From: Dikshita Agarwal <quic_dikshita@quicinc.com>
To: Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
Jorge Ramirez-Ortiz <jorge.ramirez@oss.qualcomm.com>,
<quic_vgarodia@quicinc.com>, <krzk+dt@kernel.org>,
<konradybcio@kernel.org>, <mchehab@kernel.org>, <robh@kernel.org>,
<conor+dt@kernel.org>, <andersson@kernel.org>,
<amit.kucheria@oss.qualcomm.com>
Cc: <linux-media@vger.kernel.org>, <linux-arm-msm@vger.kernel.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v6 6/7] arm64: dts: qcom: qcm2290: Add Venus video node
Date: Thu, 10 Jul 2025 15:56:57 +0530 [thread overview]
Message-ID: <6985874e-efae-746d-efbd-dc537b5f24c0@quicinc.com> (raw)
In-Reply-To: <c3803de2-56f3-4346-9490-67cd63abb287@linaro.org>
On 7/10/2025 2:45 PM, Bryan O'Donoghue wrote:
> On 10/07/2025 09:57, Dikshita Agarwal wrote:
>>> + iommus = <&apps_smmu 0x860 0x0>,
>>> + <&apps_smmu 0x880 0x0>,
>>> + <&apps_smmu 0x861 0x04>,
>>> + <&apps_smmu 0x863 0x0>,
>>> + <&apps_smmu 0x804 0xe0>;
>> What’s the rationale behind having five entries here?
>> could you share the use-cases that justify this configuration?
>
> Already getting in trouble with non-pixel/secure # of iommus.
>
> Why not specify the maximum expected number hardware supports, specifically
> so we don't end up buried under incomplete schema again ?
Adding this in DT schema is fine, concern here is, adding it to the DT
without a present use-case may be premature. Surprising to see it doesn't
create any boot-up issues.
Thanks,
Dikshita
>
> ---
> bod
next prev parent reply other threads:[~2025-07-10 10:27 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-08 18:05 [PATCH v6 0/7] media: venus: Add QCM2290 support with AR50_LITE core Jorge Ramirez-Ortiz
2025-07-08 18:05 ` [PATCH v6 1/7] media: dt-bindings: venus: Add qcm2290 dt schema Jorge Ramirez-Ortiz
2025-07-14 23:02 ` Dmitry Baryshkov
2025-07-08 18:05 ` [PATCH v6 2/7] media: venus: Conditionally register codec nodes based on firmware version Jorge Ramirez-Ortiz
2025-07-08 18:05 ` [PATCH v6 3/7] media: venus: Add support for AR50_LITE video core Jorge Ramirez-Ortiz
2025-07-10 10:05 ` Dikshita Agarwal
2025-07-11 10:55 ` Jorge Ramirez
2025-07-08 18:05 ` [PATCH v6 4/7] media: venus: hfi_plat_v4: Add capabilities for the 4XX lite core Jorge Ramirez-Ortiz
2025-07-10 9:21 ` Dikshita Agarwal
2025-07-11 9:46 ` Jorge Ramirez
2025-07-12 9:33 ` Jorge Ramirez
2025-07-08 18:05 ` [PATCH v6 5/7] media: venus: core: Add qcm2290 DT compatible and resource data Jorge Ramirez-Ortiz
2025-07-08 18:05 ` [PATCH v6 6/7] arm64: dts: qcom: qcm2290: Add Venus video node Jorge Ramirez-Ortiz
2025-07-10 8:57 ` Dikshita Agarwal
2025-07-10 9:15 ` Bryan O'Donoghue
2025-07-10 10:26 ` Dikshita Agarwal [this message]
2025-07-08 18:05 ` [PATCH v6 7/7] arm64: dts: qcom: qrb2210-rb1: Enable Venus Jorge Ramirez-Ortiz
2025-07-10 7:54 ` [PATCH v6 0/7] media: venus: Add QCM2290 support with AR50_LITE core Jorge Ramirez
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