- Dec 22, 2010
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Raghuveer Murthy authored
commit bf56f0a6 (2.6.37-rc1), from Nishanth Menon attempted to fix card detection for PandaBoard, unfortunately, the fix missed to initialize .gpio_cd member of omap2_hsmmc_info. This results in a default value of '0', which is a valid GPIO line. On PandaBoard, the side effect of this is that GPIO line 0 controls the powering TFP410 DVI chip, and without the fix DVI chip is inadvertently powered. Tested-by:
David Anders <x0132446@ti.com> Acked-by:
Nishanth Menon <nm@ti.com> Signed-off-by:
Kishore Kadiyala <kishore.kadiyala@ti.com> Signed-off-by:
Raghuveer Murthy <raghuveer.murthy@ti.com> Signed-off-by:
Tony Lindgren <tony@atomide.com>
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Thomas Weber authored
Add support for DEBUG_LL for Devkit8000. Devkit8000 uses uart 3 for debug output. Signed-off-by:
Thomas Weber <weber@corscience.de> Signed-off-by:
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Daniel Morsing authored
The display reset lines are connected to a TPS65930 which may sleep when changing GPIO values. Use the appropriate function to silence a nasty warning from gpiolib. Signed-off-by:
Daniel Morsing <daniel.morsing@gmail.com> Acked-by:
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Tony Lindgren authored
Merge branch 'pm-opp' of ssh://master.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into omap-for-linus
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Tony Lindgren authored
Merge branch 'pm-next' of ssh://master.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into omap-for-linus
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Tony Lindgren authored
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Jean Pihet authored
Cosmetic fixes to the code: - white spaces and tabs, - alignement, - comments rephrase and typos, - multi-line comments Tested on N900 and Beagleboard with full RET and OFF modes, using cpuidle and suspend. Signed-off-by:
Jean Pihet <j-pihet@ti.com> Acked-by:
Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by:
Kevin Hilman <khilman@deeprootsystems.com>
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Jean Pihet authored
Errata covered: - 1.157 & 1.185 - i443 - i581 Tested on N900 and Beagleboard with full RET and OFF modes, using cpuidle and suspend. Signed-off-by:
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Jean Pihet authored
- Reworked and simplified the execution paths for better readability and to avoid duplication of code, - Added comments on the entry and exit points and the interaction with the ROM code for OFF mode restore, - Reworked the existing comments for better readability. Tested on N900 and Beagleboard with full RET and OFF modes, using cpuidle and suspend. Signed-off-by:
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Jean Pihet authored
Organize the code in the following sections: - register access macros, - API functions, - internal functions. Tested on N900 and Beagleboard with full RET and OFF modes, using cpuidle and suspend. Signed-off-by:
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Jean Pihet authored
Using macros from existing include files for registers addresses. Tested on N900 and Beagleboard with full RET and OFF modes, using cpuidle and suspend. Based on original patch from Vishwa. Signed-off-by:
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Jean Pihet authored
The SRAM PA addresses are locally defined and used at different places, i.e. SRAM management code and idle sleep code. The macros are now defined at a centralized place, for easier maintenance. Tested on N900 and Beagleboard with full RET and OFF modes, using cpuidle and suspend. Signed-off-by:
Nishanth <Menon<nm@ti.com> Signed-off-by:
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Jean Pihet authored
Remove unused code: - macros, - variables, - unused semaphore locking API. This API shall be added back when needed, - infinite loops for debug. Tested on N900 and Beagleboard with full RET and OFF modes, using cpuidle and suspend. Signed-off-by:
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Eduardo Valentin authored
Limitation i583: Self_Refresh Exit issue after OFF mode Issue: When device is waking up from OFF mode, then SDRC state machine sends inappropriate sequence violating JEDEC standards. Impact: OMAP3630 < ES1.2 is impacted as follows depending on the platform: CS0: for 38.4MHz as internal sysclk, DDR content seen to be stable, while for all other sysclk frequencies, varied levels of instability seen based on varied parameters. CS1: impacted This patch takes option #3 as recommended by the Silicon erratum: Avoid core power domain transitioning to OFF mode. Power consumption impact is expected in this case. To do this, we route core OFF requests to RET request on the impacted revisions of silicon. Acked-by:
Eduardo Valentin <eduardo.valentin@nokia.com> Signed-off-by:
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Nishanth Menon authored
Currently omap3_cpuidle_update_states makes whole sale decision on which C states to update based on enable_off_mode variable Instead, achieve the same functionality by independently providing mpu and core deepest states the system is allowed to achieve and update the idle states accordingly. Acked-by:
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Peter 'p2' De Schrijver authored
While coming out of MPU OSWR/OFF states, L2 controller is reseted. The reset behavior is implementation specific as per ARMv7 TRM and hence $L2 needs to be invalidated before it's use. Since the AUXCTRL register is also reconfigured, disable L2 cache before invalidating it and re-enables it afterwards. This is as per Cortex-A8 ARM documentation. Currently this is identified as being needed on OMAP3630 as the disable/enable is done from "public side" while, on OMAP3430, this is done in the "secure side". Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: Tony Lindgren <tony@atomide.com> Acked-by:
