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* clk: nxp: Remove clk.h includeStephen Boyd2015-07-201-1/+0
| | | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. Acked-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: mxs: Include clk.h in C files that use itStephen Boyd2015-07-207-8/+4
| | | | | | | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. The clk.h include is being included in all mxs files because it's part of mxs/clk.h even though nothing actually requires it in that file. Move the clk.h include to the C files that are actually using it and remove the clk.h include from the header file. The clkdev.h include isn't used either, so drop it too. Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: mvebu: Remove clk.h includeStephen Boyd2015-07-202-2/+3
| | | | | | | | | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Only include the header if necessary. The clkdev.h include isn't used here either, so drop it and add in slab.h to keep things compiling. Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Gregory CLEMENT <gregory.clement@free-electrons.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Cc: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: mmp: Remove clk.h includeStephen Boyd2015-07-203-4/+1
| | | | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. The clkdev.h include isn't used either, so drop it and add in slab.h to keep things compiling. Cc: Chao Xie <chao.xie@marvell.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: meson8b: Properly include clk.hStephen Boyd2015-07-202-1/+1
| | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Only include clk.h if it's actually used. Cc: Carlo Caione <carlo@endlessm.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: mediatek: Properly include clk.hStephen Boyd2015-07-204-2/+6
| | | | | | | | | | | We don't need to include clk.h in header files, just forward declare struct clk here. This leads us to a few places where the include of clk.h was missing in C files. Add them. Cc: James Liao <jamesjj.liao@mediatek.com> Cc: Henry Chen <henryc.chen@mediatek.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: keystone: Remove clk.h includeStephen Boyd2015-07-202-2/+0
| | | | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. Cc: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com> Cc: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: hisilicon: Remove clk.h includeStephen Boyd2015-07-204-8/+1
| | | | | | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. Also drop the clkdev.h include in files that aren't using it. Cc: Bintian Wang <bintian.wang@huawei.com> Cc: Zhangfei Gao <zhangfei.gao@linaro.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: wm831x: Remove clk.h includeStephen Boyd2015-07-201-1/+0
| | | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: u300: Remove clk.h includeStephen Boyd2015-07-201-1/+1
| | | | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. Also add in slab.h because without clkdev.h compilation of this file would fail. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: twl6040: Remove clk.h includeStephen Boyd2015-07-201-1/+0
| | | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: si5351: Include clk.hStephen Boyd2015-07-201-1/+1
| | | | | | | | This clock provider uses the consumer API, so include clk.h explicitly. Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: rk808: Remove clk.h includeStephen Boyd2015-07-201-1/+0
| | | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. Cc: Chris Zhong <zyw@rock-chips.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: palmas: Remove clkdev.h includesStephen Boyd2015-07-201-1/+0
| | | | | | | | | This driver includes clkdev.h even though it isn't used, so drop it. Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Cc: Nishanth Menon <nm@ti.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: nomadik: Remove clk.h and clkdev.h includesStephen Boyd2015-07-201-2/+1
| | | | | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. This driver also includes clkdev.h even though it isn't used, so drop it too and add slab.h to make sure everything still compiles. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: mux: Remove clk.h includeStephen Boyd2015-07-201-1/+0
| | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: efm32gg: Remove clk.h includeStephen Boyd2015-07-201-1/+0
| | | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: clps711x: Remove clk.h includeStephen Boyd2015-07-201-1/+0
| | | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. Cc: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: cdce706: Include clk.hStephen Boyd2015-07-201-0/+1
| | | | | | | | This clock provider uses the consumer API, so include clk.h explicitly. Cc: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: axi-clkgen: Remove clk.h includeStephen Boyd2015-07-201-1/+0
| | | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. Cc: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: i.MX: Remove clk.h includeStephen Boyd2015-07-205-5/+0
| | | | | | | | | | | Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. Cc: Alexander Shiyan <shc_work@mail.ru> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* Merge tag 'module-builtin_driver-v4.1-rc8' of ↵Linus Torvalds2015-07-021-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux Pull module_platform_driver replacement from Paul Gortmaker: "Replace module_platform_driver with builtin_platform driver in non modules. We see an increasing number of non-modular drivers using modular_driver() type register functions. There are several downsides to letting this continue unchecked: - The code can appear modular to a reader of the code, and they won't know if the code really is modular without checking the Makefile and Kconfig to see if compilation is governed by a bool or tristate. - Coders of drivers may be tempted to code up an __exit function that is never used, just in order to satisfy the required three args of the modular registration function. - Non-modular code ends up including the <module.h> which increases CPP overhead that they don't need. - It hinders us from performing better separation of the module init code and the generic init code. So here we introduce similar macros for builtin drivers. Then we convert builtin drivers (controlled by a bool Kconfig) by making the following type of mapping: module_platform_driver() ---> builtin_platform_driver() module_platform_driver_probe() ---> builtin_platform_driver_probe(). The set of drivers that are converted here are just the ones that showed up as relying on an implicit include of <module.h> during a pending header cleanup. So we convert them here vs adding an include of <module.h> to non-modular code to avoid compile fails. Additonal conversions can be done asynchronously at any time. Once again, an unused module_exit function that is removed here appears in the diffstat as an outlier wrt all the other changes" * tag 'module-builtin_driver-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: drivers/clk: convert sunxi/clk-mod0.c to use builtin_platform_driver drivers/power: Convert non-modular syscon-reboot to use builtin_platform_driver drivers/soc: Convert non-modular soc-realview to use builtin_platform_driver drivers/soc: Convert non-modular tegra/pmc to use builtin_platform_driver drivers/cpufreq: Convert non-modular s5pv210-cpufreq.c to use builtin_platform_driver drivers/cpuidle: Convert non-modular drivers to use builtin_platform_driver drivers/platform: Convert non-modular pdev_bus to use builtin_platform_driver platform_device: better support builtin boilerplate avoidance
| * drivers/clk: convert sunxi/clk-mod0.c to use builtin_platform_driverPaul Gortmaker2015-06-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver builds based on obj-y and hence will not ever be modular. Change it to use the non-modular registration so that it won't suffer a compile fail once a header move places the modular registration within the module.h file. Cc: "Emilio López" <emilio@elopez.com.ar> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: linux-clk@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* | Merge tag 'module_init-device_initcall-v4.1-rc8' of ↵Linus Torvalds2015-07-021-2/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux Pull module_init replacement part one from Paul Gortmaker: "Replace module_init with equivalent device_initcall in non modules. This series of commits converts non-modular code that is using the module_init() call to hook itself into the system to instead use device_initcall(). The conversion is a runtime no-op, since module_init actually becomes __initcall in the non-modular case, and that in turn gets mapped onto device_initcall. A couple files show a larger negative diffstat, representing ones that had a module_exit function that we remove here vs previously relying on the linker to dispose of it. We make this conversion now, so that we can relocate module_init from init.h into module.h in the future. The files changed here are just limited to those that would otherwise have to add module.h to obviously non-modular code, in order to avoid a compile fail, as testing has shown" * tag 'module_init-device_initcall-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: MIPS: don't use module_init in non-modular cobalt/mtd.c file drivers/leds: don't use module_init in non-modular leds-cobalt-raq.c cris: don't use module_init for non-modular core eeprom.c code tty/metag_da: Avoid module_init/module_exit in non-modular code drivers/clk: don't use module_init in clk-nomadik.c which is non-modular xtensa: don't use module_init for non-modular core network.c code sh: don't use module_init in non-modular psw.c code mn10300: don't use module_init in non-modular flash.c code parisc64: don't use module_init for non-modular core perf code parisc: don't use module_init for non-modular core pdc_cons code cris: don't use module_init for non-modular core intmem.c code ia64: don't use module_init in non-modular sim/simscsi.c code ia64: don't use module_init for non-modular core kernel/mca.c code arm: don't use module_init in non-modular mach-vexpress/spc.c code powerpc: don't use module_init in non-modular 83xx suspend code powerpc: use device_initcall for registering rtc devices x86: don't use module_init in non-modular devicetree.c code x86: don't use module_init in non-modular intel_mid_vrtc.c
