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2014-10-14Merge tag 'samsung-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixesOlof Johansson2-2/+4
Merge "Samsung fixes for v3.18" from Kukjin Kim: - fix ifdef around cpu_*_do_[suspend, resume] ops to check CONFIG_ARM_CPU_SUSPEND and not CONFIG_PM_SLEEP - fix exynos_defconfig build with PM_SLEEP=n and ARM_EXYNOS_CPUIDLE=n - fix enabling Samsung PM debug functionality due to recently merged patches and previous merge conflicts - fix pull-up setting in sd4_width8 pin group for exynos4x12 * tag 'samsung-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: mm: Fix ifdef around cpu_*_do_[suspend, resume] ops ARM: EXYNOS: Fix build with PM_SLEEP=n and ARM_EXYNOS_CPUIDLE=n ARM: SAMSUNG: Restore Samsung PM Debug functionality ARM: dts: Fix pull setting in sd4_width8 pin group for exynos4x12 Signed-off-by: Olof Johansson <olof@lixom.net>
2014-10-02kbuild: remove unnecessary variable initializaionsMasahiro Yamada1-4/+0
Clearing obj-y, obj-m, obj-n, obj- in each Makefile is a useless habit. They are non-exported variables; therefore they are always empty whenever descending into each subdirectory. (Moreorver, obj-y and obj-m are also set to empty at the beginning of scripts/Makefile.build) Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Peter Foley <pefoley2@pefoley.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-10-02kbuild: remove unnecessary "obj- := dummy.o" trickMasahiro Yamada1-1/+0
In these Makefiles, at least one of "obj-y" and "obj-" is non-empty, hence built-in.o is always created without such a trick. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Peter Foley <pefoley2@pefoley.com> Acked-by: Mike Turquette <mturquette@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> [shmobile] Acked-by: David S. Miller <davem@davemloft.net> [networking] Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-09-24ARM: SAMSUNG: Restore Samsung PM Debug functionalityTomasz Figa2-2/+4
Due to recently merged patches and previous merge conflicts, the Samsung PM Debug functionality no longer can be enabled. This patch fixes incorrect dependency of SAMSUNG_PM_DEBUG on an integer symbol and adds missing header inclusion. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-26Merge branch 'cleanup/gpio-header-removal' into next/socArnd Bergmann3-18/+3
* cleanup/gpio-header-removal: ARM: delete old reference to ARM_GPIOLIB_COMPLEX ARM: kill CONFIG_NEED_MACH_GPIO_H ARM: mach-s5p: get rid of all <mach/gpio.h> headers ARM: s5p: cut the custom ARCH_NR_GPIOS definition This resolves a massive amount of conflicts between the mach/gpio.h removal and the s5p platform removal. Almost all changes are trivial, as both sides remove stuff. Conflicts: arch/arm/Kconfig arch/arm/mach-s5p64x0/common.c arch/arm/mach-s5p64x0/dev-audio.c arch/arm/mach-s5p64x0/include/mach/gpio-samsung.h arch/arm/mach-s5p64x0/mach-smdk6440.c arch/arm/mach-s5p64x0/mach-smdk6450.c arch/arm/mach-s5p64x0/setup-fb-24bpp.c arch/arm/mach-s5p64x0/setup-i2c0.c arch/arm/mach-s5p64x0/setup-i2c1.c arch/arm/mach-s5p64x0/setup-sdhci-gpio.c arch/arm/mach-s5p64x0/setup-spi.c arch/arm/mach-s5pc100/dev-audio.c arch/arm/mach-s5pc100/include/mach/gpio-samsung.h arch/arm/mach-s5pc100/mach-smdkc100.c arch/arm/mach-s5pc100/setup-fb-24bpp.c arch/arm/mach-s5pc100/setup-i2c0.c arch/arm/mach-s5pc100/setup-i2c1.c arch/arm/mach-s5pc100/setup-ide.c arch/arm/mach-s5pc100/setup-keypad.c arch/arm/mach-s5pc100/setup-sdhci-gpio.c arch/arm/mach-s5pc100/setup-spi.c arch/arm/mach-s5pv210/dev-audio.c arch/arm/mach-s5pv210/include/mach/gpio-samsung.h arch/arm/mach-s5pv210/mach-aquila.c arch/arm/mach-s5pv210/mach-goni.c arch/arm/mach-s5pv210/mach-smdkv210.c arch/arm/mach-s5pv210/setup-fb-24bpp.c arch/arm/mach-s5pv210/setup-fimc.c arch/arm/mach-s5pv210/setup-i2c0.c arch/arm/mach-s5pv210/setup-i2c1.c arch/arm/mach-s5pv210/setup-i2c2.c arch/arm/mach-s5pv210/setup-ide.c arch/arm/mach-s5pv210/setup-keypad.c arch/arm/mach-s5pv210/setup-sdhci-gpio.c arch/arm/mach-s5pv210/setup-spi.c arch/arm/plat-samsung/Kconfig arch/arm/plat-samsung/s5p-irq-eint.c Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-07-26Merge tag 's5pv210-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/socArnd Bergmann34-3418/+14