Peter 'p2' De Schrijver <peter.de-schrijver@nokia.com> Signed-off-by:
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Nishanth Menon authored
Erratum id: i608 RTA (Retention Till Access) feature is not supported and leads to device stability issues when enabled. This impacts modules with embedded memories on OMAP3630 Workaround is to disable RTA on boot and coming out of core off. For disabling RTA coming out of off mode, we do this by overriding the restore pointer for 3630 as the first point of entry before caches are touched and is common for GP and HS devices. To disable earlier than this could be possible by modifying the PPA for HS devices, but not for GP devices. Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: Tony Lindgren <tony@atomide.com> Acked-by:
Ambresh K <ambresh@ti.com> Signed-off-by:
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Nishanth Menon authored
Introduce errata handling for OMAP3. This patch introduces errata variable and stub for initialization which will be filled up by follow-on patches. Signed-off-by:
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Peter 'p2' De Schrijver authored
Erratum i581 impacts OMAP3 platforms. PRCM DPLL control FSM removes SDRC_IDLEREQ before DPLL3 locks causing the DPLL not to be locked at times. IMPORTANT: *) This is not a complete workaround implementation as recommended by the silicon erratum. This is a support logic for detecting lockups and attempting to recover where possible and is known to provide stability in multiple platforms. *) This code is mostly important for inactive and retention. The ROM code waits for the maximum DLL lock time when resuming from off mode. So for off mode this code isn't really needed. *) counters are introduced here for eventual export to userspace once the cleanups are completed. This should eventually get refactored as part of cleanups to sleep34xx.S Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by:
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Richard Woodruff authored
Analysis in TI kernel with ETM showed that using cache mapped flush in kernel instead of SO mapped flush cost drops by 65% (3.39mS down to 1.17mS) for clean_l2 which is used during sleep sequences. Overall: - speed up - unfortunately there isn't a good alternative flush method today - code reduction and less maintenance and potential bug in unmaintained code This also fixes the bug with the clean_l2 function usage. Reported-by:
Richard Woodruff <r-woodruff2@ti.com> Signed-off-by:
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Kevin Hilman authored
With new OPP layer, OPP users will access OPP API directly instead of using OMAP PM layer, so remove all notions of OPPs from the OMAP PM layer. Acked-by:
Paul Walmsley <paul@pwsan.com> Signed-off-by:
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Nishanth Menon authored
This patch adds OPP tables for OMAP4. New file has been added to keep the OMAP4 opp tables and the registration of these tables with the generic opp framework by OMAP SoC OPP interface. Based on: http://dev.omapzoom.org/?p=santosh/kernel-omap4-base.git;a=blob;f=arch/arm/mach-omap2/opp44xx_data.c;h=252e3d0cb6050a64f390b9311c1c4977d74f762a;hb=refs/heads/omap4_next Signed-off-by:
Thara Gopinath <thara@ti.com> Signed-off-by:
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Nishanth Menon authored
Add OPP data for OMAP34xx and OMAP36xx and initialization functions to populate OPP tables based on current SoC. introduce an OMAP generic opp initialization routine which OMAP3 and OMAP4+ SoCs can use to register their OPP definitions. Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by:
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Thara Gopinath authored
omap2_common_pm_init is the API where generic system devices like mpu, l3 etc get initialized. This has to happen really early on during the boot and not at a later time. This is especially important with the new opp changes as these devices need to be built before the opp tables init happen. Today both are device initcalls and it works just because of the order of compilation. Making this postcore_initcall is ideal because the omap device layer init happens as a core_initcall and typically rest of the driver/device inits are arch_initcall or something lower. Signed-off-by:
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Jean Pihet authored
Some bad interaction between the idle and the suspend paths has been identified: the idle code is called during the suspend enter and exit sequences. This could cause corruption or lock-up of resources. The solution is to move the calls to disable_hlt at the very beginning of the suspend sequence (ex. in omap3_pm_begin instead of omap3_pm_prepare), and the call to enable_hlt at the very end of the suspend sequence (ex. in omap3_pm_end instead of omap3_pm_finish). Tested with RET and OFF on Beagle and OMAP3EVM. Signed-off-by:
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Linus Torvalds authored
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- Dec 21, 2010
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6Linus Torvalds authored
* 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: n_gsm: gsm_data_alloc buffer allocation could fail and it is not being checked n_gsm: Fix message length handling when building header
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds authored
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: Revert "USB: gadget: Allow function access to device ID data during bind()" USB: misc: uss720.c: add another vendor/product ID USB: usb-storage: unusual_devs entry for the Samsung YP-CP3 USB: gadget: Remove suspended sysfs file before freeing cdev USB: core: Add input prompt and help text for USB_OTG config USB: ftdi_sio: Add D.O.Tec PID xhci: Fix issue with port array setup and buggy hosts.
