linux-kernel - [PATCH v2] dt-bindings: remoteproc: pru: Add Interrupt property

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Date:   Mon, 14 Aug 2023 15:21:41 +0530
From:   MD Danish Anwar <danishanwar@...com>
To:     Suman Anna <s-anna@...com>, Conor Dooley <conor+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-remoteproc@...r.kernel.org>, <linux-omap@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <vigneshr@...com>,
        <srk@...com>, <nm@...com>
Subject: [PATCH v2] dt-bindings: remoteproc: pru: Add Interrupt property

Add interrupts and interrupt-names protperties for PRU and RTU cores.

Signed-off-by: MD Danish Anwar <danishanwar@...com>
---
Changes from v1 to v2:
*) Added reference of ti,pruss-intc.yaml schema in the description of
   interrupts property as suggested by Conor.
*) Rebased on latest next-20230809 linux-next.

v1: https://lore.kernel.org/all/20230807110836.2612730-1-danishanwar@ti.com/

 .../bindings/remoteproc/ti,pru-rproc.yaml     | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/Documentation/devicetree/bindings/remoteproc/ti,pru-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/ti,pru-rproc.yaml
index cd55d80137f7..fc81ba2ad2da 100644
--- a/Documentation/devicetree/bindings/remoteproc/ti,pru-rproc.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/ti,pru-rproc.yaml
@@ -66,6 +66,17 @@ properties:
       Should contain the name of the default firmware image
       file located on the firmware search path.
 
+  interrupts:
+    maxItems: 1
+    description:
+      Interrupt specifiers enable the virtio/rpmsg communication between MPU
+      and the PRU/RTU cores. For the values of the interrupt cells please refer
+      to interrupt-controller/ti,pruss-intc.yaml schema.
+
+  interrupt-names:
+    items:
+      - const: vring
+
 if:
   properties:
     compatible:
@@ -171,6 +182,9 @@ examples:
               <0x22400 0x100>;
         reg-names = "iram", "control", "debug";
         firmware-name = "am65x-pru0_0-fw";
+        interrupt-parent = <&icssg0_intc>;
+        interrupts = <16 2 2>;
+        interrupt-names = "vring";
       };
 
       rtu0_0: rtu@...0 {
@@ -180,6 +194,9 @@ examples:
               <0x23400 0x100>;
         reg-names = "iram", "control", "debug";
         firmware-name = "am65x-rtu0_0-fw";
+        interrupt-parent = <&icssg0_intc>;
+        interrupts = <20 4 4>;
+        interrupt-names = "vring";
       };
 
       tx_pru0_0: txpru@...0 {
@@ -198,6 +215,9 @@ examples:
               <0x24400 0x100>;
         reg-names = "iram", "control", "debug";
         firmware-name = "am65x-pru0_1-fw";
+        interrupt-parent = <&icssg0_intc>;
+        interrupts = <18 3 3>;
+        interrupt-names = "vring";
       };
 
       rtu0_1: rtu@...0 {
@@ -207,6 +227,9 @@ examples:
               <0x23c00 0x100>;
         reg-names = "iram", "control", "debug";
         firmware-name = "am65x-rtu0_1-fw";
+        interrupt-parent = <&icssg0_intc>;
+        interrupts = <22 5 5>;
+        interrupt-names = "vring";
       };
 
       tx_pru0_1: txpru@...0 {
-- 
2.34.1