boot it with appended DTB with existing bootloader. By removing the 3517 legacy booting support we can get a bit closer to making all of omap3 boot in device tree only mode. Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-01-13ARM: OMAP3: Remove legacy support for am3517-evmTony Lindgren
This board is working with device tree based booting so there should not be any need to keep the legacy booting support around. People using this board can boot it with appended DTB with existing bootloader. By removing the 3517 legacy booting support we can get a bit closer to making all of omap3 boot in device tree only mode. Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-01-13ARM: kprobes: check register usage for probed instruction.Wang Nan
This patch utilizes the previously introduced checker to check register usage for probed ARM instruction and saves it in a mask. A further patch will use such information to avoid simulation or emulation. Signed-off-by: Wang Nan <wangnan0@huawei.com> Reviewed-by: Jon Medhurst <tixy@linaro.org> Signed-off-by: Jon Medhurst <tixy@linaro.org>
2015-01-13ARM: kprobes: Fix unreliable MRS instruction testsJon Medhurst (Tixy)
For the instruction 'mrs Rn, cpsr' the resulting value of Rn can vary due to external factors we can't control. So get the test code to mask out these indeterminate bits. Signed-off-by: Jon Medhurst <tixy@linaro.org>
2015-01-13ARM: kprobes: enable OPTPROBES for ARM 32Wang Nan
This patch introduce kprobeopt for ARM 32. Limitations: - Currently only kernel compiled with ARM ISA is supported. - Offset between probe point and optinsn slot must not larger than 32MiB. Masami Hiramatsu suggests replacing 2 words, it will make things complex. Futher patch can make such optimization. Kprobe opt on ARM is relatively simpler than kprobe opt on x86 because ARM instruction is always 4 bytes aligned and 4 bytes long. This patch replace probed instruction by a 'b', branch to trampoline code and then calls optimized_callback(). optimized_callback() calls opt_pre_handler() to execute kprobe handler. It also emulate/simulate replaced instruction. When unregistering kprobe, the deferred manner of unoptimizer may leave branch instruction before optimizer is called. Different from x86_64, which only copy the probed insn after optprobe_template_end and reexecute them, this patch call singlestep to emulate/simulate the insn directly. Futher patch can optimize this behavior. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Will Deacon <will.deacon@arm.com> Reviewed-by: Jon Medhurst (Tixy) <tixy@linaro.org> Signed-off-by: Jon Medhurst <tixy@linaro.org>
2015-01-13ARM: kprobes: Add test cases for stack consuming instructionsJon Medhurst (Tixy)
These have extra 'checker' functions associated with them so lets make sure those get covered by testing. As they may create uninitialised space on the stack we also update the test code to ensure such space is consistent between test runs. This is done by disabling interrupts in setup_test_context(). Signed-off-by: Jon Medhurst <tixy@linaro.org>
2015-01-13ARM: kprobes: disallow probing stack consuming instructionsWang Nan
This patch prohibits probing instructions for which the stack requirements are unable to be determined statically. Some test cases are found not work again after the modification, this patch also removes them. Signed-off-by: Wang Nan <wangnan0@huawei.com> Reviewed-by: Jon Medhurst <tixy@linaro.org> Signed-off-by: Jon Medhurst <tixy@linaro.org>
2015-01-13ARM: kprobes: collects stack consumption for store instructionsWang Nan
This patch uses the previously introduced checker functionality on store instructions to record their stack consumption information to arch_probes_insn. Signed-off-by: Wang Nan <wangnan0@huawei.com> Reviewed-by: Jon Medhurst <tixy@linaro.org> Signed-off-by: Jon Medhurst <tixy@linaro.org>
2015-01-13ARM: dts: omap3-gta04: Add handling for tv outputMarek Belisko
Add handling for gta04 tv out chain: venc -> opa362 -> svideo Use invert-polarity in venc node because opa362 is doing polarity inversion also. Signed-off-by: Marek Belisko <marek@goldelico.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-01-13ARM: dts: cm-t3x: add NAND supportDmitry Lifshitz
CM-T3517, CM-T3530 and CM-T3730 features NAND storage chip connected to GPMC bus. Add GPMC DT entry into the root DT file omap3-cm-t3x.dtsi, common for all three modules. NAND timings are calculated to be safe for CM-T3x devices as it works now in non DT boot (in this case the timings are updated by U-Boot). Update GPMC ranges in boards DT files to include all connected devices. Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Acked-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-01-13ARM: at91/config: sama5: Remove DEBUG_LLMaxime Ripard
The sama5_defconfig can be used both on the sama5d3 and the sama5d4. Enabling DEBUG_LL is an issue though, since it will by default use the kernel addresses for the sama5d3 DBGU UART, that is located at a different address on the sama5d4. Remove this from the defconfig. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-13ARM: dts: add init dts file for CSR atlas7 SoCZhiwu Song
CSR atlas7 uses Network on Chip(NoC) bus architecture, there are dozens of MARCOs, in each MARCO, there are dozens of hardware modules. Signed-off-by: Zhiwu Song <Zhiwu.Song@csr.com> Signed-off-by: Hao Liu <Hao.Liu@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2015-01-13arm: macro whitespace fixesMichael S. Tsirkin
While working on arch/arm/include/asm/uaccess.h, I noticed that some macros within this header are made harder to read because they violate a coding style rule: space is missing after comma. Fix it up. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-01-13arm: fix put_user sparse errorsMichael S. Tsirkin
virtio wants to write bitwise types to userspace using put_user. At the moment this triggers sparse errors, since the value is passed through an integer. For example: __le32 __user *p; __le32 x; put_user(x, p); is safe, but currently triggers a sparse warning. Fix that up using __force. Note: this does not suppress any useful sparse checks since caller assigns x to typeof(*p), which in turn forces all the necessary type checks. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-01-13ARM: dts: vfxxx: Add SNVS nodeSanchayan Maity
Add device tree node for the Secure Non-Volatile Storage (SNVS) on the VF610 platform. The SNVS block also has a Real Time Counter (RTC). Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2015-01-13Merge branch 'imx/soc' into imx/dtShawn Guo
2015-01-13ARM: imx: clk-vf610: Add clock for SNVSSanchayan Maity
Add support for clock gating of the SNVS peripheral. Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>