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| * | ARM: imx6: disable deeper idle states when FEC is active w/o HW workaroundLucas Stach2016-06-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The i.MX6 Q/DL has an erratum (ERR006687) that prevents the FEC from waking the CPUs when they are in wait(unclocked) state. As the hardware workaround isn't applicable to all boards, disable the deeper idle state when the workaround isn't present and the FEC is in use. This allows to safely run a kernel with CPUidle enabled on all i.MX6 boards. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: David S. Miller <davem@davemloft.net> (for network changes) Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| * | ARM: mach-imx6q: fix spelling mistake in error messageJean Guyomarc'h2016-06-10
| | | | | | | | | | | | | | | | | | | | | | | | The compatible device tree node that is searched for is imx6q-iomuxc-gpr but was misspelled imx6q-iomux-gpr in the error handling message. Signed-off-by: Jean Guyomarc'h <jean.guyomarch@openwide.fr> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* | | Merge tag 'armsoc-cleanup' of ↵Linus Torvalds2016-08-01
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanups from Olof Johansson: "The cleanup branch keeps going down in size as we've completed a lot of the major legacy platform removals and conversions. A handful of changes this time around, some of the themes or larger sets are: - A bunch of i.MX cleanups around platform detection, init call cleanups - Misc fixes of missing/implicit includes - Removal of ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB" * tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (40 commits) ARM: mps2: fix typo ARM: s3c64xx: avoid warning about 'struct device_node' bus: mvebu-mbus: make mvebu_mbus_syscore_ops static bus: mvebu-mbus: fix __iomem on register pointers ARM: tegra: Remove board_init_funcs array ARM: iop: Fix indentation ARM: imx: remove cpu_is_mx*() ARM: imx: remove last call to cpu_is_mx5* ARM: imx: rework mx27_pm_init() call ARM: imx: deconstruct mx3_idle ARM: imx: deconstruct mxc_rnga initialization ARM: imx: remove cpu_is_mx1 check ARM: i.MX: Do not explicitly call l2x0_of_init() ARM: i.MX: system.c: Tweak prefetch settings for performance ARM: i.MX: system.c: Replace magic numbers ARM: i.MX: system.c: Remove redundant errata 752271 code ARM: i.MX: system.c: Convert goto to if statement ARM: Kirkwood: fix kirkwood_pm_init() declaration/type ARM: Kirkwood: make kirkwood_disable_mbus_error_propagation() static ARM: orion5x: make orion5x_legacy_handle_irq static ...
| * \ \ Merge tag 'imx-cleanup-4.8' of ↵Olof Johansson2016-07-05
| |\ \ \ | | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/cleanup The i.MX cleanup for 4.8: - A series from Arnd to clean up cpu_is_mx*() from i.MX platform - A series from Andrey to clean up i.MX L2-cache code by using core support as much as possible - Remove the orphan header eukrea-baseboards.h from i.MX platform - Remove boilerplate code from TZIC driver by using IRQCHIP_DECLARE * tag 'imx-cleanup-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: imx: remove cpu_is_mx*() ARM: imx: remove last call to cpu_is_mx5* ARM: imx: rework mx27_pm_init() call ARM: imx: deconstruct mx3_idle ARM: imx: deconstruct mxc_rnga initialization ARM: imx: remove cpu_is_mx1 check ARM: i.MX: Do not explicitly call l2x0_of_init() ARM: i.MX: system.c: Tweak prefetch settings for performance ARM: i.MX: system.c: Replace magic numbers ARM: i.MX: system.c: Remove redundant errata 752271 code ARM: i.MX: system.c: Convert goto to if statement ARM: imx: Use IRQCHIP_DECLARE for TZIC ARM: imx: Remove orphan header Signed-off-by: Olof Johansson <olof@lixom.net>
| | * | ARM: imx: remove cpu_is_mx*()Arnd Bergmann2016-06-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mxc_cpu_type and cpu_is_mx() logic is largely unused, and the few remaining users were easy to convert into simpler code. Now that they are gone, we can remove all those macros as well. The related cpu_is_imx6*() set of function unfortunately is harder to remove, so those are staying around for now. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * | ARM: imx: remove last call to cpu_is_mx5*Arnd Bergmann2016-06-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The check for cpu_is_mx51/cpu_is_mx53() in mx51_revision()/mx53_revision() is just a safety precaution, but there are only two callers of this are using it only on the correct CPUs, and none of the other respective functions have this extra check. Removing these lets us kill off the cpu_is_* functions. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * | ARM: imx: rework mx27_pm_init() callArnd Bergmann2016-06-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mx27_pm_init() uses its own initcall, unlike all of the other functions like it. Replacing the initcall with a .init_late() callback makes imx27 more like the others and lets us remove the last caller of cpu_is_mx27(). Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * | ARM: imx: deconstruct mx3_idleArnd Bergmann2016-06-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The imx31 and imx35 idle functions are almost the same, but we currently have to check the cpu type every time. This can be simplified by moving the logic from mx3_cpu_lp_set() into two separate idle functions, removing the last user of cpu_is_mx35. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * | ARM: imx: deconstruct mxc_rnga initializationArnd Bergmann2016-06-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The rnga platform device is initialized for all imx31 machines from its own initcall, but is never initialized anywhere else. This moves the platform device creation into both the imx31 dt and non-dt machine init sequences, which has basically the exact same effect as before, but makes it more obvious what is going on, while reducing the amount of code and removing the last user of cpu_is_mx31(). Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * | ARM: imx: remove cpu_is_mx1 checkArnd Bergmann2016-06-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is only one call site for this, and it's easily replaced by initializing the reset value at boot time. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * | ARM: i.MX: Do not explicitly call l2x0_of_init()Andrey Smirnov2016-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's no need to explicitly call l2x0_of_init() since it will be called as a part of init_IRQ() (see arch/arm/kernel/irq.c for details). This way we can simplify imx_init_l2cache() and ditch the call to it on i.MX35 (which does not claim compatibility with "arm,pl310-cache") alltogether. Acked-by: Arnd Bergmann <arnd@arndb.de> Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * | ARM: i.MX: system.c: Tweak prefetch settings for performanceAndrey Smirnov2016-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update Prefetch Control Register settings to match that of Freescale's Linux tree. As the commit e3addf1b773964eac7f797e8538c69481be4279c states (author Nitin Garg): "... set Prefetch offset to 15, since it improves memcpy performance by 35%. Don't enable Incr double Linefill enable since it adversely affects memcpy performance by about 32MB/s and reads by 90MB/s. Tested with 4K to 16MB sized src and dst aligned buffer..." Those results are also corroborated by our own testing. Acked-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Chris Healy <cphealy@gmail.com> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * | ARM: i.MX: system.c: Replace magic numbersAndrey Smirnov2016-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace magic numbers used to form L310 Prefetch Control Register value. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * | ARM: i.MX: system.c: Remove redundant errata 752271 codeAndrey Smirnov2016-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Applying a fix for ARM errata 752271 would already be taken care by a call to a 'fixup' hook as a part of l2x0_of_init() -> __l2c_init() call chain. Moreso the code in 'fixup' function would do that based on the PL310's revsion information, whereas removed code does so based on SoC version which does not work very well on i.MX6Q+ which identifies itself as i.MX6Q as well but is not affected by 752271. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * | ARM: i.MX: system.c: Convert goto to if statementAndrey Smirnov2016-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using goto here doesn't bring any advantages and only makes the code flow less clear. No functional changes. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * | ARM: imx: Use IRQCHIP_DECLARE for TZICAlexander Shiyan2016-06-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove boilerplate code by using IRQCHIP_DECLARE macro. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * | ARM: imx: Remove orphan headerAlexander Shiyan2016-06-12
| | |/ | | | | | | | | | | | | | | | | | | The header eukrea-baseboards.h is not used, remove it. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| * / ARM: do away with ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIBLinus Walleij2016-06-03
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This replaces: - "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB" as this can now be selected directly. - "select ARCH_WANT_OPTIONAL_GPIOLIB" with no dependency: GPIOLIB is now selectable by everyone, so we need not declare our intent to select it. When ordering the symbols the following rationale was used: if the selects were in alphabetical order, I moved select GPIOLIB to be in alphabetical order, but if the selects were not maintained in alphabetical order, I just replaced "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB". Cc: Michael Büsch <m@bues.ch> Cc: arm@kernel.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
* | Merge tag 'devicetree-for-4.8' of ↵Linus Torvalds2016-07-30
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree updates from Rob Herring: - remove most of_platform_populate() calls in arch code. Now the DT core code calls it in the default case and platforms only need to call it if they have special needs - use pr_fmt on all the DT core print statements - CoreSight binding doc improvements to block name descriptions - add dt_to_config script which can parse dts files and list corresponding kernel config options - fix memory leak hit with a PowerMac DT - correct a bunch of STMicro compatible strings to use the correct vendor prefix - fix DA9052 PMIC binding doc to match what is actually used in dts files * tag 'devicetree-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (35 commits) documentation: da9052: Update regulator bindings names to match DA9052/53 DTS expectations xtensa: Partially Revert "xtensa: Remove unnecessary of_platform_populate with default match table" xtensa: Fix build error due to missing include file MIPS: ath79: Add missing include file Fix spelling errors in Documentation/devicetree ARM: dts: fix STMicroelectronics compatible strings powerpc/dts: fix STMicroelectronics compatible strings Documentation: dt: i2c: use correct STMicroelectronics vendor prefix scripts/dtc: dt_to_config - kernel config options for a devicetree of: fdt: mark unflattened tree as detached of: overlay: add resolver error prints coresight: document binding acronyms Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties of: use pr_fmt prefix for all console printing of/irq: Mark initialised interrupt controllers as populated of: fix memory leak related to safe_name() Revert "of/platform: export of_default_bus_match_table" of: unittest: use of_platform_default_populate() to populate default bus memory: omap-gpmc: use of_platform_default_populate() to populate default bus bus: uniphier-system-bus: use of_platform_default_populate() to populate default bus ...
