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path: root/arch/arm/plat-omap/dma.c
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2009-01-29ARM: OMAP: DMA: Fix uninitialized channel flagsJarkko Nikula
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 Yrjola
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 Gadiyar
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>
2008-12-15Merge branch 'omap3-upstream' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 into devel
2008-12-10ARM: OMAP3: DMA: Fix for sDMA Errata 1.113Santosh Shilimkar
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 King
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 King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-05[ARM] omap: Fix IO_ADDRESS() macrosRussell King
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 King
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 King
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 Lindgren
DMA clean-up, mostly checkpatch.pl fixes. Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: DMA: Remove __REG accessTony Lindgren
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 Lindgren
Make DMA channels dynamic for multi-boot Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-06-05ARM: OMAP: DMA: Don't mark channel active in omap_enable_channel_irqJarkko Nikula
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 Nikula
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, Anand
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 Gadiyar
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>
2008-03-06Merge branch 'omap-fixes'Russell King
* omap-fixes: ARM: OMAP2: Register the L4 io bus to boot OMAP2 ARM: OMAP1: Compile in other 16xx boards to OSK defconfig ARM: OMAP1: Refresh H2 defconfig ARM: OMAP1: Refresh OSK defconfig ARM: OMAP: gpio lockdep updates ARM: OMAP1: omap1/pm.c build fix ARM: OMAP1: omap h2 regression fix ARM: OMAP1: Fix compile for boards depending on old gpio expander ARM: OMAP1: omap h3 regression and build fix ARM: OMAP: Remove compiler warning when i2c is not set ARM: OMAP: fix omap i2c init (regression) ARM: OMAP: fix false lockdep warnings ARM: OMAP: Fix sleep under spinlock for cpufreq ARM: OMAP: Pass logical DMA channel number always to callback handlers
2008-03-06[ARM] replace remaining __FUNCTION__ occurrencesHarvey Harrison
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-03-05ARM: OMAP: Pass logical DMA channel number always to callback handlersJarkko Nikula
This makes parameter passing to DMA handlers uniform between non-chained and chained transfers and makes debugging easier. Additional data like chain_id can be always passed to handlers via callback data if needed. Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-02-08ARM: OMAP: Add DMA support for chaining and 3430Anand Gadiyar
Add DMA support for chaining and 3430. Also remove old DEBUG_PRINTS as noted by Russell King. Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2007-10-19Convert files to UTF-8 and some cleanupsJan Engelhardt
* Convert files to UTF-8. * Also correct some people's names (one example is Eißfeldt, which was found in a source file. Given that the author used an ß at all in a source file indicates that the real name has in fact a 'ß' and not an 'ss', which is commonly used as a substitute for 'ß' when limited to 7bit.) * Correct town names (Goettingen -> Göttingen) * Update Eberhard Mönkeberg's address (http://lkml.org/lkml/2007/1/8/313) Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-09-20ARM: OMAP: add SoSSI clock (remove manual checking of SoSSI state from idle)Imre Deak
The SoSSI driver should already take care of this by enabling / disabling its clock when necessary, so this legacy callout from the PM idle code is not needed any more. Signed-off-by: Imre Deak <imre.deak@solidboot.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2007-05-20[ARM] spelling fixesSimon Arlott
Spelling fixes in arch/arm/. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-10ARM: OMAP: Fix warning in dma.cTony Lindgren
Fix warning: 'offset' might be uninitialized Signed-off-by: Tony Lindgren <tony@atomide.com>
2007-05-08ARM: OMAP: Add DMA IRQ sanity checksJuha Yrjola
Add DMA IRQ sanity checks Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-03-02ARM: OMAP: Proper handling of DMA4_IRQSTATUS_L0Timo Teras
The register bits are reset by writing one. Remove the unneeded reads and fix writes to not clear too many bits. Signed-off-by: Timo Teras <timo.teras@solidboot.com> Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2006-10-06Initial blind fixup for arm for irq changesLinus Torvalds
Untested, but this should fix up the bulk of the totally mechanical issues, and should make the actual detail fixing easier. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-25ARM: OMAP: Sync DMA with linux-omap treeTony Lindgren
This patch syncs OMAP DMA code with linux-omap tree. Mostly allow changing DMA callback function and set OMAP2 specific transfer mode. Signed-off-by: Tony Lindgren <tony@atomide.com>
2006-09-25ARM: OMAP: DMA source and destination addresses are unsignedTony Lindgren
Also export some omap24xx specific DMA functions. Signed-off-by: Tony Lindgren <tony@atomide.com>
2006-09-25ARM: OMAP: Sleep is prevented when no LCD is attachedImre Deak
