static int __exit ehci_mxc_drv_remove(struct platform_device *pdev)
{
struct mxc_usbh_platform_data *pdata = pdev->dev.platform_data;
struct ehci_mxc_priv *priv = platform_get_drvdata(pdev);
struct usb_hcd *hcd = priv->hcd;
if (pdata && pdata->exit)
pdata->exit(pdev);
if (pdata->otg)
otg_shutdown(pdata->otg);
usb_remove_hcd(hcd);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
platform_set_drvdata(pdev, NULL);
clk_disable(priv->usbclk);
clk_put(priv->usbclk);
if (priv->ahbclk) {
clk_disable(priv->ahbclk);
clk_put(priv->ahbclk);
}
if (priv->phy1clk) {
clk_disable(priv->phy1clk);
clk_put(priv->phy1clk);
}
kfree(priv);
return 0;
}
static void omap2430_musb_disable(struct musb *musb)
{
#if 0
if (musb->xceiv->last_event)
otg_shutdown(musb->xceiv);
#endif
}
/* blocking notifier support */
static int musb_otg_notifications(struct notifier_block *nb,
unsigned long event, void *unused)
{
struct musb *musb = container_of(nb, struct musb, nb);
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
struct omap_musb_board_data *data = pdata->board_data;
switch (event) {
case USB_EVENT_ID:
dev_dbg(musb->controller, "ID GND\n");
if (is_otg_enabled(musb)) {
if (musb->gadget_driver) {
pm_runtime_get_sync(musb->controller);
otg_init(musb->xceiv);
omap2430_musb_set_vbus(musb, 1);
}
} else {
pm_runtime_get_sync(musb->controller);
otg_init(musb->xceiv);
omap2430_musb_set_vbus(musb, 1);
}
break;
case USB_EVENT_VBUS:
dev_dbg(musb->controller, "VBUS Connect\n");
if (musb->gadget_driver)
pm_runtime_get_sync(musb->controller);
otg_init(musb->xceiv);
break;
case USB_EVENT_NONE:
dev_dbg(musb->controller, "VBUS Disconnect\n");
if (is_otg_enabled(musb) || is_peripheral_enabled(musb))
if (musb->gadget_driver) {
pm_runtime_mark_last_busy(musb->controller);
pm_runtime_put_autosuspend(musb->controller);
}
if (data->interface_type == MUSB_INTERFACE_UTMI) {
if (musb->xceiv->set_vbus)
otg_set_vbus(musb->xceiv, 0);
}
otg_shutdown(musb->xceiv);
break;
default:
dev_dbg(musb->controller, "ID float\n");
return NOTIFY_DONE;
}
return NOTIFY_OK;
}
/* blocking notifier support */
static int musb_otg_notifications(struct notifier_block *nb,
unsigned long event, void *unused)
{
struct musb *musb = container_of(nb, struct musb, nb);
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
struct omap_musb_board_data *data = pdata->board_data;
switch (event) {
case USB_EVENT_ID:
DBG(4, "ID GND\n");
if (is_otg_enabled(musb)) {
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (musb->gadget_driver) {
otg_init(musb->xceiv);
if (data->interface_type ==
MUSB_INTERFACE_UTMI)
omap2430_musb_set_vbus(musb, 1);
}
#endif
} else {
otg_init(musb->xceiv);
if (data->interface_type ==
MUSB_INTERFACE_UTMI)
omap2430_musb_set_vbus(musb, 1);
}
break;
case USB_EVENT_VBUS:
DBG(4, "VBUS Connect\n");
otg_init(musb->xceiv);
break;
case USB_EVENT_NONE:
DBG(4, "VBUS Disconnect\n");
if (data->interface_type == MUSB_INTERFACE_UTMI) {
if (musb->xceiv->set_vbus)
otg_set_vbus(musb->xceiv, 0);
}
otg_shutdown(musb->xceiv);
break;
default:
DBG(4, "ID float\n");
return NOTIFY_DONE;
}
return NOTIFY_OK;
}
void musb_platform_try_idle(struct musb *musb, unsigned long timeout)
{
unsigned long default_timeout = jiffies + msecs_to_jiffies(3);
static unsigned long last_timer;
u32 val;
if (timeout == 0)
timeout = default_timeout;
/* Never idle if active, or when VBUS timeout is not set as host */
if (musb->is_active || ((musb->a_wait_bcon == 0)
&& (musb->xceiv->state == OTG_STATE_A_WAIT_BCON))) {
DBG(4, "%s active, deleting timer\n", otg_state_string(musb));
del_timer(&musb_idle_timer);
last_timer = jiffies;
return;
}
if (musb->xceiv->state == OTG_STATE_UNDEFINED) {
/* disable the phy clock when the gadget driver is unloaded.
