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* ARM: OMAP: duplicate plat-omap/clock.c into mach-omap[12]/clock.cPaul Walmsley2012-10-191-544/+0
| | | | | | | | | | | Duplicate arch/arm/plat-omap/clock.c into arch/arm/mach-omap1/clock.c and arch/arm/mach-omap2/clock.c. This is to support people who are working on the ARM single image kernel and the OMAP common clock framework conversion. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP2+: hwmod: get rid of all omap_clk_get_by_name usageRajendra Nayak2012-09-221-27/+0
| | | | | | | | | | | | | | | | | | | | | Moving to Common clk framework for OMAP would mean we no longer use internal lookup mechanism like omap_clk_get_by_name(). get rid of all its usage mostly from hwmod and omap_device code. Moving to clk_get() also means the respective platforms need the clkdev tables updated with an entry for all clocks used by hwmod to have clock name same as the alias. Based on original changes from Mike Turquette. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Cc: Russell King - ARM Linux <linux@arm.linux.org.uk> [paul@pwsan.com: removed IS_ERR_OR_NULL() conversion (rmk comment); restricted omap_96m_alwon_fck_3630 to OMAP36xx; added missing AM35xx clock aliases for emac_fck, emac_ick, vpfe_ick, vpfe_fck; added aliases rng_ick and several emulation clocks] Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP: PM: Lock clocks list while generating summaryTodd Poynor2012-06-171-0/+2
| | | | | | | | | | | | | | | | | Commit a53025724052b2b1edbc982a4a248784638f563d (OMAP: Add debugfs node to show the summary of all clocks) introduced clock summary, however, we are interested in seeing snapshot of the clock state, not in dynamically changing clock configurations as the data provided by clock summary will then be useless for debugging configuration issues. So, hold the common lock when dumping the clock summary. Cc: Paul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Todd Poynor <toddpoynor@google.com> [nm@ti.com: added commit message] Signed-off-by: Nishanth Menon <nm@ti.com> [paul@pwsan.com: minor edits to commit message] Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP: clock: cleanup CPUfreq leftovers, fix build errorsKevin Hilman2012-04-151-26/+0
| | | | | | | | | | | | | | | | | | | 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: clock: fix race in disable all clocksNishanth Menon2012-04-041-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | clk_disable_unused is invoked when CONFIG_OMAP_RESET_CLOCKS=y. Since clk_disable_unused is called as lateinitcall, there can be more than a few workqueues executing off secondary CPU(s). The current code does the following: a) checks if clk is unused b) holds lock c) disables clk d) unlocks Between (a) and (b) being executed on CPU0, It is possible to have a driver executing on CPU1 which could do a get_sync->clk_get (and increase the use_count) of the clock which was just about to be disabled by clk_disable_unused. We ensure instead that the entire list traversal is protected by the lock allowing for parent child clock traversal which could be potentially be done by runtime operations to be safe as well. Reported-by: Todd Poynor <toddpoynor@google.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP: clock.c: included linux/debugfs.h twiceDanny Kukawka2012-03-061-1/+0
| | | | | | | | arch/arm/plat-omap/clock.c: included 'linux/debugfs.h' twice, remove the duplicate. Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Signed-off-by: Tony Lindgren <tony@atomide.com>
* arm: Add export.h to ARM specific files as required.Paul Gortmaker2011-11-011-0/+1
| | | | | | | These files all make use of one of the EXPORT_SYMBOL variants or the THIS_MODULE macro. So they will need <linux/export.h> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* Merge branch 'next/devel2' of ↵Linus Torvalds2011-07-271-0/+39
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc * 'next/devel2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: (47 commits) OMAP: Add debugfs node to show the summary of all clocks OMAP2+: hwmod: Follow the recommended PRCM module enable sequence OMAP2+: clock: allow per-SoC clock init code to prevent clockdomain calls from clock code OMAP2+: clockdomain: Add per clkdm lock to prevent concurrent state programming OMAP2+: PM: idle clkdms only if already in idle OMAP2+: clockdomain: add clkdm_in_hwsup() OMAP2+: clockdomain: Add 2 APIs to control clockdomain from hwmod framework OMAP: clockdomain: Remove redundant call to pwrdm_wait_transition() OMAP4: hwmod: Introduce the module control in hwmod control OMAP4: cm: Add two new APIs for modulemode control OMAP4: hwmod data: Add modulemode entry in omap_hwmod structure OMAP4: hwmod data: Add PRM context register offset OMAP4: prm: Remove deprecated functions OMAP4: prm: Replace warm reset API with the offset based version OMAP4: hwmod: Replace RSTCTRL absolute address with offset macros OMAP: hwmod: Wait the idle status to be disabled OMAP4: hwmod: Replace CLKCTRL absolute address with offset macros OMAP2+: hwmod: Init clkdm field at boot time OMAP4: hwmod data: Add clock domain attribute OMAP4: clock data: Add missing divider selection for auxclks ...
