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2012-05-14Merge branch 'power' of git://github.com/hzhuang1/linux into next/pmArnd Bergmann
* 'power' of git://github.com/hzhuang1/linux: ARM: mmp: add pm support for pxa910 ARM: mmp: ttc_dkb: add PMIC support ARM: cache: tauros2: add disable and resume callback ARM: mm: proc-mohawk: add suspend resume for mohawk ARM: mmp: add PM support for mmp2 ARM: mmp: move XX_REG definition to addr-map.h Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-05-14Merge branch 'mmp/dt' into next/pmArnd Bergmann
The mmp power management changes are based on this branch, so pull it in as a dependency. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-05-10Merge tag 'omap-devel-hwmod-data-for-v3.5' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm Data changes related to omap hwmod By Paul Walmsley (4) and others via Paul Walmsley (1) and Tony Lindgren (1) * tag 'omap-devel-hwmod-data-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: WDTIMER integration: fix !PM boot crash, disarm timer after hwmod reset ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod database ARM: OMAP4: hwmod_data: Name the common irq for McBSP ports ARM: OMAP4: hwmod data: I2C: add flag for context restore ARM: OMAP3: hwmod_data: Rename the common irq for McBSP ports ARM: OMAP2xxx: hwmod data: add HDQ/1-wire hwmod ARM: OMAP3: hwmod data: add HDQ/1-wire hwmod ARM: OMAP2+: hwmod data: add HDQ/1-wire hwmod shared data ARM: OMAP2+: HDQ1W: add custom reset function ARM: OMAP2420: hwmod data: Add MMC hwmod data for 2420
2012-05-10Merge tag 'omap-devel-prcm-for-v3.5' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm Updates for PRCM (Power, Reset, Clock Management). Note that this depends on omap-devel-hwmod-for-v3.5. By Kevin Hilman (3) and others via Paul Walmsley (2) and Tony Lindgren (1) * tag 'omap-devel-prcm-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: arm: omap3: clockdomain data: Remove superfluous commas from gfx_sgx_3xxx_wkdeps[] ARM: OMAP2+: powerdomain: Get rid off duplicate pwrdm_clkdm_state_switch() API ARM: OMAP3: clock data: add clockdomain for HDQ functional clock ARM: OMAP3+: dpll: Configure autoidle mode only if it's supported ARM: OMAP2+: dmtimer: cleanup iclk usage ARM: OMAP4+: Add prm and cm base init function. ARM: OMAP2/3: Add idle_st bits for ST_32KSYNC timer to prcm-common header ARM: OMAP3: Fix CM register bit masks ARM: OMAP: clock: convert AM3517/3505 detection/flags to AM35xx ARM: OMAP3: clock data: treat all AM35x devices the same ARM: OMAP3: clock data: replace 3503/3517 flag with AM35x flag for UART4
2012-05-09Merge tag 'omap-devel-c-for-3.5' of ↵Tony Lindgren
git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into devel-hwmod-data Some OMAP IP block data additions for 3.5, along with a fix for a longstanding watchdog timer integration problem.
2012-05-09Merge tag 'omap-devel-hwmod-for-v3.5' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm Add most of remaining hwmods for omap4 By Paul Walmsley (37) and others via Tony Lindgren (2) and Paul Walmsley (1) * tag 'omap-devel-hwmod-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (44 commits) ARM: OMAP4: hwmod data: add DEBUGSS skeleton ARM: OMAP4: hwmod data: add PRCM and related IP blocks ARM: OMAP4: hwmod data: add System Control Module ARM: OMAP4: hwmod data: add the OCP-WP IP block ARM: OMAP4: hwmod data: add OCM RAM IP block ARM: OMAP4: hwmod data: add remaining USB-related IP blocks ARM: OMAP4: hwmod data: add some interconnect-related IP blocks ARM: OMAP4: hwmod data: add McASP ARM: OMAP4: hwmod data: add the Slimbus IP blocks ARM: OMAP4: hwmod data: add GPU ARM: OMAP4: hwmod data: add EMIF1 and 2 ARM: OMAP4: hwmod data: add GPMC ARM: OMAP4: hwmod data: add HDQ/1-wire ARM: OMAP4: hwmod data: introduce fdif(face detect module) hwmod ARM: OMAP2+: clockdomains: make {prm,cm}_clkdm common ARM: OMAP2xxx: hwmod data: start to fix the IVA1, IVA2 and DSP ARM: OMAP3: hwmod data: add IVA hard reset lines, main clock, clockdomain ARM: OMAP3: hwmod data: fix IVA interface clock ARM: OMAP2xxx: hwmod data: share common interface data ARM: OMAP2xxx: hwmod data: share common hwmods between OMAP2420 and OMAP2430 ...
