1f83fca07SPeter Griffin /** 2f83fca07SPeter Griffin * dwc3-st.c Support for dwc3 platform devices on ST Microelectronics platforms 3f83fca07SPeter Griffin * 4f83fca07SPeter Griffin * This is a small driver for the dwc3 to provide the glue logic 5f83fca07SPeter Griffin * to configure the controller. Tested on STi platforms. 6f83fca07SPeter Griffin * 7f83fca07SPeter Griffin * Copyright (C) 2014 Stmicroelectronics 8f83fca07SPeter Griffin * 9f83fca07SPeter Griffin * Author: Giuseppe Cavallaro <peppe.cavallaro@st.com> 10f83fca07SPeter Griffin * Contributors: Aymen Bouattay <aymen.bouattay@st.com> 11f83fca07SPeter Griffin * Peter Griffin <peter.griffin@linaro.org> 12f83fca07SPeter Griffin * 13f83fca07SPeter Griffin * This program is free software; you can redistribute it and/or modify 14f83fca07SPeter Griffin * it under the terms of the GNU General Public License as published by 15f83fca07SPeter Griffin * the Free Software Foundation; either version 2 of the License, or 16f83fca07SPeter Griffin * (at your option) any later version. 17f83fca07SPeter Griffin * 18f83fca07SPeter Griffin * Inspired by dwc3-omap.c and dwc3-exynos.c. 19f83fca07SPeter Griffin */ 20f83fca07SPeter Griffin 21f83fca07SPeter Griffin #include <linux/delay.h> 22f83fca07SPeter Griffin #include <linux/interrupt.h> 23f83fca07SPeter Griffin #include <linux/io.h> 24f83fca07SPeter Griffin #include <linux/ioport.h> 25f83fca07SPeter Griffin #include <linux/kernel.h> 26f83fca07SPeter Griffin #include <linux/mfd/syscon.h> 27f83fca07SPeter Griffin #include <linux/module.h> 28f83fca07SPeter Griffin #include <linux/of.h> 29f83fca07SPeter Griffin #include <linux/of_platform.h> 30f83fca07SPeter Griffin #include <linux/platform_device.h> 31f83fca07SPeter Griffin #include <linux/slab.h> 32f83fca07SPeter Griffin #include <linux/regmap.h> 33f83fca07SPeter Griffin #include <linux/reset.h> 344accb8a1SFelipe Balbi #include <linux/pinctrl/consumer.h> 35f83fca07SPeter Griffin #include <linux/usb/of.h> 36f83fca07SPeter Griffin 37f83fca07SPeter Griffin #include "core.h" 38f83fca07SPeter Griffin #include "io.h" 39f83fca07SPeter Griffin 40f83fca07SPeter Griffin /* glue registers */ 41f83fca07SPeter Griffin #define CLKRST_CTRL 0x00 42f83fca07SPeter Griffin #define AUX_CLK_EN BIT(0) 43f83fca07SPeter Griffin #define SW_PIPEW_RESET_N BIT(4) 44f83fca07SPeter Griffin #define EXT_CFG_RESET_N BIT(8) 45f83fca07SPeter Griffin /* 46f83fca07SPeter Griffin * 1'b0 : The host controller complies with the xHCI revision 0.96 47f83fca07SPeter Griffin * 1'b1 : The host controller complies with the xHCI revision 1.0 48f83fca07SPeter Griffin */ 49f83fca07SPeter Griffin #define XHCI_REVISION BIT(12) 50f83fca07SPeter Griffin 51f83fca07SPeter Griffin #define USB2_VBUS_MNGMNT_SEL1 0x2C 52f83fca07SPeter Griffin /* 53f83fca07SPeter Griffin * For all