| * OMAP: Add debugfs node to show the summary of all clocksJon Hunter2011-07-101-0/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a debugfs node called "summary" to /sys/kernel/debug/clock/ that displays a quick summary of all clocks registered in the "clocks" structure. The format of the output from this node is: <clock-name> <parent-name> <rate> <usecount> This debugfs node was very helpful for taking a quick snapshot of the linux clock tree for OMAP and ensuring clock frequencies calculated by the kernel were indeed correct. This patch helped uncover some bugs in the linux clock tree for OMAP4. Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* | arm: don't create useless copies to pass into debugfs_create_dir()Al Viro2011-07-211-5/+1
| | | | | | | | | | | | its first argument is const char * and it's really not modified... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | switch assorted clock drivers to debugfs_remove_recursive()Al Viro2011-07-211-4/+2
|/ | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* OMAP: clock: bail out early if arch_clock functions not implementedPaul Walmsley2011-03-081-28/+38
| | | | | | | | Bail out before we take the clockfw_lock spinlock if the corresponding OMAP1 or OMAP2+ clock function is not defined. The intention is to reduce and simplify the work that is done inside the spinlock. Signed-off-by: Paul Walmsley <paul@pwsan.com>
* OMAP2+: clock: autoidle as many clocks as possible if CONFIG_OMAP_RESET_CLOCKSPaul Walmsley2011-02-261-0/+1
| | | | | | | | | | | | | | | | | | | | Attempt to enable autoidle for as many clocks as possible in the OMAP2+-common CONFIG_OMAP_RESET_CLOCKS code. Currently, this only enables DPLL autoidle for OMAP3/4 DPLLs; but future patches will enable autoidle for other clocks and the OMAP2 DPLL/APLLs. In the long run, we should probably get rid of CONFIG_OMAP_RESET_CLOCKS, and unconditionally run the code that it selects. Otherwise, the state of the clock tree won't match the hardware state - this could result in clocks being enabled or disabled unpredictably. Based on a patch by Rajendra Nayak <rnayak@ti.com> that did this in the pm34xx.c/pm44xx.c code. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Rajendra Nayak <rnayak@ti.com>
* OMAP: clock: Add allow_idle/deny_idle support in clkopsRajendra Nayak2011-02-261-0/+32
| | | | | | | | | | | | | | | | | | | | | | On OMAP various clock nodes (dpll's, mx post dividers, interface clocks) support hardware level autogating which can be controlled from software. Support such functionality by adding two new function pointer allow_idle and deny_idle in the clkops structure. These function pointers can be populated for any clock node which supports hardware level autogating. Also add 2 new functions (omap_clk_enable_autoidle_all and omap_clk_disable_autoidle_all) which can be called from architecture specific PM core code, if hardware level autogating (for all supported clock nodes) is to be enabled or disabled. Signed-off-by: Rajendra Nayak <rnayak@ti.com> [paul@pwsan.com: use spinlock rather than mutex due to race; renamed functions; functions now return ints] Signed-off-by: Paul Walmsley <paul@pwsan.com>
* OMAP2+: clock: reduce the amount of standard debugging while disabling ↵Paul Walmsley2010-10-081-2/+3
| | | | | | | | | | | | | | | | unused clocks Reduce the amount of debugging generated by default when unused clocks are being disabled by the clock code. The previous code would only generate debug-level messages, but some people who wished to run production kernels with debug-level messages enabled reported that the large number of clock disable messages were slowing boot. Now to enable clock-by-clock disable messages, DEBUG needs to be defined in mach-omap2/clock.c. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Tuukka Tikkanen <tuukka.tikkanen@nokia.com> Cc: Tim Bird <tim.bird@am.sony.com>
* OMAP4 clock: Support clk_set_parentRajendra Nayak2010-05-201-5/+0
| | | | | | | | Remove the hack put in place while clock framework was still not in place for OMAP4. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* OMAP clock: resolve old checkpatch and CodingStyle issues with plat-omap/clock.cPaul Walmsley2010-05-201-13/+15
| | | | | | | Clean up comment style, remove unnecessary includes, and resolve some checkpatch warnings in plat-omap/clock.c. Signed-off-by: Paul Walmsley <paul@pwsan.com>
* OMAP4: clock: Add dummy clock nodes for interface clocksSantosh Shilimkar2010-02-251-0/+10
