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usb: renesas_usbhs: add support for generic PHY 

This patch adds support for the generic PHY. The generic PHY will be
used in multiplatform environment.

Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Yoshihiro Shimoda 2014-10-07 12:43:06 +09:00 committed by Felipe Balbi
parent 5f6aea3453
commit 420974a0ed
2 changed files with 30 additions and 0 deletions
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1
drivers/usb/renesas_usbhs/common.h
View File

@ -270,6 +270,7 @@ struct usbhs_priv {
struct usbhs_fifo_info fifo_info;
struct usb_phy *usb_phy;
struct phy *phy;
};
/*

29
drivers/usb/renesas_usbhs/rcar2.c
View File

@ -12,6 +12,7 @@
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/phy/phy.h>
#include <linux/platform_data/gpio-rcar.h>
#include <linux/usb/phy.h>
#include "common.h"
@ -21,6 +22,16 @@ 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);
@ -38,6 +49,11 @@ 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;
@ -52,6 +68,19 @@ static int usbhs_rcar2_power_ctrl(struct platform_device *pdev,
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);