dmaengine: ti: k3-udma: Fix TR mode flags for slave_sg and memcpy

[ Upstream commit be4054b8b6671ebc977eb7774b8e889d2d05d3e3 ]

cppi5_tr_csf_set() clears previously set Configuration Specific Flags.
Setting the EOP flag clears the SUPR_EVT flag for the last TR which is not
desirable as we do not want to have events from the TR.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200512134531.5742-1-peter.ujfalusi@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index 0536866a58cee788374f63cad40259b122541474..4bfbca2add1b98cf20e29366893ad1080dafa318 100644 (file)
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -2148,7 +2148,8 @@ udma_prep_slave_sg_tr(struct udma_chan *uc, struct scatterlist *sgl,
                d->residue += sg_dma_len(sgent);
        }
 
-       cppi5_tr_csf_set(&tr_req[tr_idx - 1].flags, CPPI5_TR_CSF_EOP);
+       cppi5_tr_csf_set(&tr_req[tr_idx - 1].flags,
+                        CPPI5_TR_CSF_SUPR_EVT | CPPI5_TR_CSF_EOP);
 
        return d;
 }
@@ -2725,7 +2726,8 @@ udma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src,
                tr_req[1].dicnt3 = 1;
        }
 
-       cppi5_tr_csf_set(&tr_req[num_tr - 1].flags, CPPI5_TR_CSF_EOP);
+       cppi5_tr_csf_set(&tr_req[num_tr - 1].flags,
+                        CPPI5_TR_CSF_SUPR_EVT | CPPI5_TR_CSF_EOP);
 
        if (uc->config.metadata_size)
                d->vd.tx.metadata_ops = &metadata_ops;