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* Merge tag 'spi-3.7' of ↵Linus Torvalds2012-10-022-1/+63
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc Pull spi updates from Mark Brown: "No framework work here, only a bunch of driver updates of varying sizes: - Factoring out of the core hardware support from the MXS MMC driver by Marek Vasut to allow the hardware to also be used for SPI. - Lots of error handling cleanups from Guenter Roeck - Removal of the existing Tegra driver which is quite comprehensively broken as detailed in the changelog for the removal. - DT suppport for the PL022 and GPIO drivers. - pinctrl support for OMAP and PL022." Pulling from Mark Brown as Grant Likely is still busy moving. * tag 'spi-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc: (53 commits) spi: remove completely broken Tegra driver spi/imx: set the inactive state of the clock according to the clock polarity spi/pl022: get/put resources on suspend/resume spi/pl022: use more managed resources spi/pl022: Devicetree support w/o platform data spi/s3c64xx: Don't free controller_data on non-dt platforms spi: omap2-mcspi: add pinctrl support spi/pl022: adopt pinctrl support spi: omap2-mcspi: Cleanup the omap2_mcspi_txrx_dma function spi/gpio: Fix stub for spi_gpio_probe_dt() spi/mxs: Make the SPI block clock speed configurable via DT spi: spi-sh-hspi: drop frees of devm_ alloc'd data spi/pl022: Fix chipselects pointer computation spi: spi-tle62x0: Use module_spi_driver macro mxs/spi: Rework the mxs_ssp_timeout to be more readable mxs/spi: Decrement the DMA/PIO border mxs/spi: Increment the transfer length only if transfer succeeded mxs/spi: Fix issues when doing long continuous transfer spi: spi-gpio: Add DT bindings spi: spi-gpio: store chipselect information in private structure ...
| *-. Merge branches 'spi-drivers' and 'spi-mxs' into spi-nextMark Brown2012-09-282-1/+63
| |\ \
| | | * mmc: spi: Pull out the SSP clock configuration functionMarek Vasut2012-08-172-1/+63
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull out the MMC clock configuration function and make it into SSP clock configuration function, so it can be used by the SPI driver too. Signed-off-by: Marek Vasut <marex@denx.de> Acked-by: Chris Ball <cjb@laptop.org> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* | | Merge tag 'soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-10-012-2/+2
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM soc-specific updates, take 2 from Olof Johansson: "This branch converts the MXS Freescale platform to use irqdomains and sparse IRQ, in preparation for DT probing and multiplatform kernels." * tag 'soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: mxs: remove mach/irqs.h ARM: mxs: select SPARSE_IRQ ARM: mxs: adopt irq_domain support for icoll driver ARM: mxs: select MULTI_IRQ_HANDLER ARM: mxs: retrieve timer irq from device tree gpio/mxs: adopt irq_domain support for mxs gpio driver
| * | | ARM: mxs: retrieve timer irq from device treeShawn Guo2012-09-032-2/+2
| | |/ | |/| | | | | | | | | | | | | | | | Rather than using the static timer irq definition, we should retrieve timer irq from device tree for better. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
* | | Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-10-014-148/+531
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM soc device tree updates from Olof Johansson: "Device tree conversion and enablement branch. Mostly a bunch of new bindings and setup for various platforms, but the Via/Winchip VT8500 platform is also converted over from being 100% legacy to now use device tree for probing. More of that will come for 3.8." Trivial conflicts due to removal of vt8500 files, and one documentation file that was added with slightly different contents both here and in the USb tree. * tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (212 commits) arm: vt8500: Fixup for missing gpio.h ARM: LPC32xx: LED fix in PHY3250 DTS file ARM: dt: mmp-dma: add binding file arm: vt8500: Update arch-vt8500 to devicetree support. arm: vt8500: gpio: Devicetree support for arch-vt8500 arm: vt8500: doc: Add device tree bindings for arch-vt8500 devices arm: vt8500: clk: Add Common Clock Framework support video: vt8500: Add devicetree support for vt8500-fb and wm8505-fb serial: vt8500: Add devicetree support for vt8500-serial rtc: vt8500: Add devicetree support for vt8500-rtc arm: vt8500: Add device tree files for VIA/Wondermedia SoC's ARM: tegra: Add Avionic Design Tamonten Evaluation Carrier support ARM: tegra: Add Avionic Design Medcom-Wide support ARM: tegra: Add Avionic Design Plutux support ARM: tegra: Add Avionic Design Tamonten support ARM: tegra: dts: Add pwm label ARM: ux500: Fix SSP register address format ARM: ux500: Apply tc3589x's GPIO/IRQ properties to HREF's DT ARM: ux500: Remove redundant #gpio-cell properties from Snowball DT ARM: ux500: Add all encompassing sound node to the HREF Device Tree ...
