static void msm_hsusb_request_host(void *handle, int request)
{
struct msmusb_hcd *mhcd = handle;
struct usb_hcd *hcd = mhcd_to_hcd(mhcd);
struct msm_usb_host_platform_data *pdata = mhcd->pdata;
struct msm_otg *otg = container_of(mhcd->xceiv, struct msm_otg, otg);
switch (request) {
case REQUEST_RESUME:
usb_hcd_resume_root_hub(hcd);
break;
case REQUEST_START:
if (mhcd->running)
break;
wake_lock(&mhcd->wlock);
msm_xusb_pm_qos_update(mhcd, 1);
msm_xusb_enable_clks(mhcd);
if (PHY_TYPE(pdata->phy_info) == USB_PHY_INTEGRATED)
if (otg->set_clk)
otg->set_clk(mhcd->xceiv, 1);
if (pdata->vbus_power)
pdata->vbus_power(pdata->phy_info, 1);
if (pdata->config_gpio)
pdata->config_gpio(1);
usb_add_hcd(hcd, hcd->irq, IRQF_SHARED);
mhcd->running = 1;
if (PHY_TYPE(pdata->phy_info) == USB_PHY_INTEGRATED)
if (otg->set_clk)
otg->set_clk(mhcd->xceiv, 0);
break;
case REQUEST_STOP:
if (!mhcd->running)
break;
mhcd->running = 0;
if (PHY_TYPE(pdata->phy_info) == USB_PHY_SERIAL_PMIC) {
usb_lpm_exit(hcd);
if (cancel_work_sync(&(mhcd->lpm_exit_work)))
usb_lpm_exit_w(&mhcd->lpm_exit_work);
}
usb_remove_hcd(hcd);
if (pdata->config_gpio)
pdata->config_gpio(0);
if (pdata->vbus_power)
pdata->vbus_power(pdata->phy_info, 0);
msm_xusb_disable_clks(mhcd);
wake_lock_timeout(&mhcd->wlock, HZ/2);
msm_xusb_pm_qos_update(mhcd, 0);
if (PHY_TYPE(pdata->phy_info) == USB_PHY_INTEGRATED) {
otg->reset(mhcd->xceiv);
otg_set_suspend(mhcd->xceiv, 1);
}
break;
}
}
static void msm_xusb_uninit_host(struct msmusb_hcd *mhcd)
{
struct usb_hcd *hcd = mhcd_to_hcd(mhcd);
struct msm_usb_host_platform_data *pdata = mhcd->pdata;
switch (PHY_TYPE(pdata->phy_info)) {
case USB_PHY_INTEGRATED:
if (pdata->vbus_init)
pdata->vbus_init(0);
hcd_to_ehci(hcd)->transceiver = NULL;
otg_set_host(mhcd->xceiv->otg, NULL);
usb_put_transceiver(mhcd->xceiv);
cancel_work_sync(&mhcd->otg_work);
break;
case USB_PHY_SERIAL_PMIC:
iounmap(hcd->regs);
clk_put(mhcd->alt_core_clk);
clk_put(mhcd->iface_clk);
msm_fsusb_reset_phy();
msm_fsusb_rpc_deinit();
break;
default:
pr_err("phy type is bad\n");
}
}
static int msm_xusb_init_phy(struct msmusb_hcd *mhcd)
{
int ret = -ENODEV;
struct usb_hcd *hcd = mhcd_to_hcd(mhcd);
struct msm_usb_host_platform_data *pdata = mhcd->pdata;
switch (PHY_TYPE(pdata->phy_info)) {
case USB_PHY_INTEGRATED:
ret = 0;
case USB_PHY_SERIAL_PMIC:
msm_xusb_enable_clks(mhcd);
writel(0, USB_USBINTR);
#if 0
ret = msm_fsusb_rpc_init(&mhcd->otg_ops);
if (!ret)
msm_fsusb_init_phy();
#endif
msm_xusb_disable_clks(mhcd);
break;
default:
pr_err("%s: undefined phy type ( %X ) \n", __func__,
pdata->phy_info);
}
return ret;
}
static void msm_hsusb_request_host(void *handle, int request)
{
struct msmusb_hcd *mhcd = handle;
struct usb_hcd *hcd = mhcd_to_hcd(mhcd);