| * | arm: use of_platform_default_populate() to populateKefeng Wang2016-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use helper of_platform_default_populate() in linux/of_platform when possible, instead of calling of_platform_populate() with the default match table. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Krzysztof Halasa <khalasa@piap.pl> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Roland Stigge <stigge@antcom.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Ray Jui <rjui@broadcom.com> Cc: Viresh Kumar <vireshk@kernel.org> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Rob Herring <robh@kernel.org> Cc: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Rob Herring <robh@kernel.org>
| * | arm: Remove unnecessary of_platform_populate with default match tableKefeng Wang2016-06-23
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After patch "of/platform: Add common method to populate default bus", it is possible for arch code to remove unnecessary callers of of_platform_populate with default match table. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Lee Jones <lee@kernel.org> Cc: Krzysztof Halasa <khalasa@piap.pl> Cc: Kukjin Kim <kgene@kernel.org> Cc: Rob Herring <robh@kernel.org> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Santosh Shilimkar <ssantosh@kernel.org> Cc: Roland Stigge <stigge@antcom.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Viresh Kumar <vireshk@kernel.org> Cc: Shiraz Hashim <shiraz.linux.kernel@gmail.com> Cc: Tony Prisk <linux@prisktech.co.nz> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Rob Herring <robh@kernel.org>
* / ARM: imx6ul: Fix Micrel PHY maskFabio Estevam2016-06-09
|/ | | | | | | | | | | | | | The value used for Micrel PHY mask is not correct. Use the MICREL_PHY_ID_MASK definition instead. Thanks to Jiri Luznicky for proposing the fix at https://community.freescale.com/thread/387739 Cc: <stable@vger.kernel.org> Fixes: 709bc0657fe6f9f55 ("ARM: imx6ul: add fec MAC refrence clock and phy fixup init") Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* Merge tag 'armsoc-soc' of ↵Linus Torvalds2016-05-18
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Arnd Bergmann: "We get support for three new 32-bit SoC platforms this time. The amount of changes in arch/arm for any of them is miniscule, as all the interesting code is in device driver subsystems (irqchip, clk, pinctrl, ...) these days. I'm listing them here, as the addition of the Kconfig statement is the main relevant milestone for a new platform. In each case, some drivers are are shared with existing platforms, while other drivers are added for v4.7 as well, or come in a later release. - The Aspeed platform is probably the most interesting one, this is what most whitebox servers use as their baseboard management controller. We get support for the very common ast2400 and ast2500 SoCs. The OpenBMC project focuses on this chip, and the LWN article about their ELC 2016 presentation at https://lwn.net/Articles/683320/ triggered the submission, but the code comes from IBM's OpenPOWER team rather than the team at Facebook. There are still a lot more drivers that need to get added over time, and I hope both teams can work together on that. - OXNAS is an old platform for Network Attached Storage devices from Oxford Semiconductor. There are models with ARM10 (!) and ARM11MPCore cores, but for now, we only support the original ARM9 based versions. The product lineup was subsequently part of PLX, Avago and now the new Broadcom Ltd. https://wiki.openwrt.org/doc/hardware/soc/soc.oxnas has some more information. - V2M-MPS2 is a prototyping platform from ARM for