UART usage (e.g. serial console) now denies sleep for 5 seconds. This
makes it possible to use serial console when dynamic idle is enabled.
Also moved code from pm-debug.c to serial.c, and made pm24xx.c use this
new implementation.
Signed-off-by: Tero Kristo [EMAIL PROTECTED]
---
arch/arm/mach
This hack will most importantly allow serial console usage when dynamic
idle is enabled.
Note! Functionality under 24xx configuration has not been verified!
There may be some problems with CONFIG_PM_DEBUG flag enabled,
most likely during the PM debug information dumps after / before
This patch depends on the PM patch set sent by Jouni Hogander. Basically just a
cosmetic modification to make fclk mask look more nice inside pm34xx.c.
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Signed-off-by: Tero Kristo [EMAIL PROTECTED]
---
arch/arm/mach-omap2/pm34xx.c |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index ada87ba..2574586 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach
Hi,
This patch set contains some experimental fixes for the cpu-idle support from
Rajendra Nayak. With this patch set, all power domains enter OFF mode and
recover from it, at least while using suspend and/or dynamic idle. If you
are using these patches, you should disable CPU_IDLE support from
On OMAP3 SoCs, if the CORE powerdomain enters off-mode, many other
parts of the chip will be reset. If those parts of the chip are busy,
the reset will disrupt them, causing unpredictable and generally
undesirable results.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
Cc: Paul Walmsley p
), and it can occur for example in a case where
some peripheral domain is in retention or inactive state and core
enters off. This will result in the peripheral domain being reset.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
Cc: Paul Walmsley p...@pwsan.com
Cc: Kevin Hilman khil...@deeprootsystems.com
From: Tero Kristo tero.kri...@nokia.com
Previously omap_sram_idle() did not know about the difference between ON and
INACTIVE states, which complicated the state handling in these cases. Now,
the following changes are done in the idle logic:
- Check for IO-chain arming is changed to reflect
From: Tero Kristo tero.kri...@nokia.com
pwrdm_can_idle(pwrdm) will check if the specified powerdomain can enter
idle. This is done by checking all clockdomains under the powerdomain
if they can idle also.
omap2_clkdm_can_idle(clkdm) will check if the specified clockdomain can
enter idle
From: Tero Kristo tero.kri...@nokia.com
Following checks are made (and their reasoning):
- If CAM domain is active, prevent idle completely
* CAM pwrdm does not have HW wakeup capability
- If PER is likely to remain on, prevent PER off
* Saves on unnecessary context save/restore
- If CORE
From: Tero Kristo tero.kri...@nokia.com
New powerdomain code support for INACTIVE state removes the need to control
clockdomains directly from cpuidle. Also, cpuidle state definitions can now
directly support ON / INACTIVE simplifying the implementation.
Signed-off-by: Tero Kristo tero.kri
From: Tero Kristo tero.kri...@nokia.com
Improvements / fixes compared to previous version:
- Added pwrdm next_state cache initialization to patch 1
- Fixed changelog for patch 1
- Added FCLK checks to patch 5 (now checks both idlest and fclk)
- Added more info to changelog for patch 5
-Tero
From: Tero Kristo tero.kri...@nokia.com
Following hacks will be moved inside cpuidle in subsequent patch:
- CAM domain prevents idle completely
- PER should not go OFF if core remains active
This simplifies the design and allows cpuidle to keep better track of which
power states system
From: Tero Kristo tero.kri...@nokia.com
Currently only ON, RET and OFF are supported, and ON is arguably broken as it
allows the powerdomain to enter INACTIVE state unless idle is prevented.
