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2013-09-10Merge tag 'clk-for-linus-3.12' of git://git.linaro.org/people/mturquette/linuxLinus Torvalds3-29/+54
Pull clock framework changes from Michael Turquette: "The common clk framework changes for 3.12 are dominated by clock driver patches, both new drivers and fixes to existing. A high percentage of these are for Samsung platforms like Exynos. Core framework fixes and some new features like automagical clock re-parenting round out the patches" * tag 'clk-for-linus-3.12' of git://git.linaro.org/people/mturquette/linux: (102 commits) clk: only call get_parent if there is one clk: samsung: exynos5250: Simplify registration of PLL rate tables clk: samsung: exynos4: Register PLL rate tables for Exynos4x12 clk: samsung: exynos4: Register PLL rate tables for Exynos4210 clk: samsung: exynos4: Reorder registration of mout_vpllsrc clk: samsung: pll: Add support for rate configuration of PLL46xx clk: samsung: pll: Use new registration method for PLL46xx clk: samsung: pll: Add support for rate configuration of PLL45xx clk: samsung: pll: Use new registration method for PLL45xx clk: samsung: exynos4: Rename exynos4_plls to exynos4x12_plls clk: samsung: exynos4: Remove checks for DT node clk: samsung: exynos4: Remove unused static clkdev aliases clk: samsung: Modify _get_rate() helper to use __clk_lookup() clk: samsung: exynos4: Use separate aliases for cpufreq related clocks clocksource: samsung_pwm_timer: Get clock from device tree ARM: dts: exynos4: Specify PWM clocks in PWM node pwm: samsung: Update DT bindings documentation to cover clocks clk: Move symbol export to proper location clk: fix new_parent dereference before null check clk: wm831x: Initialise wm831x pointer on init ...
2013-08-29clk: tegra30: Don't wait for PLL_U lock bitTuomas Tynkkynen1-1/+1
The lock bit on PLL_U does not seem to be working correctly and sometimes never gets set when waiting for the PLL to come up. Remove the TEGRA_PLL_USE_LOCK flag to use a constant delay. Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-08-19clk: add CLK_SET_RATE_NO_REPARENT flagJames Hogan3-25/+50
Add a CLK_SET_RATE_NO_REPARENT clock flag, which will prevent muxes being reparented during clk_set_rate. To avoid breaking existing platforms, all callers of clk_register_mux() are adjusted to pass the new flag. Platform maintainers are encouraged to remove the flag if they wish to allow mux reparenting on set_rate. Signed-off-by: James Hogan <james.hogan@imgtec.com> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Mike Turquette <mturquette@linaro.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Haojian Zhuang <haojian.zhuang@linaro.org> Cc: Chao Xie <xiechao.mail@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "Emilio López" <emilio@elopez.com.ar> Cc: Gregory CLEMENT <gregory.clement@free-electrons.com> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Prashant Gaikwad <pgaikwad@nvidia.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Peter De Schrijver <pdeschrijver@nvidia.com> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Andrew Chew <achew@nvidia.com> Cc: Doug Anderson <dianders@chromium.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Paul Walmsley <pwalmsley@nvidia.com> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Thomas Abraham <thomas.abraham@linaro.org> Cc: Tomasz Figa <t.figa@samsung.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: spear-devel@list.st.com Cc: linux-tegra@vger.kernel.org Tested-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Stephen Warren <swarren@nvidia.com> [tegra] Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> [sunxi] Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com> [Zynq] Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-08-12clk: tegra114: add LP1 suspend/resume supportJoseph Lo1-0/+12
When the system suspends to LP1, the CPU clock source is switched to CLK_M (12MHz Oscillator) during suspend/resume flow. The CPU clock source is controlled by the CCLKG_BURST_POLICY register, and hence this register must be restored during LP1 resume. Cc: Mike Turquette <mturquette@linaro.org> Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-08-09clk: tegra30: Fix incorrect placement of __initdataSachin Kamat1-1/+1