fields in USB2_VBUS_MNGMNT_SEL1 54f83fca07SPeter Griffin * 2’b00 : Override value from Reg 0x30 is selected 55f83fca07SPeter Griffin * 2’b01 : utmiotg_<signal_name> from usb3_top is selected 56f83fca07SPeter Griffin * 2’b10 : pipew_<signal_name> from PIPEW instance is selected 57f83fca07SPeter Griffin * 2’b11 : value is 1'b0 58f83fca07SPeter Griffin */ 59f83fca07SPeter Griffin #define USB2_VBUS_REG30 0x0 60f83fca07SPeter Griffin #define USB2_VBUS_UTMIOTG 0x1 61f83fca07SPeter Griffin #define USB2_VBUS_PIPEW 0x2 62f83fca07SPeter Griffin #define USB2_VBUS_ZERO 0x3 63f83fca07SPeter Griffin 64f83fca07SPeter Griffin #define SEL_OVERRIDE_VBUSVALID(n) (n << 0) 65f83fca07SPeter Griffin #define SEL_OVERRIDE_POWERPRESENT(n) (n << 4) 66f83fca07SPeter Griffin #define SEL_OVERRIDE_BVALID(n) (n << 8) 67f83fca07SPeter Griffin 68f83fca07SPeter Griffin /* Static DRD configuration */ 69f83fca07SPeter Griffin #define USB3_CONTROL_MASK 0xf77 70f83fca07SPeter Griffin 71f83fca07SPeter Griffin #define USB3_DEVICE_NOT_HOST BIT(0) 72f83fca07SPeter Griffin #define USB3_FORCE_VBUSVALID BIT(1) 73f83fca07SPeter Griffin #define USB3_DELAY_VBUSVALID BIT(2) 74f83fca07SPeter Griffin #define USB3_SEL_FORCE_OPMODE BIT(4) 75f83fca07SPeter Griffin #define USB3_FORCE_OPMODE(n) (n << 5) 76f83fca07SPeter Griffin #define USB3_SEL_FORCE_DPPULLDOWN2 BIT(8) 77f83fca07SPeter Griffin #define USB3_FORCE_DPPULLDOWN2 BIT(9) 78f83fca07SPeter Griffin #define USB3_SEL_FORCE_DMPULLDOWN2 BIT(10) 79f83fca07SPeter Griffin #define USB3_FORCE_DMPULLDOWN2 BIT(11) 80f83fca07SPeter Griffin 81f83fca07SPeter Griffin /** 82f83fca07SPeter Griffin * struct st_dwc3 - dwc3-st driver private structure 83f83fca07SPeter Griffin * @dev: device pointer 84f83fca07SPeter Griffin * @glue_base: ioaddr for the glue registers 85f83fca07SPeter Griffin * @regmap: regmap pointer for getting syscfg 86f83fca07SPeter Griffin * @syscfg_reg_off: usb syscfg control offset 87f83fca07SPeter Griffin * @dr_mode: drd static host/device config 88f83fca07SPeter Griffin * @rstc_pwrdn: rest controller for powerdown signal 89f83fca07SPeter Griffin * @rstc_rst: reset controller for softreset signal 90f83fca07SPeter Griffin */ 91f83fca07SPeter Griffin 92f83fca07SPeter Griffin struct st_dwc3 { 93f83fca07SPeter Griffin struct device *dev; 94f83fca07SPeter Griffin void __iomem *glue_base; 95f83fca07SPeter Griffin struct regmap *regmap; 96f83fca07SPeter Griffin int syscfg_reg_off; 97f83fca07SPeter Griffin enum usb_dr_mode dr_mode; 98f83fca07SPeter Griffin struct reset_control *rstc_pwrdn; 99f83fca07SPeter Griffin struct reset_control *rstc_rst; 100f83fca07SPeter Griffin }; 101f83fca07SPeter Griffin 102f83fca07SPeter Griffin static inline u32 st_dwc3_readl(void __iomem *base, u32 offset) 103f83fca07SPeter Griffin { 104f83fca07SPeter Griffin return readl_relaxed(base + offset); 105f83fca07SPeter Griffin } 106f83fca07SPeter Griffin 107f83fca07SPeter Griffin static inline void st_dwc3_writel(void __iomem *base, u32 offset, u32 value) 108f83fca07SPeter Griffin { 109f83fca07SPeter Griffin writel_relaxed(value, base + offset); 110f83fca07SPeter Griffin } 111f83fca07SPeter Griffin 112f83fca07SPeter Griffin /** 113f83fca07SPeter Griffin * st_dwc3_drd_init: program the port 114f83fca07SPeter Griffin * @dwc3_data: driver private structure 115f83fca07SPeter Griffin * Description: this function is to program the port as either host or device 116f83fca07SPeter Griffin * according to the static configuration passed from devicetree. 117f83fca07SPeter Griffin * OTG and dual role are not yet supported! 118f83fca07SPeter Griffin */ 119f83fca07SPeter Griffin static int st_dwc3_drd_init(struct st_dwc3 *dwc3_data) 120f83fca07SPeter Griffin { 121f83fca07SPeter Griffin u32 val; 122f83fca07SPeter Griffin int err; 123f83fca07SPeter Griffin 124f83fca07SPeter Griffin err = regmap_read(dwc3_data->regmap, dwc3_data->syscfg_reg_off, &val); 125f83fca07SPeter Griffin if (err) 126f83fca07SPeter Griffin return err; 127f83fca07SPeter Griffin 128f83fca07SPeter Griffin val &= USB3_CONTROL_MASK; 129f83fca07SPeter Griffin 130f83fca07SPeter Griffin switch (dwc3_data->dr_mode) { 131f83fca07SPeter Griffin case USB_DR_MODE_PERIPHERAL: 132f83fca07SPeter Griffin 13327a0faafSPeter Griffin val &= ~(USB3_DELAY_VBUSVALID 134f83fca07SPeter Griffin | USB3_SEL_FORCE_OPMODE | USB3_FORCE_OPMODE(0x3) 135f83fca07SPeter Griffin | USB3_SEL_FORCE_DPPULLDOWN2 | USB3_FORCE_DPPULLDOWN2 136f83fca07SPeter Griffin | USB3_SEL_FORCE_DMPULLDOWN2 | USB3_FORCE_DMPULLDOWN2); 137f83fca07SPeter Griffin 13827a0faafSPeter Griffin /* 13927a0faafSPeter Griffin * USB3_PORT2_FORCE_VBUSVALID When '1' and when 14027a0faafSPeter Griffin * USB3_PORT2_DEVICE_NOT_HOST = 1, forces VBUSVLDEXT2 input 14127a0faafSPeter Griffin * of the pico PHY to 1. 14227a0faafSPeter Griffin */ 14327a0faafSPeter Griffin 14427a0faafSPeter Griffin val |= USB3_DEVICE_NOT_HOST | USB3_FORCE_VBUSVALID; 145f83fca07SPeter Griffin break; 146f83fca07SPeter Griffin 147f83fca07SPeter Griffin case USB_DR_MODE_HOST: 148f83fca07SPeter Griffin 149f83fca07SPeter Griffin val &= ~(USB3_DEVICE_NOT_HOST | USB3_FORCE_VBUSVALID 150f83fca07SPeter Griffin | USB3_SEL_FORCE_OPMODE | USB3_FORCE_OPMODE(0x3) 151f83fca07SPeter Griffin | USB3_SEL_FORCE_DPPULLDOWN2 | USB3_FORCE_DPPULLDOWN2 152f83fca07SPeter Griffin | USB3_SEL_FORCE_DMPULLDOWN2 | USB3_FORCE_DMPULLDOWN2); 153f83fca07SPeter Griffin 154f83fca07SPeter Griffin /* 155f83fca07SPeter Griffin * USB3_DELAY_VBUSVALID is ANDed with USB_C_VBUSVALID. Thus, 156f83fca07SPeter Griffin * when set to ‘0‘, it can delay the arrival of VBUSVALID 157f83fca07SPeter Griffin * information to VBUSVLDEXT2 input of the pico PHY. 158f83fca07SPeter Griffin * We don't want to do that so we set the bit to '1'. 