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https://github.com/AsahiLinux/u-boot
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d024236e5a
We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini <trini@konsulko.com>
89 lines
1.8 KiB
C
89 lines
1.8 KiB
C
/*
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* Copyright (c) 2015 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 <errno.h>
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#include <pwm.h>
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#include <asm/test.h>
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enum {
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NUM_CHANNELS = 3,
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};
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struct sandbox_pwm_chan {
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uint period_ns;
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uint duty_ns;
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bool enable;
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bool polarity;
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};
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struct sandbox_pwm_priv {
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struct sandbox_pwm_chan chan[NUM_CHANNELS];
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};
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static int sandbox_pwm_set_config(struct udevice *dev, uint channel,
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uint period_ns, uint duty_ns)
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{
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struct sandbox_pwm_priv *priv = dev_get_priv(dev);
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struct sandbox_pwm_chan *chan;
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if (channel >= NUM_CHANNELS)
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return -ENOSPC;
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chan = &priv->chan[channel];
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chan->period_ns = period_ns;
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chan->duty_ns = duty_ns;
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return 0;
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}
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static int sandbox_pwm_set_enable(struct udevice *dev, uint channel,
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bool enable)
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{
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struct sandbox_pwm_priv *priv = dev_get_priv(dev);
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struct sandbox_pwm_chan *chan;
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if (channel >= NUM_CHANNELS)
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return -ENOSPC;
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chan = &priv->chan[channel];
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chan->enable = enable;
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return 0;
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}
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static int sandbox_pwm_set_invert(struct udevice *dev, uint channel,
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bool polarity)
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{
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struct sandbox_pwm_priv *priv = dev_get_priv(dev);
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struct sandbox_pwm_chan *chan;
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if (channel >= NUM_CHANNELS)
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return -ENOSPC;
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chan = &priv->chan[channel];
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chan->polarity = polarity;
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return 0;
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}
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static const struct pwm_ops sandbox_pwm_ops = {
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.set_config = sandbox_pwm_set_config,
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.set_enable = sandbox_pwm_set_enable,
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.set_invert = sandbox_pwm_set_invert,
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};
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static const struct udevice_id sandbox_pwm_ids[] = {
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{ .compatible = "sandbox,pwm" },
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{ }
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};
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U_BOOT_DRIVER(warm_pwm_sandbox) = {
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.name = "pwm_sandbox",
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.id = UCLASS_PWM,
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.of_match = sandbox_pwm_ids,
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.ops = &sandbox_pwm_ops,
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.priv_auto_alloc_size = sizeof(struct sandbox_pwm_priv),
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};
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