__initdata should be placed between the variable name and equal sign for the variable to be placed in the intended section. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-08-09clk: tegra20: Fix incorrect placement of __initdataSachin Kamat1-1/+1
__initdata should be placed between the variable name and equal sign for the variable to be placed in the intended section. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-08-09clk: tegra114: Fix incorrect placement of __initdataSachin Kamat1-1/+1
__initdata should be placed between the variable name and equal sign for the variable to be placed in the intended section. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-07-19clk: tegra: add suspend/resume function for tegra_cpu_car_opsJoseph Lo1-0/+26
Adding suspend/resume function for tegra_cpu_car_ops. We only save and restore the setting of the clock of CoreSight. Other clocks still need to be taken care by clock driver. Cc: Mike Turquette <mturquette@linaro.org> Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-07-03Merge tag 'clk-for-linus-3.11' of git://git.linaro.org/people/mturquette/linuxLinus Torvalds6-181/+472
Pull clock framework updates from Mike Turquette: "The common clock framework changes for 3.11 include new clock drivers across several different platforms and architectures, fixes to existing drivers, a MAINTAINERS file fix and improvements to the basic clock types that allow them to be of use to more platforms than before. Only a few fixes to the core framework are included with most all of the changes landing in the various clock drivers themselves." * tag 'clk-for-linus-3.11' of git://git.linaro.org/people/mturquette/linux: (55 commits) clk: tegra: fix ifdef for tegra_periph_reset_assert inline clk: tegra: provide tegra_periph_reset_assert alternative clk: exynos4: Fix clock aliases for cpufreq related clocks clk: samsung: Add MUX_FA macro to pass flag and alias clk: add support for Rockchip gate clocks clk: vexpress: Make the clock drivers directly available for arm64 clk: vexpress: Use full node name to identify individual clocks clk: tegra: T114: add DFLL DVCO reset control clk: tegra: T114: add DFLL source clocks clk: tegra: T114: add FCPU clock shaper programming, needed by the DFLL clk: gate: add CLK_GATE_HIWORD_MASK clk: divider: add CLK_DIVIDER_HIWORD_MASK flag clk: mux: add CLK_MUX_HIWORD_MASK clk: Always notify whole subtree when reparenting MAINTAINERS: make drivers/clk entry match subdirs clk: honor CLK_GET_RATE_NOCACHE in clk_set_rate clk: use clk_get_rate() for debugfs clk: tegra: Use override bits when needed clk: tegra: override bits for Tegra30 PLLM clk: tegra: override bits for Tegra114 PLLM ...
2013-07-03Merge tag 'soc-for-linus' of ↵Linus Torvalds1-1/+22
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC specific changes from Arnd Bergmann: "These changes are all to SoC-specific code, a total of 33 branches on 17 platforms were pulled into this. Like last time, Renesas sh-mobile is now the platform with the most changes, followed by OMAP and EXYNOS. Two new platforms, TI Keystone and Rockchips RK3xxx are added in this branch, both containing almost no platform specific code at all, since they are using generic subsystem interfaces for clocks, pinctrl, interrupts etc. The device drivers are getting merged through the respective subsystem maintainer trees. One more SoC (u300) is now multiplatform capable and several others (shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving towards that goal with this series but need more work. Also noteworthy is the work on PCI here, which is traditionally part of the SoC specific code. With the changes done by Thomas Petazzoni, we can now more easily have PCI host controller drivers as loadable modules and keep them separate from the platform code in drivers/pci/host. This has already led to the discovery that three platforms (exynos, spear and imx) are actually using an identical PCIe host controller and will be able to share a driver once support for spear and imx is added." * tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (480 commits) ARM: integrator: let pciv3 use mem/premem from device tree ARM: integrator: set local side PCI addresses right ARM: dts: Add pcie controller node for exynos5440-ssdk5440 ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoC ARM: EXYNOS: Enable PCIe support for Exynos5440 pci: Add PCIe driver for Samsung Exynos ARM: OMAP5: voltagedomain data: remove temporary OMAP4 voltage data ARM: keystone: Move CPU bringup code to dedicated asm file ARM: multiplatform: always pick one CPU type ARM: imx: select syscon for IMX6SL ARM: keystone: select ARM_ERRATA_798181 only for SMP ARM: imx: Synertronixx scb9328 needs to select SOC_IMX1 ARM: OMAP2+: AM43x: resolve SMP related build error dmaengine: edma: enable build for AM33XX ARM: edma: Add EDMA crossbar event mux support ARM: edma: Add DT and runtime PM support to the private EDMA API dmaengine: edma: Add TI EDMA device tree binding arm: add basic support for Rockchip RK3066a boards arm: add debug uarts for rockchip rk29xx and rk3xxx series arm: Add basic clocks for Rockchip rk3066a SoCs ...