Now, pwrdm code prevents idle if ON is selected, and also adds support for
INACTIVE. This simplifies
From: Tero Kristo tero.kri...@nokia.com
Following hacks will be moved inside cpuidle in subsequent patch:
- CAM domain prevents idle completely
- PER should not go OFF if core remains active
This simplifies the design and allows cpuidle to keep better track of which
power states system
From: Tero Kristo tero.kri...@nokia.com
Following checks are made (and their reasoning):
- If CAM domain is active, prevent idle completely
* CAM pwrdm does not have HW wakeup capability
- If PER is likely to remain on, prevent PER off
* Saves on unnecessary context save/restore
- If CORE
From: Tero Kristo tero.kri...@nokia.com
New powerdomain code support for INACTIVE state removes the need to control
clockdomains directly from cpuidle. Also, cpuidle state definitions can now
directly support ON / INACTIVE simplifying the implementation.
Signed-off-by: Tero Kristo tero.kri
From: Tero Kristo tero.kri...@nokia.com
omap2_clkdm_get_hwsup(clkdm) can be used to check if automatic HW
transitions for the domain are enabled or not. This is needed for the
powerdomain code that adds support for INACTIVE state, as it needs to
disable HWSUP on the fly for ON state, and re
From: Tero Kristo tero.kri...@nokia.com
Currently only ON, RET and OFF are supported, and ON is arguably broken as it
allows the powerdomain to enter INACTIVE state unless idle is prevented.
Now, pwrdm code prevents idle if ON is selected and hardware supervised
mode for the underlying
From: Tero Kristo tero.kri...@nokia.com
Added definitions for OMAP3430ES2_ST_SGX_SHIFT and OMAP3430ES2_ST_SGX_MASK
as these were missing.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
---
arch/arm/mach-omap2/cm-regbits-34xx.h |4
1 files changed, 4 insertions(+), 0 deletions
From: Tero Kristo tero.kri...@nokia.com
Previously omap_sram_idle() did not know about the difference between ON and
INACTIVE states, which complicated the state handling in these cases. Now,
the following changes are done in the idle logic:
- Check for IO-chain arming is changed to reflect
From: Tero Kristo tero.kri...@nokia.com
pwrdm_can_idle(pwrdm) will check if the specified powerdomain can enter
idle. This is done by checking all clockdomains under the powerdomain
if they can idle also.
omap2_clkdm_can_idle(clkdm) will check if the specified clockdomain can
enter idle
From: Tero Kristo tero.kri...@nokia.com
Only RX interrupt will now kick the sleep prevent timer. In addition, TX
fifo status is checked before disabling clocks, this will prevent occasional
garbage being printed on serial line. Smartidle is also disabled while
entering idle if we have data
From: Tero Kristo tero.kri...@nokia.com
Improvements compared to previous version:
- Removed hacks from generic powerdomain code, instead added support
routines for OMAP3, which are used by pm34xx.c and cpuidle34xx.c, these
support routines only touch mpu, core and neon powerdomains
- Bug
From: Tero Kristo tero.kri...@nokia.com
Previously omap_sram_idle() did not know about the difference between ON and
INACTIVE states, which complicated the state handling in these cases. Now,
the following changes are done in the idle logic:
- Check for IO-chain arming is changed to reflect
From: Tero Kristo tero.kri...@nokia.com
Added omap3_pwrdm_set_next_pwrst and omap3_pwrdm_read_next_pwrst. These
functions add support for INACTIVE and ON states to the standard OMAP
powerdomain functions, and add caching logic for the next state. These
functions are used in subsequent patches
From: Tero Kristo tero.kri...@nokia.com
pwrdm_can_idle(pwrdm) will check if the specified powerdomain can enter
idle. This is done by checking all clockdomains under the powerdomain
if they can idle also.
omap2_clkdm_can_idle(clkdm) will check if the specified clockdomain can
enter idle
From: Tero Kristo tero.kri...@nokia.com
New powerdomain support code for INACTIVE state removes the need to control
clockdomains directly from cpuidle. Also, cpuidle state definitions can now
directly support ON / INACTIVE simplifying the implementation.