| | | | | | | | | | | | | | | | On OMAP4 platform the iclk control is completly under hardware control and no software control is available. This difference w.r.t previous OMAP's needs all the common driver accross OMAP's , cpu_is_xxxx() checks. To avoid poulluting the drivers dummy clock nodes are created (The autogeneration script has been updated accordingly). Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Benoit Cousson <b-cousson@ti.com> [paul@pwsan.com: made OMAP1 dummy_ck common and edited patch to reuse that] Signed-off-by: Paul Walmsley <paul@pwsan.com>
* OMAP clock: add omap_clk_get_by_name() for use by OMAP hwmod core codePaul Walmsley2010-02-241-0/+27
| | | | | | | | | | | | | | | | | | | | | | | The OMAP hwmod core code is intended to use SoC IP block description structures that are autogenerated from TI's OMAP hardware database. Currently the hwmod code uses clkdev device + connection addressing to identify clocks. This causes problems in the hwmod autogeneration process, since the TI hardware database doesn't use platform_device or clkdev addressing; it uses a single clock signal name string, which tends to bear some resemblance to what is used in the OMAP TRMs. This patch adds a non-exported function to the OMAP clock code, omap_clk_get_by_name(). A subsequent patch will convert the hwmod code to use this function. This function is for use only by core code, and practically, no other code outside the hwmod code should need it. Device driver code in the kernel must not use this function, which is why it is not exported. Drivers should use the appropriate clock alias provided by the clkdev data structures, so driver code can be completely SoC-independent. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoît Cousson <b-cousson@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com>
* OMAP clock: drop .id field; ensure each clock has a unique namePaul Walmsley2010-02-241-2/+0
| | | | | | | | After the clkdev conversion, the struct clk.id field became superfluous, so, drop it. Bring the clock names closer to the TRMs and ensure they are unique for debugfs. Signed-off-by: Paul Walmsley <paul@pwsan.com>
* Merge branch 'omap-fixes-for-linus' into omap-for-linusTony Lindgren2010-02-111-2/+2
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| * omap: Fix access to already released memory in clk_debugfs_register_one()Marek Skuczynski2010-02-031-2/+2
| | | | | | | | | | | | | | | | | | I have found an access to already released memory in clk_debugfs_register_one() function. Signed-off-by: Marek Skuczynski <mareksk7@gmail.com> Acked-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* | OMAP clock: resolve all remaining sparse warningsPaul Walmsley2010-01-291-1/+1
| | | | | | | | | | | | Resolve all remaining sparse warnings in the OMAP clock code. Signed-off-by: Paul Walmsley <paul@pwsan.com>
* | OMAP clock: make the fixed divisor clock code available for all OMAPsPaul Walmsley2010-01-271-0/+11
|/ | | | | | | | | | One of the OMAP1 clocks can use the fixed divisor recalculation code introduced in the OMAP2 clock code, so rename the omap2_fixed_divisor_recalc() function to omap_fixed_divisor_recalc() and make it available to all OMAPs. A followup patch converts the OMAP1 clock. Signed-off-by: Paul Walmsley <paul@pwsan.com>
* OMAP clock/CPUFreq: add clk_exit_cpufreq_table()Paul Walmsley2010-01-081-0/+10
| | | | | | | | | | | A subsequent patch adds code on OMAP2xxx to dynamically allocate the CPUFreq frequency table in clk_init_cpufreq_table(), so for it to avoid a leak, it will need a corresponding function to free the memory. This patch adds clk_exit_cpufreq_table() with generic code to call a chip-specific variant inside the clockfw_lock spinlock via struct clk_functions. Signed-off-by: Paul Walmsley <paul@pwsan.com>
* OMAP clock: remove incorrect EXPORT_SYMBOL()sPaul Walmsley2010-01-081-6/+0
| | | | | | | | | | | The only symbols that should be exported are symbols that are to be called from loadable kernel modules, e.g., device drivers. In the context of plat-omap/clock.c, these should only be the Linux clock interface symbols as defined by include/linux/clk.h. Core code doesn't need these symbols to be exported. Also, clean up an old comment while here. Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP4: PM: Add dummy hooks for OMAP4 dpll api'sRajendra Nayak2009-12-121-21/+0
| | | | | | | | | | | | This patch adds dummy hooks for OMAP4 dpll api's. Removes dummy hooks for clkdev api's and enables CLKDEV for OMAP4. Also comments clockdomain calls from within the clock framework as its not supported yet for OMAP4. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com>
* ARM: OMAP4: PM: Fix the PRM and CM base addressesRajendra Nayak2009-12-121-5/+0
