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path: root/arch/arm/plat-omap/dma.c
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2010-02-24omap4: Use irq line defines from irq-44xx.hSantosh Shilimkar1-1/+1
This patch removes all the omap4 specific irq line defines from plat/irqs.h and includes auto-generated irqs-44xx.h All the legacy naming style defines are replaced with the one from irqs-44xx.h Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com> Reviewed-by: Paul Walmsley <paul@pwsan.com> [tony@atomide.com: updated to compile with usb-musb.c] Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-23omap: sdma: Limit the secure reserve channel fix for omap3Santosh Shilimkar1-1/+2
The commit 'ba50ea7e' reserves DMA channels 0 and 1 on high security devices, in order to avoid collision between kernel dma transfers and ROM code dma transfers. This fix is applicable only for OMAP3 so add an appropriate check. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> CC: Kalle Jokiniemi <kalle.jokiniemi@digia.com> CC: Kevin Hilman <khilman@deeprootsystems.com> Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com> Reviewed-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-23omap4: sdma: Enable the idle modes on omap4Santosh Shilimkar1-1/+1
This patch enables smart-idle idlemodes and autoidle for sDMA on OMAP4 Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com> Reviewed-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-15omap2/3/4: Replace orred CONFIG_ARCH_OMAP2/3/4 with CONFIG_ARCH_OMAP2PLUSTony Lindgren1-2/+1
omap: Replace orred CONFIG_ARCH_OMAP2/3/4 with CONFIG_ARCH_OMAP2PLUS Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-01-20OMAP: dma_chan[lch_head].flag & OMAP_DMA_ACTIVE tested twice in ↵Roel Kluin1-1/+1
omap_dma_unlink_lch() The same flag and bits were tested twice. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-12omap1: DMA: move LCD related code from plat-omap to mach-omap1Janusz Krzysztofik1-408/+2
All of the LCD DMA code in plat-omap/dma.c appears to be OMAP1-only (and apparently only is available on a subset of OMAP1 chips). Move this code to mach-omap1/lcd_dma.c. Tested on OMAP1510 Amstrad Delta. Compile-tested with omap_generic_2420_defconfig. Reported-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Reviewed-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-10Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (42 commits) tree-wide: fix misspelling of "definition" in comments reiserfs: fix misspelling of "journaled" doc: Fix a typo in slub.txt. inotify: remove superfluous return code check hdlc: spelling fix in find_pvc() comment doc: fix regulator docs cut-and-pasteism mtd: Fix comment in Kconfig doc: Fix IRQ chip docs tree-wide: fix assorted typos all over the place drivers/ata/libata-sff.c: comment spelling fixes fix typos/grammos in Documentation/edac.txt sysctl: add missing comments fs/debugfs/inode.c: fix comment typos sgivwfb: Make use of ARRAY_SIZE. sky2: fix sky2_link_down copy/paste comment error tree-wide: fix typos "couter" -> "counter" tree-wide: fix typos "offest" -> "offset" fix kerneldoc for set_irq_msi() spidev: fix double "of of" in comment comment typo fix: sybsystem -> subsystem ...
2009-12-07Merge branch 'for-next' into for-linusJiri Kosina1-1/+1
Conflicts: kernel/irq/chip.c
2009-12-04tree-wide: fix assorted typos all over the placeAndré Goddard Rosa1-1/+1
That is "success", "unknown", "through", "performance", "[re|un]mapping" , "access", "default", "reasonable", "[con]currently", "temperature" , "channel", "[un]used", "application", "example","hierarchy", "therefore" , "[over|under]flow", "contiguous", "threshold", "enough" and others. Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-11-22Merge 7xx-iosplit-plat-merge with omap-fixesTony Lindgren1-13/+73
Merge branch '7xx-iosplit-plat-merge' into omap-for-linus
2009-11-12OMAP: PM: Clear DMA channel state after a wakeupAaro Koskinen1-0/+6
Clear DMA channel states so that users can assume a known initial state. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-11-12OMAP3: PM: Fix secure SRAM context save/restoreKalle Jokiniemi1-15/+16
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: Kalle Jokiniemi <kalle.jokiniemi@digia.com> Signed-off-by: Jouni Hogander <jouni.hogander@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-11-12OMAP: PM: DMA context save/restore for off-mode supportTero Kristo1-0/+39
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: Tero Kristo <tero.kristo@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-11-11omap: Fix omapfb/lcdc on OMAP1510 broken when PM setJanusz Krzysztofik1-0/+8