159f83fca07SPeter Griffin */ 160f83fca07SPeter Griffin 161f83fca07SPeter Griffin val |= USB3_DELAY_VBUSVALID; 162f83fca07SPeter Griffin break; 163f83fca07SPeter Griffin 164f83fca07SPeter Griffin default: 165f83fca07SPeter Griffin dev_err(dwc3_data->dev, "Unsupported mode of operation %d\n", 166f83fca07SPeter Griffin dwc3_data->dr_mode); 167f83fca07SPeter Griffin return -EINVAL; 168f83fca07SPeter Griffin } 169f83fca07SPeter Griffin 170f83fca07SPeter Griffin return regmap_write(dwc3_data->regmap, dwc3_data->syscfg_reg_off, val); 171f83fca07SPeter Griffin } 172f83fca07SPeter Griffin 173f83fca07SPeter Griffin /** 174f83fca07SPeter Griffin * st_dwc3_init: init the controller via glue logic 175f83fca07SPeter Griffin * @dwc3_data: driver private structure 176f83fca07SPeter Griffin */ 177f83fca07SPeter Griffin static void st_dwc3_init(struct st_dwc3 *dwc3_data) 178f83fca07SPeter Griffin { 179f83fca07SPeter Griffin u32 reg = st_dwc3_readl(dwc3_data->glue_base, CLKRST_CTRL); 180f83fca07SPeter Griffin 181f83fca07SPeter Griffin reg |= AUX_CLK_EN | EXT_CFG_RESET_N | XHCI_REVISION; 182f83fca07SPeter Griffin reg &= ~SW_PIPEW_RESET_N; 183f83fca07SPeter Griffin st_dwc3_writel(dwc3_data->glue_base, CLKRST_CTRL, reg); 184f83fca07SPeter Griffin 185f83fca07SPeter Griffin /* configure mux for vbus, powerpresent and bvalid signals */ 186f83fca07SPeter Griffin reg = st_dwc3_readl(dwc3_data->glue_base, USB2_VBUS_MNGMNT_SEL1); 187f83fca07SPeter Griffin 188f83fca07SPeter Griffin reg |= SEL_OVERRIDE_VBUSVALID(USB2_VBUS_UTMIOTG) | 189f83fca07SPeter Griffin SEL_OVERRIDE_POWERPRESENT(USB2_VBUS_UTMIOTG) | 190f83fca07SPeter Griffin SEL_OVERRIDE_BVALID(USB2_VBUS_UTMIOTG); 191f83fca07SPeter Griffin 192f83fca07SPeter Griffin st_dwc3_writel(dwc3_data->glue_base, USB2_VBUS_MNGMNT_SEL1, reg); 193f83fca07SPeter Griffin 194f83fca07SPeter Griffin reg = st_dwc3_readl(dwc3_data->glue_base, CLKRST_CTRL); 195f83fca07SPeter Griffin reg |= SW_PIPEW_RESET_N; 196f83fca07SPeter Griffin st_dwc3_writel(dwc3_data->glue_base, CLKRST_CTRL, reg); 197f83fca07SPeter Griffin } 198f83fca07SPeter Griffin 199f83fca07SPeter Griffin static int st_dwc3_probe(struct platform_device *pdev) 200f83fca07SPeter Griffin { 201f83fca07SPeter Griffin struct st_dwc3 *dwc3_data; 202f83fca07SPeter Griffin struct resource *res; 203f83fca07SPeter Griffin struct device *dev = &pdev->dev; 204f83fca07SPeter Griffin struct device_node *node = dev->of_node, *child; 20566647273SHeikki Krogerus struct platform_device *child_pdev; 206f83fca07SPeter Griffin struct regmap *regmap; 207f83fca07SPeter Griffin int ret; 208f83fca07SPeter Griffin 209f83fca07SPeter Griffin dwc3_data = devm_kzalloc(dev, sizeof(*dwc3_data), GFP_KERNEL); 210f83fca07SPeter Griffin if (!dwc3_data) 211f83fca07SPeter Griffin return -ENOMEM; 212f83fca07SPeter Griffin 213f83fca07SPeter Griffin res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "reg-glue"); 214f83fca07SPeter Griffin dwc3_data->glue_base = devm_ioremap_resource(dev, res); 215f83fca07SPeter Griffin if (IS_ERR(dwc3_data->glue_base)) 216f83fca07SPeter Griffin return PTR_ERR(dwc3_data->glue_base); 217f83fca07SPeter Griffin 218f83fca07SPeter Griffin regmap = syscon_regmap_lookup_by_phandle(node, "st,syscfg"); 219f83fca07SPeter Griffin if (IS_ERR(regmap)) 220f83fca07SPeter Griffin return PTR_ERR(regmap); 221f83fca07SPeter Griffin 222f83fca07SPeter Griffin dma_set_coherent_mask(dev, dev->coherent_dma_mask); 223f83fca07SPeter Griffin dwc3_data->dev = dev; 224f83fca07SPeter Griffin dwc3_data->regmap = regmap; 225f83fca07SPeter Griffin 226f83fca07SPeter Griffin res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "syscfg-reg"); 227f83fca07SPeter Griffin if (!res) { 228f83fca07SPeter Griffin ret = -ENXIO; 229f83fca07SPeter Griffin goto undo_platform_dev_alloc; 230f83fca07SPeter Griffin } 231f83fca07SPeter Griffin 232f83fca07SPeter Griffin dwc3_data->syscfg_reg_off = res->start; 233f83fca07SPeter Griffin 234f83fca07SPeter Griffin dev_vdbg(&pdev->dev, "glue-logic addr 0x%p, syscfg-reg offset 0x%x\n", 235f83fca07SPeter Griffin dwc3_data->glue_base, dwc3_data->syscfg_reg_off); 236f83fca07SPeter Griffin 2375baaf3b9SLee Jones dwc3_data->rstc_pwrdn = 2385baaf3b9SLee Jones devm_reset_control_get_exclusive(dev, "powerdown"); 239f83fca07SPeter Griffin if (IS_ERR(dwc3_data->rstc_pwrdn)) { 240f83fca07SPeter Griffin dev_err(&pdev->dev, "could not get power controller\n"); 241f83fca07SPeter Griffin ret = PTR_ERR(dwc3_data->rstc_pwrdn); 242f83fca07SPeter Griffin goto undo_platform_dev_alloc; 243f83fca07SPeter Griffin } 244f83fca07SPeter Griffin 245f83fca07SPeter Griffin /* Manage PowerDown */ 246f83fca07SPeter Griffin reset_control_deassert(dwc3_data->rstc_pwrdn); 247f83fca07SPeter Griffin 248002f17bcSLee Jones dwc3_data->rstc_rst = 249002f17bcSLee Jones devm_reset_control_get_shared(dev, "softreset"); 250f83fca07SPeter Griffin if (IS_ERR(dwc3_data->rstc_rst)) { 251f83fca07SPeter Griffin dev_err(&pdev->dev, "could not get reset controller\n"); 2526cd6159dSJulia Lawall ret = PTR_ERR(dwc3_data->rstc_rst); 253f83fca07SPeter Griffin goto undo_powerdown; 254f83fca07SPeter Griffin } 255f83fca07SPeter Griffin 256f83fca07SPeter Griffin /* Manage SoftReset */ 257f83fca07SPeter Griffin reset_control_deassert(dwc3_data->rstc_rst); 258f83fca07SPeter Griffin 259f83fca07SPeter Griffin child = of_get_child_by_name(node, "dwc3"); 260f83fca07SPeter Griffin if (!child) { 261f83fca07SPeter Griffin dev_err(&pdev->dev, "failed to find dwc3 core node\n"); 262f83fca07SPeter Griffin ret = -ENODEV; 263f83fca07SPeter Griffin