[PATCH v2] dt-bindings: i2c: renesas,riic: Drop clock-frequency from required

[Tommaso Merciai]

clock-frequency is described as optional, with 100 kHz assumed when
absent, yet it is also listed as required.

The description is correct: i2c-riic calls i2c_parse_fw_timings() with
use_defaults set, so the core falls back to I2C_MAX_STANDARD_MODE_FREQ
when the property is absent.

The stale requirement only produces dtbs_check noise on boards relying
on the default:

  i2c@14400800 (renesas,riic-r9a09g047): 'clock-frequency' is a
  required property

Drop it.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@xxxxxxxxxxxxxx>
---
v1->v2:
 - Dropped all v1 series, need a rework.
 - Fixed dtbs_check failure by dropping clock-frequency from the required list,
   instead of adding it to the dts, as the absence of this property
   indicates the default frequency 100 kHz.
   v1: https://lore.kernel.org/all/20260803132828.3249424-3-tommaso.merciai.xr@xxxxxxxxxxxxxx/

 Documentation/devicetree/bindings/i2c/renesas,riic.yaml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/i2c/renesas,riic.yaml b/Documentation/devicetree/bindings/i2c/renesas,riic.yaml
index ae1f71eadc66..c5d07b722c43 100644
--- a/Documentation/devicetree/bindings/i2c/renesas,riic.yaml
+++ b/Documentation/devicetree/bindings/i2c/renesas,riic.yaml
@@ -95,7 +95,6 @@ required:
   - interrupts
   - interrupt-names
   - clocks
-  - clock-frequency
   - power-domains
   - '#address-cells'
   - '#size-cells'
-- 
2.54.0