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Message-Id: <20200605140153.064092219@linuxfoundation.org>
Date: Fri, 5 Jun 2020 16:14:40 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Peter Ujfalusi <peter.ujfalusi@...com>,
Vinod Koul <vkoul@...nel.org>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.6 10/43] dmaengine: ti: k3-udma: Fix TR mode flags for slave_sg and memcpy
From: Peter Ujfalusi <peter.ujfalusi@...com>
[ 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@...com>
Link: https://lore.kernel.org/r/20200512134531.5742-1-peter.ujfalusi@ti.com
Signed-off-by: Vinod Koul <vkoul@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/dma/ti/k3-udma.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index 0536866a58ce..4bfbca2add1b 100644
--- 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;
--
2.25.1
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