2013-06-18clk: tegra: T114: add DFLL DVCO reset controlPaul Walmsley2-0/+39
Add DFLL DVCO reset line control functions to the CAR IP block driver. The DVCO present in the DFLL IP block has a separate reset line, exposed via the CAR IP block. This reset line is asserted upon SoC reset. Unless something (such as the DFLL driver) deasserts this line, the DVCO will not oscillate, although reads and writes to the DFLL IP block will complete. Thanks to Aleksandr Frid <afrid@nvidia.com> for identifying this and saving hours of debugging time. Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com> Cc: Aleksandr Frid <afrid@nvidia.com> Cc: Peter De Schrijver <pdeschrijver@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-18clk: tegra: T114: add DFLL source clocksPaul Walmsley1-0/+11
Add the input clocks needed by the DFLL IP blocks. Initialize them to 51MHz (as required by the DFLL GFD) and to use the PLL_P clock source. This patch is a collaboration with Peter De Schrijver <pdeschrijver@nvidia.com>. Thanks to Laxman Dewangan <ldewangan@nvidia.com> for identifying the requirement to keep the DFLL clocks enabled to resolve PWR_I2C timeout issues. Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com> Cc: Peter De Schrijver <pdeschrijver@nvidia.com> Reviewed-by: Andrew Chew <achew@nvidia.com> Cc: Matthew Longnecker <mlongnecker@nvidia.com> Cc: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-18clk: tegra: T114: add FCPU clock shaper programming, needed by the DFLLPaul Walmsley2-0/+122
Add clock functions to initialize, enable, and disable the FCPU clock shapers, based on the FCPU voltage rail state. These will be used by the DFLL clocksource driver code. This version of the patch contains a fix for a problem noticed by Andrew Chew <achew@nvidia.com>, where some of the FINETRIM_R bitfields were incorrectly defined. Based on code originally written by Aleksandr Frid <afrid@nvidia.com>. Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com> Cc: Andrew Chew <achew@nvidia.com> Reviewed-by: Andrew Chew <achew@nvidia.com> Cc: Matthew Longnecker <mlongnecker@nvidia.com> Cc: Aleksandr Frid <afrid@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-16ARM: tegra30: clocks: Fix pciex clock registrationJay Agarwal1-5/+6
Registering pciex as peripheral clock instead of fixed clock as tegra_perih_reset_assert(deassert) api of this clock api gives warning and ultimately does not succeed to assert(deassert) Signed-off-by: Jay Agarwal <jagarwal@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-15Merge tag 'tegra-for-3.11-soc' of ↵Olof Johansson1-1/+22
git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc From Stephen Warren: ARM: tegra: core SoC support enhancements This branch contains fixes and enhancement for core Tegra Soc support: * CPU hotplug support for Tegra114. * Some preliminary work on Tegra114 CPU sleep modes. * Minor fix for EMC table DT parsing. * tag 'tegra-for-3.11-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: ARM: tegra: don't pass CPU ID to tegra_{set,clear}_cpu_in_lp2 ARM: tegra: cpuidle: using IS_ENABLED for multi SoCs management in init func ARM: tegra: hook tegra_tear_down_cpu function in the PM suspend init function ARM: tegra: cpuidle: move the init function behind the suspend init function ARM: tegra: remove ifdef in the tegra_resume ARM: tegra: add cpu_disable for hotplug ARM: tegra114: add CPU hotplug support clk: tegra114: implement wait_for_reset and disable_clock for tegra_cpu_car_ops ARM: tegra114: add power up sequence for warm boot CPU ARM: tegra: make tegra_resume can work for Tegra114 ARM: tegra: skip SCU and PL310 code when CPU is not Cortex-A9 ARM: tegra: add an assembly marco to check Tegra SoC ID ARM: tegra: emc: correction of ram-code parsing from dt Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-12clk: tegra: Use override bits when neededPeter De Schrijver1-33/+49
PLLM has override bits in the PMC. Use those when PLLM_OVERRIDE_ENABLE is set. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-12clk: tegra: override bits for Tegra30 PLLMPeter De Schrijver1-0/+18
Define override bits for Tegra30 PLLM. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-12clk: tegra: override bits for Tegra114 PLLMPeter De Schrijver1-0/+9
Define override bits for Tegra114 PLLM. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org> [mturquette@linaro.org: fixed up trivial merge conflict]
2013-06-12clk: tegra: Add fields for override bitsPeter De Schrijver1-0/+8
