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* clocksource: tegra: Use us counter as delay timerPeter De Schrijver2014-06-161-0/+13
| | | | | | | | | All Tegra SoCs have a freerunning microsecond counter which can be used as a delay timer. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* clocksource: tegra: Remove deprecated IRQF_DISABLEDMichael Opdenacker2013-12-111-1/+1
| | | | | | | | | | | This patch removes the use of the IRQF_DISABLED flag. It's a NOOP since 2.6.35 and it will be removed one day. [dlezcano] : slightly changed the changelog Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* clocksource: Put nodes passed to CLOCKSOURCE_OF_DECLARE callbacks centrallyUwe Kleine-König2013-10-021-4/+0
| | | | | | | | | | | | | Instead of letting each driver call of_node_put do it centrally in the loop that also calls the CLOCKSOURCE_OF_DECLARE callbacks. This is less prone to error and also moves getting and putting the references into the same function. Consequently all respective of_node_put calls in drivers are removed. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: David Brown <davidb@codeaurora.org>
* clocksource: tegra: Switch to sched_clock_register()Stephen Boyd2013-07-301-2/+2
| | | | | | | | | | | | The 32 bit sched_clock interface now supports 64 bits. Upgrade to the 64 bit function to allow us to remove the 32 bit registration interface. Cc: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: John Stultz <john.stultz@linaro.org>
* sched_clock: Make ARM's sched_clock generic for all architecturesStephen Boyd2013-06-121-1/+1
| | | | | | | | | | Nothing about the sched_clock implementation in the ARM port is specific to the architecture. Generalize the code so that other architectures can use it by selecting GENERIC_SCHED_CLOCK. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> [jstultz: Merge minor collisions with other patches in my tree] Signed-off-by: John Stultz <john.stultz@linaro.org>
* Merge tag 'tegra-for-3.10-cleanup' of ↵Arnd Bergmann2013-04-091-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/cleanup From Stephen Warren <swarren@wwwdotorg.org>: ARM: tegra: cleanup This branch includes various cleanup of the core Tegra support. * Unification of the separate board-dt-tegra*.c files into a single tegra.c, now that everything is DT-driven and basically identical. * Use of_clk_get() in the Tegra clocksource driver so that clocks are described in DT rather than hard-coding clock names. * Some cleanup of the PMC-related code, with the aim that the PMC "driver" contains more of the code that touches PMC registers, rather than spreading PMC register accesses through other files. * Conversion of the "PMC" driver to acquire resources describe in device tree rather than hard-coding them. * Use of common code for the CPU sleep TLB invalidation. This branch is based on the previous fixes pull request. * tag 'tegra-for-3.10-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: ARM: tegra: use setup_mm_for_reboot rather than explicit pgd switch ARM: tegra: replace the CPU power on function with PMC call ARM: tegra: pmc: add power on function for secondary CPUs ARM: tegra: pmc: convert PMC driver to support DT only ARM: tegra: fix the PMC compatible string in DT ARM: tegra: pmc: add specific compatible DT string for Tegra30 and Tegra114 ARM: tegra: refactor tegra{20,30}_boot_secondary clocksource: tegra: move to of_clk_get ARM: tegra: Unify Device tree board files ARM: tegra: Rename board-dt-tegra20.c to tegra.c ARM: tegra: Unify tegra{20,30,114}_init_early() Conflicts: drivers/clocksource/tegra20_timer.c Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * clocksource: tegra: move to of_clk_getPeter De Schrijver2013-03-111-2/+2
| | | | | | | | | | | | | | | | | | | | The new clockframework introduced DT IDs for each clock. To be able to remove the device registrations, this driver needs to be updated to use the DT IDs. Note that the actual removal of the clk_register_clkdev() calls will be done in a later series. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* | ARM: smp_twd: convert to use CLKSRC_OF initRob Herring2013-03-111-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we have OF based init with CLKSRC_OF, convert smp_twd init function to use it and covert all callers of twd_local_timer_of_register. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: John Stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-omap@vger.kernel.org Cc: spear-devel@list.st.com Reviewed-by: Stephen Warren <swarren@nvidia.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* | clocksource: tegra20: use the device_node pointer passed to initRob Herring2013-03-111-41/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | We've already matched the node, so use the node pointer passed in. The rtc init was intermingled with the timer init, so split this out to a separate init function. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: John Stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com>
* | clocksource: pass DT node pointer to init functionsRob Herring2013-03-111-2/+1
|/ | | | | | | | | | | | | | | | | | In cases where we have multiple nodes of the same type, we may need the node pointer to know which node was matched. Passing the node pointer also keeps the init function from having to match the node a 2nd time. Update bcm2835, vt8500, and tegra20 init functions for the new function prototype. Further tegra20 clean-ups are in follow-up commit. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: John Stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Tony Prisk <linux@prisktech.co.nz> Tested-by: Michal Simek <michal.simek@xilinx.com>
* Merge tag 'tegra-for-3.9-cleanup' of ↵Olof Johansson2013-02-051-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/cleanup From Stephen Warren: ARM: tegra: cleanup This pull request contains various cleanup and minor changes to core Tegra code: * Tegra clocksource driver is moved to drivers/clocksource. * Various typos, warning cleanup, statics cleanup, section mismatch fixes, etc. * Various small fixes/cleanups for CPU/hotplug/SMP code. This pull request is based on a merge of v3.8-rc3 and at least part of arm-soc's timer/cleanup branch. * tag 'tegra-for-3.9-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: ARM: tegra: fix compile error when disable CPU_IDLE ARM: tegra30: make the wait time of CPU power up to proportional to HZ ARM: tegra: make device can run on UP ARM: tegra: clean up the CPUINIT section ARM: tegra: moving the clock gating procedure to tegra_cpu_kill ARM: tegra: update the cache maintenance order for CPU shutdown ARM: tegra30: fix power up sequence for boot_secondary ARM: tegra: cpufreq: move clk_get/put out of function tegra_cpu_init/exit ARM: tegra: fix Kconfig warnings when !SMP ARM: tegra: Make variables static clocksource: tegra: cosmetic: Fix error message ARM: tegra: move timer.c to drivers/clocksource/ Signed-off-by: Olof Johansson <olof@lixom.net> Trivial conflicts: arch/arm/mach-tegra/board-dt-tegra20.c arch/arm/mach-tegra/board-dt-tegra30.c drivers/clocksource/Makefile
* 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 Warren2013-01-281-0/+285
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>