With CONFIG_PM=y, the omapfb/lcdc device on Amstrad Delta, after initially starting correctly, breaks with the following error messages: omapfb omapfb: resetting (status 0xffffff96,reset count 1) ... omapfb omapfb: resetting (status 0xffffff96,reset count 100) omapfb omapfb: too many reset attempts, giving up. Looking closer at this I have found that it had been broken almost 2 years ago with commit 2418996e3b100114edb2ae110d5d4acb928909d2, PM fixes for OMAP1. The definite reason for broken omapfb/lcdc behavoiur in PM mode appeared to be ARM_IDLECT1:IDLIF_ARM (bit 6) put into idle regardless of LCD DMA possibly running. The bit were set based on return value of the omap_dma_running() function that did not check for dedicated LCD DMA channel status. The patch below fixes this. Note that the hardcoded register value will be fixed during the next merge cycle to use OMAP_LCDC_ defines. Currently the OMAP_LCDC_ defines are local to drivers/video/omap/lcdc.c, so let's not start moving those right now. Created against linux-2.6.32-rc6 Tested on Amstrad Delta Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-11omap: Fix race condition in omap dma driverTao Hu1-0/+6
The bug could cause irq enable bit of one DMA channel is cleared/set unexpectedly when 2 (or more) drivers are calling omap_request_dma()/omap_free_dma() simultaneously Signed-off-by: Fei Yang <AFY095@motorola.com> Signed-off-by: Tao Hu <taohu@motorola.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-11-11Merge branch '7xx-iosplit-plat' with omap-fixesTony Lindgren1-12/+26
2009-10-23omap: SDMA: Fix omap_stop_dma() API for channel linkingSantosh Shilimkar1-10/+8
OMAP sDMA driver API omap_stop_dma() doesn't really stop the dma when used in linking scenario. The DMA channel needs to be disabled before resetting the chain. Also fix clearing of the OMAP_DMA_ACTIVE status in the linked case. Cc: Hari n <hari.zoom@gmail.com> Cc: Jarkko Nikula <jhnikula@gmail.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Venkatraman S <svenkatr@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-20omap: headers: Move remaining headers from include/mach to include/platTony Lindgren1-2/+2
Move the remaining headers under plat-omap/include/mach to plat-omap/include/plat. Also search and replace the files using these headers to include using the right path. This was done with: #!/bin/bash mach_dir_old="arch/arm/plat-omap/include/mach" plat_dir_new="arch/arm/plat-omap/include/plat" headers=$(cd $mach_dir_old && ls *.h) omap_dirs="arch/arm/*omap*/ \ drivers/video/omap \ sound/soc/omap" other_files="drivers/leds/leds-ams-delta.c \ drivers/mfd/menelaus.c \ drivers/mfd/twl4030-core.c \ drivers/mtd/nand/ams-delta.c" for header in $headers; do old="#include <mach\/$header" new="#include <plat\/$header" for dir in $omap_dirs; do find $dir -type f -name \*.[chS] | \ xargs sed -i "s/$old/$new/" done find drivers/ -type f -name \*omap*.[chS] | \ xargs sed -i "s/$old/$new/" for file in $other_files; do sed -i "s/$old/$new/" $file done done for header in $(ls $mach_dir_old/*.h); do git mv $header $plat_dir_new/ done Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-20omap: Use ioremap in dma.cTony Lindgren1-10/+24
Use ioremap in dma.c Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-14omap: SDMA: Fixing bug in omap_dma_set_global_params()Anuj Aggarwal1-6/+9
Argument tparams was not being used to program global register GCR.HI_THREAD_RESERVED. This patch fixes the same. Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-09-18Merge branch 'omap-for-linus' of ↵Linus Torvalds1-4/+4
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (47 commits) OMAP clock: use debugfs_remove_recursive() for rewinding OMAP2/3/4 core: create omap_device layer OMAP: omap_hwmod: call omap_hwmod init at boot; create interconnects OMAP2/3/4: create omap_hwmod layer OMAP2/3 board-*.c files: read bootloader configuration earlier OMAP2/3/4 PRCM: add module IDLEST wait code OMAP2/3 PM: create the OMAP PM interface and add a default OMAP PM no-op layer OMAP3 clock: remove superfluous calls to omap2_init_clk_clkdm OMAP clock: associate MPU clocks with the mpu_clkdm OMAP3 clock: Fixed processing of bootarg 'mpurate' OMAP: SDRC: Add several new register definitions OMAP: powerdomain: Fix overflow when doing powerdomain deps lookups. OMAP: PM: Added suspend target state control to debugfs for OMAP3 OMAP: PM debug: Add PRCM register dump support OMAP: PM debug: make powerdomains use PM-debug counters OMAP: PM: Add pm-debug counters OMAP: PM: Add closures to clkdm_for_each and pwrdm_for_each. OMAP: PM: Hook into PM counters OMAP: PM counter infrastructure. OMAP3: PM: fix lockdep warning caused by omap3_pm_init ...
