Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 692 insertions, 0 deletions

diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
new file mode 100644
index 000000000..984087bbf
--- /dev/null
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -0,0 +1,692 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright (C) 2012 Marek Vasut <marex@denx.de>
+ * on behalf of DENX Software Engineering GmbH
+ */
+
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/usb/chipidea.h>
+#include <linux/usb/of.h>
+#include <linux/clk.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/pm_qos.h>
+
+#include "ci.h"
+#include "ci_hdrc_imx.h"
+
+struct ci_hdrc_imx_platform_flag {
+	unsigned int flags;
+};
+
+static const struct ci_hdrc_imx_platform_flag imx23_usb_data = {
+	.flags = CI_HDRC_TURN_VBUS_EARLY_ON |
+		CI_HDRC_DISABLE_STREAMING,
+};
+
+static const struct ci_hdrc_imx_platform_flag imx27_usb_data = {
+	.flags = CI_HDRC_DISABLE_STREAMING,
+};
+
+static const struct ci_hdrc_imx_platform_flag imx28_usb_data = {
+	.flags = CI_HDRC_IMX28_WRITE_FIX |
+		CI_HDRC_TURN_VBUS_EARLY_ON |
+		CI_HDRC_DISABLE_STREAMING,
+};
+
+static const struct ci_hdrc_imx_platform_flag imx6q_usb_data = {
+	.flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
+		CI_HDRC_TURN_VBUS_EARLY_ON |
+		CI_HDRC_DISABLE_STREAMING,
+};
+
+static const struct ci_hdrc_imx_platform_flag imx6sl_usb_data = {
+	.flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
+		CI_HDRC_TURN_VBUS_EARLY_ON |
+		CI_HDRC_DISABLE_HOST_STREAMING,
+};
+
+static const struct ci_hdrc_imx_platform_flag imx6sx_usb_data = {
+	.flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
+		CI_HDRC_TURN_VBUS_EARLY_ON |
+		CI_HDRC_DISABLE_HOST_STREAMING,
+};
+
+static const struct ci_hdrc_imx_platform_flag imx6ul_usb_data = {
+	.flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
+		CI_HDRC_TURN_VBUS_EARLY_ON |
+		CI_HDRC_DISABLE_DEVICE_STREAMING,
+};
+
+static const struct ci_hdrc_imx_platform_flag imx7d_usb_data = {
+	.flags = CI_HDRC_SUPPORTS_RUNTIME_PM,
+};
+
+static const struct ci_hdrc_imx_platform_flag imx7ulp_usb_data = {
+	.flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
+		CI_HDRC_HAS_PORTSC_PEC_MISSED |
+		CI_HDRC_PMQOS,
+};
+
+static const struct ci_hdrc_imx_platform_flag imx8ulp_usb_data = {
+	.flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
+		CI_HDRC_HAS_PORTSC_PEC_MISSED,
+};
+
+static const struct of_device_id ci_hdrc_imx_dt_ids[] = {
+	{ .compatible = "fsl,imx23-usb", .data = &imx23_usb_data},
+	{ .compatible = "fsl,imx28-usb", .data = &imx28_usb_data},
+	{ .compatible = "fsl,imx27-usb", .data = &imx27_usb_data},
+	{ .compatible = "fsl,imx6q-usb", .data = &imx6q_usb_data},
+	{ .compatible = "fsl,imx6sl-usb", .data = &imx6sl_usb_data},
+	{ .compatible = "fsl,imx6sx-usb", .data = &imx6sx_usb_data},
+	{ .compatible = "fsl,imx6ul-usb", .data = &imx6ul_usb_data},
+	{ .compatible = "fsl,imx7d-usb", .data = &imx7d_usb_data},
+	{ .compatible = "fsl,imx7ulp-usb", .data = &imx7ulp_usb_data},
+	{ .compatible = "fsl,imx8ulp-usb", .data = &imx8ulp_usb_data},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids);
+
