Saravana Kannan 7bd0cef5da net: mdio-mux: Handle -EPROBE_DEFER correctly ... When registering mdiobus children, if we get an -EPROBE_DEFER, we shouldn't ignore it and continue registering the rest of the mdiobus children. This would permanently prevent the deferring child mdiobus from working instead of reattempting it in the future. So, if a child mdiobus needs to be reattempted in the future, defer the entire mdio-mux initialization. This fixes the issue where PHYs sitting under the mdio-mux aren't initialized correctly if the PHY's interrupt controller is not yet ready when the mdio-mux is being probed. Additional context in the link below. Fixes: 0ca2997d14 ("netdev/of/phy: Add MDIO bus multiplexer support.") Link: https://lore.kernel.org/lkml/CAGETcx95kHrv8wA-O+-JtfH7H9biJEGJtijuPVN0V5dUKUAB3A@mail.gmail.com/#t Signed-off-by: Saravana Kannan <saravanak@google.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Marc Zyngier <maz@kernel.org> Tested-by: Marc Zyngier <maz@kernel.org> Acked-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2021-08-18 10:48:52 +01:00
..
acpi_mdio.c	net: mdio: Add ACPI support code for mdio	2021-06-11 13:08:53 -07:00
fwnode_mdio.c	net: mdiobus: withdraw fwnode_mdbiobus_register	2021-06-25 11:46:29 -07:00
Kconfig	net: mdio: Add ACPI support code for mdio	2021-06-11 13:08:53 -07:00
Makefile	net: mdio: Add ACPI support code for mdio	2021-06-11 13:08:53 -07:00
mdio-aspeed.c
mdio-bcm-iproc.c
mdio-bcm-unimac.c
mdio-bitbang.c
mdio-cavium.c
mdio-cavium.h
mdio-gpio.c
mdio-hisi-femac.c
mdio-i2c.c
mdio-ipq4019.c
mdio-ipq8064.c
mdio-moxart.c
mdio-mscc-miim.c	net: mdio: mscc-miim: Use devm_platform_get_and_ioremap_resource()	2021-06-11 13:10:20 -07:00
mdio-mux-bcm-iproc.c	net: mido: mdio-mux-bcm-iproc: Use devm_platform_get_and_ioremap_resource()	2021-06-10 13:59:37 -07:00
mdio-mux-bcm6368.c
mdio-mux-gpio.c
mdio-mux-meson-g12a.c
mdio-mux-mmioreg.c
mdio-mux-multiplexer.c
mdio-mux.c	net: mdio-mux: Handle -EPROBE_DEFER correctly	2021-08-18 10:48:52 +01:00
mdio-mvusb.c
mdio-octeon.c
mdio-sun4i.c
mdio-thunder.c
mdio-xgene.c
of_mdio.c	net: mdio: use device_set_node() to setup both fwnode and of	2021-06-17 12:06:52 -07:00