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All device_prep_dma_* functions and device_issue_pending can be called from an interrupt context. As this includes hard IRQs, we must use spin_lock_irqsave() instead of spin_lock_bh() to access chan->lock. Signed-off-by: Michael Tretter <m.tretter@pengutronix.de> Signed-off-by: Vinod Koul <vkoul@kernel.org> |
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Makefile | ||
xilinx_dma.c | ||
zynqmp_dma.c |