linux-kernel - [PATCH v5 3/4] dt-bindings: sram: sunxi-sram: Add regulators child

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Message-Id: <20221208084127.17443-4-samuel@sholland.org>
Date:   Thu,  8 Dec 2022 02:41:26 -0600
From:   Samuel Holland <samuel@...lland.org>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>
Cc:     Chen-Yu Tsai <wens@...e.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andre Przywara <andre.przywara@....com>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Rob Herring <robh+dt@...nel.org>, linux-sunxi@...ts.linux.dev,
        linux-arm-kernel@...ts.infradead.org,
        Samuel Holland <samuel@...lland.org>,
        Andrew Lunn <andrew@...n.ch>, Heiko Stuebner <heiko@...ech.de>,
        Maxime Ripard <mripard@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v5 3/4] dt-bindings: sram: sunxi-sram: Add regulators child

Some sunxi SoCs have in-package regulators controlled by a register in
the system control MMIO block. Allow a child node for this regulator
device in addition to SRAM child nodes.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: Samuel Holland <samuel@...lland.org>
---

(no changes since v4)

Changes in v4:
 - Remove unevaluatedProperties from regulators schema reference

Changes in v3:
 - Require the regulators node to have a unit address
 - Reference the regulator schema from the SRAM controller schema
 - Move the system LDOs example to the SRAM controller schema
 - Reorder the patches so the example passes validation

Changes in v2:
 - New patch for v2

 .../allwinner,sun4i-a10-system-control.yaml   | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml b/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml
index 98a7dc7f467d..c487ac9521e9 100644
--- a/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml
+++ b/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml
@@ -56,6 +56,9 @@ properties:
   ranges: true
 
 patternProperties:
+  "^regulators@[0-9a-f]+$":
+    $ref: /schemas/regulator/allwinner,sun20i-d1-system-ldos.yaml#
+
   "^sram@[a-z0-9]+":
     type: object
 
@@ -130,3 +133,28 @@ examples:
         };
       };
     };
+
+  - |
+    syscon@...0000 {
+      compatible = "allwinner,sun20i-d1-system-control";
+      reg = <0x3000000 0x1000>;
+      ranges;
+      #address-cells = <1>;
+      #size-cells = <1>;
+
+      regulators@...0150 {
+        compatible = "allwinner,sun20i-d1-system-ldos";
+        reg = <0x3000150 0x4>;
+
+        reg_ldoa: ldoa {
+          regulator-min-microvolt = <1800000>;
+          regulator-max-microvolt = <1800000>;
+        };
+
+        reg_ldob: ldob {
+          regulator-name = "vcc-dram";
+          regulator-min-microvolt = <1500000>;
+          regulator-max-microvolt = <1500000>;
+        };
+      };
+    };
-- 
2.37.4