linux-kernel - RE: [PATCH v2 1/7] mdio:mux: Enhanced MDIO mux framework for integrated multiplexers

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Message-ID: <722986e44cf0e0fbb8073605c8d8dcda@mail.gmail.com>
Date:	Fri, 3 Jun 2016 19:11:44 +0530
From:	Pramod Kumar <pramod.kumar@...adcom.com>
To:	Andrew Lunn <andrew@...n.ch>
Cc:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Kishon Vijay Abraham I <kishon@...com>,
	"David S. Miller" <davem@...emloft.net>,
	devicetree@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	bcm-kernel-feedback-list@...adcom.com,
	linux-arm-kernel@...ts.infradead.org
Subject: RE: [PATCH v2 1/7] mdio:mux: Enhanced MDIO mux framework for
 integrated multiplexers

Hi Andrew,

> -----Original Message-----
> From: Andrew Lunn [mailto:andrew@...n.ch]
> Sent: 01 June 2016 18:32
> To: Pramod Kumar
> Cc: Rob Herring; Pawel Moll; Mark Rutland; Ian Campbell; Kumar Gala;
Catalin
> Marinas; Will Deacon; Kishon Vijay Abraham I; David S. Miller;
> devicetree@...r.kernel.org; netdev@...r.kernel.org; linux-
> kernel@...r.kernel.org; bcm-kernel-feedback-list@...adcom.com;
linux-arm-
> kernel@...ts.infradead.org
> Subject: Re: [PATCH v2 1/7] mdio:mux: Enhanced MDIO mux framework for
> integrated multiplexers
>
> > diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c index
> > 8453f08..cf40e7a 100644
> > --- a/drivers/of/of_mdio.c
> > +++ b/drivers/of/of_mdio.c
> > @@ -225,6 +225,9 @@ int of_mdiobus_register(struct mii_bus *mdio,
struct
> device_node *np)
> >  	if (rc)
> >  		return rc;
> >
> > +	if (of_property_read_bool(np, "mdio-integrated-mux"))
> > +		return 0;
> > +
>
> Hi
>
> Rather than doing this, did you try setting bus->phy_mask = 0 and
calling
> mdiobus_register(), rather than of_mdiobus_regsiter() for the parent
bus?
>

After setting bus->phy_mask = ~0 and using mdiobus_regsiter() I could get
rid of newly added
Property. It works for me as I find same has been done inside of
of_mdiobus_regsiter().

Thanks for pointing out this.

> 	Andrew