Merge "Samsung S5PV210 DT support for v3.17" from Kukjin Kim: - support common clock framework for s5pv210 clock - add generic PHY driver on s5pv210 to support it via DT - add dt support for s5pv210-goni, smdkc110, smdkv210 and torbreck boards - remove board files from mach-s5pv210 and unused codes - enable multiplatform for s5pv210 * tag 's5pv210-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: clk: samsung: s5pv210: Remove legacy board support ARM: SAMSUNG: Remove remaining legacy code gpio: samsung: Remove legacy support of S5PV210 ARM: S5PV210: Enable multi-platform build support cpufreq: s5pv210: Make the driver multiplatform aware ARM: S5PV210: Register cpufreq platform device ARM: S5PV210: move debug-macro.S into the common space ARM: S5PV210: Untie PM support from legacy code ARM: S5PV210: Remove support for board files ARM: dts: Add Device tree for s5pc110/s5pv210 boards ARM: dts: Add Device tree for s5pv210 SoC ARM: S5PV210: Add board file for boot using Device Tree phy: Add support for S5PV210 to the Exynos USB 2.0 PHY driver clk: samsung: Add S5PV210 Audio Subsystem clock driver ARM: SAMSUNG: Remove legacy clock code serial: samsung: Remove support for legacy clock code cpufreq: s3c24xx: Remove some dead code ARM: S5PV210: Migrate clock handling to Common Clock Framework clk: samsung: Add clock driver for S5PV210 and compatible SoCs Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-07-26Merge tag 'power-exynos' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/socArnd Bergmann1-1/+0
Merge "Samsung power management related updates for v3.17" from Kukjin Kim - support cluster power off on exynos5420 and exynos5800 to save power. - use PMU address via DT to remove PMU static mapping - remove exynos_cpuidle_init() and exynos_cpufreq_init() * Note that this is including tags/samsung-cleanup and tags/exynos-cpuidle are already merged into arm-soc. * tag 'power-exynos' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: Move cpufreq and cpuidle device registration to init_machine ARM: EXYNOS: Refactored code for using PMU address via DT ARM: EXYNOS: Support cluster power off on exynos5420/5800 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-07-23ARM: EXYNOS: Refactored code for using PMU address via DTPankaj Dubey1-1/+0
Under "arm/mach-exynos" many files are using PMU register offsets. Since we have added support for accessing PMU base address via DT, now we can remove PMU mapping from exynosX_iodesc. Let's convert all these access using iomapped address. This will help us in removing static mapping of PMU base address as well as help in reducing dependency over machine header files. Thus helping for migration of PMU implementation from machine to driver folder which can be reused for ARM64 based SoC. Also as we have removed static mappings from "regs-pmu.h" it does not need map.h anymore. But "platsmp.c" needed this and till now it got included indirectly. So lets move header inclusion of "mach/map.h" from "regs-pmu.h" to "platsmp.c". Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-19ARM: SAMSUNG: Remove remaining legacy codeTomasz Figa25-1720/+13
After refactoring suspend/resume, which was last part with dependencies on legacy code, all Kconfig symbols related to Samsung ATAGS support can be deselected and more unused code removed. This includes most of s5p-* code as well, as s5pv210 was their last user. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-19ARM: S5PV210: Enable multi-platform build supportTomasz Figa2-2/+1
This makes it possible to enable the s5pv210 platform as part of a multiplatform kernel. Also redundant Kconfig options are removed. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-19ARM: S5PV210: Remove support for board filesTomasz Figa1-1/+0
Since all in-tree boards have been moved to device tree, we can now drop legacy code and make mach-s5pv210 DT-only. This patch does it. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-19ARM: SAMSUNG: Remove legacy clock codeTomasz Figa11-1695/+0
Since S5PV210 now has a complete clock driver using Common Clock Framework, there is no reason to keep the old code. Remove it together with the whole legacy Samsung-specific clock framework which no longer has any users. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-19ARM: S5PV210: Migrate clock handling to Common Clock FrameworkMateusz Krawczuk1-1/+1
This patch migrates the s5pv210 platform to use new clock driver using Common Clock Framework. Signed-off-by: Mateusz Krawczuk <m.krawczuk@partner.samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> [t.figa: Rebased and fixed merge conflicts.] Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-13ARM: S5PC100: no more support S5PC100 SoCKukjin Kim7-66/+7