* Powerdown the phy and configure the musb sysconfig to
* force standby/idle.
* this will allow the core to hit retention and offmode
*/
otg_shutdown(musb->xceiv);
/* configure in force idle/ standby */
val = musb_readl(musb->mregs, OTG_SYSCONFIG);
val &= ~(SMARTIDLEWKUP | SMARTSTDBY | NOSTDBY | ENABLEWAKEUP);
val |= FORCEIDLE | FORCESTDBY;
musb_writel(musb->mregs, OTG_SYSCONFIG, val);
musb_writel(musb->mregs, OTG_FORCESTDBY, 1);
}
if (time_after(last_timer, timeout)) {
if (!timer_pending(&musb_idle_timer))
last_timer = timeout;
else {
DBG(4, "Longer idle timer already pending, ignoring\n");
return;
}
}
last_timer = timeout;
DBG(4, "%s inactive, for idle timer for %lu ms\n",
otg_state_string(musb),
(unsigned long)jiffies_to_msecs(timeout - jiffies));
mod_timer(&musb_idle_timer, timeout);
}
static void musb_otg_notifier_work(struct work_struct *data_notifier_work)
{
struct musb *musb = container_of(data_notifier_work, struct musb, otg_notifier_work);
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
struct omap_musb_board_data *data = pdata->board_data;
switch (musb->xceiv_event) {
case USB_EVENT_ID:
dev_dbg(musb->controller, "ID GND\n");
if (!is_otg_enabled(musb) || musb->gadget_driver) {
pm_runtime_get_sync(musb->controller);
otg_init(musb->xceiv);
omap2430_musb_set_vbus(musb, 1);
}
break;
case USB_EVENT_VBUS:
dev_dbg(musb->controller, "VBUS Connect\n");
if (musb->gadget_driver)
pm_runtime_get_sync(musb->controller);
otg_init(musb->xceiv);
break;
case USB_EVENT_NONE:
dev_dbg(musb->controller, "VBUS Disconnect\n");
if (is_otg_enabled(musb) || is_peripheral_enabled(musb))
if (musb->gadget_driver) {
pm_runtime_mark_last_busy(musb->controller);
pm_runtime_put_autosuspend(musb->controller);
}
if (data->interface_type == MUSB_INTERFACE_UTMI) {
if (musb->xceiv->set_vbus)
otg_set_vbus(musb->xceiv, 0);
}
otg_shutdown(musb->xceiv);
break;
default:
dev_dbg(musb->controller, "ID float\n");
}
}
/* blocking notifier support */
int musb_notifier_call(struct notifier_block *nb,
unsigned long event, void *unused)
{
struct musb *musb = container_of(nb, struct musb, nb);
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
struct omap_musb_board_data *data = pdata->board_data;
static int hostmode;
u32 val;
switch (event) {
case USB_EVENT_ID:
DBG(1, "ID GND\n");
/* configure musb into smartidle with wakeup enabled
* smart standby mode.
*/
musb_writel(musb->mregs, OTG_FORCESTDBY, 0);
val = musb_readl(musb->mregs, OTG_SYSCONFIG);
if (cpu_is_omap44xx())
val |= SMARTIDLEWKUP | SMARTSTDBY | ENABLEWAKEUP;
else
val |= SMARTIDLE | SMARTSTDBY | ENABLEWAKEUP;
musb_writel(musb->mregs, OTG_SYSCONFIG, val);
if (data->interface_type == MUSB_INTERFACE_UTMI) {
otg_init(musb->xceiv);
hostmode = 1;
musb_enable_vbus(musb);
}
val = __raw_readl(phymux_base +
USBA0_OTG_CE_PAD1_USBA0_OTG_DP);
val |= DP_WAKEUPENABLE;
__raw_writel(val, phymux_base +
USBA0_OTG_CE_PAD1_USBA0_OTG_DP);
break;
case USB_EVENT_VBUS:
DBG(1, "VBUS Connect\n");
/* configure musb into smartidle with wakeup enabled
* smart standby mode.
