On Fri, Jan 15, 2021 at 02:58:19PM -0600, Suman Anna wrote: > The '#address-cells' property looks to be a required property for > interrupt controller nodes as indicated by a warning message seen > when building dtbs with W=2. Adding the property to the PRUSS INTC > dts nodes though fails the dtbs_check. Add this property to the > PRUSS INTC binding to make it compliant with both dtbs_check and > building dtbs. > > Signed-off-by: Suman Anna <s-anna@xxxxxx> > --- > Hi Rob, > > This patch is also part of our effort to get rid of the warnings seen > around interrupt providers on TI K3 dtbs [1]. I needed this in the PRUSS > INTC bindings to not get a warning with dtbs_check while also ensuring > no warnings while building dtbs with W=2. > > I would have expected the '#address-cells' requirement to be inherited > automatically. And looking through the schema files, I actually do not > see the interrupt-controller.yaml included automatically anywhere. You > had asked us to drop the inclusion in this binding in our first version > with YAML [3]. Am I missing something, and how do we ensure that this > is enforced automatically for everyone? interrupt-controller.yaml is applied to any node named 'interrupt-controller'. More generally, if 'compatible' is not present, then we look at $nodename for the default 'select'. In your case, you didn't name the node appropriately. We can't check this in interrupt-controller.yaml because #address-cells is not always 0. GICv3 is one notable exception. > > regards > Suman > > [1] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20210115083003.27387-1-lokeshvutla@xxxxxx/ I've commented on this thread now in regards to #address-cells. Rob > [2] https://patchwork.kernel.org/project/linux-arm-kernel/cover/20210114194805.8231-1-s-anna@xxxxxx/ > [3] https://patchwork.kernel.org/comment/23484523/ > > .../bindings/interrupt-controller/ti,pruss-intc.yaml | 6 ++++++ > 1 file changed, 6 insertions(+)
