From: Jelly Jia <Jelly.Jia@cixtech.com>
To: Frank Li <Frank.li@oss.nxp.com>
Cc: vkoul@kernel.org, robh@kernel.org, krzk+dt@kernel.org,
conor+dt@kernel.org, robin.murphy@arm.com, sboyd@kernel.org,
bmasney+clk@redhat.com, jbrunet+clk@baylibre.com,
devicetree@vger.kernel.org, Frank.Li@kernel.org,
cix-kernel-upstream@cixtech.com, dmaengine@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org,
joakim.zhang@cixtech.com
Subject: Re: [PATCH v1 4/5] dmaengine: arm-dma350: Honour dma-channel-mask
Date: Thu, 29 Oct 2026 13:18:34 +0800 [thread overview]
Message-ID: <auLXKpDj9xBTKC04@ubuntu> (raw)
In-Reply-To: <auInKn0Z7TUP8yl7@lizhi-Precision-Tower-5810>
Hi Frank,
On Wed, Oct 28, 2026 at 12:47:38PM -0400, Frank Li wrote:
> dma-channel-mask is u32 array. If nchan >= 32, you should check
> dma-channel-mask[1].
Thanks for reviewing. Yes, the common property is a u32 array.
For DMA-350, however, the TRM specifies:
"Number of DMA channels between 1 and 8 (NUM_CHANNELS)".
A single u32 therefore covers all supported channels, and patch 3/5
also restricts dma-channel-mask to maxItems: 1.
Best regards,
Jelly
next prev parent reply other threads:[~2026-10-29 5:18 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-23 9:30 [PATCH v1 0/5] soc: cix: Add the Sky1 AUDSS DMA-350 interrupt path Jelly Jia
2026-10-23 9:30 ` [PATCH v1 1/5] dt-bindings: soc: cix: Describe the Sky1 AUDSS DMA IRQ controller Jelly Jia
2026-10-26 8:12 ` Krzysztof Kozlowski
2026-10-29 5:25 ` Jelly Jia
2026-10-23 9:30 ` [PATCH v1 2/5] clk: cix: Handle Sky1 AUDSS DMA interrupt gates as an irqchip Jelly Jia
2026-10-23 9:53 ` sashiko-bot
2026-10-23 9:30 ` [PATCH v1 3/5] dt-bindings: dma: arm,dma-350: Document dma-channel-mask Jelly Jia
2026-10-26 8:13 ` Krzysztof Kozlowski
2026-10-23 9:30 ` [PATCH v1 4/5] dmaengine: arm-dma350: Honour dma-channel-mask Jelly Jia
2026-10-28 16:47 ` Frank Li
2026-10-29 5:18 ` Jelly Jia [this message]
2026-10-23 9:30 ` [PATCH v1 5/5] arm64: dts: cix: Add the Sky1 AUDSS DMA-350 integration Jelly Jia
2026-10-23 10:28 ` sashiko-bot
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