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* sh: shmobile: convert to SPDX identifiersKuninori Morimoto2018-12-284-13/+5
| | | | | | | | | | | | | Update license to use SPDX-License-Identifier instead of verbose license text. Link: http://lkml.kernel.org/r/875zw8csxa.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Cc: Rich Felker <dalias@libc.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Replace <asm/uaccess.h> with <linux/uaccess.h> globallyLinus Torvalds2016-12-242-2/+2
| | | | | | | | | | | | | This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* cpuidle: Invert CPUIDLE_FLAG_TIME_VALID logicDaniel Lezcano2014-11-121-3/+0
| | | | | | | | | | | | | | | The only place where the time is invalid is when the ACPI_CSTATE_FFH entry method is not set. Otherwise for all the drivers, the time can be correctly measured. Instead of duplicating the CPUIDLE_FLAG_TIME_VALID flag in all the drivers for all the states, just invert the logic by replacing it by the flag CPUIDLE_FLAG_TIME_INVALID, hence we can set this flag only for the acpi idle driver, remove the former flag from all the drivers and invert the logic with this flag in the different governor. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* SH: cpuidle: Add missing parameter for cpuidle_register()Geert Uytterhoeven2013-08-121-3/+1
| | | | | | | | | | | | | | | arch/sh/kernel/cpu/shmobile/cpuidle.c: In function 'sh_mobile_setup_cpuidle': arch/sh/kernel/cpu/shmobile/cpuidle.c:102:2: error: too few arguments to function 'cpuidle_register' include/linux/cpuidle.h:129:12: note: declared here arch/sh/kernel/cpu/shmobile/cpuidle.c:94:6: warning: unused variable 'ret' [-Wunused-variable] Add the missing parameter, and remove the unused variable. Both introduced by commit b181a3b03f866776211f22390c185c4da1dc45ff ("SH: cpuidle: use init/exit common routine"). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* SH: cpuidle: use init/exit common routineDaniel Lezcano2013-04-241-6/+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>
* cpuidle: remove en_core_tk_irqen flagDaniel Lezcano2013-04-231-1/+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>
* SH: cpuidle: check error code at initDaniel Lezcano2013-04-222-5/+9
| | | | | | | | | Registering the driver, or the device, can fail, let's check the return code and return the error code to the PM layer. 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>
* SH: cpuidle: initialize the driver's states directlyDaniel Lezcano2013-04-221-50/+42
| | | | | | | | | | | | Like all the other drivers, let's initialize the structure a compile time instead of init time. The states #1 and #2 are not enabled by default. The init function will check the features of the board in order to enable the state. 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>
* SH: cpuidle: remove CPUIDLE_DRIVER_STATE_START usageDaniel Lezcano2013-04-221-4/+2
| | | | | | | | | | | | The CPUIDLE_DRIVER_STATE_START constant is only set when the kernel compilation option CONFIG_ARCH_HAS_CPU_RELAX is set, but this is only relatated to x86, so it is always zero. Remove the reference to this constant in the code. 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>
* SH: cpuidle: remove pointless initializationDaniel Lezcano2013-04-221-6/+0
| | | | | | | | | | The driver is a global static variable automatically initialized to zero. Removing the useless initialization in the init function. 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>
* Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-shLinus Torvalds2012-04-071-0/+1
|\ | | | | | | | | | | | | | | | | | | | | | | Pull SuperH fixes from Paul Mundt. * tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: sh: fix clock-sh7757 for the latest sh_mobile_sdhi driver serial: sh-sci: use serial_port_in/out vs sci_in/out. sh: vsyscall: Fix up .eh_frame generation. sh: dma: Fix up device attribute mismatch from sysdev fallout. sh: dwarf unwinder depends on SHcompact. sh: fix up fallout from system.h disintegration.
