Commit 5bbeea34 authored by Peter Ujfalusi's avatar Peter Ujfalusi Committed by Vinod Koul
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dmaengine: ti: k3-udma: Add missing dma_sync call for rx flush descriptor 



The TR mode rx flush descriptor did not had a dma_sync_single_for_device()
call to make sure that the DMA see the correct information.

Signed-off-by: default avatarPeter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200512134544.5839-1-peter.ujfalusi@ti.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent d9fd428a

drivers/dma/ti/k3-udma.c

+3 −0
Original line number Diff line number Diff line
@@ -3463,6 +3463,9 @@ static int udma_setup_rx_flush(struct udma_dev *ud) 
	tr_req->icnt0 = rx_flush->buffer_size;

	tr_req->icnt1 = 1;



	dma_sync_single_for_device(dev, hwdesc->cppi5_desc_paddr,

				   hwdesc->cppi5_desc_size, DMA_TO_DEVICE);



	/* Set up descriptor to be used for packet mode */

	hwdesc = &rx_flush->hwdescs[1];

	hwdesc->cppi5_desc_size = ALIGN(sizeof(struct cppi5_host_desc_t) +