| * \ \ Merge tag 'vt8500-for-next' of git://git.code.sf.net/p/linuxwmt/code into ↵Olof Johansson2012-09-232-0/+511
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | next/dt From Tony Prisk: Update arch-vt8500 and drivers to device tree and remove existing non-dt code. * tag 'vt8500-for-next' of git://git.code.sf.net/p/linuxwmt/code: arm: vt8500: Update arch-vt8500 to devicetree support. arm: vt8500: gpio: Devicetree support for arch-vt8500 arm: vt8500: doc: Add device tree bindings for arch-vt8500 devices arm: vt8500: clk: Add Common Clock Framework support video: vt8500: Add devicetree support for vt8500-fb and wm8505-fb serial: vt8500: Add devicetree support for vt8500-serial rtc: vt8500: Add devicetree support for vt8500-rtc arm: vt8500: Add device tree files for VIA/Wondermedia SoC's Resolved add/change conflict in drivers/clk/Makefile. Signed-off-by: Olof Johansson <olof@lixom.net>
| | * | | arm: vt8500: clk: Add Common Clock Framework supportTony Prisk2012-09-212-0/+511
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds common clock framework support for arch-vt8500. Support for PLL and device clocks on VT8500, WM8505 and WM8650 are included. Signed-off-by: Tony Prisk <linux@prisktech.co.nz> Acked-by: Mike Turquette <mturquette@linaro.org>
| * | | Merge tag 'mxs-clk-dt-lookup' of ↵Olof Johansson2012-09-122-148/+20
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org/people/shawnguo/linux-2.6 into next/dt It replaces clk_register_clkdev in mxs clock driver with DT lookup. * tag 'mxs-clk-dt-lookup' of git://git.linaro.org/people/shawnguo/linux-2.6: clk: mxs: replace imx23 clk_register_clkdev with clock DT lookup clk: mxs: replace imx28 clk_register_clkdev with clock DT lookup
| | * | | clk: mxs: replace imx23 clk_register_clkdev with clock DT lookupShawn Guo2012-09-111-45/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It really becomes a maintenance issue that every time a device needs to look up (clk_get) a clock we have to patch kernel clock file to call clk_register_clkdev for that clock. Since clock DT support which is meant to resolve clock lookup in device tree is in place, the patch moves imx23 client devices' clock lookup over to device tree, so that any new lookup to be added at later time can just get done in DT instead of kernel. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
| | * | | clk: mxs: replace imx28 clk_register_clkdev with clock DT lookupShawn Guo2012-09-111-103/+10
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It really becomes a maintenance issue that every time a device needs to look up (clk_get) a clock we have to patch kernel clock file to call clk_register_clkdev for that clock. Since clock DT support which is meant to resolve clock lookup in device tree is in place, the patch moves imx28 client devices' clock lookup over to device tree, so that any new lookup to be added at later time can just get done in DT instead of kernel. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
* | | | Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-10-012-0/+60
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM soc-specific updates from Olof Johansson: "Most notable here is probably the addition of basic support for the BCM2835, an SoC used in some of the Roku 2 players as well as the much-hyped Raspberry Pi, cleaned up and contributed by Stephen Warren. It's still early days on mainline support, with just the basics working. But it has to start somewhere! Beyond that there's some conversions of clock infrastructure on tegra to common clock, misc updates for several other platforms, and OMAP now has its own bus (under drivers/bus) to manage its devices through. This branch adds two new directories outside of arch/arm: drivers/irqchip for new irq controllers, and drivers/bus for the above OMAP bus. It's expected that some of the other platforms will migrate parts of their platforms to those directories over time as well." Fix up trivial conflicts with the clk infrastructure changes. * tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (62 commits) ARM: shmobile: add new __iomem annotation for new code ARM: LPC32xx: Support GPI 28 ARM: LPC32xx: Platform update for devicetree completion of spi-pl022 ARM: LPC32xx: Board cleanup irqchip: fill in empty Kconfig ARM: SAMSUNG: Add check for NULL in clock interface ARM: EXYNOS: Put PCM, Slimbus, Spdif clocks to off state ARM: EXYNOS: Add bus clock for FIMD ARM: SAMSUNG: Fix HDMI related warnings ARM: S3C24XX: Add .get_rate callback for "camif-upll" clock ARM: EXYNOS: Fix incorrect help text ARM: EXYNOS: Turn off clocks for NAND, OneNAND and TSI controllers ARM: OMAP: AM33xx hwmod: fixup SPI after platform_data move MAINTAINERS: add an entry for the BCM2835 ARM sub-architecture ARM: bcm2835: instantiate console UART ARM: bcm2835: add stub clock driver ARM: bcm2835: add system timer ARM: bcm2835: add interrupt controller driver ARM: add infra-structure for BCM2835 and Raspberry Pi ARM: tegra20: add CPU hotplug support ...
