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* usb: host: tegra: Resetting PORT0 based on information received via DT.Venu Byravarasu2013-01-281-1/+5
| | | | | | | | | | | Tegra USB host driver is using port instance number, to handle some of the hardware issues on SOC e.g. reset PORT0 twice etc. As instance number based handling looks ugly, making use of information passed through DT for achieving this. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: Add new DT property to USB node.Venu Byravarasu2013-01-282-0/+3
| | | | | | | | | As Tegra USB host driver is using instance number for resetting PORT0 twice, adding a new DT property for handling this. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* usb: phy: use kzalloc to allocate struct tegra_usb_phyVenu Byravarasu2013-01-281-1/+1
| | | | | | | | | | Use kzalloc instead of kmalloc to allocate struct tegra_usb_phy. This ensures that all function pointers in member u_phy are initialized to NULL. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: remove USB address related macros from iomap.hVenu Byravarasu2013-01-282-12/+3
| | | | | | | | | | USB register base address and sizes defined in iomap.h are not used in any files other than board-dt-tegra20.c. Hence removed those defines from header file and using the absolute values in board files. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* clk: tegra30: remove unused TEGRA_CLK_DUPLICATE()sPrashant Gaikwad2013-01-281-70/+0
| | | | | | | | | With device tree support added for Tegra clocks look up is done from device tree, remove unused TEGRA_CLK_DUPLICATE()s. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* clk: tegra20: remove unused TEGRA_CLK_DUPLICATE()sPrashant Gaikwad2013-01-281-17/+0
| | | | | | | | | With device tree support added for Tegra clocks look up is done from device tree, remove unused TEGRA_CLK_DUPLICATE()s. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra30: remove auxdataPrashant Gaikwad2013-01-281-30/+1
| | | | | | | Remove AUXDATA as clocks are initialized from device node. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra20: remove auxdataPrashant Gaikwad2013-01-281-24/+0
| | | | | | | Remove AUXDATA as clock are initialized from device node. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ASoC: tegra: remove auxdataPrashant Gaikwad2013-01-281-12/+2
| | | | | | | | | Configlink clock information is added to device tree. Get the clocks using device node. Remove AUXDATA. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* staging: nvec: remove use of clk_get_sysPrashant Gaikwad2013-01-282-5/+1
| | | | | | | | | | | | As clock information is added to device tree clock can be looked up using clk_get. Remove use of clk_get_sys. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Marc Dietrich <marvin24@gmx.de> Acked-by: Julian Andres Klode <jak@jak-linux.org> [swarren: updated TODO file to remove entry that requested this change] Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: paz00: add clock information to DTPrashant Gaikwad2013-01-281-0/+2
| | | | | | | Add clock i2c clock information to device node. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: add clock properties to Tegra30 DTPrashant Gaikwad2013-01-281-1/+55
| | | | | | | | Add clock information to device nodes. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> [swarren: added second clock to 3d node] Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: add clock properties to Tegra20 DTPrashant Gaikwad2013-01-281-0/+44
| | | | | | | Add clock information to device nodes. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* spi: tegra: do not use clock name to get clockPrashant Gaikwad2013-01-282-2/+2
| | | | | | | | | Since Tegra spi devices do not have multiple clocks, no need to use clock name to get the clock. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: remove legacy clock codePrashant Gaikwad2013-01-2811-7141/+0
| | | | | | | Remove all legacy clock code from mach-tegra. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: migrate to new clock codePrashant Gaikwad2013-01-2821-142/+73
| | | | | | | | | | | | | | | Migrate Tegra clock support to drivers/clk/tegra, this involves moving: 1. definition of tegra_cpu_car_ops to clk.c 2. definition of reset functions to clk-peripheral.c 3. change parent of cpu clock. 4. Remove legacy clock initialization. 5. Initialize clocks using DT. 6. Remove all instance of mach/clk.h Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> [swarren: use to_clk_periph_gate().] Signed-off-by: Stephen Warren <swarren@nvidia.com>
