Linux-ARM-Kernel Archive on lore.kernel.org

* [PATCH v8 1/9] dt-bindings: mfd: mt6397: Add MT6392 PMIC
From: Luca Leonardo Scorcia @ 2026-06-20 19:56 UTC (permalink / raw)
  To: linux-mediatek
  Cc: Luca Leonardo Scorcia, Dmitry Torokhov, Rob Herring,
	Krzysztof Kozlowski, Conor Dooley, Sen Chu, Sean Wang,
	Macpaul Lin, Lee Jones, Matthias Brugger,
	AngeloGioacchino Del Regno, Liam Girdwood, Mark Brown,
	Linus Walleij, Val Packett, Julien Massot, Louis-Alexis Eyraud,
	Fabien Parent, Akari Tsuyukusa, Chen Zhong, linux-input,
	devicetree, linux-kernel, linux-pm, linux-arm-kernel, linux-gpio
In-Reply-To: <20260620200032.334192-1-l.scorcia@gmail.com>

Describe the MT6392 PMIC and its RTC and regulator devices. This device
is mostly based on MT6323 with some similarities to MT6397 and is usually
found on boards using the MT8516/MT8167 SoC.

Signed-off-by: Luca Leonardo Scorcia <l.scorcia@gmail.com>
---
 .../bindings/mfd/mediatek,mt6397.yaml         | 74 +++++++++++++++++++
 1 file changed, 74 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/mediatek,mt6397.yaml b/Documentation/devicetree/bindings/mfd/mediatek,mt6397.yaml
index 3cbc0dc12c31..927df823d640 100644
--- a/Documentation/devicetree/bindings/mfd/mediatek,mt6397.yaml
+++ b/Documentation/devicetree/bindings/mfd/mediatek,mt6397.yaml
@@ -40,6 +40,10 @@ properties:
           - mediatek,mt6358
           - mediatek,mt6359
           - mediatek,mt6397
+      - items:
+          - enum:
+              - mediatek,mt6392
+          - const: mediatek,mt6323
       - items:
           - enum:
               - mediatek,mt6366
@@ -72,6 +76,10 @@ properties:
               - mediatek,mt6331-rtc
               - mediatek,mt6358-rtc
               - mediatek,mt6397-rtc
+          - items:
+              - enum:
+                  - mediatek,mt6392-rtc
+              - const: mediatek,mt6323-rtc
           - items:
               - enum:
                   - mediatek,mt6359-rtc
@@ -99,6 +107,7 @@ properties:
               - mediatek,mt6331-regulator
               - mediatek,mt6358-regulator
               - mediatek,mt6359-regulator
+              - mediatek,mt6392-regulator
               - mediatek,mt6397-regulator
           - items:
               - enum:
@@ -663,3 +672,68 @@ examples:
             compatible = "mediatek,mt6397-rtc";
         };
     };
+
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    pmic {
+        compatible = "mediatek,mt6392", "mediatek,mt6323";
+
+        interrupts-extended = <&pio 28 IRQ_TYPE_LEVEL_HIGH>;
+        interrupt-controller;
+        #interrupt-cells = <2>;
+
+        keys {
+          compatible = "mediatek,mt6392-keys";
+
+          key-power {
+            linux,keycodes = <KEY_POWER>;
+            wakeup-source;
+          };
+
+          key-home {
+            linux,keycodes = <KEY_HOME>;
+            wakeup-source;
+          };
+        };
+
+        pinctrl {
+          compatible = "mediatek,mt6392-pinctrl";
+
+          gpio-controller;
+          #gpio-cells = <2>;
+        };
+
+        regulators {
+          compatible = "mediatek,mt6392-regulator";
+
+          vproc {
+            regulator-allowed-modes = <0 1>;
+            regulator-initial-mode = <0>;
+            regulator-min-microvolt = < 700000>;
+            regulator-max-microvolt = <1350000>;
+            regulator-always-on;
+            regulator-boot-on;
+          };
+
+          // ...
+
+          vadc18 {
+            regulator-allowed-modes = <0 2>;
+            regulator-initial-mode = <0>;
+            regulator-min-microvolt = <1800000>;
+            regulator-max-microvolt = <1800000>;
+            regulator-boot-on;
+            regulator-always-on;
+          };
+
+          vefuse {
+            regulator-min-microvolt = <1800000>;
+            regulator-max-microvolt = <2000000>;
+          };
+        };
+
+        rtc {
+          compatible = "mediatek,mt6392-rtc", "mediatek,mt6323-rtc";
+        };
+    };
-- 
2.43.0



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