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| author | Yuanshen Cao <alex.caoys@gmail.com> | 2026-08-26 02:40:29 +0000 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2026-10-05 15:32:15 +0200 |
| commit | 9ab1198158a5e6b1d24677970cdd30aba2d39d37 (patch) | |
| tree | fcb9c5572be451ac5af34a538d60682280616702 /tools/lib/python/kdoc/python_version.py | |
| parent | 4ec2d7bbbf2c79a63469b4a027cd522abdbfb2f9 (diff) | |
dmaengine: sun6i-dma: Add num_channels_per_reg for flexible interrupt mapping
The `sun6i-dma` driver previously assumed a fixed number of channels
per interrupt register. For example, `sun6i_kill_tasklet` was hardcoded
to disable interrupts only for registers 0 and 1. `DMA_MAX_CHANNELS` was
also not in used previously, and the old SoCs never has more than 16
channels.
The A733 has a different interrupt structure where the number of
channels per register may differ. Add `num_channels_per_reg` to `struct
sun6i_dma_config` to make the interrupt handling logic handware-agnostic
Update `sun6i_dma_interrupt`, `sun6i_dma_start_desc`, and
`sun6i_kill_tasklet` to use this value.
Additionally, set `DMA_MAX_CHANNELS` to 16 to ensure loops over
interrupts are correctly bounded, aligning with the hardware
specifications.
Signed-off-by: Yuanshen Cao <alex.caoys@gmail.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260826-sun60i-a733-dma-v5-3-abc5229b441e@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'tools/lib/python/kdoc/python_version.py')
0 files changed, 0 insertions, 0 deletions