static int __devinit omap_usb2_probe(struct platform_device *pdev)
{
struct omap_usb *phy;
struct usb_otg *otg;
struct clk *optclk;
phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
if (!phy) {
dev_err(&pdev->dev, "unable to allocate memory for USB2 PHY\n");
return -ENOMEM;
}
otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL);
if (!otg) {
dev_err(&pdev->dev, "unable to allocate memory for USB OTG\n");
return -ENOMEM;
}
phy->dev = &pdev->dev;
phy->phy.dev = phy->dev;
phy->phy.label = "omap-usb2";
phy->phy.set_suspend = omap_usb2_suspend;
phy->phy.otg = otg;
phy->control_dev = omap_control_get();
if (IS_ERR(phy->control_dev)) {
dev_err(&pdev->dev, "no control device present in system\n");
return PTR_ERR(phy->control_dev);
}
phy->is_suspended = 1;
omap4_usb_phy_power(phy->control_dev, 0);
otg->set_host = omap_usb_set_host;
otg->set_peripheral = omap_usb_set_peripheral;
otg->set_vbus = omap_usb_set_vbus;
otg->start_srp = omap_usb_start_srp;
otg->phy = &phy->phy;
phy->wkupclk = clk_get(phy->dev, "usb_phy_cm_clk32k");
optclk = clk_get(phy->dev, "usb_otg_ss_refclk960m");
if (!IS_ERR(optclk))
phy->optclk = optclk;
usb_add_phy(&phy->phy, USB_PHY_TYPE_USB2);
platform_set_drvdata(pdev, phy);
/* Start with disabled charger detection */
omap_usb_charger_enable(phy->control_dev, 0);
pm_runtime_enable(phy->dev);
return 0;
}
static int mv_u3d_phy_probe(struct platform_device *pdev)
{
struct mv_u3d_phy *mv_u3d_phy;
struct mv_usb_platform_data *pdata;
struct device *dev = &pdev->dev;
struct resource *res;
void __iomem *phy_base;
int ret;
pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "%s: no platform data defined\n", __func__);
return -EINVAL;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(dev, "missing mem resource\n");
return -ENODEV;
}
phy_base = devm_request_and_ioremap(dev, res);
if (!phy_base) {
dev_err(dev, "%s: register mapping failed\n", __func__);
return -ENXIO;
}
mv_u3d_phy = devm_kzalloc(dev, sizeof(*mv_u3d_phy), GFP_KERNEL);
if (!mv_u3d_phy)
return -ENOMEM;
mv_u3d_phy->dev = &pdev->dev;
mv_u3d_phy->plat = pdata;
mv_u3d_phy->base = phy_base;
mv_u3d_phy->phy.dev = mv_u3d_phy->dev;
mv_u3d_phy->phy.label = "mv-u3d-phy";
mv_u3d_phy->phy.init = mv_u3d_phy_init;
mv_u3d_phy->phy.shutdown = mv_u3d_phy_shutdown;
ret = usb_add_phy(&mv_u3d_phy->phy, USB_PHY_TYPE_USB3);
if (ret)
goto err;
if (!mv_u3d_phy->clk)
mv_u3d_phy->clk = clk_get(mv_u3d_phy->dev, "u3dphy");
platform_set_drvdata(pdev, mv_u3d_phy);
dev_info(&pdev->dev, "Initialized Marvell USB 3.0 PHY\n");
err:
return ret;
}
static int rcar_usb_phy_probe(struct platform_device *pdev)
