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dmaengine: dw-edma: Fix unmasking STOP and ABORT interrupts for HDMA

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BugLink: https://bugs.launchpad.net/bugs/2084225

commit 383baf5c8f062091af34c63f28d37642a8f188ae upstream.

The current logic is enabling both STOP_INT_MASK and ABORT_INT_MASK
bit. This is apparently masking those particular interrupts rather than
unmasking the same. If the interrupts are masked, they would never get
triggered.

So fix the issue by unmasking the STOP and ABORT interrupts properly.

Fixes: e74c39573d ("dmaengine: dw-edma: Add support for native HDMA")
cc: stable@vger.kernel.org
Signed-off-by: Mrinmay Sarkar <quic_msarkar@quicinc.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/1724674261-3144-2-git-send-email-quic_msarkar@quicinc.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
This commit is contained in:
Mrinmay Sarkar
2024-08-26 17:41:00 +05:30
committed by Mehmet Basaran
parent a3be6202e9
commit 61b21c3d23
1 changed files with 5 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/dma/dw-edma/dw-hdma-v0-core.c
+5 -4
View File
@@ -247,10 +247,11 @@ static void dw_hdma_v0_core_start(struct dw_edma_chunk *chunk, bool first)
if (first) {
/* Enable engine */
SET_CH_32(dw, chan->dir, chan->id, ch_en, BIT(0));
/* Interrupt enable&unmask - done, abort */
tmp = GET_CH_32(dw, chan->dir, chan->id, int_setup) |
HDMA_V0_STOP_INT_MASK | HDMA_V0_ABORT_INT_MASK |
HDMA_V0_LOCAL_STOP_INT_EN | HDMA_V0_LOCAL_ABORT_INT_EN;
/* Interrupt unmask - stop, abort */
tmp = GET_CH_32(dw, chan->dir, chan->id, int_setup);
tmp &= ~(HDMA_V0_STOP_INT_MASK | HDMA_V0_ABORT_INT_MASK);
/* Interrupt enable - stop, abort */
tmp |= HDMA_V0_LOCAL_STOP_INT_EN | HDMA_V0_LOCAL_ABORT_INT_EN;
if (!(dw->chip->flags & DW_EDMA_CHIP_LOCAL))
tmp |= HDMA_V0_REMOTE_STOP_INT_EN | HDMA_V0_REMOTE_ABORT_INT_EN;
SET_CH_32(dw, chan->dir, chan->id, int_setup, tmp);