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Sat, 03 May 2025 04:52:45 -0700 (PDT) From: Alexey Charkov Date: Sat, 03 May 2025 15:52:31 +0400 Subject: [PATCH v3 1/3] dt-bindings: hwinfo: 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-v3-1-2daa9056fa10@gmail.com> References: <20250503-wmt-soc-driver-v3-0-2daa9056fa10@gmail.com> In-Reply-To: <20250503-wmt-soc-driver-v3-0-2daa9056fa10@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=1746273161; l=1709; i=alchark@gmail.com; s=20250416; h=from:subject:message-id; bh=tyWqtL/rut5YPhdVN3q+GvWjCSJidX/06j4iYfBzgBw=; b=aBVAj3FRh3C/HeLG1KrEZgKHxNVznXy3dLXZzSekK/QXHKCFcyGSzx6Vc+6KcMmBIQVus65V8 ASkpJiy/j07AVcBP9xhmuag+j68tcuVX/SD+BkOLAtnHPf0kKNjFANI 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 Reviewed-by: Krzysztof Kozlowski --- .../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..b0f425a4a882be8537f9873fdaa= 4ddf49d3c825c --- /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 +--- +$id: http://devicetree.org/schemas/hwinfo/via,vt8500-scc-id.yaml# +$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