Re: [PATCH v7 1/2] dmaengine: arm-dma350: enable ANYCH interrupt for shared IRQ wiring

[Robin Murphy <robin.murphy@arm.com>]

On 21/05/2026 8:29 am, Jun Guo wrote:
> Enable DMANSECCTRL.INTREN_ANYCHINTR during probe so channel
> interrupts are propagated when integrators wire DMA-350 channels
> onto a shared IRQ line.

Reviewed-by: Robin Murphy <robin.murphy@arm.com>

> Signed-off-by: Jun Guo <jun.guo@cixtech.com>
> ---
>   drivers/dma/arm-dma350.c | 9 +++++++++
>   1 file changed, 9 insertions(+)
> 
> diff --git a/drivers/dma/arm-dma350.c b/drivers/dma/arm-dma350.c
> index 84220fa83029..09403aca8bb0 100644
> --- a/drivers/dma/arm-dma350.c
> +++ b/drivers/dma/arm-dma350.c
> @@ -13,6 +13,11 @@
>   #include "dmaengine.h"
>   #include "virt-dma.h"
>   
> +#define DMANSECCTRL		0x200
> +
> +#define NSEC_CTRL		0x0c
> +#define INTREN_ANYCHINTR_EN	BIT(0)
> +
>   #define DMAINFO			0x0f00
>   
>   #define DMA_BUILDCFG0		0xb0
> @@ -582,6 +587,10 @@ static int d350_probe(struct platform_device *pdev)
>   	dmac->dma.device_issue_pending = d350_issue_pending;
>   	INIT_LIST_HEAD(&dmac->dma.channels);
>   
> +	reg = readl_relaxed(base + DMANSECCTRL + NSEC_CTRL);
> +	writel_relaxed(reg | INTREN_ANYCHINTR_EN,
> +		       base + DMANSECCTRL + NSEC_CTRL);
> +
>   	/* Would be nice to have per-channel caps for this... */
>   	memset = true;
>   	for (int i = 0; i < nchan; i++) {