aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap2/clock.h
Commit message (Collapse)AuthorAge
* ARM: OMAP2+: clock: add low-level support for regmapTero Kristo2015-03-31
| | | | | | | | | Some of the TI clock providers will be converted to use syscon, thus low-level regmap support is needed for the clock drivers also. This patch adds this support, which can be enabled for individual drivers in later patches. Signed-off-by: Tero Kristo <t-kristo@ti.com>
* ARM: OMAP2+: clock: move clock provider infrastructure to clock driverTero Kristo2015-03-27
| | | | | | | | | | Splits the clock provider init out of the PRM driver and moves it to clock driver. This is needed so that once the PRCM drivers are separated, they can logically just access the clock driver not needing to go through common PRM code. This would be wrong in the case of control module for example. Signed-off-by: Tero Kristo <t-kristo@ti.com>
* Merge tag 'clk-for-linus-3.20' of ↵Linus Torvalds2015-02-21
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org/people/mike.turquette/linux Pull clock framework updates from Mike Turquette: "The clock framework changes contain the usual driver additions, enhancements and fixes mostly for ARM32, ARM64, MIPS and Power-based devices. Additionally the framework core underwent a bit of surgery with two major changes: - The boundary between the clock core and clock providers (e.g clock drivers) is now more well defined with dedicated provider helper functions. struct clk no longer maps 1:1 with the hardware clock but is a true per-user cookie which helps us tracker users of hardware clocks and debug bad behavior. - The addition of rate constraints for clocks. Rate ranges are now supported which are analogous to the voltage ranges in the regulator framework. Unfortunately these changes to the core created some breakeage. We think we fixed it all up but for this reason there are lots of last minute commits trying to undo the damage" * tag 'clk-for-linus-3.20' of git://git.linaro.org/people/mike.turquette/linux: (113 commits) clk: Only recalculate the rate if needed Revert "clk: mxs: Fix invalid 32-bit access to frac registers" clk: qoriq: Add support for the platform PLL powerpc/corenet: Enable CLK_QORIQ clk: Replace explicit clk assignment with __clk_hw_set_clk clk: Add __clk_hw_set_clk helper function clk: Don't dereference parent clock if is NULL MIPS: Alchemy: Remove bogus args from alchemy_clk_fgcs_detr clkdev: Always allocate a struct clk and call __clk_get() w/ CCF clk: shmobile: div6: Avoid division by zero in .round_rate() clk: mxs: Fix invalid 32-bit access to frac registers clk: omap: compile legacy omap3 clocks conditionally clkdev: Export clk_register_clkdev clk: Add rate constraints to clocks clk: remove clk-private.h pci: xgene: do not use clk-private.h arm: omap2+ remove dead clock code clk: Make clk API return per-user struct clk instances clk: tegra: Define PLLD_DSI and remove dsia(b)_mux clk: tegra: Add support for the Tegra132 CAR IP block ...