| * | drivers/clk: don't use module_init in clk-nomadik.c which is non-modularPaul Gortmaker2015-06-161-2/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The clk-nomadik.o is built for ARCH_NOMADIK -- which is bool, and hence this code is either present or absent. It will never be modular, so using module_init as an alias for __initcall can be somewhat misleading. Fix this up now, so that we can relocate module_init from init.h into module.h in the future. If we don't do this, we'd have to add module.h to obviously non-modular code, and that would be a worse thing. Note that direct use of __initcall is discouraged, vs. one of the priority categorized subgroups. As __initcall gets mapped onto device_initcall, our use of device_initcall directly in this change means that the runtime impact is zero -- it will remain at level 6 in initcall ordering. Cc: Mike Turquette <mturquette@linaro.org> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* | Merge tag 'module-implicit-v4.1-rc8' of ↵Linus Torvalds2015-07-022-0/+2
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux Pull implicit module.h fixes from Paul Gortmaker: "Fix up implicit <module.h> users that will break later. The files changed here are simply modular source files that are implicitly relying on <module.h> being present. We fix them up now, so that we can decouple some of the module related init code from the core init code in the future. The addition of the module.h include to several files here is also a no-op from a code generation point of view, else there would already be compile issues with these files today. There may be lots more implicit includes of <module.h> in tree, but these are the ones that extensive build test coverage has shown that must be fixed in order to avoid build breakage fallout for the pending module.h <---> init.h code relocation we desire to complete" * tag 'module-implicit-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: frv: add module.h to mb93090-mb00/flash.c to avoid compile fail drivers/cpufreq: include <module.h> for modular exynos-cpufreq.c code drivers/staging: include <module.h> for modular android tegra_ion code crypto/asymmetric_keys: pkcs7_key_type needs module.h sh: mach-highlander/psw.c is tristate and should use module.h drivers/regulator: include <module.h> for modular max77802 code drivers/pcmcia: include <module.h> for modular xxs1500_ss code drivers/hsi: include <module.h> for modular omap_ssi code drivers/gpu: include <module.h> for modular rockchip code drivers/gpio: include <module.h> for modular crystalcove code drivers/clk: include <module.h> for clk-max77xxx modular code
| * | drivers/clk: include <module.h> for clk-max77xxx modular codePaul Gortmaker2015-06-162-0/+2
| |/ | | | | | | | | | | | | | | | | | | | | | | These files are built off of the tristate COMMON_CLK_MAX77686 and COMMON_CLK_MAX77802 respectively. They also contains modular function calls so they should explicitly include module.h to avoid compile breakage during header shuffles done in the future. Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* | Merge tag 'clk-for-linus-4.2' of ↵Linus Torvalds2015-07-01136-1284/+12641
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clock framework updates from Michael Turquette: "The changes to the common clock framework for 4.2 are dominated by new drivers and updates to existing ones, as usual. There are some fixes to the framework itself and several cleanups for sparse warnings, etc" * tag 'clk-for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (135 commits) clk: stm32: Add clock driver for STM32F4[23]xxx devices dt-bindings: Document the STM32F4 clock bindings cpufreq: exynos: remove Exynos4210 specific cpufreq driver support ARM: Exynos: switch to using generic cpufreq driver for Exynos4210 clk: samsung: exynos4: add cpu clock configuration data and instantiate cpu clock clk: samsung: add infrastructure to register cpu clocks clk: add CLK_RECALC_NEW_RATES clock flag for Exynos cpu clock support doc: dt: add documentation for lpc1850-ccu clk driver clk: add lpc18xx ccu clk driver doc: dt: add documentation for lpc1850-cgu clk driver clk: add lpc18xx cgu clk driver clk: keystone: add support for post divider register for main pll clk: mvebu: flag the crypto clk as CLK_IGNORE_UNUSED clk: cygnus: remove Cygnus dummy clock binding clk: cygnus: add clock support for Broadcom Cygnus clk: Change bcm clocks build dependency clk: iproc: add initial common clock support clk: iproc: define Broadcom iProc clock binding MAINTAINERS: update email for Michael Turquette clk: meson: add some error handling in meson_clk_register_cpu() ...
