| Message ID | 20210115205819.19426-1-s-anna@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | dt-bindings: irqchip: Add #address-cells to PRUSS INTC | expand |
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@ti.com> > --- > 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@ti.com/ 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@ti.com/ > [3] https://patchwork.kernel.org/comment/23484523/ > > .../bindings/interrupt-controller/ti,pruss-intc.yaml | 6 ++++++ > 1 file changed, 6 insertions(+)
<<< No Message Collected >>>
On Mon, Jan 25, 2021 at 6:16 PM Suman Anna <s-anna@ti.com> wrote: > > Hi Rob, > > On 1/25/21 6:04 PM, Rob Herring wrote: > > 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@ti.com> > >> --- > >> 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. > > Thanks for the clarification. Yeah, I didn't add anything specifically, since > the expectation is interrupt-controller. Should I be adding that to this binding? No, either interrupt-controller.yaml needs to learn a new node name or your node names need to be fixed. I prefer the latter, but if you have more than 1 and don't have a unit-address (and in turn a 'reg' prop) we'd have to do the former. How are the interrupts controllers accessed if there's no way to address them? > > > > > 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@ti.com/ > > > > I've commented on this thread now in regards to #address-cells. > > I suppose I still need this patch to be defined to unblock the ICSSG nodes > getting accepted by our dts maintainer. Care to give your Reviewed-by for the > change? Or I can spin a v2 with $nodename added as well if that's needed too. No, I don't think you have to add #address-cells. We need to fix the warning in dtc. Rob
Hi Rob, On 1/25/21 8:47 PM, Rob Herring wrote: > On Mon, Jan 25, 2021 at 6:16 PM Suman Anna <s-anna@ti.com> wrote: >> >> Hi Rob, >> >> On 1/25/21 6:04 PM, Rob Herring wrote: >>> 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@ti.com> >>>> --- >>>> 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. >> >> Thanks for the clarification. Yeah, I didn't add anything specifically, since >> the expectation is interrupt-controller. Should I be adding that to this binding? > > No, either interrupt-controller.yaml needs to learn a new node name or > your node names need to be fixed. I prefer the latter, but if you have > more than 1 and don't have a unit-address (and in turn a 'reg' prop) > we'd have to do the former. How are the interrupts controllers > accessed if there's no way to address them? The PRUSS INTC will always have a unit-address, so we won't have the issues with having to maintain unique names. All my examples already have the nodes in the form 'interrupt-controller@<addr>'. Anyway, I will drop this patch, and post a new patch adding the $nodename to the binding. > >> >>> >>> 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@ti.com/ >>> >>> I've commented on this thread now in regards to #address-cells. >> >> I suppose I still need this patch to be defined to unblock the ICSSG nodes >> getting accepted by our dts maintainer. Care to give your Reviewed-by for the >> change? Or I can spin a v2 with $nodename added as well if that's needed too. > > No, I don't think you have to add #address-cells. We need to fix the > warning in dtc. Thank you for clarifying this. regards Suman
diff --git a/Documentation/devicetree/bindings/interrupt-controller/ti,pruss-intc.yaml b/Documentation/devicetree/bindings/interrupt-controller/ti,pruss-intc.yaml index c2ce215501a5..dcbfe08e997d 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/ti,pruss-intc.yaml +++ b/Documentation/devicetree/bindings/interrupt-controller/ti,pruss-intc.yaml @@ -79,6 +79,9 @@ properties: mapping and channels to host interrupts so through this property entire mapping is provided. + "#address-cells": + const: 0 + ti,irqs-reserved: $ref: /schemas/types.yaml#/definitions/uint8 description: | @@ -100,6 +103,7 @@ required: - interrupt-names - interrupt-controller - "#interrupt-cells" + - "#address-cells" additionalProperties: false @@ -123,6 +127,7 @@ examples: "host_intr6", "host_intr7"; interrupt-controller; #interrupt-cells = <3>; + #address-cells = <0>; }; }; @@ -142,6 +147,7 @@ examples: reg = <0x20000 0x2000>; interrupt-controller; #interrupt-cells = <3>; + #address-cells = <0>; interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>,
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@ti.com> --- 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? regards Suman [1] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20210115083003.27387-1-lokeshvutla@ti.com/ [2] https://patchwork.kernel.org/project/linux-arm-kernel/cover/20210114194805.8231-1-s-anna@ti.com/ [3] https://patchwork.kernel.org/comment/23484523/ .../bindings/interrupt-controller/ti,pruss-intc.yaml | 6 ++++++ 1 file changed, 6 insertions(+)