/**
* omap_usb2_set_comparator - links the comparator present in the sytem with
* this phy
* @comparator - the companion phy(comparator) for this phy
*
* The phy companion driver should call this API passing the phy_companion
* filled with set_vbus and start_srp to be used by usb phy.
*
* For use by phy companion driver
*/
void omap_usb2_set_comparator(struct phy_companion *comparator)
{
struct usb_phy *x = usb_get_phy(USB_PHY_TYPE_USB2);
struct omap_usb *phy = phy_to_omapusb(x);
phy->comparator = comparator;
}
static int omap_usb_start_srp(struct usb_otg *otg)
{
struct omap_usb *phy = phy_to_omapusb(otg->phy);
if (phy->comparator)
return phy->comparator->start_srp(phy->comparator);
else
return -ENODEV;
}
static int omap_usb_set_vbus(struct usb_otg *otg, bool enabled)
{
struct omap_usb *phy = phy_to_omapusb(otg->usb_phy);
if (!phy->comparator)
return -ENODEV;
return phy->comparator->set_vbus(phy->comparator, enabled);
}
static int omap_usb3_init(struct usb_phy *x)
{
struct omap_usb *phy = phy_to_omapusb(x);
omap_usb_dpll_lock(phy);
omap_control_usb3_phy_power(phy->control_dev, 1);
return 0;
}
/**
* omap_usb2_set_comparator - links the comparator present in the sytem with
* this phy
* @comparator - the companion phy(comparator) for this phy
*
* The phy companion driver should call this API passing the phy_companion
* filled with set_vbus and start_srp to be used by usb phy.
*
* For use by phy companion driver
*/
int omap_usb2_set_comparator(struct phy_companion *comparator)
{
struct omap_usb *phy;
struct usb_phy *x = usb_get_phy(USB_PHY_TYPE_USB2);
if (IS_ERR(x))
return -ENODEV;
phy = phy_to_omapusb(x);
phy->comparator = comparator;
return 0;
}
int omap_usb2_charger_detect(struct phy_companion *comparator)
{
struct usb_phy *x = usb_get_phy(USB_PHY_TYPE_USB2);
struct omap_usb *phy = phy_to_omapusb(x);
int charger = 0;
omap_usb2_suspend(x, 0);
charger = omap_usb_charger_detect(phy->control_dev);
omap_usb2_suspend(x, 1);
return charger;
}
static int omap_usb2_suspend(struct usb_phy *x, int suspend)
{
u32 ret;
struct omap_usb *phy = phy_to_omapusb(x);
if (suspend && !phy->is_suspended) {
omap4_usb_phy_power(phy->control_dev, 0);
pm_runtime_put_sync(phy->dev);
clk_disable(phy->wkupclk);
clk_disable(phy->optclk);
phy->is_suspended = 1;
} else if (!suspend && phy->is_suspended) {
if (phy->optclk) {
ret = clk_enable(phy->optclk);
if (ret) {
dev_err(phy->dev,
"Failed to enable optclk %d\n", ret);
goto err3;
}
}
ret = clk_enable(phy->wkupclk);
if (ret) {
dev_err(phy->dev, "Failed to enable wkupclk %d\n", ret);
goto err2;
}
ret = pm_runtime_get_sync(phy->dev);
if (ret < 0) {
dev_err(phy->dev, "get_sync failed with err %d\n",
ret);
goto err1;
}
omap4_usb_phy_power(phy->control_dev, 1);
phy->is_suspended = 0;
}
return 0;
err1:
clk_disable(phy->wkupclk);
err2:
clk_disable(phy->optclk);
err3:
return ret;
}
static int omap_usb2_suspend(struct usb_phy *x, int suspend)
{
struct omap_usb *phy = phy_to_omapusb(x);
int ret;
if (suspend && !phy->is_suspended) {
omap_control_usb_phy_power(phy->control_dev, 0);
pm_runtime_put_sync(phy->dev);
phy->is_suspended = 1;
} else if (!suspend && phy->is_suspended) {
ret = pm_runtime_get_sync(phy->dev);
if (ret < 0) {
dev_err(phy->dev, "get_sync failed with err %d\n", ret);
return ret;
}
omap_control_usb_phy_power(phy->control_dev, 1);
phy->is_suspended = 0;
}
return 0;
}
static int omap_usb3_suspend(struct usb_phy *x, int suspend)
{
struct omap_usb *phy = phy_to_omapusb(x);
int val;
int timeout = PLL_IDLE_TIME;
if (suspend && !phy->is_suspended) {
val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
val |= PLL_IDLE;
omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
do {
val = omap_usb_readl(phy->pll_ctrl_base, PLL_STATUS);
if (val & PLL_TICOPWDN)
break;
udelay(1);
} while (--timeout);
omap_control_usb3_phy_power(phy->control_dev, 0);
phy->is_suspended = 1;
} else if (!suspend && phy->is_suspended) {
phy->is_suspended = 0;
val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
val &= ~PLL_IDLE;
omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
do {
val = omap_usb_readl(phy->pll_ctrl_base, PLL_STATUS);
if (!(val & PLL_TICOPWDN))
break;
udelay(1);
} while (--timeout);
}
return 0;
}