From: Krzysztof Kozlowski <krzk@kernel.org>
To: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
Loic Poulain <loic.poulain@oss.qualcomm.com>
Cc: Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Kees Cook <kees@kernel.org>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
Bryan O'Donoghue <bod@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org,
devicetree@vger.kernel.org, laurent.pinchart@ideasonboard.com,
kieran.bingham@ideasonboard.com
Subject: Re: [PATCH v2 11/14] dt-bindings: media: qcom,qcm2290-camss: Add OPE ISP subnode
Date: Tue, 28 Apr 2026 11:54:03 +0200 [thread overview]
Message-ID: <6483f15d-5dc4-4516-b423-33d73166b9f5@kernel.org> (raw)
In-Reply-To: <e752f72c-d0c7-406b-b9ea-4ef4e6911e72@oss.qualcomm.com>
On 28/04/2026 11:50, Konrad Dybcio wrote:
>>> diff --git a/Documentation/devicetree/bindings/media/qcom,qcm2290-camss.yaml b/Documentation/devicetree/bindings/media/qcom,qcm2290-camss.yaml
>>> index 391d0f6f67ef5fdfea31dd3683477561516b1556..d8b356028e24c3c5b2e9b7f20e220db7d491ad68 100644
>>> --- a/Documentation/devicetree/bindings/media/qcom,qcm2290-camss.yaml
>>> +++ b/Documentation/devicetree/bindings/media/qcom,qcm2290-camss.yaml
>>> @@ -52,6 +52,14 @@ properties:
>>> - const: vfe1
>>> - const: vfe1_cphy_rx
>>>
>>> + '#address-cells':
>>
>> Please use consistent quotes, either ' or "
>>
>>> + const: 2
>>
>> This means the child will use 64-bit addressing, but does it need that?
>> Or do you need that to have 36-bit DMA addressing? If there are true no
>> needs for above, usually recommendation is to use narrowe address space
>> for children, so only 32-bit.
>
> I can't find data for this platform, but on e.g. Hamoa, most camera
> components can address 36b
If this is a conscious choice, should be mentioned in commit msg or as
comment in the code with such explanation.
Best regards,
Krzysztof
next prev parent reply other threads:[~2026-04-28 9:54 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-27 12:43 [PATCH v2 00/14] media: qcom: camss: CAMSS Offline Processing Engine support Loic Poulain
2026-04-27 12:43 ` [PATCH v2 01/14] media: qcom: camss: Add support to populate sub-devices Loic Poulain
2026-04-28 6:43 ` Krzysztof Kozlowski
2026-04-28 11:41 ` Loic Poulain
2026-04-27 12:43 ` [PATCH v2 02/14] media: qcom: camss: Add PM clock support and integrate with runtime PM Loic Poulain
2026-04-27 14:04 ` Konrad Dybcio
2026-04-27 12:43 ` [PATCH v2 03/14] media: qcom: camss: Add PM clock definitions for QCM2290 Loic Poulain
2026-04-27 12:43 ` [PATCH v2 04/14] media: qcom: camss: Drop top_ahb/axi from QCM2290 subdevice clocks Loic Poulain
2026-04-27 12:43 ` [PATCH v2 05/14] media: qcom: camss: Add camss-isp-bufq helper Loic Poulain
2026-04-28 6:46 ` Krzysztof Kozlowski
2026-04-28 6:56 ` Bryan O'Donoghue
2026-04-28 11:29 ` Loic Poulain
2026-04-27 12:43 ` [PATCH v2 06/14] media: qcom: camss: Add camss-isp-sched helper Loic Poulain
2026-04-27 12:43 ` [PATCH v2 07/14] media: qcom: camss: Add camss-isp-pipeline helper Loic Poulain
2026-04-27 12:43 ` [PATCH v2 08/14] media: qcom-camss: Add image formats for Qualcomm CAMSS parameters buffer Loic Poulain
2026-04-27 12:43 ` [PATCH v2 09/14] media: qcom: camss: Add camss-isp-params helper Loic Poulain
2026-04-27 12:43 ` [PATCH v2 10/14] dt-bindings: media: qcom: Add CAMSS Offline Processing Engine (OPE) Loic Poulain
2026-04-27 14:22 ` Konrad Dybcio
2026-04-27 20:33 ` Loic Poulain
2026-04-28 10:15 ` Konrad Dybcio
2026-04-28 6:31 ` Krzysztof Kozlowski
2026-04-27 12:43 ` [PATCH v2 11/14] dt-bindings: media: qcom,qcm2290-camss: Add OPE ISP subnode Loic Poulain
2026-04-28 6:35 ` Krzysztof Kozlowski
2026-04-28 9:50 ` Konrad Dybcio
2026-04-28 9:54 ` Krzysztof Kozlowski [this message]
2026-04-27 12:43 ` [PATCH v2 12/14] media: uapi: Add CAMSS ISP configuration definition Loic Poulain
2026-04-27 12:56 ` Konrad Dybcio
2026-04-27 20:08 ` Loic Poulain
2026-04-27 20:25 ` Laurent Pinchart
2026-04-27 21:01 ` Loic Poulain
2026-04-27 21:57 ` Bryan O'Donoghue
2026-04-27 12:43 ` [PATCH v2 13/14] media: qcom: camss: Add CAMSS Offline Processing Engine driver Loic Poulain
2026-04-27 12:43 ` [PATCH v2 14/14] arm64: dts: qcom: agatti: Add OPE node Loic Poulain
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