Two fixes and four cleanups for the Raspberry Pi DMA driver, v2. Changes since v1: * Patch [1/6]: Rework the patch to fix a race condition which could still occur with v1, and no longer check for idleness of a channel using the ACTIVE flag in the CS register (which is unreliable), but check for a zero control block address instead. * Patch [2/6]: If outstanding writes fail to complete on abort of a transaction, print an error message and document a possible cause in a code comment. (Stefan Wahren) * Patch [5/6] and [6/6]: Split patch to remove dead code in two and rephrase commit subject to be less generic. (Stefan Wahren, Vinod Koul) Thanks, Lukas Lukas Wunner (6): dmaengine: bcm2835: Fix interrupt race on RT dmaengine: bcm2835: Fix abort of transactions dmaengine: bcm2835: Return void from abort of transactions dmaengine: bcm2835: Enforce control block alignment dmaengine: bcm2835: Drop gratuitous list deletion dmaengine: bcm2835: Drop outdated comment on supported transactions drivers/dma/bcm2835-dma.c | 92 +++++++++++++-------------------------- 1 file changed, 31 insertions(+), 61 deletions(-) -- 2.20.1