This patch removes supporting codes for s5pc100 because no more used now. [jason@lakedaemon.net: for drivers/irqchip/Kconfig] Acked-by: Jason Cooper <jason@lakedaemon.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-08ARM: S5P64X0: no more support S5P6440 and S5P6450 SoCsKukjin Kim6-87/+7
This patch removes supporting codes for s5p6440 and s5p6450 because seems no more used now. And if its supporting is required, DT based codes should be supprted next time. Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-06-30ARM: mach-s5p: get rid of all <mach/gpio.h> headersLinus Walleij3-3/+4
This renames all the local <mach/gpio.h> headers in the S5P platforms to <mach/gpio-samsung.h> indicating a scope local to this platform, and cuts the implicit inclusion of <mach/gpio.h> from <linux/gpio.h> by removing the use of NEED_MACH_GPIO_H from all S5P variants. Acked-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-06-30ARM: s5p: cut the custom ARCH_NR_GPIOS definitionLinus Walleij1-16/+0
The number of GPIOs defined for the different S5P platforms using the tricky #define macros are actually as follows: S5P64x0: 180 GPIOs S5PC100: 115 GPIOs S5PV210: 252 GPIOs The include file <asm-generic/gpio.h> will automatically bump us to 256 GPIOs which is a nice default value that happens to encompass all the S5P platform requirements under its roof. Cut ARCH_NR_GPIOS and the custom spacing macro for extra GPIOs that is not used anywhere in the kernel. Acked-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-06-19Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-20/+8
Pull ARM SoC fixes from Arnd Bergmann: "A first set of bug fixes that didn't make it for the merge window, and two Kconfig cleanups that still make sense at this point. Unfortunately, one of the two cleanups caused an unintended change in the original version, so we had to revert one part of it and do some more testing to ensure the rest is really fine. There was also a last-minute rebase of the patches to remove another bad commit" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: use menuconfig for sub-arch menus ARM: multi_v7_defconfig: re-enable SDHCI drivers ARM: EXYNOS: Fix compilation warning ARM: exynos: move sysram info to exynos.c ARM: dts: Specify the NAND ECC scheme explicitly on Armada 385 DB board ARM: dts: Specify the NAND ECC scheme explicitly on Armada 375 DB board ARM: exynos: cleanup kconfig option display misc: vexpress: fix error handling vexpress_syscfg_regmap_init() ARM: Remove ARCH_HAS_CPUFREQ config option ARM: integrator: fix section mismatch problem ARM: mvebu: DT: fix OpenBlocks AX3-4 RAM size ARM: samsung: make SAMSUNG_DMADEV optional remoteproc: da8xx: don't select CMA on no-MMU bus/arm-cci: add dependency on OF && CPU_V7 ARM: keystone requires ARM_PATCH_PHYS_VIRT ARM: omap2: fix am43xx dependency on l2x0 cache
2014-06-17ARM: exynos: cleanup kconfig option displayRob Herring1-14/+3
The addition of Exynos to multi-platform configs creates a mess of config options with options appearing before the Exynos config option. This is due to arch/arm/plat-samsung/Kconfig being included out of order with the other Samsung platform kconfig files. Reorder the kconfig files and move all the options into a sub-menu. Some of the options are dead, so remove those as well. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: linux-samsung-soc@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-06-17ARM: samsung: make SAMSUNG_DMADEV optionalArnd Bergmann1-6/+5
The only remaining driver using the samsung dmadev code is the broken samsung-ac97 sound driver. However, as found by Russell's autobuilder, the elaborate dependency chains around it cause problems with circular dependencies. This is an attempt to simplify those dependencies by making the SAMSUNG_DMADEV option user-selectable. I also try to keep the default settings for all related options unchanged, so we don't introduce any regressions against earlier testing on linux-next. In particular, all s3c64xx and s5p* platforms keep selecting the pl330 and pl08x drivers they require, but the select statement is now moved towards the main platform option, and it remains optional by unselecting CONFIG_DMADEVICES. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Kukjin Kim <kgene.kim@samsung.com>
2014-06-11Merge tag 'pwm/for-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwmLinus Torvalds1-2/+0
