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* Merge tag 'pm+acpi-3.10-rc1' of ↵Linus Torvalds2013-04-3042-2738/+151
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management and ACPI updates from Rafael J Wysocki: - ARM big.LITTLE cpufreq driver from Viresh Kumar. - exynos5440 cpufreq driver from Amit Daniel Kachhap. - cpufreq core cleanup and code consolidation from Viresh Kumar and Stratos Karafotis. - cpufreq scalability improvement from Nathan Zimmer. - AMD "frequency sensitivity feedback" powersave bias for the ondemand cpufreq governor from Jacob Shin. - cpuidle code consolidation and cleanups from Daniel Lezcano. - ARM OMAP cpuidle fixes from Santosh Shilimkar and Daniel Lezcano. - ACPICA fixes and other improvements from Bob Moore, Jung-uk Kim, Lv Zheng, Yinghai Lu, Tang Chen, Colin Ian King, and Linn Crosetto. - ACPI core updates related to hotplug from Toshi Kani, Paul Bolle, Yasuaki Ishimatsu, and Rafael J Wysocki. - Intel Lynxpoint LPSS (Low-Power Subsystem) support improvements from Rafael J Wysocki and Andy Shevchenko. * tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (192 commits) cpufreq: Revert incorrect commit 5800043 cpufreq: MAINTAINERS: Add co-maintainer cpuidle: add maintainer entry ACPI / thermal: do not always return THERMAL_TREND_RAISING for active trip points ARM: s3c64xx: cpuidle: use init/exit common routine cpufreq: pxa2xx: initialize variables ACPI: video: correct acpi_video_bus_add error processing SH: cpuidle: use init/exit common routine ARM: S5pv210: compiling issue, ARM_S5PV210_CPUFREQ needs CONFIG_CPU_FREQ_TABLE=y ACPI: Fix wrong parameter passed to memblock_reserve cpuidle: fix comment format pnp: use %*phC to dump small buffers isapnp: remove debug leftovers ARM: imx: cpuidle: use init/exit common routine ARM: davinci: cpuidle: use init/exit common routine ARM: kirkwood: cpuidle: use init/exit common routine ARM: calxeda: cpuidle: use init/exit common routine ARM: tegra: cpuidle: use init/exit common routine for tegra3 ARM: tegra: cpuidle: use init/exit common routine for tegra2 ARM: OMAP4: cpuidle: use init/exit common routine ...
| * Merge branch 'pm-cpufreq'Rafael J. Wysocki2013-04-2820-2236/+30
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * pm-cpufreq: (57 commits) cpufreq: MAINTAINERS: Add co-maintainer cpufreq: pxa2xx: initialize variables ARM: S5pv210: compiling issue, ARM_S5PV210_CPUFREQ needs CONFIG_CPU_FREQ_TABLE=y cpufreq: cpu0: Put cpu parent node after using it cpufreq: ARM big LITTLE: Adapt to latest cpufreq updates cpufreq: ARM big LITTLE: put DT nodes after using them cpufreq: Don't call __cpufreq_governor() for drivers without target() cpufreq: exynos5440: Protect OPP search calls with RCU lock cpufreq: dbx500: Round to closest available freq cpufreq: Call __cpufreq_governor() with correct policy->cpus mask cpufreq / intel_pstate: Optimize intel_pstate_set_policy cpufreq: OMAP: instantiate omap-cpufreq as a platform_driver arm: exynos: Enable OPP library support for exynos5440 cpufreq: exynos: Remove error return even if no soc is found cpufreq: exynos: Add cpufreq driver for exynos5440 cpufreq: AMD "frequency sensitivity feedback" powersave bias for ondemand governor cpufreq: ondemand: allow custom powersave_bias_target handler to be registered cpufreq: convert cpufreq_driver to using RCU cpufreq: powerpc/platforms/cell: move cpufreq driver to drivers/cpufreq cpufreq: sparc: move cpufreq driver to drivers/cpufreq ... Conflicts: MAINTAINERS (with commit a8e39c3 from pm-cpuidle) drivers/cpufreq/cpufreq_governor.h (with commit beb0ff3)
| | * cpufreq: OMAP: instantiate omap-cpufreq as a platform_driverNishanth Menon2013-04-101-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As multi-platform build is being adopted by more and more ARM platforms, initcall function should be used very carefully. For example, when CONFIG_ARM_OMAP2PLUS_CPUFREQ is built in the kernel, omap_cpufreq_init() will be called on all the platforms to initialize omap-cpufreq driver. Further, on OMAP, we now use Soc generic cpufreq-cpu0 driver using device tree entries. To allow cpufreq-cpu0 and omap-cpufreq drivers to co-exist for OMAP in a single image, we need to ensure the following: 1. With device tree boot, we use cpufreq-cpu0 2. With non device tree boot, we use omap-cpufreq In the case of (1), we will have cpu OPPs and regulator registered as part of the device tree nodes, to ensure that omap-cpufreq and cpufreq-cpu0 don't conflict in managing the frequency of the same CPU, we should not permit omap-cpufreq to be probed. In the case of (2), we will not have the cpufreq-cpu0 device, hence only omap-cpufreq will be active. To eliminate this undesired these effects, we change omap-cpufreq driver to have it instantiated as a platform_driver and register "omap-cpufreq" device only when booted without device tree nodes on OMAP platforms. This allows the following: a) Will only run on platforms that create the platform_device "omap-cpufreq". b) Since the platform_device is registered only when device tree nodes are *not* populated, omap-cpufreq driver does not conflict with the usage of cpufreq-cpu0 driver which is used on OMAP platforms when device tree nodes are present. Inspired by commit 5553f9e26f6f49a93ba732fd222eac6973a4cf35 (cpufreq: instantiate cpufreq-cpu0 as a platform_driver) [robherring2@gmail.com: reported conflict of omap-cpufreq vs other driver in an non-device tree supported boot] Reported-by: Rob Herring <robherring2@gmail.com> Signed-off-by: Nishanth Menon <nm@ti.