struct msm_usb_host_platform_data *pdata = mhcd->pdata;
switch (request) {
case REQUEST_RESUME:
usb_hcd_resume_root_hub(hcd);
break;
case REQUEST_START:
if (mhcd->running)
break;
wake_lock(&mhcd->wlock);
msm_xusb_pm_qos_update(mhcd, 1);
msm_xusb_enable_clks(mhcd);
if (PHY_TYPE(pdata->phy_info) == USB_PHY_INTEGRATED)
clk_enable(mhcd->clk);
if (pdata->vbus_power)
pdata->vbus_power(pdata->phy_info, 1);
if (pdata->config_gpio)
pdata->config_gpio(1);
usb_add_hcd(hcd, hcd->irq, IRQF_SHARED);
mhcd->running = 1;
if (PHY_TYPE(pdata->phy_info) == USB_PHY_INTEGRATED)
clk_disable(mhcd->clk);
break;
case REQUEST_STOP:
if (!mhcd->running)
break;
mhcd->running = 0;
/* come out of lpm before deregistration */
usb_lpm_exit(hcd);
if (cancel_work_sync(&(mhcd->lpm_exit_work)))
usb_lpm_exit_w(&mhcd->lpm_exit_work);
usb_remove_hcd(hcd);
if (pdata->config_gpio)
pdata->config_gpio(0);
if (pdata->vbus_power)
pdata->vbus_power(pdata->phy_info, 0);
msm_xusb_disable_clks(mhcd);
wake_lock_timeout(&mhcd->wlock, HZ/2);
msm_xusb_pm_qos_update(mhcd, 0);
break;
}
}
static int __init ehci_msm_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd;
struct resource *res;
struct msm_usb_host_platform_data *pdata;
int retval;
struct msmusb_hcd *mhcd;
hcd = usb_create_hcd(&msm_hc_driver, &pdev->dev, dev_name(&pdev->dev));
if (!hcd)
return -ENOMEM;
hcd->irq = platform_get_irq(pdev, 0);
if (hcd->irq < 0) {
usb_put_hcd(hcd);
return hcd->irq;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
usb_put_hcd(hcd);
return -ENODEV;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
mhcd = hcd_to_mhcd(hcd);
spin_lock_init(&mhcd->lock);
mhcd->in_lpm = 0;
mhcd->running = 0;
device_init_wakeup(&pdev->dev, 1);
pdata = pdev->dev.platform_data;
if (PHY_TYPE(pdata->phy_info) == USB_PHY_UNDEFINED) {
usb_put_hcd(hcd);
return -ENODEV;
}
hcd->power_budget = pdata->power_budget;
mhcd->pdata = pdata;
INIT_WORK(&mhcd->lpm_exit_work, usb_lpm_exit_w);
wake_lock_init(&mhcd->wlock, WAKE_LOCK_SUSPEND, dev_name(&pdev->dev));
pm_qos_add_requirement(PM_QOS_SYSTEM_BUS_FREQ, (char *)dev_name(&pdev->dev),
PM_QOS_DEFAULT_VALUE);
retval = msm_xusb_init_host(mhcd);
if (retval < 0) {
usb_put_hcd(hcd);
wake_lock_destroy(&mhcd->wlock);
pm_qos_remove_requirement(PM_QOS_SYSTEM_BUS_FREQ,
(char *) dev_name(&pdev->dev));
}
return retval;
}
static int msm_xusb_init_phy(struct msmusb_hcd *mhcd)
{
int ret = -ENODEV;
struct usb_hcd *hcd = mhcd_to_hcd(mhcd);
struct msm_usb_host_platform_data *pdata = mhcd->pdata;
unsigned temp;
switch (PHY_TYPE(pdata->phy_info)) {
case USB_PHY_INTEGRATED:
msm_hsusb_rpc_connect();
/* VBUS might be present. Turn off vbus */
if (pdata->vbus_power)
pdata->vbus_power(pdata->phy_info, 0);
msm_xusb_enable_clks(mhcd);
clk_enable(mhcd->clk);
if (pdata->phy_reset)
ret = pdata->phy_reset(hcd->regs);
