1bd4cefe2SMatti Vaittinen# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause 2bd4cefe2SMatti Vaittinen%YAML 1.2 3bd4cefe2SMatti Vaittinen--- 4bd4cefe2SMatti Vaittinen$id: http://devicetree.org/schemas/mfd/rohm,bd9576-pmic.yaml# 5bd4cefe2SMatti Vaittinen$schema: http://devicetree.org/meta-schemas/core.yaml# 6bd4cefe2SMatti Vaittinen 784e85359SKrzysztof Kozlowskititle: ROHM BD9576MUF and BD9573MUF Power Management Integrated Circuit 8bd4cefe2SMatti Vaittinen 9bd4cefe2SMatti Vaittinenmaintainers: 101ca8a011SMatti Vaittinen - Matti Vaittinen <mazziesaccount@gmail.com> 11bd4cefe2SMatti Vaittinen 12bd4cefe2SMatti Vaittinendescription: | 13bd4cefe2SMatti Vaittinen BD9576MUF and BD9573MUF are power management ICs primarily intended for 14bd4cefe2SMatti Vaittinen powering the R-Car series processors. 15bd4cefe2SMatti Vaittinen The IC provides 6 power outputs with configurable sequencing and safety 16bd4cefe2SMatti Vaittinen monitoring. A watchdog logic with slow ping/windowed modes is also included. 17bd4cefe2SMatti Vaittinen 18bd4cefe2SMatti Vaittinenproperties: 19bd4cefe2SMatti Vaittinen compatible: 20bd4cefe2SMatti Vaittinen enum: 21bd4cefe2SMatti Vaittinen - rohm,bd9576 22bd4cefe2SMatti Vaittinen - rohm,bd9573 23bd4cefe2SMatti Vaittinen 24bd4cefe2SMatti Vaittinen reg: 25bd4cefe2SMatti Vaittinen description: 26bd4cefe2SMatti Vaittinen I2C slave address. 27bd4cefe2SMatti Vaittinen maxItems: 1 28bd4cefe2SMatti Vaittinen 29bd4cefe2SMatti Vaittinen interrupts: 30bd4cefe2SMatti Vaittinen maxItems: 1 31bd4cefe2SMatti Vaittinen 32bd4cefe2SMatti Vaittinen rohm,vout1-en-low: 33bd4cefe2SMatti Vaittinen description: 34bd4cefe2SMatti Vaittinen BD9576 and BD9573 VOUT1 regulator enable state can be individually 35bd4cefe2SMatti Vaittinen controlled by a GPIO. This is dictated by state of vout1-en pin during 36bd4cefe2SMatti Vaittinen the PMIC startup. If vout1-en is LOW during PMIC startup then the VOUT1 37*47aab533SBjorn Helgaas enable state is controlled via this pin. Set this property if vout1-en 38bd4cefe2SMatti Vaittinen is wired to be down at PMIC start-up. 39bd4cefe2SMatti Vaittinen type: boolean 40bd4cefe2SMatti Vaittinen 41bd4cefe2SMatti Vaittinen rohm,vout1-en-gpios: 42bd4cefe2SMatti Vaittinen description: 43bd4cefe2SMatti Vaittinen GPIO specifier to specify the GPIO connected to vout1-en for vout1 ON/OFF 44bd4cefe2SMatti Vaittinen state control. 45bd4cefe2SMatti Vaittinen maxItems: 1 46bd4cefe2SMatti Vaittinen 47bd4cefe2SMatti Vaittinen rohm,ddr-sel-low: 48bd4cefe2SMatti Vaittinen description: 49bd4cefe2SMatti Vaittinen The BD9576 and BD9573 output voltage for DDR can be selected by setting 50bd4cefe2SMatti Vaittinen the ddr-sel pin low or high. Set this property if ddr-sel is grounded. 51bd4cefe2SMatti Vaittinen type: boolean 52bd4cefe2SMatti Vaittinen 53bd4cefe2SMatti Vaittinen rohm,watchdog-enable-gpios: 54bd4cefe2SMatti Vaittinen description: The GPIO line used to enable the watchdog. 55bd4cefe2SMatti Vaittinen maxItems: 1 56bd4cefe2SMatti Vaittinen 57bd4cefe2SMatti Vaittinen rohm,watchdog-ping-gpios: 58bd4cefe2SMatti Vaittinen description: The GPIO line used to ping the watchdog. 