2012-05-09Merge tag 'omap-pm-regulator-for-v3.5' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm Add support for vdd1 and vdd2 regulators and make voltage code to use them By Tero Kristo (4) and Kevin Hilman (1) via Kevin Hilman (3) and Tony Lindgren (1) * tag 'omap-pm-regulator-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: voltage: ensure voltage used is exact voltage from OPP table arm: omap4: add common twl configurations for vdd1, vdd2 and vdd3 arm: omap3: twl: add external controllers for core voltage regulators arm: omap3: add common twl configurations for vdd1 and vdd2 arm: omap3: voltage: fix channel configuration
2012-05-08ARM: OMAP2+: WDTIMER integration: fix !PM boot crash, disarm timer after ↵Kevin Hilman
hwmod reset Without runtime PM enabled, hwmod needs to leave all IP blocks in an enabled state by default so any driver access to the HW will succeed. This is accomplished by seting the postsetup_state to enabled for all hwmods during init when runtime PM is disabled. Currently, we have a special case for WDT in that its postsetup_state is always set to disabled. This is done so that the WDT is disabled and the timer is disarmed at boot in case there is no WDT driver. This also means that when runtime PM is disabled, if a WDT driver *is* built in the kernel, the kernel will crash on the first access to the WDT hardware. We can't simply leave the WDT module enabled, because the timer is armed by default after reset. That means that if there is no WDT driver initialzed or loaded before the timer expires, the kernel will reboot. To fix this, a custom reset method is added to the watchdog class of omap_hwmod. This method will *always* disarm the timer after hwmod reset. The WDT timer then will only be rearmed when/if the driver is loaded for the WDT. With the timer disarmed by default, we no longer need a special-case for the postsetup_state of WDT during init, so it is removed. Any platforms wishing to ensure the watchdog remains armed across the entire boot boot can simply disable the reset-on-init feature of the watchdog hwmod using omap_hwmod_no_setup_reset(). Tested on 3530/Overo, 4430/Panda. NOTE: on 4430, the hwmod OCP reset does not seem to rearm the timer as documented in the TRM (and what happens on OMAP3.) I noticed this because testing the HWMOD_INIT_NO_RESET feature with no driver loaded, I expected a reboot part way through the boot, but did not see a reboot. Adding some debug to read the counter, I verified that right after OCP softreset, the counter is not firing. After writing the magic start sequence, the timer starts counting. This means that the timer disarm sequence added here does not seem to be needed for 4430, but is technically the correct way to ensure the timer is disarmed, so it is left in for OMAP4. Special thanks to Paul Walmsley for helping brainstorm ideas to fix this problem. Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Kevin Hilman <khilman@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> [paul@pwsan.com: updated the omap2_wd_timer_reset() function in the wake of commit 3c55c1baffa5f719eb2ae9729088bc867f972f53 ("ARM: OMAP2+: hwmod: Revert "ARM: OMAP2+: hwmod: Make omap_hwmod_softreset wait for reset status""); added kerneldoc; rolled in warning fix from Kevin] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-08ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod databaseVaibhav Hiremath
Add 32k-sync timer hwmod-data and add ocp_if details to omap2 & 3 hwmod table. Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Kevin Hilman <khilman@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-08ARM: OMAP4: hwmod_data: Name the common irq for McBSP portsPeter Ujfalusi
Use 'common' as name for the common irq number in hwmod data for the McBSP ports. The same name already in use for OMAP2430, and OMAP3. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-08ARM: OMAP4: hwmod data: I2C: add flag for context restoreShubhrajyoti D
Restore of context is not done for OMAP4. This patch adds the OMAP_I2C_FLAG_RESET_REGS_POSTIDLE in the OMAP4 hwmod data which activates the restore for OMAP4. Currently the OMAP4 does not hit device off still the driver may have support for it. Cc: Benoit Cousson <b-cousson@ti.com> Cc: Paul Wamsley <paul@pwsan.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-08ARM: OMAP3: hwmod_data: Rename the common irq for McBSP portsPeter Ujfalusi
Use 'common' as name for the common irq number in hwmod data for the McBSP ports. The same name already in use for OMAP2430, and the OMAP4 hwmod data will be using the same name. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-08ARM: OMAP2xxx: hwmod data: add HDQ/1-wire hwmodPaul Walmsley
