linux-kernel - [PATCH v3 1/4] dt-bindings: power: reset: Convert mode-.* properties to array

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Message-ID: <20240515-arm-psci-system_reset2-vendor-reboots-v3-1-16dd4f9c0ab4@quicinc.com>
Date: Wed, 15 May 2024 16:09:44 -0700
From: Elliot Berman <quic_eberman@...cinc.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio
	<konrad.dybcio@...aro.org>,
        Sebastian Reichel <sre@...nel.org>, Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, Vinod Koul <vkoul@...nel.org>,
        Andy Yan
	<andy.yan@...k-chips.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        "Mark
 Rutland" <mark.rutland@....com>,
        Bartosz Golaszewski
	<bartosz.golaszewski@...aro.org>
CC: Satya Durga Srinivasu Prabhala <quic_satyap@...cinc.com>,
        Melody Olvera
	<quic_molvera@...cinc.com>,
        Shivendra Pratap <quic_spratap@...cinc.com>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Florian Fainelli
	<florian.fainelli@...adcom.com>,
        <linux-pm@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        Elliot Berman <quic_eberman@...cinc.com>
Subject: [PATCH v3 1/4] dt-bindings: power: reset: Convert mode-.*
 properties to array

PSCI reboot mode will map a mode name to multiple magic values instead
of just one. Convert the mode-.* property to an array. Users of the
reboot-mode schema will need to specify the maxItems of the mode-.*
properties. Existing users will all be 1.

Signed-off-by: Elliot Berman <quic_eberman@...cinc.com>
---
 .../devicetree/bindings/power/reset/nvmem-reboot-mode.yaml |  4 ++++
 .../devicetree/bindings/power/reset/qcom,pon.yaml          |  4 ++++
 .../devicetree/bindings/power/reset/reboot-mode.yaml       | 14 ++++++++++++--
 .../bindings/power/reset/syscon-reboot-mode.yaml           |  4 ++++
 4 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/power/reset/nvmem-reboot-mode.yaml b/Documentation/devicetree/bindings/power/reset/nvmem-reboot-mode.yaml
index 627f8a6078c2..03b3b9be36de 100644
--- a/Documentation/devicetree/bindings/power/reset/nvmem-reboot-mode.yaml
+++ b/Documentation/devicetree/bindings/power/reset/nvmem-reboot-mode.yaml
@@ -30,6 +30,10 @@ properties:
 
 allOf:
   - $ref: reboot-mode.yaml#
+  - patternProperties:
+      "^mode-.*$":
+        items:
+          maxItems: 1
 
 required:
   - compatible
diff --git a/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml b/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
index fc8105a7b9b2..95964e04d5d6 100644
--- a/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
+++ b/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
@@ -68,6 +68,10 @@ allOf:
     then:
       allOf:
         - $ref: reboot-mode.yaml#
+        - patternProperties:
+            "^mode-.*$":
+              items:
+                maxItems: 1
 
       properties:
         reg:
diff --git a/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml b/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
index ad0a0b95cec1..feb70609bb5f 100644
--- a/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
+++ b/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
@@ -28,13 +28,23 @@ description: |
 
 properties:
   mode-normal:
-    $ref: /schemas/types.yaml#/definitions/uint32
+    $ref: "#/patternProperties/^mode-.*$"
     description:
       Default value to set on a reboot if no command was provided.
 
 patternProperties:
   "^mode-.*$":
-    $ref: /schemas/types.yaml#/definitions/uint32
+    $ref: /schemas/types.yaml#/definitions/uint32-matrix
+    # Limit to 1 outer cell, e.g. no mode-normal = <0>, <1>;
+    maxItems: 1
+    # Note: to reference this schema, the allOf should include hint about
+    # maxItems for the inner cell
+    # allOf:
+    # - $ref: /schemas/power/reset/reboot-mode.yaml#
+    # - patternProperties:
+    #     "^mode-.*$":
+    #       items:
+    #         maxItems: 1
 
 additionalProperties: true
 
diff --git a/Documentation/devicetree/bindings/power/reset/syscon-reboot-mode.yaml b/Documentation/devicetree/bindings/power/reset/syscon-reboot-mode.yaml
index b6acff199cde..bf6d68355e7f 100644
--- a/Documentation/devicetree/bindings/power/reset/syscon-reboot-mode.yaml
+++ b/Documentation/devicetree/bindings/power/reset/syscon-reboot-mode.yaml
@@ -31,6 +31,10 @@ properties:
 
 allOf:
   - $ref: reboot-mode.yaml#
+  - patternProperties:
+      "^mode-.*$":
+        items:
+          maxItems: 1
 
 unevaluatedProperties: false
 

-- 
2.34.1