| * arm: omap2+ remove dead clock codeMichael Turquette2015-02-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove omap_clocks_register and dummy_ck. The former is not used anymore now that the statically defined clk stuctures are replaced with proper descriptors and registered with the framework. The dummy clock in arch/arm/mach-omap2 is made redundant by the OMAP3+ clock data that migrated to drivers/clk. An additional benefit to this clean-up is removing the references to clk-private.h which will be removed. Cc: Paul Walmsley <paul@pwsan.com> Cc: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
| * clk: Make clk API return per-user struct clk instancesTomeu Vizoso2015-02-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Moves clock state to struct clk_core, but takes care to change as little API as possible. struct clk_hw still has a pointer to a struct clk, which is the implementation's per-user clk instance, for backwards compatibility. The struct clk that clk_get_parent() returns isn't owned by the caller, but by the clock implementation, so the former shouldn't call clk_put() on it. Because some boards in mach-omap2 still register clocks statically, their clock registration had to be updated to take into account that the clock information is stored in struct clk_core now. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Michael Turquette <mturquette@linaro.org> [mturquette@linaro.org: adapted clk_has_parent to struct clk_core applied OMAP3+ DPLL fix from Tero & Tony]
* | ARM: OMAP2+: dpll44xx.c: Remove unused functionRickard Strandqvist2015-01-07
|/ | | | | | | | | Remove the function omap4_dpllmx_gatectrl_read() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Tony Lindgren <tony@atomide.com>
* Merge branch 'omap-for-v3.19/fixes-not-urgent' into omap-for-v3.19/fixesTony Lindgren2014-12-10
|\
| * ARM: OMAP2+: clock: remove unused function prototypeJohan Hovold2014-11-12
| | | | | | | | | | | | | | | | | | Remove unused function prototype that was left by commit 149c09d3a61d ("ARM: AM33xx: remove old clock data and link in new clock init code") which removed the definition. Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
* | ARM: OMAP3: clock: use clk_features flags for omap3 DPLL4 checksTero Kristo2014-11-13
|/ | | | | | | | | | DPLL4 can't be reprogrammed on OMAP3430 ES1.0 due to hardware limitation. Currently, the code does runtime omap_rev() check to see the chip it is being executed on, instead, change this to use clk_features flags. This avoids need for runtime omap_rev() checks. Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* Merge tag 'dt-for-3.17' of ↵Linus Torvalds2014-08-08
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC device-tree changes from Olof Johansson: "Unlike the board branch, this keeps having large sets of changes for every release, but that's quite expected and is so far working well. Most of this is plumbing for various device bindings and new platforms, but there's also a bit of cleanup and code removal for things that are moved from platform code to DT contents (some OMAP clock code in particular). There's also a pinctrl driver for tegra here (appropriately acked), that's introduced this way to make it more bisectable. I'm happy to say that there were no conflicts at all with this branch this release, which means that changes are flowing through our tree as expected instead of merged through driver maintainers (or at least not done with conflicts). There are several new boards added, and a couple of SoCs. In no particular order: - Rockchip RK3288 SoC support, including DTS for a dev board that they have seeded with some community developers. - Better support for Hardkernel Exynos4-based ODROID boards. - CCF conversions (and dtsi contents) for several Renesas platforms. - Gumstix Pepper (TI AM335x) board support - TI eval board support for AM437x - Allwinner A23 SoC, very similar to existing ones which mostly has resulted in DT changes for support. Also includes support for an Ippo tablet with the chipset. - Allwinner A31 Hummingbird board support, not to be confused with the SolidRun i.MX-based Hummingboard. - Tegra30 Apalis board support" * tag 'dt-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (334 commits) ARM: dts: Enable USB host0 (EHCI) on rk3288-evb ARM: dts: add rk3288 ehci usb devices ARM: dts: Turn on USB host vbus on rk3288-evb ARM: tegra: apalis t30: fix device tree compatible node ARM: tegra: paz00: Fix some indentation inconsistencies ARM: zynq: DT: Clarify Xilinx Zynq platform ARM: dts: rockchip: add watchdog node ARM: dts: rockchip: remove pinctrl setting from radxarock uart2 ARM: dts: Add missing pinctrl for uart0/1 for exynos3250 ARM: dts: Remove duplicate 'interrput-parent' property for exynos3250 ARM: dts: Add TMU dt node to monitor the temperature for exynos3250 ARM: dts: Specify MAX77686 pmic interrupt for exynos5250-smdk5250 ARM: dts: cypress,cyapa trackpad is exynos5250-Snow only ARM: dts: max77686 is exynos5250-snow only ARM: zynq: DT: Remove DMA from board DTs ARM: zynq: DT: Add CAN node ARM: EXYNOS: Add exynos5260 PMU compatible string to DT match table ARM: dts: Add PMU DT node for exynos5260 SoC ARM: EXYNOS: Add support for Exynos5410 PMU ARM: dts: Add PMU to exynos5410 ...
