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dmaengine: sun6i: Add debug messages for cyclic DMA prepare

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The driver already has debug messages for memcpy and linear transfers,
but is missing them for cyclic transfers.

Cyclic transfers are one of the main uses of the DMA controller, used
for audio data transfers. And since these are likely the first DMA
peripherals to be enabled, it helps to have these debug messages.

Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
Link: https://patch.msgid.link/20251221064754.1783369-1-wens@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Chen-Yu Tsai 2025-12-21 14:47:52 +08:00 • committed by Vinod Koul
parent 7178c3586a
commit 7105e968d1
1 changed files with 10 additions and 0 deletions
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10
drivers/dma/sun6i-dma.c
View file

@ -840,6 +840,11 @@ static struct dma_async_tx_descriptor *sun6i_dma_prep_dma_cyclic(
v_lli->cfg = lli_cfg;
sdev->cfg->set_drq(&v_lli->cfg, DRQ_SDRAM, vchan->port);
sdev->cfg->set_mode(&v_lli->cfg, LINEAR_MODE, IO_MODE);
dev_dbg(chan2dev(chan),
"%s; chan: %d, dest: %pad, src: %pad, len: %zu. flags: 0x%08lx\n",
__func__, vchan->vc.chan.chan_id,
&sconfig->dst_addr, &buf_addr,
buf_len, flags);
} else {
sun6i_dma_set_addr(sdev, v_lli,
sconfig->src_addr,
@ -847,6 +852,11 @@ static struct dma_async_tx_descriptor *sun6i_dma_prep_dma_cyclic(
v_lli->cfg = lli_cfg;
sdev->cfg->set_drq(&v_lli->cfg, vchan->port, DRQ_SDRAM);
sdev->cfg->set_mode(&v_lli->cfg, IO_MODE, LINEAR_MODE);
dev_dbg(chan2dev(chan),
"%s; chan: %d, dest: %pad, src: %pad, len: %zu. flags: 0x%08lx\n",
__func__, vchan->vc.chan.chan_id,
&buf_addr, &sconfig->src_addr,
buf_len, flags);
}
prev = sun6i_dma_lli_add(prev, v_lli, p_lli, txd);