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-clientLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: ceph: handle partial result from get_user_pages ceph: mark user pages dirty on direct-io reads ceph: fix null pointer dereference in ceph_init_dentry for nfs reexport ceph: fix direct-io on non-page-aligned buffers ceph: fix msgr_init error path
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Linus Torvalds authored
.. caused by a missing semi-colon, introduced in commit 0fc13c89 ("cciss: fix cciss_revalidate panic"). Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Reported-by:
Thiago Farina <tfransosi@gmail.com> Cc: Jens Axboe <jaxboe@fusionio.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Tony Lindgren authored
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Jarkko Nikula authored
If the TPA6130 is compiled as module the id and power_gpio values are arbitrary at module probing time since the rx51_tpa6130a2_data was marked as __initdata. Fix this by using __initdata_or_module. Then __initdata is defined only if the kernel is built without CONFIG_MODULES and omitted otherwise. Signed-off-by:
Jarkko Nikula <jhnikula@gmail.com> Signed-off-by:
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Grazvydas Ignotas authored
After commit ed919b01 "mmc: sdio: fix runtime PM anomalies by introducing MMC_CAP_POWER_OFF_CARD" it is required to specify MMC_CAP_POWER_OFF_CARD to have runtime PM support. As the wl1251 driver expects card to be powered down when it's not used, wifi will no longer work after interface is brought down at least once without functioning runtime PM. Fix this by declaring MMC_CAP_POWER_OFF_CARD for MMC3. Signed-off-by:
Grazvydas Ignotas <notasas@gmail.com> Signed-off-by:
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Raghuveer Murthy authored
This patch adds omap_reserve functionality to board-omap4panda.c. Helps in the reserving boot time memory in SDRAM, used here for framebuffer allocation. This patch is in similar lines to commit id 71ee7dad , from Russell king Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by:
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Hemanth V authored
Register TWL6030 PWM, which is used as charging LED Signed-off-by:
Hemanth V <hemanthv@ti.com> Signed-off-by:
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Hemanth V authored
Register BH1780GLI Ambient light sensor, which is an I2C device for 4430SDP board. Signed-off-by:
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Laurent Pinchart authored
Make sure the LED is turned off at boot time, and configure the GPIO LED device as active low. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by:
Enric Balletbo i Serra <eballetbo@gmail.com> Signed-off-by:
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Laurent Pinchart authored
gpio_direction_output() has a value argument, there's no need to call gpio_set_value() explicitly right after. Signed-off-by:
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Tony Lindgren authored
No need to call this early from init_irq. Also recent changes initialize GPIO now later, so calling gpio_request from init_irq will make it fail. While at it, also remove the unnecessary EXPORT_SYMBOL. Signed-off-by: -
Marc Zyngier authored
Commit 72f381ba (omap3: Remove VMMC2 regulator on IGEP v2) removed an unused regulator entry, but left the second MMC channel (used by the Libertas WLAN module) without link to power regulator. This causes the SDIO module to fail being detected. This patch adds the two regulators that actually feed the WLAN module (1v8 from the TWL4030 VIO LDO, and a fixed 3v3). With that patch, the second channel is properly detected. Details of the power supply implementation were kindly provided by Enric Balletbo i Serra. Also change vmmc1 to use symbolic names instead of direct device reference. Tested on an IGEPv2 Rev-B. Signed-off-by:
Marc Zyngier <maz@misterjones.org> Acked-by:
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