kernel/linux.git/drivers/dma/ipu, branch linux-2.6.35.y

DMAENGINE: extend the control command to include an arg

2010-05-17T23:30:42+00:00

This adds an argument to the DMAengine control function, so that we can later provide control commands that need some external data passed in through an argument akin to the ioctl() operation prototype. [dan.j.williams@intel.com: fix up some missed conversions] Signed-off-by: Linus Walleij Signed-off-by: Dan Williams

dmaengine: provide helper for setting txstate

2010-03-26T23:52:10+00:00

Simple conditional struct filler to cut out some duplicated code. Signed-off-by: Dan Williams

DMAENGINE: generic channel status v2

2010-03-26T23:50:49+00:00

Convert the device_is_tx_complete() operation on the DMA engine to a generic device_tx_status()operation which can return three states, DMA_TX_RUNNING, DMA_TX_COMPLETE, DMA_TX_PAUSED. [dan.j.williams@intel.com: update for timberdale] Signed-off-by: Linus Walleij Acked-by: Mark Brown Cc: Maciej Sosnowski Cc: Nicolas Ferre Cc: Pavel Machek Cc: Li Yang Cc: Guennadi Liakhovetski Cc: Paul Mundt Cc: Ralf Baechle Cc: Haavard Skinnemoen Cc: Magnus Damm Cc: Liam Girdwood Cc: Joe Perches Cc: Roland Dreier Signed-off-by: Dan Williams

DMAENGINE: generic slave control v2

2010-03-26T23:44:01+00:00

Convert the device_terminate_all() operation on the DMA engine to a generic device_control() operation which can now optionally support also pausing and resuming DMA on a certain channel. Implemented for the COH 901 318 DMAC as an example. [dan.j.williams@intel.com: update for timberdale] Signed-off-by: Linus Walleij Acked-by: Mark Brown Cc: Maciej Sosnowski Cc: Nicolas Ferre Cc: Pavel Machek Cc: Li Yang Cc: Guennadi Liakhovetski Cc: Paul Mundt Cc: Ralf Baechle Cc: Haavard Skinnemoen Cc: Magnus Damm Cc: Liam Girdwood Cc: Joe Perches Cc: Roland Dreier Signed-off-by: Dan Williams

Merge branch 'coh' into dmaengine

2010-03-04T04:22:21+00:00

async-tx: fix buffer submission error handling in ipu_idma.c

2010-02-10T19:01:06+00:00

If submitting new buffer failed, a wrong descriptor gets completed and it doesn't check, if a callback is at all defined, which can lead to an Oops. Fix these bugs and make ipu_update_channel_buffer() void, because it never fails. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Dan Williams

dma: cases IPU_PIX_FMT_BGRA32, BGR32 and ABGR32 are the same in ipu_ch_param_set_size()

2010-02-03T06:42:25+00:00

In these cases the same statements are executed. Signed-off-by: Roel Kluin Acked-by: Guennadi Liakhovetski Signed-off-by: Andrew Morton Signed-off-by: Dan Williams

dma: fix ipu_idmac.c to not discard the last queued buffer

2009-05-12T21:41:48+00:00

This also fixes the case of a single queued buffer, for example, when taking a single frame snapshot with the mx3_camera driver. Reported-by: Agustin Ferrin Pozuelo Tested-by: Agustin Ferrin Pozuelo Signed-off-by: Guennadi Liakhovetski Signed-off-by: Dan Williams

ipu_idmac: Use disable_irq_nosync() from within irq handlers.

2009-05-05T19:16:56+00:00

disable_irq() should wait for all running handlers to complete before returning. As such, if it's used to disable an interrupt from that interrupt's handler it will deadlock. This replaces the dangerous instances with the _nosync() variant which doesn't have this problem. Note the 2 handlers in question are only used #ifdef DEBUG so I imagine these code paths don't get hit often. Signed-off-by: Ben Nizette Acked-by: Guennadi Liakhovetski Signed-off-by: Dan Williams

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx

2009-04-03T19:13:45+00:00

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: dma: Add SoF and EoF debugging to ipu_idmac.c, minor cleanup dw_dmac: add cyclic API to DW DMA driver dmaengine: Add privatecnt to revert DMA_PRIVATE property dmatest: add dma interrupts and callbacks dmatest: add xor test dmaengine: allow dma support for async_tx to be toggled async_tx: provide __async_inline for HAS_DMA=n archs dmaengine: kill some unused headers dmaengine: initialize tx_list in dma_async_tx_descriptor_init dma: i.MX31 IPU DMA robustness improvements dma: improve section assignment in i.MX31 IPU DMA driver dma: ipu_idmac driver cosmetic clean-up dmaengine: fail device registration if channel registration fails