Signed-off-by: Tero Kristo tero.kri
From: Tero Kristo tero.kri...@nokia.com
Added definitions for OMAP3430ES2_ST_SGX_SHIFT and OMAP3430ES2_ST_SGX_MASK
as these were missing.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
---
arch/arm/mach-omap2/cm-regbits-34xx.h |4
1 files changed, 4 insertions(+), 0 deletions
From: Tero Kristo tero.kri...@nokia.com
Following checks are made (and their reasoning):
- If CAM domain is active, prevent idle completely
* CAM pwrdm does not have HW wakeup capability
- If PER is likely to remain on, prevent PER off
* Saves on unnecessary context save/restore
- If CORE
From: Tero Kristo tero.kri...@nokia.com
With the new support functions this is now possible. Suspending to INACTIVE
is useful for testing purposes.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
---
arch/arm/mach-omap2/pm34xx.c | 11 ++-
1 files changed, 6 insertions(+), 5 deletions
From: Tero Kristo tero.kri...@nokia.com
Following hacks will be moved inside cpuidle in subsequent patch:
- CAM domain prevents idle completely
- PER should not go OFF if core remains active
This simplifies the design and allows cpuidle to keep better track of which
power states system
From: Tero Kristo tero.kri...@nokia.com
If off-mode is disabled, cpuidle now falls back to proper C state. Previously
the state was just simply hacked inside omap3_enter_idle which resulted
in wrong state residencies to be reported.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
---
arch/arm
From: Tero Kristo tero.kri...@nokia.com
This patch contains following improvements:
- Only RX interrupt will now kick the sleep prevent timer
- TX fifo status is checked before disabling clocks, this will prevent
on-going transmission to be cut
- Smartidle is disabled while entering idle if we
From: Tero Kristo tero.kri...@nokia.com
This patch contains following improvements:
- Only RX interrupt will now kick the sleep prevent timer
- TX fifo status is checked before disabling clocks, this will prevent
on-going transmission to be cut
- Smartidle is disabled while entering idle if we
From: Tero Kristo tero.kri...@nokia.com
This patch contains following improvements:
- Only RX interrupt will now kick the sleep prevent timer
- TX fifo status is checked before disabling clocks, this will prevent
on-going transmission to be cut
- Smartidle is now enabled/disabled only while
From: Tero Kristo tero.kri...@nokia.com
Previously omap_sram_idle() did not know about the difference between ON and
INACTIVE states, which complicated the state handling in these cases. Now,
the following changes are done in the idle logic:
- Check for IO-chain arming is changed to reflect
From: Tero Kristo tero.kri...@nokia.com
New powerdomain support code for INACTIVE state removes the need to control
clockdomains directly from cpuidle. Also, cpuidle state definitions can now
directly support ON / INACTIVE simplifying the implementation.
Signed-off-by: Tero Kristo tero.kri
From: Tero Kristo tero.kri...@nokia.com
Added definitions for OMAP3430ES2_ST_SGX_SHIFT and OMAP3430ES2_ST_SGX_MASK
as these were missing.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
---
arch/arm/mach-omap2/cm-regbits-34xx.h |4
1 files changed, 4 insertions(+), 0 deletions
From: Tero Kristo tero.kri...@nokia.com
Following hacks will be moved inside cpuidle in subsequent patch:
- CAM domain prevents idle completely
- PER should not go OFF if core remains active
This simplifies the design and allows cpuidle to keep better track of which
power states system
From: Tero Kristo tero.kri...@nokia.com
pwrdm_can_idle(pwrdm) will check if the specified powerdomain can enter
idle. This is done by checking all clockdomains under the powerdomain
if they can idle also.
