linux-kernel - Re: [PATCH net-next v2 7/8] net: phy: meson-gxl: add interrupt support

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Message-ID: <1512662689.7042.20.camel@baylibre.com>
Date:   Thu, 07 Dec 2017 17:04:49 +0100
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Kevin Hilman <khilman@...libre.com>, netdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v2 7/8] net: phy: meson-gxl: add interrupt
 support

On Thu, 2017-12-07 at 16:54 +0100, Andrew Lunn wrote:
> On Thu, Dec 07, 2017 at 03:27:14PM +0100, Jerome Brunet wrote:
> > Enable interrupt support in meson-gxl PHY driver
> 
> Hi Jerome
> 
> Is it possible to implement did_interrupt()? That allows for shared
> interrupts. It does however work fine without it, so long as the
> interrupt is not shared.

Hi Andrew,

It is always possible ;). The irq status registers gets reset on read.

In such case, ack_interrupt() and did_interrupt() would be more or less the same
function, except for the returned value, I guess ?

The phy being internal, I think it is unlikely to ever share its interrupt
though. If you prefer I implement this callback, I can certainly re-spin with it
?

Thanks for the lightning fast review by the way !

> 
> 	  Thanks
> 		Andrew