mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-22 20:16:02 +07:00
f15f30449a
This header file will be removed soon. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Felipe Balbi <balbi@ti.com>
110 lines
2.2 KiB
C
110 lines
2.2 KiB
C
/*
|
|
* 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/phy/phy.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);
|
|
|
|
if (IS_ENABLED(CONFIG_GENERIC_PHY)) {
|
|
struct phy *phy = phy_get(&pdev->dev, "usb");
|
|
|
|
if (IS_ERR(phy))
|
|
return PTR_ERR(phy);
|
|
|
|
priv->phy = phy;
|
|
return 0;
|
|
}
|
|
|
|
if (IS_ENABLED(CONFIG_USB_PHY)) {
|
|
struct usb_phy *usb_phy = usb_get_phy_dev(&pdev->dev, 0);
|
|
|
|
if (IS_ERR(usb_phy))
|
|
return PTR_ERR(usb_phy);
|
|
|
|
priv->usb_phy = usb_phy;
|
|
return 0;
|
|
}
|
|
|
|
return -ENXIO;
|
|
}
|
|
|
|
static int usbhs_rcar2_hardware_exit(struct platform_device *pdev)
|
|
{
|
|
struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
|
|
|
|
if (priv->phy) {
|
|
phy_put(priv->phy);
|
|
priv->phy = NULL;
|
|
}
|
|
|
|
if (priv->usb_phy) {
|
|
usb_put_phy(priv->usb_phy);
|
|
priv->usb_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);
|
|
int retval = -ENODEV;
|
|
|
|
if (priv->phy) {
|
|
if (enable) {
|
|
retval = phy_init(priv->phy);
|
|
|
|
if (!retval)
|
|
retval = phy_power_on(priv->phy);
|
|
} else {
|
|
phy_power_off(priv->phy);
|
|
phy_exit(priv->phy);
|
|
retval = 0;
|
|
}
|
|
}
|
|
|
|
if (priv->usb_phy) {
|
|
if (enable) {
|
|
retval = usb_phy_init(priv->usb_phy);
|
|
|
|
if (!retval)
|
|
retval = usb_phy_set_suspend(priv->usb_phy, 0);
|
|
} else {
|
|
usb_phy_set_suspend(priv->usb_phy, 1);
|
|
usb_phy_shutdown(priv->usb_phy);
|
|
retval = 0;
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
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,
|
|
};
|