omap2_clkdm_can_idle(clkdm) will check if the specified clockdomain can
enter idle
From: Tero Kristo tero.kri...@nokia.com
With the new support functions this is now possible. Suspending to INACTIVE
is useful for testing purposes.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
---
arch/arm/mach-omap2/pm34xx.c | 11 ++-
1 files changed, 6 insertions(+), 5 deletions
From: Tero Kristo tero.kri...@nokia.com
Following checks are made (and their reasoning):
- If CAM domain is active, prevent idle completely
* CAM pwrdm does not have HW wakeup capability
- If PER is likely to remain on, prevent PER off
* Saves on unnecessary context save/restore
- If CORE
From: Tero Kristo tero.kri...@nokia.com
This patch contains following improvements:
- Only RX interrupt will now kick the sleep prevent timer
- TX fifo status is checked before disabling clocks, this will prevent
on-going transmission to be cut
- Smartidle is now enabled/disabled only while
From: Tero Kristo tero.kri...@nokia.com
This patch contains following improvements:
- Only RX interrupt will now kick the sleep prevent timer
- TX fifo status is checked before disabling clocks, this will prevent
on-going transmission to be cut
- Smartidle is now enabled/disabled only while
From: Tero Kristo tero.kri...@nokia.com
This set is now missing following patches compared to the previous set:
- IVA2 suspend fix
- Dynamic check for core target state
- Block core off when DSS active
- Next state check for IVA2, USB and PER
- USBHOST powerdomain force to sleep after warm reset
From: Tero Kristo tero.kri...@nokia.com
Smartreflex for the corresponding powerdomain (MPU/CORE) must be disabled
before the domain enters retention, otherwise the device may hang. This is
caused by overlapping smartreflex / auto retention command on the voltage
channel resulting in incorrect
From: Tero Kristo tero.kri...@nokia.com
Suspending drivers may still generate interrupts just before their suspend is
completed. Any pending interrupts here will prevent sleep.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
---
arch/arm/mach-omap2/irq.c |6 ++
arch/arm
From: Tero Kristo tero.kri...@nokia.com
OMAP GP timers keep running for a few cycles after they are stopped,
which can cause the timer to expire and generate an interrupt. The pending
interrupt will prevent e.g. OMAP from entering suspend, thus we ack it
manually.
Signed-off-by: Tero Kristo
From: Tero Kristo tero.kri...@nokia.com
OMAP interrupt controller goes to unknown state when there is right
combination of l3,l4 sleep/wake-up transitions, l4 autoidle in
interrupt controller and some interrupt. When this happens, interrupts
are not delivered to ARM anymore and ARM will remain
From: Tero Kristo tero.kri...@nokia.com
Current value is stored on SDRAM and it is written back during wakeup.
Previously a static value of 0x72 was written there.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
Signed-off-by: Jouni Hogander jouni.hogan...@nokia.com
---
arch/arm/mach-omap2
From: Tero Kristo tero.kri...@nokia.com
Repeated start forces I2C4 pads low during idle, which increases power
consumption through external pull-ups. On the other hand, this change
increases I2C4 command latencies a bit.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
---
arch/arm/mach-omap2
From: Tero Kristo tero.kri...@nokia.com
This saves some power.
Signed-off-by: Mika Westerberg ext-mika.1.westerb...@nokia.com
---
arch/arm/mach-omap2/pm34xx.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
From: Tero Kristo tero.kri...@nokia.com
This patch adds a save and restore mechanism for ARM L2 auxiliary control
register. This feature is enabled via Kconfig option
OMAP3_L2_AUX_SECURE_SAVE_RESTORE and the service ID for PPA can be provided
via option OMAP3_L2_AUX_SECURE_SERVICE_SET_ID
From: Tero Kristo tero.kri...@nokia.com
It is suggested by TI (SWPA152 February 2009) to write clksetup,
voltsetup_time1, voltsetup_time2, voltsetup2 dynamically in idle loop.
This allows us to optimize the voltage + clock setup times according to the
used power save mode.
Signed-off-by: Tero
From: Carlos Chinea carlos.chi...@nokia.com
Previously the operator precedence dictated that the delay loop was exited
immediately, potentially causing off-mode to be entered too soon.
Signed-off-by: Carlos Chinea carlos.chi...@nokia.com
Signed-off-by: Jouni Hogander jouni.hogan...@nokia.com
---
From: Tero Kristo tero.kri...@nokia.com
Previously used u32 as temporary data storage that wraps around at 4.294s.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
---
arch/arm/mach-omap2/cpuidle34xx.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2
From: De-Schrijver Peter peter.de-schrij...@nokia.com
C2 can't be entered while we have bus activity.
