예제 #1
0
static int am335x_phy_probe(struct platform_device *pdev)
{
	struct am335x_phy *am_phy;
	struct device *dev = &pdev->dev;
	int ret;

	am_phy = devm_kzalloc(dev, sizeof(*am_phy), GFP_KERNEL);
	if (!am_phy)
		return -ENOMEM;

	am_phy->phy_ctrl = am335x_get_phy_control(dev);
	if (!am_phy->phy_ctrl)
		return -EPROBE_DEFER;
	am_phy->id = of_alias_get_id(pdev->dev.of_node, "phy");
	if (am_phy->id < 0) {
		dev_err(&pdev->dev, "Missing PHY id: %d\n", am_phy->id);
		return am_phy->id;
	}

	ret = usb_phy_gen_create_phy(dev, &am_phy->usb_phy_gen, NULL);
	if (ret)
		return ret;

	ret = usb_add_phy_dev(&am_phy->usb_phy_gen.phy);
	if (ret)
		return ret;
	am_phy->usb_phy_gen.phy.init = am335x_init;
	am_phy->usb_phy_gen.phy.shutdown = am335x_shutdown;

	platform_set_drvdata(pdev, am_phy);

	return 0;
}
예제 #2
0
static int usb_phy_gen_xceiv_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct usb_phy_gen_xceiv	*nop;
	int err;

	nop = devm_kzalloc(dev, sizeof(*nop), GFP_KERNEL);
	if (!nop)
		return -ENOMEM;

	err = usb_phy_gen_create_phy(dev, nop, dev_get_platdata(&pdev->dev));
	if (err)
		return err;

	nop->phy.init		= usb_gen_phy_init;
	nop->phy.shutdown	= usb_gen_phy_shutdown;

	err = usb_add_phy_dev(&nop->phy);
	if (err) {
		dev_err(&pdev->dev, "can't register transceiver, err: %d\n",
			err);
		return err;
	}

	platform_set_drvdata(pdev, nop);

	return 0;
}
예제 #3
0
static int keystone_usbphy_probe(struct platform_device *pdev)
{
	struct device		*dev = &pdev->dev;
	struct keystone_usbphy	*k_phy;
	struct resource		*res;
	int ret;

	k_phy = devm_kzalloc(dev, sizeof(*k_phy), GFP_KERNEL);
	if (!k_phy)
		return -ENOMEM;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	k_phy->phy_ctrl = devm_ioremap_resource(dev, res);
	if (IS_ERR(k_phy->phy_ctrl))
		return PTR_ERR(k_phy->phy_ctrl);

	ret = usb_phy_gen_create_phy(dev, &k_phy->usb_phy_gen, NULL);
	if (ret)
		return ret;

	k_phy->usb_phy_gen.phy.init = keystone_usbphy_init;
	k_phy->usb_phy_gen.phy.shutdown = keystone_usbphy_shutdown;

	platform_set_drvdata(pdev, k_phy);

	ret = usb_add_phy_dev(&k_phy->usb_phy_gen.phy);
	if (ret)
		return ret;

	return 0;
}
예제 #4
0
static int isp1301_probe(struct i2c_client *client,
			 const struct i2c_device_id *i2c_id)
{
	struct isp1301 *isp;
	struct usb_phy *phy;

	isp = devm_kzalloc(&client->dev, sizeof(*isp), GFP_KERNEL);
	if (!isp)
		return -ENOMEM;

	isp->client = client;
	mutex_init(&isp->mutex);

	phy = &isp->phy;
	phy->label = DRV_NAME;
	phy->init = isp1301_phy_init;
	phy->set_vbus = isp1301_phy_set_vbus;
	phy->type = USB_PHY_TYPE_USB2;

	i2c_set_clientdata(client, isp);
	usb_add_phy_dev(phy);

	isp1301_i2c_client = client;

	return 0;
}
static int usb_phy_gen_xceiv_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct usb_phy_gen_xceiv_platform_data *pdata =
			dev_get_platdata(&pdev->dev);
	struct usb_phy_gen_xceiv	*nop;
	enum usb_phy_type	type = USB_PHY_TYPE_USB2;
	int err;
	u32 clk_rate = 0;
	bool needs_vcc = false;

	nop = devm_kzalloc(dev, sizeof(*nop), GFP_KERNEL);
	if (!nop)
		return -ENOMEM;

	nop->reset_active_low = true;	/* default behaviour */

	if (dev->of_node) {
		struct device_node *node = dev->of_node;
		enum of_gpio_flags flags;

		if (of_property_read_u32(node, "clock-frequency", &clk_rate))
			clk_rate = 0;

		needs_vcc = of_property_read_bool(node, "vcc-supply");
		nop->gpio_reset = of_get_named_gpio_flags(node, "reset-gpios",
								0, &flags);
		if (nop->gpio_reset == -EPROBE_DEFER)
			return -EPROBE_DEFER;

		nop->reset_active_low = flags & OF_GPIO_ACTIVE_LOW;

	} else if (pdata) {
		type = pdata->type;
		clk_rate = pdata->clk_rate;
		needs_vcc = pdata->needs_vcc;
		nop->gpio_reset = pdata->gpio_reset;
	}

	err = usb_phy_gen_create_phy(dev, nop, type, clk_rate, needs_vcc);
	if (err)
		return err;

	nop->phy.init		= usb_gen_phy_init;
	nop->phy.shutdown	= usb_gen_phy_shutdown;

	err = usb_add_phy_dev(&nop->phy);
	if (err) {
		dev_err(&pdev->dev, "can't register transceiver, err: %d\n",
			err);
		return err;
	}

	platform_set_drvdata(pdev, nop);

	return 0;

	return err;
}
static int samsung_usb3phy_probe(struct platform_device *pdev)
{
	struct samsung_usbphy *sphy;
	struct samsung_usbphy_data *pdata = dev_get_platdata(&pdev->dev);
	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);
	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;

	clk = devm_clk_get(dev, "usbdrd30");
	if (IS_ERR(clk)) {
		dev_err(dev, "Failed to get device 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->phy.dev		= sphy->dev;
	sphy->phy.label		= "samsung-usb3phy";
	sphy->phy.type		= USB_PHY_TYPE_USB3;
	sphy->phy.init		= samsung_usb3phy_init;
	sphy->phy.shutdown	= samsung_usb3phy_shutdown;
	sphy->drv_data		= samsung_usbphy_get_driver_data(pdev);

	sphy->ref_clk_freq = samsung_usbphy_get_refclk_freq(sphy);
	if (sphy->ref_clk_freq < 0)
		return -EINVAL;

	spin_lock_init(&sphy->lock);

	platform_set_drvdata(pdev, sphy);

	return usb_add_phy_dev(&sphy->phy);
}
예제 #7
0
static int mxs_phy_probe(struct platform_device *pdev)
{
	struct resource *res;
	void __iomem *base;
	struct clk *clk;
	struct mxs_phy *mxs_phy;
	int ret;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!res) {
		dev_err(&pdev->dev, "can't get device resources\n");
		return -ENOENT;
	}

	base = devm_ioremap_resource(&pdev->dev, res);
	if (IS_ERR(base))
		return PTR_ERR(base);

	clk = devm_clk_get(&pdev->dev, NULL);
	if (IS_ERR(clk)) {
		dev_err(&pdev->dev,
			"can't get the clock, err=%ld", PTR_ERR(clk));
		return PTR_ERR(clk);
	}

	mxs_phy = devm_kzalloc(&pdev->dev, sizeof(*mxs_phy), GFP_KERNEL);
	if (!mxs_phy) {
		dev_err(&pdev->dev, "Failed to allocate USB PHY structure!\n");
		return -ENOMEM;
	}

	mxs_phy->phy.io_priv		= base;
	mxs_phy->phy.dev		= &pdev->dev;
	mxs_phy->phy.label		= DRIVER_NAME;
	mxs_phy->phy.init		= mxs_phy_init;
	mxs_phy->phy.shutdown		= mxs_phy_shutdown;
	mxs_phy->phy.set_suspend	= mxs_phy_suspend;
	mxs_phy->phy.notify_connect	= mxs_phy_on_connect;
	mxs_phy->phy.notify_disconnect	= mxs_phy_on_disconnect;

