linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2014-07-14	dmaengine: qcom_bam_dma: Add descriptor flags	Andy Gross	1	-2/+18
	This patch adds support for end of transaction (EOT) and notify when done (NWD) hardware descriptor flags. The EOT flag requests that the peripheral assert an end of transaction interrupt when that descriptor is complete. It also results in special signaling protocol that is used between the attached peripheral and the core using the DMA controller. Clients will specify DMA_PREP_INTERRUPT to enable this flag. The NWD flag requests that the peripheral wait until the data has been fully processed by the peripheral before moving on to the next descriptor. Clients will specify DMA_PREP_FENCE to enable this flag. Signed-off-by: Andy Gross <agross@codeaurora.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-04-05	dmaengine: add Qualcomm BAM dma driver	Andy Gross	1	-0/+1111
	Add the DMA engine driver for the QCOM Bus Access Manager (BAM) DMA controller found in the MSM 8x74 platforms. Each BAM DMA device is associated with a specific on-chip peripheral. Each channel provides a uni-directional data transfer engine that is capable of transferring data between the peripheral and system memory (System mode), or between two peripherals (BAM2BAM). The initial release of this driver only supports slave transfers between peripherals and system memory. Signed-off-by: Andy Gross <agross@codeaurora.org> Tested-by: Stanimir Varbanov <svarbanov@mm-sol.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>