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2014-12-16Merge tag 'for-v3.19' of git://git.infradead.org/battery-2.6Linus Torvalds
Pull power supply updates from Sebastian Reichel:: "Power supply and reset changes for the v3.19 series - update power/reset drivers to use kernel restart handler - add power off driver for i.mx6 - add DT support for gpio-charger" * tag 'for-v3.19' of git://git.infradead.org/battery-2.6: power: reset: adjust priority of simple syscon reboot driver power: ds2782_battery: Simplify the PM hooks power/reset: brcmstb: Register with kernel restart handler power/reset: hisi: Register with kernel restart handler power/reset: keystone: Register with kernel restart handler power/reset: axxia: Register with kernel restart handler power/reset: xgene: Register with kernel restart handler power/reset: xgene: Use mdelay instead of jiffies based timeout power/reset: xgene: Use local variable dev instead of pdev->dev power/reset: xgene: Drop devm_kfree power/reset: xgene: Return -ENOMEM if out of memory power/reset: vexpress: Register with kernel restart handler power: reset: imx-snvs-poweroff: add power off driver for i.mx6 power: gpio-charger: add device tree support dt-bindings: document gpio-charger bindings
2014-12-15Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
2014-12-09Merge tag 'soc-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform changes from Arnd Bergmann: "New and updated SoC support, notable changes include: - bcm: brcmstb SMP support initial iproc/cygnus support - exynos: Exynos4415 SoC support PMU and suspend support for Exynos5420 PMU support for Exynos3250 pm related maintenance - imx: new LS1021A SoC support vybrid 610 global timer support - integrator: convert to using multiplatform configuration - mediatek: earlyprintk support for mt8127/mt8135 - meson: meson8 soc and l2 cache controller support - mvebu: Armada 38x CPU hotplug support drop support for prerelease Armada 375 Z1 stepping extended suspend support, now works on Armada 370/XP - omap: hwmod related maintenance prcm cleanup - pxa: initial pxa27x DT handling - rockchip: SMP support for rk3288 add cpu frequency scaling support - shmobile: r8a7740 power domain support various small restart, timer, pci apmu changes - sunxi: Allwinner A80 (sun9i) earlyprintk support - ux500: power domain support Overall, a significant chunk of changes, coming mostly from the usual suspects: omap, shmobile, samsung and mvebu, all of which already contain a lot of platform specific code in arch/arm" * tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (187 commits) ARM: mvebu: use the cpufreq-dt platform_data for independent clocks soc: integrator: Add terminating entry for integrator_cm_match ARM: mvebu: add SDRAM controller description for Armada XP ARM: mvebu: adjust mbus controller description on Armada 370/XP ARM: mvebu: add suspend/resume DT information for Armada XP GP ARM: mvebu: synchronize secondary CPU clocks on resume ARM: mvebu: make sure MMU is disabled in armada_370_xp_cpu_resume ARM: mvebu: Armada XP GP specific suspend/resume code ARM: mvebu: reserve the first 10 KB of each memory bank for suspend/resume ARM: mvebu: implement suspend/resume support for Armada XP clk: mvebu: add suspend/resume for gatable clocks bus: mvebu-mbus: provide a mechanism to save SDRAM window configuration bus: mvebu-mbus: suspend/resume support clocksource: time-armada-370-xp: add suspend/resume support irqchip: armada-370-xp: Add suspend/resume support ARM: add lolevel debug support for asm9260 ARM: add mach-asm9260 ARM: EXYNOS: use u8 for val[] in struct exynos_pmu_conf power: reset: imx-snvs-poweroff: add power off driver for i.mx6 ARM: imx: temporarily remove CONFIG_SOC_FSL from LS1021A ...
2014-12-03power: reset: adjust priority of simple syscon reboot driverStefan Agner
Currently, all restart handler use the priority 128, including watchdogs. Probably most SoC have a watchdog, and some of them register it also as a restart handler. But if a SoC specifies a dedicated reboot capability using this syscon driver, this is usually the preferred reboot method. Hence, raise the priority of this driver to 192. Signed-off-by: Stefan Agner <stefan@agner.ch> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-11-23power: reset: imx-snvs-poweroff: add power off driver for i.mx6Robin Gong
This driver register pm_power_off with snvs power off function. If your boards NOT use PMIC_ON_REQ to turn on/off external pmic, or use other pin to do, please disable the driver in dts, otherwise, your pm_power_off maybe overwrote by this driver. Signed-off-by: Robin Gong <b38343@freescale.com> Acked-By: Sebastian Reichel <sre@kernel.org> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-11-17power/reset: brcmstb: Register with kernel restart handlerGuenter Roeck
Register with kernel restart handler instead of setting arm_pm_restart directly. Cc: Marc Carino <marc.ceeeee@gmail.com> Cc: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-11-17power/reset: hisi: Register with kernel restart handlerGuenter Roeck
Register with kernel restart handler instead of setting arm_pm_restart directly. Cc: Haojian Zhuang <haojian.zhuang@linaro.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-11-17power/reset: keystone: Register with kernel restart handlerGuenter Roeck
Register with kernel restart handler instead of setting arm_pm_restart directly. Move notifier registration to the end of the probe function to avoid having to implement error handling. Cc: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-11-17power/reset: axxia: Register with kernel restart handlerGuenter Roeck
Register with kernel restart handler instead of setting arm_pm_restart directly. Cc: Anders Berg <anders.berg@lsi.com> Tested-by: Anders Berg <anders.berg@avagotech.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-11-17power/reset: xgene: Register with kernel restart handlerGuenter Roeck
Register with kernel restart handler instead of setting arm_pm_restart directly. This patch also addresses the following compile warning. drivers/power/reset/xgene-reboot.c: In function 'xgene_reboot_probe': drivers/power/reset/xgene-reboot.c:77:17: warning: assignment from incompatible pointer type [enabled by default] The warning was due to a mismatch between the type of arm_pm_restart and the restart function. Cc: Loc Ho <lho@apm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-11-17power/reset: xgene: Use mdelay instead of jiffies based timeoutGuenter Roeck
jiffies are not running at this stage of system shutdown, meaning an error in the reset function would never be reported. Replace with mdelay(). Cc: Loc Ho <lho@apm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-11-17power/reset: xgene: Use local variable dev instead of pdev->devGuenter Roeck
Using a local variable dev to point to the device is simpler then repeatedly dereferencing pdev->dev. Cc: Loc Ho <lho@apm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-11-17power/reset: xgene: Drop devm_kfreeGuenter Roeck
Calling devm_kfree is unnecessary. Drop it. Cc: Loc Ho <lho@apm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-11-17power/reset: xgene: Return -ENOMEM if out of memoryGuenter Roeck
It is customary to return an error code of -ENOMEM if the system is out of memory. Also, in that case, the infrastructure will report an error, so it is unnecessary to report it again. Cc: Loc Ho <lho@apm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-11-17power/reset: vexpress: Register with kernel restart handlerGuenter Roeck
Use the kernel restart handler instead of setting arm_pm_restart directly. This allows for more than one restart handler in the system. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-11-17power: reset: imx-snvs-poweroff: add power off driver for i.mx6Robin Gong
This driver register pm_power_off with snvs power off function. If your boards NOT use PMIC_ON_REQ to turn on/off external pmic, or use other pin to do, please disable the driver in dts, otherwise, your pm_power_off maybe overwrote by this driver. Signed-off-by: Robin Gong <b38343@freescale.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-11-13ARM: at91: move sdramc/ddrsdr header to include/soc/at91Alexandre Belloni
Move the (DDR) SDRAM controller headers to include/soc/at91 to remove the dependency on mach/ headers from the at91-reset driver. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-11-04Merge branch 'platform/remove_owner' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next Remove all .owner fields from platform drivers
2014-10-22power: reset: at91-reset: fix power down registerAlexandre Belloni
