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Commit 6ba43c29 authored by Hans de Goede's avatar Hans de Goede Committed by Kishon Vijay Abraham I
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phy-sun4i-usb: Add support for phy_set_mode 



Together with some musb sunxi glue changes this allows run-time dr_mode
switching support via the "mode" musb sysfs attribute.

Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
parent 5f90d31c

drivers/phy/phy-sun4i-usb.c

+30 −0
Original line number Diff line number Diff line
@@ -427,6 +427,35 @@ static int sun4i_usb_phy_power_off(struct phy *_phy) 
	return 0;

}



static int sun4i_usb_phy_set_mode(struct phy *_phy, enum phy_mode mode)

{

	struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);

	struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy);



	if (phy->index != 0)

		return -EINVAL;



	switch (mode) {

	case PHY_MODE_USB_HOST:

		data->dr_mode = USB_DR_MODE_HOST;

		break;

	case PHY_MODE_USB_DEVICE:

		data->dr_mode = USB_DR_MODE_PERIPHERAL;

		break;

	case PHY_MODE_USB_OTG:

		data->dr_mode = USB_DR_MODE_OTG;

		break;

	default:

		return -EINVAL;

	}



	dev_info(&_phy->dev, "Changing dr_mode to %d\n", (int)data->dr_mode);

	data->force_session_end = true;

	queue_delayed_work(system_wq, &data->detect, 0);



	return 0;

}



void sun4i_usb_phy_set_squelch_detect(struct phy *_phy, bool enabled)

{

	struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
@@ -440,6 +469,7 @@ static const struct phy_ops sun4i_usb_phy_ops = { 
	.exit		= sun4i_usb_phy_exit,

	.power_on	= sun4i_usb_phy_power_on,

	.power_off	= sun4i_usb_phy_power_off,

	.set_mode	= sun4i_usb_phy_set_mode,

	.owner		= THIS_MODULE,

};