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[66.90.144.107]) by smtp.gmail.com with ESMTPSA id f2-20020a4ad802000000b0047f72b6988fsm2503291oov.45.2022.10.31.09.33.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 31 Oct 2022 09:33:14 -0700 (PDT) Received: (nullmailer pid 2978384 invoked by uid 1000); Mon, 31 Oct 2022 16:33:16 -0000 Date: Mon, 31 Oct 2022 11:33:16 -0500 From: Rob Herring To: Vidya Sagar Cc: krzysztof.kozlowski+dt@linaro.org, thierry.reding@gmail.com, jonathanh@nvidia.com, mperttunen@nvidia.com, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, kthota@nvidia.com, mmaddireddy@nvidia.com, sagar.tv@gmail.com Subject: Re: [PATCH V1 1/2] dt-bindings: PCI: tegra234: Add ECAM support Message-ID: <20221031163316.GA2968837-robh@kernel.org> References: <20221027051214.22003-1-vidyas@nvidia.com> <20221027051214.22003-2-vidyas@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221027051214.22003-2-vidyas@nvidia.com> X-Spam-Status: No, score=-1.4 required=5.0 tests=BAYES_00, FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 27, 2022 at 10:42:13AM +0530, Vidya Sagar wrote: > Add support for ECAM aperture for Tegra234. > > Signed-off-by: Vidya Sagar > --- > .../devicetree/bindings/pci/nvidia,tegra194-pcie.yaml | 10 ++++++++-- > .../devicetree/bindings/pci/snps,dw-pcie.yaml | 2 +- > 2 files changed, 9 insertions(+), 3 deletions(-) > > diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml > index 75da3e8eecb9..15cc2d2055bb 100644 > --- a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml > +++ b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml > @@ -27,6 +27,7 @@ properties: > - nvidia,tegra234-pcie > > reg: > + minItems: 4 > items: > - description: controller's application logic registers > - description: configuration registers > @@ -35,13 +36,17 @@ properties: > available for software access. > - description: aperture where the Root Port's own configuration > registers are available. > + - description: aperture to access the configuration space through ECAM. > + This is applicable only for Tegra234. Is it really only Tegra234 or that's all you've tested or care about? For the former, I agree with Krzysztof. Rob