59bd4cefe2SMatti Vaittinen maxItems: 1 60bd4cefe2SMatti Vaittinen 61bd4cefe2SMatti Vaittinen rohm,hw-timeout-ms: 62bd4cefe2SMatti Vaittinen maxItems: 2 63bd4cefe2SMatti Vaittinen description: 64*47aab533SBjorn Helgaas Watchdog timeout in milliseconds. If single value is given it is 65bd4cefe2SMatti Vaittinen the maximum timeout. Eg. if pinging watchdog is not done within this time 66bd4cefe2SMatti Vaittinen limit the watchdog will be triggered. If two values are given watchdog 67bd4cefe2SMatti Vaittinen is configured in "window mode". Then first value is limit for short-ping 68bd4cefe2SMatti Vaittinen Eg. if watchdog is pinged sooner than that the watchdog will trigger. 69bd4cefe2SMatti Vaittinen When two values is given the second value is the maximum timeout. 70bd4cefe2SMatti Vaittinen # (HW) minimum for short timeout is 2ms, maximum 220 ms. 71bd4cefe2SMatti Vaittinen # (HW) minimum for max timeout is 4ms, maximum 4416 ms. 72bd4cefe2SMatti Vaittinen 73bd4cefe2SMatti Vaittinen regulators: 74bd4cefe2SMatti Vaittinen $ref: ../regulator/rohm,bd9576-regulator.yaml 75bd4cefe2SMatti Vaittinen description: 76bd4cefe2SMatti Vaittinen List of child nodes that specify the regulators. 77bd4cefe2SMatti Vaittinen 78bd4cefe2SMatti Vaittinenrequired: 79bd4cefe2SMatti Vaittinen - compatible 80bd4cefe2SMatti Vaittinen - reg 81bd4cefe2SMatti Vaittinen - regulators 82bd4cefe2SMatti Vaittinen 83bd4cefe2SMatti VaittinenadditionalProperties: false 84bd4cefe2SMatti Vaittinen 85bd4cefe2SMatti Vaittinenexamples: 86bd4cefe2SMatti Vaittinen - | 87bd4cefe2SMatti Vaittinen #include <dt-bindings/gpio/gpio.h> 88bd4cefe2SMatti Vaittinen #include <dt-bindings/leds/common.h> 89bd4cefe2SMatti Vaittinen i2c { 90bd4cefe2SMatti Vaittinen #address-cells = <1>; 91bd4cefe2SMatti Vaittinen #size-cells = <0>; 92bd4cefe2SMatti Vaittinen pmic: pmic@30 { 93bd4cefe2SMatti Vaittinen compatible = "rohm,bd9576"; 94bd4cefe2SMatti Vaittinen reg = <0x30>; 95bd4cefe2SMatti Vaittinen rohm,vout1-en-low; 96bd4cefe2SMatti Vaittinen rohm,vout1-en-gpios = <&gpio2 6 GPIO_ACTIVE_HIGH>; 97bd4cefe2SMatti Vaittinen rohm,ddr-sel-low; 98bd4cefe2SMatti Vaittinen rohm,watchdog-enable-gpios = <&gpio2 6 GPIO_ACTIVE_HIGH>; 99bd4cefe2SMatti Vaittinen rohm,watchdog-ping-gpios = <&gpio2 7 GPIO_ACTIVE_HIGH>; 100bd4cefe2SMatti Vaittinen rohm,hw-timeout-ms = <150>, <2300>; 101bd4cefe2SMatti Vaittinen 102bd4cefe2SMatti Vaittinen regulators { 103bd4cefe2SMatti Vaittinen boost1: regulator-vd50 { 104bd4cefe2SMatti Vaittinen regulator-name = "VD50"; 105bd4cefe2SMatti Vaittinen }; 106bd4cefe2SMatti Vaittinen buck1: regulator-vd18 { 107bd4cefe2SMatti Vaittinen regulator-name = "VD18"; 108bd4cefe2SMatti Vaittinen }; 109bd4cefe2SMatti Vaittinen buck2: regulator-vdddr { 110bd4cefe2SMatti Vaittinen regulator-name = "VDDDR"; 111bd4cefe2SMatti Vaittinen }; 112bd4cefe2SMatti Vaittinen buck3: regulator-vd10 { 113bd4cefe2SMatti Vaittinen regulator-name = "VD10"; 114bd4cefe2SMatti Vaittinen }; 115bd4cefe2SMatti Vaittinen ldo: regulator-voutl1 { 116bd4cefe2SMatti Vaittinen regulator-name = "VOUTL1"; 117bd4cefe2SMatti Vaittinen }; 118bd4cefe2SMatti Vaittinen sw: regulator-vouts1 { 119bd4cefe2SMatti Vaittinen regulator-name = "VOUTS1"; 120bd4cefe2SMatti Vaittinen }; 121bd4cefe2SMatti Vaittinen }; 122bd4cefe2SMatti Vaittinen }; 123bd4cefe2SMatti Vaittinen }; 124