Signed-off-by: Peter 'p2' De Schrijver peter.de-schrij...@nokia.com
---
arch/arm/mach-omap2/cpuidle34xx.c |7 ---
1 files changed, 4 insertions(+), 3 deletions(-)
diff --git
From: Tero Kristo tero.kri...@nokia.com
Following patches apply on top of PM branch. They implement a couple of
small fixes for cpuidle. Timer resolution patch probably does not change
anything until kernel cpuidle is fixed to support longer timers (there are
some pending patches
From: Kalle Jokiniemi kalle.jokini...@digia.com
sdrc_ps_to_ticks introduced some unnecessary
rounding error to SDRC_RFR value calculation.
Fixed by adding 10^3 more accuracy before
division and skipping the sdrc_ps_to_ticks call.
Problem-reported-by: Jukka S. Laitinen jukka.s.laiti...@nokia.com
From: Tero Kristo tero.kri...@nokia.com
This modification is needed by DVFS.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
Signed-off-by: Jouni Hogander jouni.hogan...@nokia.com
---
arch/arm/mach-omap2/board-rx51-sdram.c | 84 ++--
1 files changed, 47 insertions
From: Tero Kristo tero.kri...@nokia.com
Following patch set fixes a few issues with current RX51 board SDRAM settings.
Applies on top of PM branch.
-Tero
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From: Onkalo Samu.P samu.p.onk...@nokia.com
Current memory parameters are slightly off-spec. Also, a couple of unused
functions removed from code.
Signed-off-by: Samu Onkalo samu.p.onk...@nokia.com
---
arch/arm/mach-omap2/board-rx51-sdram.c | 130 ++--
1 files
From: Tero Kristo tero.kri...@nokia.com
Removed a few unused functions + macro definitions + variables from the code.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
---
arch/arm/mach-omap2/board-rx51-sdram.c | 51
1 files changed, 0 insertions(+), 51
From: Tero Kristo tero.kri...@nokia.com
This patch adds board specific SDRAM init for RX51. This patch is a
collaboration of work from following people:
Juha Yrjola: Original code
Lauri Leukkunen: Port to RX51
Tero Kristo: Support for multiple OPP:s, merge of patches
Samu Onkalo: Fixed SDRAM
From: Tero Kristo tero.kri...@nokia.com
Current calculation does not take into account any changes to M2 divisor, and
thus when we change VDD2 OPP, dpll3_m2x2 rate does not change. Fixed by
re-routing dpll3_m2x2 parent to dpll3_m2.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
---
arch/arm
From: Tero Kristo tero.kri...@nokia.com
Current value is stored on SDRAM and it is written back during wakeup.
Previously a static value of 0x72 was written there.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
---
arch/arm/mach-omap2/sleep34xx.S | 13 +
1 files changed, 9
From: Tero Kristo tero.kri...@nokia.com
It is suggested by TI (SWPA152 February 2009) to write clksetup,
voltsetup_time1, voltsetup_time2, voltsetup2 dynamically in idle loop.
This allows us to optimize the voltage + clock setup times according to the
used power save mode.
Signed-off-by: Tero
From: Tero Kristo tero.kri...@nokia.com
OMAP3 sleep can be prevented in some cases where OTG autoidle is enabled.
This patch force disables autoidle during wakeup from off-mode. See omap
errata 1.164.
