Re: [PATCH 1/3] dt-bindings: soc: renesas: add MFIS binding documentation

Krzysztof Kozlowski
2026-03-19T08:58:20Z

On 19/03/2026 09:54, Geert Uytterhoeven wrote:
>>
>>> +
>>> +/*
>>> + * MFIS variants before r8a78001 work with pairs of IICR and EICR registers.
>>> + * Usually, it is specified in the datasheets which of the two a specific core
>>> + * should use. Then, it does not need extra description in DT. For plain MFIS
>>> + * of r8a78000, this is selectable, though. According to the system design and
>>> + * the firmware in use, these channels need to be marked. This is not needed
>>> + * with other versions of the MFIS, not even with MFIS-SCP of r8a78000.
>>> + */
>>> +#define MFIS_CHANNEL_IICR (0 << 1)
>>> +#define MFIS_CHANNEL_EICR (1 << 1)
>>
>> Same here.
>
> These are flags as the documentation for the #mbox-cells property in the
> bindings file states, to be ORed.

I did not get the driver so I cannot verify that. What sort of Linux ABI
does this bind?

Best regards,
Krzysztof