| * | clk: stm32: Add clock driver for STM32F4[23]xxx devicesDaniel Thompson2015-06-222-0/+381
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver supports decoding and statically modelling PLL state (i.e. we inherit state from bootloader) and provides support for all peripherals that support simple one-bit gated clocks. The covers all peripherals whose clocks come from the AHB, APB1 or APB2 buses. It has been tested on an STM32F429I-Discovery board. The clock counts for TIM2, USART1 and SYSTICK are all set correctly and the wall clock looks OK when checked with a stopwatch. I have also tested a prototype driver for the RNG hardware. The RNG clock is correctly enabled by the framework (also did inverse test and proved that by changing DT to configure the wrong clock bit then we observe the RNG driver to fail). Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> Reviewed-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> [sboyd@codeaurora.org: Silence sparse warnings] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
| * | Merge tag 'tegra-for-4.2-clk' of ↵Michael Turquette2015-06-208-15/+569
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into clk-next clk: tegra: Changes for v4.2-rc1 This contains the EMC clock driver that's been exhaustively reviewed and tested. It also includes a change to the clock core that allows a clock provider to perform low-level reparenting of clocks. This is required by the EMC clock driver because the reparenting needs to be done at a very specific point in time during the EMC frequency switch.
| | * | clk: tegra: Fix hda2codec_2x clock name for Tegra30Marcel Ziswiler2015-05-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The HDA to codec clock is named hda2codec_2x, so use the proper name in the clock table. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
| | * | clk: tegra: EMC clock driver depends on EMC driverThierry Reding2015-05-134-1/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The EMC clock driver uses symbols exported by the EMC driver, so it needs the corresponding dependency to avoid build breakage. Signed-off-by: Thierry Reding <treding@nvidia.com>
| | * | clk: tegra: Have EMC clock implement determine_rate()Tomeu Vizoso2015-05-131-12/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As opposed to round_rate(), determine_rate() can take rate constraints into account when choosing the best rate. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
| | * | clk: tegra: Set the EMC clock as the parent of the MC clockTomeu Vizoso2015-05-131-12/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | On Tegra124, as we now have a proper driver for the EMC. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
| | * | clk: tegra: Add EMC clock driverMikko Perttunen2015-05-134-2/+535
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver is currently only tested on Tegra124 Jetson TK1, but should work with other Tegra124 boards, provided that correct EMC tables are provided through the device tree. Older chip models have differing timing change sequences, so they are not currently supported. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> [treding@nvidia.com: use more consistent function names] Signed-off-by: Thierry Reding <treding@nvidia.com>
| | * | clk: tegra: Remove old Tegra124 EMC clockMikko Perttunen2015-05-131-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This clock has never been able to do anything. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
| | * | clk: Expose clk_hw_reparent() to providersTomeu Vizoso2015-05-131-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To be used by clock implementations for switching to a new parent during rate change. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
| * | | Merge branch 'clk-exynos-cpu-clk' into clk-nextMichael Turquette2015-06-205-2/+449
| |\ \ \ | | | | | | | | | | | | | | | | | | | | Folded into this merge commit is a build error fix: s/clk/core in clk_change_rate due to the new struct clk_core
| | * | | clk: samsung: exynos4: add cpu clock configuration data and instantiate cpu ↵Thomas Abraham2015-06-201-1/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | clock With the addition of the new Samsung specific cpu-clock type, the arm clock can be represented as a cpu-clock type. Add the CPU clock configuration data and instantiate the CPU clock type for Exynos4210. Changes by Bartlomiej: - fixed issue with wrong dividers being setup by Common Clock Framework (by an addition of CLK_RECALC_NEW_RATES clock flag to mout_apll clock, without this change cpufreq-dt driver showed ~10 mA larger energy consumption when compared to cpufreq-exynos one when "performance" cpufreq governor was used on Exynos4210 SoC based Origen board), this was probably meant to be workarounded by use of CLK_GET_RATE_NOCACHE and CLK_DIVIDER_READ_ONLY clock flags in the original patchset (in "[PATCH v12 6/6] clk: samsung: remove unused clock aliases and update clock flags") but using these flags is not sufficient to fix the issue observed - removed Exynos5250 and Exynos5420 support for now Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Mike Turquette <mturquette@linaro.org> Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
