Re: [PATCH v4 2/2] dt-bindings: mmc: renesas,sdhi: Document RZ/G2L bindings

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Hi everyone,

> > +            - description: IMCLK, SDHI channel main clock1.

Sounds like "core"

> > +            - description: IMCLK2, SDHI channel main clock2. When this clock is
> > +                           turned off, external SD card detection cannot be
> > +                           detected.

"cd"

> > +            - description: CLK_HS, SDHI channel High speed clock which operates
> > +                           4 times that of SDHI channel main clock1.

"clkh" compared to the Gen3 bindings to me.

> > +            - description: ACLK, SDHI channel bus clock.

This I don't understand. The CPG-MSSR clock?

> Does this actually work with the current Linux SDHI driver? How are
> the extra clocks handled?

It may work out of the box if their HW can have "clkh" enabled all the
time and this is their default. Gen3 has recommendations to disable clkh
for slow transfer modes, so we need handling of clkh

Kind regards,

   Wolfram

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