{
struct rcar_usb_phy_priv *priv;
struct resource *res0, *res1;
struct device *dev = &pdev->dev;
void __iomem *reg0, *reg1 = NULL;
int ret;
if (!dev_get_platdata(&pdev->dev)) {
dev_err(dev, "No platform data\n");
return -EINVAL;
}
res0 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
reg0 = devm_ioremap_resource(dev, res0);
if (IS_ERR(reg0))
return PTR_ERR(reg0);
res1 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (res1) {
reg1 = devm_ioremap_resource(dev, res1);
if (IS_ERR(reg1))
return PTR_ERR(reg1);
}
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv) {
dev_err(dev, "priv data allocation error\n");
return -ENOMEM;
}
priv->reg0 = reg0;
priv->reg1 = reg1;
priv->counter = 0;
priv->phy.dev = dev;
priv->phy.label = dev_name(dev);
priv->phy.init = rcar_usb_phy_init;
priv->phy.shutdown = rcar_usb_phy_shutdown;
spin_lock_init(&priv->lock);
ret = usb_add_phy(&priv->phy, USB_PHY_TYPE_USB2);
if (ret < 0) {
dev_err(dev, "usb phy addition error\n");
return ret;
}
platform_set_drvdata(pdev, priv);
return ret;
}
static int __devinit nop_usb_xceiv_probe(struct platform_device *pdev)
{
struct nop_usb_xceiv *nop;
int err;
nop = kzalloc(sizeof *nop, GFP_KERNEL);
if (!nop)
return -ENOMEM;
nop->phy.otg = kzalloc(sizeof *nop->phy.otg, GFP_KERNEL);
if (!nop->phy.otg) {
kfree(nop);
return -ENOMEM;
}
nop->dev = &pdev->dev;
nop->phy.dev = nop->dev;
nop->phy.label = "nop-xceiv";
nop->phy.set_suspend = nop_set_suspend;
nop->phy.state = OTG_STATE_UNDEFINED;
nop->phy.otg->phy = &nop->phy;
nop->phy.otg->set_host = nop_set_host;
nop->phy.otg->set_peripheral = nop_set_peripheral;
err = usb_add_phy(&nop->phy, USB_PHY_TYPE_USB2);
if (err) {
dev_err(&pdev->dev, "can't register transceiver, err: %d\n",
err);
goto exit;
}
platform_set_drvdata(pdev, nop);
ATOMIC_INIT_NOTIFIER_HEAD(&nop->phy.notifier);
return 0;
exit:
kfree(nop->phy.otg);
kfree(nop);
return err;
}
static int tahvo_usb_probe(struct platform_device *pdev)
{
struct retu_dev *rdev = dev_get_drvdata(pdev->dev.parent);
struct tahvo_usb *tu;
int ret;
tu = devm_kzalloc(&pdev->dev, sizeof(*tu), GFP_KERNEL);
if (!tu)
return -ENOMEM;
tu->phy.otg = devm_kzalloc(&pdev->dev, sizeof(*tu->phy.otg),
GFP_KERNEL);
if (!tu->phy.otg)
return -ENOMEM;
tu->pt_dev = pdev;
/* Default mode */
#ifdef CONFIG_TAHVO_USB_HOST_BY_DEFAULT
tu->tahvo_mode = TAHVO_MODE_HOST;
#else
tu->tahvo_mode = TAHVO_MODE_PERIPHERAL;
#endif
mutex_init(&tu->serialize);
tu->ick = devm_clk_get(&pdev->dev, "usb_l4_ick");
if (!IS_ERR(tu->ick))
clk_enable(tu->ick);
/*
* Set initial state, so that we generate kevents only on state changes.