PLLM can have override bits in the PMC. Describe those in the PLL parameters. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-12clk: tegra: fix sclk_parentsPeter De Schrijver1-1/+1
Use the correct parents for sclk according to the TRM. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-12clk: tegra: fix pllre initilizationPeter De Schrijver1-2/+1
The PLLRE flags weren't set correctly. Fixed in this patch. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-12clk: tegra: PLL m,n,p init for Tegra114Peter De Schrijver1-0/+77
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-12clk: tegra: allow PLL m,n,p init from SoC filesPeter De Schrijver2-39/+53
The m,n,p fields don't have the same bit offset and width across all PLLs. This patch allows SoC specific files to indicate the offset and width. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-12clk: tegra: pllp_out2 divider is int onlyPeter De Schrijver1-2/+2
The pllp_out2 should be integer only, the fractional bit should always be 0. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-12clk: tegra: pllc and pllxc should use pdiv_mapPeter De Schrijver1-80/+82
The pllc and pllxc code weren't always using the correct pdiv_map to map between the post divider value and the hw p field. This could result in illegal values being programmed in the hw. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-05clk: tegra114: Fix msenc clock registerMikko Perttunen1-1/+1
The msenc clock's register was set to the usb3 clock's register. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-05-31clk: tegra: Use common of_clk_init functionPrashant Gaikwad5-33/+6
Use common of_clk_init() function for clocks initialization. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Reviewed-by: Thierry Reding <thierry.reding@gmail.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-05-31clk: tegra114: correctly output clk_32kAlexandre Courbot1-0/+3
Tegra has a blink timer register that allows to modulate the clk_32k clock before outputting it. Since clk_32k is presented to the kernel as a fixed clock, make sure this register does not tamper with the clock frequency and that clk_32k is outputted as-is, similarly to what is done on t20 and t30. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-05-31clk: tegra: fix clk_out parents listPrashant Gaikwad2-4/+4
Number of parents for clk_out_2 and clk_out_3 was incorrectly set to clk_out1_parents. Even though it did not break anything since the size was same better to fix. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Reviewed-by: Thierry Reding <thierry.reding@gmail.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-05-23clk: tegra114: implement wait_for_reset and disable_clock for tegra_cpu_car_opsJoseph Lo1-1/+22
The conventional CPU hotplug sequence on the other Tegra chips, we will also clock gate the CPU in tegra_cpu_kill() after the CPU was power gated. For Tegra114, the flow controller will clock gate the CPU after the power down sequence. But we still need to implement a empty function for disable_clock to avoid kernel warning message. Signed-off-by: Joseph Lo <josephl@nvidia.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-05-21clk: tegra: add ac97 controller clockLucas Stach1-0/+8
AC97 controller clock is hardwired to pll_a_out0. Signed-off-by: Lucas Stach <dev@lynxeye.de> Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com> Reviewed-by: Prashant Gaikwad <pgaikwad@nvidia.com> Acked-by: Mike Turquette <mturquette@linaro.org> Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-05-21clk: tegra: remove USB from clk init tableLucas Stach1-3/+0
The USB clocks are just clock gates, so no need to set a specific clock. In fact trying to set a specific clock is just a NOP if the requested clockrate is the same as those of the parent (clk_m) or will trigger a WARN_ON() if rates don't match up. As we are not setting a specific rate, nor activating the clocks at init, there is no point in keeping the the usb entries in the clock init table. Signed-off-by: Lucas Stach <dev@lynxeye.de> Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com> Reviewed-by: Prashant Gaikwad <pgaikwad@nvidia.com> Acked-by: Mike Turquette <mturquette@linaro.org> Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-05-04Merge tag 'drivers-for-linus' of ↵Linus Torvalds9-336/+3491
