Hello.
On 2/16/2016 10:42 AM, Geert Uytterhoeven 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.
Correct. BTW, I'm going to look at handling AVB_PHY_INT in the ravb
driver, thus removing the need for routing it to the GPIO controller now that
phylib allows this again...
Gr{oetje,eeting}s,
Geert
MBR, Sergei
