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[net-next,1/2] dt-bindings: net: qcom,ipa: add firmware-name property

Message ID 20210416130850.1970247-2-elder@linaro.org (mailing list archive)
State New
Headers show
Series net: ipa: allow different firmware names | expand

Commit Message

Alex Elder April 16, 2021, 1:08 p.m. UTC
Add a new optional firmware-name property to the IPA DT node.  It
is used only if the modem is not doing early initialization (i.e.,
if the modem-init property is not present).  Its value is the name
of the firmware file to use; if it's not specified, a default name
("ipa_fws.mdt") is used.

Signed-off-by: Alex Elder <elder@linaro.org>
 .../devicetree/bindings/net/qcom,ipa.yaml     | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
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diff --git a/Documentation/devicetree/bindings/net/qcom,ipa.yaml b/Documentation/devicetree/bindings/net/qcom,ipa.yaml
index da5212e693e91..7443490d4cc6d 100644
--- a/Documentation/devicetree/bindings/net/qcom,ipa.yaml
+++ b/Documentation/devicetree/bindings/net/qcom,ipa.yaml
@@ -125,6 +125,14 @@  properties:
       the firmware passed to Trust Zone for authentication.  Required
       when Trust Zone (not the modem) performs early initialization.
+  firmware-name:
+    $ref: /schemas/types.yaml#/definitions/string
+    description:
+      If present, name (or relative path) of the file within the
+      firmware search path containing the firmware image used when
+      initializing IPA hardware.  Optional, and only used when
+      Trust Zone performs early initialization.
   - compatible
   - iommus
@@ -134,12 +142,23 @@  required:
   - interconnects
   - qcom,smem-states
+# Either modem-init is present, or memory-region must be present.
   - required:
       - modem-init
   - required:
       - memory-region
+# If memory-region is present, firmware-name may optionally be present.
+# But if modem-init is present, firmware-name must not be present.
+  required:
+    - modem-init
+  not:
+    required:
+      - firmware-name
 additionalProperties: false