Pull pwm changes from Thierry Reding: "The majority of these changes are cleanups and fixes across all drivers. Redundant error messages are removed and more PWM controllers set the .can_sleep flag to signal that they can't be used in atomic context. Support is added for the Broadcom Kona family of SoCs and the Intel LPSS driver can now probe PCI devices in addition to ACPI devices. Upon shutdown, the pwm-backlight driver will now power off the backlight. It also uses the new descriptor-based GPIO API for more concise GPIO handling. A large chunk of these changes also converts platforms to use the lookup mechanism rather than relying on the global number space to reference PWM devices. This is largely in preparation for more unification and cleanups in future patches. Eventually it will allow the legacy PWM API to be removed" * tag 'pwm/for-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (38 commits) pwm: fsl-ftm: set pwm_chip can_sleep flag pwm: ab8500: Fix wrong value shift for disable/enable PWM pwm: samsung: do not set manual update bit in pwm_samsung_config pwm: lp3943: Set pwm_chip can_sleep flag pwm: atmel: set pwm_chip can_sleep flag pwm: mxs: set pwm_chip can_sleep flag pwm: tiehrpwm: inline accessor functions pwm: tiehrpwm: don't build PM related functions when not needed pwm-backlight: retrieve configured PWM period leds: leds-pwm: retrieve configured PWM period ARM: pxa: hx4700: use PWM_LOOKUP to initialize struct pwm_lookup ARM: shmobile: armadillo: use PWM_LOOKUP to initialize struct pwm_lookup ARM: OMAP3: Beagle: use PWM_LOOKUP to initialize struct pwm_lookup pwm: modify PWM_LOOKUP to initialize all struct pwm_lookup members ARM: pxa: hx4700: initialize all the struct pwm_lookup members ARM: OMAP3: Beagle: initialize all the struct pwm_lookup members pwm: renesas-tpu: remove unused struct tpu_pwm_platform_data ARM: shmobile: armadillo: initialize all struct pwm_lookup members pwm: add period and polarity to struct pwm_lookup pwm: twl: Really disable twl6030 PWMs ...
2014-06-05Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into nextLinus Torvalds1-1/+0
Pull ARM updates from Russell King: - Major clean-up of the L2 cache support code. The existing mess was becoming rather unmaintainable through all the additions that others have done over time. This turns it into a much nicer structure, and implements a few performance improvements as well. - Clean up some of the CP15 control register tweaks for alignment support, moving some code and data into alignment.c - DMA properties for ARM, from Santosh and reviewed by DT people. This adds DT properties to specify bus translations we can't discover automatically, and to indicate whether devices are coherent. - Hibernation support for ARM - Make ftrace work with read-only text in modules - add suspend support for PJ4B CPUs - rework interrupt masking for undefined instruction handling, which allows us to enable interrupts earlier in the handling of these exceptions. - support for big endian page tables - fix stacktrace support to exclude stacktrace functions from the trace, and add save_stack_trace_regs() implementation so that kprobes can record stack traces. - Add support for the Cortex-A17 CPU. - Remove last vestiges of ARM710 support. - Removal of ARM "meminfo" structure, finally converting us solely to memblock to handle the early memory initialisation. * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (142 commits) ARM: ensure C page table setup code follows assembly code (part II) ARM: ensure C page table setup code follows assembly code ARM: consolidate last remaining open-coded alignment trap enable ARM: remove global cr_no_alignment ARM: remove CPU_CP15 conditional from alignment.c ARM: remove unused adjust_cr() function ARM: move "noalign" command line option to alignment.c ARM: provide common method to clear bits in CPU control register ARM: 8025/1: Get rid of meminfo ARM: 8060/1: mm: allow sub-architectures to override PCI I/O memory type ARM: 8066/1: correction for ARM patch 8031/2 ARM: 8049/1: ftrace/add save_stack_trace_regs() implementation ARM: 8065/1: remove last use of CONFIG_CPU_ARM710 ARM: 8062/1: Modify ldrt fixup handler to re-execute the userspace instruction ARM: 8047/1: rwsem: use asm-generic rwsem implementation ARM: l2c: trial at enabling some Cortex-A9 optimisations ARM: l2c: add warnings for stuff modifying aux_ctrl register values ARM: l2c: print a warning with L2C-310 caches if the cache size is modified ARM: l2c: remove old .set_debug method ARM: l2c: kill L2X0_AUX_CTRL_MASK before anyone else makes use of this ...
