[PATCH v7 0/2] dmaengine: arm-dma350: handle shared channel IRQ wiring on sky1

[Jun Guo]

Hi all,

Gentle ping on this patch series.

I understand everyone is busy, but would appreciate any feedback or
review comments when you have a moment.

On 5/21/2026 3:29 PM, Jun Guo wrote:
> This series updates DMA-350 support for the SKY1 integration where all
> DMA
> channel interrupt outputs are wired to the same GIC SPI.
> 
> Patch 1 enables DMANSECCTRL.INTREN_ANYCHINTR in the driver so
> per-channel
> interrupt status is propagated even when channels share one parent IRQ
> line.
> 
> Patch 2 adds the SKY1 DMA-350 DT node and describes the channel
> interrupt
> sources using 8 channel entries, while all entries map to the same SPI.
> 
> Tested on CIX SKY1 with dmatest:
>    % echo 2000 > /sys/module/dmatest/parameters/timeout
>    % echo 1 > /sys/module/dmatest/parameters/iterations
>    % echo "" > /sys/module/dmatest/parameters/channel
>    % echo 1 > /sys/module/dmatest/parameters/run
> 
> Changes in v7:
> - Modify the commit log format for the driver patch.
> 
> Changes in v6:
> - Drop the dt-binding update and keep the existing 8-channel interrupt
>   schema.
> - Simplify driver change to a minimal fix:
>   enable DMANSECCTRL.INTREN_ANYCHINTR.
> - Update SKY1 DT node to describe 8 channel interrupt entries mapped
>   to one SPI.
> 
> Changes in v5:
> - Fix the formatting issue in the AI tag.
> - Remove the unnecessary "cix,sky1-dma-350".
> 
> Changes in v4:
> - Reword binding text to align with kernel style.
> - Revise the AI attribution to the standard format.
> - Remove redundant links from the commit log.
> 
> Changes in v3:
> - Rework binding compatible description to match generic-first model.
> - Keep interrupts schema support for both 1-IRQ and 8-IRQ topologies.
> - Drop SoC match-data dependency for IRQ mode selection.
> - Detect IRQ topology via platform_irq_count() in probe path.
> - Refactor IRQ handling into a shared channel handler.
> - Enable DMANSECCTRL.INTREN_ANYCHINTR only in combined IRQ mode.
> 
> Changes in v2:
> - Update to kernel standards, enhance patch description, and refactor
>   driver to use match data for hardware differentiation instead of
>   compatible strings.
> 
> Jun Guo (2):
>    dmaengine: arm-dma350: enable ANYCH interrupt for shared IRQ wiring
>    arm64: dts: cix: add sky1 DMA-350 node with channel IRQ entries
> 
>   arch/arm64/boot/dts/cix/sky1.dtsi | 14 ++++++++++++++
>   drivers/dma/arm-dma350.c          |  9 +++++++++
>   2 files changed, 23 insertions(+)
>