dt-binding: remoteproc: wcnss: Allow describing smd edge

Allow the associated smd edge to be described within the wcnss
remoteproc node. This creates a bond between the remoteproc and the
associated smd channels and devices, showing the interaction between the
two parts and provides both a natural reference to the other.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,wcnss-pil.txt b/Documentation/devicetree/bindings/remoteproc/qcom,wcnss-pil.txt
index 0d2361ebe3d739e85c9a59cfa4e9441f30c57177..d420f84ddfb06efd8ae6fd4ac0851ef345f252b1 100644 (file)
--- a/Documentation/devicetree/bindings/remoteproc/qcom,wcnss-pil.txt
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,wcnss-pil.txt
@@ -60,8 +60,8 @@ on the Qualcomm WCNSS core.
                    see ../reserved-memory/reserved-memory.txt
 
 = SUBNODES
-A single subnode of the WCNSS PIL describes the attached rf module and its
-resource dependencies.
+A required subnode of the WCNSS PIL is used to describe the attached rf module
+and its resource dependencies. It is described by the following properties:
 
 - compatible:
        Usage: required
@@ -90,6 +90,11 @@ resource dependencies.
        Definition: reference to the regulators to be held on behalf of the
                    booting of the WCNSS core
 
+
+The wcnss node can also have an subnode named "smd-edge" that describes the SMD
+edge, channels and devices related to the WCNSS.
+See ../soc/qcom/qcom,smd.txt for details on how to describe the SMD edge.
+
 = EXAMPLE
 The following example describes the resources needed to boot control the WCNSS,
 with attached WCN3680, as it is commonly found on MSM8974 boards.
@@ -129,4 +134,25 @@ pronto@fb204000 {
                vddpa-supply = <&pm8941_l19>;
                vdddig-supply = <&pm8941_s3>;
        };
+
+       smd-edge {
+               interrupts = <0 142 1>;
+
+               qcom,ipc = <&apcs 8 17>;
+               qcom,smd-edge = <6>;
+               qcom,remote-pid = <4>;
+
+               label = "pronto";
+
+               wcnss {
+                       compatible = "qcom,wcnss";
+                       qcom,smd-channels = "WCNSS_CTRL";
+
+                       qcom,mmio = <&pronto>;
+
+                       bt {
+                               compatible = "qcom,wcnss-bt";
+                       };
+               };
+       };
 };