Add DT bindings for mikroBUS interface. MikroBUS is an open standard developed by MikroElektronika for connecting add-on boards to microcontrollers or microprocessors. Signed-off-by: Ayush Singh <ayushdevel1325@xxxxxxxxx> --- .../bindings/misc/mikrobus-connector.yaml | 110 ++++++++++++++++++ MAINTAINERS | 6 + 2 files changed, 116 insertions(+) create mode 100644 Documentation/devicetree/bindings/misc/mikrobus-connector.yaml diff --git a/Documentation/devicetree/bindings/misc/mikrobus-connector.yaml b/Documentation/devicetree/bindings/misc/mikrobus-connector.yaml new file mode 100644 index 000000000000..6eace2c0dddc --- /dev/null +++ b/Documentation/devicetree/bindings/misc/mikrobus-connector.yaml @@ -0,0 +1,110 @@ +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/misc/mikrobus-connector.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: mikroBUS add-on board socket + +maintainers: + - Ayush Singh <ayushdevel1325@xxxxxxxxx> + +properties: + compatible: + const: mikrobus-connector + + pinctrl-0: true + pinctrl-1: true + pinctrl-2: true + pinctrl-3: true + pinctrl-4: true + pinctrl-5: true + pinctrl-6: true + pinctrl-7: true + pinctrl-8: true + + pinctrl-names: + items: + - const: default + - const: pwm_default + - const: pwm_gpio + - const: uart_default + - const: uart_gpio + - const: i2c_default + - const: i2c_gpio + - const: spi_default + - const: spi_gpio + + mikrobus-gpios: + minItems: 11 + maxItems: 12 + + i2c-adapter: + description: i2c adapter attached to the mikrobus socket. + $ref: /schemas/types.yaml#/definitions/phandle + + spi-controller: + description: spi bus number of the spi-master attached to the mikrobus socket. + $ref: /schemas/types.yaml#/definitions/phandle + + uart: + description: uart port attached to the mikrobus socket + $ref: /schemas/types.yaml#/definitions/phandle + + pwms: + description: the pwm-controller corresponding to the mikroBUS PWM pin. + maxItems: 1 + + spi-cs: + description: spi chip-select numbers corresponding to the chip-selects on the mikrobus socket. + $ref: /schemas/types.yaml#/definitions/uint32-array + items: + - description: chip select corresponding to CS pin + - description: chip select corresponding to RST pin + +required: + - compatible + - pinctrl-0 + - pinctrl-1 + - pinctrl-2 + - pinctrl-3 + - pinctrl-4 + - pinctrl-5 + - pinctrl-6 + - pinctrl-7 + - pinctrl-8 + - i2c-adapter + - spi-controller + - spi-cs + - uart + - pwms + - mikrobus-gpios + +additionalProperties: false + +examples: + - | + mikrobus-0 { + compatible = "mikrobus-connector"; + status = "okay"; + pinctrl-names = "default", "pwm_default", "pwm_gpio","uart_default", "uart_gpio", "i2c_default", + "i2c_gpio", "spi_default", "spi_gpio"; + pinctrl-0 = <&P2_03_gpio_input_pin &P1_04_gpio_pin &P1_02_gpio_pin>; + pinctrl-1 = <&P2_01_pwm_pin>; + pinctrl-2 = <&P2_01_gpio_pin>; + pinctrl-3 = <&P2_05_uart_pin &P2_07_uart_pin>; + pinctrl-4 = <&P2_05_gpio_pin &P2_07_gpio_pin>; + pinctrl-5 = <&P2_09_i2c_pin &P2_11_i2c_pin>; + pinctrl-6 = <&P2_09_gpio_pin &P2_11_gpio_pin>; + pinctrl-7 = <&P1_12_spi_pin &P1_10_spi_pin &P1_08_spi_sclk_pin &P1_06_spi_cs_pin>; + pinctrl-8 = <&P1_12_gpio_pin &P1_10_gpio_pin &P1_08_gpio_pin &P1_06_gpio_pin>; + i2c-adapter = <&i2c1>; + spi-controller = <&spi1>; + spi-cs = <0 1>; + uart = <&uart1>; + pwms = <&ehrpwm1 0 500000 0>; + mikrobus-gpios = <&gpio1 18 0> , <&gpio0 23 0>, <&gpio0 30 0> , <&gpio0 31 0>, <&gpio0 15 0>, + <&gpio0 14 0>, <&gpio0 4 0> , <&gpio0 3 0>, <&gpio0 2 0>, <&gpio0 5 0>, + <&gpio2 25 0>, <&gpio2 3 0>; + }; + diff --git a/MAINTAINERS b/MAINTAINERS index 375d34363777..69418a058c6b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14767,6 +14767,12 @@ M: Oliver Neukum <oliver@xxxxxxxxxx> S: Maintained F: drivers/usb/image/microtek.* +MIKROBUS +M: Ayush Singh <ayushdevel1325@xxxxxxxxx> +M: Vaishnav M A <vaishnav@xxxxxxxxxxxxxxx> +S: Maintained +F: Documentation/devicetree/bindings/misc/mikrobus-connector.yaml + MIKROTIK CRS3XX 98DX3236 BOARD SUPPORT M: Luka Kovacic <luka.kovacic@xxxxxxxxxx> M: Luka Perkov <luka.perkov@xxxxxxxxxx> -- 2.44.0