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * arm: exynos: Enable OPP library support for exynos5440Amit Daniel Kachhap2013-04-101-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | The OPP library support is needed for exynos5440 cpu frequency dynamic scaling driver. Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * cpufreq: sa11x0: move cpufreq driver to drivers/cpufreqViresh Kumar2013-04-106-678/+14
| | | | | | | | | | | | | | | | | | | | | | | | This patch moves cpufreq driver of ARM based sa11x0 platform to drivers/cpufreq. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * cpufreq: integrator: move cpufreq driver to drivers/cpufreqViresh Kumar2013-04-083-234/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves cpufreq driver of ARM based integrator platform to drivers/cpufreq. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * cpufreq: pxa2xx: move cpufreq driver to drivers/cpufreqViresh Kumar2013-04-083-505/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves cpufreq driver of ARM based pxa2xx platform to drivers/cpufreq. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Eric Miao <eric.y.miao@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * cpufreq: pxa3xx: move cpufreq driver to drivers/cpufreqViresh Kumar2013-04-083-258/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves cpufreq driver of ARM based pxa3xx platform to drivers/cpufreq. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Eric Miao <eric.y.miao@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * cpufreq: davinci: move cpufreq driver to drivers/cpufreqViresh Kumar2013-04-082-234/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves cpufreq driver of ARM based davinci platform to drivers/cpufreq. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Sekhar Nori <nsekhar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * cpufreq: tegra: Move driver to drivers/cpufreqViresh Kumar2013-04-082-295/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves cpufreq driver of ARM based tegra platform to drivers/cpufreq. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * cpufreq: drivers: Remove unnecessary assignments of policy-> membersViresh Kumar2013-04-022-16/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some assignments of policy-> min/max/cur/cpuinfo.min_freq/cpuinfo.max_freq aren't required as part of it is done by cpufreq driver or cpufreq core. Remove them. At some places we merge multiple lines together too. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * cpufreq: drivers: don't check range of target freq in .target()Viresh Kumar2013-04-021-9/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cpufreq core checks the range of target_freq before calling driver->target() and so we don't need to do it again. Remove it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * cpufreq: Notify all policy->cpus in cpufreq_notify_transition()Viresh Kumar2013-04-029-35/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | policy->cpus contains all online cpus that have single shared clock line. And their frequencies are always updated together. Many SMP system's cpufreq drivers take care of this in individual drivers but the best place for this code is in cpufreq core. This patch modifies cpufreq_notify_transition() to notify frequency change for all cpus in policy->cpus and hence updates all users of this API. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | Merge branch 'pm-cpuidle'Rafael J. Wysocki2013-04-2822-502/+121
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * pm-cpuidle: (51 commits) cpuidle: add maintainer entry ARM: s3c64xx: cpuidle: use init/exit common routine SH: cpuidle: use init/exit common routine cpuidle: fix comment format ARM: imx: cpuidle: use init/exit common routine ARM: davinci: cpuidle: use init/exit common routine ARM: kirkwood: cpuidle: use init/exit common routine ARM: calxeda: cpuidle: use init/exit common routine ARM: tegra: cpuidle: use init/exit common routine for tegra3 ARM: tegra: cpuidle: use init/exit common routine for tegra2 ARM: OMAP4: cpuidle: use init/exit common routine ARM: shmobile: cpuidle: use init/exit common routine ARM: tegra: cpuidle: use init/exit common routine ARM: OMAP3: cpuidle: use init/exit common routine ARM: at91: cpuidle: use init/exit common routine ARM: ux500: cpuidle: use init/exit common routine cpuidle: make a single register function for all ARM: ux500: cpuidle: replace for_each_online_cpu by for_each_possible_cpu cpuidle: remove en_core_tk_irqen flag ARM: OMAP3: remove cpuidle_wrap_enter ...
