[PATCH 3/4] dt-bindings: remoteproc: qcom: q6v5: Update memory region requirements

[Sibi Sankar]

Update the bindings to reflect the addition of the new modem metadata
carveout on SoCs that use memory protection before transferring control
to the remote Q6.

Signed-off-by: Sibi Sankar <quic_sibis@xxxxxxxxxxx>
---

https://lore.kernel.org/all/20220511161602.117772-7-sireeshkodali1@xxxxxxxxx/
Sireesh had started the conversion to yaml a while back. I'll take over
the conversion from v2.

 .../bindings/remoteproc/qcom,q6v5.txt         | 29 +++++++++++++++++--
 1 file changed, 26 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
index d0ebd16ee0e1..89772d026363 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
@@ -104,8 +104,24 @@ on the Qualcomm Hexagon core.
 		    must be "mss_restart", "pdc_reset" for the modem
 		    sub-system on SDM845 SoCs
 
-For devices where the mba and mpss sub-nodes are not specified, mba/mpss region
-should be referenced as follows:
+For devices with the compatible strings below and where the mba, mpss and
+metadata sub-nodes are not specified, mba/mpss/mdata region should be
+referenced as follows:
+  "qcom,msm8996-mss-pil"
+  "qcom,msm8998-mss-pil"
+  "qcom,sdm845-mss-pil"
+- memory-region:
+	Usage: required
+	Value type: <phandle>
+	Definition: reference to mba, mpss and metadata reserved-memory regions.
+
+For devices with the compatible strings below and where the mba and mpss
+sub-nodes are not specified, mba/mpss region should be referenced as follows:
+  "qcom,q6v5-pil",
+  "qcom,ipq8074-wcss-pil"
+  "qcom,qcs404-wcss-pil"
+  "qcom,msm8916-mss-pil",
+  "qcom,msm8974-mss-pil"
 - memory-region:
 	Usage: required
 	Value type: <phandle>
@@ -198,7 +214,14 @@ on platforms which do not have TrustZone.
 
 = SUBNODES:
 The Hexagon node must contain two subnodes, named "mba" and "mpss" representing
-the memory regions used by the Hexagon firmware. Each sub-node must contain:
+the memory regions used by the Hexagon firmware. For devices with the compatible
+string below, an additional third subnode named "metadata" representing the modem
+metadata memory region should also be present.
+  "qcom,msm8996-mss-pil"
+  "qcom,msm8998-mss-pil"
+  "qcom,sdm845-mss-pil"
+
+Each sub-node must contain:
 
 - memory-region:
 	Usage: required
-- 
2.17.1