| | * | | clk: samsung: add infrastructure to register cpu clocksThomas Abraham2015-06-203-1/+423
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The CPU clock provider supplies the clock to the CPU clock domain. The composition and organization of the CPU clock provider could vary among Exynos SoCs. A CPU clock provider can be composed of clock mux, dividers and gates. This patch defines a new clock type for CPU clock provider and adds infrastructure to register the CPU clock providers for Samsung platforms. Changes by Bartlomiej: - fixed issue with setting lower dividers before the parent clock speed was lowered (the issue resulted in lockup on Exynos4210 SoC based Origen board when "ondemand" cpufreq governor was stress tested) - fixed missing spin_unlock on error in exynos_cpuclk_post_rate_change() problem by moving cfg_data search outside of the spin locked area - removed leftover kfree() in exynos_register_cpu_clock() that could result in dereferencing the NULL pointer on error - moved spin_lock earlier in exynos_cpuclk_pre_rate_change() to cover reading of E4210_SRC_CPU and E4210_DIV_CPU1 registers - added missing "last chance" checks to wait_until_divider_stable() and wait_until_mux_stable() (needed in case that IRQ handling took long time to proceed and resulted in function printing incorrect error message about timeout) - moved E4210_CPU_DIV[0,1]() macros just before their only users, this resulted in moving them from patch #2 to patch #3/6 ("clk: samsung: exynos4: add cpu clock configuration data and instantiate cpu clock") - removed E5250_CPU_DIV[0,1](), E5420_EGL_DIV0() and E5420_KFC_DIV() macros for now - added my Copyrights to drivers/clk/samsung/clk-cpu.c Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Mike Turquette <mturquette@linaro.org> Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
| | * | | clk: add CLK_RECALC_NEW_RATES clock flag for Exynos cpu clock supportBartlomiej Zolnierkiewicz2015-06-201-0/+3
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This flag is needed to fix the issue with wrong dividers being setup by Common Clock Framework when using the new Exynos cpu clock support. The issue happens because clk_core_set_rate_nolock() calls clk_calc_new_rates(clk, rate) before both pre/post clock notifiers have a chance to run. In case of Exynos cpu clock support pre/post clock notifiers are registered for mout_apll clock which is a parent of armclk cpu clock and dividers are modified in both pre and post clock notifier. This results in wrong dividers values being later programmed by clk_change_rate(top). To workaround the problem CLK_RECALC_NEW_RATES flag is added and it is set for mout_apll clock later so the correct divider values are re-calculated after both pre and post clock notifiers had run. For example when using "performance" governor on Exynos4210 Origen board the cpufreq-dt driver requests to change the frequency from 1000MHz to 1200MHz and after the change state of the relevant clocks is following: Without use of CLK_GET_RATE_NOCACHE flag: fout_apll rate: 1200000000 fout_apll_div_2 rate: 600000000 mout_clkout_cpu rate: 600000000 div_clkout_cpu rate: 600000000 clkout_cpu rate: 600000000 mout_apll rate: 1200000000 armclk rate: 1200000000 mout_hpm rate: 1200000000 div_copy rate: 300000000 div_hpm rate: 300000000 mout_core rate: 1200000000 div_core rate: 1200000000 div_core2 rate: 1200000000 arm_clk_div_2 rate: 600000000 div_corem0 rate: 300000000 div_corem1 rate: 150000000 div_periph rate: 300000000 div_atb rate: 300000000 div_pclk_dbg rate: 150000000 sclk_apll rate: 1200000000 sclk_apll_div_2 rate: 600000000 With use of CLK_GET_RATE_NOCACHE flag: fout_apll rate: 1200000000 fout_apll_div_2 rate: 600000000 mout_clkout_cpu rate: 600000000 div_clkout_cpu rate: 600000000 clkout_cpu rate: 600000000 mout_apll rate: 1200000000 armclk rate: 1200000000 mout_hpm rate: 1200000000 div_copy rate: 200000000 div_hpm rate: 200000000 mout_core rate: 1200000000 div_core rate: 1200000000 div_core2 rate: 1200000000 arm_clk_div_2 rate: 600000000 div_corem0 rate: 300000000 div_corem1 rate: 150000000 div_periph rate: 