*/
musb_writel(musb->mregs, OTG_FORCESTDBY, 0);
val = musb_readl(musb->mregs, OTG_SYSCONFIG);
if (cpu_is_omap44xx())
val |= SMARTIDLEWKUP | SMARTSTDBY | ENABLEWAKEUP;
else
val |= SMARTIDLE | SMARTSTDBY | ENABLEWAKEUP;
musb_writel(musb->mregs, OTG_SYSCONFIG, val);
if (data->interface_type == MUSB_INTERFACE_UTMI) {
otg_init(musb->xceiv);
if (!hostmode) {
/* Enable VBUS Valid, AValid. Clear SESSEND.*/
__raw_writel(IDDIG | AVALID | VBUSVALID,
ctrl_base + USBOTGHS_CONTROL);
}
}
break;
case USB_EVENT_NONE:
DBG(1, "VBUS Disconnect\n");
if (data->interface_type == MUSB_INTERFACE_UTMI) {
/* enable this clock because in suspend interrupt
* handler phy clocks are disabled. If phy clocks are
* not enabled then DISCONNECT interrupt will not be
* reached to mentor
*/
otg_set_clk(musb->xceiv, 1);
__raw_writel(SESSEND | IDDIG, ctrl_base +
USBOTGHS_CONTROL);
if (musb->xceiv->set_vbus)
otg_set_vbus(musb->xceiv, 0);
otg_shutdown(musb->xceiv);
}
hostmode = 0;
/* configure in force idle/ standby */
musb_writel(musb->mregs, OTG_FORCESTDBY, 1);
val = musb_readl(musb->mregs, OTG_SYSCONFIG);
val &= ~(SMARTIDLEWKUP | SMARTSTDBY | ENABLEWAKEUP);
val |= FORCEIDLE | FORCESTDBY;
musb_writel(musb->mregs, OTG_SYSCONFIG, val);
val = __raw_readl(phymux_base +
USBA0_OTG_CE_PAD1_USBA0_OTG_DP);
val &= ~DP_WAKEUPENABLE;
__raw_writel(val, phymux_base +
USBA0_OTG_CE_PAD1_USBA0_OTG_DP);
break;
default:
DBG(1, "ID float\n");
return NOTIFY_DONE;
}
return NOTIFY_OK;
}
static void musb_otg_notifier_work(struct work_struct *data_notifier_work)
{
struct musb_otg_work *otg_work =
container_of(data_notifier_work, struct musb_otg_work, work);
struct musb *musb = otg_work->musb;
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
struct omap_musb_board_data *data = pdata->board_data;
enum usb_xceiv_events xceiv_event = otg_work->xceiv_event;
kfree(otg_work);
switch (xceiv_event) {
case USB_EVENT_ID:
dev_dbg(musb->controller, "ID GND\n");
if (is_otg_enabled(musb)) {
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (musb->gadget_driver) {
pm_runtime_get_sync(musb->controller);
otg_init(musb->xceiv);
omap2430_musb_set_vbus(musb, 1);
}
#endif
} else {
pm_runtime_get_sync(musb->controller);
otg_init(musb->xceiv);
omap2430_musb_set_vbus(musb, 1);
}
break;
case USB_EVENT_CHARGER:
dev_dbg(musb->controller, "Dedicated charger connect\n");
musb->is_ac_charger = true;
break;
case USB_EVENT_VBUS:
dev_dbg(musb->controller, "VBUS Connect\n");
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (musb->gadget_driver)
pm_runtime_get_sync(musb->controller);
#endif
otg_init(musb->xceiv);
break;
case USB_EVENT_NONE:
if (musb->is_ac_charger) {
dev_dbg(musb->controller,
"Dedicated charger disconnect\n");
musb->is_ac_charger = false;
break;
}
dev_dbg(musb->controller, "VBUS Disconnect\n");
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (is_otg_enabled(musb) || is_peripheral_enabled(musb))
if (musb->gadget_driver)
#endif
{
pm_runtime_mark_last_busy(musb->controller);
pm_runtime_put_autosuspend(musb->controller);
}
if (data->interface_type == MUSB_INTERFACE_UTMI) {
omap2430_musb_set_vbus(musb, 0);
if (musb->xceiv->set_vbus)
otg_set_vbus(musb->xceiv, 0);
}
otg_shutdown(musb->xceiv);
break;
default:
dev_dbg(musb->controller, "ID float\n");
return;
}
return;
}
static void musb_otg_notifier_work(struct work_struct *data_notifier_work)
{
struct musb_otg_work *otg_work =
container_of(data_notifier_work, struct musb_otg_work, work);
struct musb *musb = otg_work->musb;
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
struct omap_musb_board_data *data = pdata->board_data;
