linux-kernel - Re: [PATCH] i2c: qcom-geni: make sure I2C hub controllers can't use SE DMA

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Message-ID: <aWd_RtYqGyUkjQao@ninjato>
Date: Wed, 14 Jan 2026 12:34:30 +0100
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
To: Neil Armstrong <neil.armstrong@...aro.org>
Cc: Mukesh Kumar Savaliya <mukesh.savaliya@....qualcomm.com>,
	Viken Dadhaniya <viken.dadhaniya@....qualcomm.com>,
	Andi Shyti <andi.shyti@...nel.org>,
	Sumit Semwal <sumit.semwal@...aro.org>,
	Christian König <christian.koenig@....com>,
	Wolfram Sang <wsa@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	linux-arm-msm@...r.kernel.org, linux-i2c@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
	dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org
Subject: Re: [PATCH] i2c: qcom-geni: make sure I2C hub controllers can't use
 SE DMA

On Wed, Oct 29, 2025 at 07:07:42PM +0100, Neil Armstrong wrote:
> The I2C Hub controller is a simpler GENI I2C variant that doesn't
> support DMA at all, add a no_dma flag to make sure it nevers selects
> the SE DMA mode with mappable 32bytes long transfers.
> 
> Fixes: cacd9643eca7 ("i2c: qcom-geni: add support for I2C Master Hub variant")
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> Reviewed-by: Mukesh Kumar Savaliya <mukesh.savaliya@....qualcomm.com>>

Applied to for-current, thanks!


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