*/
tu->vbus_state = retu_read(rdev, TAHVO_REG_IDSR) & TAHVO_STAT_VBUS;
tu->extcon.name = DRIVER_NAME;
tu->extcon.supported_cable = tahvo_cable;
tu->extcon.dev.parent = &pdev->dev;
ret = extcon_dev_register(&tu->extcon);
if (ret) {
dev_err(&pdev->dev, "could not register extcon device: %d\n",
ret);
goto err_disable_clk;
}
/* Set the initial cable state. */
extcon_set_cable_state(&tu->extcon, "USB-HOST",
tu->tahvo_mode == TAHVO_MODE_HOST);
extcon_set_cable_state(&tu->extcon, "USB", tu->vbus_state);
/* Create OTG interface */
tahvo_usb_power_off(tu);
tu->phy.dev = &pdev->dev;
tu->phy.state = OTG_STATE_UNDEFINED;
tu->phy.label = DRIVER_NAME;
tu->phy.set_suspend = tahvo_usb_set_suspend;
tu->phy.otg->phy = &tu->phy;
tu->phy.otg->set_host = tahvo_usb_set_host;
tu->phy.otg->set_peripheral = tahvo_usb_set_peripheral;
ret = usb_add_phy(&tu->phy, USB_PHY_TYPE_USB2);
if (ret < 0) {
dev_err(&pdev->dev, "cannot register USB transceiver: %d\n",
ret);
goto err_extcon_unreg;
}
dev_set_drvdata(&pdev->dev, tu);
tu->irq = platform_get_irq(pdev, 0);
ret = request_threaded_irq(tu->irq, NULL, tahvo_usb_vbus_interrupt, 0,
"tahvo-vbus", tu);
if (ret) {
dev_err(&pdev->dev, "could not register tahvo-vbus irq: %d\n",
ret);
goto err_remove_phy;
}
/* Attributes */
ret = sysfs_create_group(&pdev->dev.kobj, &tahvo_attr_group);
if (ret) {
dev_err(&pdev->dev, "cannot create sysfs group: %d\n", ret);
goto err_free_irq;
}
return 0;
err_free_irq:
free_irq(tu->irq, tu);
err_remove_phy:
usb_remove_phy(&tu->phy);
err_extcon_unreg:
extcon_dev_unregister(&tu->extcon);
err_disable_clk:
if (!IS_ERR(tu->ick))
clk_disable(tu->ick);
return ret;
}
static int mv_otg_probe(struct platform_device *pdev)
{
struct mv_usb_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct mv_otg *mvotg;
struct usb_otg *otg;
struct resource *r;
int retval = 0, i;
if (pdata == NULL) {
dev_err(&pdev->dev, "failed to get platform data\n");
return -ENODEV;
}
mvotg = devm_kzalloc(&pdev->dev, sizeof(*mvotg), GFP_KERNEL);
if (!mvotg) {
dev_err(&pdev->dev, "failed to allocate memory!\n");
return -ENOMEM;
}
otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL);
if (!otg)
return -ENOMEM;
platform_set_drvdata(pdev, mvotg);
mvotg->pdev = pdev;
mvotg->pdata = pdata;
mvotg->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(mvotg->clk))
return PTR_ERR(mvotg->clk);
mvotg->qwork = create_singlethread_workqueue("mv_otg_queue");
if (!mvotg->qwork) {
dev_dbg(&pdev->dev, "cannot create workqueue for OTG\n");
return -ENOMEM;
}
INIT_DELAYED_WORK(&mvotg->work, mv_otg_work);
/* OTG common part */
mvotg->pdev = pdev;
mvotg->phy.dev = &pdev->dev;
mvotg->phy.otg = otg;
mvotg->phy.label = driver_name;
mvotg->phy.state = OTG_STATE_UNDEFINED;
otg->phy = &mvotg->phy;
otg->set_host = mv_otg_set_host;
otg->set_peripheral = mv_otg_set_peripheral;
otg->set_vbus = mv_otg_set_vbus;
for (i = 0; i < OTG_TIMER_NUM; i++)
init_timer(&mvotg->otg_ctrl.timer[i]);
r = platform_get_resource_byname(mvotg->pdev,
IORESOURCE_MEM, "phyregs");
if (r == NULL) {
