netdev - Re: [PATCH 0/2] mv88e6xxx: Poll when no interrupt defined

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Message-ID: <87lgfelohp.fsf@bootlin.com>
Date:   Tue, 27 Feb 2018 11:24:02 +0100
From:   Gregory CLEMENT <gregory.clement@...tlin.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     David Miller <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        Gregory Clement <gregory.clement@...e-electrons.com>
Subject: Re: [PATCH 0/2] mv88e6xxx: Poll when no interrupt defined

Hi Andrew,
 
 On jeu., févr. 22 2018, Andrew Lunn <andrew@...n.ch> wrote:

> Not all boards using the mv88e6xxx switches have the interrupt output
> connected to a GPIO. On these boards phylib has to poll the PHYs,
> rather than use interrupts. Have the driver poll the interrupt status
> register, which is more efficient than having phylib do it. And it
> enables other switch interrupts to be services.
>
> The Armada 370RD is such a board without a interrupt GPIO. Now that
> interrupts work, wire up the PHYs to make use if them.
>
> Gregory: Are you O.K. for the second patch to go through netdev?

Why do you need that the second patch to go through netdev. Is there any
dependency between the 2 patches?

If it is the case does it means that an new kernel won't work with an
old device tree?

Gregory


>
> Andrew Lunn (2):
>   net: dsa: mv88e6xxx: Poll when no interrupt defined
>   arm: mvebu: 370-rd: Enable PHY interrupt handling
>
>  arch/arm/boot/dts/armada-370-rd.dts |  32 ++++++++
>  drivers/net/dsa/mv88e6xxx/chip.c    | 146 +++++++++++++++++++++++++-----------
>  drivers/net/dsa/mv88e6xxx/chip.h    |   3 +
>  3 files changed, 138 insertions(+), 43 deletions(-)
>
> -- 
> 2.15.1
>

-- 
Gregory Clement, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
http://bootlin.com