1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (c) 2016 Google, Inc 4 * Written by Simon Glass <sjg (at) chromium.org> 5 */ 6 7 #include <common.h> 8 #include <dm.h> 9 #include <pwm.h> 10 11 int pwm_set_invert(struct udevice *dev, uint channel, bool polarity) 12 { 13 struct pwm_ops *ops = pwm_get_ops(dev); 14 15 if (!ops->set_invert) 16 return -ENOSYS; 17 18 return ops->set_invert(dev, channel, polarity); 19 } 20 21 int pwm_set_config(struct udevice *dev, uint channel, uint period_ns, 22 uint duty_ns) 23 { 24 struct pwm_ops *ops = pwm_get_ops(dev); 25 26 if (!ops->set_config) 27 return -ENOSYS; 28 29 return ops->set_config(dev, channel, period_ns, duty_ns); 30 } 31 32 int pwm_set_enable(struct udevice *dev, uint channel, bool enable) 33 { 34 struct pwm_ops *ops = pwm_get_ops(dev); 35 36 if (!ops->set_enable) 37 return -ENOSYS; 38 39 return ops->set_enable(dev, channel, enable); 40 } 41 42 UCLASS_DRIVER(pwm) = { 43 .id = UCLASS_PWM, 44 .name = "pwm", 45 }; 46