We have to make sure that the LCD DMA external destination bit is cleared by default, otherwise OMAP won't sleep. Signed-off-by: Imre Deak <imre.deak@solidboot.com> Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2006-07-02[PATCH] ARM: fixup irqflags breakage after ARM genirq mergeThomas Gleixner
The irgflags consolidation did conflict with the ARM to generic IRQ conversion and was not applied for ARM. Fix it up. Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02Merge branch 'genirq' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'genirq' of master.kernel.org:/home/rmk/linux-2.6-arm: (24 commits) [ARM] 3683/2: ARM: Convert at91rm9200 to generic irq handling [ARM] 3682/2: ARM: Convert ixp4xx to generic irq handling [ARM] 3702/1: ARM: Convert ixp23xx to generic irq handling [ARM] 3701/1: ARM: Convert plat-omap to generic irq handling [ARM] 3700/1: ARM: Convert lh7a40x to generic irq handling [ARM] 3699/1: ARM: Convert s3c2410 to generic irq handling [ARM] 3698/1: ARM: Convert sa1100 to generic irq handling [ARM] 3697/1: ARM: Convert shark to generic irq handling [ARM] 3696/1: ARM: Convert clps711x to generic irq handling [ARM] 3694/1: ARM: Convert ecard driver to generic irq handling [ARM] 3693/1: ARM: Convert omap1 to generic irq handling [ARM] 3691/1: ARM: Convert imx to generic irq handling [ARM] 3688/1: ARM: Convert clps7500 to generic irq handling [ARM] 3687/1: ARM: Convert integrator to generic irq handling [ARM] 3685/1: ARM: Convert pxa to generic irq handling [ARM] 3684/1: ARM: Convert l7200 to generic irq handling [ARM] 3681/1: ARM: Convert ixp2000 to generic irq handling [ARM] 3680/1: ARM: Convert footbridge to generic irq handling [ARM] 3695/1: ARM drivers/pcmcia: Fixup includes [ARM] 3689/1: ARM drivers/input/touchscreen: Fixup includes ... Manual conflict resolved in kernel/irq/handle.c (butt-ugly ARM tickless code).
2006-07-01[ARM] 3701/1: ARM: Convert plat-omap to generic irq handlingThomas Gleixner
Patch from Thomas Gleixner From: Thomas Gleixner <tglx@linutronix.de> Fixup the conversion to generic irq subsystem. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-26ARM: OMAP: Fix DMA channel irq handling for omap24xxTony Lindgren
- DMA CSR register is cleared by reading on omap1, but on omap2 it is cleard by writing to it. - DMA TOUT interrupt does not exist on omap24xx, rename it - Add SECURE and MISALIGNED errors by default for omap24xx - Add defines for external DMA request lines Signed-off-by: Tony Lindgren <tony@atomide.com>
2006-06-26ARM: OMAP: OMAP2 DMA burst supportKyungmin Park
OMAP2 DMA burst setting support Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2006-06-26ARM: OMAP: DMA transfer parameter configuration fixPeter Ujfalusi
Fix for re-using OMAP DMA channel with different transfer parameters. Bits in the CCR register need to be cleaned as well in some cases. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2006-04-02[ARM] 3454/1: ARM: OMAP: 6/8 Update framebuffer low-level init code, take 2Tony Lindgren
Patch from Tony Lindgren Update OMAP framebuffer low-level init code from linux-omap tree by Imre Deak. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-10[PATCH] turn "const static" into "static const"Jesper Juhl
ICC likes to complain about storage class not being first, GCC doesn't care much (except for cases like "inline static"). have a hard time seeing how it could break anything. Thanks to Gabriel A. Devenyi for pointing out http://linuxicc.sourceforge.net/ which is what made me create this patch. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-10[ARM] 3142/1: OMAP 2/5: Update files common to omap1 and omap2Tony Lindgren
Patch from Tony Lindgren This patch syncs the mainline kernel with linux-omap tree. The highlights of the patch are: - Serial port and framebuffer init improvments by Imre Deak - Common omap pin mux framework by Tony Lindgren - Common omap clock framework by Tony Lindren Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-07[ARM] 2887/1: OMAP 2/4: Update files common to omap1 and omap2, take 2Tony Lindgren
Patch from Tony Lindgren This patch syncs the mainline kernel with linux-omap tree. The highlights of the patch are: - Clock updates by Tuukka Tikkanen, Juha Yrjola, Daniel Petrini and Tony Lindgren - DMA fixes by Imre Deak, Juha Yrjola and Daniel Petrini - Add support to dual-mode hardware timers by Lauri Leukkunen - GPIO support for 24xx by Paul Mundt - GPIO wake-up support by Tony Lindgren - Better GPIO interrupt handler to not lose interrupts by Ralph Walden and Ladislav Michl - Power Management updates by Tuukka Tikkanen - Make Power Management code use new SRAM functions by Tony Lindgren Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-10[PATCH] ARM: 2804/1: OMAP update 9/11: Update OMAP arch filesTony Lindgren
Patch from Tony Lindgren This patch by various OMAP developers syncs the OMAP specific arch files with the linux-omap tree. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-10[PATCH] ARM: 2812/1: OMAP update 7c/11: Move arch-omap to plat-omapTony Lindgren
Patch from Tony Lindgren This patch move common OMAP code from arch-omap to plat-omap directory. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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