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[2003:e4:1f29:1e00:f22f:74ff:fe1f:3a53]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-45d9e767cb9sm51264332f8f.2.2026.05.20.04.46.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 May 2026 04:46:03 -0700 (PDT) Date: Wed, 20 May 2026 13:46:01 +0200 From: Thierry Reding To: webgeek1234@gmail.com Cc: Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thierry Reding , Jonathan Hunter , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/3] spi: dt-bindings: tegra: Support dma-coherent property for QSPI Message-ID: References: <20260515-tegra194-qspi-iommu-v1-0-57dfb63cd3d6@gmail.com> <20260515-tegra194-qspi-iommu-v1-2-57dfb63cd3d6@gmail.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="keamvcfaghevywl2" Content-Disposition: inline In-Reply-To: <20260515-tegra194-qspi-iommu-v1-2-57dfb63cd3d6@gmail.com> --keamvcfaghevywl2 Content-Type: text/plain; protected-headers=v1; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [PATCH 2/3] spi: dt-bindings: tegra: Support dma-coherent property for QSPI MIME-Version: 1.0 On Fri, May 15, 2026 at 03:35:28PM -0500, Aaron Kling via B4 Relay wrote: > From: Aaron Kling >=20 > DMA coherency is supported by at least the Tegra194 and Tegra234 > controllers. >=20 > Signed-off-by: Aaron Kling > --- > Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml | 2 ++ > 1 file changed, 2 insertions(+) Similarly, DMA coherency does not apply on Tegra194 because the device itself does not perform DMA. dma-coherent should go on the DMA controller's DT node, which it already is. 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