Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 1 | /* |
Anand Gadiyar | 4792a15 | 2010-11-21 23:23:42 +0530 | [diff] [blame] | 2 | * ehci-omap.c - driver for USBHOST on OMAP3/4 processors |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 3 | * |
Anand Gadiyar | 4792a15 | 2010-11-21 23:23:42 +0530 | [diff] [blame] | 4 | * Bus Glue for the EHCI controllers in OMAP3/4 |
| 5 | * Tested on several OMAP3 boards, and OMAP4 Pandaboard |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 6 | * |
Roger Quadros | dcd6406 | 2013-03-12 12:44:41 +0200 | [diff] [blame] | 7 | * Copyright (C) 2007-2013 Texas Instruments, Inc. |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 8 | * Author: Vikram Pandita <vikram.pandita@ti.com> |
Anand Gadiyar | 4792a15 | 2010-11-21 23:23:42 +0530 | [diff] [blame] | 9 | * Author: Anand Gadiyar <gadiyar@ti.com> |
Keshava Munegowda | 1940316 | 2011-03-01 20:08:21 +0530 | [diff] [blame] | 10 | * Author: Keshava Munegowda <keshava_mgowda@ti.com> |
Roger Quadros | dcd6406 | 2013-03-12 12:44:41 +0200 | [diff] [blame] | 11 | * Author: Roger Quadros <rogerq@ti.com> |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 12 | * |
| 13 | * Copyright (C) 2009 Nokia Corporation |
| 14 | * Contact: Felipe Balbi <felipe.balbi@nokia.com> |
| 15 | * |
| 16 | * Based on "ehci-fsl.c" and "ehci-au1xxx.c" ehci glue layers |
| 17 | * |
| 18 | * This program is free software; you can redistribute it and/or modify |
| 19 | * it under the terms of the GNU General Public License as published by |
| 20 | * the Free Software Foundation; either version 2 of the License, or |
| 21 | * (at your option) any later version. |
| 22 | * |
| 23 | * This program is distributed in the hope that it will be useful, |
| 24 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 25 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 26 | * GNU General Public License for more details. |
| 27 | * |
| 28 | * You should have received a copy of the GNU General Public License |
| 29 | * along with this program; if not, write to the Free Software |
| 30 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 31 | * |
Keshava Munegowda | 1940316 | 2011-03-01 20:08:21 +0530 | [diff] [blame] | 32 | * TODO (last updated Feb 27, 2010): |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 33 | * - add kernel-doc |
| 34 | * - enable AUTOIDLE |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 35 | * - add suspend/resume |
Anand Gadiyar | 4792a15 | 2010-11-21 23:23:42 +0530 | [diff] [blame] | 36 | * - add HSIC and TLL support |
| 37 | * - convert to use hwmod and runtime PM |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 38 | */ |
| 39 | |
Alan Stern | 54a41966 | 2013-03-12 12:44:39 +0200 | [diff] [blame] | 40 | #include <linux/kernel.h> |
| 41 | #include <linux/module.h> |
| 42 | #include <linux/io.h> |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 43 | #include <linux/platform_device.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 44 | #include <linux/slab.h> |
Ajay Kumar Gupta | 5aa4af2 | 2010-07-08 14:03:02 +0530 | [diff] [blame] | 45 | #include <linux/usb/ulpi.h> |
Keshava Munegowda | 6c984b0 | 2011-10-11 13:22:11 +0530 | [diff] [blame] | 46 | #include <linux/pm_runtime.h> |
Keshava Munegowda | 1fcb57d | 2012-03-19 12:12:47 +0530 | [diff] [blame] | 47 | #include <linux/gpio.h> |
Anand Gadiyar | 354ab85 | 2012-06-05 15:34:27 +0300 | [diff] [blame] | 48 | #include <linux/clk.h> |
Alan Stern | 54a41966 | 2013-03-12 12:44:39 +0200 | [diff] [blame] | 49 | #include <linux/usb.h> |
| 50 | #include <linux/usb/hcd.h> |
Roger Quadros | a1ae0af | 2013-03-12 12:44:48 +0200 | [diff] [blame] | 51 | #include <linux/of.h> |