+struct ci_hdrc_imx_data {
+	struct usb_phy *phy;
+	struct platform_device *ci_pdev;
+	struct clk *clk;
+	struct imx_usbmisc_data *usbmisc_data;
+	bool supports_runtime_pm;
+	bool override_phy_control;
+	bool in_lpm;
+	struct pinctrl *pinctrl;
+	struct pinctrl_state *pinctrl_hsic_active;
+	struct regulator *hsic_pad_regulator;
+	/* SoC before i.mx6 (except imx23/imx28) needs three clks */
+	bool need_three_clks;
+	struct clk *clk_ipg;
+	struct clk *clk_ahb;
+	struct clk *clk_per;
+	/* --------------------------------- */
+	struct pm_qos_request pm_qos_req;
+	const struct ci_hdrc_imx_platform_flag *plat_data;
+};
+
+/* Common functions shared by usbmisc drivers */
+
+static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev)
+{
+	struct platform_device *misc_pdev;
+	struct device_node *np = dev->of_node;
+	struct of_phandle_args args;
+	struct imx_usbmisc_data *data;
+	int ret;
+
+	/*
+	 * In case the fsl,usbmisc property is not present this device doesn't
+	 * need usbmisc. Return NULL (which is no error here)
+	 */
+	if (!of_get_property(np, "fsl,usbmisc", NULL))
+		return NULL;
+
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return ERR_PTR(-ENOMEM);
+
+	ret = of_parse_phandle_with_args(np, "fsl,usbmisc", "#index-cells",
+					0, &args);
+	if (ret) {
+		dev_err(dev, "Failed to parse property fsl,usbmisc, errno %d\n",
+			ret);
+		return ERR_PTR(ret);
+	}
+
+	data->index = args.args[0];
+
+	misc_pdev = of_find_device_by_node(args.np);
+	of_node_put(args.np);
+
+	if (!misc_pdev)
+		return ERR_PTR(-EPROBE_DEFER);
+
+	if (!platform_get_drvdata(misc_pdev)) {
+		put_device(&misc_pdev->dev);
+		return ERR_PTR(-EPROBE_DEFER);
+	}
+	data->dev = &misc_pdev->dev;
+
+	/*
+	 * Check the various over current related properties. If over current
+	 * detection is disabled we're not interested in the polarity.
+	 */
+	if (of_find_property(np, "disable-over-current", NULL)) {
+		data->disable_oc = 1;
+	} else if (of_find_property(np, "over-current-active-high", NULL)) {
+		data->oc_pol_active_low = 0;
+		data->oc_pol_configured = 1;
+	} else if (of_find_property(np, "over-current-active-low", NULL)) {
+		data->oc_pol_active_low = 1;
+		data->oc_pol_configured = 1;
+	} else {
+		dev_warn(dev, "No over current polarity defined\n");
+	}
+
+	data->pwr_pol = of_property_read_bool(np, "power-active-high");
+	data->evdo = of_property_read_bool(np, "external-vbus-divider");
+
+	if (of_usb_get_phy_mode(np) == USBPHY_INTERFACE_MODE_ULPI)
+		data->ulpi = 1;
+
+	if (of_property_read_u32(np, "samsung,picophy-pre-emp-curr-control",
+			&data->emp_curr_control))
+		data->emp_curr_control = -1;
+	if (of_property_read_u32(np, "samsung,picophy-dc-vol-level-adjust",
+			&data->dc_vol_level_adjust))
+		data->dc_vol_level_adjust = -1;
+
+	return data;
+}
+
+/* End of common functions shared by usbmisc drivers*/
+static int imx_get_clks(struct device *dev)
+{
+	struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+	int ret = 0;
+
+	data->clk_ipg = devm_clk_get(dev, "ipg");
+	if (IS_ERR(data->clk_ipg)) {
+		/* If the platform only needs one clocks */
+		data->clk = devm_clk_get(dev, NULL);
+		if (IS_ERR(data->clk)) {
