From: Martin Blumenstingl <martin.blumensti...@googlemail.com>
Date: Mon, 10 Jul 2017 14:35:23 +0200
> mdio_mux_init parses the child nodes of the MDIO mux. When using
> "mdio-mux-mmioreg" the child nodes are describing the register value
> that is written to switch between the MDIO busses.
>
> The change which makes the error messages more verbose changed the
> parsing of the "reg" property from a simple of_property_read_u32 call
> to of_mdio_parse_addr. On a Khadas VIM (based on the Meson GXL SoC,
> which uses mdio-mux-mmioreg) this prevents registering the MDIO mux
> (because the "reg" values on the MDIO mux child nodes are 0x2009087f
> and 0xe40908ff) and leads to the following errors:
> mdio-mux-mmioreg c883455c.eth-phy-mux:
> /soc/periphs@c8834000/eth-phy-mux/mdio@e40908ff PHY address -469169921 is too
> large
> mdio-mux-mmioreg c883455c.eth-phy-mux: Error: Failed to find reg for child
> /soc/periphs@c8834000/eth-phy-mux/mdio@e40908ff
> mdio-mux-mmioreg c883455c.eth-phy-mux:
> /soc/periphs@c8834000/eth-phy-mux/mdio@2009087f PHY address 537462911 is too
> large
> mdio-mux-mmioreg c883455c.eth-phy-mux: Error: Failed to find reg for child
> /soc/periphs@c8834000/eth-phy-mux/mdio@2009087f
> mdio-mux-mmioreg c883455c.eth-phy-mux: Error: No acceptable child buses
> found
> mdio-mux-mmioreg c883455c.eth-phy-mux: failed to register mdio-mux bus
> /soc/periphs@c8834000/eth-phy-mux
> (as a result of that ethernet is not working, because the PHY which is
> connected through the mux' child MDIO bus, which is not being
> registered).
>
> Fix this by reverting the change from of_mdio_parse_addr to
> of_mdio_parse_addr.
>
> Fixes: 342fa1964439 ("mdio: mux: make child bus walking more permissive and
> errors more verbose")
> Signed-off-by: Martin Blumenstingl <martin.blumensti...@googlemail.com>
Applied, thanks.