	ATOMIC_INIT_NOTIFIER_HEAD(&mxs_phy->phy.notifier);

	mxs_phy->clk = clk;

	platform_set_drvdata(pdev, &mxs_phy->phy);

	ret = usb_add_phy_dev(&mxs_phy->phy);
	if (ret)
		return ret;

	return 0;
}
예제 #8
0
파일: phy-am335x.c 프로젝트: AK101111/linux
static int am335x_phy_probe(struct platform_device *pdev)
{
	struct am335x_phy *am_phy;
	struct device *dev = &pdev->dev;
	int ret;

	am_phy = devm_kzalloc(dev, sizeof(*am_phy), GFP_KERNEL);
	if (!am_phy)
		return -ENOMEM;

	am_phy->phy_ctrl = am335x_get_phy_control(dev);
	if (!am_phy->phy_ctrl)
		return -EPROBE_DEFER;

	am_phy->id = of_alias_get_id(pdev->dev.of_node, "phy");
	if (am_phy->id < 0) {
		dev_err(&pdev->dev, "Missing PHY id: %d\n", am_phy->id);
		return am_phy->id;
	}

	am_phy->dr_mode = of_usb_get_dr_mode_by_phy(pdev->dev.of_node, -1);

	ret = usb_phy_gen_create_phy(dev, &am_phy->usb_phy_gen, NULL);
	if (ret)
		return ret;

	ret = usb_add_phy_dev(&am_phy->usb_phy_gen.phy);
	if (ret)
		return ret;
	am_phy->usb_phy_gen.phy.init = am335x_init;
	am_phy->usb_phy_gen.phy.shutdown = am335x_shutdown;

	platform_set_drvdata(pdev, am_phy);
	device_init_wakeup(dev, true);

	/*
	 * If we leave PHY wakeup enabled then AM33XX wakes up
	 * immediately from DS0. To avoid this we mark dev->power.can_wakeup
	 * to false. The same is checked in suspend routine to decide
	 * on whether to enable PHY wakeup or not.
	 * PHY wakeup works fine in standby mode, there by allowing us to
	 * handle remote wakeup, wakeup on disconnect and connect.
	 */

	device_set_wakeup_enable(dev, false);
	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, false);

	return 0;
}
예제 #9
0
static int usb_phy_generic_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct usb_phy_generic	*nop;
	int err;

	nop = devm_kzalloc(dev, sizeof(*nop), GFP_KERNEL);
	if (!nop)
		return -ENOMEM;

	err = usb_phy_gen_create_phy(dev, nop, dev_get_platdata(&pdev->dev));
	if (err)
		return err;
	if (nop->gpiod_vbus) {
		err = devm_request_threaded_irq(&pdev->dev,
						gpiod_to_irq(nop->gpiod_vbus),
						NULL, nop_gpio_vbus_thread,
						VBUS_IRQ_FLAGS, "vbus_detect",
						nop);
		if (err) {
			dev_err(&pdev->dev, "can't request irq %i, err: %d\n",
				gpiod_to_irq(nop->gpiod_vbus), err);
			return err;
		}
		nop->phy.otg->state = gpiod_get_value(nop->gpiod_vbus) ?
			OTG_STATE_B_PERIPHERAL : OTG_STATE_B_IDLE;
	}

	nop->phy.init		= usb_gen_phy_init;
	nop->phy.shutdown	= usb_gen_phy_shutdown;

	err = usb_add_phy_dev(&nop->phy);
	if (err) {
		dev_err(&pdev->dev, "can't register transceiver, err: %d\n",
			err);
		return err;
	}

	platform_set_drvdata(pdev, nop);

	return 0;
}
예제 #10
0
static int twl4030_usb_probe(struct platform_device *pdev)
{
	struct twl4030_usb_data *pdata = dev_get_platdata(&pdev->dev);
	struct twl4030_usb	*twl;
	struct phy		*phy;
	int			status, err;
	struct usb_otg		*otg;
	struct device_node	*np = pdev->dev.of_node;
	struct phy_provider	*phy_provider;
	struct phy_init_data	*init_data = NULL;

	twl = devm_kzalloc(&pdev->dev, sizeof(*twl), GFP_KERNEL);
	if (!twl)
		return -ENOMEM;

	if (np)
		of_property_read_u32(np, "usb_mode",
				(enum twl4030_usb_mode *)&twl->usb_mode);
	else if (pdata) {
		twl->usb_mode = pdata->usb_mode;
		init_data = pdata->init_data;
	} else {
		dev_err(&pdev->dev, "twl4030 initialized without pdata\n");
		return -EINVAL;
	}

	otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL);
	if (!otg)
		return -ENOMEM;

	twl->dev		= &pdev->dev;
	twl->irq		= platform_get_irq(pdev, 0);
	twl->vbus_supplied	= false;
	twl->asleep		= 1;
	twl->linkstat		= OMAP_MUSB_UNKNOWN;

	twl->phy.dev		= twl->dev;
	twl->phy.label		= "twl4030";
	twl->phy.otg		= otg;
	twl->phy.type		= USB_PHY_TYPE_USB2;

	otg->phy		= &twl->phy;
	otg->set_host		= twl4030_set_host;
	otg->set_peripheral	= twl4030_set_peripheral;

	phy = devm_phy_create(twl->dev, NULL, &ops, init_data);
	if (IS_ERR(phy)) {
		dev_dbg(&pdev->dev, "Failed to create PHY\n");
		return PTR_ERR(phy);
	}

	phy_set_drvdata(phy, twl);

	phy_provider = devm_of_phy_provider_register(twl->dev,
		of_phy_simple_xlate);
	if (IS_ERR(phy_provider))
		return PTR_ERR(phy_provider);

	/* init spinlock for workqueue */
	spin_lock_init(&twl->lock);

	INIT_DELAYED_WORK(&twl->id_workaround_work, twl4030_id_workaround_work);

	err = twl4030_usb_ldo_init(twl);
	if (err) {
		dev_err(&pdev->dev, "ldo init failed\n");
		return err;
	}
	usb_add_phy_dev(&twl->phy);

	platform_set_drvdata(pdev, twl);
	if (device_create_file(&pdev->dev, &dev_attr_vbus))
		dev_warn(&pdev->dev, "could not create sysfs file\n");

	ATOMIC_INIT_NOTIFIER_HEAD(&twl->phy.notifier);