else
ret = msm_hsusb_phy_reset();
if (ret)
break;
/* Give some delay to settle phy after reset */
msleep(100);
/* Disable VbusValid and SessionEnd comparators */
ulpi_write(hcd, ULPI_VBUS_VALID
| ULPI_SESS_END, ULPI_INT_RISE_CLR);
ulpi_write(hcd, ULPI_VBUS_VALID
| ULPI_SESS_END, ULPI_INT_FALL_CLR);
/* set hs driver amplitude to max
* to avoid eye diagram failures
*/
temp = ulpi_read(hcd, ULPI_CONFIG_REG);
temp |= ULPI_AMPLITUDE_MAX;
ulpi_write(hcd, temp, ULPI_CONFIG_REG);
/* Disable all interrupts */
writel(0, USB_USBINTR);
writel(readl(USB_OTGSC) & ~OTGSC_INTR_MASK, USB_OTGSC);
msm_xusb_disable_clks(mhcd);
clk_disable(mhcd->clk);
break;
case USB_PHY_SERIAL_PMIC:
msm_xusb_enable_clks(mhcd);
writel(0, USB_USBINTR);
ret = msm_fsusb_rpc_init(&mhcd->otg_ops);
if (!ret)
msm_fsusb_init_phy();
msm_xusb_disable_clks(mhcd);
break;
default:
pr_err("%s: undefined phy type ( %X ) \n", __func__,
pdata->phy_info);
}
return ret;
}
static irqreturn_t ehci_msm_irq(struct usb_hcd *hcd)
{
struct msmusb_hcd *mhcd = hcd_to_mhcd(hcd);
struct msm_otg *otg = container_of(mhcd->xceiv, struct msm_otg, phy);
/*
* OTG scheduled a work to get Integrated PHY out of LPM,
* WAIT till then */
if (PHY_TYPE(mhcd->pdata->phy_info) == USB_PHY_INTEGRATED)
if (atomic_read(&otg->in_lpm))
return IRQ_HANDLED;
return ehci_irq(hcd);
}
static int ehci_msm_bus_resume(struct usb_hcd *hcd)
{
struct msmusb_hcd *mhcd = hcd_to_mhcd(hcd);
wake_lock(&mhcd->wlock);
if (PHY_TYPE(mhcd->pdata->phy_info) == USB_PHY_INTEGRATED) {
otg_set_suspend(mhcd->xceiv, 0);
} else {
usb_lpm_exit(hcd);
if (cancel_work_sync(&(mhcd->lpm_exit_work)))
usb_lpm_exit_w(&mhcd->lpm_exit_work);
}
return ehci_bus_resume(hcd);
}
static int ehci_msm_bus_suspend(struct usb_hcd *hcd)
{
int ret;
struct msmusb_hcd *mhcd = hcd_to_mhcd(hcd);
ret = ehci_bus_suspend(hcd);
if (ret) {
pr_err("ehci_bus suspend faield\n");
return ret;
}
if (PHY_TYPE(mhcd->pdata->phy_info) == USB_PHY_INTEGRATED)
ret = otg_set_suspend(mhcd->xceiv, 1);
else
ret = usb_lpm_enter(hcd);
wake_unlock(&mhcd->wlock);
return ret;
}
static int usb_wakeup_phy(struct usb_hcd *hcd)
{
struct msmusb_hcd *mhcd = hcd_to_mhcd(hcd);
struct msm_usb_host_platform_data *pdata = mhcd->pdata;
int ret = -ENODEV;
switch (PHY_TYPE(pdata->phy_info)) {
case USB_PHY_INTEGRATED:
break;
case USB_PHY_SERIAL_PMIC:
ret = msm_fsusb_resume_phy();
break;
default:
pr_err("%s: undefined phy type ( %X ) \n", __func__,
pdata->phy_info);
}
return ret;
}
static int msm_xusb_rpc_close(struct msmusb_hcd *mhcd)
{
int retval = -ENODEV;
struct msm_usb_host_platform_data *pdata = mhcd->pdata;
switch (PHY_TYPE(pdata->phy_info)) {
case USB_PHY_INTEGRATED:
if (!mhcd->xceiv)
retval = msm_hsusb_rpc_close();
break;
case USB_PHY_SERIAL_PMIC:
retval = msm_fsusb_reset_phy();