goto undo_softreset; 264f83fca07SPeter Griffin } 265f83fca07SPeter Griffin 266f83fca07SPeter Griffin /* Allocate and initialize the core */ 267f83fca07SPeter Griffin ret = of_platform_populate(node, NULL, NULL, dev); 268f83fca07SPeter Griffin if (ret) { 269f83fca07SPeter Griffin dev_err(dev, "failed to add dwc3 core\n"); 270f83fca07SPeter Griffin goto undo_softreset; 271f83fca07SPeter Griffin } 272f83fca07SPeter Griffin 27366647273SHeikki Krogerus child_pdev = of_find_device_by_node(child); 27466647273SHeikki Krogerus if (!child_pdev) { 27566647273SHeikki Krogerus dev_err(dev, "failed to find dwc3 core device\n"); 27666647273SHeikki Krogerus ret = -ENODEV; 27766647273SHeikki Krogerus goto undo_softreset; 27866647273SHeikki Krogerus } 27966647273SHeikki Krogerus 28006e7114fSHeikki Krogerus dwc3_data->dr_mode = usb_get_dr_mode(&child_pdev->dev); 28166647273SHeikki Krogerus 282f83fca07SPeter Griffin /* 283f83fca07SPeter Griffin * Configure the USB port as device or host according to the static 284f83fca07SPeter Griffin * configuration passed from DT. 285f83fca07SPeter Griffin * DRD is the only mode currently supported so this will be enhanced 286f83fca07SPeter Griffin * as soon as OTG is available. 287f83fca07SPeter Griffin */ 288f83fca07SPeter Griffin ret = st_dwc3_drd_init(dwc3_data); 289f83fca07SPeter Griffin if (ret) { 290f83fca07SPeter Griffin dev_err(dev, "drd initialisation failed\n"); 291f83fca07SPeter Griffin goto undo_softreset; 292f83fca07SPeter Griffin } 293f83fca07SPeter Griffin 294f83fca07SPeter Griffin /* ST glue logic init */ 295f83fca07SPeter Griffin st_dwc3_init(dwc3_data); 296f83fca07SPeter Griffin 297f83fca07SPeter Griffin platform_set_drvdata(pdev, dwc3_data); 298f83fca07SPeter Griffin return 0; 299f83fca07SPeter Griffin 300f83fca07SPeter Griffin undo_softreset: 301f83fca07SPeter Griffin reset_control_assert(dwc3_data->rstc_rst); 302f83fca07SPeter Griffin undo_powerdown: 303f83fca07SPeter Griffin reset_control_assert(dwc3_data->rstc_pwrdn); 304f83fca07SPeter Griffin undo_platform_dev_alloc: 305f83fca07SPeter Griffin platform_device_put(pdev); 306f83fca07SPeter Griffin return ret; 307f83fca07SPeter Griffin } 308f83fca07SPeter Griffin 309f83fca07SPeter Griffin static int st_dwc3_remove(struct platform_device *pdev) 310f83fca07SPeter Griffin { 311f83fca07SPeter Griffin struct st_dwc3 *dwc3_data = platform_get_drvdata(pdev); 312f83fca07SPeter Griffin 313f83fca07SPeter Griffin of_platform_depopulate(&pdev->dev); 314f83fca07SPeter Griffin 315f83fca07SPeter Griffin reset_control_assert(dwc3_data->rstc_pwrdn); 316f83fca07SPeter Griffin reset_control_assert(dwc3_data->rstc_rst); 317f83fca07SPeter Griffin 318f83fca07SPeter Griffin return 0; 319f83fca07SPeter Griffin } 320f83fca07SPeter Griffin 321f83fca07SPeter Griffin #ifdef CONFIG_PM_SLEEP 