| Message ID | 4b3a868c07312d630de32e85d31dee7501627b73.1610110144.git.matti.vaittinen@fi.rohmeurope.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | Support ROHM BD71815 PMIC | expand |
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@fi.rohmeurope.com> > --- > .../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@fi.rohmeurope.com> > + > +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 =]
On Mon, 2021-01-11 at 13:06 -0600, Rob Herring wrote: > 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@fi.rohmeurope.com> > > --- > > .../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@fi.rohmeurope.com> > > + > > +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". > > + $ref: "/schemas/types.yaml#/definitions/string" > > + enum: > > + - open-drain > > + - cmos > > + > > + rohm,charger-sense-resistor-ohms: > > + minimum: 10000000 > > + maximum: 50000000 > > + description: | > > + BD71827 and BD71828 have SAR ADC for measuring charging > > currents. > > + External sense resistor (RSENSE in data sheet) should be > > used. If some > > + other but 30MOhm resistor is used the resistance value > > should be given > > 'something other' > > Though this can be expressed as 'default: 30000000' I guess I'll use both 'something other' and 'default: 30000000' in next version. 'default: 30000000' is nice for machine parser - but for human reader the 'something other' is likely to be superior. (No scientific test conducted to back off this statement though). Thanks Rob! Best Regards Matti Vaittinen
diff --git a/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml b/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml new file mode 100644 index 000000000000..2206b2008acd --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml @@ -0,0 +1,198 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$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@fi.rohmeurope.com> + +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 + "#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 + "#clock-cells": + const: 0 + 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 + here in Ohms. + + regulators: + $ref: ../regulator/rohm,bd71815-regulator.yaml + 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>; + }; + }; + }; + };
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@fi.rohmeurope.com> --- .../bindings/mfd/rohm,bd71815-pmic.yaml | 198 ++++++++++++++++++ 1 file changed, 198 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml