- 12 11月, 2009 29 次提交
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由 Tero Kristo 提交于
OMAP3 can't generate wakeups in this state, thus it is not permitted. Signed-off-by: NTero Kristo <tero.kristo@nokia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Kevin Hilman 提交于
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Kevin Hilman 提交于
Using debugfs, export a configurable wakeup timer to be used to wakeup system from suspend. If a non-zero value is written to /debug/pm_debug/wakeup_timer_seconds, A timer wakeup event will wake the system and resume after the configured number of seconds. Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Kevin Hilman 提交于
Allow enable/disable of low-power states during idle. To enable low-power idle: echo 1 > /debug/pm_debug/sleep_while_idle to disable: echo 0 > /debug/pm_debug/sleep_while_idle Also allow enable/disable of OFF-mode. To enable: echo 1 > /debug/pm_debug/enable_off_mode to disable: echo 0 > /debug/pm_debug/enable_off_mode Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Peter 'p2' De Schrijver 提交于
This patch improves the wakeup SRAM code polling the SDRC to become ready instead of just waiting for a fixed amount of time. Signed-off-by: NPeter 'p2' De Schrijver <peter.de-schrijver@nokia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Kalle Jokiniemi 提交于
The hardware SAVEANDRESTORE mechanism seems to leave USB HOST power domain permanently into active state after one transition from off to active state. Disabling for now. Signed-off-by: NKalle Jokiniemi <ext-kalle.jokiniemi@nokia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Aaro Koskinen 提交于
Wrong index was used for ILR. Signed-off-by: NAaro Koskinen <Aaro.Koskinen@nokia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Tero Kristo 提交于
Errata: ES3.0, ES3.1 SDRC not sending auto-refresh when OMAP wakes-up from OFF mode Signed-off-by: NTero Kristo <tero.kristo@nokia.com> Signed-off-by: NKalle Jokiniemi <kalle.jokiniemi@digia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Juha Yrjola 提交于
The reboot mode can be communicated to a bootloader (or the kernel itself) with a scratchpad register. This functionality is especially useful, if userspace is allowed to change the reboot mode. Signed-off-by: NJuha Yrjola <juha.yrjola@solidboot.com> Signed-off-by: NTony Lindgren <tony@atomide.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Aaro Koskinen 提交于
Clear DMA channel states so that users can assume a known initial state. Signed-off-by: NAaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Kalle Jokiniemi 提交于
The CM_CLKEN_PLL register saved in scratchpad memory was wrongly using offset of 0x0004 instead of 0x0000. The effect of this was that boot ROM code would restore the wrong value when waking up from off mode. This wrong value, however, will be overwritten by prcm context restore. Still, a short period of wrong clock settings in CM_CLKEN_PLL remained between ROM code and prcm context restore. This is fixed by the patch. Problem reported by: Jouni Hogander <jouni.hogander@nokia.com> Signed-off-by: NKalle Jokiniemi <kalle.jokiniemi@digia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Kalle Jokiniemi 提交于
The SMS_SYSCONFIG register gets reset in off mode, added a save/restore mechanism for that. Signed-off-by: NKalle Jokiniemi <kalle.jokiniemi@digia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Kalle Jokiniemi 提交于
The secure sram context save uses dma channels 0 and 1. In order to avoid collision between kernel DMA transfers and ROM code dma transfers, we need to reserve DMA channels 0 1 on high security devices. A bug in ROM code leaves dma irq status bits uncleared. Hence those irq status bits need to be cleared when restoring DMA context after off mode. There was also a faulty parameter given to PPA in the secure ram context save assembly code, which caused interrupts to be enabled during secure ram context save. This caused the save to fail sometimes, which resulted the saved context to be corrupted, but also left DMA channels in secure mode. The secure mode DMA channels caused "DMA secure error with device 0" errors to be displayed. Signed-off-by: NKalle Jokiniemi <kalle.jokiniemi@digia.com> Signed-off-by: NJouni Hogander <jouni.hogander@nokia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Jouni Hogander 提交于
