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/*
* Renesas USB driver R-Car Gen. 2 initialization and power control
*
* Copyright (C) 2014 Ulrich Hecht
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/platform_data/gpio-rcar.h>
#include <linux/usb/phy.h>
#include "common.h"
#include "rcar2.h"
static int usbhs_rcar2_hardware_init(struct platform_device *pdev)
{
struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
struct usb_phy *phy;
phy = usb_get_phy_dev(&pdev->dev, 0);
if (IS_ERR(phy))
return PTR_ERR(phy);
priv->phy = phy;
return 0;
}
static int usbhs_rcar2_hardware_exit(struct platform_device *pdev)
{
struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
if (!priv->phy)
return 0;
usb_put_phy(priv->phy);
priv->phy = NULL;
return 0;
}
static int usbhs_rcar2_power_ctrl(struct platform_device *pdev,
void __iomem *base, int enable)
{
struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
if (!priv->phy)
return -ENODEV;
if (enable) {
int retval = usb_phy_init(priv->phy);
if (!retval)
retval = usb_phy_set_suspend(priv->phy, 0);
return retval;
}
usb_phy_set_suspend(priv->phy, 1);
usb_phy_shutdown(priv->phy);
return 0;
}
static int usbhs_rcar2_get_id(struct platform_device *pdev)
{
return USBHS_GADGET;
}
const struct renesas_usbhs_platform_callback usbhs_rcar2_ops = {
.hardware_init = usbhs_rcar2_hardware_init,
.hardware_exit = usbhs_rcar2_hardware_exit,
.power_ctrl = usbhs_rcar2_power_ctrl,
.get_id = usbhs_rcar2_get_id,
};
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