linux-kernel - [PATCH 2/3] dt: power: Add the bq2515x family dt bindings

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Message-ID: <20190930143137.21624-2-dmurphy@ti.com>
Date:   Mon, 30 Sep 2019 09:31:36 -0500
From:   Dan Murphy <dmurphy@...com>
To:     <sre@...nel.org>, <linux-pm@...r.kernel.org>
CC:     <linux-kernel@...r.kernel.org>, Dan Murphy <dmurphy@...com>
Subject: [PATCH 2/3] dt: power: Add the bq2515x family dt bindings

Add the bindings for the bq25150 and bq25155 500mA
 charging IC from Texas Instruments.

Datasheet:
http://www.ti.com/lit/ds/symlink/bq25150.pdf
http://www.ti.com/lit/ds/symlink/bq25155.pdf

Signed-off-by: Dan Murphy <dmurphy@...com>
---
 .../bindings/power/supply/bq2515x.txt         | 48 +++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/supply/bq2515x.txt

diff --git a/Documentation/devicetree/bindings/power/supply/bq2515x.txt b/Documentation/devicetree/bindings/power/supply/bq2515x.txt
new file mode 100644
index 000000000000..98203ab53d44
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/bq2515x.txt
@@ -0,0 +1,48 @@
+Binding for TI bq25150 500-mA Linear charger
+
+The BQ25150 is a highly integrated battery charge management IC that integrates
+the most common functions for wearable devices, namely a charger, an
+output voltage rail, ADC for battery and system monitoring, and
+push-button controller.
+
+Required Properties:
+	- compatible: Should contain one of the following:
+		"ti,bq25150"
+		"ti,bq25155"
+	- reg: int I2c address 0x6b
+	- #address-cells: 1;
+	- #size-cells: = 0;
+
+Optional Properties:
+	- ti,battery-regulation-voltage: integer, maximum charging voltage in mV.
+		Values range from 3600->4600mV
+	- ti,charge-current: integer, maximum charging current in mA.
+		Values range from 50->600mA
+	- reset-gpios: GPIO used for Master reset
+	- low-power-gpios: GPIO used for low power mode of IC.
+	- charge-enable-gpios: GPIO used to turn on and off charging.
+	- pg-gpios: GPIO used for connecting the bq2515x device PG (Power Good)
+		pin.  This pin should be used if possible as this is the
+		recommended way to obtain the charger's input PG state.
+		If this pin is not specified a software-based approach for PG
+		detection is used.
+
+Example
+bq25150@6b {
+	compatible = "ti,bq25150";
+	reg = <0x6b>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	pg-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
+	reset-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
+	low-power-gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>;
+	charge-enable-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
+
+	ti,charge-current = <300>;
+	ti,battery-regulation-voltage = <4200>;
+};
+
+Reference Datasheet:
+http://www.ti.com/lit/ds/symlink/bq25150.pdf
+http://www.ti.com/lit/ds/symlink/bq25155.pdf
-- 
2.22.0.214.g8dca754b1e