| 52 | #include <linux/dma-mapping.h> |
Alan Stern | 54a41966 | 2013-03-12 12:44:39 +0200 | [diff] [blame] | 53 | |
| 54 | #include "ehci.h" |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 55 | |
Felipe Balbi | e8c4a7a | 2012-10-24 14:26:19 -0700 | [diff] [blame] | 56 | #include <linux/platform_data/usb-omap.h> |
| 57 | |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 58 | /* EHCI Register Set */ |
Anand Gadiyar | 572538d | 2010-05-06 20:09:48 +0530 | [diff] [blame] | 59 | #define EHCI_INSNREG04 (0xA0) |
| 60 | #define EHCI_INSNREG04_DISABLE_UNSUSPEND (1 << 5) |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 61 | #define EHCI_INSNREG05_ULPI (0xA4) |
| 62 | #define EHCI_INSNREG05_ULPI_CONTROL_SHIFT 31 |
| 63 | #define EHCI_INSNREG05_ULPI_PORTSEL_SHIFT 24 |
| 64 | #define EHCI_INSNREG05_ULPI_OPSEL_SHIFT 22 |
| 65 | #define EHCI_INSNREG05_ULPI_REGADD_SHIFT 16 |
| 66 | #define EHCI_INSNREG05_ULPI_EXTREGADD_SHIFT 8 |
| 67 | #define EHCI_INSNREG05_ULPI_WRDATA_SHIFT 0 |
| 68 | |
Alan Stern | 54a41966 | 2013-03-12 12:44:39 +0200 | [diff] [blame] | 69 | #define DRIVER_DESC "OMAP-EHCI Host Controller driver" |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 70 | |
Alan Stern | 54a41966 | 2013-03-12 12:44:39 +0200 | [diff] [blame] | 71 | static const char hcd_name[] = "ehci-omap"; |
| 72 | |
| 73 | /*-------------------------------------------------------------------------*/ |
Keshava Munegowda | 1940316 | 2011-03-01 20:08:21 +0530 | [diff] [blame] | 74 | |
Roger Quadros | dcd6406 | 2013-03-12 12:44:41 +0200 | [diff] [blame] | 75 | struct omap_hcd { |
| 76 | struct usb_phy *phy[OMAP3_HS_USB_PORTS]; /* one PHY for each port */ |
| 77 | int nports; |
| 78 | }; |
Keshava Munegowda | 1940316 | 2011-03-01 20:08:21 +0530 | [diff] [blame] | 79 | |
| 80 | static inline void ehci_write(void __iomem *base, u32 reg, u32 val) |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 81 | { |
| 82 | __raw_writel(val, base + reg); |
| 83 | } |
| 84 | |
Keshava Munegowda | 1940316 | 2011-03-01 20:08:21 +0530 | [diff] [blame] | 85 | static inline u32 ehci_read(void __iomem *base, u32 reg) |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 86 | { |
| 87 | return __raw_readl(base + reg); |
| 88 | } |
| 89 | |
Alan Stern | 1a49e2a | 2012-07-09 15:55:14 -0400 | [diff] [blame] | 90 | static int omap_ehci_init(struct usb_hcd *hcd) |
| 91 | { |
Roger Quadros | 87425ad | 2013-03-12 12:44:42 +0200 | [diff] [blame] | 92 | struct ehci_hcd *ehci = hcd_to_ehci(hcd); |
Roger Quadros | 49f0921 | 2013-03-13 15:14:43 +0200 | [diff] [blame^] | 93 | int rc; |
Alan Stern | 1a49e2a | 2012-07-09 15:55:14 -0400 | [diff] [blame] | 94 | |
Alan Stern | 1a49e2a | 2012-07-09 15:55:14 -0400 | [diff] [blame] | 95 | /* we know this is the memory we want, no need to ioremap again */ |
| 96 | ehci->caps = hcd->regs; |
| 97 | |
| 98 | rc = ehci_setup(hcd); |
| 99 | |
Alan Stern | 1a49e2a | 2012-07-09 15:55:14 -0400 | [diff] [blame] | 100 | return rc; |
| 101 | } |
| 102 | |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 103 | /* configure so an HC device and id are always provided */ |
| 104 | /* always called with process context; sleeping is OK */ |
| 105 | |
Alan Stern | 54a41966 | 2013-03-12 12:44:39 +0200 | [diff] [blame] | 106 | static struct hc_driver __read_mostly ehci_omap_hc_driver; |
| 107 | |
| 108 | static const struct ehci_driver_overrides ehci_omap_overrides __initdata = { |
Roger Quadros | dcd6406 | 2013-03-12 12:44:41 +0200 | [diff] [blame] | 109 | .reset = omap_ehci_init, |
| 110 | .extra_priv_size = sizeof(struct omap_hcd), |
