Dear Felix,
In message <[email protected]> you wrote:
>
> >> This needs to be rewritten.
> >
> > To try and help clarify, the property in question means "quantity to
> > shift the register offsets by." It should be clear in our Kconfig help
> > entry as well that this is what we're looking for.
> >
> Thanks for this! The help text will be fixed in v2.
None of the places I could find in the Linux
Documentation/devicetree/bindings directory actually explains what
"shift the register offsets" means. Only the code reveals that
this means a LEFT shift of the register address (offset).
At least one place in Linux interprets <reg-shift> differently; here
it operates on the _data_ (instead there they use <reg-spacing>):
"devicetree/bindings/ipmi/ipmi-smic.txt":
- reg-shift - The amount to shift the registers to the right to get the data
into bit zero.
(see ipmi_si_mem_io.c
So can we please add an explanation what _exactly_ this means?
Thanks.
Wolfgang Denk
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: [email protected]
It is easier to write an incorrect program than understand a correct
one.
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