| * ARM: OMAP2420: clock: get rid of fixed-div property useTero Kristo2014-07-02
| | | | | | | | | | | | Cleans up the code a bit and is useful for clock data DT conversion. Signed-off-by: Tero Kristo <t-kristo@ti.com>
* | ARM: OMAP2+: clock/interface: add a clk_features definition for idlest valueTero Kristo2014-07-15
| | | | | | | | | | | | | | | | | | | | Helps to get rid of some runtime cpu_is_x checks. This also allows eventual migration of the code under clock driver. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reviewed-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* | ARM: OMAP2+: clock/dpll: add jitter correction behind clk_featuresTero Kristo2014-07-15
| | | | | | | | | | | | | | | | | | | | | | | | Currently DPLL code uses runtime cpu_is_343x checks to see if the DPLL has freqsel fields in its control register or not. Instead, add a new flag to the clk_features.flags and use this during runtime. Allows eventual move of the DPLL code under clock driver. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reviewed-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* | ARM: OMAP2+: clock/dpll: convert bypass check to use clk_featuresTero Kristo2014-07-15
| | | | | | | | | | | | | | | | | | | | | | | | OMAP2 DPLL code for checking whether DPLL is in bypass mode now uses clk_features data provided during boot. This avoids the need to use cpu_is_X type checks runtime, and allows us to eventually move the clock code under the clock driver. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reviewed-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* | ARM: OMAP2+: clock: add fint values to the ti_clk_features structTero Kristo2014-07-15
| | | | | | | | | | | | | | | | | | | | | | These are SoC specific and get their init values based on the SoC type. Previously the values were hard coded within the DPLL clock code, but having them inside the clock features avoids runtime cpu_is_X type checks. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reviewed-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* | ARM: OMAP2+: clock: introduce ti_clk_features flagsTero Kristo2014-07-15
| | | | | | | | | | | | | | | | | | | | This shall be used to replace the cpu type checks around the clock code. Actual bit values will be introduced in patches later. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reviewed-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* | ARM: OMAP4+: clock: remove DEFINE_CLK_OMAP_HSDIVIDER macroTero Kristo2014-07-11
|/ | | | | | | | | This clock type declaration is no longer used as all omap4+ SoC clock data has been moved to DT, thus remove it. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reviewed-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* CLK: TI: interface: add support for omap2430 specific interface clockTero Kristo2014-05-28
| | | | | | | OMAP2430 I2CHS modules require specific hardware ops to be used, so added a new compatible string for this. Signed-off-by: Tero Kristo <t-kristo@ti.com>
* CLK: TI: APLL: add support for omap2 apllsTero Kristo2014-05-28
| | | | | | | This patch adds support for omap2 type aplls, which have gating and autoidle functionality. Signed-off-by: Tero Kristo <t-kristo@ti.com>
* CLK: TI: DPLL: add support for omap2 core dpllTero Kristo2014-05-28
| | | | | | | | OMAP2 has slightly different DPLL compared to later OMAP generations. This patch adds support for the ti,omap2-dpll-core-clock and also adds the bindings documentation. Signed-off-by: Tero Kristo <t-kristo@ti.com>
* ARM: OMAP2+: clock: add support for indexed memmapsTero Kristo2014-01-17
| | | | | | | | | | | Using indexed memmaps is required for isolating the actual memory access from the clock code. Now, the driver providing the support for the clock IP block provides the low level routines for reading/writing clock registers also. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* CLK: TI: add interface clock support for OMAP3Tero Kristo2014-01-17
| | | | | | | | | | OMAP3 has interface clocks in addition to functional clocks, which require special handling for the autoidle and idle status register offsets mainly. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* CLK: TI: add am33xx clock init fileTero Kristo2014-01-17
| | | | | | | | | | | | | clk-33xx.c now contains the clock init functionality for am33xx, including DT clock registration and adding of static clkdev entries. This patch also moves the omap2_clk_enable_init_clocks declaration to the driver include, as this is needed by the am33xx clock init code. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Nishanth Menon <nm@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* CLK: TI: add omap4 clock init fileTero Kristo2014-01-17