2009-09-10Merge branch 'topic/asoc' into for-linusTakashi Iwai1-0/+10
* 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 ...
2009-08-28OMAP: Remove OMAP_IO_ADDRESS, use OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS insteadTony Lindgren1-4/+4
Search and replace OMAP_IO_ADDRESS with OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS, and convert omap_read/write into a functions instead of a macros. Also rename OMAP_MPUIO_VBASE to OMAP1_MPUIO_VBASE. In the long run, most code should use ioremap + __raw_read/write instead. Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-08-25ARM: OMAP: DMA: Add support for DMA channel self linking on OMAP1510Janusz Krzysztofik1-0/+10
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>
2009-08-10OMAP2/3: DMA errata correctionVikram Pandita1-1/+3
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>
2009-06-23OMAP3: DMA: Enable idlemodes for DMA OCPKalle Jokiniemi1-0/+13
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>
2009-05-29ARM: OMAP4: Add minimal support for omap4Santosh Shilimkar1-5/+18
This patch adds the support for OMAP4. The platform and machine specific headers and sources updated for OMAP4430 SDP platform. OMAP4430 is Texas Instrument's SOC based on ARM Cortex-A9 SMP architecture. It's a dual core SOC with GIC used for interrupt handling and SCU for cache coherency. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-05-29ARM: OMAP2/3: sDMA: Correct omap_request_dma_chain(), v2Santosh Shilimkar1-1/+1
Original OMAP DMA chaining design had chain_id as one of the callback parameters. Patch 538528de0cb256f65716ab2e9613d9e920f97fe2 changed it to use logical channel instead. Correct the naming for callback to also use logical channel number instead of the chain_id. More details are on this email thread: http://marc.info/?l=linux-omap&m=122961071931459&w=2 Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-05-29ARM: OMAP2/3: DMA: implement trans copy and const fillTomi Valkeinen1-28/+49
Implement transparent copy and constant fill features for OMAP2/3. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-04-23ARM: OMAP: Fix for possible race condition in omap_free_dma()Santosh Shilimkar1-7/+6
Fix the possible race condition in omap_free_dma(). Function omap_free_dma() sets the dev_id = -1 and then accesses the channel afterwards to clear it. But setting the dev_id=-1 makes the channel available for allocation again. So it is possible someone else can grab it and results are unpredictable. To avod this DMA channle is cleared first and then the dev_id = -1 is set. Thanks to McNeil, Sean <sean.mcneil@ti.com> for ointing out this issue. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-24ARM: OMAP: Dispatch only relevant DMA interruptsSantosh Shilimkar1-1/+3
This fixes the spurious interrupt issue on a DMA channel. In OMAP sDMA, contrast to the SDMA.DMA4_CSRi registers, the SDMA.DMA4_IRQSTATUS_Lj registers are updated regardless of the corresponding bits in the SDMA.DMA4_IRQENABLE_Lj registers. Since there are four sDMA interrupt lines and if more than one line is actively used by two concurrently running sDMA softwares modules,then the spurious interrupt can be observed on the other lines. Fix in this patch will only dispatch the relevant and enabled interrupts on a particular line thus perevting spurious IRQ. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Nishant Kamat <nskamat@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-24ARM: OMAP: Get available DMA channels from cmdlineSantosh Shilimkar1-1/+19
This patch set up a cmdline option for omap dma for masking the available channels. It is needed since the OMAP DMA is a system wide resource and can be used by another software apart from the kernel. To reserve the omap SDMA channels for kernel dma usage, use cmdline bootarg "omap_dma_reserve_ch=". The valid range is 1 to 32. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Nishant Kamat <nskamat@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-24[OMAP850] Changes to memory subsystemZebediah C. McClure1-2/+2
Changes to memory subsystem. Signed-off-by: Zebediah C. McClure <zmc@lurian.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-29ARM: OMAP: DMA: Fix uninitialized channel flagsJarkko Nikula1-0/+1
This has similar symptoms than 66c23551b1b774e2be3c7bdf91c0ebf2c7a3519e where just omap_request_dma, omap_dma_link_lch and omap_dma_unlink_lch can cause incorrect dump_stack(). Here it can happen if channel has been used before and the channel flags variable holds old status. Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-29ARM: OMAP: Fix race in OMAP2/3 DMA IRQ handlingJuha Yrjola1-2/+2
