Add the bindings for the bq256xx series of battery charging ICs.
Datasheets:
- https://www.ti.com/lit/ds/symlink/bq25600.pdf
- https://www.ti.com/lit/ds/symlink/bq25601.pdf
- https://www.ti.com/lit/ds/symlink/bq25600d.pdf
- https://www.ti.com/lit/ds/symlink/bq25601d.pdf
- https://www.ti.com/lit/ds/symlink/bq25611d.pdf
- https://www.ti.com/lit/ds/symlink/bq25618.pdf
- https://www.ti.com/lit/ds/symlink/bq25619.pdf
Signed-off-by: Ricardo Rivera-Matos
---
v4 - documents monitored-battery and interrupts, fixes example for
ti,watchdog-timeout-ms
.../bindings/power/supply/bq256xx.yaml| 110 ++
1 file changed, 110 insertions(+)
create mode 100644 Documentation/devicetree/bindings/power/supply/bq256xx.yaml
diff --git a/Documentation/devicetree/bindings/power/supply/bq256xx.yaml
b/Documentation/devicetree/bindings/power/supply/bq256xx.yaml
new file mode 100644
index ..18b54783e11a
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/bq256xx.yaml
@@ -0,0 +1,110 @@
+# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+# Copyright (C) 2020 Texas Instruments Incorporated
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/power/supply/bq256xx.yaml#;
+$schema: "http://devicetree.org/meta-schemas/core.yaml#;
+
+title: TI bq256xx Switch Mode Buck Charger
+
+maintainers:
+ - Ricardo Rivera-Matos
+
+description: |
+ The bq256xx devices are a family of highly-integrated battery charge
+ management and system power management ICs for single cell Li-ion and Li-
+ polymer batteries.
+
+ Datasheets:
+- https://www.ti.com/lit/ds/symlink/bq25600.pdf
+- https://www.ti.com/lit/ds/symlink/bq25601.pdf
+- https://www.ti.com/lit/ds/symlink/bq25600d.pdf
+- https://www.ti.com/lit/ds/symlink/bq25601d.pdf
+- https://www.ti.com/lit/ds/symlink/bq25611d.pdf
+- https://www.ti.com/lit/ds/symlink/bq25618.pdf
+- https://www.ti.com/lit/ds/symlink/bq25619.pdf
+
+properties:
+ compatible:
+enum:
+ - ti,bq25600
+ - ti,bq25601
+ - ti,bq25600d
+ - ti,bq25601d
+ - ti,bq25611d
+ - ti,bq25618
+ - ti,bq25619
+
+ reg:
+maxItems: 1
+
+ ti,watchdog-timeout-ms:
+$ref: /schemas/types.yaml#/definitions/uint32
+default: 0
+description: |
+ Watchdog timer in ms. 0 (default) disables the watchdog
+minimum: 0
+maximum: 16
+enum: [ 0, 4, 8, 16]
+
+ input-voltage-limit-microvolt:
+description: |
+ Minimum input voltage limit in µV with a 10 µV step
+minimum: 390
+maximum: 540
+
+ input-current-limit-microamp:
+description: |
+ Maximum input current limit in µA with a 10 µA step
+minimum: 10
+maximum: 320
+
+ monitored-battery:
+$ref: /schemas/types.yaml#/definitions/phandle
+description: phandle to the battery node being monitored
+
+ interrupts:
+maxItems: 1
+description: |
+ Interrupt sends an active low, 256 μs pulse to host to report the charger
+ device status and faults.
+
+required:
+ - compatible
+ - reg
+ - monitored-battery
+
+additionalProperties: false
+
+examples:
+ - |
+bat: battery {
+ compatible = "simple-battery";
+ constant-charge-current-max-microamp = <204>;
+ constant-charge-voltage-max-microvolt = <4352000>;
+ precharge-current-microamp = <18>;
+ charge-term-current-microamp = <18>;
+};
+#include
+#include
+i2c {
+
+ clock-frequency = <40>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ charger@6b {
+compatible = "ti,bq25601";
+reg = <0x6b>;
+monitored-battery = <>;
+
+interrupt-parent = <>;
+interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
+ti,watchdog-timeout-ms = <4>;
+
+input-voltage-limit-microvolt = <450>;
+input-current-limit-microamp = <240>;
+ };
+};
+...
--
2.28.0