	/* Our job is to use irqs and status from the power module
	 * to keep the transceiver disabled when nothing's connected.
	 *
	 * FIXME we actually shouldn't start enabling it until the
	 * USB controller drivers have said they're ready, by calling
	 * set_host() and/or set_peripheral() ... OTG_capable boards
	 * need both handles, otherwise just one suffices.
	 */
	twl->irq_enabled = true;
	status = devm_request_threaded_irq(twl->dev, twl->irq, NULL,
			twl4030_usb_irq, IRQF_TRIGGER_FALLING |
			IRQF_TRIGGER_RISING | IRQF_ONESHOT, "twl4030_usb", twl);
	if (status < 0) {
		dev_dbg(&pdev->dev, "can't get IRQ %d, err %d\n",
			twl->irq, status);
		return status;
	}

	dev_info(&pdev->dev, "Initialized TWL4030 USB module\n");
	return 0;
}
예제 #11
0
static int omap_usb2_probe(struct platform_device *pdev)
{
	struct omap_usb	*phy;
	struct phy *generic_phy;
	struct resource *res;
	struct phy_provider *phy_provider;
	struct usb_otg *otg;
	struct device_node *node = pdev->dev.of_node;
	struct device_node *control_node;
	struct platform_device *control_pdev;
	const struct of_device_id *of_id;
	struct usb_phy_data *phy_data;

	of_id = of_match_device(of_match_ptr(omap_usb2_id_table), &pdev->dev);

	if (!of_id)
		return -EINVAL;

	phy_data = (struct usb_phy_data *)of_id->data;

	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		= phy_data->label;
	phy->phy.otg		= otg;
	phy->phy.type		= USB_PHY_TYPE_USB2;

	if (phy_data->flags & OMAP_USB2_CALIBRATE_FALSE_DISCONNECT) {
		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
		phy->phy_base = devm_ioremap_resource(&pdev->dev, res);
		if (IS_ERR(phy->phy_base))
			return PTR_ERR(phy->phy_base);
		phy->flags |= OMAP_USB2_CALIBRATE_FALSE_DISCONNECT;
	}

	control_node = of_parse_phandle(node, "ctrl-module", 0);
	if (!control_node) {
		dev_err(&pdev->dev, "Failed to get control device phandle\n");
		return -EINVAL;
	}

	control_pdev = of_find_device_by_node(control_node);
	if (!control_pdev) {
		dev_err(&pdev->dev, "Failed to get control device\n");
		return -EINVAL;
	}

	phy->control_dev = &control_pdev->dev;
	omap_control_phy_power(phy->control_dev, 0);

	otg->set_host		= omap_usb_set_host;
	otg->set_peripheral	= omap_usb_set_peripheral;
	if (phy_data->flags & OMAP_USB2_HAS_SET_VBUS)
		otg->set_vbus		= omap_usb_set_vbus;
	if (phy_data->flags & OMAP_USB2_HAS_START_SRP)
		otg->start_srp		= omap_usb_start_srp;
	otg->phy		= &phy->phy;

	platform_set_drvdata(pdev, phy);

	generic_phy = devm_phy_create(phy->dev, &ops, NULL);
	if (IS_ERR(generic_phy))
		return PTR_ERR(generic_phy);

	phy_set_drvdata(generic_phy, phy);

	pm_runtime_enable(phy->dev);
	phy_provider = devm_of_phy_provider_register(phy->dev,
			of_phy_simple_xlate);
	if (IS_ERR(phy_provider)) {
		pm_runtime_disable(phy->dev);
		return PTR_ERR(phy_provider);
	}

	phy->wkupclk = devm_clk_get(phy->dev, "wkupclk");
	if (IS_ERR(phy->wkupclk)) {
		dev_warn(&pdev->dev, "unable to get wkupclk, trying old name\n");
		phy->wkupclk = devm_clk_get(phy->dev, "usb_phy_cm_clk32k");
		if (IS_ERR(phy->wkupclk)) {
			dev_err(&pdev->dev, "unable to get usb_phy_cm_clk32k\n");
			return PTR_ERR(phy->wkupclk);
		} else {
			dev_warn(&pdev->dev,
				 "found usb_phy_cm_clk32k, please fix DTS\n");
		}
	}
	clk_prepare(phy->wkupclk);

	phy->optclk = devm_clk_get(phy->dev, "refclk");
	if (IS_ERR(phy->optclk)) {
		dev_dbg(&pdev->dev, "unable to get refclk, trying old name\n");
		phy->optclk = devm_clk_get(phy->dev, "usb_otg_ss_refclk960m");
		if (IS_ERR(phy->optclk)) {
			dev_dbg(&pdev->dev,
				"unable to get usb_otg_ss_refclk960m\n");
		} else {
			dev_warn(&pdev->dev,
				 "found usb_otg_ss_refclk960m, please fix DTS\n");
		}
	} else {
		clk_prepare(phy->optclk);
	}

	usb_add_phy_dev(&phy->phy);

	return 0;
}
static int mv_otg_probe(struct platform_device *pdev)
{
	struct mv_usb_platform_data *pdata = pdev->dev.platform_data;
	struct mv_otg *mvotg;
	struct usb_otg *otg;
	struct resource *r;
	int retval = 0, i;
	struct device_node *np = pdev->dev.of_node;
	const __be32 *prop;
	unsigned int proplen;

	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);
	clk_prepare(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.type = USB_PHY_TYPE_USB2;
	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;

	mv_otg_phy_bind_device(mvotg);

	for (i = 0; i < OTG_TIMER_NUM; i++)
		init_timer(&mvotg->otg_ctrl.timer[i]);

	r = platform_get_resource(mvotg->pdev,
					 IORESOURCE_MEM, 0);
	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;
	}

	mvotg->outer_phy = devm_usb_get_phy_dev(&pdev->dev, MV_USB2_PHY_INDEX);
	if (IS_ERR_OR_NULL(mvotg->outer_phy)) {
		retval = PTR_ERR(mvotg->outer_phy);
		if (retval != -EPROBE_DEFER)
			dev_err(&pdev->dev, "can not find outer phy\n");
		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->extern_attr
		& (MV_USB_HAS_VBUS_DETECTION | MV_USB_HAS_IDPIN_DETECTION)) {
		mvotg->notifier.notifier_call = mv_otg_notifier_callback;
		pxa_usb_register_notifier(mvotg->pdata->id, &mvotg->notifier);
		if (pdata->extern_attr & MV_USB_HAS_VBUS_DETECTION) {
			mvotg->clock_gating = 1;
			pxa_usb_extern_call(mvotg->pdata->id, vbus, init);
		}
		if (pdata->extern_attr & MV_USB_HAS_IDPIN_DETECTION)
			pxa_usb_extern_call(mvotg->pdata->id, idpin, init);
	}

	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_dev(&mvotg->phy);
	if (retval < 0) {
		dev_err(&pdev->dev, "can't register transceiver, %d\n",
			retval);
		goto err_disable_clk;
	}

	prop = of_get_property(np, "lpm-qos", &proplen);
	if (!prop) {
		pr_err("lpm-qos config in DT for mv_otg is not defined\n");
		goto err_disable_clk;
	} else
		mvotg->lpm_qos = be32_to_cpup(prop);

	mvotg->qos_idle.name = mvotg->pdev->name;
	pm_qos_add_request(&mvotg->qos_idle, PM_QOS_CPUIDLE_BLOCK,
			PM_QOS_CPUIDLE_BLOCK_DEFAULT_VALUE);