CM_CLKSEL1_PLL_IVA2 is not saved/restored currently. This patch is adding save and restore for it. Signed-off-by: NJouni Hogander <jouni.hogander@nokia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Tero Kristo 提交于
Fix for ES3.0 bug: SDRC not sending auto-refresh when OMAP wakes-up from OFF mode (warning for HS devices.) Signed-off-by: NTero Kristo <tero.kristo@nokia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Tero Kristo 提交于
The function omap3_save_secure_ram() is now called only once during the initialization of the device and consequent sleep cycles will re-use the same saved contents for secure RAM. Users who need secure services should do secure RAM saving before entering off-mode, if a secure service has been accessed after last save. There are both latency and reliability issues with saving secure RAM context in the idle path. The context save uses a hardware resource which takes an order of hundreds of milliseconds to initialize after a wake up from off-mode, and also there is no way of checking whether it is ready from kernel side or not. It just crashes if you use it too quickly Additional fix to ensure scratchpad save is done after secure RAM by Roger Quadros. Signed-off-by: NTero Kristo <tero.kristo@nokia.com> Signed-off-by: NRoger Quadros <ext-roger.quadros@nokia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Tero Kristo 提交于
For HS/EMU devices, some additional resources need to be saved/restored for off-mode support. Namely, saving the secure RAM and a pointer to it in the scratchpad. Signed-off-by: NTero Kristo <tero.kristo@nokia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Tero Kristo 提交于
For HS/EMU devices, these additional features are also used: - DMA interrupt disable routine added - Added DMA controller reset to DMA context restore Signed-off-by: NTero Kristo <tero.kristo@nokia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Rajendra Nayak 提交于
Add context save and restore for CORE powerdomain resources in order to support off-mode. Signed-off-by: NRajendra Nayak <rnayak@ti.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Rajendra Nayak 提交于
Adds a 'save_state' option when calling into SRAM idle function and adds some minor cleanups of SRAM asm code. Signed-off-by: NRajendra Nayak <rnayak@ti.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Rajendra Nayak 提交于
During the MMU restoration on the restore path from MPU OFF, the page table entry for the page consisting of the code being executed is modified to make MMU return VA=PA. The MMU is then enabled and the original entry is being stored in scratchpad. This patch reads the original values stored in scratchpad, and restores them back. Signed-off-by: NRajendra Nayak <rnayak@ti.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Rajendra Nayak 提交于
Expand the powerdomains handled in the idle path to include PER, NEON and CORE. This includes properly clearing the previous powerstates, linking NEON state to MPU state and calling the UART prepare functions for only the appropraite powerdomain transitions (CORE for UART1,2, PER for UART3.) Signed-off-by: NRajendra Nayak <rnayak@ti.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Rajendra Nayak 提交于
Generalize the copy of SRAM functions into omap_push_sram_idle() so it can be used on init but also after off-mode transitions. Signed-off-by: NRajendra Nayak <rnayak@ti.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Rajendra Nayak 提交于
Add context save and restore for the System Control Module to suport off-mode. ETK and debobs definitions added by Peter De Schrijver. Signed-off-by: NRajendra Nayak <rnayak@ti.com> Signed-off-by: NPeter 'p2' De Schrijver <peter.de-schrijver@nokia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Rajendra Nayak 提交于
