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Commit a2f6721b authored by Alexander Smirnov's avatar Alexander Smirnov Committed by Vinod Koul
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dmaengine: ti-dma-crossbar: Fix dra7 reserve function 



DMA crossbar uses 'xbar->dma_inuse' variable to manage allocated routes.
Each bit represents respective DMA channel. If the channel is free, bit
is set to '0', if channel is allocated, bit should be set to '1'.

In reserve function, the bits for requested DMA channels are cleared, so
they are not really reserved, but freed and become ready for allocation.

Signed-off-by: default avatarAlexander Smirnov <asmirnov@ilbers.de>
Acked-by: default avatarPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent b753351e

drivers/dma/ti-dma-crossbar.c

+1 −1
Original line number Diff line number Diff line
@@ -308,7 +308,7 @@ static const struct of_device_id ti_dra7_master_match[] = { 
static inline void ti_dra7_xbar_reserve(int offset, int len, unsigned long *p)

{

	for (; len > 0; len--)

		clear_bit(offset + (len - 1), p);

		set_bit(offset + (len - 1), p);

}



static int ti_dra7_xbar_probe(struct platform_device *pdev)