msm_fsusb_rpc_deinit();
break;
default:
pr_err("%s: undefined phy type ( %X ) \n", __func__,
pdata->phy_info);
}
return retval;
}
static int ehci_msm_bus_resume(struct usb_hcd *hcd)
{
struct msmusb_hcd *mhcd = hcd_to_mhcd(hcd);
struct device *dev = hcd->self.controller;
wake_lock(&mhcd->wlock);
pm_runtime_get_noresume(dev);
pm_runtime_resume(dev);
if (PHY_TYPE(mhcd->pdata->phy_info) == USB_PHY_INTEGRATED) {
usb_phy_set_suspend(mhcd->xceiv, 0);
} else { /* PMIC serial phy */
usb_lpm_exit(hcd);
if (cancel_work_sync(&(mhcd->lpm_exit_work)))
usb_lpm_exit_w(&mhcd->lpm_exit_work);
}
return ehci_bus_resume(hcd);
}
static int ehci_msm_bus_suspend(struct usb_hcd *hcd)
{
int ret;
struct msmusb_hcd *mhcd = hcd_to_mhcd(hcd);
struct device *dev = hcd->self.controller;
ret = ehci_bus_suspend(hcd);
if (ret) {
pr_err("ehci_bus suspend faield\n");
return ret;
}
if (PHY_TYPE(mhcd->pdata->phy_info) == USB_PHY_INTEGRATED)
ret = usb_phy_set_suspend(mhcd->xceiv, 1);
else
ret = usb_lpm_enter(hcd);
pm_runtime_put_noidle(dev);
pm_runtime_suspend(dev);
wake_unlock(&mhcd->wlock);
return ret;
}
static void msm_xusb_pm_qos_update(struct msmusb_hcd *mhcd, int vote)
{
struct usb_hcd *hcd = mhcd_to_hcd(mhcd);
if (PHY_TYPE(mhcd->pdata->phy_info) == USB_PHY_SERIAL_PMIC)
goto vote_for_axi;
if (!depends_on_axi_freq(mhcd->xceiv))
return;
vote_for_axi:
if (vote) {
pm_qos_update_requirement(PM_QOS_SYSTEM_BUS_FREQ,
(char *)hcd->self.bus_name,
MSM_AXI_MAX_FREQ);
} else {
pm_qos_update_requirement(PM_QOS_SYSTEM_BUS_FREQ,
(char *) hcd->self.bus_name,
PM_QOS_DEFAULT_VALUE);
}
}
static void msm_xusb_enable_clks(struct msmusb_hcd *mhcd)
{
struct msm_usb_host_platform_data *pdata = mhcd->pdata;
if (mhcd->clk_enabled)
return;
switch (PHY_TYPE(pdata->phy_info)) {
case USB_PHY_INTEGRATED:
clk_enable(mhcd->pclk);
break;
case USB_PHY_SERIAL_PMIC:
clk_enable(mhcd->clk);
clk_enable(mhcd->pclk);
break;
default:
pr_err("%s: undefined phy type ( %X ) \n", __func__,
pdata->phy_info);
return;
}
mhcd->clk_enabled = 1;
}
static void msm_xusb_enable_clks(struct msmusb_hcd *mhcd)
{
struct msm_usb_host_platform_data *pdata = mhcd->pdata;
if (mhcd->clk_enabled)
return;
switch (PHY_TYPE(pdata->phy_info)) {
case USB_PHY_INTEGRATED:
/* OTG driver takes care of clock management */
break;
case USB_PHY_SERIAL_PMIC:
clk_prepare_enable(mhcd->alt_core_clk);
clk_prepare_enable(mhcd->iface_clk);
break;
default:
pr_err("%s: undefined phy type ( %X )\n", __func__,
pdata->phy_info);
return;
}
mhcd->clk_enabled = 1;
}
static int msm_xusb_otg_register(struct msmusb_hcd *mhcd)
{
int ret = 0;
struct msm_usb_host_platform_data *pdata = mhcd->pdata;
switch (PHY_TYPE(pdata->phy_info)) {
case USB_PHY_INTEGRATED:
ret = msm_xusb_init_phy(mhcd);
if (ret)
break;