dev_err(&pdev->dev, "no phy I/O memory resource defined\n");
retval = -ENODEV;
goto err_destroy_workqueue;
}
mvotg->phy_regs = devm_ioremap(&pdev->dev, r->start, resource_size(r));
if (mvotg->phy_regs == NULL) {
dev_err(&pdev->dev, "failed to map phy I/O memory\n");
retval = -EFAULT;
goto err_destroy_workqueue;
}
r = platform_get_resource_byname(mvotg->pdev,
IORESOURCE_MEM, "capregs");
if (r == NULL) {
dev_err(&pdev->dev, "no I/O memory resource defined\n");
retval = -ENODEV;
goto err_destroy_workqueue;
}
mvotg->cap_regs = devm_ioremap(&pdev->dev, r->start, resource_size(r));
if (mvotg->cap_regs == NULL) {
dev_err(&pdev->dev, "failed to map I/O memory\n");
retval = -EFAULT;
goto err_destroy_workqueue;
}
/* we will acces controller register, so enable the udc controller */
retval = mv_otg_enable_internal(mvotg);
if (retval) {
dev_err(&pdev->dev, "mv otg enable error %d\n", retval);
goto err_destroy_workqueue;
}
mvotg->op_regs =
(struct mv_otg_regs __iomem *) ((unsigned long) mvotg->cap_regs
+ (readl(mvotg->cap_regs) & CAPLENGTH_MASK));
if (pdata->id) {
retval = devm_request_threaded_irq(&pdev->dev, pdata->id->irq,
NULL, mv_otg_inputs_irq,
IRQF_ONESHOT, "id", mvotg);
if (retval) {
dev_info(&pdev->dev,
"Failed to request irq for ID\n");
pdata->id = NULL;
}
}
if (pdata->vbus) {
mvotg->clock_gating = 1;
retval = devm_request_threaded_irq(&pdev->dev, pdata->vbus->irq,
NULL, mv_otg_inputs_irq,
IRQF_ONESHOT, "vbus", mvotg);
if (retval) {
dev_info(&pdev->dev,
"Failed to request irq for VBUS, "
"disable clock gating\n");
mvotg->clock_gating = 0;
pdata->vbus = NULL;
}
}
if (pdata->disable_otg_clock_gating)
mvotg->clock_gating = 0;
mv_otg_reset(mvotg);
mv_otg_init_irq(mvotg);
r = platform_get_resource(mvotg->pdev, IORESOURCE_IRQ, 0);
if (r == NULL) {
dev_err(&pdev->dev, "no IRQ resource defined\n");
retval = -ENODEV;
goto err_disable_clk;
}
mvotg->irq = r->start;
if (devm_request_irq(&pdev->dev, mvotg->irq, mv_otg_irq, IRQF_SHARED,
driver_name, mvotg)) {
dev_err(&pdev->dev, "Request irq %d for OTG failed\n",
mvotg->irq);
mvotg->irq = 0;
retval = -ENODEV;
goto err_disable_clk;
}
retval = usb_add_phy(&mvotg->phy, USB_PHY_TYPE_USB2);
if (retval < 0) {
dev_err(&pdev->dev, "can't register transceiver, %d\n",
retval);
goto err_disable_clk;
}
retval = sysfs_create_group(&pdev->dev.kobj, &inputs_attr_group);
if (retval < 0) {
dev_dbg(&pdev->dev,
"Can't register sysfs attr group: %d\n", retval);
goto err_remove_phy;
}
spin_lock_init(&mvotg->wq_lock);
if (spin_trylock(&mvotg->wq_lock)) {
mv_otg_run_state_machine(mvotg, 2 * HZ);
spin_unlock(&mvotg->wq_lock);
}
dev_info(&pdev->dev,
"successful probe OTG device %s clock gating.\n",
mvotg->clock_gating ? "with" : "without");
return 0;
err_remove_phy:
usb_remove_phy(&mvotg->phy);
err_disable_clk:
mv_otg_disable_internal(mvotg);
err_destroy_workqueue:
flush_workqueue(mvotg->qwork);
destroy_workqueue(mvotg->qwork);
return retval;
}
static int samsung_usbphy_probe(struct platform_device *pdev)
{
struct samsung_usbphy *sphy;
struct usb_otg *otg;
