#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/usb/otg.h>
#include <linux/usb/usb_phy_generic.h>
#include <linux/slab.h>
#include <linux/clk.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/usb/of.h>

#include "phy-am335x-control.h"
#include "phy-generic.h"

struct am335x_phy {
	struct usb_phy_generic usb_phy_gen;
	struct phy_control *phy_ctrl;
	int id;
	enum usb_dr_mode dr_mode;
};

static int am335x_init(struct usb_phy *phy)
{
	struct am335x_phy *am_phy = dev_get_drvdata(phy->dev);

	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, true);
	return 0;
}

static void am335x_shutdown(struct usb_phy *phy)
{
	struct am335x_phy *am_phy = dev_get_drvdata(phy->dev);

	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, false);
}

static int am335x_phy_probe(struct platform_device *pdev)
{
	struct am335x_phy *am_phy;
	struct device *dev = &pdev->dev;
	int ret;

	am_phy = devm_kzalloc(dev, sizeof(*am_phy), GFP_KERNEL);
	if (!am_phy)
		return -ENOMEM;

	am_phy->phy_ctrl = am335x_get_phy_control(dev);
	if (!am_phy->phy_ctrl)
		return -EPROBE_DEFER;

	am_phy->id = of_alias_get_id(pdev->dev.of_node, "phy");
	if (am_phy->id < 0) {
		dev_err(&pdev->dev, "Missing PHY id: %d\n", am_phy->id);
		return am_phy->id;
	}

	am_phy->dr_mode = of_usb_get_dr_mode_by_phy(pdev->dev.of_node, -1);

	ret = usb_phy_gen_create_phy(dev, &am_phy->usb_phy_gen, NULL);
	if (ret)
		return ret;

	ret = usb_add_phy_dev(&am_phy->usb_phy_gen.phy);
	if (ret)
		return ret;
	am_phy->usb_phy_gen.phy.init = am335x_init;
	am_phy->usb_phy_gen.phy.shutdown = am335x_shutdown;

	platform_set_drvdata(pdev, am_phy);
	device_init_wakeup(dev, true);

	/*
	 * If we leave PHY wakeup enabled then AM33XX wakes up
	 * immediately from DS0. To avoid this we mark dev->power.can_wakeup
	 * to false. The same is checked in suspend routine to decide
	 * on whether to enable PHY wakeup or not.
	 * PHY wakeup works fine in standby mode, there by allowing us to
	 * handle remote wakeup, wakeup on disconnect and connect.
	 */

	device_set_wakeup_enable(dev, false);
	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, false);

	return 0;
}

static int am335x_phy_remove(struct platform_device *pdev)
{
	struct am335x_phy *am_phy = platform_get_drvdata(pdev);

	usb_remove_phy(&am_phy->usb_phy_gen.phy);
	return 0;
}

#ifdef CONFIG_PM_SLEEP
static int am335x_phy_suspend(struct device *dev)
{
	struct platform_device	*pdev = to_platform_device(dev);
	struct am335x_phy *am_phy = platform_get_drvdata(pdev);

	/*
	 * Enable phy wakeup only if dev->power.can_wakeup is true.
	 * Make sure to enable wakeup to support remote wakeup	in
	 * standby mode ( same is not supported in OFF(DS0) mode).
	 * Enable it by doing
	 * echo enabled > /sys/bus/platform/devices/<usb-phy-id>/power/wakeup
	 */

	if (device_may_wakeup(dev))
		phy_ctrl_wkup(am_phy->phy_ctrl, am_phy->id, true);

	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, false);

	return 0;
}

static int am335x_phy_resume(struct device *dev)
{
	struct platform_device	*pdev = to_platform_device(dev);
	struct am335x_phy	*am_phy = platform_get_drvdata(pdev);

	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, true);

	if (device_may_wakeup(dev))
		phy_ctrl_wkup(am_phy->phy_ctrl, am_phy->id, false);

	return 0;
}
#endif

static SIMPLE_DEV_PM_OPS(am335x_pm_ops, am335x_phy_suspend, am335x_phy_resume);

static const struct of_device_id am335x_phy_ids[] = {
	{ .compatible = "ti,am335x-usb-phy" },
	{ }
};
MODULE_DEVICE_TABLE(of, am335x_phy_ids);

static struct platform_driver am335x_phy_driver = {
	.probe          = am335x_phy_probe,
	.remove         = am335x_phy_remove,
	.driver         = {
		.name   = "am335x-phy-driver",
		.pm = &am335x_pm_ops,
		.of_match_table = am335x_phy_ids,
	},
};

module_platform_driver(am335x_phy_driver);
MODULE_LICENSE("GPL v2");
on><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Olof Johansson &lt;olof@lixom.net&gt;</td><td class='right'>2017-01-29 21:00:48 -0800</td></tr>
<tr><th>committer</th><td>Olof Johansson &lt;olof@lixom.net&gt;</td><td class='right'>2017-01-29 21:00:48 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/uapi/sound/hdsp.h?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>0a019a28e0ca0af7dc2691d1a9527960b07ad2bb</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/uapi/sound/hdsp.h?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>5ee1db9aacacd6af6701fb290e8a294ef3cc2bf2</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/uapi/sound/hdsp.h?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>include/uapi/sound/hdsp.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/uapi/sound/hdsp.h?id=ec026b5020688a8bde5fae9a69ae3c59b66ba3ae'>ec026b5020688a8bde5fae9a69ae3c59b66ba3ae</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/uapi/sound/hdsp.h?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb&amp;id2=ec026b5020688a8bde5fae9a69ae3c59b66ba3ae'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/uapi/sound/hdsp.h?id=8413299cb3933dade6186bbee8363f190032107e'>8413299cb3933dade6186bbee8363f190032107e</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/uapi/sound/hdsp.h?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb&amp;id2=8413299cb3933dade6186bbee8363f190032107e'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'sti-dt-for-v4.10-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pchotard/sti into fixes</div><div class='commit-msg'>STi DT fix:

Since v4.10-rc1, xhci is complaining in loop with :
    [  801.953836] usb usb6-port1: Cannot enable. Maybe the USB cable is bad?
    [  801.960455] xhci-hcd xhci-hcd.0.auto: Cannot set link state.
    [  801.966611] usb usb6-port1: cannot disable (err = -32)

set property "snps,dis_u3_susphy_quirk" in DT fix it.

* tag 'sti-dt-for-v4.10-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pchotard/sti:
  ARM: dts: STiH407-family: set snps,dis_u3_susphy_quirk

Signed-off-by: Olof Johansson &lt;olof@lixom.net&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>Diffstat</a> (limited to 'include/uapi/sound/hdsp.h')</div><table summary='diffstat' class='diffstat'>