From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 65E5145039; Mon, 22 Jun 2026 09:24:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782120244; cv=none; b=SBYnoPs31e1vmaUR/Nr7/XLoDKFAbc+A0vcTOc6kHyrT/T6Esl/KJvvzMkMy5Fqa6FUda1Eb93IFsm0gSEsQ3OMNqPRq/m0jn9JmSoq58xMEykFItzTqtjfsIKv0pY7T+ig6wOiEh/T2ZxtN5fqf9UNxkOQs7t6dJ/GjmEkWezk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782120244; c=relaxed/simple; bh=e8Eez2d4k9iKPcMtCxy7NGo3LwuoV95as5NTkbefKWo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=r1V81xRIzFLxD6XgPCoY40PgPx3MvU2M6CfY9ZSzbmCyXvdJZ2LUKoedgQ4vjDAI/f5PQ/inhwDkgibbr0+M/k1A92ZnYzhU0ebnTPXT70WLPJtqxNS6+IH491Y/uvrrMlafYZ9uMceJaf98uAjrm1Nbz0XNsEXJuoHBPYFuAcA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Iw8ahWw+; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Iw8ahWw+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6E6B11F000E9; Mon, 22 Jun 2026 09:24:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782120243; bh=TcUGyzUPG1kKuKCAlhVTHKvbWYWbVYTlmzRbIMKLZCw=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=Iw8ahWw+qYBEIdt+wBA19m1n1LxbQsZGG4DJwLhWSvyMQYeadUZ0NuElb/ijYNiTs dnJuPDOdSMR3Umh+Oo/eOHkCn19e5kXCWBgp5yPGk7pM382oeBXNuAYDEw4A5elyo5 gNxc3vhJbli9yaLaQSpL98I38t4R701ZH9AqsaIK56IDiPlEek/3sjnp+V6oihTwfT 8ZI5RWBCtD9LxH+Bp84u4qZLfsvfvlpZlMSMan1CNhUsRofHo5oSGLRsl6nhX0xaQ/ WD2kzahc8ntCWFEJkDvjTv7n5usaZ6iYisY4KRJoS8gNjbINt5bt0kNIXlfgSQ/10k ErStu+ZgzVDIw== Date: Mon, 22 Jun 2026 11:24:00 +0200 From: Krzysztof Kozlowski To: Vikash Garodia Cc: Bryan O'Donoghue , Dikshita Agarwal , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jorge Ramirez-Ortiz , Bjorn Andersson , Konrad Dybcio , linux-arm-msm@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 1/3] dt-bindings: media: qcom,qcm2290-venus: document shikra Iris compatible Message-ID: <20260622-transparent-tricky-kelpie-e9c3ec@quoll> References: <20260618-shikra_vpu-v3-0-1a32e26a35a1@oss.qualcomm.com> <20260618-shikra_vpu-v3-1-1a32e26a35a1@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: <20260618-shikra_vpu-v3-1-1a32e26a35a1@oss.qualcomm.com> On Thu, Jun 18, 2026 at 04:09:54PM +0530, Vikash Garodia wrote: > Document the iris video accelerator used on shikra platforms by adding > the qcom,shikra-iris compatible. >=20 > Although QCM2290 and shikra share the same video hardware and overall > integration, their SMMU programming differs. QCM2290 exposes separate > stream IDs for the video hardware and the Xtensa path, requiring two > explicit IOMMU entries, whereas shikra uses a masked SMR to collapse > equivalent stream IDs into a single mapping. Due to QCM2290=E2=80=99s SID= layout > and Xtensa isolation requirements, such SMR masking is not applicable on > QCM2290 platforms. > Since shikra uses the same video hardware as QCM2290 and shares the same > programming model and capabilities, it is added as a fallback compatible > to qcom,qcm2290-venus, with conditional handling to allow either one or > two IOMMU entries. >=20 > Signed-off-by: Vikash Garodia > --- > .../bindings/media/qcom,qcm2290-venus.yaml | 26 ++++++++++++++++= ------ > 1 file changed, 19 insertions(+), 7 deletions(-) Reviewed-by: Krzysztof Kozlowski Best regards, Krzysztof