| | | | | | | | | | clk-44xx.c now contains the clock init functionality for omap4, including DT clock registration and adding of static clkdev entries. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Nishanth Menon <nm@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* clk: ti: add composite clock supportTero Kristo2014-01-17
| | | | | | | | | | This is a multipurpose clock node, which contains support for multiple sub-clocks. Uses basic composite clock type to implement the actual functionality, and TI specific gate, mux and divider clocks. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* CLK: TI: Add DPLL clock supportTero Kristo2014-01-17
| | | | | | | | | The OMAP clock driver now supports DPLL clock type. This patch also adds support for DT DPLL nodes. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* ARM: OMAP3: clock: add API to enable/disable autoidle for a single clockTero Kristo2013-10-19
| | | | | | | | | Some drivers require direct access to the autoidle functionality of the interface clocks. Added clock APIs for these, so that the drivers do not need to access CM registers directly. Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP2+: clock data: Remove CK_* flagsJ Keerthy2013-03-18
| | | | | | | | | | | | | | | | The patch removes all the CK_* which were used to identify the family of processors for which the individual clocks belonged to. Instead now separate lists are created based on the family of processors. Boot Tested on: OMAP4430, OMAP4460, Beagle-board, AM33X boards, OMAP2 boards. Signed-off-by: J Keerthy <j-keerthy@ti.com> Tested-by: Vaibhav Bedia <vaibhav.bedia@ti.com> Tested-by: Jon Hunter <jon-hunter@ti.com> Cc: Paul Walmsley <paul@pwsan.com> [paul@pwsan.com: changed omap_clock_register_links() to omap_clocks_register(); updated to apply] Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP2+: clock data: add DEFINE_STRUCT_CLK_FLAGS helperAfzal Mohammed2013-01-31
| | | | | | | | | DEFINE_STRUCT_CLK does not have the capability to set flags, define DEFINE_STRUCT_CLK_FLAGS to handle flags. This is needed to add SET_RATE_PARENT flag in statically defined lcd clock in am335x. Signed-off-by: Afzal Mohammed <afzal@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP4: Enhance support for DPLLs with 4X multiplierJon Hunter2012-12-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On OMAP4 devices, the ABE DPLL has an internal 4X multiplier that can be enabled or disabled in addition to the standard configurable multiplier (M) for OMAP DPLLs. When configuring the ABE DPLL the 4X multiplier is accounted for by checking to see whether it is enabled or not. However, when calculating a new rate we only check to see if the rate can be achieved with the current setting for the 4X multiplier. Enhance the round_rate() function for such DPLLs to see if the rate can be achieved with the 4X multiplier if it cannot be achieved without the 4X multiplier. This change is necessary, because when using the 32kHz clock as the source clock for the ABE DPLL, the default DPLL frequency for the ABE DPLL cannot be achieved without enabling the 4X multiplier. When using the 32kHz clock as the source clock for the ABE DPLL and attempting to lock the DPLL to 98.304MHz (default frequency), it was found that the DPLL would fail to lock if the low-power mode for the DPLL was not enabled. From reviewing boot-loader settings that configure the ABE DPLL it was found that the low-power mode is enabled when using the 32kHz clock source, however, the documentation for OMAP does not state that this is a requirement. Therefore, introduce a new function for OMAP4 devices to see if low-power mode can be enabled when calculating a new rate to ensure the DPLL will lock. New variables for the last calculated 4X multiplier and low-power setting have been added to the dpll data structure as well as variables defining the bit mask for enabling these features via the DPLL's control_reg. It is possible that we could eliminate these bit masks from the dpll data structure as these bit masks are not unique to OMAP4, if it is preferred. The function omap3_noncore_program_dpll() has been updated to avoid passing the calculated values for the multiplier (M) and divider (N) as these are stored in the clk structure. Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP2+: clock: Cleanup !CONFIG_COMMON_CLK partsMike Turquette2012-11-12
