From: sashiko-bot@kernel.org
To: Frank.Li@oss.nxp.com
Cc: Frank.Li@kernel.org, linux-serial@vger.kernel.org, imx@lists.linux.dev
Subject: Re: [PATCH v2 1/2] serial: use dmaengine_get_dma_device() instead of chan->device->dev
Date: Mon, 28 Sep 2026 18:41:42 +0000 [thread overview]
Message-ID: <20260928184143.1B2811F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260928183252.1965169-1-Frank.Li@oss.nxp.com>
> From: Frank Li <Frank.Li@nxp.com>
>
> Replace direct dma_chan::device::dev access with the proper
> dmaengine_get_dma_device() for consumer API
>
> chan->device->dev is not always the device used for DMA mapping.
> Some DMA engines support per-channel IOMMU mappings, so different
> channels may use different DMA devices. dmaengine_get_dma_device()
> returns the correct device for each channel.
>
> This also prepares for making the DMA engine provider data structures
> private. DMA consumers should not access DMA engine internals directly.
>
> Assisted-by: LLM
> Signed-off-by: Frank Li <Frank.Li@nxp.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260928183252.1965169-1-Frank.Li@oss.nxp.com?part=1
prev parent reply other threads:[~2026-09-28 18:41 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-28 18:32 [PATCH v2 1/2] serial: use dmaengine_get_dma_device() instead of chan->device->dev Frank.Li
2026-09-28 18:32 ` [PATCH v2 2/2] serial: amba-pl011: use dmaengine public API instead of raw ops Frank.Li
2026-09-28 18:39 ` sashiko-bot
2026-09-28 18:41 ` sashiko-bot [this message]
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