	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_otg_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");

	device_init_wakeup(&pdev->dev, 1);

	return 0;

err_remove_otg_phy:
	usb_remove_phy(&mvotg->phy);
	pm_qos_remove_request(&mvotg->qos_idle);
err_disable_clk:
	mv_otg_disable_internal(mvotg);
	if (pdata->extern_attr
		& (MV_USB_HAS_VBUS_DETECTION | MV_USB_HAS_IDPIN_DETECTION))
		pxa_usb_unregister_notifier(mvotg->pdata->id, &mvotg->notifier);
err_destroy_workqueue:
	flush_workqueue(mvotg->qwork);
	destroy_workqueue(mvotg->qwork);

	return retval;
}
예제 #13
0
static int omap_usb2_probe(struct platform_device *pdev)
{
	struct omap_usb	*phy;
	struct phy *generic_phy;
	struct resource *res;
	struct phy_provider *phy_provider;
	struct usb_otg *otg;
	struct device_node *node = pdev->dev.of_node;
	struct device_node *control_node;
	struct platform_device *control_pdev;
	const struct of_device_id *of_id;
	struct usb_phy_data *phy_data;

	of_id = of_match_device(omap_usb2_id_table, &pdev->dev);

	if (!of_id)
		return -EINVAL;

	phy_data = (struct usb_phy_data *)of_id->data;

	phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
	if (!phy)
		return -ENOMEM;

	otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL);
	if (!otg)
		return -ENOMEM;

	phy->dev		= &pdev->dev;

	phy->phy.dev		= phy->dev;
	phy->phy.label		= phy_data->label;
	phy->phy.otg		= otg;
	phy->phy.type		= USB_PHY_TYPE_USB2;
	phy->mask		= phy_data->mask;
	phy->power_on		= phy_data->power_on;
	phy->power_off		= phy_data->power_off;

	if (phy_data->flags & OMAP_USB2_CALIBRATE_FALSE_DISCONNECT) {
		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
		phy->phy_base = devm_ioremap_resource(&pdev->dev, res);
		if (IS_ERR(phy->phy_base))
			return PTR_ERR(phy->phy_base);
		phy->flags |= OMAP_USB2_CALIBRATE_FALSE_DISCONNECT;
	}

	phy->syscon_phy_power = syscon_regmap_lookup_by_phandle(node,
							"syscon-phy-power");
	if (IS_ERR(phy->syscon_phy_power)) {
		dev_dbg(&pdev->dev,
			"can't get syscon-phy-power, using control device\n");
		phy->syscon_phy_power = NULL;

		control_node = of_parse_phandle(node, "ctrl-module", 0);
		if (!control_node) {
			dev_err(&pdev->dev,
				"Failed to get control device phandle\n");
			return -EINVAL;
		}

		control_pdev = of_find_device_by_node(control_node);
		if (!control_pdev) {
			dev_err(&pdev->dev, "Failed to get control device\n");
			return -EINVAL;
		}
		phy->control_dev = &control_pdev->dev;
	} else {
		if (of_property_read_u32_index(node,
					       "syscon-phy-power", 1,
					       &phy->power_reg)) {
			dev_err(&pdev->dev,
				"couldn't get power reg. offset\n");
			return -EINVAL;
		}
	}


	phy->wkupclk = devm_clk_get(phy->dev, "wkupclk");
	if (IS_ERR(phy->wkupclk)) {
		if (PTR_ERR(phy->wkupclk) == -EPROBE_DEFER)
			return -EPROBE_DEFER;

		dev_warn(&pdev->dev, "unable to get wkupclk %ld, trying old name\n",
			 PTR_ERR(phy->wkupclk));
		phy->wkupclk = devm_clk_get(phy->dev, "usb_phy_cm_clk32k");

		if (IS_ERR(phy->wkupclk)) {
			if (PTR_ERR(phy->wkupclk) != -EPROBE_DEFER)
				dev_err(&pdev->dev, "unable to get usb_phy_cm_clk32k\n");
			return PTR_ERR(phy->wkupclk);
		} else {
			dev_warn(&pdev->dev,
				 "found usb_phy_cm_clk32k, please fix DTS\n");
		}
	}

	phy->optclk = devm_clk_get(phy->dev, "refclk");
	if (IS_ERR(phy->optclk)) {
		if (PTR_ERR(phy->optclk) == -EPROBE_DEFER)
			return -EPROBE_DEFER;

		dev_dbg(&pdev->dev, "unable to get refclk, trying old name\n");
		phy->optclk = devm_clk_get(phy->dev, "usb_otg_ss_refclk960m");

		if (IS_ERR(phy->optclk)) {
			if (PTR_ERR(phy->optclk) != -EPROBE_DEFER) {
				dev_dbg(&pdev->dev,
					"unable to get usb_otg_ss_refclk960m\n");
			}
		} else {
			dev_warn(&pdev->dev,
				 "found usb_otg_ss_refclk960m, please fix DTS\n");
		}
	}

	otg->set_host = omap_usb_set_host;
	otg->set_peripheral = omap_usb_set_peripheral;
	if (phy_data->flags & OMAP_USB2_HAS_SET_VBUS)
		otg->set_vbus = omap_usb_set_vbus;
	if (phy_data->flags & OMAP_USB2_HAS_START_SRP)
		otg->start_srp = omap_usb_start_srp;
	otg->usb_phy = &phy->phy;

	platform_set_drvdata(pdev, phy);
	pm_runtime_enable(phy->dev);

	generic_phy = devm_phy_create(phy->dev, NULL, &ops);
	if (IS_ERR(generic_phy)) {
		pm_runtime_disable(phy->dev);
		return PTR_ERR(generic_phy);
	}

	phy_set_drvdata(generic_phy, phy);
	omap_usb_power_off(generic_phy);

	phy_provider = devm_of_phy_provider_register(phy->dev,
						     of_phy_simple_xlate);
	if (IS_ERR(phy_provider)) {
		pm_runtime_disable(phy->dev);
		return PTR_ERR(phy_provider);
	}


	usb_add_phy_dev(&phy->phy);

	return 0;
}
예제 #14
0
파일: omap-usb3.c 프로젝트: AiWinters/linux
static int omap_usb3_probe(struct platform_device *pdev)
{
	struct omap_usb			*phy;
	struct resource			*res;

	phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
	if (!phy) {
		dev_err(&pdev->dev, "unable to alloc mem for OMAP USB3 PHY\n");
		return -ENOMEM;
	}

	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pll_ctrl");
	phy->pll_ctrl_base = devm_request_and_ioremap(&pdev->dev, res);
	if (!phy->pll_ctrl_base) {
		dev_err(&pdev->dev, "ioremap of pll_ctrl failed\n");
		return -ENOMEM;
	}

	phy->dev		= &pdev->dev;

	phy->phy.dev		= phy->dev;
	phy->phy.label		= "omap-usb3";
	phy->phy.init		= omap_usb3_init;
	phy->phy.set_suspend	= omap_usb3_suspend;
	phy->phy.type		= USB_PHY_TYPE_USB3;

	phy->is_suspended	= 1;
	phy->wkupclk = devm_clk_get(phy->dev, "usb_phy_cm_clk32k");
	if (IS_ERR(phy->wkupclk)) {
		dev_err(&pdev->dev, "unable to get usb_phy_cm_clk32k\n");
		return PTR_ERR(phy->wkupclk);
	}
	clk_prepare(phy->wkupclk);

	phy->optclk = devm_clk_get(phy->dev, "usb_otg_ss_refclk960m");
	if (IS_ERR(phy->optclk)) {
		dev_err(&pdev->dev, "unable to get usb_otg_ss_refclk960m\n");
		return PTR_ERR(phy->optclk);
	}
	clk_prepare(phy->optclk);

	phy->sys_clk = devm_clk_get(phy->dev, "sys_clkin");
	if (IS_ERR(phy->sys_clk)) {
		pr_err("%s: unable to get sys_clkin\n", __func__);
		return -EINVAL;
	}

	phy->control_dev = omap_get_control_dev();
	if (IS_ERR(phy->control_dev)) {
		dev_dbg(&pdev->dev, "Failed to get control device\n");
		return -ENODEV;
	}

	omap_control_usb3_phy_power(phy->control_dev, 0);
	usb_add_phy_dev(&phy->phy);

	platform_set_drvdata(pdev, phy);

	pm_runtime_enable(phy->dev);
	pm_runtime_get(&pdev->dev);

	return 0;
}
예제 #15
0
static int omap_usb2_probe(struct platform_device *pdev)
{
	struct omap_usb	*phy;
	struct phy *generic_phy;
	struct phy_provider *phy_provider;
	struct usb_otg *otg;
	struct device_node *node = pdev->dev.of_node;
	struct device_node *control_node;
	struct platform_device *control_pdev;

	if (!node)
		return -EINVAL;

