linux-kernel - [PATCH net-next 2/2] dt-bindings: net: qcom,ipa: restate a requirement

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Date:   Thu, 10 Nov 2022 13:56:18 -0600
From:   Alex Elder <elder@...aro.org>
To:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com
Cc:     andersson@...nel.org, konrad.dybcio@...aro.org, agross@...nel.org,
        elder@...nel.org, linux-arm-msm@...r.kernel.org,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH net-next 2/2] dt-bindings: net: qcom,ipa: restate a requirement

Either the AP or modem loads GSI firmware.  If the modem-init
property is present, the modem loads it.  Otherwise, the AP loads
it, and in that case the memory-region property must be defined.

Currently this requirement is expressed as one or the other of the
modem-init or the memory-region property being required.  But it's
harmless for the memory-region to be present if the modem is loading
firmware (it'll just be ignored).

Restate the requirement so that the memory-region property is
required only if modem-init is not present.

Signed-off-by: Alex Elder <elder@...aro.org>
---
 Documentation/devicetree/bindings/net/qcom,ipa.yaml | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/qcom,ipa.yaml b/Documentation/devicetree/bindings/net/qcom,ipa.yaml
index 2d253ef488188..e752b76192df0 100644
--- a/Documentation/devicetree/bindings/net/qcom,ipa.yaml
+++ b/Documentation/devicetree/bindings/net/qcom,ipa.yaml
@@ -155,12 +155,15 @@ required:
   - interconnects
   - qcom,smem-states
 
-# Either modem-init is present, or memory-region must be present.
-oneOf:
-  - required:
+# If modem-init is not present, the AP loads GSI firmware, and
+# memory-region must be specified
+if:
+  not:
+    required:
       - modem-init
-  - required:
-      - memory-region
+then:
+  required:
+    - memory-region
 
 additionalProperties: false
 
-- 
2.34.1