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Message-ID: <20201009144112.3007-1-dmurphy@ti.com>
Date: Fri, 9 Oct 2020 09:41:11 -0500
From: Dan Murphy <dmurphy@...com>
To: <sre@...nel.org>
CC: <linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<devicetree@...r.kernel.org>, <robh@...nel.org>,
Dan Murphy <dmurphy@...com>,
Ricardo Rivera-Matos <r-rivera-matos@...com>
Subject: [PATCH v4 1/2] dt-bindings: power: Add the bq25790 dt bindings
Add the bindings for the bq25790.
Reviewed-by: Rob Herring <robh@...nel.org>
Signed-off-by: Ricardo Rivera-Matos <r-rivera-matos@...com>
Signed-off-by: Dan Murphy <dmurphy@...com>
---
.../bindings/power/supply/bq25790.yaml | 95 +++++++++++++++++++
1 file changed, 95 insertions(+)
create mode 100644 Documentation/devicetree/bindings/power/supply/bq25790.yaml
diff --git a/Documentation/devicetree/bindings/power/supply/bq25790.yaml b/Documentation/devicetree/bindings/power/supply/bq25790.yaml
new file mode 100644
index 000000000000..6d9178ce5a2b
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/bq25790.yaml
@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2020 Texas Instruments Incorporated
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/power/supply/bq25790.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: TI BQ25790 Switch Mode Buck-Boost Charger
+
+maintainers:
+ - Dan Murphy <dmurphy@...com>
+
+description: |
+ BQ25790 is a highly integrated switch-mode buck-boost charger for 1-4 cell
+ Li-ion batteries and Li-polymer batteries. The device charges a battery from a
+ wide range of input sources including legacy USB adapters to high voltage USB
+ PD adapters and traditional barrel adapters.
+
+allOf:
+ - $ref: power-supply.yaml#
+
+properties:
+ compatible:
+ enum:
+ - ti,bq25790
+ - ti,bq25792
+
+ reg:
+ maxItems: 1
+
+ ti,watchdog-timeout-ms:
+ default: 0
+ description: |
+ Watchdog timer in milli seconds. 0 (default) disables the watchdog.
+ minimum: 0
+ maximum: 160000
+ enum: [ 0, 500, 1000, 2000, 20000, 40000, 80000, 160000]
+
+ input-voltage-limit-microvolt:
+ description: |
+ Minimum input voltage limit in micro volts with a 100000 micro volt step.
+ minimum: 3600000
+ maximum: 22000000
+
+ input-current-limit-microamp:
+ description: |
+ Maximum input current limit in micro amps with a 100000 micro amp step.
+ minimum: 100000
+ maximum: 3300000
+
+ 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
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ bat: battery {
+ compatible = "simple-battery";
+ constant-charge-current-max-microamp = <2000000>;
+ constant-charge-voltage-max-microvolt = <4200000>;
+ precharge-current-microamp = <160000>;
+ charge-term-current-microamp = <160000>;
+ };
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ bq25790: charger@6b {
+ compatible = "ti,bq25790";
+ reg = <0x6b>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
+ ti,watchdog-timeout-ms = <2000>;
+ input-current-limit-microamp = <3000000>;
+ input-voltage-limit-microvolt = <4500000>;
+ monitored-battery = <&bat>;
+ };
+ };
+
+...
--
2.28.0.585.ge1cfff676549
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