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2009-09-15Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: (23 commits) at_hdmac: Rework suspend_late()/resume_early() PM: Reset transition_started at dpm_resume_noirq PM: Update kerneldoc comments in drivers/base/power/main.c PM: Add convenience macro to make switching to dev_pm_ops less error-prone hp-wmi: Switch driver to dev_pm_ops floppy: Switch driver to dev_pm_ops PM: Trivial fixes PM / Hibernate / Memory hotplug: Always use for_each_populated_zone() PM/Hibernate: Do not try to allocate too much memory too hard (rev. 2) PM/Hibernate: Do not release preallocated memory unnecessarily (rev. 2) PM/Hibernate: Rework shrinking of memory PM: Fix typo in label name s/Platofrm_finish/Platform_finish/ PM: Run-time PM platform device bus support PM: Introduce core framework for run-time PM of I/O devices (rev. 17) Driver Core: Make PM operations a const pointer PM: Remove platform device suspend_late()/resume_early() V2 USB: Rework musb suspend()/resume_early() I2C: Rework i2c-s3c2410 suspend_late()/resume() V2 I2C: Rework i2c-pxa suspend_late()/resume_early() DMA: Rework txx9dmac suspend_late()/resume_early() ... Fix trivial conflict in drivers/base/platform.c (due to same constification patch being merged in both sides, along with some other PM work in the PM branch)
2009-09-15Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (257 commits) [ARM] Update mach-types ARM: 5636/1: Move vendor enum to AMBA include ARM: Fix pfn_valid() for sparse memory [ARM] orion5x: Add LaCie NAS 2Big Network support [ARM] pxa/sharpsl_pm: zaurus c3000 aka spitz: fix resume ARM: 5686/1: at91: Correct AC97 reset line in at91sam9263ek board ARM: 5640/1: This patch modifies the support of AC97 on the at91sam9263 ek board ARM: 5689/1: Update default config of HP Jornada 700-series machines ARM: 5691/1: fix cache aliasing issues between kmap() and kmap_atomic() with highmem ARM: 5688/1: ks8695_serial: disable_irq() lockup ARM: 5687/1: fix an oops with highmem ARM: 5684/1: Add nuc960 platform to w90x900 ARM: 5683/1: Add nuc950 platform to w90x900 ARM: 5682/1: Add cpu.c and dev.c and modify some files of w90p910 platform ARM: 5626/1: add suspend/resume functions to amba-pl011 serial driver ARM: 5625/1: fix hard coded 4K resource size in amba bus detection MMC: MMCI: convert realview MMC to use gpiolib ARM: 5685/1: Make MMCI driver compile without gpiolib ARM: implement highpte ARM: Show FIQ in /proc/interrupts on CONFIG_FIQ ... Fix up trivial conflict in arch/arm/kernel/signal.c. It was due to the TIF_NOTIFY_RESUME addition in commit d0420c83f ("KEYS: Extend TIF_NOTIFY_RESUME to (almost) all architectures") and follow-ups.
2009-09-14Merge branch 'master' into for-linusRafael J. Wysocki
2009-09-12Merge branch 'master' into develRussell King
2009-09-10Merge branch 'topic/asoc' into for-linusTakashi Iwai
* topic/asoc: (226 commits) ASoC: au1x: PSC-AC97 bugfixes ASoC: Fix WM835x Out4 capture enumeration ASoC: Remove unuused hw_read_t ASoC: fix pxa2xx-ac97.c breakage ASoC: Fully specify DC servo bits to update in wm_hubs ASoC: Debugged improper setting of PLL fields in WM8580 driver ASoC: new board driver to connect bfin-5xx with ad1836 codec ASoC: OMAP: Add functionality to set CLKR and FSR sources in McBSP DAI ASoC: davinci: i2c device creation moved into board files ASoC: Don't reconfigure WM8350 FLL if not needed ASoC: Fix s3c-i2s-v2 build ASoC: Make platform data optional for TLV320AIC3x ASoC: Add S3C24xx dependencies for Simtec machines ASoC: SDP3430: Fix TWL GPIO6 pin mux request ASoC: S3C platform: Fix s3c2410_dma_started() called at improper time ARM: OMAP: McBSP: Merge two functions into omap_mcbsp_start/_stop ASoC: OMAP: Fix setup of XCCR and RCCR registers in McBSP DAI OMAP: McBSP: Use textual values in DMA operating mode sysfs files ARM: OMAP: DMA: Add support for DMA channel self linking on OMAP1510 ASoC: Select core DMA when building for S3C64xx ...
