The following commit has been merged into the x86/apic branch of tip:
Commit-ID: 2b822f474621bb2f4f21dd6dae6900e2ccca7e95
Gitweb: https://git.kernel.org/tip/2b822f474621bb2f4f21dd6dae6900e2ccca7e95
Author: Rahul Tanwar <rtanwar@xxxxxxxxxxxxx>
AuthorDate: Thu, 24 Nov 2022 16:41:40 +08:00
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Fri, 02 Dec 2022 14:57:13 +01:00
dt-bindings: x86: apic: Convert Intel's APIC bindings to YAML schema
The DT bindings for X86 local APIC (lapic) and I/O APIC (ioapic) are
outdated. Rework them:
- Convert the bindings for lapic and ioapic from text to YAML schema.
- Separate lapic & ioapic schemas.
- Add missing but required standard properties
- Add missing descriptions
Suggested-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Rahul Tanwar <rtanwar@xxxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20221124084143.21841-2-rtanwar@xxxxxxxxxxxxx
---
Documentation/devicetree/bindings/interrupt-controller/intel,ce4100-ioapic.txt | 26 --------------------------
Documentation/devicetree/bindings/interrupt-controller/intel,ce4100-ioapic.yaml | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Documentation/devicetree/bindings/interrupt-controller/intel,ce4100-lapic.yaml | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 117 insertions(+), 26 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/interrupt-controller/intel,ce4100-ioapic.txt
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/intel,ce4100-ioapic.yaml
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/intel,ce4100-lapic.yaml
diff --git a/Documentation/devicetree/bindings/interrupt-controller/intel,ce4100-ioapic.txt b/Documentation/devicetree/bindings/interrupt-controller/intel,ce4100-ioapic.txt
deleted file mode 100644
index 7d19f49..0000000
--- a/Documentation/devicetree/bindings/interrupt-controller/intel,ce4100-ioapic.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-Interrupt chips
----------------
-
-* Intel I/O Advanced Programmable Interrupt Controller (IO APIC)
-
- Required properties:
- --------------------
- compatible = "intel,ce4100-ioapic";
- #interrupt-cells = <2>;
-
- Device's interrupt property:
-
- interrupts = <P S>;
-
- The first number (P) represents the interrupt pin which is wired to the
- IO APIC. The second number (S) represents the sense of interrupt which
- should be configured and can be one of:
- 0 - Edge Rising
- 1 - Level Low
- 2 - Level High
- 3 - Edge Falling
-
-* Local APIC
- Required property:
-
- compatible = "intel,ce4100-lapic";
diff --git a/Documentation/devicetree/bindings/interrupt-controller/intel,ce4100-ioapic.yaml b/Documentation/devicetree/bindings/interrupt-controller/intel,ce4100-ioapic.yaml
new file mode 100644
index 0000000..39ab8cd
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/intel,ce4100-ioapic.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/interrupt-controller/intel,ce4100-ioapic.yaml#";
+$schema: "http://devicetree.org/meta-schemas/core.yaml#";
+
+title: Intel I/O Advanced Programmable Interrupt Controller (IO APIC)
+
+maintainers:
+ - Rahul Tanwar <rtanwar@xxxxxxxxxxxxx>
+
+description: |
+ Intel's Advanced Programmable Interrupt Controller (APIC) is a
+ family of interrupt controllers. The APIC is a split
+ architecture design, with a local component (LAPIC) integrated
+ into the processor itself and an external I/O APIC. Local APIC
+ (lapic) receives interrupts from the processor's interrupt pins,
+ from internal sources and from an external I/O APIC (ioapic).
+ And it sends these to the processor core for handling.
+ See [1] Chapter 8 for more details.
+
+ Many of the Intel's generic devices like hpet, ioapic, lapic have
+ the ce4100 name in their compatible property names because they
+ first appeared in CE4100 SoC.
+
+ This schema defines bindings for I/O APIC interrupt controller.
+
+ [1] https://pdos.csail.mit.edu/6.828/2008/readings/ia32/IA32-3A.pdf
+
+properties:
+ compatible:
+ const: intel,ce4100-ioapic
+
+ reg:
+ maxItems: 1
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 2
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupt-controller
+ - '#interrupt-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ ioapic1: interrupt-controller@fec00000 {
+ compatible = "intel,ce4100-ioapic";
+ reg = <0xfec00000 0x1000>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
diff --git a/Documentation/devicetree/bindings/interrupt-controller/intel,ce4100-lapic.yaml b/Documentation/devicetree/bindings/interrupt-controller/intel,ce4100-lapic.yaml
new file mode 100644
index 0000000..55184cb
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/intel,ce4100-lapic.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/interrupt-controller/intel,ce4100-lapic.yaml#";
+$schema: "http://devicetree.org/meta-schemas/core.yaml#";
+
+title: Intel Local Advanced Programmable Interrupt Controller (LAPIC)
+
+maintainers:
+ - Rahul Tanwar <rtanwar@xxxxxxxxxxxxx>
+
+description: |
+ Intel's Advanced Programmable Interrupt Controller (APIC) is a
+ family of interrupt controllers. The APIC is a split
+ architecture design, with a local component (LAPIC) integrated
+ into the processor itself and an external I/O APIC. Local APIC
+ (lapic) receives interrupts from the processor's interrupt pins,
+ from internal sources and from an external I/O APIC (ioapic).
+ And it sends these to the processor core for handling.
+ See [1] Chapter 8 for more details.
+
+ Many of the Intel's generic devices like hpet, ioapic, lapic have
+ the ce4100 name in their compatible property names because they
+ first appeared in CE4100 SoC.
+
+ This schema defines bindings for local APIC interrupt controller.
+
+ [1] https://pdos.csail.mit.edu/6.828/2008/readings/ia32/IA32-3A.pdf
+
+properties:
+ compatible:
+ const: intel,ce4100-lapic
+
+ reg:
+ maxItems: 1
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 2
+
+required:
+ - compatible
+ - reg
+ - interrupt-controller
+ - '#interrupt-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ lapic0: interrupt-controller@fee00000 {
+ compatible = "intel,ce4100-lapic";
+ reg = <0xfee00000 0x1000>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
|