| | | | | | | | | | Clean all #ifdef's added to common clock code. This code is no longer needed due to migration to the common clock framework. Signed-off-by: Mike Turquette <mturquette@ti.com> [paul@pwsan.com: clean up new ifdefs added in clockdomain.c] Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP3: clock: Cleanup !CONFIG_COMMON_CLK partsRajendra Nayak2012-11-12
| | | | | | | | | | Clean all #ifdef's added to OMAP3 clock code to make it COMMON clk ready, not that CONFIG_COMMON_CLK is enabled. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Mike Turquette <mturquette@ti.com> [paul@pwsan.com: remove some ifdefs in mach-omap2/io.c] Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP4: clock: Add 44xx data using common struct clkRajendra Nayak2012-11-12
| | | | | | | | | | | | | | | | | | | | This patch is output from updated omap hw data autogeneration scripts mostly contributed by Mike Turquette, with some later fixes from me. All data is added into a new cclock44xx_data.c file which will be switched with clock44xx_data.c file in a later patch. Signed-off-by: Rajendra Nayak <rnayak@ti.com> [paul@pwsan.com: replace omap2_init_clksel_parent() with omap2_clksel_find_parent_index(); reflowed macros; updated DEFINE_STRUCT_CLK_HW_OMAP macro to include clkdm_name; use macros for clksel mux+gate clocks; many other fixes] [mturquette@ti.com: converted DPLL outputs to HSDIVIDER macro; trace_clk_div_ck has clkdm ops] Signed-off-by: Mike Turquette <mturquette@ti.com> [paul@pwsan.com: fixed the omap-gpmc.fck alias per commit a2e5b90b; fixed several checkpatch issues; moved the dpll3xxx.c clockdomain modifications to another patch] Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP2+: clock: add OMAP CCF convenience macros to mach-omap2/clock.hPaul Walmsley2012-11-12
| | | | | | | | | | | | | | | | Define four convenience macros to be used in the upcoming OMAP2+ common clock framework port. Although the use of these macros will make the data somewhat more difficult to read, they significantly reduce the number of lines in the output patch data. Most of these were created by Rajendra Nayak and Mike Turquette, as far as I know. Signed-off-by: Paul Walmsley <paul@pwsan.com> [mturquette@ti.com: added DEFINE_CLK_OMAP_HSDIVIDER macro] Signed-off-by: Mike Turquette <mturquette@ti.com> Cc: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP: clock: Define a function to enable clocks at initRajendra Nayak2012-11-12
| | | | | | | | | Platform code can use omap2_clk_enable_init_clocks() to enable a list of clocks that are needed to be enabled at init. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Mike Turquette <mturquette@ti.com> [paul@pwsan.com: added kerneldoc to non-trivial new function] Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP: clock: list all clk_hw_omap clks to enable/disable autoidleRajendra Nayak2012-11-12
| | | | | | | | | | | | Platforms can call omap2_init_clk_hw_omap_clocks() to register a clock using clk_hw_omap. omap2_clk_enable_autoidle_all() and omap2_clk_disable_autoidle_all() can then be used to run through all the clocks which support autoidle to enable/disable them. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Mike Turquette <mturquette@ti.com> [paul@pwsan.com: added kerneldoc on non-trivial new functions] Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP3: clock: Convert to common clkRajendra Nayak2012-11-12
| | | | | | | | | | | Convert all OMAP3 specific platform files to use COMMON clk and keep all the changes under the CONFIG_COMMON_CLK macro check so it does not break any existing code. At a later point switch to COMMON clk and get rid of all old/legacy code. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Mike Turquette <mturquette@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP4: clock: Convert to common clkMike Turquette2012-11-12
| | | | | | | | | | | | | | | | | | | | | | | | | Convert all OMAP4 specific platform files to use COMMON clk and keep all the changes under the CONFIG_COMMON_CLK macro check so it does not break any existing code. At a later point switch to COMMON clk and get rid of all old/legacy code. This converts all apis which will be called directly from COMMON clk to take a struct clk_hw parameter, and all the internal platform apis to take a struct clk_hw_omap parameter. Changes are based off the original patch from Mike Turquette. Signed-off-by: Rajendra Nayak <rnayak@ti.com> [paul@pwsan.com: created new omap2_clksel_find_parent_index() rather than modifying omap2_init_clksel_parent(); moved clkhwops_iclk_wait to clkt_iclk.c to fix OMAP4-only builds; added clk-provider.h include to clock.h to try to fix some 3430-builds] [mturquette@ti.com: squash patch for omap2_clkops_{en,dis}able_clkdm; omap2_dflt_clk_is_enabled should not enable clocks] Signed-off-by: Mike Turquette <mturquette@ti.com> [paul@pwsan.com: fix compiler warning; update to apply; added kerneldoc on non-trivial new functions; added the dpll3xxx clockdomain modifications] Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP: clock: Nuke plat/clock.c & reuse struct clk as clk_hw_omapRajendra Nayak2012-11-12