Alan Stern | 54a41966 | 2013-03-12 12:44:39 +0200 | [diff] [blame] | 111 | }; |
| 112 | |
Roger Quadros | a1ae0af | 2013-03-12 12:44:48 +0200 | [diff] [blame] | 113 | static u64 omap_ehci_dma_mask = DMA_BIT_MASK(32); |
| 114 | |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 115 | /** |
| 116 | * ehci_hcd_omap_probe - initialize TI-based HCDs |
| 117 | * |
| 118 | * Allocates basic resources for this USB host controller, and |
| 119 | * then invokes the start() method for the HCD associated with it |
| 120 | * through the hotplug entry's driver_data. |
| 121 | */ |
| 122 | static int ehci_hcd_omap_probe(struct platform_device *pdev) |
| 123 | { |
Roger Quadros | dcd6406 | 2013-03-12 12:44:41 +0200 | [diff] [blame] | 124 | struct device *dev = &pdev->dev; |
| 125 | struct usbhs_omap_platform_data *pdata = dev->platform_data; |
| 126 | struct resource *res; |
| 127 | struct usb_hcd *hcd; |
| 128 | void __iomem *regs; |
| 129 | int ret = -ENODEV; |
| 130 | int irq; |
| 131 | int i; |
Roger Quadros | dcd6406 | 2013-03-12 12:44:41 +0200 | [diff] [blame] | 132 | struct omap_hcd *omap; |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 133 | |
| 134 | if (usb_disabled()) |
Keshava Munegowda | 1940316 | 2011-03-01 20:08:21 +0530 | [diff] [blame] | 135 | return -ENODEV; |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 136 | |
Keshava Munegowda | 1940316 | 2011-03-01 20:08:21 +0530 | [diff] [blame] | 137 | if (!dev->parent) { |
| 138 | dev_err(dev, "Missing parent device\n"); |
| 139 | return -ENODEV; |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 140 | } |
| 141 | |
Roger Quadros | a1ae0af | 2013-03-12 12:44:48 +0200 | [diff] [blame] | 142 | /* For DT boot, get platform data from parent. i.e. usbhshost */ |
| 143 | if (dev->of_node) { |
| 144 | pdata = dev->parent->platform_data; |
| 145 | dev->platform_data = pdata; |
| 146 | } |
| 147 | |
| 148 | if (!pdata) { |
| 149 | dev_err(dev, "Missing platform data\n"); |
| 150 | return -ENODEV; |
| 151 | } |
| 152 | |
Roger Quadros | 3414211 | 2013-03-12 12:44:45 +0200 | [diff] [blame] | 153 | irq = platform_get_irq(pdev, 0); |
Keshava Munegowda | 1940316 | 2011-03-01 20:08:21 +0530 | [diff] [blame] | 154 | if (irq < 0) { |
| 155 | dev_err(dev, "EHCI irq failed\n"); |
| 156 | return -ENODEV; |
| 157 | } |
| 158 | |
Roger Quadros | 3414211 | 2013-03-12 12:44:45 +0200 | [diff] [blame] | 159 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
Roger Quadros | 18c2bb1 | 2013-03-12 12:44:40 +0200 | [diff] [blame] | 160 | regs = devm_ioremap_resource(dev, res); |
| 161 | if (IS_ERR(regs)) |
| 162 | return PTR_ERR(regs); |
Keshava Munegowda | 1940316 | 2011-03-01 20:08:21 +0530 | [diff] [blame] | 163 | |
Roger Quadros | a1ae0af | 2013-03-12 12:44:48 +0200 | [diff] [blame] | 164 | /* |
| 165 | * Right now device-tree probed devices don't get dma_mask set. |
| 166 | * Since shared usb code relies on it, set it here for now. |
| 167 | * Once we have dma capability bindings this can go away. |
| 168 | */ |
| 169 | if (!pdev->dev.dma_mask) |
| 170 | pdev->dev.dma_mask = &omap_ehci_dma_mask; |
| 171 | |
Keshava Munegowda | 1940316 | 2011-03-01 20:08:21 +0530 | [diff] [blame] | 172 | hcd = usb_create_hcd(&ehci_omap_hc_driver, dev, |
| 173 | dev_name(dev)); |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 174 | if (!hcd) { |
Roger Quadros | 18c2bb1 | 2013-03-12 12:44:40 +0200 | [diff] [blame] | 175 | dev_err(dev, "Failed to create HCD\n"); |
| 176 | return -ENOMEM; |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 177 | } |
| 178 | |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 179 | hcd->rsrc_start = res->start; |