2014-06-04Merge tag 'devicetree-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux into nextLinus Torvalds1-2/+2
Pull DeviceTree updates from Rob Herring: - Another round of clean-up of FDT related code in architecture code. This removes knowledge of internal FDT details from most architectures except powerpc. - Conversion of kernel's custom FDT parsing code to use libfdt. - DT based initialization for generic serial earlycon. The introduction of generic serial earlycon support went in through the tty tree. - Improve the platform device naming for DT probed devices to ensure unique naming and use parent names instead of a global index. - Fix a race condition in of_update_property. - Unify the various linker section OF match tables and fix several function prototype errors. - Update platform_get_irq_byname to work in deferred probe cases. - 2 binding doc updates * tag 'devicetree-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (58 commits) of: handle NULL node in next_child iterators of/irq: provide more wrappers for !CONFIG_OF devicetree: bindings: Document micrel vendor prefix dt: bindings: dwc2: fix required value for the phy-names property of_pci_irq: kill useless variable in of_irq_parse_pci() of/irq: do irq resolution in platform_get_irq_byname() of: Add a testcase for of_find_node_by_path() of: Make of_find_node_by_path() handle /aliases of: Create unlocked version of for_each_child_of_node() lib: add glibc style strchrnul() variant of: Handle memory@0 node on PPC32 only pci/of: Remove dead code of: fix race between search and remove in of_update_property() of: Use NULL for pointers of: Stop naming platform_device using dcr address of: Ensure unique names without sacrificing determinism tty/serial: pl011: add DT based earlycon support of/fdt: add FDT serial scanning for earlycon of/fdt: add FDT address translation support serial: earlycon: add DT support ...
2014-05-31ARM: EXYNOS: Enable multi-platform build supportArnd Bergmann1-0/+3
This makes it possible to enable the Exynos platform as part of a multiplatform kernel. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-30ARM: l2c: exynos: convert to common l2c310 early resume functionalityRussell King1-1/+0
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-26ARM: EXYNOS: Migrate Exynos specific macros from plat to machSachin Kamat1-60/+0
Move Exynos specific macros to mach-exynos from plat-samsung to avoid unnecessary dependency on plat based header files. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26ARM: EXYNOS: Remove exynos_subsys registrationSachin Kamat1-1/+0
'exynos_subsys' has no users. Remove this code. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-09ARM: S3C24XX: cpufreq-utils: don't write raw values to MPLLCON when using ccfHeiko Stuebner1-0/+1
The s3c24xx cpufreq driver needs to change the mpll speed and was doing this by writing raw values from a translation table into the MPLLCON register. Change this to use a regular clk_set_rate call when using the common clock framework and only write the raw value in the samsung_clock case. The s3c cpufreq driver does already aquire the mpll, so simply add a reference to struct s3c_cpufreq_config to let set_fvco access it. While struct clk is opaque the differenciation between samsung clock and common clock is kept, as the samsung-clock mpll clk does not implement a real set_rate. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-07ARM: SAMSUNG: remove GPIO flags in dev-backlightAlexandre Courbot1-2/+0
The pwm-backlight driver is moving to use the gpiod interface, which has its own mapping mechanism for platform data GPIOs. These mappings carry GPIO properties like active low so they don't have to be explicitly handled by GPIO consumers. Because of this change, the enable_gpio_flags member of platform_pwm_backlight_data is going away. dev-backlight was passing this member, but had no user making use of it, so it can safely be removed. Further GPIOs used by pwm-backlight are expected to be defined using the mechanisms provided by the gpiod API. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2014-04-30of/fdt: update of_get_flat_dt_prop in prep for libfdtRob Herring1-2/+2
Make of_get_flat_dt_prop arguments compatible with libfdt fdt_getprop call in preparation to convert FDT code to use libfdt. Make the return value const and the property length ptr type an int. Signed-off-by: Rob Herring <robh@kernel.org> Tested-by: Michal Simek <michal.simek@xilinx.com> Tested-by: Grant Likely <grant.likely@linaro.org> Tested-by: Stephen Chivers <schivers@csc.com>
2014-04-07Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAPUwe Kleine-König1-2/+2
