[PATCH v3 2/2] dt-bindings: mfd: maxim,max77686: convert to dtschema

From: Krzysztof Kozlowski
Date: Thu Nov 25 2021 - 02:51:01 EST

Convert the MFD part of Maxim MAX77686 PMIC to DT schema format.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>

---

Changes since v2:
1. Rebased.

Changes since v1:
1. Add Rob's tag.
2. Correct title prefix.
3. Extend example with LDO22.
---
.../devicetree/bindings/mfd/max77686.txt | 26 ----
.../bindings/mfd/maxim,max77686.yaml | 132 ++++++++++++++++++
MAINTAINERS | 1 -
3 files changed, 132 insertions(+), 27 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/mfd/max77686.txt
create mode 100644 Documentation/devicetree/bindings/mfd/maxim,max77686.yaml

diff --git a/Documentation/devicetree/bindings/mfd/max77686.txt b/Documentation/devicetree/bindings/mfd/max77686.txt
deleted file mode 100644
index 4447d074894a..000000000000
--- a/Documentation/devicetree/bindings/mfd/max77686.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-Maxim MAX77686 multi-function device
-
-MAX77686 is a Multifunction device with PMIC, RTC and Charger on chip. It is
-interfaced to host controller using i2c interface. PMIC and Charger submodules
-are addressed using same i2c slave address whereas RTC submodule uses
-different i2c slave address,presently for which we are statically creating i2c
-client while probing.This document describes the binding for mfd device and
-PMIC submodule.
-
-Bindings for the built-in 32k clock generator block and
-regulators are defined in ../clk/maxim,max77686.txt and
-../regulator/max77686.txt respectively.
-
-Required properties:
-- compatible : Must be "maxim,max77686";
-- reg : Specifies the i2c slave address of PMIC block.
-- interrupts : This i2c device has an IRQ line connected to the main SoC.
-
-Example:
-
- max77686: pmic@9 {
- compatible = "maxim,max77686";
- interrupt-parent = <&wakeup_eint>;
- interrupts = <26 IRQ_TYPE_LEVEL_LOW>;
- reg = <0x09>;
- };
diff --git a/Documentation/devicetree/bindings/mfd/maxim,max77686.yaml b/Documentation/devicetree/bindings/mfd/maxim,max77686.yaml
new file mode 100644
index 000000000000..859655a789c3
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/maxim,max77686.yaml
@@ -0,0 +1,132 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/maxim,max77686.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX77686 Power Management IC
+
+maintainers:
+ - Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
+ - Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
+
+description: |
+ This is a part of device tree bindings for Maxim MAX77686 Power Management
+ Integrated Circuit (PMIC).
+
+ The Maxim MAX77686 is a Power Management IC which includes voltage and
+ current regulators, RTC and clock outputs.
+
+ The MAX77686 provides three 32.768khz clock outputs that can be controlled
+ (gated/ungated) over I2C. The clock IDs are defined as preprocessor macros
+ in dt-bindings/clock/maxim,max77686.h.
+
+properties:
+ compatible:
+ const: maxim,max77686
+
+ '#clock-cells':
+ const: 1
+
+ interrupts:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+ voltage-regulators:
+ $ref: ../regulator/maxim,max77686.yaml
+ description:
+ List of child nodes that specify the regulators.
+
+ wakeup-source: true
+
+required:
+ - compatible
+ - '#clock-cells'
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ max77686: pmic@9 {
+ compatible = "maxim,max77686";
+ reg = <0x09>;
+
+ interrupt-parent = <&gpx0>;
+ interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
+ pinctrl-0 = <&max77686_irq>;
+ pinctrl-names = "default";
+ wakeup-source;
+ #clock-cells = <1>;
+
+ voltage-regulators {
+ LDO1 {
+ regulator-name = "VALIVE_1.0V_AP";
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1000000>;
+ regulator-always-on;
+ };
+
+ LDO2 {
+ regulator-name = "VM1M2_1.2V_AP";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-always-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
+ };
+
+ // ...
+
+ LDO22 {
+ regulator-name = "VMEM_VDD_2.8V";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ maxim,ena-gpios = <&gpk0 2 GPIO_ACTIVE_HIGH>;
+ };
+
+ // ...
+
+ BUCK1 {
+ regulator-name = "VDD_MIF";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ BUCK2 {
+ regulator-name = "VDD_ARM";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
+ };
+
+ // ...
+
+ BUCK9 {
+ regulator-name = "CAM_ISP_CORE_1.2V";
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1200000>;
+ maxim,ena-gpios = <&gpm0 3 GPIO_ACTIVE_HIGH>;
+ };
+ };
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index aa12b807d3f5..244697b870ac 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11660,7 +11660,6 @@ M: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
M: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
L: linux-kernel@xxxxxxxxxxxxxxx
S: Supported
-F: Documentation/devicetree/bindings/*/max77686.txt
F: Documentation/devicetree/bindings/*/maxim,max77686.yaml
F: Documentation/devicetree/bindings/clock/maxim,max77686.txt
F: Documentation/devicetree/bindings/mfd/max14577.txt
--
2.32.0