Re: [PATCH 2/3] arm64: dts: renesas: r9a09g047: Add missing I2C clock-frequency

Krzysztof Kozlowski <[email protected]> Mon, 3 Aug 2026 15:33:40 +0200

Newsgroups	gmane.linux.drivers.devicetree,gmane.linux.kernel.renesas-soc,gmane.linux.sound,gmane.linux.kernel
Message-ID	<[email protected]>

On 03/08/2026 15:28, Tommaso Merciai wrote:
> clock-frequency is a required property of the renesas,riic binding, but
> it is not set in any of the I2C nodes, so dtbs_check fails on boards
> that enable an I2C controller without providing a rate:
> 
>   r9a09g047e57-smarc.dtb: i2c@14400800 (renesas,riic-r9a09g047):
>   'clock-frequency' is a required property
> 
> Add the standard mode rate (100 kHz) to all I2C nodes. Boards that
> need a faster bus can still override it.

Why? Binding looks wrong. It clearly says that property can be missing
and is required.


Best regards,
Krzysztof