[PATCH v2 06/10] dt-bindings: i2c: dw: Add compatible for UltraRISC DP1000 SoC
From: Jia Wang via B4 Relay <devnull+wangjia.ultrarisc.com@kernel.org>
Date: 2026-09-07 09:58:26
Also in:
b4-sent, dmaengine, linux-i2c, linux-riscv, linux-spi, lkml
Subsystem:
i2c subsystem host drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Andi Shyti, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
From: Jia Wang <wangjia@ultrarisc.com> The DP1000 integrates four DesignWare APB I2C controllers. I2C1 supports SMBus, while I2C0, I2C2, and I2C3 support standard I2C transfers. Each controller has one register range and uses separate reference and APB interface clocks. Add the DP1000-specific compatible string with the generic one as a fallback. Signed-off-by: Jia Wang <wangjia@ultrarisc.com> --- .../devicetree/bindings/i2c/snps,designware-i2c.yaml | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
index 467bdcbb8538..8a7c0a44601b 100644
--- a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml@@ -21,6 +21,20 @@ allOf: properties: reg: maxItems: 1 + - if: + properties: + compatible: + contains: + const: ultrarisc,dp1000-i2c + then: + properties: + clocks: + minItems: 2 + clock-names: + minItems: 2 + required: + - clocks + - clock-names properties: compatible:
@@ -44,6 +58,7 @@ properties: - mscc,ocelot-i2c - sophgo,sg2044-i2c - thead,th1520-i2c + - ultrarisc,dp1000-i2c - const: snps,designware-i2c reg:
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2.34.1