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| author | Robin Gong <[email protected]> | 2025-10-24 05:53:20 +0000 |
|---|---|---|
| committer | Mark Brown <[email protected]> | 2025-11-06 13:13:57 +0000 |
| commit | 86d57d9c07d54e8cb385ffe800930816ccdba0c1 (patch) | |
| tree | a5dc04af3235739411ae33707eb6924dee61e9d2 /drivers/spi/spi-xilinx.c | |
| parent | spi: Try to get ACPI GPIO IRQ earlier (diff) | |
| download | kernel-86d57d9c07d54e8cb385ffe800930816ccdba0c1.tar.gz kernel-86d57d9c07d54e8cb385ffe800930816ccdba0c1.zip | |
spi: imx: keep dma request disabled before dma transfer setup
Since sdma hardware configure postpone to transfer phase, have to disable
dma request before dma transfer setup because there is a hardware
limitation on sdma event enable(ENBLn) as below:
"It is thus essential for the Arm platform to program them before any DMA
request is triggered to the SDMA, otherwise an unpredictable combination
of channels may be started."
Signed-off-by: Carlos Song <[email protected]>
Signed-off-by: Robin Gong <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>
Diffstat (limited to 'drivers/spi/spi-xilinx.c')
0 files changed, 0 insertions, 0 deletions