* clk: tegra: add clock support for Tegra30Prashant Gaikwad2013-01-283-0/+2064
| | | | | | | | | | | Add Tegra30 clock support based on common clock framework. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> [swarren: ensure all OF lookups return valid cookies i.e. an explicit error pointer or valid pointer not NULL, adapt to renames in earlier patches, fixed some checkpatch issues.] Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* clk: tegra: add clock support for Tegra20Prashant Gaikwad2013-01-283-0/+1281
| | | | | | | | | | | | Add Tegra20 clock support based on common clock framework. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> [swarren: s/1GHz/100MHz/ in call to tegra_clk_plle() to fix PCIe, implemented KBC clock, ensure all OF lookups return valid cookies i.e. an explicit error pointer or valid pointer not NULL, adapt to renames in earlier patches, fixed some checkpatch issues.] Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* clk: tegra: add Tegra specific clocksPrashant Gaikwad2013-01-2811-0/+2126
| | | | | | | | | | | | | | | | Add Tegra specific clocks, pll, pll_out, peripheral, frac_divider, super. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> [swarren: alloc sizeof(*foo) not sizeof(struct foo), add comments re: storing pointers to stack variables, make a timeout loop more idiomatic, use _clk_pll_disable() not clk_disable_pll() from _program_pll() to avoid redundant lock operations, unified tegra_clk_periph() and tegra_clk_periph_nodiv(), unified tegra_clk_pll{,e}, rename all clock registration functions so they don't have the same name as the clock structs, return -EINVAL from clk_plle_enable when matching table rate not found, pass ops to _tegra_clk_register_pll rather than a bool.] Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: define Tegra30 CAR bindingPrashant Gaikwad2013-01-282-0/+268
| | | | | | | | | The device tree binding models Tegra30 CAR (Clock And Reset) as a single monolithic clock provider. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> [swarren: fixed typo in binding doc] Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: define Tegra20 CAR bindingStephen Warren2013-01-282-0/+211
| | | | | | | | | | | | | | | | The Tegra20 CAR (Clock And Reset) Controller controls most aspects of most clocks within Tegra20. The device tree binding models this as a single monolithic clock provider, which exports many clocks. This reduces the number of nodes needed in device tree to represent these clocks. This binding is only useful for Tegra20; the set of clocks that exists on Tegra30 is sufficiently different to merit its own binding. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org> [pgaikwad: Added mux clk ids and sorted CAR node] Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: move tegra_cpu_car.h to linux/clk/tegra.hPrashant Gaikwad2013-01-2810-12/+12
| | | | | | | | tegra_cpu_car_ops struct is going to be accessed from drivers/clk/tegra. Move the tegra_cpu_car_ops to include/linux/clk/tegra.h. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: add function to read chipidPrashant Gaikwad2013-01-282-1/+29
| | | | | | | | | Add function to read chip id from APB MISC registers. This function will also get called from clock driver to flush write operations on apb bus. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: fix compile error when disable CPU_IDLEJoseph Lo2013-01-281-1/+1
| | | | | | | | | | The "sleep.S" file has many functions that be shared by different module currently. Not just for CPU idle driver. Make it build as default now. Reported-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Joseph Lo <josephl@nvidia.com> [swarren: add sleep.o to separate line so each line only contains 1 file] Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra30: make the wait time of CPU power up to proportional to HZJoseph Lo2013-01-281-2/+2
| | | | | | | | | | | It would rather to use the API of time_to_jiffies than a constant number of jiffies for the wait time of CPU power up. Based on the work by: Sang-Hun Lee <sanlee@nvidia.com> Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: make device can run on UPJoseph Lo2013-01-286-223/+246
