| # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/mfd/rohm,bd9576-pmic.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: ROHM BD9576MUF and BD9573MUF Power Management Integrated Circuit |
| |
| maintainers: |
| - Matti Vaittinen <mazziesaccount@gmail.com> |
| |
| description: | |
| BD9576MUF and BD9573MUF are power management ICs primarily intended for |
| powering the R-Car series processors. |
| The IC provides 6 power outputs with configurable sequencing and safety |
| monitoring. A watchdog logic with slow ping/windowed modes is also included. |
| |
| properties: |
| compatible: |
| enum: |
| - rohm,bd9576 |
| - rohm,bd9573 |
| |
| reg: |
| description: |
| I2C slave address. |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| rohm,vout1-en-low: |
| description: |
| BD9576 and BD9573 VOUT1 regulator enable state can be individually |
| controlled by a GPIO. This is dictated by state of vout1-en pin during |
| the PMIC startup. If vout1-en is LOW during PMIC startup then the VOUT1 |
| enable state is controlled via this pin. Set this property if vout1-en |
| is wired to be down at PMIC start-up. |
| type: boolean |
| |
| rohm,vout1-en-gpios: |
| description: |
| GPIO specifier to specify the GPIO connected to vout1-en for vout1 ON/OFF |
| state control. |
| maxItems: 1 |
| |
| rohm,ddr-sel-low: |
| description: |
| The BD9576 and BD9573 output voltage for DDR can be selected by setting |
| the ddr-sel pin low or high. Set this property if ddr-sel is grounded. |
| type: boolean |
| |
| rohm,watchdog-enable-gpios: |
| description: The GPIO line used to enable the watchdog. |
| maxItems: 1 |
| |
| rohm,watchdog-ping-gpios: |
| description: The GPIO line used to ping the watchdog. |
| maxItems: 1 |
| |
| rohm,hw-timeout-ms: |
| maxItems: 2 |
| description: |
| Watchdog timeout in milliseconds. If single value is given it is |
| the maximum timeout. Eg. if pinging watchdog is not done within this time |
| limit the watchdog will be triggered. If two values are given watchdog |
| is configured in "window mode". Then first value is limit for short-ping |
| Eg. if watchdog is pinged sooner than that the watchdog will trigger. |
| When two values is given the second value is the maximum timeout. |
| # (HW) minimum for short timeout is 2ms, maximum 220 ms. |
| # (HW) minimum for max timeout is 4ms, maximum 4416 ms. |
| |
| regulators: |
| $ref: /schemas/regulator/rohm,bd9576-regulator.yaml |
| description: |
| List of child nodes that specify the regulators. |
| |
| required: |
| - compatible |
| - reg |
| - regulators |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/gpio/gpio.h> |
| #include <dt-bindings/leds/common.h> |
| i2c { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| pmic: pmic@30 { |
| compatible = "rohm,bd9576"; |
| reg = <0x30>; |
| rohm,vout1-en-low; |
| rohm,vout1-en-gpios = <&gpio2 6 GPIO_ACTIVE_HIGH>; |
| rohm,ddr-sel-low; |
| rohm,watchdog-enable-gpios = <&gpio2 6 GPIO_ACTIVE_HIGH>; |
| rohm,watchdog-ping-gpios = <&gpio2 7 GPIO_ACTIVE_HIGH>; |
| rohm,hw-timeout-ms = <150>, <2300>; |
| |
| regulators { |
| boost1: regulator-vd50 { |
| regulator-name = "VD50"; |
| }; |
| buck1: regulator-vd18 { |
| regulator-name = "VD18"; |
| }; |
| buck2: regulator-vdddr { |
| regulator-name = "VDDDR"; |
| }; |
| buck3: regulator-vd10 { |
| regulator-name = "VD10"; |
| }; |
| ldo: regulator-voutl1 { |
| regulator-name = "VOUTL1"; |
| }; |
| sw: regulator-vouts1 { |
| regulator-name = "VOUTS1"; |
| }; |
| }; |
| }; |
| }; |
