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dmaengine: rcar-dmac: Implement support for hardware descriptor lists
authorLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Wed, 16 Jul 2014 21:15:48 +0000 (23:15 +0200)
committerLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tue, 23 Dec 2014 09:13:02 +0000 (11:13 +0200)
The DMAC supports hardware-based auto-configuration from descriptor
lists. This reduces the number of interrupts required for processing a
DMA transfer. Support that mode in the driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>

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