Messages in this thread | | | Date | Sun, 10 May 2020 16:32:56 +0200 | From | Andrew Lunn <> | Subject | Re: [PATCH net-next 1/4] net: phy: broadcom: add exp register access methods without buslock |
| |
On Sun, May 10, 2020 at 12:37:11AM +0200, Michael Walle wrote: > Add helper to read and write expansion registers without taking the mdio > lock. > > Please note, that this changes the semantics of the read and write. > Before there was no lock between selecting the expansion register and > the actual read/write. This may lead to access failures if there are > parallel accesses. Instead take the bus lock during the whole access > cycle. > > Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
| |