On Mon, 16 Dec 2019 12:57:40 +1030, Andrew Jeffery wrote:
> The v2 binding utilises reg and renames some of the v1 properties.
> 
> Signed-off-by: Andrew Jeffery <and...@aj.id.au>
> ---
> v2: Rename slave-reg to aspeed,lpc-io-reg
> 
> Rob: After our discussion about the name of 'slave-reg' on v1 I've thought
> about it some more and have landed on aspeed,lpc-io-reg. In v1 I argued that
> the name should be generic and you suggested that if so it should go in a
> generic binding document - I've thought about this some more and concluded 
> that
> it was hard to pin down exactly where it should be documented if it were
> generic (the generic ASPEED LPC binding is one place, but that would suggest
> that the property is still ASPEED-specific; maybe some discussion with
> Nuvoton might give some insight).
> 
> Regardless, it turns out that the address specification is really
> ASPEED-specific in this case: The KCS host interface in the LPC IO space
> consists of a data and status register, but the slave controller infers the
> address of the second from the address of the first and thus only the address
> of the first can be programmed on the BMC-side. ASPEED supply documentation
> that maps the LPC-side register layout for given LPC IO base addresses. I 
> think
> this is esoteric enough to warrant the aspeed prefix.
> 
>  Documentation/devicetree/bindings/ipmi/aspeed-kcs-bmc.txt | 20 +++++---
>  1 file changed, 14 insertions(+), 6 deletions(-)
> 

Reviewed-by: Rob Herring <r...@kernel.org>


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