300000000 div_atb rate: 240000000 div_pclk_dbg rate: 120000000 sclk_apll rate: 150000000 sclk_apll_div_2 rate: 75000000 Without this change cpufreq-dt driver showed ~10 mA larger energy consumption when compared to cpufreq-exynos one when "performance" cpufreq governor was used on Exynos4210 SoC based Origen board. This issue was probably meant to be workarounded by use of CLK_GET_RATE_NOCACHE and CLK_DIVIDER_READ_ONLY clock flags in the original Exynos cpu clock patchset (in "[PATCH v12 6/6] clk: samsung: remove unused clock aliases and update clock flags" patch) but usage of these flags is not sufficient to fix the issue observed. Cc: Thomas Abraham <thomas.ab@samsung.com> Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Mike Turquette <mturquette@linaro.org> Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
| * | | clk: add lpc18xx ccu clk driverJoachim Eastwood2015-06-182-0/+294
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add driver for NXP LPC18xx/43xx Clock Control Unit (CCU). The CCU provides fine grained gating of most clocks present in the SoC. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
| * | | clk: add lpc18xx cgu clk driverJoachim Eastwood2015-06-183-0/+637
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add driver for NXP LPC18xx/43xx Clock Generation Unit (CGU). The CGU contains several clock generators and output stages that route the clocks either directly to peripherals or to a Clock Control Unit (CCU). Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
| * | | clk: keystone: add support for post divider register for main pllMurali Karicheri2015-06-181-2/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Main PLL controller has post divider bits in a separate register in pll controller. Use the value from this register instead of fixed divider when available. Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
| * | | Merge tag 'sunxi-clocks-for-4.2' of ↵Michael Turquette2015-06-183-5/+18
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-next Allwinner clocks additions for 4.2 One error fix, and one patch to add support for the USB clock found on the Allwinner A23 and A33
| | * | | clk: sunxi: Add support for the usb-clk on sun8i a23 and a33 SoCsHans de Goede2015-06-021-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The usb-clk on sun8i a23 and a33 SoCs is similar to the ones found on sun6i-a31 SoCs but instead of a 3th phy the a23 / a33 have a hsic interface which gets enabled by almost the same bits as used on the a31 for the 3rd phy, but not exactly the same bits so we need a new compatible for this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Chen-Yu Tsai <wens@csie.org>
| | * | | clk: sunxi: Fix of_io_request_and_map error checkMaxime Ripard2015-05-052-5/+7
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | of_io_request_and map returns an error pointer, but the current code assumes that on error the returned pointer will be NULL. Obviously, that makes the check completely useless. Change the test to actually check for the proper error code. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: linux-clk@vger.kernel.org
| * | | clk: mvebu: flag the crypto clk as CLK_IGNORE_UNUSEDBoris Brezillon2015-06-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The crypto SRAM, used by the armada 370 cpuidle code to workaround a bug in the BootROM code, requires the crypto clk to be up and running. Flag the crypto clk as IGNORE_UNUSED until we add the proper infrastructure to define the crypto SRAM in the DT and reference the crypto clk in this SRAM node. Reported-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Tested-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
| * | | clk: cygnus: add clock support for Broadcom CygnusRay Jui2015-06-182-0/+266
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Broadcom Cygnus SoC is architected under the iProc architecture. It has the following PLLs: ARMPLL, GENPLL, LCPLL0, MIPIPLL, all dervied from an onboard crystal. Cygnus also has various ASIU clocks that are derived directly from the onboard crystal. Signed-off-by: Ray Jui <rjui@broadcom.com> Reviewed-by: Scott Branden <sbranden@broadcom.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
| * | | clk: Change bcm clocks build dependencyRay Jui2015-06-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The clock code under drivers/clk/bcm now contains code for both the Broadcom mobile SoCs and the iProc SoCs. Change the the makefile dependency to be under config flag CONFIG_ARCH_BCM that's enabled for both families of SoCs Signed-off-by: Ray Jui <rjui@broadcom.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-22 12:37:07 +0000