struct samsung_usbphy_data *pdata = pdev->dev.platform_data;
const struct samsung_usbphy_drvdata *drv_data;
struct device *dev = &pdev->dev;
struct resource *phy_mem;
void __iomem *phy_base;
struct clk *clk;
int ret;
phy_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!phy_mem) {
dev_err(dev, "%s: missing mem resource\n", __func__);
return -ENODEV;
}
phy_base = devm_ioremap_resource(dev, phy_mem);
if (IS_ERR(phy_base))
return PTR_ERR(phy_base);
sphy = devm_kzalloc(dev, sizeof(*sphy), GFP_KERNEL);
if (!sphy)
return -ENOMEM;
otg = devm_kzalloc(dev, sizeof(*otg), GFP_KERNEL);
if (!otg)
return -ENOMEM;
drv_data = samsung_usbphy_get_driver_data(pdev);
if (drv_data->cpu_type == TYPE_EXYNOS5250)
clk = devm_clk_get(dev, "usbhost");
else
clk = devm_clk_get(dev, "otg");
if (IS_ERR(clk)) {
dev_err(dev, "Failed to get otg clock\n");
return PTR_ERR(clk);
}
sphy->dev = dev;
if (dev->of_node) {
ret = samsung_usbphy_parse_dt(sphy);
if (ret < 0)
return ret;
} else {
if (!pdata) {
dev_err(dev, "no platform data specified\n");
return -EINVAL;
}
}
sphy->plat = pdata;
sphy->regs = phy_base;
sphy->clk = clk;
sphy->drv_data = drv_data;
sphy->phy.dev = sphy->dev;
sphy->phy.label = "samsung-usbphy";
sphy->phy.init = samsung_usbphy_init;
sphy->phy.shutdown = samsung_usbphy_shutdown;
sphy->ref_clk_freq = samsung_usbphy_get_refclk_freq(sphy);
sphy->phy.otg = otg;
sphy->phy.otg->phy = &sphy->phy;
sphy->phy.otg->set_host = samsung_usbphy_set_host;
spin_lock_init(&sphy->lock);
platform_set_drvdata(pdev, sphy);
return usb_add_phy(&sphy->phy, USB_PHY_TYPE_USB2);
}
static struct dwc_otg2 *dwc3_otg_alloc(struct device *dev)
{
struct dwc_otg2 *otg = NULL;
struct usb_phy *usb_phy;
int retval;
otg = kzalloc(sizeof(*otg), GFP_KERNEL);
if (!otg) {
dev_err(dev, "Alloc otg failed\n");
return NULL;
}
the_transceiver = otg;
otg->otg_data = dev->platform_data;
usb_phy = &otg->usb2_phy;
otg->otg.phy = usb_phy;
otg->usb2_phy.otg = &otg->otg;
otg->dev = dev;
otg->usb3_phy.dev = otg->dev;
otg->usb3_phy.label = "dwc-usb3-phy";
otg->usb3_phy.state = OTG_STATE_UNDEFINED;
otg->usb3_phy.otg = &otg->otg;
otg->usb2_phy.dev = otg->dev;
otg->usb2_phy.label = "dwc-usb2-phy";
otg->usb2_phy.state = OTG_STATE_UNDEFINED;
otg->usb2_phy.set_power = dwc3_otg_pdata->set_power;
otg->usb2_phy.get_chrg_status = dwc_otg_get_chrg_status;
otg->usb2_phy.io_ops = &dwc_otg_io_ops;
otg->usb2_phy.otg = &otg->otg;
otg->otg.set_host = dwc_otg2_set_host;
otg->otg.set_peripheral = dwc_otg2_set_peripheral;
ATOMIC_INIT_NOTIFIER_HEAD(&otg->usb2_phy.notifier);
ATOMIC_INIT_NOTIFIER_HEAD(&otg->usb3_phy.notifier);
otg->state = DWC_STATE_B_IDLE;
spin_lock_init(&otg->lock);
init_waitqueue_head(&otg->main_wq);
/* Register otg notifier to monitor ID and VBus change events */
otg->nb.notifier_call = dwc_otg_handle_notification;
usb_register_notifier(&otg->usb2_phy, &otg->nb);
otg_dbg(otg, "Version: %s\n", VERSION);
retval = usb_add_phy(&otg->usb2_phy, USB_PHY_TYPE_USB2);
if (retval) {
otg_err(otg, "can't register transceiver, err: %d\n",
retval);