| * sh: fix up fallout from system.h disintegration.Paul Mundt2012-03-301-0/+1
| | | | | | | | | | | | Quite a bit of fallout all over the place, nothing terribly exciting. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | SH: shmobile: Consolidate time keeping and irq enableRobert Lee2012-03-211-7/+3
|/ | | | | | | | | | | Enable core cpuidle timekeeping and irq enabling and remove that handling from this code. Signed-off-by: Robert Lee <rob.lee@linaro.org> Reviewed-by: Kevin Hilman <khilman@ti.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: Len Brown <len.brown@intel.com>
* sh: cpuidle: Migrate off of hwblk API.Paul Mundt2011-11-181-2/+1
| | | | | | | | | Now that the hwblk API is unused and going away, migrate cpuidle off of it. This is a pretty straightforward migration given that we weren't really making use of the allowed mode overloading in the first place, so simply default to regular sleep mode. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Kill off remaining private runtime PM bits.Paul Mundt2011-11-182-322/+0
| | | | | | | This kills of the now unused runtime PM stub in favour of the generic one. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: sh7723: use runtime PM implementation, common with arm/mach-shmobileGuennadi Liakhovetski2011-11-181-1/+1
| | | | | | | | Switch sh7723 to a runtime PM implementation, common with ARM-based sh-mobile platforms. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: sh7722: use runtime PM implementation, common with arm/mach-shmobileGuennadi Liakhovetski2011-11-181-1/+1
| | | | | | | | Switch sh7722 to a runtime PM implementation, common with ARM-based sh-mobile platforms. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: sh7724: use runtime PM implementation, common with arm/mach-shmobileGuennadi Liakhovetski2011-11-181-0/+2
| | | | | | | | Switch sh7724 to a runtime PM implementation, common with ARM-based sh-mobile platforms. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Merge branch 'release' of ↵Linus Torvalds2011-11-071-11/+17
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: cpuidle: Single/Global registration of idle states cpuidle: Split cpuidle_state structure and move per-cpu statistics fields cpuidle: Remove CPUIDLE_FLAG_IGNORE and dev->prepare() cpuidle: Move dev->last_residency update to driver enter routine; remove dev->last_state ACPI: Fix CONFIG_ACPI_DOCK=n compiler warning ACPI: Export FADT pm_profile integer value to userspace thermal: Prevent polling from happening during system suspend ACPI: Drop ACPI_NO_HARDWARE_INIT ACPI atomicio: Convert width in bits to bytes in __acpi_ioremap_fast() PNPACPI: Simplify disabled resource registration ACPI: Fix possible recursive locking in hwregs.c ACPI: use kstrdup() mrst pmu: update comment tools/power turbostat: less verbose debugging
| * cpuidle: Single/Global registration of idle statesDeepthi Dharwar2011-11-061-7/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes the cpuidle_states structure global (single copy) instead of per-cpu. The statistics needed on per-cpu basis by the governor are kept per-cpu. This simplifies the cpuidle subsystem as state registration is done by single cpu only. Having single copy of cpuidle_states saves memory. Rare case of asymmetric C-states can be handled within the cpuidle driver and architectures such as POWER do not have asymmetric C-states. Having single/global registration of all the idle states, dynamic C-state transitions on x86 are handled by the boot cpu. Here, the boot cpu would disable all the devices, re-populate the states and later enable all the devices, irrespective of the cpu that would receive the notification first. Reference: https://lkml.org/lkml/2011/4/25/83 Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com> Signed-off-by: Trinabh Gupta <g.trinabh@gmail.com> Tested-by: Jean Pihet <j-pihet@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * cpuidle: Move dev->last_residency update to driver enter routine; remove ↵Deepthi Dharwar2011-11-061-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dev->last_state Cpuidle governor only suggests the state to enter using the governor->select() interface, but allows the low level driver to override the recommended state. The actual entered state may be different because of software or hardware demotion. Software demotion is done by the back-end cpuidle driver and can be accounted correctly. Current cpuidle code uses last_state field to capture the actual state entered and based on that updates the statistics for the state entered. Ideally the driver enter routine should update the counters, and it should return the state actually entered rather than the time spent there. The generic cpuidle code should simply handle where the counters live in the sysfs namespace, not updating the counters. Reference: https://lkml.org/lkml/2011/3/25/52 Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com> Signed-off-by: Trinabh Gupta <g.trinabh@gmail.com> Tested-by: Jean Pihet <j-pihet@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | sh: Add export.h to arch/sh specific files as required.Paul Gortmaker2011-10-311-0/+1
|/ | | | Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* PM / Domains: Rename struct dev_power_domain to struct dev_pm_domainRafael J. Wysocki2011-07-021-3/+3