	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->phy.type		= USB_PHY_TYPE_USB2;

	control_node = of_parse_phandle(node, "ctrl-module", 0);
	if (!control_node) {
		dev_err(&pdev->dev, "Failed to get control device phandle\n");
		return -EINVAL;
	}

	control_pdev = of_find_device_by_node(control_node);
	if (!control_pdev) {
		dev_err(&pdev->dev, "Failed to get control device\n");
		return -EINVAL;
	}

	phy->control_dev = &control_pdev->dev;

	phy->is_suspended	= 1;
	omap_control_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;

	platform_set_drvdata(pdev, phy);
	pm_runtime_enable(phy->dev);

	generic_phy = devm_phy_create(phy->dev, &ops, NULL);
	if (IS_ERR(generic_phy))
		return PTR_ERR(generic_phy);

	phy_set_drvdata(generic_phy, phy);

	phy_provider = devm_of_phy_provider_register(phy->dev,
			of_phy_simple_xlate);
	if (IS_ERR(phy_provider))
		return PTR_ERR(phy_provider);

	phy->wkupclk = devm_clk_get(phy->dev, "usb_phy_cm_clk32k");
	if (IS_ERR(phy->wkupclk)) {
		dev_err(&pdev->dev, "unable to get usb_phy_cm_clk32k\n");
		return PTR_ERR(phy->wkupclk);
	}
	clk_prepare(phy->wkupclk);

	phy->optclk = devm_clk_get(phy->dev, "usb_otg_ss_refclk960m");
	if (IS_ERR(phy->optclk))
		dev_vdbg(&pdev->dev, "unable to get refclk960m\n");
	else
		clk_prepare(phy->optclk);

	usb_add_phy_dev(&phy->phy);

	return 0;
}
예제 #16
0
static int msm_ssphy_qmp_probe(struct platform_device *pdev)
{
	struct msm_ssphy_qmp *phy;
	struct device *dev = &pdev->dev;
	struct resource *res;
	int ret = 0;

	phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL);
	if (!phy)
		return -ENOMEM;

	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
						"qmp_phy_base");
	phy->base = devm_ioremap_resource(dev, res);
	if (IS_ERR(phy->base))
		return PTR_ERR(phy->base);

	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
						"qmp_ahb2phy_base");
	phy->ahb2phy = devm_ioremap_resource(dev, res);
	if (IS_ERR(phy->ahb2phy)) {
		dev_err(dev, "couldn't find qmp_ahb2phy_base address.\n");
		return PTR_ERR(phy->ahb2phy);
	}

	ret = of_property_read_u32_array(dev->of_node, "qcom,vdd-voltage-level",
					 (u32 *) phy->vdd_levels,
					 ARRAY_SIZE(phy->vdd_levels));
	if (ret) {
		dev_err(dev, "error reading qcom,vdd-voltage-level property\n");
		return ret;
	}

	phy->vdd = devm_regulator_get(dev, "vdd");
	if (IS_ERR(phy->vdd)) {
		dev_err(dev, "unable to get vdd supply\n");
		return PTR_ERR(phy->vdd);
	}

	phy->vdda18 = devm_regulator_get(dev, "vdda18");
	if (IS_ERR(phy->vdda18)) {
		dev_err(dev, "unable to get vdda18 supply\n");
		return PTR_ERR(phy->vdda18);
	}

	ret = msm_ssusb_qmp_config_vdd(phy, 1);
	if (ret) {
		dev_err(dev, "ssusb vdd_dig configuration failed\n");
		return ret;
	}

	ret = regulator_enable(phy->vdd);
	if (ret) {
		dev_err(dev, "unable to enable the ssusb vdd_dig\n");
		goto unconfig_ss_vdd;
	}

	ret = msm_ssusb_qmp_ldo_enable(phy, 1);
	if (ret) {
		dev_err(dev, "ssusb vreg enable failed\n");
		goto disable_ss_vdd;
	}

	phy->ldo_clk = devm_clk_get(dev, "ldo_clk");
	if (!IS_ERR(phy->ldo_clk))
		clk_prepare_enable(phy->ldo_clk);

	platform_set_drvdata(pdev, phy);

	if (of_property_read_bool(dev->of_node, "qcom,vbus-valid-override"))
		phy->phy.flags |= PHY_VBUS_VALID_OVERRIDE;

	phy->override_pll_cal = of_property_read_bool(dev->of_node,
					"qcom,override-pll-calibration");
	if (phy->override_pll_cal)
		dev_dbg(dev, "Override PHY PLL calibration is enabled.\n");

	phy->switch_pipe_clk_src = !of_property_read_bool(dev->of_node,
					"qcom,no-pipe-clk-switch");

	phy->phy.dev			= dev;
	phy->phy.init			= msm_ssphy_qmp_init;
	phy->phy.set_suspend		= msm_ssphy_qmp_set_suspend;
	phy->phy.set_params		= msm_ssphy_qmp_set_params;
	phy->phy.notify_connect		= msm_ssphy_qmp_notify_connect;
	phy->phy.notify_disconnect	= msm_ssphy_qmp_notify_disconnect;
	phy->phy.reset			= msm_ssphy_qmp_reset;
	phy->phy.type			= USB_PHY_TYPE_USB3;

	ret = usb_add_phy_dev(&phy->phy);
	if (ret)
		goto disable_ss_ldo;
	return 0;

disable_ss_ldo:
	if (!IS_ERR(phy->ldo_clk))
		clk_disable_unprepare(phy->ldo_clk);
	msm_ssusb_qmp_ldo_enable(phy, 0);
disable_ss_vdd:
	regulator_disable(phy->vdd);
unconfig_ss_vdd:
	msm_ssusb_qmp_config_vdd(phy, 0);

	return ret;
}
예제 #17
0
static int msm_hsphy_probe(struct platform_device *pdev)
{
	struct msm_hsphy *phy;
	struct device *dev = &pdev->dev;
	struct resource *res;
	int ret = 0;

	phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL);
	if (!phy) {
		ret = -ENOMEM;
		goto err_ret;
	}

	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
	if (!res) {
		dev_err(dev, "missing memory base resource\n");
		ret = -ENODEV;
		goto err_ret;
	}

	phy->base = devm_ioremap_nocache(dev, res->start, resource_size(res));
	if (!phy->base) {
		dev_err(dev, "ioremap failed\n");
		ret = -ENODEV;
		goto err_ret;
	}

	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tcsr");
	if (res) {
		phy->tcsr = devm_ioremap_nocache(dev, res->start,
						 resource_size(res));
		if (!phy->tcsr) {
			dev_err(dev, "tcsr ioremap failed\n");
			return -ENODEV;
		}

		/* switch MUX to let SNPS controller use the primary HSPHY */
		writel_relaxed(readl_relaxed(phy->tcsr) | TCSR_USB30_CONTROL,
				phy->tcsr);
	}

