netdev - Re: [PATCH net-next] net: dsa: mv88e6xxx: Add watchdog interrupt handler

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Message-ID: <20170204233140.GB13323@lunn.ch>
Date:   Sun, 5 Feb 2017 00:31:40 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     David Miller <davem@...emloft.net>
Cc:     netdev <netdev@...r.kernel.org>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Subject: Re: [PATCH net-next] net: dsa: mv88e6xxx: Add watchdog interrupt
 handler

On Sat, Feb 04, 2017 at 09:38:54PM +0100, Andrew Lunn wrote:
> The switch contains a watchdog looking for issues with the internal
> gubbins of the switch. Hook the interrupt the watchdog triggers and
> log the value of the control register indicating why the watchdog
> fired. The watchdog can only be cleared with a switch reset, which
> will destroy the current configuration. Rather than doing this, just
> disable the interrupt.

Arg!

It has been pointed out that the mv88e6390 does watchdogs differently,
and this code is not going to work there.

Please drop this patch, i will post a new version later.

       Andrew