| | | | | | | | | | | | | | | | | | The naming convention used by commit 7538e3db6e015e890825fbd9f86599b (PM: Add support for device power domains), which introduced the struct dev_power_domain type for representing device power domains, evidently confuses some developers who tend to think that objects of this type must correspond to "power domains" as defined by hardware, which is not the case. Namely, at the kernel level, a struct dev_power_domain object can represent arbitrary set of devices that are mutually dependent power management-wise and need not belong to one hardware power domain. To avoid that confusion, rename struct dev_power_domain to struct dev_pm_domain and rename the related pointers in struct device and struct pm_clk_notifier_block from pwr_domain to pm_domain. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Kevin Hilman <khilman@ti.com>
* sh: cosmetic improvement: use an existing pointerGuennadi Liakhovetski2011-05-231-3/+3
| | | | | | | | | | | Use an existing local variable, instead of calculating the pointer multiple times explicitly. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <damm@opensource.se> Reviewed-by: Simon Horman <horms@verge.net.au> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* shmobile: Use power domains for platform runtime PMRafael J. Wysocki2011-04-291-11/+22
| | | | | | | | | | | | | | | | | | | | | shmobile platforms replace the runtime PM callbacks of the platform bus type with their own routines, but this means that the callbacks are replaced system-wide. This may not be the right approach if the platform devices on the system are not of the same type (e.g. some of them belong to an SoC and the others are located in separate chips), because in those cases they may require different handling. Thus it is better to use power domains to override the platform bus type's PM handling, as it generally is possible to use different power domains for devices with different PM requirements. Define a default power domain for shmobile in both the SH and ARM falvors and use it to override the platform bus type's PM callbacks. Since the suspend and hibernate callbacks of the new "default" power domains need to be the same and the platform bus type's suspend and hibernate callbacks for the time being, export those callbacks so that can be used outside of the platform bus type code. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
* sh: Rename cpuidle states to fit general conventionsThomas Renninger2011-03-111-3/+3
| | | | | | | | | | | C0 is known as "busy", "not idle" state. X86 "busy polling" state also got renamed from C0 to "POLL" recently. Let's stay consistent with naming to avoid confusions. Signed-off-by: Thomas Renninger <trenn@suse.de> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Merge branch 'idle-release' of ↵Linus Torvalds2011-01-131-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 * 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6: cpuidle/x86/perf: fix power:cpu_idle double end events and throw cpu_idle events from the cpuidle layer intel_idle: open broadcast clock event cpuidle: CPUIDLE_FLAG_CHECK_BM is omap3_idle specific cpuidle: CPUIDLE_FLAG_TLB_FLUSHED is specific to intel_idle cpuidle: delete unused CPUIDLE_FLAG_SHALLOW, BALANCED, DEEP definitions SH, cpuidle: delete use of NOP CPUIDLE_FLAGS_SHALLOW cpuidle: delete NOP CPUIDLE_FLAG_POLL ACPI: processor_idle: delete use of NOP CPUIDLE_FLAGs cpuidle: Rename X86 specific idle poll state[0] from C0 to POLL ACPI, intel_idle: Cleanup idle= internal variables cpuidle: Make cpuidle_enable_device() call poll_idle_init() intel_idle: update Sandy Bridge core C-state residency targets
| * SH, cpuidle: delete use of NOP CPUIDLE_FLAGS_SHALLOWLen Brown2011-01-121-1/+0
| | | | | | | | | | | | set but not checked. Signed-off-by: Len Brown <len.brown@intel.com>
* | suspend: constify platform_suspend_opsLionel Debroux2010-11-161-1/+1
|/ | | | | | | | | | | | | | While at it, fix two checkpatch errors. Several non-const struct instances constified by this patch were added after the introduction of platform_suspend_ops in checkpatch.pl's list of "should be const" structs (79404849e90a41ea2109bd0e2f7c7164b0c4ce73). Patch against mainline. Inspired by hunks of the grsecurity patch, updated for newer kernels. Signed-off-by: Lionel Debroux <lionel_debroux@yahoo.fr> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* sh: SH-Mobile R-standby register save/restoreMagnus Damm2010-02-262-3/+121
| | | | | | | | Add code to save/restore registers during R-standby sleep on SH-Mobile processors. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: allow runtime pm without suspend/resume callbacksMagnus Damm2009-12-041-6/+11
| | | | | | | | | This patch updates the Runtime PM code for SuperH Mobile to allow drivers to have NULL as pm or callback value. With this in place there is no need for no-op functions. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add R-standby sleep mode supportMagnus Damm2009-10-302-7/+18
| | | | | | | Add R-standby specific bits to the SuperH Mobile sleep code. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Use RSMEM for sleep code on sh7724Magnus Damm2009-10-301-4/+8
| | | | | | | | Use RSMEM instead of ILMEM for sleep mode code storage on SH7724. This allows us to use R-standby mode on SH7724. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add MMU and Cache handling sleep mode codeMagnus Damm2009-10-302-0/+107
| | | | | | | | | | | | Add MMU and cache handling functionality to the SuperH Mobile sleep code. The MMU and cache registers are saved and restored. The MMU is disabled and the cache is flushed and disabled before entering sleep modes if the SUSP_SH_MMU flag is set. This flag should be set in the case of R-standby and most likely for future U-standby support as well. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Keep track of allowed sleep modesMagnus Damm2009-10-302-18/+31
| | | | | | | | | | Add code to keep track of supported sleep modes. This to only export cpuidle modes that are backed by board support code. Also, do not allow suspend-to-ram if sdram board code is missing. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Rework SuperH Mobile sleep mode codeMagnus Damm2009-10-302-164/+134