| | | | | | | | | | | | | | | | | | | | The reset handler code is used for either UP or SMP. To make Tegra device can compile for UP. It needs to be moved to another file that is not SMP only. This is because the reset handler also be needed by CPU idle "powered-down" mode. So we also need to put the reset handler init function in non-SMP only and init them always. And currently the implementation of the reset handler to know which CPU is OK to bring up was identital with "cpu_present_mask". But the "cpu_present_mask" did not initialize yet when the reset handler init function was moved to init early function. We use the "cpu_possible_mask" to replace "cpu_present_mask". Then it can work on both UP and SMP case. Signed-off-by: Joseph Lo <josephl@nvidia.com> [swarren: dropped the move of v7_invalidate_l1() from one file to another, to avoid conflicts with Pavel's cleanup of this function, adjust Makefile so each line only contains 1 file.] Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: clean up the CPUINIT sectionJoseph Lo2013-01-283-7/+5
| | | | | | | | | | | | | | | There are some redundant codes in the CPUINIT section that was caused by some codes not be organized well in "headsmp.S". Currently all the codes in "headsmp.S" were put into CPUINIT section. But actually it doesn't need to be loacted in CPUINIT section. There is no fuction access them in CPUINIT section and we will relocate them to IRAM. These codes also caused some unnecessary functions that access these codes been put into CPUINIT section too. This patch clean it up and put them into normal text section. Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: moving the clock gating procedure to tegra_cpu_killJoseph Lo2013-01-283-6/+13
| | | | | | | | | | | The tegra_cpu_die was be executed by the CPU itslf. So the clock gating procedure won't be executed after the CPU hardware shutdown code. Moving the clock gating procedure to tegra_cpu_kill that will be run by another CPU after the CPU died. Signed-off-by: Joseph Lo <josephl@nvidia.com> Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: update the cache maintenance order for CPU shutdownJoseph Lo2013-01-285-9/+6
| | | | | | | | | | | | | | | | | | | | | | Updating the cache maintenance order before CPU shutdown when doing CPU hotplug. The old order: * clean L1 by flush_cache_all * exit SMP * CPU shutdown Adapt to: * disable L1 data cache by clear C bit * clean L1 by v7_flush_dcache_louis * exit SMP * CPU shutdown For CPU hotplug case, it's no need to do "flush_cache_all". And we should disable L1 data cache before clean L1 data cache. Then leaving the SMP coherency. Signed-off-by: Joseph Lo <josephl@nvidia.com> Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra30: fix power up sequence for boot_secondaryJoseph Lo2013-01-281-1/+38
| | | | | | | | | | | | | | | | | | | The power up sequence is different on the cold boot CPU and the CPU that resumed from the hotplug. For the cold boot CPU, it was been power gated as default. To power up the cold boot CPU, the power should be un-gated by un toggling the power gate register manually. For the CPU that resumed from the hotplug, after un-halted the CPU. The flow controller will un-gate the power of the CPU. No need to manually control, just wait the power be resumed and continue the power up sequence after the CPU power is ready. Based on the work by: Varun Wadekar <vwadekar@nvidia.com> Signed-off-by: Joseph Lo <josephl@nvidia.com> Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: cpufreq: move clk_get/put out of function tegra_cpu_init/exitRichard Zhao2013-01-281-20/+20
| | | | | | | | | tegra_cpu_init/exit will be called every time one cpu core is online or offline. And all cpu cores share same clocks, redundant clk_get/put wast time, so I move them out. Signed-off-by: Richard Zhao <linuxzsc@gmail.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: fix Kconfig warnings when !SMPStephen Warren2013-01-281-2/+2
| | | | | | | | | | | Fix: warning: (ARCH_TEGRA_2x_SOC) selects ARM_ERRATA_754327 which has unmet direct dependencies (CPU_V7 && SMP) warning: (ARCH_TEGRA_2x_SOC) selects ARM_ERRATA_742230 which has unmet direct dependencies (CPU_V7 && SMP) by selecting options only if SMP. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: Make variables staticHiroshi Doyu2013-01-285-12/+12
| | | | | | | | No need to be public. Checked with: $ touch arch/arm/mach-tegra/*[ch] && make C=1 Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* clocksource: tegra: cosmetic: Fix error messageHiroshi Doyu2013-01-281-1/+1
| | | | | | | Add missing \n. Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: move timer.c to drivers/clocksource/Stephen Warren2013-01-287-9/+8
| | | | | | | | Move arch/arm/mach-tegra/timer.c to drivers/clocksource/tegra20_timer.c so that the code is co-located with other clocksource drivers, and to reduce the size of the mach-tegra directory. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* Merge remote-tracking branch 'korg_arm-soc/timer/cleanup' into for-3.9/cleanupStephen Warren2013-01-28531-1510/+939