In the case of at91sam9g45_restart(), the driver is writing AT91_DDRSDRC_LPCB_POWER_DOWN to AT91_DDRSDRC_RTR, this should actually be AT91_DDRSDRC_LPR. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Sebastian Reichel <sre@kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-10-20power: reset: drop owner assignment from platform_driversWolfram Sang
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-15Merge tag 'for-v3.18' of git://git.infradead.org/battery-2.6Linus Torvalds
Pull power supply and reset updates from Sebastian Reichel: - Initial support for the following chips * max77836 (charger) * max14577 (charger) * bq27742 (battery gauge) * ltc2952 (poweroff) * stih416 (restart) * syscon-reboot (restart) * gpio-restart (restart) - cleanup of power supply core - misc fixes in power supply and reset drivers * tag 'for-v3.18' of git://git.infradead.org/battery-2.6: (48 commits) power: ab8500_fg: Fix build warning Documentation: charger: max14577: Update the date of introducing ABI power: reset: corrections for simple syscon reboot driver Documentation: power: reset: Add documentation for generic SYSCON reboot driver power: reset: Add generic SYSCON register mapped reset bq27x00_battery: Fix flag reading for bq27742 power: reset: use restart_notifier mechanism for msm-poweroff power: Add simple gpio-restart driver power: reset: st: Provide DT bindings for ST's Power Reset driver power: reset: Add restart functionality for STiH41x platforms power: charger-manager: Fix NULL pointer exception with missing cm-fuel-gauge power: max14577: Fix circular config SYSFS dependency power: gpio-charger: do not use gpio value directly power: max8925: Use of_get_child_by_name power: max8925: Fix NULL ptr dereference on memory allocation failure bq27x00_battery: Add support to bq27742 Documentation: charger: max14577: Document exported sysfs entry devicetree: mfd: max14577: Add device tree bindings document power: max17040: Add ID for MAX77836 Fuel Gauge block charger: max14577: Configure battery-dependent settings from DTS and sysfs ... Conflicts: drivers/power/reset/Kconfig drivers/power/reset/Makefile
2014-10-10Merge tag 'restart-handler-for-v3.18' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull restart handler infrastructure from Guenter Roeck: "This series was supposed to be pulled through various trees using it, and I did not plan to send a separate pull request. As it turns out, the pinctrl tree did not merge with it, is now upstream, and uses it, meaning there are now build failures. Please pull this series directly to fix those build failures" * tag 'restart-handler-for-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: arm/arm64: unexport restart handlers watchdog: sunxi: register restart handler with kernel restart handler watchdog: alim7101: register restart handler with kernel restart handler watchdog: moxart: register restart handler with kernel restart handler arm: support restart through restart handler call chain arm64: support restart through restart handler call chain power/restart: call machine_restart instead of arm_pm_restart kernel: add support for kernel restart handler call chain
2014-10-03power: reset: corrections for simple syscon reboot driverFeng Kan
This patch is to fix some bugs in reboot driver. Which includes auto selection of the MFD_SYSCON for the driver, use of container to locate restart handler, correction of the count down failure timer and ordering of the header file. Signed-off-by: Feng Kan <fkan@apm.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> [ sre: return err instead of 0 in syscon_reboot_probe() ] Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-10-01power: reset: Add generic SYSCON register mapped resetFeng Kan
Add a generic SYSCON register mapped reset mechanism. Signed-off-by: Feng Kan <fkan@apm.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-26power: reset: use restart_notifier mechanism for msm-poweroffPramod Gurav
This change replaces use of arm_pm_restart with recently introduced reset mechanism in Linux kernel called restart_notifier. Choosing priority 128, which is default priority, as according to documentation, this mechanism is sufficient to restart the entire system. Cc: Guenter Roeck <linux@roeck-us.net> Cc: Josh Cartwright <joshc@codeaurora.org> Cc: Sebastian Reichel <sre@kernel.org> Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: linux-pm@vger.kernel.org Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-26power: Add simple gpio-restart driverDavid Riley
This driver registers a restart handler to set a GPIO line high/low to reset a board based on devicetree bindings. Signed-off-by: David Riley <davidriley@chromium.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-26Merge tag 'tags/restart-handler-for-v3.18' into nextSebastian Reichel
Immutable branch with restart handler patches for v3.18
2014-09-26power: reset: Add restart functionality for STiH41x platformsLee Jones