enum usb_xceiv_events xceiv_event = otg_work->xceiv_event;
unsigned long flags;
#ifdef CONFIG_USB_SAMSUNG_OMAP_NORPM
int ret = 0;
#endif
kfree(otg_work);
switch (xceiv_event) {
case USB_EVENT_ID:
dev_info(musb->controller, "ID GND\n");
musb->xceiv->state = OTG_STATE_A_IDLE;
#ifdef CONFIG_USB_SAMSUNG_OMAP_NORPM
ret = omap2430_async_resume(musb);
if (ret < 0)
return;
#endif
if (is_otg_enabled(musb)) {
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (musb->gadget_driver) {
musb_otg_init(musb);
}
#endif
} else {
musb_otg_init(musb);
}
#ifdef CONFIG_USB_SAMSUNG_OMAP_NORPM
musb_add_hcd(musb);
#endif
break;
case USB_EVENT_VBUS_CHARGER:
dev_info(musb->controller, "USB/TA Connect\n");
/* This event received from ta_connect_irq
* when a usb cable is connected. Logic has still
* not identified whether this is a usb cable or TA.
* So just break here.
*/
break;
case USB_EVENT_VBUS:
dev_info(musb->controller, "VBUS Connect\n");
#ifdef CONFIG_USB_SAMSUNG_OMAP_NORPM
ret = omap2430_async_resume(musb);
if (ret < 0)
return;
#endif
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (musb->gadget_driver)
pm_runtime_get_sync(musb->controller);
#endif
otg_init(musb->xceiv);
#ifdef CONFIG_USB_SAMSUNG_OMAP_NORPM
musb_start(musb);
musb_platform_pullup(musb, 1);
#endif
break;
case USB_EVENT_CHARGER:
dev_info(musb->controller, "Dedicated charger connect\n");
musb->is_ac_charger = true;
break;
case USB_EVENT_HOST_NONE:
#ifdef CONFIG_USB_SAMSUNG_OMAP_NORPM
dev_info(musb->controller, "USB host Disconnect. ID float\n");
if (!omap2430_async_resumed(musb)) {
dev_err(musb->controller, "async suspended. abnormal state.\n");
return;
}
musb_stop(musb);
musb_remove_hcd(musb);
if (data->interface_type == MUSB_INTERFACE_UTMI) {
omap2430_musb_set_vbus(musb, 0);
if (musb->xceiv->set_vbus)
otg_set_vbus(musb->xceiv, 0);
}
otg_shutdown(musb->xceiv);
musb_otg_core_reset(musb);
ret = omap2430_async_suspend(musb);
if (ret < 0)
return;
break;
#endif
case USB_EVENT_NONE:
if (musb->is_ac_charger) {
dev_info(musb->controller,
"Dedicated charger disconnect\n");
musb->is_ac_charger = false;
break;
}
dev_info(musb->controller, "VBUS Disconnect\n");
#ifndef CONFIG_USB_SAMSUNG_OMAP_NORPM
if (pm_runtime_suspended(musb->controller)) {
dev_err(musb->controller, "runtime pm suspended. abnormal state.\n");
return;
}
spin_lock_irqsave(&musb->lock, flags);
musb_g_disconnect(musb);
spin_unlock_irqrestore(&musb->lock, flags);
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (is_otg_enabled(musb) || is_peripheral_enabled(musb))
if (musb->gadget_driver)
#endif
{
pm_runtime_mark_last_busy(musb->controller);
pm_runtime_put_autosuspend(musb->controller);
}
if (data->interface_type == MUSB_INTERFACE_UTMI) {
omap2430_musb_set_vbus(musb, 0);
if (musb->xceiv->set_vbus)
otg_set_vbus(musb->xceiv, 0);
}
otg_shutdown(musb->xceiv);
#else
if (!omap2430_async_resumed(musb)) {
dev_err(musb->controller, "async suspended. abnormal state.\n");
return;
}
musb_platform_pullup(musb, 0);
spin_lock_irqsave(&musb->lock, flags);
musb_stop(musb);
musb_g_disconnect(musb);
musb_all_ep_flush(musb);
spin_unlock_irqrestore(&musb->lock, flags);
if (data->interface_type == MUSB_INTERFACE_UTMI)
omap2430_musb_set_vbus(musb, 0);
otg_shutdown(musb->xceiv);
musb_otg_core_reset(musb);
ret = omap2430_async_suspend(musb);
if (ret < 0)
return;
#endif
break;
default:
dev_info(musb->controller, "ID float\n");
}
}
static void musb_otg_notifier_work(struct work_struct *data_notifier_work)
{
u32 val;
struct musb_otg_work *otg_work =
container_of(data_notifier_work, struct musb_otg_work, work);
