linux-kernel - [PATCH 2/4] dt-bindings: mfd: Add bindings for Silicon Mitus SM5703 MFD

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Message-Id: <20220414170616.23319-3-markuss.broks@gmail.com>
Date:   Thu, 14 Apr 2022 20:06:13 +0300
From:   Markuss Broks <markuss.broks@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     phone-devel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht,
        Markuss Broks <markuss.broks@...il.com>,
        Lee Jones <lee.jones@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, devicetree@...r.kernel.org
Subject: [PATCH 2/4] dt-bindings: mfd: Add bindings for Silicon Mitus SM5703 MFD

This patch adds device-tree bindings for the Silicon Mitus
SM5703 MFD.

Signed-off-by: Markuss Broks <markuss.broks@...il.com>
---
 .../bindings/mfd/siliconmitus,sm5703.yaml     | 96 +++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/siliconmitus,sm5703.yaml

diff --git a/Documentation/devicetree/bindings/mfd/siliconmitus,sm5703.yaml b/Documentation/devicetree/bindings/mfd/siliconmitus,sm5703.yaml
new file mode 100644
index 000000000000..cf72bee7a679
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/siliconmitus,sm5703.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/siliconmitus,sm5703.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Silicon Mitus multi-function device bindings
+
+maintainers:
+  - Markuss Broks <markuss.broks@...il.com>
+
+description: |
+  Silicon Mitus SM5703 is a multi-function device, that consists of several
+  modules, designed for a mobile phone use. It consists of
+  LDO, Buck, USBLDO and VBUS regulators, a flash LED driver, a MUIC unit,
+  a fuel gauge and a battery charger circuit. The MUIC and Fuel-Gauge units
+  are separate from the main MFD, having their own i2c lines, while the
+  LED driver, regulators and charger are sharing the main i2c bus of the MFD.
+
+properties:
+  compatible:
+    const:
+      - siliconmitus,sm5703-mfd
+
+  reg:
+    description:
+      I2C slave address.
+    maxItems: 1
+
+  regulators:
+    $ref: ../regulator/siliconmitus,sm5703-regulator.yaml
+    description:
+      List of child nodes that specify the regulators.
+
+  reset-gpio:
+    description:
+      GPIO which is connected to the MRSTB pin.
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - regulators
+
+additionalProperties: false
+
+examples:
+  - |
+  i2c {
+    #address-cells = <1>;
+    #size-cells = <0>;
+
+    mfd@49 {
+      compatible = "siliconmitus,sm5703-mfd";
+      reg = <0x49>;
+
+      reset-gpio = <&msmgpio 24 GPIO_ACTIVE_HIGH>;
+      pinctrl-0 = <&mrstb_default>;
+
+      regulator {
+        compatible = "siliconmitus,sm5703-regulator";
+
+        regulators {
+          sm5703_ldo1: ldo1 {
+            regulator-min-microvolt = <2800000>;
+            regulator-max-microvolt = <2800000>;
+          };
+
+          sm5703_ldo2: ldo2 {
+            regulator-min-microvolt = <1500000>;
+            regulator-max-microvolt = <3300000>;
+          };
+
+          sm5703_ldo3: ldo3 {
+            regulator-min-microvolt = <3300000>;
+            regulator-max-microvolt = <3300000>;
+          };
+
+          sm5703_usbldo1: usbldo1 {
+            regulator-min-microvolt = <4800000>;
+            regulator-max-microvolt = <4800000>;
+          };
+
+          sm5703_usbldo2: usbldo2 {
+            regulator-min-microvolt = <4800000>;
+            regulator-max-microvolt = <4800000>;
+          };
+
+          sm5703_vbus: vbus {
+            regulator-min-microvolt = <5000000>;
+            regulator-max-microvolt = <5000000>;
+          };
+        };
+      };
+    };
+  };
-- 
2.35.1