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zephyr/dts/bindings/gpio/nuvoton,nct38xx-gpio-alert....

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driver: gpio: nct38xx: Add NCT38XX gpio driver support NCT38XX series, which are i2c-based chips, support a different number of GPIO functionality. For NCT3807, it has 2 GPIO ports on the same i2c device address. For NCT3808, it has 2 GPIO ports on different i2c device addresses. This commit adds NCT38XX GPIO driver support & provides the interrupt handler for the share alert pin. The following is NCT3807 devicetree node example: ``` &i2c0_0 { nct3807_0: nct3807@70 { #address-cells = <1>; #size-cells = <0>; compatible = "nuvoton,nct38xx-gpio"; reg = <0x70>; label = "NCT3807_0"; gpio@0 { compatible = "nuvoton,nct38xx-gpio-port"; reg = <0x0>; label = "NCT3807_0_GPIO0"; gpio-controller; #gpio-cells = <2>; ngpios = <8>; pin_mask = <0xff>; pinmux_mask = <0xf7>; }; gpio@1 { compatible = "nuvoton,nct38xx-gpio-port"; reg = <0x1>; label = "NCT3807_0_GPIO1"; gpio-controller; #gpio-cells = <2>; ngpios = <8>; pin_mask = <0xff>; }; }; }; ``` Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>
2021-11-08 11:02:01 +08:00
# Copyright (c) 2021 Nuvoton Technology Corporation.
# SPDX-License-Identifier: Apache-2.0
description: |
mfd: Add NCT38xx multi-function driver The Nuvoton NCT38xx is a multi-function device providing a TCPC controller and a I/O expander (GPIO driver). Add a multi-function driver to manage exclusive access to the device. Tested with "twister -T tests/drivers/build_all/gpio". Signed-off-by: Keith Short <keithshort@google.com>
2023-07-20 02:02:34 +08:00
Nuvoton NCT38XX series I2C-based GPIO expander alert handler.
driver: gpio: nct38xx: Add NCT38XX gpio driver support NCT38XX series, which are i2c-based chips, support a different number of GPIO functionality. For NCT3807, it has 2 GPIO ports on the same i2c device address. For NCT3808, it has 2 GPIO ports on different i2c device addresses. This commit adds NCT38XX GPIO driver support & provides the interrupt handler for the share alert pin. The following is NCT3807 devicetree node example: ``` &i2c0_0 { nct3807_0: nct3807@70 { #address-cells = <1>; #size-cells = <0>; compatible = "nuvoton,nct38xx-gpio"; reg = <0x70>; label = "NCT3807_0"; gpio@0 { compatible = "nuvoton,nct38xx-gpio-port"; reg = <0x0>; label = "NCT3807_0_GPIO0"; gpio-controller; #gpio-cells = <2>; ngpios = <8>; pin_mask = <0xff>; pinmux_mask = <0xf7>; }; gpio@1 { compatible = "nuvoton,nct38xx-gpio-port"; reg = <0x1>; label = "NCT3807_0_GPIO1"; gpio-controller; #gpio-cells = <2>; ngpios = <8>; pin_mask = <0xff>; }; }; }; ``` Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>
2021-11-08 11:02:01 +08:00
Example:
nct3807_alert_1 {
compatible = "nuvoton,nct38xx-gpio-alert";
irq-gpios = <&gpiod 4 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
nct38xx-dev = <&nct3808_0_P1 &nct3808_0_P2>;
};
compatible: "nuvoton,nct38xx-gpio-alert"
include: [base.yaml]
properties:
yamllint: indentation: fix dts/bindings/ Fix the YAML files indentation for files in dts/bindings/. Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
2023-01-04 03:21:25 +08:00
irq-gpios:
type: phandle-array
required: true
description: Interrupt GPIO pin
driver: gpio: nct38xx: Add NCT38XX gpio driver support NCT38XX series, which are i2c-based chips, support a different number of GPIO functionality. For NCT3807, it has 2 GPIO ports on the same i2c device address. For NCT3808, it has 2 GPIO ports on different i2c device addresses. This commit adds NCT38XX GPIO driver support & provides the interrupt handler for the share alert pin. The following is NCT3807 devicetree node example: ``` &i2c0_0 { nct3807_0: nct3807@70 { #address-cells = <1>; #size-cells = <0>; compatible = "nuvoton,nct38xx-gpio"; reg = <0x70>; label = "NCT3807_0"; gpio@0 { compatible = "nuvoton,nct38xx-gpio-port"; reg = <0x0>; label = "NCT3807_0_GPIO0"; gpio-controller; #gpio-cells = <2>; ngpios = <8>; pin_mask = <0xff>; pinmux_mask = <0xf7>; }; gpio@1 { compatible = "nuvoton,nct38xx-gpio-port"; reg = <0x1>; label = "NCT3807_0_GPIO1"; gpio-controller; #gpio-cells = <2>; ngpios = <8>; pin_mask = <0xff>; }; }; }; ``` Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>
2021-11-08 11:02:01 +08:00
yamllint: indentation: fix dts/bindings/ Fix the YAML files indentation for files in dts/bindings/. Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
2023-01-04 03:21:25 +08:00
nct38xx-dev:
type: phandles
required: true
description: |
mfd: Add NCT38xx multi-function driver The Nuvoton NCT38xx is a multi-function device providing a TCPC controller and a I/O expander (GPIO driver). Add a multi-function driver to manage exclusive access to the device. Tested with "twister -T tests/drivers/build_all/gpio". Signed-off-by: Keith Short <keithshort@google.com>
2023-07-20 02:02:34 +08:00
List of NCT38XX multi-function devices managed by this alert handler.