If the renamed symbol is defined lib/iomap.c implements ioport_map and ioport_unmap and currently (nearly) all platforms define the port accessor functions outb/inb and friend unconditionally. So HAS_IOPORT_MAP is the better name for this. Consequently NO_IOPORT is renamed to NO_IOPORT_MAP. The motivation for this change is to reintroduce a symbol HAS_IOPORT that signals if outb/int et al are available. I will address that at least one merge window later though to keep surprises to a minimum and catch new introductions of (HAS|NO)_IOPORT. The changes in this commit were done using: $ git grep -l -E '(NO|HAS)_IOPORT' | xargs perl -p -i -e 's/\b((?:CONFIG_)?(?:NO|HAS)_IOPORT)\b/$1_MAP/' Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-05Merge tag 'tags/cleanup2-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds16-458/+307
Pull ARM SoC late cleanups from Arnd Bergmann: "These could not be part of the first cleanup branch, because they either came too late in the cycle, or they have dependencies on other branches. Important changes are: - The integrator platform is almost multiplatform capable after some reorganization (Linus Walleij) - Minor cleanups on Zynq (Michal Simek) - Lots of changes for Exynos and other Samsung platforms, including further preparations for multiplatform support and the clocks bindings are rearranged" * tag 'tags/cleanup2-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits) devicetree: fix newly added exynos sata bindings ARM: EXYNOS: Fix compilation error in cpuidle.c ARM: S5P64X0: Explicitly include linux/serial_s3c.h in mach/pm-core.h ARM: EXYNOS: Remove hardware.h file ARM: SAMSUNG: Remove hardware.h inclusion ARM: S3C24XX: Remove invalid code from hardware.h dt-bindings: clock: Move exynos-audss-clk.h to dt-bindings/clock ARM: dts: Keep some essential LDOs enabled for arndale-octa board ARM: dts: Disable MDMA1 node for arndale-octa board ARM: S3C64XX: Fix build for implicit serial_s3c.h inclusion serial: s3c: Fix build of header without serial_core.h preinclusion ARM: EXYNOS: Allow wake-up using GIC interrupts ARM: EXYNOS: Stop using legacy Samsung PM code ARM: EXYNOS: Remove PM initcalls and useless indirection ARM: EXYNOS: Fix abuse of CONFIG_PM ARM: SAMSUNG: Move s3c_pm_check_* prototypes to plat/pm-common.h ARM: SAMSUNG: Move common save/restore helpers to separate file ARM: SAMSUNG: Move Samsung PM debug code into separate file ARM: SAMSUNG: Consolidate PM debug functions ARM: SAMSUNG: Use debug_ll_addr() to get UART base address ...
2014-04-05Merge tag 'cleanup-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds11-67/+9
Pull ARM SoC cleanups from Arnd Bergmann: "These cleanup patches are mainly move stuff around and should all be harmless. They are mainly split out so that other branches can be based on top to avoid conflicts. Notable changes are: - We finally remove all mach/timex.h, after CLOCK_TICK_RATE is no longer used (Uwe Kleine-König) - The Qualcomm MSM platform is split out into legacy mach-msm and new-style mach-qcom, to allow easier maintainance of the new hardware support without regressions (Kumar Gala) - A rework of some of the Kconfig logic to simplify multiplatform support (Rob Herring) - Samsung Exynos gets closer to supporting multiplatform (Sachin Kamat and others) - mach-bcm3528 gets merged into mach-bcm (Stephen Warren) - at91 gains some common clock framework support (Alexandre Belloni, Jean-Jacques Hiblot and other French people)" * tag 'cleanup-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (89 commits) ARM: hisi: select HAVE_ARM_SCU only for SMP ARM: efm32: allow uncompress debug output ARM: prima2: build reset code standalone ARM: at91: add PWM clock ARM: at91: move sam9261 SoC to common clk ARM: at91: prepare common clk transition for sam9261 SoC ARM: at91: updated the at91_dt_defconfig with support for the ADS7846 ARM: at91: dt: sam9261: Device Tree support for the at91sam9261ek ARM: at91: dt: defconfig: Added the sam9261 to the list of DT-enabled SOCs ARM: at91: dt: Add at91sam9261 dt SoC support ARM: at91: switch sam9rl to common clock framework ARM: at91/dt: define main clk frequency of at91sam9rlek ARM: at91/dt: define at91sam9rl clocks ARM: at91: prepare common clk transition for sam9rl SoCs ARM: at91: prepare sam9 dt boards transition to common clk ARM: at91: dt: sam9rl: Device Tree for the at91sam9rlek ARM: at91/defconfig: Add the sam9rl to the list of DT-enabled SOCs ARM: at91: Add at91sam9rl DT SoC support ARM: at91: prepare at91sam9rl DT transition ARM: at91/defconfig: refresh at91sam9260_9g20_defconfig ...