goto err1;
}
retval = usb_add_phy(&otg->usb3_phy, USB_PHY_TYPE_USB3);
if (retval) {
otg_err(otg, "can't register transceiver, err: %d\n",
retval);
goto err2;
}
return otg;
err2:
usb_remove_phy(&otg->usb2_phy);
err1:
kfree(otg);
otg = NULL;
return otg;
}
static int
isp1301_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
{
int status;
struct isp1301 *isp;
if (the_transceiver)
return 0;
isp = kzalloc(sizeof *isp, GFP_KERNEL);
if (!isp)
return 0;
isp->phy.otg = kzalloc(sizeof *isp->phy.otg, GFP_KERNEL);
if (!isp->phy.otg) {
kfree(isp);
return 0;
}
INIT_WORK(&isp->work, isp1301_work);
init_timer(&isp->timer);
isp->timer.function = isp1301_timer;
isp->timer.data = (unsigned long) isp;
i2c_set_clientdata(i2c, isp);
isp->client = i2c;
/* verify the chip (shouldn't be necessary) */
status = isp1301_get_u16(isp, ISP1301_VENDOR_ID);
if (status != I2C_VENDOR_ID_PHILIPS) {
dev_dbg(&i2c->dev, "not philips id: %d\n", status);
goto fail;
}
status = isp1301_get_u16(isp, ISP1301_PRODUCT_ID);
if (status != I2C_PRODUCT_ID_PHILIPS_1301) {
dev_dbg(&i2c->dev, "not isp1301, %d\n", status);
goto fail;
}
isp->i2c_release = i2c->dev.release;
i2c->dev.release = isp1301_release;
/* initial development used chiprev 2.00 */
status = i2c_smbus_read_word_data(i2c, ISP1301_BCD_DEVICE);
dev_info(&i2c->dev, "chiprev %x.%02x, driver " DRIVER_VERSION "\n",
status >> 8, status & 0xff);
/* make like power-on reset */
isp1301_clear_bits(isp, ISP1301_MODE_CONTROL_1, MC1_MASK);
isp1301_set_bits(isp, ISP1301_MODE_CONTROL_2, MC2_BI_DI);
isp1301_clear_bits(isp, ISP1301_MODE_CONTROL_2, ~MC2_BI_DI);
isp1301_set_bits(isp, ISP1301_OTG_CONTROL_1,
OTG1_DM_PULLDOWN | OTG1_DP_PULLDOWN);
isp1301_clear_bits(isp, ISP1301_OTG_CONTROL_1,
~(OTG1_DM_PULLDOWN | OTG1_DP_PULLDOWN));
isp1301_clear_bits(isp, ISP1301_INTERRUPT_LATCH, ~0);
isp1301_clear_bits(isp, ISP1301_INTERRUPT_FALLING, ~0);
isp1301_clear_bits(isp, ISP1301_INTERRUPT_RISING, ~0);
#ifdef CONFIG_USB_OTG
status = otg_bind(isp);
if (status < 0) {
dev_dbg(&i2c->dev, "can't bind OTG\n");
goto fail;
}
#endif
if (machine_is_omap_h2()) {
/* full speed signaling by default */
isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1,
MC1_SPEED);
isp1301_set_bits(isp, ISP1301_MODE_CONTROL_2,
MC2_SPD_SUSP_CTRL);
/* IRQ wired at M14 */
omap_cfg_reg(M14_1510_GPIO2);
if (gpio_request(2, "isp1301") == 0)
gpio_direction_input(2);
isp->irq_type = IRQF_TRIGGER_FALLING;
}
status = request_irq(i2c->irq, isp1301_irq,
isp->irq_type, DRIVER_NAME, isp);
if (status < 0) {
dev_dbg(&i2c->dev, "can't get IRQ %d, err %d\n",
i2c->irq, status);
goto fail;
}
isp->phy.dev = &i2c->dev;
isp->phy.label = DRIVER_NAME;
isp->phy.set_power = isp1301_set_power,
isp->phy.otg->phy = &isp->phy;
isp->phy.otg->set_host = isp1301_set_host,
isp->phy.otg->set_peripheral = isp1301_set_peripheral,
isp->phy.otg->start_srp = isp1301_start_srp,
isp->phy.otg->start_hnp = isp1301_start_hnp,
enable_vbus_draw(isp, 0);
power_down(isp);
the_transceiver = isp;
#ifdef CONFIG_USB_OTG
