mmc: rtsx_pci: Enable MMC_CAP_ERASE to allow erase/discard/trim requests
[linux/fpc-iii.git] / drivers / usb / renesas_usbhs / rcar2.c
blob277160bc6f2587325e75da7a36099c61ff37da6a
1 /*
2 * Renesas USB driver R-Car Gen. 2 initialization and power control
4 * Copyright (C) 2014 Ulrich Hecht
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
13 #include <linux/gpio.h>
14 #include <linux/of_gpio.h>
15 #include <linux/phy/phy.h>
16 #include <linux/usb/phy.h>
17 #include "common.h"
18 #include "rcar2.h"
20 static int usbhs_rcar2_hardware_init(struct platform_device *pdev)
22 struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
24 if (IS_ENABLED(CONFIG_GENERIC_PHY)) {
25 struct phy *phy = phy_get(&pdev->dev, "usb");
27 if (IS_ERR(phy))
28 return PTR_ERR(phy);
30 priv->phy = phy;
31 return 0;
34 if (IS_ENABLED(CONFIG_USB_PHY)) {
35 struct usb_phy *usb_phy = usb_get_phy_dev(&pdev->dev, 0);
37 if (IS_ERR(usb_phy))
38 return PTR_ERR(usb_phy);
40 priv->usb_phy = usb_phy;
41 return 0;
44 return -ENXIO;
47 static int usbhs_rcar2_hardware_exit(struct platform_device *pdev)
49 struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
51 if (priv->phy) {
52 phy_put(priv->phy);
53 priv->phy = NULL;
56 if (priv->usb_phy) {
57 usb_put_phy(priv->usb_phy);
58 priv->usb_phy = NULL;
61 return 0;
64 static int usbhs_rcar2_power_ctrl(struct platform_device *pdev,
65 void __iomem *base, int enable)
67 struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
68 int retval = -ENODEV;
70 if (priv->phy) {
71 if (enable) {
72 retval = phy_init(priv->phy);
74 if (!retval)
75 retval = phy_power_on(priv->phy);
76 } else {
77 phy_power_off(priv->phy);
78 phy_exit(priv->phy);
79 retval = 0;
83 if (priv->usb_phy) {
84 if (enable) {
85 retval = usb_phy_init(priv->usb_phy);
87 if (!retval)
88 retval = usb_phy_set_suspend(priv->usb_phy, 0);
89 } else {
90 usb_phy_set_suspend(priv->usb_phy, 1);
91 usb_phy_shutdown(priv->usb_phy);
92 retval = 0;
96 return retval;
99 static int usbhs_rcar2_get_id(struct platform_device *pdev)
101 return USBHS_GADGET;
104 const struct renesas_usbhs_platform_callback usbhs_rcar2_ops = {
105 .hardware_init = usbhs_rcar2_hardware_init,
106 .hardware_exit = usbhs_rcar2_hardware_exit,
107 .power_ctrl = usbhs_rcar2_power_ctrl,
108 .get_id = usbhs_rcar2_get_id,