This patch populates the scratchpad contents as expected by the bootROM code. Signed-off-by: NRajendra Nayak <rnayak@ti.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Rajendra Nayak 提交于
Add context save and restore for PRCM module to support off-mode. Additional registers (CM_CLKSEL4, CM_CLKEN, CM_CLKEN2) added by Tero Kristo. Missing CM_CLKEN_PLL_IVA2 register added by Kalle Jokiniemi. Signed-off-by: NRajendra Nayak <rnayak@ti.com> Signed-off-by: NTero Kristo <tero.kristo@nokia.com> Signed-off-by: NKalle Jokiniemi <kalle.jokiniemi@digia.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Rajendra Nayak 提交于
Add context save and restore for the INTC module to support off-mode. Signed-off-by: NRajendra Nayak <rnayak@ti.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Rajendra Nayak 提交于
Add context save and restore to enable off-mode. Signed-off-by: NRajendra Nayak <rnayak@ti.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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由 Rajendra Nayak 提交于
This patch adds the context save and restore functions for GPMC to enable off-mode. Signed-off-by: NRajendra Nayak <rnayak@ti.com> Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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- 11 11月, 2009 1 次提交
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由 Tony Lindgren 提交于
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- 04 11月, 2009 5 次提交
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由 Linus Torvalds 提交于
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git://github.com/at91linux/linux-2.6-at91由 Linus Torvalds 提交于
* 'for-linus' of git://github.com/at91linux/linux-2.6-at91: at91: at91sam9g45 family: identify several chip versions avr32: add two new at91 to cpu.h definition
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由 Nicolas Ferre 提交于
cpu_is_xxx() macros are identifying generic at91sam9g45 chip. This patch adds the capacity to differentiate Engineering Samples and final lots through the inclusion of at91_cpu_fully_identify() and the related chip IDs with chip version field preserved. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: NHans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
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由 Nicolas Ferre 提交于
Somme common drivers will need those at91 cpu_is_xxx() definitions. As at91sam9g10 and at91sam9g45 are on the way to linus' tree, here is the patch that adds those chips to cpu.h in AVR32 architecture. Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NHaavard Skinnemoen <haavard.skinnemoen@atmel.com>
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git://ftp.linux-mips.org/pub/scm/upstream-linus由 Linus Torvalds 提交于
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (38 commits) MIPS: O32: Fix ppoll MIPS: Oprofile: Rename cpu_type from godson2 to loongson2 MIPS: Alchemy: Fix hang with high-frequency edge interrupts MIPS: TXx9: Fix spi-baseclk value MIPS: bcm63xx: Set the correct BCM3302 CPU name MIPS: Loongson 2: Set cpu_has_dc_aliases and cpu_icache_snoops_remote_store MIPS: Avoid potential hazard on Context register MIPS: Octeon: Use lockless interrupt controller operations when possible. MIPS: Octeon: Use write_{un,}lock_irq{restore,save} to set irq affinity MIPS: Set S-cache linesize to 64-bytes for MTI's S-cache MIPS: SMTC: Avoid queing multiple reschedule IPIs MIPS: GCMP: Avoid accessing registers when they are not present MIPS: GIC: Random fixes and enhancements. MIPS: CMP: Fix memory barriers for correct operation of amon_cpu_start MIPS: Fix abs.[sd] and neg.[sd] emulation for NaN operands MIPS: SPRAM: Clean up support code a little MIPS: 1004K: Enable SPRAM support. MIPS: Malta: Enable PCI 2.1 compatibility in PIIX4 MIPS: Kconfig: Fix duplicate default value for MIPS_L1_CACHE_SHIFT. MIPS: MTI: Fix accesses to device registers on MIPS boards ...