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver changes from Olof Johansson: "This is a rather large set of patches for device drivers that for one reason or another the subsystem maintainer preferred to get merged through the arm-soc tree. There are both new drivers as well as existing drivers that are getting converted from platform-specific code into standalone drivers using the appropriate subsystem specific interfaces. In particular, we can now have pinctrl, clk, clksource and irqchip drivers in one file per driver, without the need to call into platform specific interface, or to get called from platform specific code, as long as all information about the hardware is provided through a device tree. Most of the drivers we touch this time are for clocksource. Since now most of them are part of drivers/clocksource, I expect that we won't have to touch these again from arm-soc and can let the clocksource maintainers take care of these in the future. Another larger part of this series is specific to the exynos platform, which is seeing some significant effort in upstreaming and modernization of its device drivers this time around, which unfortunately is also the cause for the churn and a lot of the merge conflicts. There is one new subsystem that gets merged as part of this series: the reset controller interface, which is a very simple interface for taking devices on the SoC out of reset or back into reset. Patches to use this interface on i.MX follow later in this merge window, and we are going to have other platforms (at least tegra and sirf) get converted in 3.11. This will let us get rid of platform specific callbacks in a number of platform independent device drivers." * tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (256 commits) irqchip: s3c24xx: add missing __init annotations ARM: dts: Disable the RTC by default on exynos5 clk: exynos5250: Fix parent clock for sclk_mmc{0,1,2,3} ARM: exynos: restore mach/regs-clock.h for exynos5 clocksource: exynos_mct: fix build error on non-DT pinctrl: vt8500: wmt: Fix checking return value of pinctrl_register() irqchip: vt8500: Convert arch-vt8500 to new irqchip infrastructure reset: NULL deref on allocation failure reset: Add reset controller API dt: describe base reset signal binding ARM: EXYNOS: Add arm-pmu DT binding for exynos421x ARM: EXYNOS: Add arm-pmu DT binding for exynos5250 ARM: EXYNOS: Enable PMUs for exynos4 irqchip: exynos-combiner: Correct combined IRQs for exynos4 irqchip: exynos-combiner: Add set_irq_affinity function for combiner_irq ARM: EXYNOS: fix compilation error introduced due to common clock migration clk: exynos5250: Fix divider values for sclk_mmc{0,1,2,3} clk: exynos4: export clocks required for fimc-is clk: samsung: Fix compilation error clk: tegra: fix enum tegra114_clk to match binding ...
2013-05-02Merge tag 'multiplatform-for-linus' of ↵Linus Torvalds1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC multiplatform updates from Olof Johansson: "More multiplatform enablement for ARM platforms. The ones converted in this branch are: - bcm2835 - cns3xxx - sirf - nomadik - msx - spear - tegra - ux500 We're getting close to having most of them converted! One of the larger platforms remaining is Samsung Exynos, and there are a bunch of supporting patches in this merge window for it. There was a patch in this branch to a early version of multiplatform conversion, but it ended up being reverted due to need of more bake time. The revert commit is part of the branch since it would have required rebasing multiple dependent branches and they were stable by then" * tag 'multiplatform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (70 commits) mmc: sdhci-s3c: Fix operation on non-single image Samsung platforms clocksource: nomadik-mtu: fix up clocksource/timer Revert "ARM: exynos: enable multiplatform support" ARM: SPEAr13xx: Fix typo "ARCH_HAVE_CPUFREQ" ARM: exynos: enable multiplatform support rtc: s3c: make header file local mtd: onenand/samsung: make regs-onenand.h file local thermal/exynos: remove unnecessary header inclusions mmc: sdhci-s3c: remove platform dependencies ARM: samsung: move mfc device definition to s5p-dev-mfc.c ARM: exynos: move debug-macro.S to include/debug/ ARM: exynos: prepare for sparse IRQ ARM: exynos: introduce EXYNOS_ATAGS symbol ARM: tegra: build assembly files with -march=armv7-a ARM: Push selects for TWD/SCU into machine entries ARM: ux500: build hotplug.o for ARMv7-a ARM: ux500: move to multiplatform ARM: ux500: make remaining headers local ARM: ux500: make irqs.h local to platform ARM: ux500: get rid of <mach/[hardware|db8500-regs].h> ...
