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Message-Id: <20250216214741.207538-1-mattwmajewski@gmail.com> Date: Sun, 16 Feb 2025 16:47:41 -0500 From: Matthew Majewski <mattwmajewski@...il.com> To: Peter Ujfalusi <peter.ujfalusi@...il.com>, Vinod Koul <vkoul@...nel.org> Cc: dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org, Matthew Majewski <mattwmajewski@...il.com> Subject: [PATCH] dmaengine: ti: edma: support sw triggered chans in of_edma_xlate() The .of_edma_xlate() function always sets the hw_triggered flag to true. This causes sw triggered channels consumed via the device-tree to not function properly, as the driver incorrectly assumes they are hw triggered. Modify the xlate() function to correctly set the hw_triggered flag to false for channels reserved for memcpy operation (ie, sw triggered). Signed-off-by: Matthew Majewski <mattwmajewski@...il.com> --- drivers/dma/ti/edma.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/dma/ti/edma.c b/drivers/dma/ti/edma.c index 4ece125b2ae7..0554a18d84ba 100644 --- a/drivers/dma/ti/edma.c +++ b/drivers/dma/ti/edma.c @@ -2258,8 +2258,12 @@ static struct dma_chan *of_edma_xlate(struct of_phandle_args *dma_spec, return NULL; out: - /* The channel is going to be used as HW synchronized */ - echan->hw_triggered = true; + /* + * The channel is going to be HW synchronized, unless it was + * reserved as a memcpy channel + */ + echan->hw_triggered = + !edma_is_memcpy_channel(i, ecc->info->memcpy_channels); return dma_get_slave_channel(chan); } #else -- 2.25.1
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