| | | | | | | | | This patch fixes the PRM and CM base addresses and adds a new CM2 base address for OMAP4 Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com>
* omap: headers: Move remaining headers from include/mach to include/platTony Lindgren2009-10-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the remaining headers under plat-omap/include/mach to plat-omap/include/plat. Also search and replace the files using these headers to include using the right path. This was done with: #!/bin/bash mach_dir_old="arch/arm/plat-omap/include/mach" plat_dir_new="arch/arm/plat-omap/include/plat" headers=$(cd $mach_dir_old && ls *.h) omap_dirs="arch/arm/*omap*/ \ drivers/video/omap \ sound/soc/omap" other_files="drivers/leds/leds-ams-delta.c \ drivers/mfd/menelaus.c \ drivers/mfd/twl4030-core.c \ drivers/mtd/nand/ams-delta.c" for header in $headers; do old="#include <mach\/$header" new="#include <plat\/$header" for dir in $omap_dirs; do find $dir -type f -name \*.[chS] | \ xargs sed -i "s/$old/$new/" done find drivers/ -type f -name \*omap*.[chS] | \ xargs sed -i "s/$old/$new/" for file in $other_files; do sed -i "s/$old/$new/" $file done done for header in $(ls $mach_dir_old/*.h); do git mv $header $plat_dir_new/ done Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP clock: use debugfs_remove_recursive() for rewindingHiroshi DOYU2009-09-031-1/+1
| | | | | | | Rewinding each debugfs entries to unregister if an error happens. Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* Merge branch 'omap4' into for-nextTony Lindgren2009-05-291-0/+33
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| * ARM: OMAP4: Clock stubs since CLKDEV not in yet.Santosh Shilimkar2009-05-281-0/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch update the common clock.c file for OMAP4. The clk_get() and clk_put() functions are moved to common place in arch/arm/common/clkdev.c Since on current OMAP4 platform clk management is still not supported, the platform file is stubbed with those functions. Once the framework is ready, this WILL be replaced with a full clkdev implementation. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* | OMAP2xxx clock: rename clk_init_one() to clk_preinit()Paul Walmsley2009-05-131-2/+2
|/ | | | | | Rename clk_init_one() to clk_preinit() to distinguish its function from clk_init() and the individual struct clk init functions. Signed-off-by: Paul Walmsley <paul@pwsan.com>
* OMAP2xxx clock: pre-initialize struct clks earlyPaul Walmsley2009-04-231-0/+7
| | | | | | | | | | | | | | | | | | | | | | | Commit 3f0a820c4c0b4670fb5f164baa5582e23c2ef118 breaks OMAP2xxx boot during initial propagate_rate() on osc_ck and sys_ck. Fix by pre-initializing all struct clks before running any other clock init code. Incorporates review comments from Russell King <rmk+kernel@arm.linux.org.uk>. Resolves <1>Unable to handle kernel NULL pointer dereference at virtual address 00000000 <1>pgd = c0004000 <1>[00000000] *pgd=00000000 Internal error: Oops: 5 [#1] Modules linked in: CPU: 0 Not tainted (2.6.29-omap1 #37) PC is at propagate_rate+0x10/0x60 LR is at omap2_clk_init+0x30/0x218 ... Signed-off-by: Paul Walmsley <paul@pwsan.com> Tested-by: Jarkko Nikula <jarkko.nikula@nokia.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] omap: clk_set_parent: deny changing parent if clock is enabledRussell King2009-03-031-7/+10
| | | | | | | | | | | | | | | | | | | | | | | | | Richard Woodruff writes: | The historic usage of this has been against single use leaf clocks | (1st instance of gptimer). When it was used it did: | clk_get() | clk_set_parent() | clk_enable() | | This usage was ok for that. Use on a disabled clock is needed. | | If there are multiple users on the clock or it is enabled there are | problems. | | The call can still be unfriendly if 2 different drivers are using the | clock with their own clock get/enable. It might be the function should | return an error if usecount != 0 to stop surprises. It is all around | better if the parenting is done when the clock is off. This is a good reason to ensure that the clock is not enabled when clk_set_parent() is called. Acked-by: Richard Woodruff <r-woodruff2@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] omap: arrange for clock recalc methods to return the rateRussell King2009-02-141-9/+6
