From: Peter Ujfalusi Date: Tue, 12 May 2020 13:45:44 +0000 (+0300) Subject: dmaengine: ti: k3-udma: Add missing dma_sync call for rx flush descriptor X-Git-Tag: v5.10.7~2375^2~3 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5bbeea34bc7ab579516486fc387da8bde94b09a4;p=platform%2Fkernel%2Flinux-rpi.git 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: Peter Ujfalusi Link: https://lore.kernel.org/r/20200512134544.5839-1-peter.ujfalusi@ti.com Signed-off-by: Vinod Koul --- diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c index 80d64f71..58af578 100644 --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -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) +