linux-kernel - [PATCH 1/3] dt-bindings: sram: sunxi-sram: Add regulators child

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Date: Sat, 22 Jun 2024 23:07:29 +0800
From: Chen-Yu Tsai <wens@...nel.org>
To: Jernej Skrabec <jernej.skrabec@...il.com>,
	Samuel Holland <samuel@...lland.org>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>
Cc: devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...ts.linux.dev,
	linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Chen-Yu Tsai <wens@...e.org>
Subject: [PATCH 1/3] dt-bindings: sram: sunxi-sram: Add regulators child

From: Samuel Holland <samuel@...lland.org>

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.

Signed-off-by: Samuel Holland <samuel@...lland.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 .../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 cf07b8f787a6..d9322704f358 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-f0-9]+":
     $ref: /schemas/sram/sram.yaml#
     unevaluatedProperties: false
@@ -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>;
+        };
+      };
+    };
-- 
2.39.2