From: Srinivas KANDAGATLA <[email protected]> Date: Fri, 16 Nov 2012 10:33:59 +0000
> From: Srinivas Kandagatla <[email protected]> > > When the mdio-gpio driver is probed via device trees, the platform > device id is set as -1, However the pdev->id is re-used as bus-id for > while creating mdio gpio bus. > So > For device tree case the mdio-gpio bus name appears as "gpio-ffffffff" > where as > for non-device tree case the bus name appears as "gpio-<bus-num>" > > Which means the bus_id is fixed in device tree case, so we can't have > two mdio gpio buses via device trees. Assigning a logical bus number > via device tree solves the problem and the bus name is much consistent > with non-device tree bus name. > > Without this patch > 1. we can't support two mdio-gpio buses via device trees. > 2. we should always pass gpio-ffffffff as bus name to phy_connect, very > different to non-device tree bus name. > > So, setting up the bus_id via aliases from device tree is the right > solution and other drivers do similar thing. > > Signed-off-by: Srinivas Kandagatla <[email protected]> Applied, thank you. _______________________________________________ devicetree-discuss mailing list [email protected] https://lists.ozlabs.org/listinfo/devicetree-discuss
