| /* |
| * Copyright (c) 2023 Microchip Technology Inc. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/dt-bindings/pwm/pwm.h> |
| |
| /* MEC152x EVB |
| * BBLED controller 0 uses GPIO156/LED0 connected to JP31-13 |
| * BBLED controller 1 uses GPIO157/LED1 connected to JP31-15 |
| * BBLED controller 2 uses GPIO153/LED2 connected to JP31-17 |
| * |
| * BBLED hardware divides input clock (32KHz or 48MHz) by (256 * (prescalar+1) |
| * and implements duty cycle for blink mode as an 8-bit value where 0 is off and |
| * 255 full on. BBLED PWM is 8-bit. |
| * BBLED-PWM driver get cycles API reports 32KHz/256 or 48M/256. |
| * Due to all the above we use 50 ms for DT PWM period. |
| */ |
| |
| /* PWM_SEC(1) PWM_USEC(7812) */ |
| / { |
| pwmleds { |
| compatible = "pwm-leds"; |
| /* struct pwm_dt_spec: phandle channel period(ns) flags */ |
| bbled_pwm0: bbled_pwm0 { |
| pwms = <&bbled0 0 PWM_MSEC(50) PWM_POLARITY_NORMAL>; |
| }; |
| bbled_pwm1: bbled_pwm1 { |
| pwms = <&bbled1 0 PWM_MSEC(50) PWM_POLARITY_NORMAL>; |
| }; |
| bbled_pwm2: bbled_pwm2 { |
| pwms = <&bbled2 0 PWM_MSEC(50) PWM_POLARITY_NORMAL>; |
| }; |
| }; |
| }; |
| |
| &pinctrl { |
| led0_gpio156_invert: led0_gpio156_invert { |
| pinmux = <MCHP_XEC_PINMUX(0156, MCHP_AF1)>; |
| microchip,output-func-invert; |
| }; |
| led1_gpio157_invert: led1_gpio157_invert { |
| pinmux = <MCHP_XEC_PINMUX(0157, MCHP_AF1)>; |
| microchip,output-func-invert; |
| }; |
| led2_gpio153_invert: led2_gpio153_invert { |
| pinmux = <MCHP_XEC_PINMUX(0153, MCHP_AF1)>; |
| microchip,output-func-invert; |
| }; |
| }; |
| |
| &bbled0 { |
| compatible = "microchip,xec-pwmbbled"; |
| clock-select = "PWM_BBLED_CLK_32K"; |
| pinctrl-0 = <&led0_gpio156>; |
| pinctrl-1 = <&led0_gpio156_sleep>; |
| pinctrl-names = "default", "sleep"; |
| status = "okay"; |
| #pwm-cells = <3>; |
| }; |
| |
| &bbled1 { |
| compatible = "microchip,xec-pwmbbled"; |
| clock-select = "PWM_BBLED_CLK_32K"; |
| pinctrl-0 = <&led1_gpio157>; |
| pinctrl-1 = <&led1_gpio157_sleep>; |
| pinctrl-names = "default", "sleep"; |
| status = "okay"; |
| #pwm-cells = <3>; |
| }; |
| |
| &bbled2 { |
| compatible = "microchip,xec-pwmbbled"; |
| clock-select = "PWM_BBLED_CLK_32K"; |
| pinctrl-0 = <&led2_gpio153>; |
| pinctrl-1 = <&led2_gpio153_sleep>; |
| pinctrl-names = "default", "sleep"; |
| status = "okay"; |
| #pwm-cells = <3>; |
| }; |