	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phy_csr");
	if (res) {
		phy->csr = devm_ioremap_nocache(dev, res->start,
						 resource_size(res));
		if (!phy->csr) {
			dev_err(dev, "phy_csr ioremap failed\n");
			return -ENODEV;
		}
	}

	if (of_get_property(dev->of_node, "qcom,primary-phy", NULL)) {
		dev_dbg(dev, "secondary HSPHY\n");
		phy->phy.flags |= ENABLE_SECONDARY_PHY;
	}

	ret = of_property_read_u32_array(dev->of_node, "qcom,vdd-voltage-level",
					 (u32 *) phy->vdd_levels,
					 ARRAY_SIZE(phy->vdd_levels));
	if (ret) {
		dev_err(dev, "error reading qcom,vdd-voltage-level property\n");
		goto err_ret;
	}

	phy->ext_vbus_id = of_property_read_bool(dev->of_node,
						"qcom,ext-vbus-id");
	phy->phy.dev = dev;

	phy->vdd = devm_regulator_get(dev, "vdd");
	if (IS_ERR(phy->vdd)) {
		dev_err(dev, "unable to get vdd supply\n");
		ret = PTR_ERR(phy->vdd);
		goto err_ret;
	}

	if (of_get_property(dev->of_node, "vddcx-supply", NULL)) {
		phy->vddcx = devm_regulator_get(dev, "vddcx");
		if (IS_ERR(phy->vddcx)) {
			dev_err(dev, "unable to get vddcx supply\n");
			ret = PTR_ERR(phy->vddcx);
			goto err_ret;
		}
	}

	phy->vdda33 = devm_regulator_get(dev, "vdda33");
	if (IS_ERR(phy->vdda33)) {
		dev_err(dev, "unable to get vdda33 supply\n");
		ret = PTR_ERR(phy->vdda33);
		goto err_ret;
	}

	phy->vdda18 = devm_regulator_get(dev, "vdda18");
	if (IS_ERR(phy->vdda18)) {
		dev_err(dev, "unable to get vdda18 supply\n");
		ret = PTR_ERR(phy->vdda18);
		goto err_ret;
	}

	ret = msm_hsusb_config_vdd(phy, 1);
	if (ret) {
		dev_err(dev, "hsusb vdd_dig configuration failed\n");
		goto err_ret;
	}

	ret = regulator_enable(phy->vdd);
	if (ret) {
		dev_err(dev, "unable to enable the hsusb vdd_dig\n");
		goto unconfig_hs_vdd;
	}
	if (phy->vddcx) {
		ret = regulator_enable(phy->vddcx);
		if (ret) {
			dev_err(dev, "unable to enable vddcx\n");
			goto unconfig_hs_vdd;
		}
	}

	ret = msm_hsusb_ldo_enable(phy, 1);
	if (ret) {
		dev_err(dev, "hsusb vreg enable failed\n");
		goto disable_hs_vdd;
	}

	phy->sleep_clk = devm_clk_get(&pdev->dev, "phy_sleep_clk");
	if (IS_ERR(phy->sleep_clk)) {
		dev_err(&pdev->dev, "failed to get phy_sleep_clk\n");
		ret = PTR_ERR(phy->sleep_clk);
		goto disable_hs_ldo;
	}
	clk_prepare_enable(phy->sleep_clk);
	phy->sleep_clk_reset = of_property_read_bool(dev->of_node,
						"qcom,sleep-clk-reset");

	if (of_property_read_u32(dev->of_node, "qcom,hsphy-init",
					&phy->hsphy_init_seq))
		dev_dbg(dev, "unable to read hsphy init seq\n");
	else if (!phy->hsphy_init_seq)
		dev_warn(dev, "hsphy init seq cannot be 0. Using POR value\n");

	if (of_property_read_u32(dev->of_node, "qcom,hsphy-host-init",
				 &phy->hsphy_host_init_seq))
		dev_dbg(dev, "unable to read hsphy host init seq\n");
	else if (!phy->hsphy_host_init_seq)
		dev_warn(dev,
			 "hsphy host init seq cannot be 0. Using POR value\n");

	if (of_property_read_u32(dev->of_node, "qcom,num-ports",
					&phy->num_ports))
		phy->num_ports = 1;
	else if (phy->num_ports > 3) {
		dev_err(dev, " number of ports more that 3 is not supported\n");
		goto disable_clk;
	}

	phy->set_pllbtune = of_property_read_bool(dev->of_node,
						 "qcom,set-pllbtune");

	/*
	 * If this workaround flag is enabled, the HW requires the 1.8 and 3.x
	 * regulators to be kept ON when entering suspend. The easiest way to
	 * do that is to call regulator_enable() an additional time here,
	 * since it will keep the regulators' reference counts nonzero.
	 */
	phy->vdda_force_on = of_property_read_bool(dev->of_node,
						"qcom,vdda-force-on");
	if (phy->vdda_force_on) {
		ret = msm_hsusb_ldo_enable(phy, 1);
		if (ret)
			goto disable_clk;
	}

	platform_set_drvdata(pdev, phy);

	if (of_property_read_bool(dev->of_node, "qcom,vbus-valid-override"))
		phy->phy.flags |= PHY_VBUS_VALID_OVERRIDE;

	phy->phy.init			= msm_hsphy_init;
	phy->phy.set_suspend		= msm_hsphy_set_suspend;
	phy->phy.notify_connect		= msm_hsphy_notify_connect;
	phy->phy.notify_disconnect	= msm_hsphy_notify_disconnect;
	phy->phy.reset			= msm_hsphy_reset;
	/*FIXME: this conflicts with dwc3_otg */
	/*phy->phy.type			= USB_PHY_TYPE_USB2; */
	phy->phy.set_params = msm_hsphy_set_params;

	ret = usb_add_phy_dev(&phy->phy);
	if (ret)
		goto disable_clk;

	atomic_inc(&hsphy_active_count);
	return 0;

disable_clk:
	clk_disable_unprepare(phy->sleep_clk);
disable_hs_ldo:
	msm_hsusb_ldo_enable(phy, 0);
disable_hs_vdd:
	if (phy->vddcx)
		regulator_disable(phy->vddcx);
	regulator_disable(phy->vdd);
unconfig_hs_vdd:
	msm_hsusb_config_vdd(phy, 0);
err_ret:
	return ret;
}
예제 #18
0
static int msm_ssphy_qmp_probe(struct platform_device *pdev)
{
	struct msm_ssphy_qmp *phy;
	struct device *dev = &pdev->dev;
	struct resource *res;
	int ret = 0;

	phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL);
	if (!phy)
		return -ENOMEM;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!res) {
		dev_err(dev, "missing memory base resource\n");
		return -ENODEV;
	}

	phy->base = devm_ioremap_nocache(dev, res->start, resource_size(res));
	if (!phy->base) {
		dev_err(dev, "ioremap failed\n");
		return -ENODEV;
	}

	ret = of_property_read_u32_array(dev->of_node, "qcom,vdd-voltage-level",
					 (u32 *) phy->vdd_levels,
					 ARRAY_SIZE(phy->vdd_levels));
	if (ret) {
		dev_err(dev, "error reading qcom,vdd-voltage-level property\n");
		return ret;
	}

	phy->vdd = devm_regulator_get(dev, "vdd");
	if (IS_ERR(phy->vdd)) {
		dev_err(dev, "unable to get vdd supply\n");
		return PTR_ERR(phy->vdd);
	}

