linux-kernel - [PATCH v3 03/32] dt-bindings: firmware: google,gs101-acpm-ipc: add PMIC child node

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Message-Id: <20250403-s2mpg10-v3-3-b542b3505e68@linaro.org>
Date: Thu, 03 Apr 2025 09:58:55 +0100
From: André Draszik <andre.draszik@...aro.org>
To: Krzysztof Kozlowski <krzk@...nel.org>, Lee Jones <lee@...nel.org>, 
 Rob Herring <robh@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
 Sylwester Nawrocki <s.nawrocki@...sung.com>, 
 Chanwoo Choi <cw00.choi@...sung.com>, Alim Akhtar <alim.akhtar@...sung.com>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Russell King <linux@...linux.org.uk>, 
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, 
 Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: Peter Griffin <peter.griffin@...aro.org>, 
 Tudor Ambarus <tudor.ambarus@...aro.org>, 
 Will McVicker <willmcvicker@...gle.com>, kernel-team@...roid.com, 
 linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-clk@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-rtc@...r.kernel.org, 
 André Draszik <andre.draszik@...aro.org>
Subject: [PATCH v3 03/32] dt-bindings: firmware: google,gs101-acpm-ipc: add
 PMIC child node

The PMIC is supposed to be a child of ACPM, add it here to describe the
connection.

Signed-off-by: André Draszik <andre.draszik@...aro.org>

---
v3:
- drop '$ref' and 'unevaluatedProperties' from pmic subnode, use
  'additionalProperties' instead (Krzysztof)
- add some regulators to examples since s2mpg10 requires them as of v3
---
 .../bindings/firmware/google,gs101-acpm-ipc.yaml   | 35 ++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml b/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml
index 2cdad1bbae73bb1795eccf47e1a58e270acd022c..9785aac3b5f34955bbfe2718eec48581d050954f 100644
--- a/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml
+++ b/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml
@@ -27,6 +27,15 @@ properties:
   mboxes:
     maxItems: 1
 
+  pmic:
+    description: Child node describing the main PMIC.
+    type: object
+    additionalProperties: true
+
+    properties:
+      compatible:
+        const: samsung,s2mpg10-pmic
+
   shmem:
     description:
       List of phandle pointing to the shared memory (SHM) area. The memory
@@ -43,8 +52,34 @@ additionalProperties: false
 
 examples:
   - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
     power-management {
         compatible = "google,gs101-acpm-ipc";
         mboxes = <&ap2apm_mailbox>;
         shmem = <&apm_sram>;
+
+        pmic {
+            compatible = "samsung,s2mpg10-pmic";
+            interrupts-extended = <&gpa0 6 IRQ_TYPE_LEVEL_LOW>;
+
+            regulators {
+                LDO1 {
+                    regulator-name = "vdd_ldo1";
+                    regulator-min-microvolt = <700000>;
+                    regulator-max-microvolt = <1300000>;
+                    regulator-always-on;
+                };
+
+                // ...
+
+                BUCK1 {
+                    regulator-name = "vdd_mif";
+                    regulator-min-microvolt = <450000>;
+                    regulator-max-microvolt = <1300000>;
+                    regulator-always-on;
+                    regulator-boot-on;
+                };
+            };
+        };
     };

-- 
2.49.0.472.ge94155a9ec-goog