| | | | | | | | | | Rework the SuperH Mobile sleep code from including board specific code to allowing each board to provide pre/post code snippets. These snippets should contain sdram management code to enter and leave self-refresh. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Allow boards to register memory pre/post sleep codeMagnus Damm2009-10-301-0/+6
| | | | | | | | | | | Add code to allow boards registering self-contained functions for going to/from self-refresh. At this point the board code is unused. When all supported boards have been converted then the new sleep code will make use of these functions. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add notifiers chains for cpu/board codeMagnus Damm2009-10-301-0/+12
| | | | | | | | | | This patch adds atomic notifier chains for pre/post sleep events. Useful for cpu code and boards that need to save and restore register state before and after entering a sleep mode. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Merge branches 'sh/hwblk' and 'sh/pm-runtime'Paul Mundt2009-08-232-0/+304
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| * sh: Fix section mismatch in platform bus notifier.Paul Mundt2009-08-231-3/+2
| | | | | | | | | | | | | | | | The runtime PM for SH-Mobile code had platform_bus_notify() as __devinit, which is rather bogus. Kill off the annotation, which subsequently silences the section mismatch warnings. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Runtime PM for SuperH Mobile platform bus devicesMagnus Damm2009-08-232-0/+305
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is V3 of the SuperH Mobile Runtime PM platform bus implentation matching Rafael's Runtime PM v16. The code gets invoked from the SuperH specific Runtime PM platform bus functions that override the weak symbols for: - platform_pm_runtime_suspend() - platform_pm_runtime_resume() - platform_pm_runtime_idle() This Runtime PM implementation performs two levels of power management. At the time of platform bus runtime suspend the clock to the device is stopped instantly. Later on if all devices within the power domain has their clocks stopped then the device driver ->runtime_suspend() callbacks are used to save hardware register state for each device. Device driver ->runtime_suspend() calls are scheduled from cpuidle context using platform_pm_runtime_suspend_idle(). When all devices have been fully suspended the processor is allowed to enter deep sleep from cpuidle. The runtime resume operation turns on clocks and also restores registers if needed. It is worth noting that the devices start in a suspended state and the device driver is responsible for calling runtime resume before accessing the actual hardware. In this particular platform bus implementation runtime resume is not allowed from interrupt context. Runtime suspend is however allowed from interrupt context as long as the synchronous functions are avoided. [ updated for v17 -- PFM. ] Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: SuperH Mobile Software Standby support for cpuidleMagnus Damm2009-08-181-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds "SuperH Mobile Standby Mode [SF]" to the list of cpuidle sleep modes. If the software latency requirements from cpuidle are met together with fulfilled hardware requirements then deep sleep modes can be entered. Tested on sh7722 and sh7724 with "Sleep Mode", "Sleep Mode + SF" and "Software Standby Mode + SF" together with a multimedia work load and flood ping without packet drop. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: rework SuperH Mobile sleep code exception handlingMagnus Damm2009-08-182-64/+107
|/ | | | | | | | | | | | | | This patch updates the exception handling in the sleep code for SuperH Mobile. With the patch applied the sleep code always rewrites the VBR and resumes from the exception vector, re-initializes hardware and jumps straight to the original interrupt vector. Tested on sh7722 and sh7724 with "Sleep Mode", "Sleep Mode + SF" and "Software Standby Mode + SF" with CONFIG_SUSPEND. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Merge branch 'sh/stable-updates'Paul Mundt2009-08-151-2/+68
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| * sh: sh7724 ddr self-refresh changesMagnus Damm2009-08-151-2/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch updates the SuperH Mobile sleep assembly code with support for DBSC memory controller found in the sh7724 processor. Without this fix the memory hooked up to the sh7724 processor will never enter self-refresh mode before suspending to ram. The effect of this is that the memory contents most likeley will be lost upon resume which may or may not be what you want. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: cpuidle for SuperH Mobile using hwblkMagnus Damm2009-07-053-13/+116
|/ | | | | | | | | | | | | | | | | | | This patch adds cpuidle support for SuperH Mobile. The sleep mode selected by cpuidle is compared with the mode selected by the hwblk sleep code and the best allowed mode is entered. At this point "Sleep mode" and "Sleep mode + SF" are supported. This code can easily be extended to support "Software suspend mode", but the assembly code must first be updated to avoid loosing interrupts. Also, update the code to only copy the assembly snippet into internal memory once at bootup. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Consolidate SH-Mobile CPU code in arch/sh/kernel/cpu/shmobile/.Paul Mundt2009-03-163-0/+223
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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