On Wed, Aug 14, 2013 at 01:30:17PM +0800, Nicolin Chen wrote: > Hi Shwan, > > On Wed, Aug 14, 2013 at 11:27:00AM +0800, Shawn Guo wrote: > > I do not think we need this general compatible string. Device tree > > compatible should be specific. > > So I should just use 'fsl,<chip>-spdif" and list all <chip>-spdif > in compatible list? > > I added 'fsl,fsl-spdif' just for those not-in-list chips, Vybrid > for example. So you think I should add all the possible chips to > the list? But what if some chip I don't know right now that also > uses this spdif controller? Add them to the list later? We only need to maintain those versions that require different programming model in the list. For example, if S/PDIF on Vybrid is completely compatible with imx6q one and uses the exactly same programming model, we do not need to maintain a compatible string for Vybrid S/PDIF at all. Instead, we only need to have something like below in Vybrid dts file, and S/PDIF driver will just work for it. compatible = "fsl,vf600-spdif", "fsl,imx6q-spdif"; Shawn -- 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