+			ret = PTR_ERR(data->clk);
+			dev_err(dev,
+				"Failed to get clks, err=%ld,%ld\n",
+				PTR_ERR(data->clk), PTR_ERR(data->clk_ipg));
+			return ret;
+		}
+		return ret;
+	}
+
+	data->clk_ahb = devm_clk_get(dev, "ahb");
+	if (IS_ERR(data->clk_ahb)) {
+		ret = PTR_ERR(data->clk_ahb);
+		dev_err(dev,
+			"Failed to get ahb clock, err=%d\n", ret);
+		return ret;
+	}
+
+	data->clk_per = devm_clk_get(dev, "per");
+	if (IS_ERR(data->clk_per)) {
+		ret = PTR_ERR(data->clk_per);
+		dev_err(dev,
+			"Failed to get per clock, err=%d\n", ret);
+		return ret;
+	}
+
+	data->need_three_clks = true;
+	return ret;
+}
+
+static int imx_prepare_enable_clks(struct device *dev)
+{
+	struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+	int ret = 0;
+
+	if (data->need_three_clks) {
+		ret = clk_prepare_enable(data->clk_ipg);
+		if (ret) {
+			dev_err(dev,
+				"Failed to prepare/enable ipg clk, err=%d\n",
+				ret);
+			return ret;
+		}
+
+		ret = clk_prepare_enable(data->clk_ahb);
+		if (ret) {
+			dev_err(dev,
+				"Failed to prepare/enable ahb clk, err=%d\n",
+				ret);
+			clk_disable_unprepare(data->clk_ipg);
+			return ret;
+		}
+
+		ret = clk_prepare_enable(data->clk_per);
+		if (ret) {
+			dev_err(dev,
+				"Failed to prepare/enable per clk, err=%d\n",
+				ret);
+			clk_disable_unprepare(data->clk_ahb);
+			clk_disable_unprepare(data->clk_ipg);
+			return ret;
+		}
+	} else {
+		ret = clk_prepare_enable(data->clk);
+		if (ret) {
+			dev_err(dev,
+				"Failed to prepare/enable clk, err=%d\n",
+				ret);
+			return ret;
+		}
+	}
+
+	return ret;
+}
+
+static void imx_disable_unprepare_clks(struct device *dev)
+{
+	struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+
+	if (data->need_three_clks) {
+		clk_disable_unprepare(data->clk_per);
+		clk_disable_unprepare(data->clk_ahb);
+		clk_disable_unprepare(data->clk_ipg);
+	} else {
+		clk_disable_unprepare(data->clk);
+	}
+}
+
+static int ci_hdrc_imx_notify_event(struct ci_hdrc *ci, unsigned int event)
+{
+	struct device *dev = ci->dev->parent;
+	struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+	int ret = 0;
+	struct imx_usbmisc_data *mdata = data->usbmisc_data;
+
+	switch (event) {
+	case CI_HDRC_IMX_HSIC_ACTIVE_EVENT:
+		if (data->pinctrl) {
+			ret = pinctrl_select_state(data->pinctrl,
+					data->pinctrl_hsic_active);
+			if (ret)
+				dev_err(dev,
+					"hsic_active select failed, err=%d\n",
+					ret);
+		}
+		break;
+	case CI_HDRC_IMX_HSIC_SUSPEND_EVENT:
+		ret = imx_usbmisc_hsic_set_connect(mdata);
+		if (ret)
+			dev_err(dev,
+				"hsic_set_connect failed, err=%d\n", ret);
+		break;
+	case CI_HDRC_CONTROLLER_VBUS_EVENT:
+		if (ci->vbus_active)
+			ret = imx_usbmisc_charger_detection(mdata, true);
+		else
+			ret = imx_usbmisc_charger_detection(mdata, false);
+		if (ci->usb_phy)
+			schedule_work(&ci->usb_phy->chg_work);
+		break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
+static int ci_hdrc_imx_probe(struct platform_device *pdev)
+{
+	struct ci_hdrc_imx_data *data;
+	struct ci_hdrc_platform_data pdata = {
+		.name		= dev_name(&pdev->dev),
+		.capoffset	= DEF_CAPOFFSET,
+		.notify_event	= ci_hdrc_imx_notify_event,