their Cortex-M cores and is related to the existing Realview / Versatile Express lineup, but without MMU. We now support various NOMMU platforms, so adding a new one is fairly straightforward. http://infocenter.arm.com/help/topic/com.arm.doc.100112_0100_03_en/ has detailed information about the platform. Other noteworthy updates: - Work on LPC32xx has resumed, and Vladimir Zapolskiy and Sylvain Lemieux are now maintaining the platform. This is an older ARM9 based platform from NXP (not Freescale), but it remains in use in embedded markets. - Kevin Hilman is now co-maintaining the Amlogic Meson platform for both 32-bit and 64-bit ARM, and started contributing some patches. - As is often the case, work on the OMAP platforms makes up the bulk of the actual SoC code changes in arch/arm, but there isn't a lot of that either" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits) MAINTAINERS: ARM/Amlogic: add co-maintainer, misc. updates MAINTAINERS: add ARM/NXP LPC32XX SoC specific drivers to the section MAINTAINERS: add new maintainers of NXP LPC32xx SoC MAINTAINERS: move ARM/NXP LPC32xx record to ARM section arm: Add Aspeed machine ARM: lpc32xx: remove duplicate const on lpc32xx_auxdata_lookup ARM: lpc32xx: remove leftovers of legacy clock source and provider drivers ARM: lpc32xx: remove reboot header file ARM: dove: Remove CLK_IS_ROOT ARM: orion5x: Remove CLK_IS_ROOT ARM: mv78xx0: Remove CLK_IS_ROOT ARM: davinci: da850: use clk->set_parent for async3 ARM: davinci: Move clock init after ioremap. MAINTAINERS: Update ARM Versatile Express platform entry ARM: vexpress/mps2: introduce MPS2 platform MAINTAINERS: add maintainer entry for ARM/OXNAS platform ARM: Add new mach-oxnas irqchip: versatile-fpga: add new compatible for OX810SE SoC ARM: uniphier: correct the call order of of_node_put() MAINTAINERS: fix stale TI DaVinci entries ...
| * ARM: imx: always use TWD on IMX6QSebastian Andrzej Siewior2016-04-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no reason to limit the TWD to be used on SMP kernels only if the hardware has it available. On Wandboard i.MX6SOLO, running PREEMPT-RT and cyclictest I see as max immediately after start in idle: UP : ~90us SMP: ~50us UP + TWD: ~20us. Based on this numbers I prefer the TWD over the slightly slower MXC timer. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* | Merge branch 'pm-cpufreq'Rafael J. Wysocki2016-05-16
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * pm-cpufreq: (63 commits) intel_pstate: Clean up get_target_pstate_use_performance() intel_pstate: Use sample.core_avg_perf in get_avg_pstate() intel_pstate: Clarify average performance computation intel_pstate: Avoid unnecessary synchronize_sched() during initialization cpufreq: schedutil: Make default depend on CONFIG_SMP cpufreq: powernv: del_timer_sync when global and local pstate are equal cpufreq: powernv: Move smp_call_function_any() out of irq safe block intel_pstate: Clean up intel_pstate_get() cpufreq: schedutil: Make it depend on CONFIG_SMP cpufreq: governor: Fix handling of special cases in dbs_update() cpufreq: intel_pstate: Ignore _PPC processing under HWP cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table cpufreq: tango: Use generic platdev driver cpufreq: Fix GOV_LIMITS handling for the userspace governor cpufreq: mvebu: Move cpufreq code into drivers/cpufreq/ cpufreq: dt: Kill platform-data mvebu: Use dev_pm_opp_set_sharing_cpus() to mark OPP tables as shared cpufreq: dt: Identify cpu-sharing for platforms without operating-points-v2 cpufreq: governor: Change confusing struct field and variable names cpufreq: intel_pstate: Enable PPC enforcement for servers ...
