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Fri, 13 Oct 2023 03:30:30 -0700 (PDT) Received: from [192.168.1.20] ([178.197.219.100]) by smtp.gmail.com with ESMTPSA id t9-20020a05600001c900b0032179c4a46dsm20484740wrx.100.2023.10.13.03.30.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 13 Oct 2023 03:30:30 -0700 (PDT) Message-ID: <02d3fa42-75a3-4f4f-ade6-204c8146d694@linaro.org> Date: Fri, 13 Oct 2023 12:30:28 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/5] dt-bindings: nvmem: Convert xlnx,zynqmp-nvmem.txt to yaml Content-Language: en-US To: Praveen Teja Kundanala , srinivas.kandagatla@linaro.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, michal.simek@amd.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org References: <20231013101450.573-1-praveen.teja.kundanala@amd.com> <20231013101450.573-3-praveen.teja.kundanala@amd.com> From: Krzysztof Kozlowski Autocrypt: addr=krzysztof.kozlowski@linaro.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net On 13/10/2023 12:14, Praveen Teja Kundanala wrote: > Convert the xlnx,zynqmp-nvmem.txt to yaml. > > Signed-off-by: Praveen Teja Kundanala > --- > .../bindings/nvmem/xlnx,zynqmp-nvmem.txt | 46 --------------- > .../bindings/nvmem/xlnx,zynqmp-nvmem.yaml | 59 +++++++++++++++++++ > 2 files changed, 59 insertions(+), 46 deletions(-) > delete mode 100644 Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.txt > create mode 100644 Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.yaml > > diff --git a/Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.txt b/Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.txt > deleted file mode 100644 > index 4881561b3a02..000000000000 > --- a/Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.txt > +++ /dev/null > @@ -1,46 +0,0 @@ > --------------------------------------------------------------------------- > -= Zynq UltraScale+ MPSoC nvmem firmware driver binding = > --------------------------------------------------------------------------- > -The nvmem_firmware node provides access to the hardware related data > -like soc revision, IDCODE... etc, By using the firmware interface. > - > -Required properties: > -- compatible: should be "xlnx,zynqmp-nvmem-fw" > - > -= Data cells = > -Are child nodes of silicon id, bindings of which as described in > -bindings/nvmem/nvmem.txt > - > -------- > - Example > -------- > -firmware { > - zynqmp_firmware: zynqmp-firmware { > - compatible = "xlnx,zynqmp-firmware"; > - method = "smc"; > - > - nvmem_firmware { > - compatible = "xlnx,zynqmp-nvmem-fw"; > - #address-cells = <1>; > - #size-cells = <1>; > - > - /* Data cells */ > - soc_revision: soc_revision { > - reg = <0x0 0x4>; > - }; > - }; > - }; > -}; > - > -= Data consumers = > -Are device nodes which consume nvmem data cells. > - > -For example: > - pcap { > - ... > - > - nvmem-cells = <&soc_revision>; > - nvmem-cell-names = "soc_revision"; > - > - ... > - }; > diff --git a/Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.yaml b/Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.yaml > new file mode 100644 > index 000000000000..e03ed8c32537 > --- /dev/null > +++ b/Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.yaml > @@ -0,0 +1,59 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/nvmem/xlnx,zynqmp-nvmem.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Zynq UltraScale+ MPSoC Non Volatile Memory interface > + > +description: | > + The ZynqMP MPSoC provides access to the hardware related data > + like SOC revision, IDCODE. > + > +maintainers: > + - Kalyani Akula > + - Praveen Teja Kundanala > + > +allOf: > + - $ref: "nvmem.yaml#" Drop quotes. > + > +properties: > + compatible: > + const: xlnx,zynqmp-nvmem-fw > + > + '#address-cells': > + const: 1 Drop > + > + '#size-cells': > + const: 1 Drop > + > +required: > + - compatible required: block goes after patternProperties: block > + > +patternProperties: > + "^soc_revision@0$": Why do you define individual memory cells? Is this part of a binding? IOW, OS/Linux requires this? > + type: object > + description: > + This node is used to read SOC version and IDCODE of ZynqMP. Read-only. > + > + properties: > + reg: > + maxItems: 1 > + > + required: > + - reg > + > +additionalProperties: false Instead: unevaluatedProperties: false > + > +examples: > + - | > + nvmem_firmware { Underscores are not allowed in node names. Node names should be generic. See also an explanation and list of examples (not exhaustive) in DT specification: https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation Look at other files for examples. > + compatible = "xlnx,zynqmp-nvmem-fw"; > + #address-cells = <1>; > + #size-cells = <1>; > + > + /* Data cells */ > + soc_revision: soc_revision@0 { Drop unused label. No underscores in node names. Best regards, Krzysztof