	phy->vdda18 = devm_regulator_get(dev, "vdda18");
	if (IS_ERR(phy->vdda18)) {
		dev_err(dev, "unable to get vdda18 supply\n");
		return PTR_ERR(phy->vdda18);
	}

	ret = msm_ssusb_qmp_config_vdd(phy, 1);
	if (ret) {
		dev_err(dev, "ssusb vdd_dig configuration failed\n");
		return ret;
	}

	ret = regulator_enable(phy->vdd);
	if (ret) {
		dev_err(dev, "unable to enable the ssusb vdd_dig\n");
		goto unconfig_ss_vdd;
	}

	ret = msm_ssusb_qmp_ldo_enable(phy, 1);
	if (ret) {
		dev_err(dev, "ssusb vreg enable failed\n");
		goto disable_ss_vdd;
	}

	platform_set_drvdata(pdev, phy);

	if (of_property_read_bool(dev->of_node, "qcom,vbus-valid-override"))
		phy->phy.flags |= PHY_VBUS_VALID_OVERRIDE;

	phy->phy.dev			= dev;
	phy->phy.init			= msm_ssphy_qmp_init;
	phy->phy.set_suspend		= msm_ssphy_qmp_set_suspend;
	phy->phy.set_params		= msm_ssphy_qmp_set_params;
	phy->phy.notify_connect		= msm_ssphy_qmp_notify_connect;
	phy->phy.notify_disconnect	= msm_ssphy_qmp_notify_disconnect;
	phy->phy.reset			= msm_ssphy_qmp_reset;
	phy->phy.type			= USB_PHY_TYPE_USB3;

	ret = msm_ssphy_qmp_init_clocks(phy);
	if (ret) {
		dev_err(dev, "Fail to init qmp phy clocks\n");
		goto disable_ss_ldo;
	}

	ret = usb_add_phy_dev(&phy->phy);
	if (ret)
		goto disable_ss_ldo;
	return 0;

disable_ss_ldo:
	msm_ssusb_qmp_ldo_enable(phy, 0);
disable_ss_vdd:
	regulator_disable(phy->vdd);
unconfig_ss_vdd:
	msm_ssusb_qmp_config_vdd(phy, 0);

	return ret;
}
예제 #19
0
static int nop_usb_xceiv_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct nop_usb_xceiv_platform_data *pdata = pdev->dev.platform_data;
	struct nop_usb_xceiv	*nop;
	enum usb_phy_type	type = USB_PHY_TYPE_USB2;
	int err;
	u32 clk_rate = 0;
	bool needs_vcc = false;
	bool needs_reset = false;

	nop = devm_kzalloc(&pdev->dev, sizeof(*nop), GFP_KERNEL);
	if (!nop)
		return -ENOMEM;

	nop->phy.otg = devm_kzalloc(&pdev->dev, sizeof(*nop->phy.otg),
							GFP_KERNEL);
	if (!nop->phy.otg)
		return -ENOMEM;

	if (dev->of_node) {
		struct device_node *node = dev->of_node;

		if (of_property_read_u32(node, "clock-frequency", &clk_rate))
			clk_rate = 0;

		needs_vcc = of_property_read_bool(node, "vcc-supply");
		needs_reset = of_property_read_bool(node, "reset-supply");

	} else if (pdata) {
		type = pdata->type;
		clk_rate = pdata->clk_rate;
		needs_vcc = pdata->needs_vcc;
		needs_reset = pdata->needs_reset;
	}

	nop->clk = devm_clk_get(&pdev->dev, "main_clk");
	if (IS_ERR(nop->clk)) {
		dev_dbg(&pdev->dev, "Can't get phy clock: %ld\n",
					PTR_ERR(nop->clk));
	}

	if (!IS_ERR(nop->clk) && clk_rate) {
		err = clk_set_rate(nop->clk, clk_rate);
		if (err) {
			dev_err(&pdev->dev, "Error setting clock rate\n");
			return err;
		}
	}

	if (!IS_ERR(nop->clk)) {
		err = clk_prepare(nop->clk);
		if (err) {
			dev_err(&pdev->dev, "Error preparing clock\n");
			return err;
		}
	}

	nop->vcc = devm_regulator_get(&pdev->dev, "vcc");
	if (IS_ERR(nop->vcc)) {
		dev_dbg(&pdev->dev, "Error getting vcc regulator: %ld\n",
					PTR_ERR(nop->vcc));
		if (needs_vcc)
			return -EPROBE_DEFER;
	}

	nop->reset = devm_regulator_get(&pdev->dev, "reset");
	if (IS_ERR(nop->reset)) {
		dev_dbg(&pdev->dev, "Error getting reset regulator: %ld\n",
					PTR_ERR(nop->reset));
		if (needs_reset)
			return -EPROBE_DEFER;
	}

	nop->dev		= &pdev->dev;
	nop->phy.dev		= nop->dev;
	nop->phy.label		= "nop-xceiv";
	nop->phy.set_suspend	= nop_set_suspend;
	nop->phy.init		= nop_init;
	nop->phy.shutdown	= nop_shutdown;
	nop->phy.state		= OTG_STATE_UNDEFINED;
	nop->phy.type		= type;

	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_dev(&nop->phy);
	if (err) {
		dev_err(&pdev->dev, "can't register transceiver, err: %d\n",
			err);
		goto err_add;
	}

	platform_set_drvdata(pdev, nop);

	ATOMIC_INIT_NOTIFIER_HEAD(&nop->phy.notifier);

	return 0;

err_add:
	if (!IS_ERR(nop->clk))
		clk_unprepare(nop->clk);
	return err;
}
static int samsung_usb2phy_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);
	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 ||
		drv_data->cpu_type == TYPE_EXYNOS5)
		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-usb2phy";
	sphy->phy.type		= USB_PHY_TYPE_USB2;
	sphy->phy.init		= samsung_usb2phy_init;
	sphy->phy.shutdown	= samsung_usb2phy_shutdown;
	sphy->phy.is_active	= samsung_usb2phy_is_active;
	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;

	if (of_property_read_u32(sphy->dev->of_node,
		"samsung,hsicphy_en_mask", (u32 *)&drv_data->hsicphy_en_mask))
		dev_dbg(dev, "Failed to get hsicphy_en_mask\n");
	else if (of_property_read_u32(sphy->dev->of_node,
		"samsung,hsicphy_reg_offset",
		(u32 *)&drv_data->hsicphy_reg_offset))
		dev_dbg(dev, "Failed to get hsicphy_en_mask\n");
	else
		sphy->has_hsic_pmureg = true;

	spin_lock_init(&sphy->lock);

	ret = clk_prepare(sphy->clk);
	if (ret) {
		dev_err(dev, "clk_prepare failed\n");
		return ret;
	}

	platform_set_drvdata(pdev, sphy);

	ret = usb_add_phy_dev(&sphy->phy);
	if (ret) {
		dev_err(dev, "Failed to add PHY\n");
		goto err1;
	}

	return 0;

err1:
	clk_unprepare(sphy->clk);

	return ret;
}
예제 #21
0
static int msm_otg_probe(struct platform_device *pdev)
{
	struct regulator_bulk_data regs[3];
	int ret = 0;
	struct device_node *np = pdev->dev.of_node;
	struct msm_otg_platform_data *pdata;
	struct resource *res;
	struct msm_otg *motg;
	struct usb_phy *phy;
	void __iomem *phy_select;

	motg = devm_kzalloc(&pdev->dev, sizeof(struct msm_otg), GFP_KERNEL);
	if (!motg) {
		dev_err(&pdev->dev, "unable to allocate msm_otg\n");
		return -ENOMEM;
	}

