linux-kernel - [PATCH v5 1/6] dt-bindings: mfd: Document STM32 low power timer bindings

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Message-ID: <20200331083146.10462-2-benjamin.gaignard@st.com>
Date:   Tue, 31 Mar 2020 10:31:41 +0200
From:   Benjamin Gaignard <benjamin.gaignard@...com>
To:     <fabrice.gasnier@...com>, <lee.jones@...aro.org>,
        <robh+dt@...nel.org>, <mark.rutland@....com>,
        <mcoquelin.stm32@...il.com>, <alexandre.torgue@...com>,
        <daniel.lezcano@...aro.org>, <tglx@...utronix.de>
CC:     <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Benjamin Gaignard <benjamin.gaignard@...com>
Subject: [PATCH v5 1/6] dt-bindings: mfd: Document STM32 low power timer bindings

Add a subnode to STM low power timer bindings to support timer driver

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...com>
---
version 5:
- the previous has been acked-by Rob but since I have docummented
  interrupts and interrupt-names properties I haven't applied it here.

version 4:
- change compatible and subnode names
- document wakeup-source property

 .../devicetree/bindings/mfd/st,stm32-lptimer.yaml  | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/st,stm32-lptimer.yaml b/Documentation/devicetree/bindings/mfd/st,stm32-lptimer.yaml
index 1a4cc5f3fb33..2809c4a186c4 100644
--- a/Documentation/devicetree/bindings/mfd/st,stm32-lptimer.yaml
+++ b/Documentation/devicetree/bindings/mfd/st,stm32-lptimer.yaml
@@ -33,12 +33,28 @@ properties:
     items:
       - const: mux
 
+  interrupts:
+    items:
+      - description: timer event interrupt
+      - description: wake up interrupt
+    minItems: 1
+    maxItems: 2
+
+  interrupt-names:
+    items:
+      - const: event
+      - const: wakeup
+    minItems: 1
+    maxItems: 2
+
   "#address-cells":
     const: 1
 
   "#size-cells":
     const: 0
 
+  wakeup-source: true
+
   pwm:
     type: object
 
@@ -81,6 +97,16 @@ patternProperties:
     required:
       - compatible
 
+  timer:
+    type: object
+
+    properties:
+      compatible:
+        const: st,stm32-lptimer-timer
+
+    required:
+      - compatible
+
 required:
   - "#address-cells"
   - "#size-cells"
@@ -94,11 +120,15 @@ additionalProperties: false
 examples:
   - |
     #include <dt-bindings/clock/stm32mp1-clks.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
     timer@...02400 {
       compatible = "st,stm32-lptimer";
       reg = <0x40002400 0x400>;
       clocks = <&timer_clk>;
       clock-names = "mux";
+      interrupt-names = "event", "wakeup";
+      interrupts-extended = <&intc GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>,
+                            <&exti 47 IRQ_TYPE_LEVEL_HIGH>;
       #address-cells = <1>;
       #size-cells = <0>;
 
@@ -115,6 +145,10 @@ examples:
       counter {
         compatible = "st,stm32-lptimer-counter";
       };
+
+      timer {
+        compatible = "st,stm32-lptimer-timer";
+      };
     };
 
 ...
-- 
2.15.0