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Krzysztof Kozlowski authored
Some drivers implement only pause operation (no resuming). Example is pl330 where pause is needed for getting residuum. pl330 does not support resume operation, transfer must be stopped after pause. However for slaves this is exposed always as "pause and resume" which introduces subtle errors on Odroid U3 board (Exynos4412 with pl330). After adding pause function to pl330 driver the audio playback (utilizing DMA) gets choppy after some time (approximately 24 hours). Fix this by exposing "cmd_pause" if and only if pause and resume are implemented. Signed-off-by:
Krzysztof Kozlowski <k.kozlowski@samsung.com> Reported-by: gabriel@unseen.is Reported-by:
Marek Szyprowski <m.szyprowski@samsung.com> Cc: <stable@vger.kernel.org> Fixes: 88987d2c ("dmaengine: pl330: add DMA_PAUSE feature") Acked-by:
Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by:
Vinod Koul <vinod.koul@intel.com>
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