80 lines
1.5 KiB
C
Executable File
80 lines
1.5 KiB
C
Executable File
/*
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* Copyright (c) 2016 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <pwm.h>
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#ifdef CONFIG_PWM_MOLCHIP
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#include <dm/uclass.h>
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#include <dm/device-internal.h>
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#endif
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int pwm_set_invert(struct udevice *dev, uint channel, bool polarity)
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{
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struct pwm_ops *ops = pwm_get_ops(dev);
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if (!ops->set_invert)
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return -ENOSYS;
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return ops->set_invert(dev, channel, polarity);
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}
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int pwm_set_config(struct udevice *dev, uint channel, uint period_ns,
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uint duty_ns)
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{
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struct pwm_ops *ops = pwm_get_ops(dev);
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if (!ops->set_config)
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return -ENOSYS;
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return ops->set_config(dev, channel, period_ns, duty_ns);
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}
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int pwm_set_enable(struct udevice *dev, uint channel, bool enable)
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{
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struct pwm_ops *ops = pwm_get_ops(dev);
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if (!ops->set_enable)
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return -ENOSYS;
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return ops->set_enable(dev, channel, enable);
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}
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#ifdef CONFIG_PWM_MOLCHIP
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int pwm_open(struct udevice *dev, bool enable)
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{
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struct pwm_ops *ops = pwm_get_ops(dev);
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if (!ops->udev_open)
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return -ENOSYS;
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return ops->udev_open(dev, enable);
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}
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struct udevice *pwm_get_dev_by_name(const char *devname)
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{
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struct udevice *it;
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struct uclass *uc;
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uclass_get(UCLASS_PWM, &uc);
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uclass_foreach_dev(it, uc) {
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if (device_probe(it))
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continue;
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/* Check for the name or the sequence number to match */
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if (strcmp(it->driver->name, devname) == 0)
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return it;
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}
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return NULL;
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}
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#endif
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UCLASS_DRIVER(pwm) = {
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.id = UCLASS_PWM,
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.name = "pwm",
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};
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