2009-08-25ARM: OMAP: McBSP: Merge two functions into omap_mcbsp_start/_stopJarkko Nikula
Functionality of functions omap_mcbsp_xmit_enable and omap_mcbsp_recv_enable can be merged into omap_mcbsp_start and omap_mcbsp_stop since API of those omap_mcbsp_start and omap_mcbsp_stop was changed recently allowing to start and stop individually the transmitter and receiver. This cleans up the code in arch/arm/plat-omap/mcbsp.c and in sound/soc/omap/omap-mcbsp.c which was the only user for those removed functions. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Acked-by: Eero Nurkkala <ext-eero.nurkkala@nokia.com> Cc: Peter Ujfalusi <peter.ujfalusi@nokia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-25OMAP: McBSP: Use textual values in DMA operating mode sysfs filesJarkko Nikula
Use more descriptive than numerical value when showing and storing the McBSP DMA operating mode. Show function is using similar syntax than e.g. the led triggers so that all possible values for store function are printed but with current value surrounded with square brackets. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Cc: Peter Ujfalusi <peter.ujfalusi@nokia.com> Acked-by: Eduardo Valentin <eduardo.valentin@nokia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-24ARM: OMAP: DMA: Add support for DMA channel self linking on OMAP1510Janusz Krzysztofik
Implement DMA channel self linking on OMAP1510 using AUTO_INIT and REPEAT flags of the DMA CCR register. Created against linux-2.6.31-rc5. Tested on Amstrad Delta. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-20OMAP: McBSP: Let element DMA mode hit retention alsoEero Nurkkala
The device no longer hits retention if element DMA mode is taken for at least the duration of the serial console timeout. Force element DMA mode to shut down through smartidle. Signed-off-by: Eero Nurkkala <ext-eero.nurkkala@nokia.com> Acked-by: Eduardo Valentin <eduardo.valentin@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-20OMAP: McBSP: Do not enable wakeups for no-idle modeEero Nurkkala
When no-idle mode is taken, wakeups need not to be enabled. Moreover, CLOCKACTIVITY bits are unnecessary with this mode also. Signed-off-by: Eero Nurkkala <ext-eero.nurkkala@nokia.com> Acked-by: Eduardo Valentin <eduardo.valentin@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-20OMAP: McBSP: Configure NO IDLE mode for DMA mode different of thresholdEduardo Valentin
Use dma mode property to configure NO IDLE or SMART IDLE of McBSPs. Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-20OMAP: McBSP: Retain McBSP FCLK clockactivityEero Nurkkala
FCLK may get autogated so that it prevents the McBSP to work properly. It is the bit 9 that must be set for maintaining the McBSP FCLK. Signed-off-by: Eero Nurkkala <ext-eero.nurkkala@nokia.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> Acked-by: Jarkko Nikula <jarkko.nikula@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-20OMAP: McBSP: Change wakeup signalsEduardo Valentin
Configure only XRDYEN and RRDYEN wakeup signals in order to get better power consumption. Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-20OMAP: McBSP: Wakeups utilizedEero Nurkkala
This patch enables the smart idle mode while McBPS is being utilized. Once it's done, force idle mode is taken instead. Apart of it, it also configures what signals will wake mcbsp up. Signed-off-by: Eero Nurkkala <ext-eero.nurkkala@nokia.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-20OMAP: McBSP: Add link DMA mode selectionPeter Ujfalusi
It adds a new sysfs file, where the user can configure the mcbsp mode to use. If the mcbsp channel is in use, it does not allow the change. Than in omap_pcm_open we can call the omap_mcbsp_get_opmode to get the mode, store it, than use it to implement the different modes. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-20OMAP: McBSP: Rename thres sysfs symbolsEduardo Valentin
This patch renames the symbols that handles threshold sysfs properties. This way we can add more sysfs properties to them. Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-20OMAP: McBSP: Create and export max_(r|t)x_thres propertyEduardo Valentin