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| * ARM: at91: fix board-rm9200-dt after sys_timer conversionJoachim Eastwood2013-01-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After "ARM: delete struct sys_timer" board-rm9200-dt fails compilation with the following error: CC arch/arm/mach-at91/board-rm9200-dt.o arch/arm/mach-at91/board-rm9200-dt.c:50:2: error: unknown field 'timer' specified in initializer arch/arm/mach-at91/board-rm9200-dt.c:50:13: error: 'at91rm9200_timer' undeclared here (not in a function) make[1]: *** [arch/arm/mach-at91/board-rm9200-dt.o] Error 1 make: *** [arch/arm/mach-at91] Error 2 This is a fall out from the timer conversion. Fix it by converting board-rm9200-dt to use new timer init function as well. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>
| * ARM: sunxi: fix struct sys_timer removalStephen Warren2013-01-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Commit 6bb27d7 "ARM: delete struct sys_timer" removed struct sys_timer, but didn't update mach-sunxi/sunxi.c for this change, even though the sunxi timer implementation itself was updated. This caused a build break: arch/arm/mach-sunxi/sunxi.c:94:2: error: unknown field 'timer' specified in initializer arch/arm/mach-sunxi/sunxi.c:94:12: error: 'sunxi_timer' undeclared here (not in a function) Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>
| * clocksource: add common of_clksrc_init() functionStephen Warren2013-01-025-0/+57
| | | | | | | | | | | | | | | | | | | | | | | | It is desirable to move all clocksource drivers to drivers/clocksource, yet each requires its own initialization function. We'd rather not pollute <linux/> with a header for each function. Instead, create a single of_clksrc_init() function which will determine which clocksource driver to initialize based on device tree. Based on a similar patch for drivers/irqchip by Thomas Petazzoni. Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: delete struct sys_timerStephen Warren2012-12-24495-1224/+629
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the only field in struct sys_timer is .init, delete the struct, and replace the machine descriptor .timer field with the initialization function itself. This will enable moving timer drivers into drivers/clocksource without having to place a public prototype of each struct sys_timer object into include/linux; the intent is to create a single of_clocksource_init() function that determines which timer driver to initialize by scanning the device dtree, much like the proposed irqchip_init() at: http://www.spinics.net/lists/arm-kernel/msg203686.html Includes mach-omap2 fixes from Igor Grinberg. Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: remove struct sys_timer suspend and resume fieldsStephen Warren2012-12-242-45/+0
| | | | | | | | | | | | | | | | | | | | | | These fields duplicate e.g. struct clock_event_device's suspend and resume fields, so remove them now that nothing is using them. The aim is to remove all fields from struct sys_timer except .init, then replace the ARM machine descriptor's .timer field with a .init_time function instead, and delete struct sys_timer. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: samsung: register syscore_ops for timer resume directlyStephen Warren2012-12-241-1/+6
| | | | | | | | | | | | | | | | | | | | | | Instead of using struct sys_timer's resume function, register syscore_ops directly in s3c2410_timer_init(). This will allow the sys_timer suspend/ resume fields to be removed, and eventually lead to a complete removal of struct sys_timer. Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: ux500: convert timer suspend/resume to clock_event_deviceStephen Warren2012-12-242-20/+20
| | | | | | | | | | | | | | | | | | | | | | Move ux500's timer suspend/resume functions from struct sys_timer ux500_timer into struct clock_event_device nmdk_clkevt. This will allow the sys_timer suspend/resume fields to be removed, and eventually lead to a complete removal of struct sys_timer. Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: sa1100: convert timer suspend/resume to clock_event_deviceStephen Warren2012-12-241-33/+33
| | | | | | | | | | | | | | | | | | Move sa1100's timer suspend/resume functions from struct sys_timer sa1100_timer into struct clock_event_device ckevt_sa1100_osmr0. This will allow the sys_timer suspend/resume fields to be removed, and eventually lead to a complete removal of struct sys_timer. Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: pxa: convert timer suspend/resume to clock_event_deviceStephen Warren2012-12-241-38/+38