| * | cpufreq: imx: Use generic platdev driverViresh Kumar2016-04-25
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq-dt-platdev driver supports creation of cpufreq-dt platform device now, reuse that and remove similar code from platform code. Note that the complete routine imx27_dt_init() is removed as of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); has same effect as a NULL .init_machine machine callback pointer. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* / ARM: mach-imx: sdhci-esdhc-imx: initialize DMA maskAlexander Kurz2016-04-13
|/ | | | | | | | | | With commit 7b91369b4655 ("mmc: sdhci: Set DMA mask when adding host") DMA access got disabled for device drivers with zero DMA mask property. sdhci-esdhc-imx got blocked from DMA access by this. Hence: initialize the DMA mask to enable access again. Signed-off-by: Alexander Kurz <akurz@blala.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* Merge tag 'armsoc-soc' of ↵Linus Torvalds2016-03-20
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Arnd Bergmann: "Newly added support for additional SoCs: - Axis Artpec-6 SoC family - Allwinner A83T SoC - Mediatek MT7623 - NXP i.MX6QP SoC - ST Microelectronics stm32f469 microcontroller New features: - SMP support for Mediatek mt2701 - Big-endian support for NXP i.MX - DaVinci now uses the new DMA engine dma_slave_map - OMAP now uses the new DMA engine dma_slave_map - earlyprintk support for palmchip uart on mach-tango - delay timer support for orion Other: - Exynos PMU driver moved out to drivers/soc/ - Various smaller updates for Renesas, Xilinx, PXA, AT91, OMAP, uniphier" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits) ARM: uniphier: rework SMP code to support new System Bus binding ARM: uniphier: add missing of_node_put() ARM: at91: avoid defining CONFIG_* symbols in source code ARM: DRA7: hwmod: Add data for eDMA tpcc, tptc0, tptc1 ARM: imx: Make reset_control_ops const ARM: imx: Do L2 errata only if the L2 cache isn't enabled ARM: imx: select ARM_CPU_SUSPEND only for imx6 dmaengine: pxa_dma: fix the maximum requestor line ARM: alpine: select the Alpine MSI controller driver ARM: pxa: add the number of DMA requestor lines dmaengine: mmp-pdma: add number of requestors dma: mmp_pdma: Add the #dma-requests DT property documentation ARM: OMAP2+: Add rtc hwmod configuration for ti81xx ARM: s3c24xx: Avoid warning for inb/outb ARM: zynq: Move early printk virtual address to vmalloc area ARM: DRA7: hwmod: Add custom reset handler for PCIeSS ARM: SAMSUNG: Remove unused register offset definition ARM: EXYNOS: Cleanup header files inclusion drivers: soc: samsung: Enable COMPILE_TEST MAINTAINERS: Add maintainers entry for drivers/soc/samsung ...
| * ARM: imx: Make reset_control_ops constPhilipp Zabel2016-02-28
| | | | | | | | | | | | | | The imx_src_ops structure is never modified. Make it const. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| * ARM: imx: Do L2 errata only if the L2 cache isn't enabledDirk Behme2016-02-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All the generic L2 cache handling code is encapsulated by a check if the L2 cache is enabled. If it's enabled already, the code is skipped. The write to the L2-Cache controller from non-secure world causes an imprecise external abort. This is needed in scenarios where one of the cores runs an other OS, e.g. an RTOS. For the i.MX6 specific L2 cache handling we missed this check. Add it. Signed-off-by: Marcel Grosshans <MarcelViktor.Grosshans@de.bosch.com> Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| * ARM: imx: select ARM_CPU_SUSPEND only for imx6Arnd Bergmann2016-02-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | i.MX only needs to select ARM_CPU_SUSPEND manually for the very specific case that CONFIG_PM_SLEEP is disabled and imx6 is used with CONFIG_PM enabled for runtime PM. If we are building a kernel only for CPUs that are not using the cpu_suspend() helper, we otherwise get a harmless build warning: warning: (ARCH_MXC && SOC_IMX23 && SOC_IMX28 && ARCH_PXA && MACH_MVEBU_V7 && 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) This moves the option to the SOC_IMX6 option that actually requires it, in effect reverting commit f36b594f3754 ("ARM: mach-imx: Select ARM_CPU_SUSPEND at ARCH_MXC level") that was meant as a cleanup and unintentionally caused this warning. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| * ARM: mx25: Add basic suspend/resume supportFabio Estevam2016-02-13
| | | | | | | | | | | | | | | | | | | | | | | | Tested basic suspend/resume on a mx25pdk: $ echo enabled > /sys/class/tty/ttymxc0/power/wakeup $ echo mem > /sys/power/state Then press any key in the serial console and the system wakes up. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| * ARM: imx: Add msl code support for imx6qpBai Ping2016-02-13
| | | | | | | | | | | | | | | | | | | | The i.MX6QP is a different SOC, but internally we treate it as i.MX6Q Rev_2.0 to maximum the code reusability. The chip silicon number we read from the ANADIG_DIGPROG is 0x630100. This patch add code to identify it as i.MX6QP Rev_1.0 when print out the silicon version. Signed-off-by: Bai Ping <ping.bai@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| * ARM: imx: enable big endian modeJohannes Berg2016-02-02
