Intel's APIC family of interrupt controllers support local APIC (lapic) & I/O APIC (ioapic). Convert existing bindings for lapic & ioapic from text to YAML schema. Separate lapic & ioapic schemas. Addditionally, add description which was missing in text file and add few more required standard properties which were also missing in text file. Suggested-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Signed-off-by: Rahul Tanwar <rtanwar@xxxxxxxxxxxxx> --- .../intel,ce4100-ioapic.txt | 26 -------- .../intel,ce4100-ioapic.yaml | 60 +++++++++++++++++++ .../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 7d19f494f19a..000000000000 --- 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 000000000000..39ab8cdd19b4 --- /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 000000000000..55184cb49432 --- /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>; + }; -- 2.17.1
