diff mbox series

[v3,1/3] dt-bindings: timer: atmel,at91sam9260-pit: convert to yaml

Message ID 20230530090758.1652329-2-claudiu.beznea@microchip.com
State New
Headers show
Series dt-bindings: timer: Microchip AT91 convert to YAML | expand

Commit Message

Claudiu Beznea May 30, 2023, 9:07 a.m. UTC
Convert Microchip AT91 PIT bindings to YAML. Along with it clocks and
clock-names bindings were added as the drivers needs it to ensure proper
hardware functionality.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
 .../devicetree/bindings/arm/atmel-sysregs.txt | 12 ---
 .../bindings/timer/atmel,at91sam9260-pit.yaml | 99 +++++++++++++++++++
 2 files changed, 99 insertions(+), 12 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.yaml

Comments

Krzysztof Kozlowski May 31, 2023, 8:55 a.m. UTC | #1
On 30/05/2023 11:07, Claudiu Beznea wrote:
> Convert Microchip AT91 PIT bindings to YAML. Along with it clocks and
> clock-names bindings were added as the drivers needs it to ensure proper
> hardware functionality.
> 
> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
> ---
>  .../devicetree/bindings/arm/atmel-sysregs.txt | 12 ---
>  .../bindings/timer/atmel,at91sam9260-pit.yaml | 99 +++++++++++++++++++
>  2 files changed, 99 insertions(+), 12 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.yaml
> 
> diff --git a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
> index 67a66bf74895..54d3f586403e 100644
> --- a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
> +++ b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
> @@ -4,18 +4,6 @@ Chipid required properties:
>  - compatible: Should be "atmel,sama5d2-chipid" or "microchip,sama7g5-chipid"
>  - reg : Should contain registers location and length
>  
> -PIT Timer required properties:
> -- compatible: Should be "atmel,at91sam9260-pit"
> -- reg: Should contain registers location and length
> -- interrupts: Should contain interrupt for the PIT which is the IRQ line
> -  shared across all System Controller members.
> -
> -PIT64B Timer required properties:
> -- compatible: Should be "microchip,sam9x60-pit64b"
> -- reg: Should contain registers location and length
> -- interrupts: Should contain interrupt for PIT64B timer
> -- clocks: Should contain the available clock sources for PIT64B timer.
> -
>  System Timer (ST) required properties:
>  - compatible: Should be "atmel,at91rm9200-st", "syscon", "simple-mfd"
>  - reg: Should contain registers location and length
> diff --git a/Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.yaml b/Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.yaml
> new file mode 100644
> index 000000000000..d0f3f80db4cb
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.yaml
> @@ -0,0 +1,99 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/timer/atmel,at91sam9260-pit.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Microchip AT91 Periodic Interval Timer (PIT)
> +
> +maintainers:
> +  - Claudiu Beznea <claudiu.beznea@microchip.com>
> +
> +description:
> +  Microchip AT91 periodic interval timer provides the operating system scheduler
> +  interrupt. It is designed to offer maximum accuracy and efficient management,
> +  even for systems with long response time.
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - const: microchip,sama7g5-pit64b
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
index 67a66bf74895..54d3f586403e 100644
--- a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
@@ -4,18 +4,6 @@  Chipid required properties:
 - compatible: Should be "atmel,sama5d2-chipid" or "microchip,sama7g5-chipid"
 - reg : Should contain registers location and length
 
-PIT Timer required properties:
-- compatible: Should be "atmel,at91sam9260-pit"
-- reg: Should contain registers location and length
-- interrupts: Should contain interrupt for the PIT which is the IRQ line
-  shared across all System Controller members.
-
-PIT64B Timer required properties:
-- compatible: Should be "microchip,sam9x60-pit64b"
-- reg: Should contain registers location and length
-- interrupts: Should contain interrupt for PIT64B timer
-- clocks: Should contain the available clock sources for PIT64B timer.
-
 System Timer (ST) required properties:
 - compatible: Should be "atmel,at91rm9200-st", "syscon", "simple-mfd"
 - reg: Should contain registers location and length
diff --git a/Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.yaml b/Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.yaml
new file mode 100644
index 000000000000..d0f3f80db4cb
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/atmel,at91sam9260-pit.yaml
@@ -0,0 +1,99 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/atmel,at91sam9260-pit.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip AT91 Periodic Interval Timer (PIT)
+
+maintainers:
+  - Claudiu Beznea <claudiu.beznea@microchip.com>
+
+description:
+  Microchip AT91 periodic interval timer provides the operating system scheduler
+  interrupt. It is designed to offer maximum accuracy and efficient management,
+  even for systems with long response time.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: microchip,sama7g5-pit64b
+          - const: microchip,sam9x60-pit64b
+      - items:
+          enum:
+            - atmel,at91sam9260-pit
+            - microchip,sam9x60-pit64b
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: atmel,at91sam9260-pit
+    then:
+      properties:
+        interrupts:
+          description:
+            Shared interrupt between all system controller members (power management
+            controller, watchdog, PIT, reset controller, real-time timer, real-time
+            clock, memory controller, debug unit, system timer).
+        clocks:
+          maxItems: 1
+
+    else:
+      properties:
+        clocks:
+          minItems: 2
+        clock-names:
+          items:
+            - const: pclk
+            - const: gclk
+      required:
+        - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    /* AT91RM9200 */
+    #include <dt-bindings/clock/at91.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    pit: timer@fffffe40 {
+        compatible = "atmel,at91sam9260-pit";
+        reg = <0xfffffe40 0x10>;
+        interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
+        clocks = <&pmc PMC_TYPE_CORE PMC_MCK>;
+    };
+
+  - |
+    /* SAM9X60 */
+    #include <dt-bindings/clock/at91.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    pit64b: timer@f0028000 {
+        compatible = "microchip,sam9x60-pit64b";
+        reg = <0xf0028000 0x100>;
+        interrupts = <37 IRQ_TYPE_LEVEL_HIGH 7>;
+        clocks = <&pmc PMC_TYPE_PERIPHERAL 37>, <&pmc PMC_TYPE_GCK 37>;
+        clock-names = "pclk", "gclk";
+    };
+
+...