| | | | | | | | | | | | | | | | | | | | | | | | | | Enable ARM big-endian mode on mach-imx. This requires adding some byte swapping in the debug functions (which otherwise hang forever) and of course the secondary core bringup. Tested (on top of 4.4) on i.MX6 HummingBoard quad-core (IMX6Q). The patch is pretty much as suggested by Arnd Bergmann, thanks! Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| * ARM: imx: use endian-safe readl/readw/writel/writewJohannes Berg2016-02-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of __raw_*, define imx_* to *_relaxed and use those. Using imx_* was requested by Arnd because *_relaxed tends to indicate that the code was carefully reviewed to not require any synchronisation and otherwise be safe, which isn't the case here with the automatic conversion. The conversion itself was done using the following spatch (since that automatically adjusts the coding style unlike a simple search&replace). @@ expression E1, E2; @@ -__raw_writel(E1, E2) +imx_writel(E1, E2) @@ expression E1, E2; @@ -__raw_writew(E1, E2) +imx_writew(E1, E2) @@ expression E1; @@ -__raw_readl(E1) +imx_readl(E1) @@ expression E1; @@ -__raw_readw(E1) +imx_readw(E1) Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| * ARM: imx7d: correct chip version informationFrank Li2016-01-28
| | | | | | | | | | | | | | | | | | | | | | The commond 'cat /sys/devices/soc0/revision' can show correct soc version information. "unknow revision" message in imx_print_silicon_rev() will never work for digprog. Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| * ARM: imx: select HAVE_ARM_ARCH_TIMER if selected i.MX7DFrank Li2016-01-28
| | | | | | | | | | | | | | i.MX7D Supported ARCH Timer. Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| * ARM: imx6: fix cleanup path in imx6q_suspend_init()Jean-Christophe Dubois2016-01-28
| | | | | | | | | | | | | | | | The wrong pointer is passed to the ioumap function in the cleanup path Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* | Merge tag 'gpio-v4.6-1' of ↵Linus Torvalds2016-03-18
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO changes for kernel v4.6. There is quite a lot of interesting stuff going on. The patches to other subsystems and arch-wide are ACKed as far as possible, though I consider things like per-arch <asm/gpio.h> as essentially a part of the GPIO subsystem so it should not be needed. Core changes: - The gpio_chip is now a *real device*. Until now the gpio chips were just piggybacking the parent device or (gasp) floating in space outside of the device model. We now finally make GPIO chips devices. The gpio_chip will create a gpio_device which contains a struct device, and this gpio_device struct is kept private. Anything that needs to be kept private from the rest of the kernel will gradually be moved over to the gpio_device. - As a result of making the gpio_device a real device, we have added resource management, so devm_gpiochip_add_data() will cut down on overhead and reduce code lines. A huge slew of patches convert almost all drivers in the subsystem to use this. - Building on making the GPIO a real device, we add the first step of a new userspace ABI: the GPIO character device. We take small steps here, so we first add a pure *information* ABI and the tool "lsgpio" that will list all GPIO devices on the system and all lines on these devices. We can now discover GPIOs properly from userspace. We still have not come up with a way to actually *use* GPIOs from userspace. - To encourage people to use the character device for the future, we have it always-enabled when using GPIO. The old sysfs ABI is still opt-in (and can be used in parallel), but is marked as deprecated. We will keep it around for the foreseeable future, but it will not be extended to cover ever more use cases. Cleanup: - Bjorn Helgaas removed a whole slew of per-architecture <asm/gpio.h> includes. This dates back to when GPIO was an opt-in feature and no shared library even existed: just a header file with proper prototypes was provided and all semantics were up to the arch to implement. These patches make the GPIO chip even more a proper device and cleans out leftovers of the old in-kernel API here and there. Still some cruft is left but it's very little now. - There is still some clamping of return values for .get() going on, but we now return sane values in the vast majority of drivers and the errorpath is sanitized. Some patches for powerpc, blackfin and unicore still drop in. - We continue to switch the ARM, MIPS, blackfin, m68k local GPIO implementations to use gpiochip_add_data() and cut down on code lines. - MPC8xxx is converted to use the generic GPIO helpers. - ATH79 is converted to use the generic GPIO helpers. New drivers: - WinSystems WS16C48 - Acces 104-DIO-48E - F81866 (a F7188x variant) - Qoric (a MPC8xxx variant) - TS-4800 - SPI serializers (pisosr): simple 74xx shift registers connected to SPI to obtain a dirt-cheap output-only GPIO expander. - Texas Instruments TPIC2810 - Texas Instruments TPS65218 - Texas Instruments TPS65912 - X-Gene (ARM64) standby GPIO controller" * tag 'gpio-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (194 commits) Revert "Share upstreaming patches" gpio: mcp23s08: Fix clearing of interrupt. gpiolib: Fix comment referring to gpio_*() in gpiod_*() gpio: pca953x: Fix pca953x_gpio_set_multiple() on 64-bit gpio: xgene: Fix kconfig for standby GIPO contoller gpio: Add generic serializer DT binding gpio: uapi: use 0xB4 as ioctl() major gpio: tps65912: fix bad merge Revert "gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free" gpio: omap: drop dev field from gpio_bank structure gpio: mpc8xxx: Slightly update the code for better readability gpio: mpc8xxx: Remove *read_reg and *write_reg from struct mpc8xxx_gpio_chip gpio: mpc8xxx: Fixup setting gpio direction output gpio: mcp23s08: Add support for mcp23s18 dt-bindings: gpio: altera: Fix altr,interrupt-type property gpio: add driver for MEN 16Z127 GPIO controller gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free gpio: timberdale: Switch to devm_ioremap_resource() gpio: ts4800: Add IMX51 dependency gpiolib: rewrite gpiodev_add_to_list ...