	pdata = dev_get_platdata(&pdev->dev);
	if (!pdata) {
		if (!np)
			return -ENXIO;
		ret = msm_otg_read_dt(pdev, motg);
		if (ret)
			return ret;
	}

	motg->phy.otg = devm_kzalloc(&pdev->dev, sizeof(struct usb_otg),
				     GFP_KERNEL);
	if (!motg->phy.otg) {
		dev_err(&pdev->dev, "unable to allocate msm_otg\n");
		return -ENOMEM;
	}

	phy = &motg->phy;
	phy->dev = &pdev->dev;

	motg->phy_reset_clk = devm_clk_get(&pdev->dev,
					   np ? "phy" : "usb_phy_clk");
	if (IS_ERR(motg->phy_reset_clk)) {
		dev_err(&pdev->dev, "failed to get usb_phy_clk\n");
		motg->phy_reset_clk = NULL;
	}

	motg->clk = devm_clk_get(&pdev->dev, np ? "core" : "usb_hs_clk");
	if (IS_ERR(motg->clk)) {
		dev_err(&pdev->dev, "failed to get usb_hs_clk\n");
		return PTR_ERR(motg->clk);
	}

	/*
	 * If USB Core is running its protocol engine based on CORE CLK,
	 * CORE CLK  must be running at >55Mhz for correct HSUSB
	 * operation and USB core cannot tolerate frequency changes on
	 * CORE CLK.
	 */
	motg->pclk = devm_clk_get(&pdev->dev, np ? "iface" : "usb_hs_pclk");
	if (IS_ERR(motg->pclk)) {
		dev_err(&pdev->dev, "failed to get usb_hs_pclk\n");
		return PTR_ERR(motg->pclk);
	}

	/*
	 * USB core clock is not present on all MSM chips. This
	 * clock is introduced to remove the dependency on AXI
	 * bus frequency.
	 */
	motg->core_clk = devm_clk_get(&pdev->dev,
				      np ? "alt_core" : "usb_hs_core_clk");

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!res)
		return -EINVAL;
	motg->regs = devm_ioremap(&pdev->dev, res->start, resource_size(res));
	if (!motg->regs)
		return -ENOMEM;

	/*
	 * NOTE: The PHYs can be multiplexed between the chipidea controller
	 * and the dwc3 controller, using a single bit. It is important that
	 * the dwc3 driver does not set this bit in an incompatible way.
	 */
	if (motg->phy_number) {
		phy_select = devm_ioremap_nocache(&pdev->dev, USB2_PHY_SEL, 4);
		if (!phy_select)
			return -ENOMEM;
		/* Enable second PHY with the OTG port */
		writel(0x1, phy_select);
	}

	dev_info(&pdev->dev, "OTG regs = %p\n", motg->regs);

	motg->irq = platform_get_irq(pdev, 0);
	if (motg->irq < 0) {
		dev_err(&pdev->dev, "platform_get_irq failed\n");
		return motg->irq;
	}

	regs[0].supply = "vddcx";
	regs[1].supply = "v3p3";
	regs[2].supply = "v1p8";

	ret = devm_regulator_bulk_get(motg->phy.dev, ARRAY_SIZE(regs), regs);
	if (ret)
		return ret;

	motg->vddcx = regs[0].consumer;
	motg->v3p3  = regs[1].consumer;
	motg->v1p8  = regs[2].consumer;

	clk_set_rate(motg->clk, 60000000);

	clk_prepare_enable(motg->clk);
	clk_prepare_enable(motg->pclk);

	if (!IS_ERR(motg->core_clk))
		clk_prepare_enable(motg->core_clk);

	ret = msm_hsusb_init_vddcx(motg, 1);
	if (ret) {
		dev_err(&pdev->dev, "hsusb vddcx configuration failed\n");
		goto disable_clks;
	}

	ret = msm_hsusb_ldo_init(motg, 1);
	if (ret) {
		dev_err(&pdev->dev, "hsusb vreg configuration failed\n");
		goto disable_vddcx;
	}
	ret = msm_hsusb_ldo_set_mode(motg, 1);
	if (ret) {
		dev_err(&pdev->dev, "hsusb vreg enable failed\n");
		goto disable_ldo;
	}

	writel(0, USB_USBINTR);
	writel(0, USB_OTGSC);

	INIT_WORK(&motg->sm_work, msm_otg_sm_work);
	INIT_DELAYED_WORK(&motg->chg_work, msm_chg_detect_work);
	ret = devm_request_irq(&pdev->dev, motg->irq, msm_otg_irq, IRQF_SHARED,
					"msm_otg", motg);
	if (ret) {
		dev_err(&pdev->dev, "request irq failed\n");
		goto disable_ldo;
	}

	phy->init = msm_phy_init;
	phy->set_power = msm_otg_set_power;
	phy->notify_disconnect = msm_phy_notify_disconnect;
	phy->type = USB_PHY_TYPE_USB2;

	phy->io_ops = &msm_otg_io_ops;

	phy->otg->phy = &motg->phy;
	phy->otg->set_host = msm_otg_set_host;
	phy->otg->set_peripheral = msm_otg_set_peripheral;

	msm_usb_reset(phy);

	ret = usb_add_phy_dev(&motg->phy);
	if (ret) {
		dev_err(&pdev->dev, "usb_add_phy failed\n");
		goto disable_ldo;
	}

	platform_set_drvdata(pdev, motg);
	device_init_wakeup(&pdev->dev, 1);

	if (motg->pdata->mode == USB_DR_MODE_OTG &&
		motg->pdata->otg_control == OTG_USER_CONTROL) {
		ret = msm_otg_debugfs_init(motg);
		if (ret)
			dev_dbg(&pdev->dev, "Can not create mode change file\n");
	}

	pm_runtime_set_active(&pdev->dev);
	pm_runtime_enable(&pdev->dev);

	return 0;

disable_ldo:
	msm_hsusb_ldo_init(motg, 0);
disable_vddcx:
	msm_hsusb_init_vddcx(motg, 0);
disable_clks:
	clk_disable_unprepare(motg->pclk);
	clk_disable_unprepare(motg->clk);
	if (!IS_ERR(motg->core_clk))
		clk_disable_unprepare(motg->core_clk);
	return ret;
}
예제 #22
0
static int omap_usb2_probe(struct platform_device *pdev)
{
	struct omap_usb			*phy;
	struct usb_otg			*otg;

	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->phy.type		= USB_PHY_TYPE_USB2;

	phy->control_dev = omap_get_control_dev();
	if (IS_ERR(phy->control_dev)) {
		dev_dbg(&pdev->dev, "Failed to get control device\n");
		return -ENODEV;
	}

	phy->is_suspended	= 1;
	omap_control_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 = devm_clk_get(phy->dev, "usb_phy_cm_clk32k");
	if (IS_ERR(phy->wkupclk)) {
		dev_err(&pdev->dev, "unable to get usb_phy_cm_clk32k\n");
		return PTR_ERR(phy->wkupclk);
	}
	clk_prepare(phy->wkupclk);

	phy->optclk = devm_clk_get(phy->dev, "usb_otg_ss_refclk960m");
	if (IS_ERR(phy->optclk))
		dev_vdbg(&pdev->dev, "unable to get refclk960m\n");
	else
		clk_prepare(phy->optclk);

	usb_add_phy_dev(&phy->phy);

	platform_set_drvdata(pdev, phy);

	pm_runtime_enable(phy->dev);

	return 0;
}