mhcd->xceiv = msm_otg_get_transceiver();
if (mhcd->xceiv && mhcd->xceiv->set_host)
mhcd->xceiv->set_host(mhcd->xceiv, &mhcd->otg_ops);
else
msm_hsusb_request_host(mhcd, REQUEST_START);
break;
case USB_PHY_SERIAL_PMIC:
msm_xusb_init_phy(mhcd);
break;
default:
pr_err("phy type is bad\n");
}
return ret;
}
static int __init ehci_msm_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd;
struct resource *res;
struct msm_usb_host_platform_data *pdata;
int retval;
int id = pdev->id;
struct msmusb_hcd *mhcd;
char *usb_clks[] = { "usb_hs_clk", "usb_hs2_clk" };
char *usb_pclks[] = { "usb_hs_pclk", "usb_hs2_pclk" };
hcd = usb_create_hcd(&msm_hc_driver, &pdev->dev, pdev->dev.bus_id);
if (!hcd)
return -ENOMEM;
hcd->irq = platform_get_irq(pdev, 0);
if (hcd->irq < 0) {
retval = hcd->irq;
goto err_free_hcd;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
retval = -ENODEV;
goto err_free_hcd;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
if (!hcd->regs) {
retval = -EFAULT;
goto err_free_hcd;
}
mhcd = hcd_to_mhcd(hcd);
spin_lock_init(&mhcd->lock);
mhcd->in_lpm = 0;
mhcd->running = 0;
device_init_wakeup(&pdev->dev, 1);
/* get usb clocks */
mhcd->clk = clk_get(&pdev->dev, usb_clks[id]);
if (IS_ERR(mhcd->clk)) {
retval = -ENODEV;
goto err_map;
}
mhcd->pclk = clk_get(&pdev->dev, usb_pclks[id]);
if (IS_ERR(mhcd->pclk)) {
retval = -ENODEV;
goto err_map;
}
pdata = pdev->dev.platform_data;
if (PHY_TYPE(pdata->phy_info) == USB_PHY_UNDEFINED) {
retval = -ENODEV;
goto err_map;
}
mhcd->pdata = pdata;
INIT_WORK(&mhcd->lpm_exit_work, usb_lpm_exit_w);
wake_lock_init(&mhcd->wlock, WAKE_LOCK_SUSPEND, pdev->dev.bus_id);
pm_qos_add_requirement(PM_QOS_SYSTEM_BUS_FREQ, pdev->dev.bus_id,
PM_QOS_DEFAULT_VALUE);
/* Register with otg driver. If registration fails, start usb host */
mhcd->otg_ops.request = msm_hsusb_request_host;
mhcd->otg_ops.handle = (void *) mhcd;
retval = msm_xusb_otg_register(mhcd);
if (retval < 0)
goto err_map;
return retval;
err_map:
iounmap(hcd->regs);
err_free_hcd:
usb_put_hcd(hcd);
return retval;
}
static void msm_hsusb_request_host(void *handle, int request)
{
struct msmusb_hcd *mhcd = handle;
struct usb_hcd *hcd = mhcd_to_hcd(mhcd);
struct msm_usb_host_platform_data *pdata = mhcd->pdata;
struct msm_otg *otg = container_of(mhcd->xceiv, struct msm_otg, phy);
#ifdef CONFIG_USB_OTG
struct usb_device *udev = hcd->self.root_hub;
#endif
struct device *dev = hcd->self.controller;
switch (request) {
#ifdef CONFIG_USB_OTG
case REQUEST_HNP_SUSPEND:
/* disable Root hub auto suspend. As hardware is configured
* for peripheral mode, mark hardware is not available.
*/
if (PHY_TYPE(pdata->phy_info) == USB_PHY_INTEGRATED) {
pm_runtime_disable(&udev->dev);
/* Mark root hub as disconnected. This would
* protect suspend/resume via sysfs.