This patch export through sysfs two properties to configure maximum threshold for transmission and reception on each mcbsp instance. Also, it exports two helper functions to allow mcbsp users to read this values. Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-20OMAP: McBSP: Add transmit/receive threshold handlerEduardo Valentin
This patch adds a way to handle transmit/receive threshold. It export to mcbsp users a callback registration procedure. Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-20OMAP: McBSP: Use appropriate value for startup delayEduardo Valentin
Increasing startup delay value as worst case: CLKSRG*2 = 8000khz: (1/8000) * 2 * 2 usec Although, 100us may give enough time for two CLKSRG, due to some unknown PM related, clock gating etc. reason, this patch increases it to 500us. Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-20OMAP: McBSP: Add IRQEN, IRQSTATUS, THRESHOLD2 and THRESHOLD1 registers.Eduardo Valentin
Adding McBSP register definition for IRQEN, IRQSTATUS, THRESHOLD2 and THRESHOLD1 registers. Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-20OMAP: McBSP: Provide functions for ASoC frame syncronizationEero Nurkkala
ASoC has an annoying bug letting either L or R channel to be played on L channel. In other words, L and R channels can switch at random. This provides McBSP funtionality that may be used to fix this feature. Signed-off-by: Eero Nurkkala <ext-eero.nurkkala@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-18Merge branch 'master' into for-linusRafael J. Wysocki
2009-08-10Merge branch 'pm-upstream/fixes' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm
2009-08-10Merge branch 'omap_fixes_31' of git://git.pwsan.com/linux-2.6Russell King
2009-08-10OMAP3: Fix omap3 sram virtual addres overlap vmalloc space after increasing ↵Janboe Ye
vmalloc size commit e85c205ac1427f2405021a36f083280ff0d0a35e increase vmalloc size. vmalloc space will overlap with OMAP3 sram virtual address. Signed-off-by: Li Hong Mei <hong-mei.li@motorola.com> Signed-off-by: Janboe Ye <yuan-bo.ye@motorola.com> Reviewed-by: Paul Walmsley <paul@pwsan.com>
2009-08-10OMAP2/3: DMA errata correctionVikram Pandita
This errata is valid for: OMAP2420 Errata 1.85 Impacts all 2420 ES rev OMAP2430 Errata 1.10 Impacts only ES1.0 Description: DMA may hang when several channels are used in parallel OMAP3430: Not impacted, so remove the errata fix for omap3 Fixed issue reported on cpu_is_omap24xx check reported by Nishant Kamat Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Reviewed-by: Nishant Kamat <nskamat@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-08-10OMAP: Fix testing of cpu defines for mach-omap1Tony Lindgren
There's no need to keep these defines limited in the ifdef block for mach-omap2. It will just cause problems testing for the CPU revision in the common code, like the next patch does for the DMA errata. Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-08-07ARM: OMAP: McBSP: Fix ASoC on OMAP1510 by fixing API of omap_mcbsp_start/stopJarkko Nikula
Simultaneous audio playback and capture on OMAP1510 can cause that second stream is stalled if there is enough delay between startup of the audio streams. Current implementation of the omap_mcbsp_start is starting both transmitter and receiver at the same time and it is called only for firstly started audio stream from the OMAP McBSP based ASoC DAI driver. Since DMA request lines on OMAP1510 are edge sensitive, the DMA request is missed if there is no DMA transfer set up at that time when the first word after McBSP startup is transmitted. The problem hasn't noted before since later OMAPs are using level sensitive DMA request lines. Fix the problem by changing API of omap_mcbsp_start and omap_mcbsp_stop by allowing to start and stop individually McBSP transmitter and receiver logics. Then call those functions individually for both audio playback and capture streams. This ensures that DMA transfer is setup before transmitter or receiver is started. Thanks to Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> for detailed problem analysis and Peter Ujfalusi <peter.ujfalusi@nokia.com> for info about DMA request line behavior differences between the OMAP generations. Reported-and-tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-05Merge branch 'pm-upstream/fixes' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into devel-stable