This driver adds the restart functionality for STiH415 and STiH416 platforms from STMicroelectronics. This driver registers an arm_pm_restart function to reset the platform. Signed-off-by: Christophe Kerello <christophe.kerello@st.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-26power/restart: call machine_restart instead of arm_pm_restartGuenter Roeck
machine_restart is supported on non-ARM platforms, and and ultimately calls arm_pm_restart, so dont call arm_pm_restart directly but use the more generic function. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jonas Jensen <jonas.jensen@gmail.com> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Tomasz Figa <t.figa@samsung.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Wim Van Sebroeck <wim@iguana.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2014-09-25power: reset: driver for the Versatile syscon rebootLinus Walleij
This driver enabled us to drive the reboot of the Versatile family of ARM reference boards. Even though only the RealView boards are supported initially, these boards all have the same procedure for reboot: - Write a magic value into an unlocking register - Write another magic value into a reset control register The driver will be reusable for Versatile and possibly also the Integrator family of reference boards. Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Acked-By: Sebastian Reichel <sre@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-09-16power: reset: add LTC2952 poweroff driverRené Moll
This adds a driver for the LTC2952, an external power control chip, which signals the OS to shut down. Additionally this driver lets the kernel power down the board. Signed-off-by: René Moll <rene.moll@xsens.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-06power/reset: xgene-reset: Fix prototype of xgene_restart()Mark Brown
The xgene-reset driver uses xgene_restart() as arm_pm_restart() but that function should take an enum reset_type as the first argument rather than a char. Fix this; the paramter is not referenced in the implementation. Signed-off-by: Mark Brown <broonie@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-01power: reset: at91-poweroff: fix wakeup status register indexNicolas Ferre
The wakeup status is read from Shutdown Status Register and not the SHDW_CR which is the one at address 0. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-09-01ARM: at91/power/reset: fix Kconfig "depends on" directiveNicolas Ferre
MACH_AT91 doesn't exist so we can't "depend" on it. Fix the typo by using the proper ARCH_AT91 config option. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-08-25Merge tag 'at91-drivers-for-3.17' of ↵Nicolas Ferre
git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux Pull AT91 reset, poweroff and ram drivers from Maxime Ripard: "This tag holds the various new drivers introduced to move code that used to be in mach-at91 over to the proper frameworks. These files are the reboot and poweroff code for all AT91 SoCs but the RM9200, and the ram controller driver is not doing much at the time, except for grabing the RAM clock in order to leave it always enabled." Conflicts: arch/arm/mach-at91/Kconfig
2014-08-08Merge tag 'soc-for-3.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform changes from Olof Johansson: "This is the bulk of new SoC enablement and other platform changes for 3.17: - Samsung S5PV210 has been converted to DT and multiplatform - Clock drivers and bindings for some of the lower-end i.MX 1/2 platforms - Kirkwood, one of the popular Marvell platforms, is folded into the mvebu platform code, removing mach-kirkwood - Hwmod data for TI AM43xx and DRA7 platforms - More additions of Renesas shmobile platform support - Removal of plat-samsung contents that can be removed with S5PV210 being multiplatform/DT-enabled and the other two old platforms being removed New platforms (most with only basic support right now): - Hisilicon X5HD2 settop box chipset is introduced - Mediatek MT6589 (mobile chipset) is introduced - Broadcom BCM7xxx settop box chipset is introduced + as usual a lot other pieces all over the platform code" * tag 'soc-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (240 commits) ARM: hisi: remove smp from machine descriptor power: reset: move hisilicon reboot code ARM: dts: Add hix5hd2-dkb dts file. ARM: debug: Rename Hi3716 to HIX5HD2 ARM: hisi: enable hix5hd2 SoC ARM: hisi: add ARCH_HISI MAINTAINERS: add entry for Broadcom ARM STB architecture ARM: brcmstb: select GISB arbiter and interrupt drivers ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs ARM: configs: enable SMP in bcm_defconfig ARM: add SMP support for Broadcom mobile SoCs Documentation: arm: misc updates to Marvell EBU SoC status Documentation: arm: add URLs to public datasheets for the Marvell Armada XP SoC ARM: mvebu: fix build without platforms selected ARM: mvebu: add cpuidle support for Armada 38x ARM: mvebu: add cpuidle support for Armada 370 cpuidle: mvebu: add Armada 38x support cpuidle: mvebu: add Armada 370 support cpuidle: mvebu: rename the driver from armada-370-xp to mvebu-v7 ARM: mvebu: export the SCU address ...