| | * | ARM: s3c64xx: cpuidle: use init/exit common routineDaniel Lezcano2013-04-261-13/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the duplicated code and use the cpuidle common code for initialization. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | ARM: imx: cpuidle: use init/exit common routineDaniel Lezcano2013-04-236-116/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code intializes the cpuidle driver at different places. The cpuidle driver for : * imx5 : is in the pm-imx5.c, the init function is in cpuidle.c * imx6 : is in cpuidle-imx6q.c, the init function is in cpuidle.c and cpuidle-imx6q.c Instead of having the cpuidle code spread across different files, let's create a driver for each SoC and use the common register function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | ARM: davinci: cpuidle: use init/exit common routineDaniel Lezcano2013-04-231-19/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the duplicated code and use the cpuidle common code for initialization. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | ARM: tegra: cpuidle: use init/exit common routine for tegra3Daniel Lezcano2013-04-231-26/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the duplicated code and use the cpuidle common code for initialization. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | ARM: tegra: cpuidle: use init/exit common routine for tegra2Daniel Lezcano2013-04-231-29/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the duplicated code and use the cpuidle common code for initialization. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | ARM: OMAP4: cpuidle: use init/exit common routineDaniel Lezcano2013-04-231-24/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the duplicated code and use the cpuidle common code for initialization. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Kevin Hilman <khilman@linaro.org> Tested-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | ARM: shmobile: cpuidle: use init/exit common routineDaniel Lezcano2013-04-231-9/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the duplicated code and use the cpuidle common code for initialization. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | ARM: tegra: cpuidle: use init/exit common routineDaniel Lezcano2013-04-231-25/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the duplicated code and use the cpuidle common code for initialization. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | ARM: OMAP3: cpuidle: use init/exit common routineDaniel Lezcano2013-04-231-20/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the duplicated code and use the cpuidle common code for initialization. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Kevin Hilman <khilman@linaro.org> Tested-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | ARM: at91: cpuidle: use init/exit common routineDaniel Lezcano2013-04-231-15/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the duplicated code and use the cpuidle common code for initialization. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | ARM: ux500: cpuidle: use init/exit common routineDaniel Lezcano2013-04-231-31/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the duplicate code and use the cpuidle common code for initialization. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | ARM: ux500: cpuidle: replace for_each_online_cpu by for_each_possible_cpuDaniel Lezcano2013-04-231-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All the drivers are using, in their initialization function, the for_each_possible_cpu macro. Using for_each_online_cpu means the driver must handle the initialization of the cpuidle device when a cpu is up which is not the case here. Change the macro to for_each_possible_cpu as that fix the hotplug initialization and make the initialization routine consistent with the rest of the code in the different drivers. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | cpuidle: remove en_core_tk_irqen flagDaniel Lezcano2013-04-2314-14/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The en_core_tk_irqen flag is set in all the cpuidle driver which means it is not necessary to specify this flag. Remove the flag and the code related to it. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Kevin Hilman <khilman@linaro.org> # for mach-omap2/* Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | ARM: OMAP3: remove cpuidle_wrap_enterDaniel Lezcano2013-04-221-21/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In a previous commit the en_core_tk_irqen flag has been added but we missed the cpuidle_wrap_enter which was doing the job to measure the time for the 'omap3_enter_idle' function. Actually, I don't see any reason to use this wrapper in the code. In the better case, the time computation is not correctly done because of the different operations done in omap3_enter_idle_bm which were not taken into account before the en_core_tk_irqen flag was set. As the time is reflected for the state overridden by the omap3_enter_idle_bm, using the wrapper is pointless now, so removing it. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Kevin Hilman <khilman@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | ARM: shmobile: cpuidle: remove shmobile_enter_wfi prototypeDaniel Lezcano2013-04-221-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 688036b538974de32ce55be8b0e013b003992abc removed the function 'shmobile_enter_wfi' but we forgot to remove the definition in the header file. Note this function is just an alias to 'cpu_do_idle()' wrapped into a cpuidle function callback prototype which already exists with the default WFI state and the arm_simple_enter function. Remove the function prototype. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | ARM: shmobile: cpuidle: remove shmobile_enter_wfi functionDaniel Lezcano2013-04-221-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the shmobile_enter_wfi function which is the same as the common WFI enter function from the arm cpuidle driver defined with the ARM_CPUIDLE_WFI_STATE macro. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | Merge tag 'omap-pm-v3.10/cleanup/cpuidle-v2' of ↵Rafael J. Wysocki2013-04-1049-171/+416
| | |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into pm-cpuidle OMAP CPUidle cleanups for v3.10 from Kevin Hilman
| | | * | ARM: OMAP4+: CPUidle: Consolidate idle driver for OMAP5 supportSantosh Shilimkar2013-04-091-15/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The OMAP5 idle driver can re-use most of OMAP4 CPUidle driver implementation. Also the next derivative SOCs are going to re-use the MPUSS so, same driver with minor updates can be re-used. Prepare the code so that its easier to add CPUidle support for OMAP5 devices. Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Kevin Hilman <khilman@linaro.org>
| | | * | ARM: OMAP4+: CPUidle: Deprecate use of omap4_mpuss_read_prev_context_state()Santosh Shilimkar2013-04-093-20/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current OMAP4 CPUIdle driver is using omap4_mpuss_read_prev_context_state() to check whether the MPU cluster lost context or not before calling cpu_cluster_pm_exit(). This was initially done an optimization for corner cases, where if the cluster low power entry fails for some reason, the cluster context restore gets skipped. However, since reading the previous context is expensive (involving slow accesses to the PRCM), it's better to avoid it and simply check the target cluster state instead. Moving forward, OMAP CPUidle drivers needs to be moved to drivers/idle/* once the PRM/CM code gets moved to drivers. This patch also reduces one dependency with platform code for idle driver movement. Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> [khilman@linaro.org: minor changelog edits] Signed-off-by: Kevin Hilman <khilman@linaro.org>
| | | * | ARM: OMAP4: CPUidle: Make C-state description field more preciseSantosh Shilimkar2013-04-091-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is useful to know the CPU power state along with MPUSS power state in a supported C-state. Since the data is available via sysfs, one can avoid scrolling the source code for precise construction of C-state. Reported-by: Nishanth Menon <nm@ti.com> Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Kevin Hilman <khilman@linaro.org>
| | | * | ARM: OMAP: CPUidle: Unregister drivere on device registration failureSantosh Shilimkar2013-04-092-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the CPUidle device registration fails for some reason, we should unregister the driver on error path. Fix the code accordingly. Also when at it, check of the driver registration failure too. Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Kevin Hilman <khilman@linaro.org>
| | | * | ARM: OMAP4: CPUidle: Avoid double idle driver registrationSantosh Shilimkar2013-04-091-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | OMAP4 CPUidle driver registration call is under a loop which leads to calling cpuidle_register_driver twice which is not intended. Fix it by moving the driver registration outside the loop. Reported-by: Nishanth Menon <nm@ti.com> Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Kevin Hilman <khilman@linaro.org>
| | | * | ARM: omap3: cpuidle: enable time keepingDaniel Lezcano2013-04-091-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The TIME_VALID flag is specified for the different states but the time residency computation is not done, no tk flag, no time computation in the idle function. Set the en_core_tk_irqen flag to activate it. Cc: stable@vger.kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Kevin Hilman <khilman@linaro.org>
| | | * | Merge branch 'pm-cpuidle-next' into linux-nextRafael J. Wysocki2013-04-084-66/+8