+	};
+	int ret;
+	const struct ci_hdrc_imx_platform_flag *imx_platform_flag;
+	struct device_node *np = pdev->dev.of_node;
+	struct device *dev = &pdev->dev;
+
+	imx_platform_flag = of_device_get_match_data(&pdev->dev);
+
+	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->plat_data = imx_platform_flag;
+	pdata.flags |= imx_platform_flag->flags;
+	platform_set_drvdata(pdev, data);
+	data->usbmisc_data = usbmisc_get_init_data(dev);
+	if (IS_ERR(data->usbmisc_data))
+		return PTR_ERR(data->usbmisc_data);
+
+	if ((of_usb_get_phy_mode(dev->of_node) == USBPHY_INTERFACE_MODE_HSIC)
+		&& data->usbmisc_data) {
+		pdata.flags |= CI_HDRC_IMX_IS_HSIC;
+		data->usbmisc_data->hsic = 1;
+		data->pinctrl = devm_pinctrl_get(dev);
+		if (PTR_ERR(data->pinctrl) == -ENODEV)
+			data->pinctrl = NULL;
+		else if (IS_ERR(data->pinctrl))
+			return dev_err_probe(dev, PTR_ERR(data->pinctrl),
+					     "pinctrl get failed\n");
+
+		data->hsic_pad_regulator =
+				devm_regulator_get_optional(dev, "hsic");
+		if (PTR_ERR(data->hsic_pad_regulator) == -ENODEV) {
+			/* no pad regualator is needed */
+			data->hsic_pad_regulator = NULL;
+		} else if (IS_ERR(data->hsic_pad_regulator))
+			return dev_err_probe(dev, PTR_ERR(data->hsic_pad_regulator),
+					     "Get HSIC pad regulator error\n");
+
+		if (data->hsic_pad_regulator) {
+			ret = regulator_enable(data->hsic_pad_regulator);
+			if (ret) {
+				dev_err(dev,
+					"Failed to enable HSIC pad regulator\n");
+				return ret;
+			}
+		}
+	}
+
+	/* HSIC pinctrl handling */
+	if (data->pinctrl) {
+		struct pinctrl_state *pinctrl_hsic_idle;
+
+		pinctrl_hsic_idle = pinctrl_lookup_state(data->pinctrl, "idle");
+		if (IS_ERR(pinctrl_hsic_idle)) {
+			dev_err(dev,
+				"pinctrl_hsic_idle lookup failed, err=%ld\n",
+					PTR_ERR(pinctrl_hsic_idle));
+			return PTR_ERR(pinctrl_hsic_idle);
+		}
+
+		ret = pinctrl_select_state(data->pinctrl, pinctrl_hsic_idle);
+		if (ret) {
+			dev_err(dev, "hsic_idle select failed, err=%d\n", ret);
+			return ret;
+		}
+
+		data->pinctrl_hsic_active = pinctrl_lookup_state(data->pinctrl,
+								"active");
+		if (IS_ERR(data->pinctrl_hsic_active)) {
+			dev_err(dev,
+				"pinctrl_hsic_active lookup failed, err=%ld\n",
+					PTR_ERR(data->pinctrl_hsic_active));
+			return PTR_ERR(data->pinctrl_hsic_active);
+		}
+	}
+
+	if (pdata.flags & CI_HDRC_PMQOS)
+		cpu_latency_qos_add_request(&data->pm_qos_req, 0);
+
+	ret = imx_get_clks(dev);
+	if (ret)
+		goto disable_hsic_regulator;
+
+	ret = imx_prepare_enable_clks(dev);
+	if (ret)
+		goto disable_hsic_regulator;
+
+	data->phy = devm_usb_get_phy_by_phandle(dev, "fsl,usbphy", 0);
+	if (IS_ERR(data->phy)) {
+		ret = PTR_ERR(data->phy);
+		if (ret != -ENODEV)
+			goto err_clk;
+		data->phy = devm_usb_get_phy_by_phandle(dev, "phys", 0);
+		if (IS_ERR(data->phy)) {
+			ret = PTR_ERR(data->phy);
+			if (ret == -ENODEV)
+				data->phy = NULL;
+			else
+				goto err_clk;
+		}
+	}
+
+	pdata.usb_phy = data->phy;
+	if (data->usbmisc_data)
+		data->usbmisc_data->usb_phy = data->phy;
+
+	if ((of_device_is_compatible(np, "fsl,imx53-usb") ||
+	     of_device_is_compatible(np, "fsl,imx51-usb")) && pdata.usb_phy &&