*/
udev->state = USB_STATE_NOTATTACHED;
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
hcd->state = HC_STATE_HALT;
pm_runtime_put_noidle(dev);
pm_runtime_suspend(dev);
}
break;
case REQUEST_HNP_RESUME:
if (PHY_TYPE(pdata->phy_info) == USB_PHY_INTEGRATED) {
pm_runtime_get_noresume(dev);
pm_runtime_resume(dev);
disable_irq(hcd->irq);
ehci_msm_reset(hcd);
ehci_msm_run(hcd);
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
pm_runtime_enable(&udev->dev);
udev->state = USB_STATE_CONFIGURED;
enable_irq(hcd->irq);
}
break;
#endif
case REQUEST_RESUME:
usb_hcd_resume_root_hub(hcd);
break;
case REQUEST_START:
if (mhcd->running)
break;
pm_runtime_get_noresume(dev);
pm_runtime_resume(dev);
wake_lock(&mhcd->wlock);
msm_xusb_pm_qos_update(mhcd, 1);
msm_xusb_enable_clks(mhcd);
if (PHY_TYPE(pdata->phy_info) == USB_PHY_INTEGRATED)
if (otg->set_clk)
otg->set_clk(mhcd->xceiv, 1);
if (pdata->vbus_power)
pdata->vbus_power(pdata->phy_info, 1);
if (pdata->config_gpio)
pdata->config_gpio(1);
usb_add_hcd(hcd, hcd->irq, IRQF_SHARED);
mhcd->running = 1;
if (PHY_TYPE(pdata->phy_info) == USB_PHY_INTEGRATED)
if (otg->set_clk)
otg->set_clk(mhcd->xceiv, 0);
break;
case REQUEST_STOP:
if (!mhcd->running)
break;
mhcd->running = 0;
/* come out of lpm before deregistration */
if (PHY_TYPE(pdata->phy_info) == USB_PHY_SERIAL_PMIC) {
usb_lpm_exit(hcd);
if (cancel_work_sync(&(mhcd->lpm_exit_work)))
usb_lpm_exit_w(&mhcd->lpm_exit_work);
}
usb_remove_hcd(hcd);
if (pdata->config_gpio)
pdata->config_gpio(0);
if (pdata->vbus_power)
pdata->vbus_power(pdata->phy_info, 0);
msm_xusb_disable_clks(mhcd);
wake_lock_timeout(&mhcd->wlock, HZ/2);
msm_xusb_pm_qos_update(mhcd, 0);
pm_runtime_put_noidle(dev);
pm_runtime_suspend(dev);
break;
}
}
static int msm_xusb_init_host(struct msmusb_hcd *mhcd)
{
int ret = 0;
struct msm_otg *otg;
struct usb_hcd *hcd = mhcd_to_hcd(mhcd);
struct msm_usb_host_platform_data *pdata = mhcd->pdata;
struct device *dev = container_of((void *)hcd, struct device,
platform_data);
switch (PHY_TYPE(pdata->phy_info)) {
case USB_PHY_INTEGRATED:
msm_hsusb_rpc_connect();
if (pdata->vbus_init)
pdata->vbus_init(1);
if (pdata->vbus_power)
pdata->vbus_power(pdata->phy_info, 0);
INIT_WORK(&mhcd->otg_work, msm_hsusb_otg_work);
mhcd->xceiv = otg_get_transceiver();
if (!mhcd->xceiv)
return -ENODEV;
otg = container_of(mhcd->xceiv, struct msm_otg, otg);
hcd->regs = otg->regs;
otg->start_host = msm_hsusb_start_host;
ret = otg_set_host(mhcd->xceiv, &hcd->self);
break;
case USB_PHY_SERIAL_PMIC:
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
if (!hcd->regs)
return -EFAULT;
mhcd->clk = clk_get(dev, "usb_hs2_clk");
if (IS_ERR(mhcd->clk)) {
iounmap(hcd->regs);
return PTR_ERR(mhcd->clk);
}
mhcd->pclk = clk_get(dev, "usb_hs2_pclk");
if (IS_ERR(mhcd->pclk)) {
iounmap(hcd->regs);
clk_put(mhcd->clk);
return PTR_ERR(mhcd->pclk);
}
mhcd->otg_ops.request = msm_hsusb_request_host;
mhcd->otg_ops.handle = (void *) mhcd;
ret = msm_xusb_init_phy(mhcd);
if (ret < 0) {