Add the HDQ1W hwmod for all OMAP2xxx devices. Assume that OMAP2xxx chips have the same HDQ idle handling bug as OMAP3: http://www.spinics.net/lists/linux-omap/msg63576.html and set the OCPIF_SWSUP_IDLE flag accordingly on the HDQ's OCP interface. Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-08ARM: OMAP3: hwmod data: add HDQ/1-wire hwmodPaul Walmsley
Add the HDQ1W hwmod for OMAP34xx, OMAP36xx, and AM3505/3517 devices. According to the respective TRMs, it doesn't appear to be available for the 816x/814x or the AM335x. The OCPIF_SWSUP_IDLE flag is added to work around an apparent hardware bug: the hardware is not taking the CM_FCLKEN*_CORE.EN_HDQ bit into account when considering whether to go idle: http://www.spinics.net/lists/linux-omap/msg63576.html This causes HDQ transfers to fail or become corrupt. Thanks to NeilBrown for his help diagnosing and testing fixes for this problem. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: NeilBrown <neilb@suse.de> Tested-by: NeilBrown <neilb@suse.de>
2012-05-08ARM: OMAP2+: hwmod data: add HDQ/1-wire hwmod shared dataPaul Walmsley
Much of the HDQ1W integration data is common between multiple generations of OMAP SoCs, so rather than make several copies, we add it once into files which are compiled for multiple SoCs. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: NeilBrown <neilb@suse.de> Tested-by: NeilBrown <neilb@suse.de>
2012-05-08ARM: OMAP2+: HDQ1W: add custom reset functionPaul Walmsley
Implement a custom reset function for the HDQ1W IP block. This is because the HDQ1W IP block, like I2C, has an internal clock gating bit that needs to be toggled after setting the SOFTRESET bit to allow the reset to propagate. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: NeilBrown <neilb@suse.de> Cc: Avinash.H.M <avinashhm@ti.com> Tested-by: NeilBrown <neilb@suse.de>
2012-05-08ARM: OMAP2420: hwmod data: Add MMC hwmod data for 2420Tony Lindgren
Add MMC for 2420 so we can pass the DMA request lines the same way as we already do on omap2430 and later. Cc: Benoit Cousson <b-cousson@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com> [paul@pwsan.com: updated to apply on top of the 3.5 hwmod cleanup; changed mmc hwmod name/class to "msdi" as documented in the 2420 TRM Rev X; added sysconfig register information; added 16 bit register width flag; added MSDI custom reset code] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-08Merge tag 'omap-devel-b-for-3.5' of ↵Tony Lindgren
git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into devel-prcm Some OMAP PRCM updates for 3.5. Includes some clock, clockdomain, powerdomain, PRM, and CM changes.
2012-05-07Merge branches 'clock_am35xx_cleanup_3.5', 'prm_cm_devel_a_3.5', ↵Paul Walmsley
'clock_devel_a_3.5' and 'pwrdm_clkdm_cleanup_3.5' into prcm_devel_a_3.5
2012-05-07arm: omap3: clockdomain data: Remove superfluous commas from ↵Mark A. Greer
gfx_sgx_3xxx_wkdeps[] Clean up clockdomains3xxx_data.c a bit by removing the superfluous commas in gfx_sgx_3xxx_wkdeps[]. Signed-off-by: Mark A. Greer <mgreer@animalcreek.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-07ARM: OMAP2+: powerdomain: Get rid off duplicate pwrdm_clkdm_state_switch() APISantosh Shilimkar
With patch 'ARM: OMAP2+: powerdomain: Wait for powerdomain transition in pwrdm_state_switch()', the pwrdm_clkdm_state_switch() API becomes duplicate of pwrdm_state_switch(). Get rid off duplicate pwrdm_clkdm_state_switch() and update the users of it with pwrdm_state_switch() Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Rajendra Nayak <rnayak@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-07ARM: OMAP3: clock data: add clockdomain for HDQ functional clockPaul Walmsley
Add the correct clockdomain for the HDQ functional clock. This is needed for the clock and hwmod PM code to work correctly. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: NeilBrown <neilb@suse.de>
2012-05-07ARM: OMAP3+: dpll: Configure autoidle mode only if it's supportedVaibhav Bedia
The current DPLL code enables and disables autoidle features without checking whether the autoidle register is available. Fix this by putting a check for the existence of the autoidle register in the DPLL data. With such a check in place, for DPLLs which do not support this feature, simply skipping the autoidle_reg entry in the DPLL data is sufficient. Signed-off-by: Vaibhav Bedia <vaibhav.bedia@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-07ARM: OMAP2+: dmtimer: cleanup iclk usageTarun Kanti DebBarma
We do not use iclk anywhere in the dmtimer driver and so removing it. Hence removing the timer iclk entries from OMAP4 clkdev table as well. Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-07ARM: OMAP4+: Add prm and cm base init function.R Sricharan