+	    of_usb_get_phy_mode(np) == USBPHY_INTERFACE_MODE_ULPI) {
+		pdata.flags |= CI_HDRC_OVERRIDE_PHY_CONTROL;
+		data->override_phy_control = true;
+		usb_phy_init(pdata.usb_phy);
+	}
+
+	if (pdata.flags & CI_HDRC_SUPPORTS_RUNTIME_PM)
+		data->supports_runtime_pm = true;
+
+	ret = imx_usbmisc_init(data->usbmisc_data);
+	if (ret) {
+		dev_err(dev, "usbmisc init failed, ret=%d\n", ret);
+		goto err_clk;
+	}
+
+	data->ci_pdev = ci_hdrc_add_device(dev,
+				pdev->resource, pdev->num_resources,
+				&pdata);
+	if (IS_ERR(data->ci_pdev)) {
+		ret = PTR_ERR(data->ci_pdev);
+		dev_err_probe(dev, ret, "ci_hdrc_add_device failed\n");
+		goto err_clk;
+	}
+
+	if (data->usbmisc_data) {
+		if (!IS_ERR(pdata.id_extcon.edev) ||
+		    of_property_read_bool(np, "usb-role-switch"))
+			data->usbmisc_data->ext_id = 1;
+
+		if (!IS_ERR(pdata.vbus_extcon.edev) ||
+		    of_property_read_bool(np, "usb-role-switch"))
+			data->usbmisc_data->ext_vbus = 1;
+
+		/* usbmisc needs to know dr mode to choose wakeup setting */
+		data->usbmisc_data->available_role =
+			ci_hdrc_query_available_role(data->ci_pdev);
+	}
+
+	ret = imx_usbmisc_init_post(data->usbmisc_data);
+	if (ret) {
+		dev_err(dev, "usbmisc post failed, ret=%d\n", ret);
+		goto disable_device;
+	}
+
+	if (data->supports_runtime_pm) {
+		pm_runtime_set_active(dev);
+		pm_runtime_enable(dev);
+	}
+
+	device_set_wakeup_capable(dev, true);
+
+	return 0;
+
+disable_device:
+	ci_hdrc_remove_device(data->ci_pdev);
+err_clk:
+	imx_disable_unprepare_clks(dev);
+disable_hsic_regulator:
+	if (data->hsic_pad_regulator)
+		/* don't overwrite original ret (cf. EPROBE_DEFER) */
+		regulator_disable(data->hsic_pad_regulator);
+	if (pdata.flags & CI_HDRC_PMQOS)
+		cpu_latency_qos_remove_request(&data->pm_qos_req);
+	data->ci_pdev = NULL;
+	return ret;
+}
+
+static int ci_hdrc_imx_remove(struct platform_device *pdev)
+{
+	struct ci_hdrc_imx_data *data = platform_get_drvdata(pdev);
+
+	if (data->supports_runtime_pm) {
+		pm_runtime_get_sync(&pdev->dev);
+		pm_runtime_disable(&pdev->dev);
+		pm_runtime_put_noidle(&pdev->dev);
+	}
+	if (data->ci_pdev)
+		ci_hdrc_remove_device(data->ci_pdev);
+	if (data->override_phy_control)
+		usb_phy_shutdown(data->phy);
+	if (data->ci_pdev) {
+		imx_disable_unprepare_clks(&pdev->dev);
+		if (data->plat_data->flags & CI_HDRC_PMQOS)
+			cpu_latency_qos_remove_request(&data->pm_qos_req);
+		if (data->hsic_pad_regulator)
+			regulator_disable(data->hsic_pad_regulator);
+	}
+
+	return 0;
+}
+
+static void ci_hdrc_imx_shutdown(struct platform_device *pdev)
+{
+	ci_hdrc_imx_remove(pdev);
+}
+
+static int __maybe_unused imx_controller_suspend(struct device *dev)
+{
+	struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+	int ret = 0;
+
+	dev_dbg(dev, "at %s\n", __func__);
+
+	ret = imx_usbmisc_hsic_set_clk(data->usbmisc_data, false);
+	if (ret) {
+		dev_err(dev, "usbmisc hsic_set_clk failed, ret=%d\n", ret);
+		return ret;
+	}
+
+	imx_disable_unprepare_clks(dev);
+	if (data->plat_data->flags & CI_HDRC_PMQOS)
+		cpu_latency_qos_remove_request(&data->pm_qos_req);
+
+	data->in_lpm = true;
+
+	return 0;
+}