struct musb *musb = otg_work->musb;
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
struct omap_musb_board_data *data = pdata->board_data;
enum usb_xceiv_events xceiv_event = otg_work->xceiv_event;
static int last_event = -1;
kfree(otg_work);
/* avoid duplicate notifications */
if (last_event == xceiv_event) {
WARN(1, "Duplicated event(%d): ignored\n", xceiv_event);
return;
}
/* check for incorrect transitions */
if ((last_event == USB_EVENT_VBUS && xceiv_event == USB_EVENT_ID) ||
(last_event == USB_EVENT_ID && xceiv_event == USB_EVENT_VBUS)) {
WARN(1, "Incorrect transition (%d)->(%d)\n", last_event, xceiv_event);
}
/* store last event */
last_event = xceiv_event;
switch (xceiv_event) {
case USB_EVENT_ID:
dev_dbg(musb->controller, "ID GND\n");
if (is_otg_enabled(musb)) {
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (musb->gadget_driver) {
pm_runtime_get_sync(musb->controller);
val = musb_readl(musb->mregs, OTG_INTERFSEL);
otg_set_suspend(musb->xceiv, 1);
if (data->interface_type ==
MUSB_INTERFACE_UTMI) {
val &= ~ULPI_12PIN;
val |= UTMI_8BIT;
} else {
val |= ULPI_12PIN;
}
musb_writel(musb->mregs, OTG_INTERFSEL, val);
otg_set_suspend(musb->xceiv, 0);
otg_init(musb->xceiv);
omap2430_musb_set_vbus(musb, 1);
}
#endif
} else {
pm_runtime_get_sync(musb->controller);
val = musb_readl(musb->mregs, OTG_INTERFSEL);
otg_set_suspend(musb->xceiv, 1);
if (data->interface_type == MUSB_INTERFACE_UTMI) {
val &= ~ULPI_12PIN;
val |= UTMI_8BIT;
} else {
val |= ULPI_12PIN;
}
musb_writel(musb->mregs, OTG_INTERFSEL, val);
otg_set_suspend(musb->xceiv, 0);
otg_init(musb->xceiv);
omap2430_musb_set_vbus(musb, 1);
}
break;
case USB_EVENT_CHARGER:
dev_dbg(musb->controller, "Dedicated charger connect\n");
musb->is_ac_charger = true;
break;
case USB_EVENT_VBUS:
dev_dbg(musb->controller, "VBUS Connect\n");
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (musb->gadget_driver) {
pm_runtime_get_sync(musb->controller);
val = musb_readl(musb->mregs, OTG_INTERFSEL);
otg_set_suspend(musb->xceiv, 1);
if (data->interface_type ==
MUSB_INTERFACE_UTMI) {
val &= ~ULPI_12PIN;
val |= UTMI_8BIT;
} else {
val |= ULPI_12PIN;
}
musb_writel(musb->mregs, OTG_INTERFSEL, val);
otg_set_suspend(musb->xceiv, 0);
}
#endif
otg_init(musb->xceiv);
break;
case USB_EVENT_NONE:
if (musb->is_ac_charger) {
dev_dbg(musb->controller,
"Dedicated charger disconnect\n");
musb->is_ac_charger = false;
break;
}
dev_dbg(musb->controller, "VBUS Disconnect\n");
pm_runtime_get_sync(musb->controller);
if (data->interface_type == MUSB_INTERFACE_UTMI) {
omap2430_musb_set_vbus(musb, 0);
if (musb->xceiv->set_vbus)
otg_set_vbus(musb->xceiv, 0);
}
otg_shutdown(musb->xceiv);
otg_set_suspend(musb->xceiv, 1);
val = musb_readl(musb->mregs, OTG_INTERFSEL);
val |= ULPI_12PIN;
musb_writel(musb->mregs, OTG_INTERFSEL, val);
pm_runtime_mark_last_busy(musb->controller);
pm_runtime_put_autosuspend(musb->controller);
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (is_otg_enabled(musb) || is_peripheral_enabled(musb))
if (musb->gadget_driver)
#endif
pm_runtime_put_autosuspend(musb->controller);
break;
default:
dev_dbg(musb->controller, "ID float\n");
}
}
/* blocking notifier support */
void cpcap_musb_notifier_call(unsigned long event)
{
struct musb *musb = g_musb;
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
struct omap_musb_board_data *data = pdata->board_data;
static int hostmode;
u32 val;
u8 power;
switch (event) {
case USB_EVENT_ID:
DBG(1, "ID GND\n");
/* configure musb into smartidle with wakeup enabled
* smart standby mode.