322f83fca07SPeter Griffin static int st_dwc3_suspend(struct device *dev) 323f83fca07SPeter Griffin { 324f83fca07SPeter Griffin struct st_dwc3 *dwc3_data = dev_get_drvdata(dev); 325f83fca07SPeter Griffin 326f83fca07SPeter Griffin reset_control_assert(dwc3_data->rstc_pwrdn); 327f83fca07SPeter Griffin reset_control_assert(dwc3_data->rstc_rst); 328f83fca07SPeter Griffin 329f83fca07SPeter Griffin pinctrl_pm_select_sleep_state(dev); 330f83fca07SPeter Griffin 331f83fca07SPeter Griffin return 0; 332f83fca07SPeter Griffin } 333f83fca07SPeter Griffin 334f83fca07SPeter Griffin static int st_dwc3_resume(struct device *dev) 335f83fca07SPeter Griffin { 336f83fca07SPeter Griffin struct st_dwc3 *dwc3_data = dev_get_drvdata(dev); 337f83fca07SPeter Griffin int ret; 338f83fca07SPeter Griffin 339f83fca07SPeter Griffin pinctrl_pm_select_default_state(dev); 340f83fca07SPeter Griffin 341f83fca07SPeter Griffin reset_control_deassert(dwc3_data->rstc_pwrdn); 342f83fca07SPeter Griffin reset_control_deassert(dwc3_data->rstc_rst); 343f83fca07SPeter Griffin 344f83fca07SPeter Griffin ret = st_dwc3_drd_init(dwc3_data); 345f83fca07SPeter Griffin if (ret) { 346f83fca07SPeter Griffin dev_err(dev, "drd initialisation failed\n"); 347f83fca07SPeter Griffin return ret; 348f83fca07SPeter Griffin } 349f83fca07SPeter Griffin 350f83fca07SPeter Griffin /* ST glue logic init */ 351f83fca07SPeter Griffin st_dwc3_init(dwc3_data); 352f83fca07SPeter Griffin 353f83fca07SPeter Griffin return 0; 354f83fca07SPeter Griffin } 355f83fca07SPeter Griffin #endif /* CONFIG_PM_SLEEP */ 356f83fca07SPeter Griffin 357f83fca07SPeter Griffin static SIMPLE_DEV_PM_OPS(st_dwc3_dev_pm_ops, st_dwc3_suspend, st_dwc3_resume); 358f83fca07SPeter Griffin 359f83fca07SPeter Griffin static const struct of_device_id st_dwc3_match[] = { 360f83fca07SPeter Griffin { .compatible = "st,stih407-dwc3" }, 361f83fca07SPeter Griffin { /* sentinel */ }, 362f83fca07SPeter Griffin }; 363f83fca07SPeter Griffin 364f83fca07SPeter Griffin MODULE_DEVICE_TABLE(of, st_dwc3_match); 365f83fca07SPeter Griffin 366f83fca07SPeter Griffin static struct platform_driver st_dwc3_driver = { 367f83fca07SPeter Griffin .probe = st_dwc3_probe, 368f83fca07SPeter Griffin .remove = st_dwc3_remove, 369f83fca07SPeter Griffin .driver = { 370f83fca07SPeter Griffin .name = "usb-st-dwc3", 371f83fca07SPeter Griffin .of_match_table = st_dwc3_match, 372f83fca07SPeter Griffin .pm = &st_dwc3_dev_pm_ops, 373f83fca07SPeter Griffin }, 374f83fca07SPeter Griffin }; 375f83fca07SPeter Griffin 376f83fca07SPeter Griffin module_platform_driver(st_dwc3_driver); 377f83fca07SPeter Griffin 378f83fca07SPeter Griffin MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>"); 379f83fca07SPeter Griffin MODULE_DESCRIPTION("DesignWare USB3 STi Glue Layer"); 380f83fca07SPeter Griffin MODULE_LICENSE("GPL v2"); 381