| | | | | | | | | | | | | linux-omap source commit 33d000c99ee393fe2042f93e8422f94976d276ce introduces a way to "dry run" clock changes before they're committed. However, this involves putting logic to handle this into each and every recalc function, and unfortunately due to the caching, led to some bugs. Solve both of issues by making the recalc methods always return the clock rate for the clock, which the caller decides what to do with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] OMAP clock: drop clk_get_usecount()Paul Walmsley2009-02-081-16/+0
| | | | | | | | | | | | | This function is race-prone and mistakenly conveys the impression to drivers that it is part of the clock interface. Get rid of it: core code that absolutely needs this can just check clk->usecount. Drivers should not use it at all. linux-omap source commit is 5df9e4adc2f6a6d55aca53ee27b8baad18897c05. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] omap: create a proper tree of clocksRussell King2009-02-081-19/+32
| | | | | | | | | | | Traditionally, we've tracked the parent/child relationships between clk structures by setting the child's parent member to point at the upstream clock. As a result, when decending the tree, we have had to scan all clocks to find the children. Avoid this wasteful scanning by keeping a list of the clock's children. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] omap: clks: call recalc after any rate changeRussell King2009-02-081-4/+12
| | | | | | | | | | | | This implements the remainder of: OMAP clock: move rate recalc, propagation code up to plat-omap/clock.c from Paul Walmsley which is not covered by the previous: [ARM] omap: move clock propagation into core omap clock code [ARM] omap: remove unnecessary calls to propagate_rate() [ARM] omap: move propagate_rate() calls into generic omap clock code commits. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] omap: remove pre-CLKDEV clk_get/clk_putRussell King2009-02-081-46/+0
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] omap: convert OMAP1 to use clkdevRussell King2009-02-081-0/+4
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] omap: allow double-registering of clocksRussell King2009-02-081-0/+6
| | | | | | | | This stops things blowing up if a 'struct clk' to be passed more than once to clk_register(), which will be required when we decouple struct clk's from their names. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] omap: move propagate_rate() calls into generic omap clock codeRussell King2009-02-081-5/+9
| | | | | | | | | propagate_rate() is recursive, so it makes sense to minimise the amount of stack which is used for each recursion. So, rather than recursing back into it from the ->recalc functions if RATE_PROPAGATES is set, do that test at the higher level. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] omap: move clock propagation into core omap clock codeRussell King2009-02-081-1/+5
| | | | | | | | Move the clock propagation calls for set_parent and set_rate into the core omap clock code, rather than having these calls scattered throughout the OMAP1 and OMAP2 implementations. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] omap: provide a standard clk_get_parent() implementationRussell King2009-02-081-12/+1
| | | | | | which only has to return clk->parent. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] omap: remove clk_deny_idle and clk_allow_idleRussell King2009-02-081-28/+0
| | | | | | | Nothing makes any use of these functions, so there's little point in providing them. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] omap: remove clk->ownerRussell King2009-02-081-5/+2
| | | | | | | clk->owner is always NULL, so its existence doesn't serve any useful function other than bloating the kernel by 992 bytes. Remove it. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] omap: provide a NULL clock operations structureRussell King2009-02-081-2/+21
| | | | | | | | ... and use it for clocks which are ALWAYS_ENABLED. These clocks use a non-NULL enable_reg pointer for other purposes (such as selecting clock rates.) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: OMAP: Fix debugfs_create_*'s error checking method for arm/plat-omapZhaolei2008-11-041-10/+10
| | | | | | | | | | | | | | | | debugfs_create_*() returns NULL if an error occurs, returns -ENODEV when debugfs is not enabled in the kernel. Comparing to PATCH v1, because clk_debugfs_init is included in "#if defined CONFIG_DEBUG_FS", we only need to check NULL return. Thanks Li Zefan <lizf@cn.fujitsu.com> debugfs_create_u8() and other function's return value's checking method are also fixed in this patch. Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* [ARM] Convert asm/io.h to linux/io.hRussell King2008-09-061-2/+1
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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