Hi Simon,
On Tue, Feb 16, 2016 at 4:26 AM, Simon Horman <horms@xxxxxxxxxxxx> wrote:
> I have observed what appears to be a regression in the ravb ethernet driver
> caused by d5c3d84657db ("net: phy: Avoid polling PHY with
> PHY_IGNORE_INTERRUPTS").
>
> When booting net-next configured with the ARM64 defconfig on the Renesas
> r8a7795/salvator-x I see the following and the ravb is unable to access the
> network. With the above mentioned patch reverted I am able to boot to
> user-space using nfsroot.
The ravb interrupt is connected to a GPIO controller, which is
runtime-suspended and thus not serving the interrupt.
Cfr. "[PATCH/RFC] gpio: rcar: Add Runtime PM handling for interrupts"
(http://www.spinics.net/lists/linux-renesas-soc/msg00532.html).
I assume it worked before as the PHY driver polled the PHY instead of relying
solely on the interrupt.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
