Add the "baikal,bt1-sys-i2c" compatible string to the DW I2C binding and make sure the reg property isn't required in this case because the controller is embedded into the Baikal-T1 System Controller. The rest of the DW APB I2C properties are compatible and can be freely used to describe the Baikal-T1 I2C controller dts-node.
Signed-off-by: Serge Semin <[email protected]> Cc: Alexey Malahov <[email protected]> Cc: Thomas Bogendoerfer <[email protected]> Cc: Paul Burton <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Andy Shevchenko <[email protected]> Cc: Mika Westerberg <[email protected]> Cc: Wolfram Sang <[email protected]> Cc: Frank Rowand <[email protected]> Cc: [email protected] --- Rob, I had to remove your acked-by tag because of the changes introduced in v2 of the patch. Changelog v2: - Make the reg property being optional if it's Baikal-T1 System I2C DT node. --- .../devicetree/bindings/i2c/snps,designware-i2c.yaml | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml index 8d4e5fccbd1c..579964098eb9 100644 --- a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml +++ b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml @@ -21,6 +21,15 @@ allOf: properties: reg: maxItems: 1 + - if: + properties: + compatible: + not: + contains: + const: baikal,bt1-sys-i2c + then: + required: + - reg properties: compatible: @@ -31,6 +40,8 @@ properties: items: - const: mscc,ocelot-i2c - const: snps,designware-i2c + - description: Baikal-T1 SoC System I2C controller + const: baikal,bt1-sys-i2c reg: minItems: 1 @@ -98,7 +109,6 @@ unevaluatedProperties: false required: - compatible - - reg - "#address-cells" - "#size-cells" - interrupts -- 2.25.1
