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Message-ID: <20190125110445.GA29297@localhost.localdomain>
Date: Fri, 25 Jan 2019 13:04:45 +0200
From: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
To: mazziesaccount@...il.com, matti.vaittinen@...rohmeurope.com
Cc: heikki.haikola@...rohmeurope.com, mikko.mutanen@...rohmeurope.com,
lee.jones@...aro.org, robh+dt@...nel.org, mark.rutland@....com,
broonie@...nel.org, gregkh@...uxfoundation.org, rafael@...nel.org,
mturquette@...libre.com, sboyd@...nel.org,
linus.walleij@...aro.org, bgolaszewski@...libre.com,
sre@...nel.org, lgirdwood@...il.com, a.zummo@...ertech.it,
alexandre.belloni@...tlin.com, wim@...ux-watchdog.org,
linux@...ck-us.net, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
linux-gpio@...r.kernel.org, linux-pm@...r.kernel.org,
linux-rtc@...r.kernel.org, linux-watchdog@...r.kernel.org
Subject: [RFC PATCH v2 06/10] devicetree: bindings: Document first ROHM
BD70528 bindings
Document bindings for regulators (3 bucks, 3 LDOs and 2 LED
drivers) and 4 GPIO pins which can be configured for I/O or
as interrupt sources withe configurable trigger levels.
Signed-off-by: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
---
.../devicetree/bindings/mfd/rohm,bd70528-pmic.txt | 104 +++++++++++++++++++++
1 file changed, 104 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd70528-pmic.txt
diff --git a/Documentation/devicetree/bindings/mfd/rohm,bd70528-pmic.txt b/Documentation/devicetree/bindings/mfd/rohm,bd70528-pmic.txt
new file mode 100644
index 000000000000..21801440a53a
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/rohm,bd70528-pmic.txt
@@ -0,0 +1,104 @@
+* ROHM BD70528 Power Management Integrated Circuit bindings
+
+BD70528MWV is an ultra-low Iq general purpose single-chip power management IC
+for battery-powered portable devices. The IC integrates 3 ultra-low current
+consumption buck converters, 3 LDOs and 2 LED Drivers. Also included are 4
+GPIOs, a real-time clock (RTC), a 32kHz clock gate, high-accuracy VREF
+for use with an external ADC, flexible dual-input power path, 10 bits SAR ADC
+for battery temperature monitor and 1S battery charger with scalable charge
+currents.
+
+Required properties:
+ - compatible : Should be "rohm,bd70528"
+ - reg : I2C slave address.
+ - interrupt-parent : Phandle to the parent interrupt controller.
+ - interrupts : The interrupt line the device is connected to.
+ - interrupt-controller : To indicate bd70528 acts as an interrupt controller.
+ - #interrupt-cells : Should be 2. usage is compliant to the 2 cells
+ variant of ../interrupt-controller/interrupts.txt
+ - gpio-controller : To indicate bd70528 acts as a gpio controller.
+ - #gpio-cells : Should be 2. The first cell is the pin number and
+ the second cell is used to specify flags. See
+ ../gpio/gpio.txt for more information.
+ - clock-frequency : Should be 32768
+ - #clock-cells : Should be 0.
+ - regulators: : List of child nodes that specify the regulators.
+ Please see ../regulator/rohm,bd70528-regulator.txt
+
+Optional properties:
+ - clock-output-names : Should contain name for output clock.
+
+Example:
+/* external oscillator */
+osc: oscillator {
+ compatible = "fixed-clock";
+ #clock-cells = <1>;
+ clock-frequency = <32768>;
+ clock-output-names = "osc";
+};
+
+pmic: bd70528@4b {
+ compatible = "rohm,bd70528";
+ reg = <0x4b>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <29 GPIO_ACTIVE_LOW>;
+ clocks = <&osc 0>;
+ #clock-cells = <0>;
+ clock-output-names = "bd70528-32k-out";
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ regulators {
+ buck1: BUCK1 {
+ regulator-name = "buck1";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <3400000>;
+ regulator-boot-on;
+ regulator-ramp-delay = <125>;
+ };
+ buck2: BUCK2 {
+ regulator-name = "buck2";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-ramp-delay = <125>;
+ };
+ buck3: BUCK3 {
+ regulator-name = "buck3";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-ramp-delay = <250>;
+ };
+ ldo1: LDO1 {
+ regulator-name = "ldo1";
+ regulator-min-microvolt = <1650000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ };
+ ldo2: LDO2 {
+ regulator-name = "ldo2";
+ regulator-min-microvolt = <1650000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ };
+
+ ldo3: LDO3 {
+ regulator-name = "ldo3";
+ regulator-min-microvolt = <1650000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ led_ldo1: LED_LDO1 {
+ regulator-name = "led_ldo1";
+ regulator-min-microvolt = <200000>;
+ regulator-max-microvolt = <300000>;
+ };
+ led_ldo2: LED_LDO2 {
+ regulator-name = "led_ldo2";
+ regulator-min-microvolt = <200000>;
+ regulator-max-microvolt = <300000>;
+ };
+ };
+};
--
2.14.3
--
Matti Vaittinen
ROHM Semiconductors
~~~ "I don't think so," said Rene Descartes. Just then, he vanished ~~~
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