| * | ARM: imx: switch to gpiochip_add_data()Linus Walleij2016-02-19
| |/ | | | | | | | | | | | | | | | | We're planning to remove the gpiochip_add() function to swith to gpiochip_add_data() with NULL for data argument. Cc: arm@kernel.org Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* / ARM: imx6: pm: declare pm domain latency on power_state structAxel Haslam2016-02-15
|/ | | | | | | | | | | | | | | The generic_pm_domain structure uses an array of latencies to be able to declare multiple intermediate states. Declare a single "OFF" state with the default latencies So that the power_off_latency_ns and power_on_latency_ns fields of generic_pm_domain structure can be eventually removed. [ Lina: pm_genpd_init() argument changev ] Signed-off-by: Lina Iyer <lina.iyer@linaro.org> Signed-off-by: Axel Haslam <ahaslam+renesas@baylibre.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* Merge tag 'armsoc-soc' of ↵Linus Torvalds2016-01-20
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Olof Johansson: "Updates for new platform support: - New platform: Tango4 from Sigma Designs. - Broadcom BCM2836 (Raspberry Pi 2 SoC) - Enable cpufreq on Freescale i.MX7D - Rockchip: SMP support for rk3036, general support for rk3228 - SMP support on Broadcom Kona and NSP - Cleanups for OMAP removing legacy IOMMU data + a bunch of misc fixes and tweaks for various platforms" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (46 commits) ARM: tango: Fix UP build issues ARM: tango: pass ARM arch level for smc.S ARM: bcm2835: Add Kconfig support for bcm2836 ARM: OMAP2+: Add support for dm814x and dra62x usb ARM: OMAP2+: Add mmc hwmod entries for dm814x ARM: OMAP2+: Update 81xx clock and power domains for default, active and sgx ARM: OMAP2+: Fix SoC detection for dra62x j5-eco ARM: tango4: Initial platform support ARM: bcm2835: Add a compat string for bcm2836 machine probe dt-bindings: Add root properties for Raspberry Pi 2 ARM: imx: select SRC for i.MX7 ARM: uniphier: select PINCTRL ARM: OMAP2+: Remove device creation for omap-pcm-audio ARM: OMAP1: Remove device creation for omap-pcm-audio ARM: rockchip: enable support for RK3228 SoCs ARM: rockchip: use const and __initconst for rk3036 smp_operations ARM: zynq: Select ARCH_HAS_RESET_CONTROLLER ARM: BCM: Add SMP support for Broadcom 4708 ARM: BCM: Add SMP support for Broadcom NSP ARM: BCM: Clean up SMP support for Broadcom Kona ...