*/
omap_pm_set_max_mpu_wakeup_lat(&pdata->musb_qos_request, 4000);
musb_writel(musb->mregs, OTG_FORCESTDBY, 0);
val = musb_readl(musb->mregs, OTG_SYSCONFIG);
if (cpu_is_omap44xx())
val |= SMARTIDLEWKUP | SMARTSTDBY | ENABLEWAKEUP;
else
val |= SMARTIDLE | SMARTSTDBY | ENABLEWAKEUP;
musb_writel(musb->mregs, OTG_SYSCONFIG, val);
if (data->interface_type == MUSB_INTERFACE_UTMI) {
phy_init();
otg_init(musb->xceiv);
/* enable VBUS valid, id groung*/
__raw_writel(AVALID | VBUSVALID, ctrl_base +
USBOTGHS_CONTROL);
val = __raw_readl(phymux_base +
USBA0_OTG_CE_PAD1_USBA0_OTG_DP);
val |= DP_WAKEUPENABLE;
__raw_writel(val, phymux_base +
USBA0_OTG_CE_PAD1_USBA0_OTG_DP);
}
hostmode = 1;
musb_start(musb);
musb_set_vbus(musb, 1);
break;
case USB_EVENT_VBUS:
DBG(1, "VBUS Connect\n");
/* configure musb into smartidle with wakeup enabled
* smart standby mode.
*/
musb_writel(musb->mregs, OTG_FORCESTDBY, 0);
val = musb_readl(musb->mregs, OTG_SYSCONFIG);
if (cpu_is_omap44xx())
val |= SMARTIDLEWKUP | SMARTSTDBY | ENABLEWAKEUP;
else
val |= SMARTIDLE | SMARTSTDBY | ENABLEWAKEUP;
musb_writel(musb->mregs, OTG_SYSCONFIG, val);
power = musb_readb(musb->mregs, MUSB_POWER);
power &= ~MUSB_POWER_SOFTCONN;
musb_writeb(musb->mregs, MUSB_POWER, power);
if (data->interface_type == MUSB_INTERFACE_UTMI) {
phy_init();
otg_init(musb->xceiv);
if (!hostmode) {
/* Enable VBUS Valid, AValid. Clear SESSEND.*/
__raw_writel(IDDIG | AVALID | VBUSVALID,
ctrl_base + USBOTGHS_CONTROL);
}
}
break;
case USB_EVENT_NONE:
DBG(1, "VBUS Disconnect\n");
if (data->interface_type == MUSB_INTERFACE_UTMI) {
/* enable this clock because in suspend interrupt
* handler phy clocks are disabled. If phy clocks are
* not enabled then DISCONNECT interrupt will not be
* reached to mentor
*/
otg_set_clk(musb->xceiv, 1);
__raw_writel(SESSEND | IDDIG, ctrl_base +
USBOTGHS_CONTROL);
if (musb->xceiv->set_vbus)
otg_set_vbus(musb->xceiv, 0);
otg_shutdown(musb->xceiv);
phy_shutdown();
}
/* configure in force idle/ standby */
musb_writel(musb->mregs, OTG_FORCESTDBY, 1);
val = musb_readl(musb->mregs, OTG_SYSCONFIG);
val &= ~(SMARTIDLEWKUP | SMARTSTDBY | ENABLEWAKEUP);
val |= FORCEIDLE | FORCESTDBY;
musb_writel(musb->mregs, OTG_SYSCONFIG, val);
omap_pm_set_max_mpu_wakeup_lat(&pdata->musb_qos_request, -1);
if (data->interface_type == MUSB_INTERFACE_UTMI) {
val = __raw_readl(phymux_base +
USBA0_OTG_CE_PAD1_USBA0_OTG_DP);
val &= ~DP_WAKEUPENABLE;
__raw_writel(val, phymux_base +
USBA0_OTG_CE_PAD1_USBA0_OTG_DP);
}
if (hostmode) {
musb_stop(musb);
musb_set_vbus(musb, 0);
}
hostmode = 0;
break;
default:
DBG(1, "ID float\n");
}
}
static void musb_otg_notifier_work(struct work_struct *data_notifier_work)
{
u32 val;
struct musb_otg_work *otg_work =
container_of(data_notifier_work, struct musb_otg_work, work);
struct musb *musb = otg_work->musb;
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
struct omap_musb_board_data *data = pdata->board_data;
enum usb_xceiv_events xceiv_event = otg_work->xceiv_event;
int status;
kfree(otg_work);
if (xceiv_event == xceiv_event_last) {
/* sync pm runtime if already got */
if (xceiv_event == USB_EVENT_VBUS || xceiv_event == USB_EVENT_ID) {
pm_runtime_put_sync(musb->controller);
}
}
xceiv_event_last = xceiv_event;
switch (xceiv_event) {
case USB_EVENT_ID:
dev_dbg(musb->controller, "ID GND\n");
pm_runtime_get_sync(musb->controller);
if (is_otg_enabled(musb)) {
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (musb->gadget_driver) {
val = musb_readl(musb->mregs, OTG_INTERFSEL);
if (data->interface_type ==
MUSB_INTERFACE_UTMI) {
val &= ~ULPI_12PIN;
val |= UTMI_8BIT;
} else {
val |= ULPI_12PIN;
}
musb_writel(musb->mregs, OTG_INTERFSEL, val);
otg_init(musb->xceiv);
omap2430_musb_set_vbus(musb, 1);
}
#endif
} else {
val = musb_readl(musb->mregs, OTG_INTERFSEL);
if (data->interface_type == MUSB_INTERFACE_UTMI) {
val &= ~ULPI_12PIN;
val |= UTMI_8BIT;
} else {
val |= ULPI_12PIN;
}
musb_writel(musb->mregs, OTG_INTERFSEL, val);
otg_init(musb->xceiv);
omap2430_musb_set_vbus(musb, 1);
}
break;
case USB_EVENT_CHARGER:
dev_dbg(musb->controller, "Dedicated charger connect\n");
musb->is_ac_charger = true;
break;
case USB_EVENT_VBUS:
dev_dbg(musb->controller, "VBUS Connect\n");
pm_runtime_get_sync(musb->controller);
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (musb->gadget_driver) {
val = musb_readl(musb->mregs, OTG_INTERFSEL);
if (data->interface_type ==
MUSB_INTERFACE_UTMI) {
val &= ~ULPI_12PIN;
val |= UTMI_8BIT;
} else {
val |= ULPI_12PIN;
}
musb_writel(musb->mregs, OTG_INTERFSEL, val);
}
#endif
otg_init(musb->xceiv);
break;
case USB_EVENT_NONE:
if (musb->is_ac_charger) {
dev_dbg(musb->controller,
"Dedicated charger disconnect\n");
musb->is_ac_charger = false;
break;
}
dev_dbg(musb->controller, "VBUS Disconnect\n");
// pm_runtime_get_sync(musb->controller);
if (data->interface_type == MUSB_INTERFACE_UTMI) {
omap2430_musb_set_vbus(musb, 0);
if (musb->xceiv->set_vbus)
otg_set_vbus(musb->xceiv, 0);
}
otg_shutdown(musb->xceiv);
val = musb_readl(musb->mregs, OTG_INTERFSEL);
val |= ULPI_12PIN;
musb_writel(musb->mregs, OTG_INTERFSEL, val);
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (is_otg_enabled(musb) || is_peripheral_enabled(musb)) {
if (musb->gadget_driver)
#endif
{
pm_runtime_mark_last_busy(musb->controller);
pm_runtime_put_autosuspend(musb->controller);
}
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
else {
pm_runtime_put_sync(musb->controller);
}
} else {
pm_runtime_put_sync(musb->controller);
}
#endif
break;
default:
dev_dbg(musb->controller, "ID float\n");
}
}
