Hi Linus, [Updated the devicetree mailing list e-mail address] On Monday 30 September 2013 01:20:46 Linus Walleij wrote: > On Sun, Sep 29, 2013 at 8:49 AM, Laurent Pinchart wrote: > > On Friday 27 September 2013 16:08:31 Linus Walleij wrote: > >> Can't you just locate the node using of_find_node_by_path() > >> or whatever and then use this: > >> int of_update_property(struct device_node *np, struct property *newprop)? > > > > Where can I do that ? I need the PFC/GPIO devices to have been probed, so > > board init isn't an option, but I also need the device to be enabled not > > to have been probed yet. > > > > One option would be to use a bus notifier to find out when the PFC/GPIO > > devices are available, and extend of_update_property() with a notification > > mechanism (either generic, or specific to the enabled propery) to detect > > when a device gets enabled and probe it. > > Argh that sounds awfully complicated... > > I would consider doing this right inside the PCF/GPIO driver right at the > end of its probe function. As it is related to pins anyway... or is that too > ugly? As a reminder, we need to decide whether to register an SDHI (SD controller) device or a WiFi module device, and thus configure pinmuxing appropriately, based on the state of a GPIO connected to a user-accessible switch. This behaviour is board-specific, not SoC-specific. That's why I believe the code should be in board code. -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