2013-05-02Merge tag 'fixes-nc-for-linus' of ↵Linus Torvalds1-34/+2
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC non-critical fixes from Olof Johansson: "Here is a collection of fixes (and some intermixed cleanups) that were considered less important and thus not included in the later parts of the 3.9-rc cycle. It's a bit all over the map, contents wise. A series of ux500 fixes and cleanups, a bunch of various fixes for OMAP and tegra, and some for Freescale i.MX and even Qualcomm MSM. Note that there's also a patch on this branch to globally turn off -Wmaybe-uninitialized when building with -Os. It's been posted several times by Arnd and no dissent was raised, but nobody seemed interested to pick it up. So here it is, as the topmost patch." * tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (70 commits) Turn off -Wmaybe-uninitialized when building with -Os ARM: orion5x: include linux/cpu.h ARM: tegra: call cpu_do_idle from C code ARM: u300: fix ages old copy/paste bug ARM: OMAP2+: add dependencies on ARCH_MULTI_V6/V7 ARM: tegra: solve adr range issue with THUMB2_KERNEL enabled ARM: tegra: fix relocation truncated error when THUMB2_KERNEL enabled ARM: tegra: fix build error when THUMB2_KERNEL enabled ARM: msm: Fix uncompess.h tx underrun check ARM: vexpress: Remove A9 PMU compatible values for non-A9 platforms ARM: cpuimx27 and mbimx27: prepend CONFIG_ to Kconfig macro ARM: OMAP2+: fix typo "CONFIG_BRIDGE_DVFS" ARM: OMAP1: remove "config MACH_OMAP_HTCWIZARD" ARM: mach-imx: mach-imx6q: Fix sparse warnings ARM: mach-imx: src: Include "common.h ARM: mach-imx: gpc: Include "common.h" ARM: mach-imx: avic: Staticize *avic_base ARM: mach-imx: tzic: Staticize *tzic_base ARM: mach-imx: clk: Include "clk.h" ARM: mach-imx: clk-busy: Staticize clk_busy_mux_ops ...
2013-04-30Merge tag 'clk-for-linus-3.10' of git://git.linaro.org/people/mturquette/linuxLinus Torvalds1-8/+19
Pull clock framework update from Michael Turquette: "The common clock framework changes for 3.10 include many fixes for existing platforms, as well as adoption of the framework by new platforms and devices. Some long-needed fixes to the core framework are here as well as new features such as improved initialization of clocks from DT as well as framework reentrancy for nested clock operations." * tag 'clk-for-linus-3.10' of git://git.linaro.org/people/mturquette/linux: (44 commits) clk: add clk_ignore_unused option to keep boot clocks on clk: ux500: fix mismatched types clk: vexpress: Add separate SP810 driver clk: si5351: make clk-si5351 depend on CONFIG_OF clk: export __clk_get_flags for modular clock providers clk: vt8500: Missing breaks in vtwm_pll_round_rate/_set_rate. clk: sunxi: Unify oscillator clock clk: composite: allow fixed rates & fixed dividers clk: composite: rename 'div' references to 'rate' clk: add si5351 i2c common clock driver clk: add device tree fixed-factor-clock binding support clk: Properly handle notifier return values clk: ux500: abx500: Define clock tree for ab850x clk: ux500: Add support for sysctrl clocks clk: mvebu: Fix valid value range checking for cpu_freq_select clk: Fixup locking issues for clk_set_parent clk: Fixup errorhandling for clk_set_parent clk: Restructure code for __clk_reparent clk: sunxi: drop an unnecesary kmalloc clk: sunxi: drop CLK_IGNORE_UNUSED ...