update_otg1(isp, isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE));
update_otg2(isp, isp1301_get_u8(isp, ISP1301_OTG_STATUS));
#endif
dump_regs(isp, __func__);
#ifdef VERBOSE
mod_timer(&isp->timer, jiffies + TIMER_JIFFIES);
dev_dbg(&i2c->dev, "scheduled timer, %d min\n", TIMER_MINUTES);
#endif
status = usb_add_phy(&isp->phy, USB_PHY_TYPE_USB2);
if (status < 0)
dev_err(&i2c->dev, "can't register transceiver, %d\n",
status);
return 0;
fail:
kfree(isp->phy.otg);
kfree(isp);
return -ENODEV;
}
static int __init gpio_vbus_probe(struct platform_device *pdev)
{
struct gpio_vbus_mach_info *pdata = pdev->dev.platform_data;
struct gpio_vbus_data *gpio_vbus;
struct resource *res;
int err, gpio, irq;
if (!pdata || !gpio_is_valid(pdata->gpio_vbus))
return -EINVAL;
gpio = pdata->gpio_vbus;
gpio_vbus = kzalloc(sizeof(struct gpio_vbus_data), GFP_KERNEL);
if (!gpio_vbus)
return -ENOMEM;
gpio_vbus->phy.otg = kzalloc(sizeof(struct usb_otg), GFP_KERNEL);
if (!gpio_vbus->phy.otg) {
kfree(gpio_vbus);
return -ENOMEM;
}
platform_set_drvdata(pdev, gpio_vbus);
gpio_vbus->dev = &pdev->dev;
gpio_vbus->phy.label = "gpio-vbus";
gpio_vbus->phy.set_power = gpio_vbus_set_power;
gpio_vbus->phy.set_suspend = gpio_vbus_set_suspend;
gpio_vbus->phy.state = OTG_STATE_UNDEFINED;
gpio_vbus->phy.otg->phy = &gpio_vbus->phy;
gpio_vbus->phy.otg->set_peripheral = gpio_vbus_set_peripheral;
err = gpio_request(gpio, "vbus_detect");
if (err) {
dev_err(&pdev->dev, "can't request vbus gpio %d, err: %d\n",
gpio, err);
goto err_gpio;
}
gpio_direction_input(gpio);
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (res) {
irq = res->start;
res->flags &= IRQF_TRIGGER_MASK;
res->flags |= IRQF_SAMPLE_RANDOM | IRQF_SHARED;
} else
irq = gpio_to_irq(gpio);
/* if data line pullup is in use, initialize it to "not pulling up" */
gpio = pdata->gpio_pullup;
if (gpio_is_valid(gpio)) {
err = gpio_request(gpio, "udc_pullup");
if (err) {
dev_err(&pdev->dev,
"can't request pullup gpio %d, err: %d\n",
gpio, err);
gpio_free(pdata->gpio_vbus);
goto err_gpio;
}
gpio_direction_output(gpio, pdata->gpio_pullup_inverted);
}
err = request_irq(irq, gpio_vbus_irq, VBUS_IRQ_FLAGS,
"vbus_detect", pdev);
if (err) {
dev_err(&pdev->dev, "can't request irq %i, err: %d\n",
irq, err);
goto err_irq;
}
ATOMIC_INIT_NOTIFIER_HEAD(&gpio_vbus->phy.notifier);
INIT_WORK(&gpio_vbus->work, gpio_vbus_work);
gpio_vbus->vbus_draw = regulator_get(&pdev->dev, "vbus_draw");
if (IS_ERR(gpio_vbus->vbus_draw)) {
dev_dbg(&pdev->dev, "can't get vbus_draw regulator, err: %ld\n",
PTR_ERR(gpio_vbus->vbus_draw));
gpio_vbus->vbus_draw = NULL;
}
/* only active when a gadget is registered */
err = usb_add_phy(&gpio_vbus->phy, USB_PHY_TYPE_USB2);
if (err) {
dev_err(&pdev->dev, "can't register transceiver, err: %d\n",
err);
goto err_otg;
}
return 0;
err_otg:
free_irq(irq, &pdev->dev);
err_irq:
if (gpio_is_valid(pdata->gpio_pullup))
gpio_free(pdata->gpio_pullup);
gpio_free(pdata->gpio_vbus);
err_gpio:
platform_set_drvdata(pdev, NULL);
kfree(gpio_vbus->phy.otg);
kfree(gpio_vbus);
return err;
}
