On Fri, Jan 22, 2021 at 04:03:34PM +0100, Marc Kleine-Budde wrote:
> In our setup the dp83tc811 is configure to master mode. When there is no slave
> connected the dp83tc811 triggers an interrupt is triggerd, several bits in the
> status registers are set, and te INT_N pin goes low. One of interrupt bits is
> the NO_FRAME interrupt.
>
> Reading the status register acknowledges the interrupt, but as there is still
> no slave connected, the NO_FRAME interrupt stays set and the INT_N pin low.
> For
> level triggered IRQs this results in an interrupt storm, as long as the slave
> is not connected. For edge triggered interupts the link change event, when the
> slave comes online, is lost.
>
> To fix this problem the NO_FRAME interrupt is not enabled. At least in our
> testcase with edge triggered interrupts link change events are now properly
> detected.
>
> Cc: Dan Murphy <dmur...@ti.com>
> Signed-off-by: Marc Kleine-Budde <m...@pengutronix.de>
Hi Marc
Seems reasonable. Please add to your rebased version:
Reviewed-by: Andrew Lunn <and...@lunn.ch>
Andrew
