于 2017年10月5日 GMT+08:00 下午2:58:01, Kalle Valo <kvalo@xxxxxxxxxxxxxx> 写到: >Icenowy Zheng <icenowy@xxxxxxx> writes: > >> 于 2017年10月4日 GMT+08:00 下午6:11:45, Maxime Ripard >> <maxime.ripard@xxxxxxxxxxxxxxxxxx> 写到: >>>On Wed, Oct 04, 2017 at 10:02:48AM +0000, Arend van Spriel wrote: >>>> On 10/4/2017 11:03 AM, Icenowy Zheng wrote: >>>> > >>>> > >>>> > 于 2017年10月4日 GMT+08:00 下午5:02:17, Kalle Valo ><kvalo@xxxxxxxxxxxxxx> >>>写到: >>>> > > Icenowy Zheng <icenowy@xxxxxxx> writes: >>>> > > >>>> > > > Allwinner XR819 is a SDIO Wi-Fi chip, which has the >>>functionality to >>>> > > use >>>> > > > an out-of-band interrupt pin instead of SDIO in-band >interrupt. >>>> > > > >>>> > > > Add the device tree binding of this chip, in order to make it >>>> > > possible >>>> > > > to add this interrupt pin to device trees. >>>> > > > >>>> > > > Signed-off-by: Icenowy Zheng <icenowy@xxxxxxx> >>>> > > > Acked-by: Rob Herring <robh@xxxxxxxxxx> >>>> > > > --- >>>> > > > Changes in v3: >>>> > > > - Renames the node name. >>>> > > > - Adds ACK from Rob. >>>> > > > Changes in v2: >>>> > > > - Removed status property in example. >>>> > > > - Added required property reg. >>>> > > > >>>> > > > .../bindings/net/wireless/allwinner,xr819.txt | 38 >>>> > > ++++++++++++++++++++++ >>>> > > > 1 file changed, 38 insertions(+) >>>> > > > create mode 100644 >>>> > > >>>Documentation/devicetree/bindings/net/wireless/allwinner,xr819.txt >>>> > > >>>> > > Like I asked already last time, AFAICS there is no upstream >xr819 >>>> > > wireless driver in drivers/net/wireless directory. Do we still >>>accept >>>> > > bindings like this for out-of-tree drivers? >>>> > >>>> > See esp8089. >>>> > >>>> > There's also no in-tree driver for it. >>>> >>>> The question is whether we should. The above might be a precedent, >>>but it >>>> may not necessarily be the way to go. The commit message for >esp8089 >>>seems >>>> to hint that there is intent to have an in-tree driver: >>>> >>>> """ >>>> Note that at this point there only is an out of tree driver for >>>this >>>> hardware, there is no clear timeline / path for merging this. >>>Still >>>> I believe it would be good to specify the binding for this in >>>tree >>>> now, so that any future migration to an in tree driver will not >>>cause >>>> compatiblity issues. >>>> >>>> Cc: Icenowy Zheng <icenowy@xxxxxxxx> >>>> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx> >>>> Signed-off-by: Rob Herring <robh@xxxxxxxxxx> >>>> """ >>>> >>>> Regardless the bindings are in principle independent of the kernel >>>and just >>>> describing hardware. I think there have been discussions to move >the >>>> bindings to their own repository, but apparently it was decided >>>otherwise. >>> >>>Yeah, I guess especially how it could be merged with the cw1200 >driver >>>would be very relevant to that commit log. >> >> The cw1200 driver seems to still have some legacy platform >> data. Maybe they should also be convert to DT. >> (Or maybe compatible = "allwinner,xr819" is enough, as >> xr819 is a specified variant of cw1200 family) > >Ah, so the upstream cw1200 driver supports xr819? Has anyone tested >that? Or does cw1200 more changes than just adding the DT support? I think the cw1200 driver currently lacks maintain, and the product is already discontinued by ST-E. > >-- >Kalle Valo > >_______________________________________________ >linux-arm-kernel mailing list >linux-arm-kernel@xxxxxxxxxxxxxxxxxxx >http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
