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Since there are multi edmav3 instances on i.mx8, every edma channel name
is better unique.But so far, all edma channel name is 'edma-channel(id)-
tx',thus some edma channels which share the same channel id but different
edma instance will show the same channel name in kernel and this is not
friendly to debug in kernel.
Now the edma channel name(interrupt-names property) is define in dts
as below:
"edmaX-chanX-Xx"
| | |---> receive/transmit, r or t
| |---> channel id, the max number is 32
|---> edma controller instance, 0, 1, 2,..etc
and get below correct name with 'cat /proc/interrupts':
43: 0 0 0 0 GICv3 466 Level edma0-chan8-rx
44: 0 0 0 0 GICv3 467 Level edma0-chan9-tx
45: 79 0 0 0 GICv3 468 Level edma0-chan10-rx
46: 311 0 0 0 GICv3 469 Level edma0-chan11-tx
47: 0 0 0 0 GICv3 470 Level edma0-chan12-rx
48: 0 0 0 0 GICv3 471 Level edma0-chan13-tx
49: 0 0 0 0 GICv3 472 Level edma0-chan14-rx
50: 0 0 0 0 GICv3 473 Level edma0-chan15-tx
51: 0 0 0 0 GICv3 406 Level edma2-chan0-tx
52: 0 0 0 0 GICv3 407 Level edma2-chan1-tx
53: 0 0 0 0 GICv3 408 Level edma2-chan2-tx
54: 0 0 0 0 GICv3 409 Level edma2-chan3-tx
55: 0 0 0 0 GICv3 410 Level edma2-chan4-tx
56: 0 0 0 0 GICv3 411 Level edma2-chan5-tx
57: 0 0 0 0 GICv3 442 Level edma2-chan6-rx, edma2-chan7-tx
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Reviewed-by: Shengjiu Wang <shengjiu.wang@nxp.com>
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There is Audio dual fifo cause that fill fifo one by one and
loop back after every minor loop:
-- fill the first 32bit width fifo
-- fill the next 32bit width fifo
-- +MLOFF signed offset after the above two FIFOs filled
-- loop back to the first step to handle the next minor loop.
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
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For dual fifo case, fsl-edma-v3 need add another cell. It's not friendly
for user and it's possible other cells maybe added to other use cases,
so combine two cells into one now, and for some special use cases such as
dual fifo property can directly be passed by one bit of cell3 rather than
another cell.
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
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update fsl_edma_v3 document for #dma-cell is changed
one more cell is added, which is for local/remote access.
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
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Add edma-v3 driver on i.mx8qm.
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
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