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dt-bindings: i2c: realtek,rtl9301-i2c: extend for clocks and RTL9607C support

Add the "realtek,rtl9607-i2c" compatible for i2c controller on the
RTL9607C SoC series.

Add a clocks property to the properties to describe the i2c reference
clock and make it available for all the compatibles. This i2c reference
clock is assumed to be coming from switchcore region via Lexra bus as
the other SoC peripherals.

According to the info available about the existing devices, they also
have the i2c master controller clocks.

RTL9607C requires the "realtek,scl" and "clocks" to be specified
and so handle it under separate if check for "realtek,rtl9607-i2c".

Signed-off-by: Rustam Adilov <adilov@disroot.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260401180648.337834-6-adilov@disroot.org

authored by

Rustam Adilov and committed by
Andi Shyti 1211ce1e 6afde011

+15
+15
Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml
··· 15 15 assigned to either I2C controller. 16 16 RTL9310 SoCs have equal capabilities but support 12 common SDA lines which 17 17 can be assigned to either I2C controller. 18 + RTL9607C SoCs have equal capabilities but each controller only supports 1 19 + SCL/SDA line. 18 20 19 21 properties: 20 22 compatible: ··· 36 34 - enum: 37 35 - realtek,rtl9301-i2c 38 36 - realtek,rtl9310-i2c 37 + - realtek,rtl9607-i2c 39 38 40 39 reg: 41 40 items: ··· 53 50 description: 54 51 The SCL line number of this I2C controller. 55 52 enum: [ 0, 1 ] 53 + 54 + clocks: 55 + maxItems: 1 56 56 57 57 patternProperties: 58 58 '^i2c@[0-9ab]$': ··· 87 81 then: 88 82 patternProperties: 89 83 '^i2c@[89ab]$': false 84 + - if: 85 + properties: 86 + compatible: 87 + contains: 88 + const: realtek,rtl9607-i2c 89 + then: 90 + required: 91 + - realtek,scl 92 + - clocks 90 93 91 94 required: 92 95 - compatible