Messages in this thread | | | Date | Wed, 14 May 2014 06:18:58 -0700 | From | Guenter Roeck <> | Subject | Re: [PATCH v4 2/8] OF: Introduce DT overlay support. |
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On 05/14/2014 06:03 AM, Geert Uytterhoeven wrote: > On Wed, May 14, 2014 at 12:08 PM, Grant Likely > <grant.likely@secretlab.ca> wrote: >>> +config OF_OVERLAY >>> + bool "OF overlay support" >>> + depends on OF >>> + select OF_DYNAMIC >>> + select OF_DEVICE >>> + select OF_RESOLVE >>> + help >>> + OpenFirmware overlay support. Allows you to modify on runtime the >>> + live tree using overlays. >> >> Should not be a user-visable option. Drivers using it should select it > > Why not? It's up to the (final) user to use it, or not. > >> or otherwise cause it to be enabled. > > Why should this be driver-specific? Shouldn't this just work with all drivers? >
It does once enabled.
I think what Grant refers to is that there has to be a driver which implements the actual overlay insertion and removal (ie calls the new API functions), and that the Kconfig option for this driver should select OF_OVERLAY instead of depending on it.
Guenter
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