netdev - Re: [PATCH] of: of_mdio: Add marvell,88e1145 to whitelist of PHY compatibilities.

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Date:	Wed, 3 Feb 2016 22:50:25 +0200
From:	Aaro Koskinen <aaro.koskinen@....fi>
To:	Andrew Lunn <andrew@...n.ch>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	Florian Fainelli <f.fainelli@...il.com>,
	David Daney <ddaney@...iumnetworks.com>
Subject: Re: [PATCH] of: of_mdio: Add marvell,88e1145 to whitelist of PHY
 compatibilities.

Hi,

On Wed, Feb 03, 2016 at 09:08:57PM +0100, Andrew Lunn wrote:
> On Wed, Feb 03, 2016 at 09:35:29PM +0200, Aaro Koskinen wrote:
> > Commit ae461131960b ("of: of_mdio: Add a whitelist of PHY
> > compatibilities.") missed one compatible string used in in-tree DTBs:
> > in OCTEON, for selected boards, the kernel DTB pruning code will overwrite
> > the DTB compatible string with "marvell,88e1145", which is missing
> > from the whitelist. Add it.
> 
> Does this overwriting means this compatibility is not visible in the
> current DTS files? Or did i miss it?

Yeah, it happens in arch/mips/cavium-octeon/octeon-platform.c:

        if (octeon_has_88e1145()) {
                fdt_nop_property(initial_boot_params, phy, "marvell,reg-init");
                memset(new_name, 0, sizeof(new_name));
                strcpy(new_name, "marvell,88e1145");

It took a while for me to figure out this as well... Nasty.

> At least for the Marvell SoCs i intend to submit a patch removing
> these compatible strings from the DTS files. Will you do the same for
> the OCTEON boards?

Yes, for in-tree OCTEON DTS files, I can do the update; the above strcpy
needs to be deleted at the same go, and this needs go through MIPS tree.

A.