2014-03-29Merge tag 'exynos-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup3Arnd Bergmann3-10/+14
Merge "Exynos cleanup for v3.15" from Kukjin Kim: - reorganize code for - add support reserve memory for mfc-v7 - consolidate exynos4 and exynos5 machine codes - add generic compatible strings for exynos4 and exynos5 - update DT with generic compatible strings - move clk related dt-binding header file in dt-bindings/clock * tag 'exynos-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: dt-bindings: clock: Move exynos-audss-clk.h to dt-bindings/clock ARM: dts: Update Exynos DT files with generic compatible strings ARM: EXYNOS: Add generic compatible strings ARM: EXYNOS: Consolidate exynos4 and exynos5 machine files ARM: EXYNOS: Consolidate CPU init code ARM: SAMSUNG: Introduce generic Exynos4 and 5 helpers ARM: EXYNOS: Add support to reserve memory for MFC-v7 ARM: SAMSUNG: Reorganize calls to reserve memory for MFC Conflicts: arch/arm/mach-exynos/exynos.c Signed-off-by; Arnd Bergmann <arnd@arndb.de>
2014-03-29Merge tag 'samsung-pm-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup3Arnd Bergmann9-267/+292
Merge "Samsung PM related 2nd updates for v3.15" from Kukjin Kim: From Tomasz Figa <t.figa@samsung.com>: Current Samsung PM code is heavily unprepared for multiplatform systems. The design implies accessing functions and global variables defined in particular mach- subdirectory from common code in plat-, which is not allowed when building ARCH_MULTIPLATFORM. In addition there is a lot of forced code unification, which makes common function handle any possible quirks of all supported SoCs. In the end this design turned out to not work too well, ending with a lot of empty functions exported from mach-, just because code in common pm.c calls them. Moreover, recent trend of moving lower level suspend/resume code to proper drivers, like pinctrl or clk, made a lot of code there redundant, especially on DT-only platforms like Exynos. Note that this branch is based on previous tags/samsung-pm-1 and merge tags/samsung-cleanup-2 because of fix build error from recent changes of <linux/serial_s3c.h> * tag 'samsung-pm-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: Fix compilation error in cpuidle.c ARM: S5P64X0: Explicitly include linux/serial_s3c.h in mach/pm-core.h ARM: S3C64XX: Fix build for implicit serial_s3c.h inclusion serial: s3c: Fix build of header without serial_core.h preinclusion ARM: EXYNOS: Allow wake-up using GIC interrupts ARM: EXYNOS: Stop using legacy Samsung PM code ARM: EXYNOS: Remove PM initcalls and useless indirection ARM: EXYNOS: Fix abuse of CONFIG_PM ARM: SAMSUNG: Move s3c_pm_check_* prototypes to plat/pm-common.h ARM: SAMSUNG: Move common save/restore helpers to separate file ARM: SAMSUNG: Move Samsung PM debug code into separate file ARM: SAMSUNG: Consolidate PM debug functions ARM: SAMSUNG: Use debug_ll_addr() to get UART base address ARM: SAMSUNG: Save UART DIVSLOT register based on SoC type ARM: SAMSUNG: Add soc_is_s3c2410() helper ARM: EXYNOS: Do not resume l2x0 if not enabled before suspend Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-03-21ARM: samsung: select CRC32 for SAMSUNG_PM_CHECKArnd Bergmann1-1/+2
The Samsung pm_check code uses the crc32 library code, which can be built as a loadable module, in which case we get a link error building the kernel. A better solution is to use 'select CRC32', which is what all other users of this code do, as it ensures it is always built-in. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org>
2014-03-21ARM: samsung: fix SAMSUNG_PM_DEBUG Kconfig logicArnd Bergmann1-2/+1
The suspend debug code for Samsung has multiple dependencies that we should not unconditionally enable. In particular, we rely on the DEBUG_S3C_UART setting, which in turn depends on the samsung UART driver. Signed-off-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org>
2014-03-21ARM: samsung: allow serial driver to be disabledArnd Bergmann1-0/+4
If CONFIG_SERIAL_SAMSUNG is disabled, we run into build errors with some samsung platforms. This adds a couple of #ifdef statements to hopefully deal with this more gracefully. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org>