| * | | | ARM: bcm2835: add stub clock driverSimon Arlott2012-09-192-0/+60
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a minimal stub clock driver for the BCM2835. Its sole purpose is to allow the PL011 AMBA clk_get() API calls to provide something that looks enough like a clock that the driver probes and operates correctly. This patch was extracted from git://github.com/lp0/linux.git branch rpi-split as of 2012/09/08, and modified as follows: * Reworked to call clk_register_fixed_rate(), and clk_register_clkdev() rather than using static data to represent the clocks. * Moved implementation to drivers/clk/. * Modified .dev_id for UART clocks to match UART DT node names. * s/bcm2708/bcm2835/. * Modified device tree vendor prefix. Signed-off-by: Chris Boot <bootc@bootc.net> Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: Dom Cobley <popcornmix@gmail.com> Signed-off-by: Dom Cobley <dc4@broadcom.com> Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Mike Turquette <mturquette@linaro.org>
* | | | Merge tag 'clk-for-linus' of git://git.linaro.org/people/mturquette/linuxLinus Torvalds2012-10-0123-20/+4256
|\ \ \ \ | | |/ / | |/| / | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull clk framework update from Michael Turquette: "The common clk framework changes for 3.7 are dominated by ARM platform ports to the framework along with one MIPS port, one MFD port, one minor framework enhancement and one helper function for platforms expressing their clock data through device tree." * tag 'clk-for-linus' of git://git.linaro.org/people/mturquette/linux: clk: add of_clk_src_onecell_get() support clk: ux500: Define smp_twd clock for u8500 mfd: dbx500: Provide a more accurate smp_twd clock clk: ux500: Support for prmcu_rate clock clk: Provide option for clk_get_rate to issue hw for new rate clock: max77686: Add driver for Maxim 77686 32Khz crystal oscillator. ARM: ux500: Switch to use common clock framework clk: ux500: Clock definitions for u8500 clk: ux500: First version of clock definitions for ux500 clk: ux500: Adapt PRCMU and PRCC clocks for common clk clk: versatile: make config option boolean clk: add Loongson1B clock support arm: mmp: make all SOCs use common clock by default clk: mmp: add clock definition for mmp2 clk: mmp: add clock definition for pxa910 clk: mmp: add clock definition for pxa168 clk: mmp: add mmp specific clocks clk: convert ARM RealView to common clk clk: prima2: move from arch/arm/mach to drivers/clk ARM: PRIMA2: convert to common clk and finish full clk tree
| * | clk: add of_clk_src_onecell_get() supportShawn Guo2012-09-071-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For those SoCs that have hundreds of clock outputs, their clock DT bindings could reasonably define #clock-cells as 1 and require the client device specify the index of the clock it consumes in the cell of its "clocks" phandle. Add a generic of_clk_src_onecell_get() function for this purpose. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Reviewed-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: ux500: Define smp_twd clock for u8500Ulf Hansson2012-09-061-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | The smp_twd clock is based upon a prcmu_rate clock type for the PRCMU_ARMSS clock. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: ux500: Support for prmcu_rate clockUlf Hansson2012-09-062-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | The prmcu_rate clock is not gateable and has a rate which only can be fetched. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: Provide option for clk_get_rate to issue hw for new rateUlf Hansson2012-09-061-19/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | By using CLK_GET_RATE_NOCACHE flag, we tell the clk_get_rate API to issue the hw for an updated clock rate. This can be used for a clock which rate may be updated without a client necessary modifying it. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clock: max77686: Add driver for Maxim 77686 32Khz crystal oscillator.Jonghwa Lee2012-09-063-0/+251
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch supports max77686 mfd's clock driver using common clock frame work. max77686 has 3 clock ouputs which all are generated from crystal oscillator and SOC can enable/disable them via I2C bus. All clocks are fixed-rate clock sources so that it doesn't supply interface for changing clock rate. Driver uses regmap API to communicate with internal register. Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | ARM: ux500: Switch to use common clock frameworkUlf Hansson2012-09-061-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Remove machine specific clock implementation and switch to use new common clock framework. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: ux500: Clock definitions for u8500Ulf Hansson2012-09-061-1/+453
