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linux/Documentation/devicetree/bindings/mfd/rohm,bd71847-pmic.yaml

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dt-bindings: bd718x7: Yamlify and add BD71850 Convert ROHM bd71837 and bd71847 PMIC binding text docs to yaml. Split the binding document to two separate documents (own documents for BD71837 and BD71847) as they have different amount of regulators. This way we can better enforce the node name check for regulators. ROHM is also providing BD71850 - which is almost identical to BD71847 - main difference is some initial regulator states. The BD71850 can be driven by same driver and it has same buck/LDO setup as BD71847 - add it to BD71847 binding document and introduce compatible for it. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-20 11:42:33 +02:00
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/rohm,bd71847-pmic.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ROHM BD71847 and BD71850 Power Management Integrated Circuit bindings
maintainers:
- Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
description: |
BD71847AMWV and BD71850MWV are programmable Power Management ICs for powering
single-core, dual-core, and quad-core SoCs such as NXP-i.MX 8M. It is
optimized for low BOM cost and compact solution footprint. BD71847MWV and
BD71850MWV integrate 6 Buck regulators and 6 LDOs.
Datasheets are available at
https://www.rohm.com/products/power-management/power-management-ic-for-system/industrial-consumer-applications/nxp-imx/bd71847amwv-product
https://www.rohm.com/products/power-management/power-management-ic-for-system/industrial-consumer-applications/nxp-imx/bd71850mwv-product
properties:
compatible:
enum:
- rohm,bd71847
- rohm,bd71850
reg:
description:
I2C slave address.
maxItems: 1
interrupts:
maxItems: 1
clocks:
maxItems: 1
"#clock-cells":
const: 0
dt-bindings: mfd: rohm,bd71847-pmic: Correct clock properties requirements The input clock and number of clock provider cells are not required for the PMIC to operate. They are needed only for the optional bd718x7 clock driver. Add also clock-output-names as driver takes use of it. This fixes dtbs_check warnings like: arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dt.yaml: pmic@4b: 'clocks' is a required property arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dt.yaml: pmic@4b: '#clock-cells' is a required property Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Rob Herring <robh@kernel.org>
2020-09-04 17:23:59 +02:00
clock-output-names:
maxItems: 1
dt-bindings: bd718x7: Yamlify and add BD71850 Convert ROHM bd71837 and bd71847 PMIC binding text docs to yaml. Split the binding document to two separate documents (own documents for BD71837 and BD71847) as they have different amount of regulators. This way we can better enforce the node name check for regulators. ROHM is also providing BD71850 - which is almost identical to BD71847 - main difference is some initial regulator states. The BD71850 can be driven by same driver and it has same buck/LDO setup as BD71847 - add it to BD71847 binding document and introduce compatible for it. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-20 11:42:33 +02:00
# The BD71847 abd BD71850 support two different HW states as reset target
# states. States are called as SNVS and READY. At READY state all the PMIC
# power outputs go down and OTP is reload. At the SNVS state all other logic
# and external devices apart from the SNVS power domain are shut off. Please
# refer to NXP i.MX8 documentation for further information regarding SNVS
# state. When a reset is done via SNVS state the PMIC OTP data is not reload.
# This causes power outputs that have been under SW control to stay down when
# reset has switched power state to SNVS. If reset is done via READY state the
# power outputs will be returned to HW control by OTP loading. Thus the reset
# target state is set to READY by default. If SNVS state is used the boot
# crucial regulators must have the regulator-always-on and regulator-boot-on
# properties set in regulator node.
rohm,reset-snvs-powered:
description:
Transfer PMIC to SNVS state at reset.
type: boolean
# Configure the "short press" and "long press" timers for the power button.
# Values are rounded to what hardware supports
# Short-press:
# Shortest being 10ms, next 500ms and then multiple of 500ms up to 7,5s
# Long-press:
# Shortest being 10ms, next 1000ms and then multiple of 1000ms up to 15s
# If these properties are not present the existing # configuration (from
# bootloader or OTP) is not touched.
rohm,short-press-ms:
description:
Short press duration in milliseconds
enum:
- 10
- 500
- 1000
- 1500
- 2000
- 2500
- 3000
- 3500
- 4000
- 4500
- 5000
- 5500
- 6000
- 6500
- 7000
- 7500
rohm,long-press-ms:
description:
Long press duration in milliseconds
enum:
- 10
- 1000
- 2000
- 3000
- 4000
- 5000
- 6000
- 7000
- 8000
- 9000
- 10000
- 11000
- 12000
- 13000
- 14000
- 15000
regulators:
$ref: ../regulator/rohm,bd71847-regulator.yaml
description:
List of child nodes that specify the regulators.
required:
- compatible
- reg
- interrupts
- regulators
additionalProperties: false
dt-bindings: mfd: rohm,bd71847-pmic: Correct clock properties requirements The input clock and number of clock provider cells are not required for the PMIC to operate. They are needed only for the optional bd718x7 clock driver. Add also clock-output-names as driver takes use of it. This fixes dtbs_check warnings like: arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dt.yaml: pmic@4b: 'clocks' is a required property arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dt.yaml: pmic@4b: '#clock-cells' is a required property Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Rob Herring <robh@kernel.org>
2020-09-04 17:23:59 +02:00
dependencies:
'#clock-cells': [clocks]
clocks: ['#clock-cells']
dt-bindings: bd718x7: Yamlify and add BD71850 Convert ROHM bd71837 and bd71847 PMIC binding text docs to yaml. Split the binding document to two separate documents (own documents for BD71837 and BD71847) as they have different amount of regulators. This way we can better enforce the node name check for regulators. ROHM is also providing BD71850 - which is almost identical to BD71847 - main difference is some initial regulator states. The BD71850 can be driven by same driver and it has same buck/LDO setup as BD71847 - add it to BD71847 binding document and introduce compatible for it. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-20 11:42:33 +02:00
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/leds/common.h>
i2c {
dt-bindings: BD718x7 - add missing I2C bus properties The DT example needs #address-cells and #size-cells for I2C bus or validity checker will generate warnings. Add these properties in BD71837 and BD71847 binding examples. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Rob Herring <robh@kernel.org>
2020-04-06 10:30:08 +03:00
#address-cells = <1>;
#size-cells = <0>;
pmic: pmic@4b {
dt-bindings: bd718x7: Yamlify and add BD71850 Convert ROHM bd71837 and bd71847 PMIC binding text docs to yaml. Split the binding document to two separate documents (own documents for BD71837 and BD71847) as they have different amount of regulators. This way we can better enforce the node name check for regulators. ROHM is also providing BD71850 - which is almost identical to BD71847 - main difference is some initial regulator states. The BD71850 can be driven by same driver and it has same buck/LDO setup as BD71847 - add it to BD71847 binding document and introduce compatible for it. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-20 11:42:33 +02:00
compatible = "rohm,bd71847";
reg = <0x4b>;
interrupt-parent = <&gpio1>;
interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
#clock-cells = <0>;
clocks = <&osc 0>;
rohm,reset-snvs-powered;
rohm,short-press-ms = <10>;
rohm,long-press-ms = <2000>;
regulators {
buck1: BUCK1 {
regulator-name = "buck1";
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <1300000>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <1250>;
rohm,dvs-run-voltage = <900000>;
rohm,dvs-idle-voltage = <850000>;
rohm,dvs-suspend-voltage = <800000>;
};
buck2: BUCK2 {
regulator-name = "buck2";
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <1300000>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <1250>;
rohm,dvs-run-voltage = <1000000>;
rohm,dvs-idle-voltage = <900000>;
};
buck3: BUCK3 {
regulator-name = "buck3";
regulator-min-microvolt = <550000>;
regulator-max-microvolt = <1350000>;
regulator-boot-on;
};
buck4: BUCK4 {
regulator-name = "buck4";
regulator-min-microvolt = <2600000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
};
buck5: BUCK5 {
regulator-name = "buck5";
regulator-min-microvolt = <1605000>;
regulator-max-microvolt = <1995000>;
regulator-boot-on;
};
buck8: BUCK6 {
regulator-name = "buck6";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1400000>;
};
ldo1: LDO1 {
regulator-name = "ldo1";
regulator-min-microvolt = <1600000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
};
ldo2: LDO2 {
regulator-name = "ldo2";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <900000>;
regulator-boot-on;
};
ldo3: LDO3 {
regulator-name = "ldo3";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
};
ldo4: LDO4 {
regulator-name = "ldo4";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1800000>;
};
ldo5: LDO5 {
regulator-name = "ldo5";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
};
ldo6: LDO6 {
regulator-name = "ldo6";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1800000>;
};
};
};
};
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