2014-03-21ARM: SAMSUNG: Remove hardware.h inclusionSachin Kamat5-6/+1
The contents of this header file are not referenced anywhere in the included .c files except in devs.c. Remove its inclusion. For devs.c, explicitly include sizes.h header for SZ_* macros. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: EXYNOS: Stop using legacy Samsung PM codeTomasz Figa1-45/+0
Since Exynos SoCs does not follow most of the semantics of older SoCs when configuring the system to enter sleep, there is no reason to rely on the legacy Samsung PM core anymore. This patch adds local Exynos suspend ops and removes all the code left unnecessary. As a side effect, suspend support on Exynos becomes multiplatform-friendly. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Move s3c_pm_check_* prototypes to plat/pm-common.hTomasz Figa3-15/+15
To allow using Samsung PM memory check helpers on platforms that do not use the legacy Samsung PM core, this patch moves prototypes of relevant functions to plat/pm-common.h header. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Move common save/restore helpers to separate fileTomasz Figa5-81/+102
To separate legacy PM code from generic helpers, this patch moves the generic register save/restore helpers to a new file called pm-common.c that is compiled always when CONFIG_PM_SLEEP is enabled, to allow platforms that do not want to use the legacy PM code use the generic helpers. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Move Samsung PM debug code into separate fileTomasz Figa5-122/+169
Not all Samsung SoC platforms are going to use the legacy Samsung PM code enabled by CONFIG_SAMSUNG_PM_DEBUG. To allow using Samsung PM debug helpers on such platforms, related code is moved to separate file and a plat/pm-common.h header is added to separate legacy and generic code. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Consolidate PM debug functionsTomasz Figa1-14/+6
This patch removes one-line functions that was used just to pass constant arguments to lower level functions. After previous patches the need for those constants has been eliminated, so the main functions can be called directly. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Use debug_ll_addr() to get UART base addressTomasz Figa1-2/+13
This patch modifies Samsung PM debug helpers to use a multiplatform friendly way of getting base address of debug UART port, so instead of using a per-mach static macro, a generic debug_ll_addr() helper is used. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Save UART DIVSLOT register based on SoC typeTomasz Figa2-15/+6
The only SoC that does not have DIVSLOT register is S3C2410, so instead of exporting a variable for platforms to set if DIVSLOT register should be preserved, it's enough to simply check whether we are running on a S3C2410 instead. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Add soc_is_s3c2410() helperTomasz Figa1-0/+6
Due to the S3C2410 SoC being quite different from other S3C24xx SoCs in some aspects, such as availability of DIVSLOT register in its UART blocks, there is a need sometimes to check whether we are running on this SoC, not just the S3C24xx series. This patch adds soc_is_s3c2410() helper function for this purpose. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: EXYNOS: Do not resume l2x0 if not enabled before suspendTomasz Figa1-3/+5
Trying to resume l2x0 if it was not enabled before suspend leads to system crash. This patch prevents this by checking if l2x0_regs_phys is a valid pointer to l2x0 context data saved on initialization. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Introduce generic Exynos4 and 5 helpersSachin Kamat1-0/+4
Add helpers to check for Exynos4 and 5 family of SoCs. This will eliminate comparing long list of SoCs and make code simpler. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Reorganize calls to reserve memory for MFCTushar Behera2-10/+10
Reorganize code so that "plat/mfc.h" is no more referred from mach-exynos directory. Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>