CSR must be cleared before invoking the callback. If the callback function starts a new, fast DMA transfer on the same channel, the completion status might lost if CSR is cleared after the callback invocation. Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-15ARM: OMAP: Fix DMA CCR programming for request line > 63, v3Anand Gadiyar1-8/+5
Bug in existing code causes synchro control to be set +32 if request line greater than 63 is used. Also clean up the function a bit by removing extra parens and clearing the bits at before write. Reported by Wenbiao Wang. Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-16Merge branch 'omap3-upstream' of ↵Russell King1-1/+14
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 into devel
2008-12-11ARM: OMAP3: DMA: Fix for sDMA Errata 1.113Santosh Shilimkar1-1/+14
SDMA channel is not disabled after transaction error. So explicitly disable it. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked By : Nishant kamat <nskamat@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-11-29[ARM] Hide ISA DMA API when ISA_DMA_API is unsetRussell King1-1/+1
When ISA_DMA_API is unset, we're not implementing the ISA DMA API, so there's no point in publishing the prototypes via asm/dma.h, nor including the machine dependent parts of that API. This allows us to remove a lot of mach/dma.h files which don't contain any useful code. Unfortunately though, some platforms put their own private non-ISA definitions into mach/dma.h, so we leave these behind and fix the appropriate #include statments. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-05[ARM] omap: fix lots of 'Using plain integer as NULL pointer'Russell King1-1/+1
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-05[ARM] omap: Fix IO_ADDRESS() macrosRussell King1-3/+3
OMAP1_IO_ADDRESS(), OMAP2_IO_ADDRESS() and IO_ADDRESS() returns cookies for use with __raw_{read|write}* for accessing registers. Therefore, these macros should return (void __iomem *) cookies, not integer values. Doing this improves typechecking, and means we can find those places where, eg, DMA controllers are incorrectly given virtual addresses to DMA to, or physical addresses are thrown through a virtual to physical address translation. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/machRussell King1-2/+2
This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07[ARM] Remove asm/hardware.h, use asm/arch/hardware.h insteadRussell King1-1/+1
Remove includes of asm/hardware.h in addition to asm/arch/hardware.h. Then, since asm/hardware.h only exists to include asm/arch/hardware.h, update everything to directly include asm/arch/hardware.h and remove asm/hardware.h. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03ARM: OMAP: DMA: Clean-up codeTony Lindgren1-123/+132
DMA clean-up, mostly checkpatch.pl fixes. Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: DMA: Remove __REG accessTony Lindgren1-179/+324
Remove __REG access in DMA code, use dma_read/write instead: - dynamically set the omap_dma_base based on the omap type - omap_read/write becomes dma_read/write - dma channel registers are read with dma_ch_read/write Cc: David Brownell <david-b@pacbell.net> Cc: linux-usb@vger.kernel.org Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: DMA: Make channels dynamic for multi-bootTony Lindgren1-21/+41
Make DMA channels dynamic for multi-boot Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-06-06ARM: OMAP: DMA: Don't mark channel active in omap_enable_channel_irqJarkko Nikula1-2/+0
Channel should be marked active only when DMA is really started. Otherwise just omap_request_dma, omap_dma_link_lch and omap_dma_unlink_lch will cause incorrect dump_stack(). Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-05-09ARM: OMAP: DMA: Fix incorrect channel linkingJarkko Nikula1-1/+1
Function enable_lnk does incorrect channel link on non-omap1 builds if chain is created manually with omap_request_dma and omap_dma_link_lch functions. Fix this by making sure that next_linked_ch field is initialized to -1 just in omap_request_dma. Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-03-20ARM: OMAP: Fix DMA CLINK mask, clear spurious interruptGadiyar, Anand1-2/+3
Fix CLINK mask, clear spurious interrupt. Signed-off-by: Gadiyar, Anand <gadiyar@ti.com> Signed-off-by: Kevin Hilman <khilman@mvista.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-03-20ARM: OMAP: Fix chain_a_transfer return valueAnand Gadiyar1-2/+2
This patch changes the return value of omap_dma_chain_a_transfer to 0 on success instead of the flag 'start_dma', which wasn't really useful for anything. Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
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