| | | | | | | | | | | | | | | | | plat/clock.c which has most of usecounting/locking infrastructure will be used only for OMAP1 until that is moved to use COMMON clk. reuse most of what plat/clock.h has while we move to common clk, and move most of what 'struct clk' was as 'struct clk_hw_omap' which will then be used to define platform specific parameters. All usecounting/locking related variables from 'struct clk' are dropped as they will not be used with 'struct clk_hw_omap'. Based on the original changes from Mike Turquette. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Mike Turquette <mturquette@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP2+: board files: use SoC-specific system restart functionsPaul Walmsley2012-11-08
| | | | | | | | | | | | Modify the board files to use the SoC-specific system restart functions. At this point it's possible to remove omap_prcm_restart() from mach-omap2/prcm.c. While removing the prototypes for the now-unused restart functions, clean up a few more obsolete prototypes in mach-omap2/clock.h. Signed-off-by: Paul Walmsley <paul@pwsan.com> Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
* ARM: OMAP: clock: split plat/clkdev_omap.h into OMAP1/2 filesPaul Walmsley2012-10-18
| | | | | | | | | To facilitate the ARM single image work, split arch/arm/plat-omap/include/plat/clkdev_omap.h into the arch/arm/mach-omap1/clock.h and arch/arm/mach-omap2/clock.h files. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP: remove plat/clock.hPaul Walmsley2012-10-18
| | | | | | | | | | | Remove arch/arm/plat-omap/include/plat/clock.h by merging it into arch/arm/mach-omap1/clock.h and arch/arm/mach-omap2/clock.h. The goal here is to facilitate ARM single image kernels by removing includes via the "plat/" symlink. Signed-off-by: Paul Walmsley <paul@pwsan.com> [tony@atomide.com: fixed to remove duplicate clock.h includes] Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP3+: clock33xx: Add AM33XX clock tree dataVaibhav Hiremath2012-06-29
| | | | | | | | | | | | | | | | | | | | | | | | AM33XX clock implementation is different than any existing OMAP family of devices. Although DPLL module is similar to OMAP4 device, but the usage is very much different than OMAP4. AM33XX has different peripheral set and each module gets integrated to the clock framework differently than OMAP family of devices. This patch adds full Clock tree data for AM33XX family of devices and also integrates it into existing OMAP framework. Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Afzal Mohammed <afzal@ti.com> Signed-off-by: Vaibhav Bedia <vaibhav.bedia@ti.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Rajendra Nayak <rnayak@ti.com> CC: Tony Lindgren <tony@atomide.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com> [paul@pwsan.com: updated to apply; changed 'soc_is_am33xx' to 'cpu_is_am33xx' to match usage in Tony's current am33xx branch] Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP3+: clock: Move common clksel_rate & clock data to common filePaul Walmsley2012-06-26
| | | | | | | | | | | | OMAP3, OMAP4 and AM33xx share some common data like, clksel_rate oscillator clock input (Virtual clock nodes), required for clock tree; so move common data to common data file so that it can be reused. [hvaibhav@ti.com: Created separate commit from Paul's developement branch] Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP: clock: cleanup CPUfreq leftovers, fix build errorsKevin Hilman2012-04-14
| | | | | | | | | | | | | | | | | | | Now that we have OPP layer, and OMAP CPUfreq driver is using it, we no longer need/use the clock framework code for filling up CPUfreq tables. Remove it. Removing this code also eliminates build errors when CPU_FREQ_TABLE support is not enabled. Thanks to Russell King for pointing out the parts I missed under plat-omap in the original version and also pointing out the build errors when CPUFREQ_TABLE support was not enabled. Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Kevin Hilman <khilman@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Olof Johansson <olof@lixom.net>