2014-07-31power: reset: move hisilicon reboot codeHaojian Zhuang
Move reboot code from hisilicon platform driver into reset driver. Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Acked-by: Wei Xu <xuwei5@hisilicon.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-23power: reset: Add reboot driver for brcmstbMarc Carino
Add support for reboot functionality on boards with ARM-based Broadcom STB chipsets. Make it built-in by default for ARCH_BRCMSTB, but allow it to be configurable under COMPILE_TEST. Signed-off-by: Marc Carino <marc.ceeeee@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-18power/reset: Fix GPL v2 license string typoBjorn Helgaas
Per license_is_gpl_compatible(), the MODULE_LICENSE() string for GPL v2 is "GPL v2", not "GPLv2". Use "GPL v2" so this module doesn't taint the kernel. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-18power: poweroff: gpio: convert to use descriptorsLinus Walleij
This switches the GPIO poweroff driver to use GPIO descriptors rather than numeral GPIOs. We get rid of the specific inversion handling as GPIO descriptors know if they are active low or high and can assert the line properly, so we do not need to check the flag OF_GPIO_ACTIVE_LOW returned from the old call of_get_gpio_flags() anymore. Also convert to use managed resources and use dev_* message printing while we're at it. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-15power: reset: Add AT91 poweroff driverMaxime Ripard
Add a driver to handle the shutdown of the Atmel SoCs. This code used to be (and still is) in arch/arm/mach-at91. We didn't remove it yet so that we can convert all the boards to using this driver, before removing it entirely in a separate patch. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2014-07-15power: reset: Add AT91 reset driverMaxime Ripard
Implement the reset behaviour of the various AT91 SoCS in drivers/power/reset. It used to be (and still is) located in arch/arm/mach-at91, and in order to preserve bisectability is not removed yet, but every board should be converted to use this driver instead. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2014-07-15power: reset: Add if statement instead of multiple depends onMaxime Ripard
All the config option so far are depending on the POWER_RESET symbol Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2014-06-02Merge tag 'drivers-for-3.16' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into next Pull ARM SoC driver changes from Olof Johansson: "SoC-near driver changes that we're merging through our tree. Mostly because they depend on other changes we have staged, but in some cases because the driver maintainers preferred that we did it this way. This contains a largeish cleanup series of the omap_l3_noc bus driver, cpuidle rework for Exynos, some reset driver conversions and a long branch of TI EDMA fixes and cleanups, with more to come next release. The TI EDMA cleanups is a shared branch with the dmaengine tree, with a handful of Davinci-specific fixes on top. After discussion at last year's KS (and some more on the mailing lists), we are here adding a drivers/soc directory. The purpose of this is to keep per-vendor shared code that's needed by different drivers but that doesn't fit into the MFD (nor drivers/platform) model. We expect to keep merging contents for this hierarchy through arm-soc so we can keep an eye on what the vendors keep adding here and not making it a free-for-all to shove in crazy stuff" * tag 'drivers-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (101 commits) cpufreq: exynos: Fix driver compilation with ARCH_MULTIPLATFORM tty: serial: msm: Remove direct access to GSBI power: reset: keystone-reset: introduce keystone reset driver Documentation: dt: add bindings for keystone pll control controller Documentation: dt: add bindings for keystone reset driver soc: qcom: fix of_device_id table ARM: EXYNOS: Fix kernel panic when unplugging CPU1 on exynos ARM: EXYNOS: Move the driver to drivers/cpuidle directory ARM: EXYNOS: Cleanup all unneeded headers from cpuidle.c ARM: EXYNOS: Pass the AFTR callback to the platform_data ARM: EXYNOS: Move S5P_CHECK_SLEEP into pm.c ARM: EXYNOS: Move the power sequence call in the cpu_pm notifier ARM: EXYNOS: Move the AFTR state function into pm.c ARM: EXYNOS: Encapsulate the AFTR code into a function ARM: EXYNOS: Disable cpuidle for exynos5440 ARM: EXYNOS: Encapsulate boot vector code into a function for cpuidle ARM: EXYNOS: Pass wakeup mask parameter to function for cpuidle ARM: EXYNOS: Remove ifdef for scu_enable in pm ARM: EXYNOS: Move scu_enable in the cpu_pm notifier ARM: EXYNOS: Use the cpu_pm notifier for pm ...
