DMA Engine development
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From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Mukesh Kumar Savaliya <mukesh.savaliya@oss.qualcomm.com>,
	viken.dadhaniya@oss.qualcomm.com, andi.shyti@kernel.org,
	robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
	vkoul@kernel.org, Frank.Li@kernel.org, andersson@kernel.org,
	konradybcio@kernel.org, dmitry.baryshkov@oss.qualcomm.com,
	linmq006@gmail.com, quic_jseerapu@quicinc.com, agross@kernel.org,
	linux-arm-msm@vger.kernel.org, linux-i2c@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	dmaengine@vger.kernel.org
Cc: krzysztof.kozlowski@oss.qualcomm.com,
	bartosz.golaszewski@oss.qualcomm.com,
	bjorn.andersson@oss.qualcomm.com
Subject: Re: [PATCH v6 3/4] soc: qcom: geni-se: Keep pinctrl active for multi-owner controllers
Date: Wed, 1 Apr 2026 12:19:19 +0200	[thread overview]
Message-ID: <ce5eb817-ce13-49c3-81f8-8e28c40632a1@oss.qualcomm.com> (raw)
In-Reply-To: <20260331114742.2896317-4-mukesh.savaliya@oss.qualcomm.com>

On 3/31/26 1:47 PM, Mukesh Kumar Savaliya wrote:
> On platforms where a GENI Serial Engine is shared with another system
> processor, selecting the "sleep" pinctrl state can disrupt ongoing
> transfers initiated by the other processor.
> 
> Teach geni_se_resources_off() to skip selecting the pinctrl sleep state
> when the Serial Engine is marked as shared, while still allowing the
> rest of the resource shutdown sequence to proceed.
> 
> This is required for multi-owner configurations (described via DeviceTree
> with qcom,qup-multi-owner on the protocol controller node).
> 
> Signed-off-by: Mukesh Kumar Savaliya <mukesh.savaliya@oss.qualcomm.com>
> ---

[...]

> + * @multi_owner:	True if SE is shared between multiprocessors.

'between multiple owners'?

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad

  reply	other threads:[~2026-04-01 10:19 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-31 11:47 [PATCH v6 0/4] Enable multi-owner I2C support for QCOM GENI controllers Mukesh Kumar Savaliya
2026-03-31 11:47 ` [PATCH v6 1/4] dt-bindings: i2c: qcom,i2c-geni: Document multi-owner controller support Mukesh Kumar Savaliya
2026-04-08 14:39   ` Rob Herring (Arm)
2026-03-31 11:47 ` [PATCH v6 2/4] dmaengine: qcom: gpi: Add lock/unlock TREs for multi-owner I2C transfers Mukesh Kumar Savaliya
2026-03-31 11:47 ` [PATCH v6 3/4] soc: qcom: geni-se: Keep pinctrl active for multi-owner controllers Mukesh Kumar Savaliya
2026-04-01 10:19   ` Konrad Dybcio [this message]
2026-04-23  6:38     ` Mukesh Savaliya
2026-03-31 11:47 ` [PATCH v6 4/4] i2c: qcom-geni: Support multi-owner controllers in GPI mode Mukesh Kumar Savaliya
2026-04-01 10:21   ` Konrad Dybcio
2026-04-23  6:38     ` Mukesh Savaliya

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