[PATCH v1 2/2] regulator: rtmv20: Add DT-binding document for Richtek RTMV20

[cy_huang]

From: ChiYuan Huang <cy_huang@xxxxxxxxxxx>

Add DT-binding document for Richtek RTMV20

Signed-off-by: ChiYuan Huang <cy_huang@xxxxxxxxxxx>
---
 .../regulator/richtek,rtmv20-regulator.yaml        | 183 +++++++++++++++++++++
 1 file changed, 183 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/richtek,rtmv20-regulator.yaml

diff --git a/Documentation/devicetree/bindings/regulator/richtek,rtmv20-regulator.yaml b/Documentation/devicetree/bindings/regulator/richtek,rtmv20-regulator.yaml
new file mode 100644
index 00000000..0e906af
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/richtek,rtmv20-regulator.yaml
@@ -0,0 +1,183 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/richtek,rtmv20-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Richtek RTMV20 laser diode regulator
+
+maintainers:
+  - ChiYuan Huang <cy_huang@xxxxxxxxxxx>
+
+description: |
+  Richtek RTMV20 is a load switch current regulator that can supply up to 6A.
+  It is used to drive laser diode. There're two signals for chip controls
+  (Enable/Fail), Enable pin to turn chip on, and Fail pin as fault indication.
+  There're still four pins for camera control, two inputs (strobe and vsync),
+  the others for outputs (fsin1 and fsin2). Strobe input to start the current
+  supply, vsync input from IR camera, and fsin1/fsin2 output for the optional.
+
+properties:
+  compatible:
+    const: richtek,rtmv20
+
+  reg:
+    maxItems: 1
+
+  wakeup-source: true
+
+  interrupts-extend:
+    maxItems: 1
+
+  enable-gpio:
+    description: A connection of the 'enable' gpio line.
+    maxItems: 1
+
+  ld_pulse_delay:
+    description: |
+      load current pulse delay in microsecond after strobe pin pulse high.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 0
+    maximum: 100000
+    default: 0
+
+  ld_pulse_width:
+    description: |
+      Load current pulse width in microsecond after strobe pin pulse high.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 0
+    maximum: 10000
+    default: 1200
+
+  fsin1_delay:
+    description: |
+      Fsin1 pulse high delay in microsecond after vsync signal pulse high.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 0
+    maximum: 100000
+    default: 23000
+
+  fsin1_width:
+    description: |
+      Fsin1 pulse high width in microsecond after vsync signal pulse high.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 40
+    maximum: 10000
+    default: 160
+
+  fsin2_delay:
+    description: |
+      Fsin2 pulse high delay in microsecond after vsync signal pulse high.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 0
+    maximum: 100000
+    default: 23000
+
+  fsin2_width:
+    description: |
+      Fsin2 pulse high width in microsecond after vsync signal pulse high.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 40
+    maximum: 10000
+    default: 160
+
+  es_pulse_width:
+    description: Eye safety function pulse width limit in microsecond.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 0
+    maximum: 10000
+    default: 1200
+
+  es_ld_current:
+    description: Eye safety function load current limit in microamp.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 0
+    maximum: 6000000
+    default: 3000000
+
+  lbp_level:
+    description: Low battery protection level in microvolt.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 2400000
+    maximum: 3700000
+    default: 2700000
+
+  lbp_enable:
+    description: Low battery protection function enable control.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 0
+    maximum: 1
+    default: 0
+
+  strobe_polarity:
+    description: Strobe pin active polarity control.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 0
+    maximum: 1
+    default: 1
+
+  vsync_polarity:
+    description: Vsync pin active polarity control.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 0
+    maximum: 1
+    default: 1
+
+  fsin_enable:
+    description: Fsin function enable control.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 0
+    maximum: 1
+    default: 0
+
+  fsin_output:
+    description: Fsin function output control.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 0
+    maximum: 1
+    default: 0
+
+  es_enable:
+    description: Eye safety function enable control.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 0
+    maximum: 1
+    default: 0
+
+patternProperties:
+  "lsw":
+    type: object
+    $ref: "regulator.yaml#"
+
+required:
+  - compatible
+  - reg
+  - wakeup-source
+  - interrupts-extend
+  - enable-gpio
+  - lsw
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      rtmv20@34 {
+        compatible = "richtek,rtmv20";
+        reg = <0x34>;
+        wakeup-source;
+        interrupts-extend = <&gpio26 2 IRQ_TYPE_LEVEL_LOW>;
+        enable-gpio = <&gpio26 3 0>;
+
+        lsw {
+                regulator-name = "rtmv20,lsw";
+                regulator-min-microamp = <0>;
+                regulator-max-microamp = <6000000>;
+        };
+      };
+    };
+...
-- 
2.7.4