2009-08-05OMAP: GPIO: clear/restore level/edge detect settings on mask/unmaskKevin Hilman
If IRQ triggering is enabled, it can trigger a pending interrupt even for masked interrupts. Any pending GPIO interrupts can prevent the powerdomain from hitting retention. Problem found, reported and additional review and testing by Chunquiu Wang. Tested-by: Chunquiu Wang <cqwang@motorola.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-08-05OMAP: PM: CPUfreq: obey min/max settings of policyEero Nurkkala
Use the min/max settings from CPUfreq policy rather than processor defined min/max settings. Without this patch, it's possible to scale frequency outside the current policy range. Signed-off-by: Eero Nurkkala <ext-eero.nurkkala@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-08-05OMAP3: Fixed crash bug with serial + suspendTero Kristo
It was possible for an unhandled interrupt to occur if there was incoming serial traffic during wakeup from suspend. This was caused by the code in arch-arm/mach-omap2/serial.c keeping interrupt enabled all the time, but not acking its interrupts. Applies on top of PM branch. Use the PM begin/end hooks to ensure that the "serial idle" interrupts are disabled during the suspend path. Also, since begin/end hooks are now used, use the suspend_state that is passed in the begin hook instead of the enter hook as per the platform_suspend_ops docs. Signed-off-by: Tero Kristo <tero.kristo@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-08-05OMAP: GPIO: Fix incorrect gpio_get logic for output GPIOsRoger Quadros
gpio_get() should return DATAIN register value when the GPIO is configured as input whereas it should return DATAOUT register value when the GPIO is configured as output. Now /sys/kernel/debug/gpio shows proper values for output GPIOs Signed-off-by: Roger Quadros <ext-roger.quadros@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-07-28ARM: OMAP4: Update the GPIO supportSyed Rafiuddin
This patch adds GPIO support on OMAP4430 development platform. Signed-off-by: Syed Rafiuddin <rafiuddin.syed@ti.com>
2009-07-28ARM: OMAP4: Add McBSP supportSyed Rafiuddin
This patch creates McBSP support on OMAP4430 development platform. This patch includes corresponding base address changes for OMAP4. Signed-off-by: Syed Rafiuddin <rafiuddin.syed@ti.com>
2009-07-25OMAP2/3 clock: split, rename omap2_wait_clock_ready()Paul Walmsley
Some OMAP2/3 hardware modules have CM_IDLEST attributes that are not handled by the current omap2_wait_clock_ready() code. In preparation for patches that fix the unusual devices, rename the function omap2_wait_clock_ready() to omap2_wait_module_ready() and split it into three parts: 1. A clkops-specific companion clock return function (by default, omap2_clk_dflt_find_companion()) 2. A clkops-specific CM_IDLEST register address and bit shift return function (by default, omap2_clk_dflt_find_idlest()) 3. Code to wait for the CM to indicate that the module is ready (omap2_cm_wait_idlest()) Clocks can now specify their own custom find_companion() and find_idlest() functions; used in subsequent patches. Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-07-25OMAP3: Setup MUX settings for SDRC CKE signalsJean Pihet
This patches ensures the MUX settings are correct for the SDRC CKE signals to SDRAM. This allows the self-refresh to work when 2 chip-selects are in use. A warning is thrown away in case the initial muxing is incorrect, in order to track faulty or old-dated bootloaders. Note: The CONFIG_OMAP_MUX and CONFIG_OMAP_MUX_WARNINGS options must be enabled for the mux code to have effect. Signed-off-by: Jean Pihet <jpihet@mvista.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-07-25OMAP3 SDRC: add support for 2 SDRAM chip selectsJean Pihet