Instead of statically defining seperate arrays for every OMAP4+ archs, have a generic init function to populate the arrays. This avoids the need for creating new array for every arch added in the future that reuses the prm and cm registers read/write code. Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: R Sricharan <r.sricharan@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-07ARM: OMAP2/3: Add idle_st bits for ST_32KSYNC timer to prcm-common headerVaibhav Hiremath
Add missing idle_st bit for 32k-sync timer into the prcm-common header file, required for hwmod data. Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Kevin Hilman <khilman@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-07ARM: OMAP3: Fix CM register bit masksRajendra Nayak
The register bits for MPU_CLK_SRC and IVA2_CLK_SRC in CM_CLKSEL1_PLL register are 3 bits wide. Fix the MASK definition accordingly. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-07ARM: OMAP: clock: convert AM3517/3505 detection/flags to AM35xxKevin Hilman
To improve the clarity of the code, replace the CK_3517 flag used in the clock data with CK_AM35XX. The CK_3505 flag can also be removed, since it is now unused. Acked-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-07ARM: OMAP3: clock data: treat all AM35x devices the sameKevin Hilman
The init for 3505/3517 specific clocks depends on the ordering of cpu_is checks, is error prone and confusing (there are 2 separate checks for cpu_is_omap3505()). Remove the 3505-specific checking since CK_3505 flag is not used, and treat all AM35x clocks the same. This means that the SGX clock (the only AM35x clkdev not currently flagged for 3505) will now be registered on 3505, but that is harmless. That can be cleaned up when the clkdev nodes are removed in favor of them being registered by hwmod. Acked-by: Vaibhav Hiremath <hvaibhav@ti.com> Tested-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-07ARM: OMAP3: clock data: replace 3503/3517 flag with AM35x flag for UART4Kevin Hilman
The AM35x UART4 is common to all AM35x devices, so use CK_AM35XX instead of (CK_3505 | CK_3517), which is equivalent. Acked-by: Vaibhav Hiremath <hvaibhav@ti.com> Tested-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-05-07ARM: mmp: add pm support for pxa910Chao Xie
add suspend/resume functionality for pxa910 Signed-off-by: Chao Xie <chao.xie@marvell.com> Signed-off-by: Raul Xiong <xjian@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-05-07ARM: mmp: ttc_dkb: add PMIC supportChao Xie
Add 88pm860x into ttc_dkb, and it will impact the suspend/resume of pxa910 Signed-off-by: Chao Xie <chao.xie@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-05-07ARM: cache: tauros2: add disable and resume callbackChao Xie
For the SOC chips using tauros2 cache, will need disable and resume tauros2 cache for SOC suspend/resume. Signed-off-by: Chao Xie <chao.xie@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-05-07ARM: mm: proc-mohawk: add suspend resume for mohawkChao Xie
When enable ARCH_SUSPEND_POSSIBLE, it need defintion of cpu_mohawk_do_suspend and cpu_mohawk_do_resume Signed-off-by: Chao Xie <chao.xie@marvell.com> Signed-off-by: Haojian Zhuang <<haojian.zhuang@gmail.com>
2012-05-07ARM: mmp: add PM support for mmp2Chao Xie
MMP2 can enter system sleep level during suspend. It can be waken up by PMIC interrupt, RTC/ALARM. Signed-off-by: Chao Xie <chao.xie@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-05-07ARM: mmp: move XX_REG definition to addr-map.hChao Xie
Move APBC_REG, APMU_REG and CIU_REG definition to addr-map.h driver only need include addr-map.h to get access of the registers. Signed-off-by: Chao Xie <chao.xie@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-05-05Documentation: update docs for mmp dtHaojian Zhuang
Append interrupt controller and timer document for mmp. Updates documents for gpio and i2c. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-05-05ARM: dts: refresh dts file for arch mmpHaojian Zhuang
Append mmp2 and pxa910 dts files. Update PXA168 dts files for irq, timer, gpio components. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-05-05ARM: mmp: support pxa910 with device treeHaojian Zhuang
Suppot gpio/irq/timer in mmp-dt driver. Support PXA910 also in mmp-dt driver. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-05-05ARM: mmp: support mmp2 with device treeHaojian Zhuang
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-05-05gpio: pxa: parse gpio from DTS fileHaojian Zhuang
Parse GPIO numbers from DTS file. Allocate interrupt according to GPIO numbers. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-05-05ARM: mmp: support DT in timerHaojian Zhuang
Parse timer from DTS file. Avoid to use hardcoding marco for register. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-05-05ARM: mmp: support DT in irqHaojian Zhuang
