On Fri, Jan 08, 2021 at 03:34:52PM +0200, Matti Vaittinen wrote: > Document DT bindings for ROHM BD71815. > > BD71815 is a single-chip power management IC mainly for battery-powered > portable devices. The IC integrates 5 bucks, 7 LDOs, a boost driver for > LED, a battery charger with a Coulomb counter, a real-time clock, a 32kHz > clock and two general-purpose outputs although only one is documented by > the data-sheet. > > Signed-off-by: Matti Vaittinen <matti.vaittinen@xxxxxxxxxxxxxxxxx> > --- > .../bindings/mfd/rohm,bd71815-pmic.yaml | 198 ++++++++++++++++++ > 1 file changed, 198 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml > > diff --git a/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml b/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml > new file mode 100644 > index 000000000000..2206b2008acd > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml > @@ -0,0 +1,198 @@ > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/mfd/rohm,bd71815-pmic.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: ROHM BD71815 Power Management Integrated Circuit bindings > + > +maintainers: > + - Matti Vaittinen <matti.vaittinen@xxxxxxxxxxxxxxxxx> > + > +description: | > + BD71815AGW is a single-chip power management ICs for battery-powered > + portable devices. It integrates 5 buck converters, 8 LDOs, a boost driver > + for LED and a 500 mA single-cell linear charger. Also included is a Coulomb > + counter, a real-time clock (RTC), and a 32.768 kHz clock gate and two GPOs. > + > +properties: > + compatible: > + const: rohm,bd71815 > + > + reg: > + description: > + I2C slave address. > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + gpio-controller: true Add a blank line here. > + "#gpio-cells": > + const: 2 > + description: | > + The first cell is the pin number and the second cell is used to specify > + flags. See ../gpio/gpio.txt for more information. > + > + clocks: > + maxItems: 1 And here. > + "#clock-cells": > + const: 0 And here. > + clock-output-names: > + const: bd71815-32k-out > + > + rohm,clkout-mode: > + description: clk32kout mode. Can be set to "open-drain" or "cmos". > + $ref: "/schemas/types.yaml#/definitions/string" > + enum: > + - open-drain > + - cmos > + > + rohm,charger-sense-resistor-ohms: > + minimum: 10000000 > + maximum: 50000000 > + description: | > + BD71827 and BD71828 have SAR ADC for measuring charging currents. > + External sense resistor (RSENSE in data sheet) should be used. If some > + other but 30MOhm resistor is used the resistance value should be given 'something other' Though this can be expressed as 'default: 30000000' > + here in Ohms. > + > + regulators: > + $ref: ../regulator/rohm,bd71815-regulator.yaml This file needs to come first. > + description: > + List of child nodes that specify the regulators. > + > + gpio-reserved-ranges: > + description: | > + Usage of BD71828 GPIO pins can be changed via OTP. This property can be > + used to mark the pins which should not be configured for GPIO. Please see > + the ../gpio/gpio.txt for more information. > + > + rohm,enable-hidden-gpo: > + description: | > + The BD71815 has undocumented GPO at pin E5. Pin is marked as GND at the > + data-sheet as it's location in the middle of GND pins makes it hard to > + use on PCB. If your board has managed to use this pin you can enable the > + second GPO by defining this property. Dont enable this if you are unsure > + about how the E5 pin is connected on your board. > + type: boolean > + > +required: > + - compatible > + - reg > + - interrupts > + - clocks > + - "#clock-cells" > + - regulators > + - gpio-controller > + - "#gpio-cells" > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/interrupt-controller/irq.h> > + #include <dt-bindings/leds/common.h> > + i2c { > + #address-cells = <1>; > + #size-cells = <0>; > + pmic: pmic@4b { > + compatible = "rohm,bd71815"; > + reg = <0x4b>; > + > + interrupt-parent = <&gpio1>; > + interrupts = <29 IRQ_TYPE_LEVEL_LOW>; > + > + clocks = <&osc 0>; > + #clock-cells = <0>; > + clock-output-names = "bd71815-32k-out"; > + > + gpio-controller; > + #gpio-cells = <2>; > + > + rohm,charger-sense-resistor-ohms = <10000000>; > + > + regulators { > + buck1: buck1 { > + regulator-name = "buck1"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <2000000>; > + regulator-always-on; > + regulator-ramp-delay = <1250>; > + rohm,dvs-run-voltage = <1150000>; > + rohm,dvs-suspend-voltage = <950000>; > + }; > + buck2: buck2 { > + regulator-name = "buck2"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <2000000>; > + regulator-always-on; > + regulator-ramp-delay = <1250>; > + rohm,dvs-run-voltage = <1150000>; > + rohm,dvs-suspend-voltage = <950000>; > + }; > + buck3: buck3 { > + regulator-name = "buck3"; > + regulator-min-microvolt = <1200000>; > + regulator-max-microvolt = <2700000>; > + regulator-always-on; > + }; > + buck4: buck4 { > + regulator-name = "buck4"; > + regulator-min-microvolt = <1100000>; > + regulator-max-microvolt = <1850000>; > + regulator-always-on; > + }; > + buck5: buck5 { > + regulator-name = "buck5"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <3300000>; > + regulator-always-on; > + }; > + ldo1: ldo1 { > + regulator-name = "ldo1"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <3300000>; > + regulator-always-on; > + }; > + ldo2: ldo2 { > + regulator-name = "ldo2"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <3300000>; > + regulator-always-on; > + }; > + ldo3: ldo3 { > + regulator-name = "ldo3"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <3300000>; > + regulator-always-on; > + }; > + ldo4: ldo4 { > + regulator-name = "ldo4"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <3300000>; > + regulator-always-on; > + }; > + ldo5: ldo5 { > + regulator-name = "ldo5"; > + regulator-min-microvolt = <800000>; > + regulator-max-microvolt = <3300000>; > + regulator-always-on; > + }; > + ldo6: ldodvref { > + regulator-name = "ldodvref"; > + regulator-always-on; > + }; > + ldo7: ldolpsr { > + regulator-name = "ldolpsr"; > + regulator-always-on; > + }; > + > + boost: wled { > + regulator-name = "wled"; > + regulator-min-microamp = <10>; > + regulator-max-microamp = <25000>; > + }; > + }; > + }; > + }; > -- > 2.25.4 > > > -- > Matti Vaittinen, Linux device drivers > ROHM Semiconductors, Finland SWDC > Kiviharjunlenkki 1E > 90220 OULU > FINLAND > > ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~ > Simon says - in Latin please. > ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~ > Thanks to Simon Glass for the translation =]
