soc: qcom: apr: Don't use reg for domain id

The reg property represents the address and size on the bus that a
device lives, but for APR the parent is a rpmsg bus, which does not have
numerical addresses. Simply defining #address/#size-cells to 1 and 0,
respectively, to silence the compiler is not an appropriate solution.

Replace the use of "reg" with an APR specific property.

Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

2 files changed, 4 insertions, 4 deletions

diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt
index bcc612cc7423..db501269f47b 100644
--- a/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt
@@ -9,7 +9,7 @@ used for audio/voice services on the QDSP.
         Value type: <stringlist>
         Definition: must be "qcom,apr-v<VERSION-NUMBER>", example "qcom,apr-v2"
 
-- reg
+- qcom,apr-domain
         Usage: required
         Value type: <u32>
         Definition: Destination processor ID.
@@ -49,9 +49,9 @@ by the individual bindings for the specific service
 The following example represents a QDSP based sound card on a MSM8996 device
 which uses apr as communication between Apps and QDSP.
 
-        apr@4 {
+        apr {
                 compatible = "qcom,apr-v2";
-                reg = <APR_DOMAIN_ADSP>;
+                qcom,apr-domain = <APR_DOMAIN_ADSP>;
 
                 q6core@3 {
                         compatible = "qcom,q6core";
diff --git a/drivers/soc/qcom/apr.c b/drivers/soc/qcom/apr.c
index 039e3aa6f5e0..4fcc32420c47 100644
--- a/drivers/soc/qcom/apr.c
+++ b/drivers/soc/qcom/apr.c
@@ -328,7 +328,7 @@ static int apr_probe(struct rpmsg_device *rpdev)
         if (!apr)
                 return -ENOMEM;
 
-        ret = of_property_read_u32(dev->of_node, "reg", &apr->dest_domain_id);
+        ret = of_property_read_u32(dev->of_node, "qcom,apr-domain", &apr->dest_domain_id);
         if (ret) {
                 dev_err(dev, "APR Domain ID not specified in DT\n");
                 return ret;