2014-06-02Merge tag 'soc-for-3.16' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into next Pull part one of ARM SoC updates from Olof Johansson: "A quite large set of SoC updates this cycle. In no particular order: - Multi-cluster power management for Samsung Exynos, adding support for big.LITTLE CPU switching on EXYNOS5 - SMP support for Marvell Armada 375 and 38x - SMP rework on Allwinner A31 - Xilinx Zynq support for SOC_BUS, big endian - Marvell orion5x platform cleanup, modernizing the implementation and moving to DT. - _Finally_ moving Samsung Exynos over to support MULTIPLATFORM, so that their platform can be enabled in the same kernel binary as most of the other v7 platforms in the tree. \o/ The work isn't quite complete, there's some driver fixes still needed, but the basics now work. New SoC support added: - Freescale i.MX6SX - LSI Axxia AXM55xx SoCs - Samsung EXYNOS 3250, 5260, 5410, 5420 and 5800 - STi STIH407 plus a large set of various smaller updates for different platforms. I'm probably missing some important one here" * tag 'soc-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (281 commits) ARM: exynos: don't run exynos4 l2x0 setup on other platforms ARM: exynos: Fix "allmodconfig" build errors in mcpm and hotplug ARM: EXYNOS: mcpm rename the power_down_finish ARM: EXYNOS: Enable mcpm for dual-cluster exynos5800 SoC ARM: EXYNOS: Enable multi-platform build support ARM: EXYNOS: Consolidate Kconfig entries ARM: EXYNOS: Add support for EXYNOS5410 SoC ARM: EXYNOS: Support secondary CPU boot of Exynos3250 ARM: EXYNOS: Add Exynos3250 SoC ID ARM: EXYNOS: Add 5800 SoC support ARM: EXYNOS: initial board support for exynos5260 SoC clk: exynos5410: register clocks using common clock framework ARM: debug: qcom: add UART addresses to Kconfig help for APQ8084 ARM: sunxi: allow building without reset controller Documentation: devicetree: arm: sort enable-method entries ARM: rockchip: convert smp bringup to CPU_METHOD_OF_DECLARE clk: exynos5250: Add missing sysmmu clocks for DISP and ISP blocks ARM: dts: axxia: Add reset controller power: reset: Add Axxia system reset driver ARM: axxia: Adding defconfig for AXM55xx ...
2014-05-27Merge tag 'keystone-reset-driver' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into next/drivers Merge "Keystone Reset driver for 3.16" from Santosh Shilimkar: * tag 'keystone-reset-driver' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone: power: reset: keystone-reset: introduce keystone reset driver Documentation: dt: add bindings for keystone pll control controller Documentation: dt: add bindings for keystone reset driver Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-27power: reset: keystone-reset: introduce keystone reset driverIvan Khoronzhuk
The keystone SoC can be rebooted in several ways. By external reset pin, by soft and by watchdogs. To allow keystone SoC reset if watchdog is triggered we have to enable it in reset mux configuration register regarding of watchdog configuration. Also we need to set soft/hard reset we are going to use. So add keystone reset driver to handle all this stuff. Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-23Merge tag 'sunxi-drivers-for-3.16-2' of https://github.com/mripard/linux ↵Arnd Bergmann
into next/drivers Allwinner drivers changes for 3.16, take 2 Add reset driver for the A31 * tag 'sunxi-drivers-for-3.16-2' of https://github.com/mripard/linux: power: reset: Add Allwinner A31 reset code Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-05-23Merge branch 'axxia/soc' into next/socArnd Bergmann
Patches from Anders Berg applied individually: Here is version 4 of platform support for AXM5516 SoC. The clk driver is now applied to clk-next. The rest should be ready for arm-soc. Haven't got any response from the power/reset maintainers... I hope this driver can be taken via arm-soc as well. The AXM55xx family consists of devices that may contain up to 16 ARM Cortex-A15 cores (in a 4x4 cluster configuration). The cores within each cluster share an L2 cache, and the clusters are connected to each other via a CCN-504 cache coherent interconnect. This machine requires CONFIG_ARM_LPAE enabled as all peripherals are located above 4GB in the memory map. * axxia/soc: ARM: dts: axxia: Add reset controller power: reset: Add Axxia system reset driver ARM: axxia: Adding defconfig for AXM55xx ARM: dts: Device tree for AXM55xx. ARM: Add platform support for LSI AXM55xx SoC Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-05-23power: reset: Add Axxia system reset driverAnders Berg
Add Axxia (AXM55xx) SoC system reset driver. This driver handles only system reboot (and not power-off). Signed-off-by: Anders Berg <anders.berg@lsi.com> Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>