| | | | | | | | | | | | | | | | | | | | | | | | | | | First version of clock definitions of PRCMU and PRCC clocks for the u8500 platform. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: ux500: First version of clock definitions for ux500Ulf Hansson2012-09-064-0/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | In this first version of the clock definitions, the structure for ux500 are set. Support for u8500, u9540 and u8540 are prepared. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: ux500: Adapt PRCMU and PRCC clocks for common clkUlf Hansson2012-09-064-0/+452
| | | | | | | | | | | | | | | | | | | | | | | | | | | First version of common clock implementation of PRCMU clocks and PRCC clocks for ux500 platforms. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: versatile: make config option booleanLinus Walleij2012-09-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | There is no choice to have the RealView clocks as module for sure, so turn this config option into a boolean. Reported-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: add Loongson1B clock supportKelvin Cheung2012-08-312-0/+112
| | | | | | | | | | | | | | | | | | | | | | | | This adds clock support to Loongson1B SoC using the common clock infrastructure. Signed-off-by: Kelvin Cheung <keguang.zhang@gmail.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: mmp: add clock definition for mmp2Chao Xie2012-08-282-0/+450
| | | | | | | | | | | | | | | | | | | | | | | | | | | Initialize the clocks for mmp2 Signed-off-by: Chao Xie <xiechao.mail@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: mmp: add clock definition for pxa910Chao Xie2012-08-282-0/+321
| | | | | | | | | | | | | | | | | | | | | | | | | | | Initialize the clocks for pxa910 Signed-off-by: Chao Xie <xiechao.mail@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: mmp: add clock definition for pxa168Chao Xie2012-08-282-0/+348
| | | | | | | | | | | | | | | | | | | | | | | | | | | Initialize the clocks for pxa168 Signed-off-by: Chao Xie <xiechao.mail@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: mmp: add mmp specific clocksChao Xie2012-08-286-0/+445
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | add mmp specific clocks including apbc cloks, apmu clocks, and pll2, fraction clocks Signed-off-by: Chao Xie <xiechao.mail@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: convert ARM RealView to common clkLinus Walleij2012-08-244-1/+123
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This converts the ARM RealView machine over to using the common clock. The approach is similar to the one used for the Integrator, and we're reusing the ICST wrapper code. We have to put the clock intialization in the timer init function for the clocks to be available when initializing the timer, keeping them in early_init() is too early for the common clk. Since we now have to go down and compile drivers/clk/versatile a CONFIG_COMMON_CLK_VERSATILE symbol has been added so the proper code gets compiled into the kernel for either machine. A leftover CLK_VERSATILE in the Integrator Kconfig was fixed up to use the new symbol as well. Tested on ARM RealView PB1176. Cc: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: prima2: move from arch/arm/mach to drivers/clkBarry Song2012-08-242-0/+1172
| |/ | | | | | | | | | | Signed-off-by: Barry Song <Baohua.Song@csr.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* | ARM: 7537/1: clk: Fix release in devm_clk_put()Mark Brown2012-09-191-1/+1
| | | | | | | | | | | | | | | | | | Surprisingly devres_destroy() doesn't call the destructor for the resource it is destroying, use the newly added devres_release() instead to fix this. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | ARM: 7534/1: clk: Make the managed clk functions generically availableLars-Peter Clausen2012-09-153-45/+56
|/ | | | | | | | | | | | | | | | The managed clk functions are currently only available when the generic clk lookup framework is build. But the managed clk functions are merely wrappers around clk_get and clk_put and do not depend on any specifics of the generic lookup functions and there are still quite a few custom implementations of the clk API. So make the managed functions available whenever the clk API is implemented. The patch also removes the custom implementation of devm_clk_get for the coldfire platform. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* clk: validate pointer in __clk_disable()Fengguang Wu2012-07-301-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | clk_get() returns -ENOENT on error and some careless caller might dereference it without error checking: In mxc_rnga_remove(): struct clk *clk = clk_get(&pdev->dev, "rng"); // ... clk_disable(clk); Since it's insane to audit the lots of existing and future clk users, let's add a check in the callee to avoid kernel panic and warn about any buggy user. Cc: Russell King <rmk@arm.linux.org.uk> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Viresh Kumar <viresh.kumar@st.com> Cc: viresh kumar <viresh.linux@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* clk: remove redundant depends on from drivers/KconfigViresh Kumar2012-07-301-1/+0