Merge irq-pxa168 and irq-mmp2. And support device tree also. Since CONFIG_SPARSE_IRQ is enabled in arch-mmp, base irq starts from NR_IRQS_LEGACY. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-05-05ARM: mmp: append CONFIG_MACH_MMP2_DTHaojian Zhuang
Append CONFIG_MACH_MMP2_DT. CONFIG_MACH_MMP_DT is used to ARMv5 DT support. CONFIG_MACH_MMP2_DT is used to ARMv7 DT support. These two machine support can't be selected at the same time. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-05-05ARM: mmp: fix build issue on mmp with device treeHaojian Zhuang
Since irq_domain_add_simple() is removed, remove it in mmp-dt.c also. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-04-30Merge branch 'for_3.4/pm/smps-regulator' of ↵Tony Lindgren
git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into pm-regulator Conflicts: arch/arm/mach-omap2/twl-common.c
2012-04-29Linux 3.4-rc5v3.4-rc5Linus Torvalds
2012-04-29Merge tag 'pm-for-3.4-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael J. Wysocki: "Fix for an issue causing hibernation to hang on systems with highmem (that practically means i386) due to broken memory management (bug introduced in 3.2, so -stable material) and PM documentation update making the freezer documentation follow the code again after some recent updates." * tag 'pm-for-3.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM / Freezer / Docs: Update documentation about freezing of tasks PM / Hibernate: fix the number of pages used for hibernate/thaw buffering
2012-04-29autofs: make the autofsv5 packet file descriptor use a packetized pipeLinus Torvalds
The autofs packet size has had a very unfortunate size problem on x86: because the alignment of 'u64' differs in 32-bit and 64-bit modes, and because the packet data was not 8-byte aligned, the size of the autofsv5 packet structure differed between 32-bit and 64-bit modes despite looking otherwise identical (300 vs 304 bytes respectively). We first fixed that up by making the 64-bit compat mode know about this problem in commit a32744d4abae ("autofs: work around unhappy compat problem on x86-64"), and that made a 32-bit 'systemd' work happily on a 64-bit kernel because everything then worked the same way as on a 32-bit kernel. But it turned out that 'automount' had actually known and worked around this problem in user space, so fixing the kernel to do the proper 32-bit compatibility handling actually *broke* 32-bit automount on a 64-bit kernel, because it knew that the packet sizes were wrong and expected those incorrect sizes. As a result, we ended up reverting that compatibility mode fix, and thus breaking systemd again, in commit fcbf94b9dedd. With both automount and systemd doing a single read() system call, and verifying that they get *exactly* the size they expect but using different sizes, it seemed that fixing one of them inevitably seemed to break the other. At one point, a patch I seriously considered applying from Michael Tokarev did a "strcmp()" to see if it was automount that was doing the operation. Ugly, ugly. However, a prettier solution exists now thanks to the packetized pipe mode. By marking the communication pipe as being packetized (by simply setting the O_DIRECT flag), we can always just write the bigger packet size, and if user-space does a smaller read, it will just get that partial end result and the extra alignment padding will simply be thrown away. This makes both automount and systemd happy, since they now get the size they asked for, and the kernel side of autofs simply no longer needs to care - it could pad out the packet arbitrarily. Of course, if there is some *other* user of autofs (please, please, please tell me it ain't so - and we haven't heard of any) that tries to read the packets with multiple writes, that other user will now be broken - the whole point of the packetized mode is that one system call gets exactly one packet, and you cannot read a packet in pieces. Tested-by: Michael Tokarev <mjt@tls.msk.ru> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: David Miller <davem@davemloft.net> Cc: Ian Kent <raven@themaw.net> Cc: Thomas Meyer <thomas@m3y3r.de> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-29PM / Freezer / Docs: Update documentation about freezing of tasksMarcos Paulo de Souza
The file Documentation/power/freezing-of-tasks.txt was still referencing the TIF_FREEZE flag, that was removed by the commit d88e4cb67197d007fb778d62fe17360e970d5bfa(freezer: remove now unused TIF_FREEZE). This patch removes all the references of TIF_FREEZE that were left behind. Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com> Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>