This fix can't be done in driver level, as off-mode entry resets and enables
the autoidle bit
From: Tero Kristo tero.kri...@nokia.com
This patch adds a save and restore mechanism for ARM L2 auxiliary control
register. The feature is enabled by default for GP devices, but for HS/EMU
devices the user must enable the service and define the PPA service ID to
be used for setting L2 aux ctrl
From: Tero Kristo tero.kri...@nokia.com
This set contains following changes compared to previous one:
1) Removed accepted patches
2) ARM aux ctrl and L2 aux ctrl register save/restore uses now arm_context
as save area
3) Added more detail to I2C4 repeated start disable fix description
4
From: Tero Kristo tero.kri...@nokia.com
Repeated start forces I2C4 pads low during idle, which increases power
consumption through external pull-ups. On the other hand, this change
increases I2C4 command latencies somewhat due to additional master code
sent in the beginning of each I2C4 command
From: Tero Kristo tero.kri...@nokia.com
Following set implements checks for idle states of powerdomains, and
changes target cpuidle state according to those. This also includes as
a cleanup removal of some hacks from omap_sram_idle(), and also introduces
INACTIVE / ON state support
From: Tero Kristo tero.kri...@nokia.com
This should be moved inside cpuidle to simplify design.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
---
arch/arm/mach-omap2/pm34xx.c | 18 ++
1 files changed, 2 insertions(+), 16 deletions(-)
diff --git a/arch/arm/mach-omap2
From: Tero Kristo tero.kri...@nokia.com
Previously omap_sram_idle() did not know about the difference between ON and
INACTIVE states, which complicated the state handling in these cases.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
---
arch/arm/mach-omap2/pm34xx.c | 14 +++---
1
From: Tero Kristo tero.kri...@nokia.com
Following checks are made (and their reasoning):
- If CAM domain is active, prevent idle completely
* CAM pwrdm does not have HW wakeup capability
- If PER is likely to remain on, prevent PER off
* Saves on unnecessary context save/restore
- If CORE
From: Tero Kristo tero.kri...@nokia.com
Currently only ON, RET and OFF are supported, and ON is arguably broken as it
allows the powerdomain to enter INACTIVE state unless idle is prevented.
Now, pwrdm code prevents idle if ON is selected, and also adds support for
INACTIVE. This simplifies
From: Tero Kristo tero.kri...@nokia.com
New powerdomain code support for INACTIVE state removes the need to control
clockdomains directly from cpuidle. Also, cpuidle state definitions can now
directly support ON / INACTIVE simplifying the implementation.
Signed-off-by: Tero Kristo tero.kri
From: Tero Kristo tero.kri...@nokia.com
pwrdm_can_idle(pwrdm) will check if the specified powerdomain can enter
idle. This is done by checking the current fclk enable bits.
This call can be used e.g. inside cpuidle to decide which power states
core and mpu should enter during idle
From: Tero Kristo tero.kri...@nokia.com
These two patches add support for VFP context save and restore. These patches
are a collaboration from several people (listed in CC), I have mainly
split the original patch in two parts (one generic ARM, one for OMAP3 PM),
and optimized the code a bit
From: Tero Kristo tero.kri...@nokia.com
VFP save context is called before MPU/NEON off. Restore is not needed as
the next VFP trap will restore context automatically. Uses the support
routine implemented in arch/arm/vfp/vfpmodule.c.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
Cc: Vishwanath
From: Tero Kristo tero.kri...@nokia.com
In some ARM architectures, like OMAP3, the VFP context can be lost during
dynamic sleep cycle. For this purpose, there is now a function
vfp_pm_save_context() that should be called before the VFP is assumed to
lose context. Next VFP trap will then restore
From: Tero Kristo tero.kri...@nokia.com
VFP save context is called before MPU/NEON off. Restore is not needed as
the next VFP trap will restore context automatically. Uses the support
routine implemented in arch/arm/vfp/vfpmodule.c.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
Acked-by: Tony
From: Tero Kristo tero.kri...@nokia.com
Hi,
The following two patches are needed by OMAP3 to save/restore VFP context
during off-mode. Patch 1 adds generic support inside ARM VFP code, and the
second one adds the necessary hooks into OMAP3 power management code.