* ARM: OMAP: am33xx: Update common omap platform filesAfzal Mohammed2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | This patch updates the common platform files with AM335X device support (AM33XX family). The approach taken in this patch is, AM33XX device will be considered as OMAP3 variant, and a separate SoC class created for AM33XX family of devices with a subclass type for AM335X device, which is newly added device in the family. This means, cpu_is_omap34xx(), cpu_is_am33xx() and cpu_is_am335x() checks will return success on AM335X device. A kernel config option CONFIG_SOC_OMAPAM33XX is added under OMAP3 to include support for AM33XX build. Also, cpu_mask and RATE_IN_XXX flags have crossed 8 bit hence struct clksel_rate.flags, struct prcm_config.flags and cpu_mask are changed to u16 from u8. Signed-off-by: Afzal Mohammed <afzal@ti.com> Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Cc: Hemant Pedanekar <hemantp@ti.com> [tony@atomide.com: left out CK_AM33XX for now] Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP4: clock: round_rate and recalc functions for DPLL_ABEMike Turquette2011-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | OMAP4 DPLL_ABE can enable a 4X multipler on top of the normal MN multipler and divider. This is achieved by setting CM_CLKMODE_DPLL_ABE.DPLL_REGM4XEN bit in CKGEN module of CM1. From the OMAP4 TRM: Fdpll = Fref x 2 x (4 x M/(N+1)) in case REGM4XEN bit field is set (only applicable to DPLL_ABE). Add new round_rate() and recalc() functions for OMAP4, that check the setting of REGM4XEN bit and handle this appropriately. The new functions are a simple wrapper on top of the existing omap2_dpll_round_rate() and omap2_dpll_get_rate() functions to handle the REGM4XEN bit. The REGM4XEN bit is only implemented for the ABE DPLL on OMAP4 and so only dpll_abe_ck uses omap4_dpll_regm4xen_round_rate() and omap4_dpll_regm4xen_recalc() functions. Signed-off-by: Mike Turquette <mturquette@ti.com> Tested-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Jon Hunter <jon-hunter@ti.com> [paul@pwsan.com: fixed attempt to return a negative from a fn returning unsigned; pass along errors from omap2_dpll_round_rate(); added documentation; added Jon's S-o-b] Signed-off-by: Paul Walmsley <paul@pwsan.com>
* OMAP2+: clock: allow per-SoC clock init code to prevent clockdomain calls ↵Paul Walmsley2011-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | from clock code The OMAP2/3 clock code was written to notify the clockdomain code when the first clock in a clockdomain is enabled and when the last enabled clock in a clockdomain is disabled. OMAP4 requires a different approach: the hwmod code needs to signal the clockdomain code when to force-enable and auto-idle a clockdomain during the IP block enable process. The current conjecture is that once that hwmod sequence is implemented, it will no longer be necessary for the clock code to call into the clockdomain code for "optional clocks" on OMAP4. Add a static flag to the OMAP2+ clock code, clkdm_control, that by default preserves the OMAP2/3 behavior. Also add a function, omap2_clk_disable_clkdm_control(), intended to be called from OMAP4 and beyond clock initcalls, that disables the old behavior. Part of this patch was originally based on a patch by Rajendra Nayak <rnayak@ti.com>. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoît Cousson <b-cousson@ti.com> Cc: Rajendra Nayak <rnayak@ti.com>
* OMAP2xxx: clock: remove dsp_irate_ickPaul Walmsley2011-03-07
| | | | | | | | | | | After commit 81b34fbecbfbf24ed95c2d80d5cb14149652408f ("OMAP2 clock: split OMAP2420, OMAP2430 clock data into their own files"), it's possible to remove dsp_irate_ick from the OMAP2420 and OMAP2430 clock files. It was originally only needed due to a 2420/2430 clock tree difference, and now that the data is in separate files, it's superfluous. Signed-off-by: Paul Walmsley <paul@pwsan.com>
* OMAP2+: clock: remove the DPLL rate tolerance codePaul Walmsley2011-03-07
| | | | | | | | | | Remove the DPLL rate tolerance code that is called during rate rounding. As far as I know, this code is never used, since it's been more important for callers of the DPLL round_rate()/set_rate() functions to obtain an exact rate than it is to save a relatively small amount of power. Signed-off-by: Paul Walmsley <paul@pwsan.com>
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-09 09:05:56 -0500