| | | |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * pm-cpuidle-next: cpuidle: imx6: remove timer broadcast initialization cpuidle: OMAP4: remove timer broadcast initialization cpuidle: ux500: remove timer broadcast initialization cpuidle: initialize the broadcast timer framework timer: move enum definition out of ifdef section cpuidle: kirkwood: fix coccicheck warnings cpuidle / kirkwood: remove redundant Kconfig option cpuidle / ux500 : use CPUIDLE_FLAG_TIMER_STOP flag cpuidle / imx6 : use CPUIDLE_FLAG_TIMER_STOP flag cpuidle / omap4 : use CPUIDLE_FLAG_TIMER_STOP flag cpuidle : handle clockevent notify from the cpuidle framework
| | * | | | ARM: omap3: cpuidle: enable time keepingDaniel Lezcano2013-04-081-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The TIME_VALID flag is specified for the different states but the time residency computation is not done, no tk flag, no time computation in the idle function. Set the en_core_tk_irqen flag to activate it. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | | ARM: davinci: cpuidle: fix wrong enter functionDaniel Lezcano2013-04-081-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The davinci_enter_idle is called from the cpuidle with the cpuidle_wrap_enter function. This one does the time compution for entering and exiting the idle function and then we call again cpuidle_wrap_enter for cpu_do_idle. This is wrong, we are calling recursively cpuidle_wrap_enter for nothing and furthermore reenabling the local irq. Remove this and replace it by the cpu_do_idle function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | | ARM: tegra: cpuidle: remove useless initializationDaniel Lezcano2013-04-083-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dev->state_count is initialized automatically by cpuidle_register_device(). When drv->state_count is equal to dev->state_count, no need to init this field, so removing it. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | | ARM: tegra2: cpuidle: change driver initializationDaniel Lezcano2013-04-081-20/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Initialize the idle states directly in the driver structure. That prevents extra structure declaration and memcpy at init time. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | | ARM: shmobile: cpuidle: remove useless WFI functionDaniel Lezcano2013-04-081-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the shmobile_enter_wfi function which is the same as the common WFI enter function from the arm cpuidle driver defined with the ARM_CPUIDLE_WFI_STATE macro. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | | ARM: shmobile: pm: fix init sectionsDaniel Lezcano2013-04-082-4/+4
| | | |/ / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the __init section for the functions which are called at init time. Signed-off-by: Daniel Lezcano <daniel.linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | cpuidle: imx6: remove timer broadcast initializationDaniel Lezcano2013-04-011-15/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The initialization is done from the cpuidle framework. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | cpuidle: OMAP4: remove timer broadcast initializationDaniel Lezcano2013-04-011-14/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The initialization is done from the cpuidle framework. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | cpuidle: ux500: remove timer broadcast initializationDaniel Lezcano2013-04-011-18/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The initialization is done from the cpuidle framework. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | cpuidle / kirkwood: remove redundant Kconfig optionDaniel Lezcano2013-04-011-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the CPU_IDLE and the ARCH_KIRKWOOD options are set it is pointless to define a new option CPU_IDLE_KIRKWOOD because it is redundant. The Makefile drivers directory contains a condition to compile the cpuidle drivers: obj-$(CONFIG_CPU_IDLE) += cpuidle/ Hence, if CPU_IDLE is not set we won't enter this directory. This patch removes the useless Kconfig option and replaces the condition in the Makefile by CONFIG_ARCH_KIRKWOOD. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | cpuidle / ux500 : use CPUIDLE_FLAG_TIMER_STOP flagDaniel Lezcano2013-04-011-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the CPUIDLE_FLAG_TIMER_STOP and let the cpuidle framework to handle the CLOCK_EVT_NOTIFY_BROADCAST_ENTER/EXIT when entering this state. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | cpuidle / imx6 : use CPUIDLE_FLAG_TIMER_STOP flagDaniel Lezcano2013-04-011-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the CPUIDLE_FLAG_TIMER_STOP and let the cpuidle framework to handle the CLOCK_EVT_NOTIFY_BROADCAST_ENTER/EXIT when entering this state. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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