On Sun, Mar 19, 2017 at 10:59:44AM +0000, Russell King - ARM Linux wrote:
> Hi,
>
> This series cleans up the phylib MMD accessors. We have two accessors
> at present, phy_(read|write)_mmd() and phy_(read|write)_mmd_indirect()
>
> The _indirect methods access the MMD registers via a clause 22 phy,
> whereas the non-_indirect methods acess via clause 45 accesses.
>
> Current PHY-independent parts of phylib (such as EEE) access the MMD
> registers via the _indirect methods, which is no good if you have a
> clause 45 PHY that doesn't respond to clause 22 accesses.
>
> In order to make these features available, we need to rework these
> accessors such that they can access the MMD registers using a method
> dependent on the clause that the PHY conforms with.
>
> This series of patches does exactly that - we merge the functionality
> of the indirect accesses into the clause 45 accessors, and use these
> exclusively to access MMD registers. Internally, the new clause
> independent MMD accessors indirect via the PHY drivers read_mmd/write_mmd
> methods if present, otherwise fall back to using clause 45 accesses if
> the PHY is a clause 45 phy, or clause 22 indirect accesses if the PHY
> is clause 22.
>
> Note: confusingly, phy_read_mmd_indirect() vs phy_read_mmd() switches
> the order of prtad and devad, which means that converting between the
> two is not a simple matter of just replacing the function name. Same
> applies for the write methods.
Hi Russell
This all looks good, apart from the one typo i spotted.
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Andrew
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