iounmap(hcd->regs);
clk_put(mhcd->clk);
clk_put(mhcd->pclk);
}
break;
default:
pr_err("phy type is bad\n");
}
return ret;
}
static int msm_xusb_init_host(struct platform_device *pdev,
struct msmusb_hcd *mhcd)
{
int ret = 0;
struct msm_otg *otg;
struct usb_hcd *hcd = mhcd_to_hcd(mhcd);
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
struct msm_usb_host_platform_data *pdata = mhcd->pdata;
switch (PHY_TYPE(pdata->phy_info)) {
case USB_PHY_INTEGRATED:
msm_hsusb_rpc_connect();
if (pdata->vbus_init)
pdata->vbus_init(1);
/* VBUS might be present. Turn off vbus */
if (pdata->vbus_power)
pdata->vbus_power(pdata->phy_info, 0);
INIT_WORK(&mhcd->otg_work, msm_hsusb_otg_work);
mhcd->xceiv = usb_get_transceiver();
if (!mhcd->xceiv)
return -ENODEV;
otg = container_of(mhcd->xceiv, struct msm_otg, phy);
hcd->regs = otg->regs;
otg->start_host = msm_hsusb_start_host;
ret = otg_set_host(mhcd->xceiv->otg, &hcd->self);
ehci->transceiver = mhcd->xceiv;
break;
case USB_PHY_SERIAL_PMIC:
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
if (!hcd->regs)
return -EFAULT;
/* get usb clocks */
mhcd->alt_core_clk = clk_get(&pdev->dev, "alt_core_clk");
if (IS_ERR(mhcd->alt_core_clk)) {
iounmap(hcd->regs);
return PTR_ERR(mhcd->alt_core_clk);
}
mhcd->iface_clk = clk_get(&pdev->dev, "iface_clk");
if (IS_ERR(mhcd->iface_clk)) {
iounmap(hcd->regs);
clk_put(mhcd->alt_core_clk);
return PTR_ERR(mhcd->iface_clk);
}
mhcd->otg_ops.request = msm_hsusb_request_host;
mhcd->otg_ops.handle = (void *) mhcd;
ret = msm_xusb_init_phy(mhcd);
if (ret < 0) {
iounmap(hcd->regs);
clk_put(mhcd->alt_core_clk);
clk_put(mhcd->iface_clk);
}
break;
default:
pr_err("phy type is bad\n");
}
return ret;
}
static int __devinit ehci_msm_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd;
struct resource *res;
struct msm_usb_host_platform_data *pdata;
int retval;
struct msmusb_hcd *mhcd;
hcd = usb_create_hcd(&msm_hc_driver, &pdev->dev, dev_name(&pdev->dev));
if (!hcd)
return -ENOMEM;
hcd->irq = platform_get_irq(pdev, 0);
if (hcd->irq < 0) {
usb_put_hcd(hcd);
return hcd->irq;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
usb_put_hcd(hcd);
return -ENODEV;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
mhcd = hcd_to_mhcd(hcd);
spin_lock_init(&mhcd->lock);
mhcd->in_lpm = 0;
mhcd->running = 0;
device_init_wakeup(&pdev->dev, 1);
pdata = pdev->dev.platform_data;
if (PHY_TYPE(pdata->phy_info) == USB_PHY_UNDEFINED) {
usb_put_hcd(hcd);
return -ENODEV;
}
hcd->power_budget = pdata->power_budget;
mhcd->pdata = pdata;
INIT_WORK(&mhcd->lpm_exit_work, usb_lpm_exit_w);
wake_lock_init(&mhcd->wlock, WAKE_LOCK_SUSPEND, dev_name(&pdev->dev));
pdata->ebi1_clk = clk_get(&pdev->dev, "core_clk");
if (IS_ERR(pdata->ebi1_clk))
pdata->ebi1_clk = NULL;
else
clk_set_rate(pdata->ebi1_clk, INT_MAX);
retval = msm_xusb_init_host(pdev, mhcd);
if (retval < 0) {
wake_lock_destroy(&mhcd->wlock);
usb_put_hcd(hcd);
clk_put(pdata->ebi1_clk);
}
pm_runtime_enable(&pdev->dev);
return retval;
}