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- 03 11月, 2009 5 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6由 Linus Torvalds 提交于
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PM: Remove some debug messages producing too much noise PM: Fix warning on suspend errors PM / Hibernate: Add newline to load_image() fail path PM / Hibernate: Fix error handling in save_image() PM / Hibernate: Fix blkdev refleaks PM / yenta: Split resume into early and late parts (rev. 4)
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由 Ian Campbell 提交于
nr_processes() returns the sum of the per cpu counter process_counts for all online CPUs. This counter is incremented for the current CPU on fork() and decremented for the current CPU on exit(). Since a process does not necessarily fork and exit on the same CPU the process_count for an individual CPU can be either positive or negative and effectively has no meaning in isolation. Therefore calculating the sum of process_counts over only the online CPUs omits the processes which were started or stopped on any CPU which has since been unplugged. Only the sum of process_counts across all possible CPUs has meaning. The only caller of nr_processes() is proc_root_getattr() which calculates the number of links to /proc as stat->nlink = proc_root.nlink + nr_processes(); You don't have to be all that unlucky for the nr_processes() to return a negative value leading to a negative number of links (or rather, an apparently enormous number of links). If this happens then you can get failures where things like "ls /proc" start to fail because they got an -EOVERFLOW from some stat() call. Example with some debugging inserted to show what goes on: # ps haux|wc -l nr_processes: CPU0: 90 nr_processes: CPU1: 1030 nr_processes: CPU2: -900 nr_processes: CPU3: -136 nr_processes: TOTAL: 84 proc_root_getattr. nlink 12 + nr_processes() 84 = 96 84 # echo 0 >/sys/devices/system/cpu/cpu1/online # ps haux|wc -l nr_processes: CPU0: 85 nr_processes: CPU2: -901 nr_processes: CPU3: -137 nr_processes: TOTAL: -953 proc_root_getattr. nlink 12 + nr_processes() -953 = -941 75 # stat /proc/ nr_processes: CPU0: 84 nr_processes: CPU2: -901 nr_processes: CPU3: -137 nr_processes: TOTAL: -954 proc_root_getattr. nlink 12 + nr_processes() -954 = -942 File: `/proc/' Size: 0 Blocks: 0 IO Block: 1024 directory Device: 3h/3d Inode: 1 Links: 4294966354 Access: (0555/dr-xr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2009-11-03 09:06:55.000000000 +0000 Modify: 2009-11-03 09:06:55.000000000 +0000 Change: 2009-11-03 09:06:55.000000000 +0000 I'm not 100% convinced that the per_cpu regions remain valid for offline CPUs, although my testing suggests that they do. If not then I think the correct solution would be to aggregate the process_count for a given CPU into a global base value in cpu_down(). This bug appears to pre-date the transition to git and it looks like it may even have been present in linux-2.6.0-test7-bk3 since it looks like the code Rusty patched in http://lwn.net/Articles/64773/ was already wrong. Signed-off-by: NIan Campbell <ian.campbell@citrix.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: gpio-keys - use IRQF_SHARED Input: winbond-cir - select LEDS_TRIGGERS Input: i8042 - try to get stable CTR value when initializing Input: atkbd - add a quirk for OQO 01+ multimedia keys
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git://git.fluff.org/bjdooks/linux由 Linus Torvalds 提交于
* 'fixes-s3c-2632-rc5' of git://git.fluff.org/bjdooks/linux: ARM: S3C2410: Fix sparse warnings in arch/arm/mach-s3c2410/gpio.c ARM: S3C2440: mini2440: Fix spare warnings ARM: S3C24XX: Fix warnings in arch/arm/plat-s3c24xx/gpio.c ARM: S3C2440: mini2440: Fix missing CONFIG_S3C_DEV_USB_HOST ARM: S3C24XX: arch/arm/plat-s3c24xx: Move dereference after NULL test ARM: S3C: Fix adc function exports ARM: S3C2410: Fix link if CONFIG_S3C2410_IOTIMING is not set ARM: S3C24XX: Introduce S3C2442B CPU ARM: S3C24XX: Define a macro to avoid compilation error ARM: S3C: Add info for supporting circular DMA buffers ARM: S3C64XX: Set rate of crystal mux ARM: S3C64XX: Fix S3C64XX_CLKDIV0_ARM_MASK value
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git://git.fluff.org/bjdooks/linux由 Linus Torvalds 提交于
* 'i2c-fixes' of git://git.fluff.org/bjdooks/linux: i2c-mpc: Do not generate STOP after read. i2c: imx: disable clock when it's possible to save power. i2c: imx: only imx1 needs disable delay i2c: imx: check busy bit when START/STOP
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