kernel/git/stable/linux.git/drivers/dma/shdma.h, branch master

dma: move shdma driver to an own directory

2012-07-13T03:42:59+00:00

The shdma driver is going to be split into multiple files. To make this more convenient move it to an own directory. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Vinod Koul

dmaengine: move last completed cookie into generic dma_chan structure

2012-03-13T06:06:06+00:00

Every DMA engine implementation declares a last completed dma cookie in their private dma channel structures. This is pointless, and forces driver specific code. Move this out into the common dma_chan structure. Signed-off-by: Russell King Tested-by: Linus Walleij Reviewed-by: Linus Walleij Acked-by: Jassi Brar [imx-sdma.c & mxs-dma.c] Tested-by: Shawn Guo Signed-off-by: Vinod Koul

dma: shdma: transfer based runtime PM

2011-09-28T04:37:40+00:00

Currently the shdma dmaengine driver uses runtime PM to save power, when no channel on the specific controller is requested by a user. This patch switches the driver to count individual DMA transfers. That way the controller can be powered down between transfers, even if some of its channels are in use. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Vinod Koul

dmaengine: shdma: add chcr_ie_bit

2011-06-21T08:56:01+00:00

IE bit position on CHCR register is not same in all DMAC. This patch adds new "chcr_ie_bit" to decide it. Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt

dmaengine: shdma: add chcr_write/read function

2011-06-21T08:55:57+00:00

CHCR register position is not same in all DMAC. This patch adds new "chcr_offset" to decide it. Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt

dmaengine: shdma: add to_sh_dev define

2011-06-16T06:03:36+00:00

This patch adds "to_sh_dev" macro, and clean up codes. Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt

dmaengine: shdma: Update SH_DMAC_MAX_CHANNELS to 20

2011-05-25T02:36:17+00:00

Update SH_DMAC_MAX_CHANNELS to support the 20 DMA channels included in the sh73a0 SY-DMAC hardware. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt

dmaengine: shdma: add runtime- and system-level power management

2011-05-23T03:44:33+00:00

This patch extends and fixes runtime power management in the shdma driver to support powering down the DMA controller and adds support for system-level suspend and resume. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Paul Mundt

dma: shdma: NMI support.

2010-12-17T10:16:10+00:00

Presently DMA transfers are interrupted and aborted by the NMI. This implements some basic logic for more gracefully handling and clearing each controller's NMIF flag via the NMI die chain, needed to resume transfers post-NMI. Reported-by: Michael Szafranek Signed-off-by: Paul Mundt

dmaengine: shdma: Introduce include/linux/sh_dma.h

2010-03-23T08:20:06+00:00

Create a common platform data header file for the shdma dmaengine driver. This is done by moving common structures from sh asm/dmaengine.h to linux/sh_dma.h. DMA registers are also copied from sh asm/dma-register.h to make the code architecture independent. The sh header file asm/dmaengine.h is still kept with the slave id enum. This allows us to keep the old processor specific code as is and slowly move over to slave id enums in per-processor headers. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt