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authorSascha Hauer <s.hauer@pengutronix.de>2020-04-20 15:07:38 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2020-04-27 21:17:17 +0200
commit8d158e1a40917e48cb68131a6cfd1b8755a4d8a0 (patch)
tree76118ca8fbf736bbdbc30b9fa2480a0d2a775597 /dts/Bindings/mfd/rohm,bd71837-pmic.yaml
parent15d46bac2280def447c7fd74686d44d938c24556 (diff)
downloadbarebox-8d158e1a40917e48cb68131a6cfd1b8755a4d8a0.tar.gz
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dts: update to v5.7-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/rohm,bd71837-pmic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ROHM BD71837 Power Management Integrated Circuit bindings
+
+maintainers:
+ - Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
+
+description: |
+ BD71837MWV is 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. BD71837MWV integrates 8 Buck
+ regulators and 7 LDOs.
+ Datasheet for BD71837 is available at
+ https://www.rohm.com/products/power-management/power-management-ic-for-system/industrial-consumer-applications/nxp-imx/bd71837amwv-product
+
+properties:
+ compatible:
+ const: rohm,bd71837
+
+ reg:
+ description:
+ I2C slave address.
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 0
+
+# The BD718x7 supports 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
+
+ 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
+
+ regulators:
+ $ref: ../regulator/rohm,bd71837-regulator.yaml
+ description:
+ List of child nodes that specify the regulators.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - "#clock-cells"
+ - regulators
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/leds/common.h>
+
+ i2c {
+ pmic: pmic@4b {
+ compatible = "rohm,bd71837";
+ 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 = <700000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-boot-on;
+ rohm,dvs-run-voltage = <1000000>;
+ };
+ buck4: BUCK4 {
+ regulator-name = "buck4";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-boot-on;
+ rohm,dvs-run-voltage = <1000000>;
+ };
+ buck5: BUCK5 {
+ regulator-name = "buck5";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-boot-on;
+ };
+ buck6: BUCK6 {
+ regulator-name = "buck6";
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ };
+ buck7: BUCK7 {
+ regulator-name = "buck7";
+ regulator-min-microvolt = <1605000>;
+ regulator-max-microvolt = <1995000>;
+ regulator-boot-on;
+ };
+ buck8: BUCK8 {
+ regulator-name = "buck8";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1400000>;
+ };
+
+ ldo1: LDO1 {
+ regulator-name = "ldo1";
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ };
+ ldo2: LDO2 {
+ regulator-name = "ldo2";
+ regulator-min-microvolt = <900000>;
+ 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 = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ ldo6: LDO6 {
+ regulator-name = "ldo6";
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <1800000>;
+ };
+ ldo7_reg: LDO7 {
+ regulator-name = "ldo7";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ };
+ };
+ };