--Tero
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To unsubscribe from
From: Tero Kristo tero.kri...@nokia.com
In some ARM architectures, like OMAP3, the VFP context can be lost during
dynamic sleep cycle. For this purpose, there is now a function
vfp_pm_save_context() that should be called before the VFP is assumed to
lose context. Next VFP trap will then restore
From: Tero Kristo tero.kri...@nokia.com
VFP save context is called before MPU/NEON off. Restore is not needed as
the next VFP trap will restore context automatically. Uses the support
routine implemented in arch/arm/vfp/vfpmodule.c.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
Cc: Vishwanath
From: Tero Kristo tero.kri...@nokia.com
In some ARM architectures, like OMAP3, the VFP context can be lost during
dynamic sleep cycle. For this purpose, there is now a function
vfp_pm_save_context() that should be called before the VFP is assumed to
lose context. Next VFP trap will then restore
From: Tero Kristo tero.kri...@nokia.com
Contains following fixes compared to previous version:
- vfp_pm_suspend uses the same routine as context save
- uses get_cpu / put_cpu to get current CPU id
- removed restore context call completely from OMAP3 idle (not needed)
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From: Tero Kristo tero.kri...@nokia.com
Previously omap_sram_idle() did not know about the difference between ON and
INACTIVE states, which complicated the state handling in these cases. Now,
the following changes are done in the idle logic:
- Check for IO-chain arming is changed to reflect
From: Tero Kristo tero.kri...@nokia.com
Improvements compared to previous set:
- Fixed wrong pwrdm state check on IO chain arming on patch 2
- Improved changelog on patch 2 4
- Moved FCLK checks inside clockdomain code from powerdomain code in patch 5
- Some style changes on patch 6
Still, I
From: Tero Kristo tero.kri...@nokia.com
Currently only ON, RET and OFF are supported, and ON is arguably broken as it
allows the powerdomain to enter INACTIVE state unless idle is prevented.
Now, pwrdm code prevents idle if ON is selected, and also adds support for
INACTIVE. This simplifies
From: Tero Kristo tero.kri...@nokia.com
Following hacks will be moved inside cpuidle in subsequent patch:
- CAM domain prevents idle completely
- PER should not go OFF if core remains active
This simplifies the design and allows cpuidle to keep better track of which
power states system
From: Tero Kristo tero.kri...@nokia.com
pwrdm_can_idle(pwrdm) will check if the specified powerdomain can enter
idle. This is done by checking all clockdomains under the powerdomain
if they can idle also.
omap2_clkdm_can_idle(clkdm) will check if the specified clockdomain can
enter idle
From: Tero Kristo tero.kri...@nokia.com
New powerdomain code support for INACTIVE state removes the need to control
clockdomains directly from cpuidle. Also, cpuidle state definitions can now
directly support ON / INACTIVE simplifying the implementation.
Signed-off-by: Tero Kristo tero.kri
From: Tero Kristo tero.kri...@nokia.com
Following checks are made (and their reasoning):
- If CAM domain is active, prevent idle completely
* CAM pwrdm does not have HW wakeup capability
- If PER is likely to remain on, prevent PER off
* Saves on unnecessary context save/restore
- If CORE
From: Tero Kristo tero.kri...@nokia.com
Current warning messages will be constantly printed out during normal operation
if smartreflex autocompensation is disabled.
Signed-off-by: Tero Kristo tero.kri...@nokia.com
---
arch/arm/mach-omap2/smartreflex.c | 10 +-
1 files changed, 1
Noncore dpll can enter autoidle state, in which case the rate calculation
fails. Fixed by checking dpll mode instead of idle status.
Signed-off-by: Tero Kristo [EMAIL PROTECTED]
---
arch/arm/mach-omap2/clock.c | 16 +++-
arch/arm/mach-omap2/cm-regbits-34xx.h |2 ++
2
These registers are now also saved:
CM_CLKSEL4
CM_CLKEN
CM_CLKEN2
Signed-off-by: Tero Kristo [EMAIL PROTECTED]
---
arch/arm/mach-omap2/prcm.c | 14 ++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach
Signed-off-by: Tero Kristo [EMAIL PROTECTED]
---
arch/arm/plat-omap/gpio.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index f4ec3af..62349fd 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap
Target state can be read / programmed via files under:
[debugfs]/pm_debug/[pwrdm]/suspend
Signed-off-by: Tero Kristo [EMAIL PROTECTED]
---
arch/arm/mach-omap2/pm-debug.c | 30 --
arch/arm/mach-omap2/pm.h |4
arch/arm/mach-omap2/pm34xx.c | 24
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