| * Merge tag 'imx-soc-4.5' of ↵Olof Johansson2015-12-22
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc The i.MX SoC updates for 4.5: - Select HAVE_IMX_SRC for i.MX7 to avoid a randconfig build error - Enable cpufreq support on i.MX7D - A couple of random cleanup on iomux-imx31 and mach-imx6ul * tag 'imx-soc-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: imx: select SRC for i.MX7 ARM: mach-imx: iomux-imx31: fix spelling mistake in error message ARM: imx: enable cpufreq device on i.mx7d mach-imx/mach-imx6ul.c: proper constness with __initconst Signed-off-by: Olof Johansson <olof@lixom.net>
| | * ARM: imx: select SRC for i.MX7Arnd Bergmann2015-12-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The i.MX7 Kconfig option had a couple of missing select lines that I fixed already, but I missed HAVE_IMX_SRC: arch/arm/mach-imx/built-in.o: In function `imx7d_init_irq': platform-spi_imx.c:(.init.text+0x25a8): undefined reference to `imx_src_init' This adds that one as well. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 0be5da9dc249 ("ARM: imx: imx7d requires anatop") Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * ARM: mach-imx: iomux-imx31: fix spelling mistake in error messageColin Ian King2015-12-02
| | | | | | | | | | | | | | | | | | | | | Minor issue, fix spelling mistake, nonexistant -> nonexistent Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * ARM: imx: enable cpufreq device on i.mx7dBai Ping2015-12-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add a cpufreq-dt device on i.MX7D, using the generic cpufreq-dt for CPU frequency scaling. Signed-off-by: Bai Ping <b51503@freescale.com> Acked-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * mach-imx/mach-imx6ul.c: proper constness with __initconstNicolas Pitre2015-11-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | Both the pointer array and the pointed data have to be const when using __initconst to be correct. This also fixes LTO builds that otherwise fail with section mismatch errors. Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
* | | Merge tag 'armsoc-cleanup' of ↵Linus Torvalds2016-01-20
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanups from Olof Johansson: "A smallish number of general cleanup commits this release cycle. Some of these are minor tweaks: - shmobile change of binding for their GIC (using arm,pl390 now) - ARCH_RENESAS introduction - Misc other renesas updates There's also a couple of treewide commits from Masahiro Yamada cleaning up const/__initconst for SMP operation structs and a switch to using "depends on" instead of if-constructs on most of the Kconfig platform targets" * tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: staging: board: armadillo800eva: Use "arm,pl390" staging: board: kzm9d: Use "arm,pl390" ARM: shmobile: r8a7778 dtsi: Use "arm,pl390" for GIC ARM: shmobile: emev2 dtsi: Use "arm,pl390" for GIC ARM: shmobile: r8a7740 dtsi: Use "arm,pl390" for GIC ARM: shmobile: r7s72100 dtsi: Use "arm,pl390" for GIC ARM: use "depends on" for SoC configs instead of "if" after prompt ARM/clocksource: use automatic DT probing for ux500 PRCMU ARM: use const and __initconst for smp_operations ARM: hisi: do not export smp_operations structures ARM: mvebu: remove unused mach/gpio.h ARM: shmobile: Remove legacy mach/irqs.h ARM: shmobile: Introduce ARCH_RENESAS MAINTAINERS: Remove link to oss.renesas.com which is closed
| * \ \ Merge tag 'arm-soc/for-4.5/cleanup' of git://git.infradead.org/linux-mtd ↵Arnd Bergmann2015-12-15
| |\ \ \ | | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into next/cleanup Merge "MTD/NAND cleanups for v4.5" from Brian Norris: Two changes for NAND/MTD refactoring. The mtd_to_nand() helper will allow us to stop using mtd->priv for NAND drivers. * tag 'arm-soc/for-4.5/cleanup' of git://git.infradead.org/linux-mtd: ARM: nand: make use of mtd_to_nand() where appropriate mtd: nand: add an mtd_to_nand() helper
| * | | ARM: use "depends on" for SoC configs instead of "if" after promptMasahiro Yamada2015-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many ARM sub-architectures use prompts followed by "if" conditional, but it is wrong. Please notice the difference between config ARCH_FOO bool "Foo SoCs" if ARCH_MULTI_V7 and config ARCH_FOO bool "Foo SoCs" depends on ARCH_MULTI_V7 These two are *not* equivalent! In the former statement, it is not ARCH_FOO, but its prompt that depends on ARCH_MULTI_V7. So, it is completely valid that ARCH_FOO is selected by another, but ARCH_MULTI_V7 is still disabled. As it is not unmet dependency, Kconfig never warns. This is probably not what you want. The former should be used only when you need to do so, and you really understand what you are doing. (In most cases, it should be wrong!) For enabling/disabling sub-architectures, the latter is always correct. As a good side effect, this commit fixes some entries over 80 columns (mach-imx, mach-integrator, mach-mbevu). [Arnd: I note that there is not really a bug here, according to the discussion that followed, but I can see value in being consistent and in making the lines shorter] Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Jun Nie <jun.nie@linaro.org> Acked-by: Matthias Brugger <matthias.bgg@gmail.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Krzysztof Halasa <khc@piap.pl> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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