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[2003:e4:1f0f:fa00:f22f:74ff:fe1f:3a53]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4801e886834sm42518255e9.7.2026.01.16.04.44.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Jan 2026 04:44:04 -0800 (PST) Date: Fri, 16 Jan 2026 13:44:02 +0100 From: Thierry Reding To: Ashish Mhetre Cc: will@kernel.org, robin.murphy@arm.com, joro@8bytes.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, nicolinc@nvidia.com, jonathanh@nvidia.com, vdumpa@nvidia.com, jgg@ziepe.ca, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: Re: [PATCH V8 3/4] dt-bindings: iommu: Add NVIDIA Tegra CMDQV support Message-ID: References: <20260113054935.1945785-1-amhetre@nvidia.com> <20260113054935.1945785-4-amhetre@nvidia.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="uf7gopu5xawojzkn" Content-Disposition: inline In-Reply-To: <20260113054935.1945785-4-amhetre@nvidia.com> --uf7gopu5xawojzkn Content-Type: text/plain; protected-headers=v1; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [PATCH V8 3/4] dt-bindings: iommu: Add NVIDIA Tegra CMDQV support MIME-Version: 1.0 On Tue, Jan 13, 2026 at 05:49:34AM +0000, Ashish Mhetre wrote: > The Command Queue Virtualization (CMDQV) hardware is part of the > SMMUv3 implementation on NVIDIA Tegra SoCs. It assists in > virtualizing the command queue for the SMMU. >=20 > Add a new device tree binding document for nvidia,tegra264-cmdqv. >=20 > Also update the arm,smmu-v3 binding to include an optional nvidia,cmdqv > property. This property is a phandle to the CMDQV device node, allowing > the SMMU driver to associate with its corresponding CMDQV instance. > Restrict this property usage to Nvidia Tegra264 only. >=20 > Reviewed-by: Rob Herring (Arm) > Acked-by: Nicolin Chen > Signed-off-by: Ashish Mhetre > --- > .../bindings/iommu/arm,smmu-v3.yaml | 27 +++++++++++- > .../bindings/iommu/nvidia,tegra264-cmdqv.yaml | 42 +++++++++++++++++++ > 2 files changed, 68 insertions(+), 1 deletion(-) > create mode 100644 Documentation/devicetree/bindings/iommu/nvidia,tegra2= 64-cmdqv.yaml Applied, thanks. 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