+
+static int __maybe_unused imx_controller_resume(struct device *dev)
+{
+	struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+	int ret = 0;
+
+	dev_dbg(dev, "at %s\n", __func__);
+
+	if (!data->in_lpm) {
+		WARN_ON(1);
+		return 0;
+	}
+
+	if (data->plat_data->flags & CI_HDRC_PMQOS)
+		cpu_latency_qos_add_request(&data->pm_qos_req, 0);
+
+	ret = imx_prepare_enable_clks(dev);
+	if (ret)
+		return ret;
+
+	data->in_lpm = false;
+
+	ret = imx_usbmisc_set_wakeup(data->usbmisc_data, false);
+	if (ret) {
+		dev_err(dev, "usbmisc set_wakeup failed, ret=%d\n", ret);
+		goto clk_disable;
+	}
+
+	ret = imx_usbmisc_hsic_set_clk(data->usbmisc_data, true);
+	if (ret) {
+		dev_err(dev, "usbmisc hsic_set_clk failed, ret=%d\n", ret);
+		goto hsic_set_clk_fail;
+	}
+
+	return 0;
+
+hsic_set_clk_fail:
+	imx_usbmisc_set_wakeup(data->usbmisc_data, true);
+clk_disable:
+	imx_disable_unprepare_clks(dev);
+	return ret;
+}
+
+static int __maybe_unused ci_hdrc_imx_suspend(struct device *dev)
+{
+	int ret;
+
+	struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+
+	if (data->in_lpm)
+		/* The core's suspend doesn't run */
+		return 0;
+
+	if (device_may_wakeup(dev)) {
+		ret = imx_usbmisc_set_wakeup(data->usbmisc_data, true);
+		if (ret) {
+			dev_err(dev, "usbmisc set_wakeup failed, ret=%d\n",
+					ret);
+			return ret;
+		}
+	}
+
+	ret = imx_controller_suspend(dev);
+	if (ret)
+		return ret;
+
+	pinctrl_pm_select_sleep_state(dev);
+	return ret;
+}
+
+static int __maybe_unused ci_hdrc_imx_resume(struct device *dev)
+{
+	struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+	int ret;
+
+	pinctrl_pm_select_default_state(dev);
+	ret = imx_controller_resume(dev);
+	if (!ret && data->supports_runtime_pm) {
+		pm_runtime_disable(dev);
+		pm_runtime_set_active(dev);
+		pm_runtime_enable(dev);
+	}
+
+	return ret;
+}
+
+static int __maybe_unused ci_hdrc_imx_runtime_suspend(struct device *dev)
+{
+	struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+	int ret;
+
+	if (data->in_lpm) {
+		WARN_ON(1);
+		return 0;
+	}
+
+	ret = imx_usbmisc_set_wakeup(data->usbmisc_data, true);
+	if (ret) {
+		dev_err(dev, "usbmisc set_wakeup failed, ret=%d\n", ret);
+		return ret;
+	}
+
+	return imx_controller_suspend(dev);
+}
+
+static int __maybe_unused ci_hdrc_imx_runtime_resume(struct device *dev)
+{
+	return imx_controller_resume(dev);
+}
+
+static const struct dev_pm_ops ci_hdrc_imx_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(ci_hdrc_imx_suspend, ci_hdrc_imx_resume)
+	SET_RUNTIME_PM_OPS(ci_hdrc_imx_runtime_suspend,
+			ci_hdrc_imx_runtime_resume, NULL)
+};
+static struct platform_driver ci_hdrc_imx_driver = {
+	.probe = ci_hdrc_imx_probe,
+	.remove = ci_hdrc_imx_remove,
+	.shutdown = ci_hdrc_imx_shutdown,
+	.driver = {
+		.name = "imx_usb",
+		.of_match_table = ci_hdrc_imx_dt_ids,
+		.pm = &ci_hdrc_imx_pm_ops,
+	 },
+};
+
+module_platform_driver(ci_hdrc_imx_driver);
+
+MODULE_ALIAS("platform:imx-usb");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("CI HDRC i.MX USB binding");
+MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
+MODULE_AUTHOR("Richard Zhao <richard.zhao@freescale.com>");