2013-04-09Merge tag 'tegra-for-3.10-multiplatform' of ↵Arnd Bergmann1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/multiplatform From Stephen Warren <swarren@wwwdotorg.org>: ARM: tegra: multi-platform conversion This branch converts Tegra to support multi-platform/single-zImage. One header is made accessible to drivers. The earlyprintk implementation is moved to the multi-platform location. Some Kconfig changes are made to enable multi-platform. Some dead files are deleted. The APIs exposed in the now-global tegra-powergate.h should be replaced with standard reset and power domain APIs in the future. This branch is based on (part of) the previous soc pull request. * tag 'tegra-for-3.10-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: ARM: tegra: convert to multi-platform ARM: tegra: move <mach/powergate.h> to <linux/tegra-powergate.h> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-04-09Merge branch 'tegra/soc' into next/multiplatformArnd Bergmann1-34/+2
This is a dependency for the tegra multiplatform series. Conflicts: drivers/clocksource/tegra20_timer.c Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-04-09Merge tag 'tegra-for-3.10-fixes' of ↵Arnd Bergmann1-34/+2
git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/fixes-non-critical From Stephen Warren <swarren@wwwdotorg.org>: ARM: tegra: minor fixes This branch contains a variety of small build and run-time fixes that weren't important enough for 3.9. * Enable CPU errata WARs in secondary reset handler as a preparation for multi-platform support, and a related fix. * Don't touch DBLGAR in reset/resume handlers, so enable the code to run on A15 cores. * Minor build fixes. * A fix to the Tegra clock driver. * Some error-handling fixes. This branch is based on the previous fixes-for-mmc pull request. * tag 'tegra-for-3.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: ARM: tegra: powergate: Don't error out if new state == old state ARM: tegra: Export tegra_powergate_sequence_power_up() memory: tegra30: Fix build error w/o PM ARM: tegra: fix ignored return value of regulator_enable ARM: tegra: fix the logical detection of power on sequence of warm boot CPUs ARM: tegra: Fix unchecked return value ARM: tegra: don't unlock MMIO access to DBGLAR clk: tegra: No 7.1 super clk dividers on Tegra20 ARM: tegra: remove save/restore of CPU diag register ARM: tegra: add CPU errata WARs to Tegra reset handler ARM: dts: tegra: fix the activate polarity of cd-gpio in mmc host Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-04-05clk: tegra: fix enum tegra114_clk to match bindingStephen Warren1-1/+1
A gap exists in the binding's clock ID definitions. Fix the clock driver to be consistent. This allows pclk to be looked up through device tree and prevents: ERROR: could not get clock /pmc:pclk(0) Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-04-05clk: tegra: Remove forced clk_enable of uartdPeter De Schrijver1-1/+1
The UART driver enables the console uart clock, so we don't need to do that anymore in this file. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-04-05clk: tegra: devicetree match for nvidia,tegra114-carPeter De Schrijver2-0/+7
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-04-05clk: tegra: Implement clocks for Tegra114Peter De Schrijver2-0/+2086
Implement clocks for Tegra114. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-04-05clk: tegra: Workaround for Tegra114 MSENC problemPeter De Schrijver2-0/+11
Workaround a hardware bug in MSENC during clock enable. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-04-05clk: tegra: Add flags to tegra_clk_periph()Peter De Schrijver4-10/+14
We will need some tegra peripheral clocks with the CLK_IGNORE_UNUSED flag, most notably mselect, which is a bridge between AXI and most peripherals. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-04-05clk: tegra: Add new fields and PLL types for Tegra114Peter De Schrijver2-1/+888
Tegra114 introduces new PLL types. This requires new clocktypes as well as some new fields in the pll structure. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-04-05clk: tegra: move from a lock bit idx to a lock maskPeter De Schrijver4-25/+25
PLLC2 and PLLC3 on Tegra114 have separate phaselock and frequencylock bits. So switch to a lock mask to be able to test both at the same time. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-04-05clk: tegra: Add PLL post divider tablePeter De Schrijver4-6/+59
Some PLLs in Tegra114 don't use a power of 2 mapping for the post divider. Introduce a table based approach and switch PLLU to it. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-04-05clk: tegra: introduce TEGRA_PLL_HAS_LOCK_ENABLEPeter De Schrijver2-0/+7
Tegra114 PLLC2 and PLLC3 don't have a lock enable bit. The lock bits are always functional. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-04-05clk: tegra: Add TEGRA_PLL_BYPASS flagPeter De Schrijver2-4/+10
Not all PLLs in Tegra114 have a bypass bit. Adapt the common code to only use this bit when available. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>