Some OMAP3 boards (Beagle Cx, Overo, RX51, Pandora) have 2 SDRAM parts connected to the SDRC. This patch adds the following: - add a new argument of type omap_sdrc_params struct* to omap2_init_common_hw and omap2_sdrc_init for the 2nd CS params - adapted the OMAP boards files to the new prototype of omap2_init_common_hw - add the SDRC 2nd CS registers offsets defines - adapt the sram sleep code to configure the SDRC for the 2nd CS Note: If the 2nd param to omap2_init_common_hw is NULL, then the parameters are not programmed into the SDRC CS1 registers Tested on 3430 SDP and Beagleboard rev C2 and B5, with suspend/resume and frequency changes (cpufreq). Signed-off-by: Jean Pihet <jpihet@mvista.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-07-24OMAP4: sDMA: Update the request lines and new registers.Santosh Shilimkar
This patch updates the platform dma.h with new dma request lines for OMAP4 peripherals. Also additional hardware register of OMAP4 sDMA module are included. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-07-21ARM: Rework omap suspend_late()/resume_early()Magnus Damm
This patch reworks platform driver power management code for omap drivers using late/early legacy callbacks. The callbacks are converted for CONFIG_SUSPEND like this: suspend_late() -> suspend_noirq() resume_early() -> resume_noirq() Signed-off-by: Magnus Damm <damm@igel.co.jp> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2009-06-23OMAP: Fix IOMEM macro for assemblyTony Lindgren
Otherwise IOMEM calculations can fail. Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-06-23OMAP2/3: Initialize gpio debounce registerjanboe
Some bootloader may initialize debounce register and this will make dbclk not consist with the debounce register after linux kernel boot up. Signed-off-by: janboe <janboe.ye@gmail.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-06-23OMAP: IOMMU: function flush_iotlb_page is not flushing correct entryFernando Guzman Lugo
The function flush_iotlb_page is not loading the CAM register with the correct entry to be flushed, so it is flushing other entry Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-06-23OMAP3: DMA: Enable idlemodes for DMA OCPKalle Jokiniemi
This patch enables MStandby smart-idle mode, autoidle smartidle mode, and the autoidle bit for DMA4_OCP_SYSCONFIG. Signed-off-by: Kalle Jokiniemi <ext-kalle.jokiniemi@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kevin Hilman <khilman@ti.deeprootsystems.com>
2009-06-23OMAP3: SRAM size fix for HS/EMU devicesTero Kristo
SRAM size fix for HS/EMU devices Signed-off-by: Tero Kristo <tero.kristo@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-06-23OMAP2/3: Add omap_type() for determining GP/EMU/HSKevin Hilman
The omap_type() function is added and returns the DEVICETYPE field of the CONTROL_STATUS register. The result can be used for conditional code based on whether device is GP (general purpose), EMU or HS (high security). Also move the type defines so omap1 code compile does not require ifdefs for sections using these defines. This code is needed for the following fix to set the SRAM size correctly for HS omaps. Also at least PM and watchdog code will need this function. Signed-off-by: Kevin Hilman <khilman@ti.deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-06-20Merge branch 'omap-clock-for-next' of git://git.pwsan.com/linux-2.6 into develRussell King
2009-06-20OMAP3: Add support for DPLL3 divisor values higher than 2Tero Kristo
Previously only 1 and 2 was supported. This is needed for DVFS VDD2 control. Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
2009-06-20OMAP3 clock/SDRC: program SDRC_MR register during SDRC clock changePaul Walmsley
Program the SDRC_MR_0 register as well during SDRC clock changes. This register allows selection of the memory CAS latency. Some SDRAM chips, such as the Qimonda HYB18M512160AF6, have a lower CAS latency at lower clock rates. Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-06-20OMAP3 clock: add a short delay when lowering CORE clk ratePaul Walmsley
When changing the SDRAM clock from 166MHz to 83MHz via the CORE DPLL M2 divider, add a short delay before returning to SDRAM to allow the SDRC time to stabilize. Without this delay, the system is prone to random panics upon re-entering SDRAM. This time delay varies based on MPU frequency. At 500MHz MPU frequency at room temperature, 64 loops seems to work okay; so add another 32 loops for environmental and process variation. Signed-off-by: Paul Walmsley <paul@pwsan.com>
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