| | | | | | | | | | | | | | | | | | | menu "Common Clock Framework" has "depends on COMMON_CLK" and so configs defined within menu don't require these "depends on COMMON_CLK again". Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Cc: Wolfram Sang <w.sang@pengutronix.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jeff Garzik <jgarzik@redhat.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Bhupesh Sharma <bhupesh.sharma@st.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Mike Turquette <mturquette@linaro.org> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: viresh kumar <viresh.linux@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'clk-for-linus' of git://git.linaro.org/people/mturquette/linuxLinus Torvalds2012-07-2418-46/+2170
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull common clk framework changes from Michael Turquette: "This includes a small number of core framework improvments, platform ports and new DT bindings." Fix up trivial conflicts in drivers/clk/Makefile * tag 'clk-for-linus' of git://git.linaro.org/people/mturquette/linux: (21 commits) clk: fix compile for OF && !COMMON_CLK clk: fix clk_get on of_clk_get_by_name return check clk: mxs: clk_register_clkdev mx28 usb clocks clk: add highbank clock support dt: add clock binding doc to primecell bindings clk: add DT fixed-clock binding support clk: add DT clock binding support ARM: integrator: convert to common clock clk: add versatile ICST307 driver ARM: integrator: put symbolic bus names on devices ARM: u300: convert to common clock clk: cache parent clocks only for muxes clk: wm831x: Add initial WM831x clock driver clk: Constify struct clk_init_data clk: Add CLK_IS_BASIC flag to identify basic clocks clk: Add support for rate table based dividers clk: Add support for power of two type dividers clk: mxs: imx28: decrease the frequency of ref_io1 for SSP2 and SSP3 clk: mxs: add clkdev lookup for pwm clk: mxs: Fix the GPMI clock name ...
| * clk: fix compile for OF && !COMMON_CLKRob Herring2012-07-191-1/+1
| | | | | | | | | | | | | | | | | | | | With commit 766e6a4ec602d0c107 (clk: add DT clock binding support), compiling with OF && !COMMON_CLK is broken. Reported-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com> Reported-by: Prashant Gaikwad <pgaikwad@nvidia.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * clk: fix clk_get on of_clk_get_by_name return checkShawn Guo2012-07-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The commit 766e6a4 (clk: add DT clock binding support) plugs device tree clk lookup of_clk_get_by_name into clk_get, and fall on non-DT lookup clk_get_sys if DT lookup fails. The return check on of_clk_get_by_name takes (clk != NULL) as a successful DT lookup. But it's not the case. For any system that does not define clk lookup in device tree, ERR_PTR(-ENOENT) will be returned, and consequently, all the client drivers calling clk_get in their probe functions will fail to probe with error code -ENOENT returned. Fix the issue by checking of_clk_get_by_name return with !IS_ERR(clk), and update of_clk_get and of_clk_get_by_name for !CONFIG_OF build correspondingly. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Rob Herring <rob.herring@calxeda.com> Tested-by: Marek Vasut <marex@denx.de> Tested-by: Lauri Hintsala <lauri.hintsala@bluegiga.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * Merge branch 'clk/mxs-for-3.6' of ↵Mike Turquette2012-07-121-0/+4
| |\ | | | | | | | | | git://git.linaro.org/people/shawnguo/linux-2.6 into clk-next
| | * clk: mxs: clk_register_clkdev mx28 usb clocksRichard Zhao2012-07-121-0/+4
| | | | | | | | | | | | | | | | | | Signed-off-by: Richard Zhao <richard.zhao@freescale.com> Tested-by: Subodh Nijsure <snijsure@grid-net.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
| * | clk: add highbank clock supportRob Herring2012-07-112-0/+347
| | | | | | | | | | | | | | | | | | | | | | | | | | | This adds real clock support to Calxeda Highbank SOC using the common clock infrastructure. Signed-off-by: Rob Herring <rob.herring@calxeda.com> [mturquette@linaro.org: fixed up invalid writes to const struct member] Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: add DT fixed-clock binding supportGrant Likely2012-07-111-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for DT "fixed-clock" binding to the common fixed rate clock support. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> [Rob Herring] Rework and move into common clock infrastructure Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: add DT clock binding supportGrant Likely2012-07-112-0/+217
