Hi Phil, > On Oct 6, 2016, at 23:16 , Phil Elwell <philip.j.elwell@xxxxxxxxx> wrote: > > On 06/10/2016 10:47, David Gibson wrote: >> On Fri, Sep 30, 2016 at 03:57:13PM +0200, Maxime Ripard wrote: >>> Hi, >>> >>> The device tree overlays are a great solution to the issue raised by >>> the bunch expandable boards we find everywhere these days, like the >>> Beaglebone, Raspberry Pi or CHIP. >>> >>> Although for now Linux is the only available tool that can deal with >>> overlays, some other components like bootloaders or user-space tools >>> might need to apply these overlays on top of a base device tree. >>> >>> To address these use cases, we introduce a new function to the libfdt, >>> fdt_overlay_apply, that does just that. >>> >>> You can find a test program here: http://code.bulix.org/792zum-99476?raw >>> >>> This is the last patches sent to U-boot, with the modifications >>> suggested by David, and the additional test cases. >>> >>> Let me know what you think! >>> Maxime >> Looking pretty good. There's a minor error in 3/4 which I've pointed >> out, it can be fixed in a followup. >> >> An error in the conditionals means it's trying to run some of the >> tests which require an overlay-aware dtc on even when that's not >> available - I adjusted 4/4 to correct that. >> >> It also hit build failures on Travis, because the compiler version >> there complains about local variables named 'index' shadowing the >> standard library function. I've corrected that with a followup patch. >> >> With that done, the whole lot has been committed to master. >> > Now that upstream libfdt can resolve and apply overlays we need a way > of generating them. I have a set of three patches from Pantelis that > add "plugin" support to dtc, together with two downstream (Raspberry Pi) > patches that fix an uninitialised memory reference and restrict > __local_fixups__ generation to overlays. > > Is there already a plan to get the enhanced dtc upstreamed? If so, can I > get the downstream fixes included? > David, my patchset is kept updated against mainline dtc. What are the remaining stumbling blocks in getting in accepted? > Phil Elwell Regards — Pantelis -- 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