| | | | | | | | | | | | | | | | | | | | | | | | Move PXA's timer suspend/resume functions from struct sys_timer pxa_timer into struct clock_event_device ckevt_pxa_osmr0. This will allow the sys_timer suspend/resume fields to be removed, and eventually lead to a complete removal of struct sys_timer. Cc: Russell King <linux@arm.linux.org.uk> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: at91: convert timer suspend/resume to clock_event_deviceStephen Warren2012-12-241-21/+26
| | | | | | | | | | | | | | | | | | | | | | | | Move at91's timer suspend/resume functions from struct sys_timer at91sam926x_timer into struct clock_event_device pit_clkevt. This will allow the sys_timer suspend/resume fields to be removed, and eventually lead to a complete removal of struct sys_timer. Cc: Andrew Victor <linux@maxim.org.za> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * ARM: set arch_gettimeoffset directlyStephen Warren2012-12-2411-46/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | remove ARM's struct sys_timer .offset function pointer, and instead directly set the arch_gettimeoffset function pointer when the timer driver is initialized. This requires multiplying all function results by 1000, since the removed arm_gettimeoffset() did this. Also, s/unsigned long/u32/ just to make the function prototypes exactly match that of arch_gettimeoffset. Cc: Russell King <linux@arm.linux.org.uk> Cc: Andrew Victor <linux@maxim.org.za> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ryan Mallon <rmallon@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * m68k: set arch_gettimeoffset directlyStephen Warren2012-12-2421-58/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | remove m68k's mach_gettimeoffset function pointer, and instead directly set the arch_gettimeoffset function pointer. This requires multiplying all function results by 1000, since the removed m68k_gettimeoffset() did this. Also, s/unsigned long/u32/ just to make the function prototypes exactly match that of arch_gettimeoffset. Cc: Joshua Thompson <funaho@jurai.org> Cc: Sam Creasey <sammy@sammy.net> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Phil Blundell <philb@gnu.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * time: convert arch_gettimeoffset to a pointerStephen Warren2012-12-248-31/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, whenever CONFIG_ARCH_USES_GETTIMEOFFSET is enabled, each arch core provides a single implementation of arch_gettimeoffset(). In many cases, different sub-architectures, different machines, or different timer providers exist, and so the arch ends up implementing arch_gettimeoffset() as a call-through-pointer anyway. Examples are ARM, Cris, M68K, and it's arguable that the remaining architectures, M32R and Blackfin, should be doing this anyway. Modify arch_gettimeoffset so that it itself is a function pointer, which the arch initializes. This will allow later changes to move the initialization of this function into individual machine support or timer drivers. This is particularly useful for code in drivers/clocksource which should rely on an arch-independant mechanism to register their implementation of arch_gettimeoffset(). This patch also converts the Cris architecture to set arch_gettimeoffset directly to the final implementation in time_init(), because Cris already had separate time_init() functions per sub-architecture. M68K and ARM are converted to set arch_gettimeoffset to the final implementation in later patches, because they already have function pointers in place for this purpose. Cc: Russell King <linux@arm.linux.org.uk> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Mikael Starvik <starvik@axis.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Thomas Gleixner <tglx@linutronix.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
| * cris: move usec/nsec conversion to do_slow_gettimeoffsetStephen Warren2012-12-242-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | Move usec to nsec conversion from arch_gettimeoffset() to do_slow_gettimeoffset(); in a future patch, do_slow_gettimeoffset() will be used directly as the implementation of arch_gettimeoffset(), so needs to perform all required calculations. Cc: Mikael Starvik <starvik@axis.com> Cc: linux-cris-kernel@axis.com Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
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