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on work 1st by Ben Herrenschmidt and Jeremy Kerr, then by Grant Likely, this patch adds support to clk_get to allow drivers to retrieve clock data from the device tree. Platforms scan for clocks in DT with of_clk_init and a match table, and the register a provider through of_clk_add_provider. The provider's clk_src_get function will be called when a device references the provider's OF node for a clock reference. v6 (Rob Herring): - Return error values instead of NULL to match clock framework expectations v5 (Rob Herring): - Move from drivers/of into common clock subsystem - Squashed "dt/clock: add a simple provider get function" and "dt/clock: add function to get parent clock name" - Rebase to 3.4-rc1 - Drop CONFIG_OF_CLOCK and just use CONFIG_OF - Add missing EXPORT_SYMBOL to various functions - s/clock-output-name/clock-output-names/ - Define that fixed-clock binding is a single output v4 (Rob Herring): - Rework for common clk subsystem - Add of_clk_get_parent_name function v3: - Clarified documentation v2: - fixed errant ';' causing compile error - Editorial fixes from Shawn Guo - merged in adding lookup to clkdev - changed property names to match established convention. After working with the binding a bit it really made more sense to follow the lead of 'reg', 'gpios' and 'interrupts' by making the input simply 'clocks' & 'clock-names' instead of 'clock-input-*', and to only use clock-output* for the producer nodes. (Sorry Shawn, this will mean you need to change some code, but it should be trivial) - Add ability to inherit clocks from parent nodes by using an empty 'clock-ranges' property. Useful for busses. I could use some feedback on the new property name, 'clock-ranges' doesn't feel right to me. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Reviewed-by: Shawn Guo <shawn.guo@freescale.com> Cc: Sascha Hauer <kernel@pengutronix.de> Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | ARM: integrator: convert to common clockLinus Walleij2012-07-112-0/+112
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This converts the Integrator platform to use common clock and the ICST driver. Since from this point not all ARM reference platforms use the clock, we define CONFIG_PLAT_VERSATILE_CLOCK and select it for all platforms except the Integrator. Open issue: I could not use the .init_early() field of the machine descriptor to initialize the clocks, but had to move them to .init_irq(), so presumably .init_early() is so early that common clock is not up, and .init_machine() is too late since it's needed for the clockevent/clocksource initialization. Any suggestions on how to solve this is very welcome. Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> [mturquette@linaro.org: use 'select' instead of versatile Kconfig] Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | clk: add versatile ICST307 driverLinus Walleij2012-07-114-0/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ICST307 VCO clock has a shared driver in the ARM architecture. This patch provides a wrapper into the common clock framework so we can use the implementation in the ARM architecture without duplicating the code until all ARM platforms using this VCO are moved over. At that point we can merge the driver from the ARM platform into the generic file altogether. Cc: Russell King <linux@arm.linux.org.uk> Cc: Mike Turquette <mturquette@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> [mturquette@linaro.org: removed versatile Kconfig] Signed-off-by: Mike Turquette <mturquette@linaro.org>
| * | Merge branch 'clk/mxs-for-3.6' of ↵Mike Turquette2012-07-112-5/+7
| |\| | | | | | | | | | git://git.linaro.org/people/shawnguo/linux-2.6 into clk-3.6
| | * clk: mxs: imx28: decrease the frequency of ref_io1 for SSP2 and SSP3Lauri Hintsala2012-07-051-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | SSP0 and SSP1 use ref_io0 which has decreased frequency. Expand the frequency fix for ref_io1 to get SSP2 and SSP3 to work. Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
| | * clk: mxs: add clkdev lookup for pwmShawn Guo2012-06-272-0/+2
| | | | | | | | | | | | | | | | | | Add pwm clock lookup for imx23 and imx28 booting from device tree. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
| | * clk: mxs: Fix the GPMI clock nameFabio Estevam2012-06-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | The correct name for the GPMI clock is 'gpmi-nand'. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Marek Vasut <marex@denx.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
| | * clk: mxs: rename the gpmi clock for imx28Huang Shijie2012-06-271-1/+1
| | | | | | | | | | | | | | | | | | | | | rename the clock name from `8000c000.gpmi` to `8000c000.gpmi-nand`. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-28 05:02:39 +0000