Le 11/04/2016 20:51, Andrew Lunn a écrit : > On Mon, Apr 11, 2016 at 09:39:02PM +0300, Sergei Shtylyov wrote: >> Hello. >> >> On 04/11/2016 09:19 PM, Andrew Lunn wrote: >> >>>>> The code you are deleting would of ignored the flags in the gpio >>>>> property, i.e. active low. >>>> >>>> Hm, you're right -- I forgot about that... :-/ >>>> >>>>> The new code in the previous patch does >>>>> however take the flags into account. Did you check if there are any >>>>> device trees which have flags, which were never used, but are now >>>>> going to be used and thus break... >>>> >>>> Checked this now and found out arch/arm/boot/dts/ar91-vinco.dts. >>>> Looks like it needs to be fixed indeed... >>>> >>> And this is where it gets tricky. You are breaking backwards >>> compatibility by now respecting the flag. An old DT blob is not going >>> to work. >> >> Do we care that much about the DT blobs that are just *wrong*? > > Wrong, but currently works. > >>> You potentially need to add a new property and deprecate the old one. >> >> I would like to avoid that... > > You will need the agreement from the at91-vinco maintainer.
If the at91-vinco has to be modified, you have my agreement that it can be modified. Bye, -- Nicolas Ferre
