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Fri, 02 May 2025 15:04:49 -0700 (PDT) From: Alexey Charkov Date: Sat, 03 May 2025 02:04:23 +0400 Subject: [PATCH v2 1/3] dt-bindings: soc: Add VIA/WonderMedia SoC identification Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250503-wmt-soc-driver-v2-1-8c774ad84d47@gmail.com> References: <20250503-wmt-soc-driver-v2-0-8c774ad84d47@gmail.com> In-Reply-To: <20250503-wmt-soc-driver-v2-0-8c774ad84d47@gmail.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Krzysztof Kozlowski Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Alexey Charkov X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1746223484; l=1713; i=alchark@gmail.com; s=20250416; h=from:subject:message-id; bh=g8O89/tgxr9vz1Mo4beSgs2+D45p8f8lUVQIzp/SfqA=; b=EAIdOSwrW7w3KBGa/ocx/LaApsk6+8FLtGjQCektH9Dvh4aT21hW/4ADeFZoclicEljnO5tE9 RUQ+2rIXptGDYQhtoNVw16zgJfo+5uSYHW+gvrBdUcTFbmKLw3NYP5Q X-Developer-Key: i=alchark@gmail.com; a=ed25519; pk=ltKbQzKLTJPiDgPtcHxdo+dzFthCCMtC3V9qf7+0rkc= VIA/WonderMedia SoC's have a chip ID register inside their system configuration controller space, which can be used to identify appropriate hardware quirks at runtime. Add binding for it. Signed-off-by: Alexey Charkov --- .../bindings/hwinfo/via,vt8500-scc-id.yaml | 37 ++++++++++++++++++= ++++ 1 file changed, 37 insertions(+) diff --git a/Documentation/devicetree/bindings/hwinfo/via,vt8500-scc-id.yam= l b/Documentation/devicetree/bindings/hwinfo/via,vt8500-scc-id.yaml new file mode 100644 index 0000000000000000000000000000000000000000..87bdb947dedb47b508528d70543= aba067aa03e95 --- /dev/null +++ b/Documentation/devicetree/bindings/hwinfo/via,vt8500-scc-id.yaml @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/vt8500/via,vt8500-scc-id.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: VIA/WonderMedia SoC system configuration information + +maintainers: + - Alexey Charkov + +description: + The system configuration controller on VIA/WonderMedia SoC's contains a = chip + identifier and revision used to differentiate between different hardware + versions of on-chip IP blocks having their own peculiarities which may or + may not be captured by their respective DT compatible strings + +properties: + compatible: + items: + - const: via,vt8500-scc-id + + reg: + maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + chipid@d8120000 { + compatible =3D "via,vt8500-scc-id"; + reg =3D <0xd8120000 0x4>; + }; --=20 2.49.0