| 180 | hcd->rsrc_len = resource_size(res); |
Keshava Munegowda | 1940316 | 2011-03-01 20:08:21 +0530 | [diff] [blame] | 181 | hcd->regs = regs; |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 182 | |
Roger Quadros | dcd6406 | 2013-03-12 12:44:41 +0200 | [diff] [blame] | 183 | omap = (struct omap_hcd *)hcd_to_ehci(hcd)->priv; |
| 184 | omap->nports = pdata->nports; |
| 185 | |
| 186 | platform_set_drvdata(pdev, hcd); |
| 187 | |
| 188 | /* get the PHY devices if needed */ |
| 189 | for (i = 0 ; i < omap->nports ; i++) { |
| 190 | struct usb_phy *phy; |
| 191 | |
Roger Quadros | dcd6406 | 2013-03-12 12:44:41 +0200 | [diff] [blame] | 192 | /* get the PHY device */ |
Roger Quadros | a1ae0af | 2013-03-12 12:44:48 +0200 | [diff] [blame] | 193 | if (dev->of_node) |
| 194 | phy = devm_usb_get_phy_by_phandle(dev, "phys", i); |
| 195 | else |
| 196 | phy = devm_usb_get_phy_dev(dev, i); |
Roger Quadros | dcd6406 | 2013-03-12 12:44:41 +0200 | [diff] [blame] | 197 | if (IS_ERR(phy) || !phy) { |
Roger Quadros | a2f450c | 2013-03-12 12:44:49 +0200 | [diff] [blame] | 198 | /* Don't bail out if PHY is not absolutely necessary */ |
| 199 | if (pdata->port_mode[i] != OMAP_EHCI_PORT_MODE_PHY) |
| 200 | continue; |
| 201 | |
Roger Quadros | dcd6406 | 2013-03-12 12:44:41 +0200 | [diff] [blame] | 202 | ret = IS_ERR(phy) ? PTR_ERR(phy) : -ENODEV; |
| 203 | dev_err(dev, "Can't get PHY device for port %d: %d\n", |
| 204 | i, ret); |
| 205 | goto err_phy; |
| 206 | } |
| 207 | |
| 208 | omap->phy[i] = phy; |
Roger Quadros | dcd6406 | 2013-03-12 12:44:41 +0200 | [diff] [blame] | 209 | } |
| 210 | |
Keshava Munegowda | 6c984b0 | 2011-10-11 13:22:11 +0530 | [diff] [blame] | 211 | pm_runtime_enable(dev); |
| 212 | pm_runtime_get_sync(dev); |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 213 | |
Keshava Munegowda | 1940316 | 2011-03-01 20:08:21 +0530 | [diff] [blame] | 214 | /* |
| 215 | * An undocumented "feature" in the OMAP3 EHCI controller, |
| 216 | * causes suspended ports to be taken out of suspend when |
| 217 | * the USBCMD.Run/Stop bit is cleared (for example when |
| 218 | * we do ehci_bus_suspend). |
| 219 | * This breaks suspend-resume if the root-hub is allowed |
| 220 | * to suspend. Writing 1 to this undocumented register bit |
| 221 | * disables this feature and restores normal behavior. |
| 222 | */ |
| 223 | ehci_write(regs, EHCI_INSNREG04, |
| 224 | EHCI_INSNREG04_DISABLE_UNSUSPEND); |
| 225 | |
Russ Dill | 3aa2ae7 | 2012-05-04 04:24:47 -0700 | [diff] [blame] | 226 | ret = usb_add_hcd(hcd, irq, IRQF_SHARED); |
| 227 | if (ret) { |
| 228 | dev_err(dev, "failed to add hcd with err %d\n", ret); |
Russ Dill | 984e974 | 2012-06-21 03:44:31 -0700 | [diff] [blame] | 229 | goto err_pm_runtime; |
Russ Dill | 3aa2ae7 | 2012-05-04 04:24:47 -0700 | [diff] [blame] | 230 | } |
| 231 | |
Roger Quadros | 49f0921 | 2013-03-13 15:14:43 +0200 | [diff] [blame^] | 232 | /* |
| 233 | * Bring PHYs out of reset. |
| 234 | * Even though HSIC mode is a PHY-less mode, the reset |
| 235 | * line exists between the chips and can be modelled |
| 236 | * as a PHY device for reset control. |
| 237 | */ |
| 238 | for (i = 0; i < omap->nports; i++) { |
| 239 | if (!omap->phy[i]) |
| 240 | continue; |
| 241 | |
| 242 | usb_phy_init(omap->phy[i]); |
| 243 | /* bring PHY out of suspend */ |
| 244 | usb_phy_set_suspend(omap->phy[i], 0); |
| 245 | } |
Anand Gadiyar | 354ab85 | 2012-06-05 15:34:27 +0300 | [diff] [blame] | 246 | |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 247 | return 0; |
| 248 | |
Russ Dill | 984e974 | 2012-06-21 03:44:31 -0700 | [diff] [blame] | 249 | err_pm_runtime: |
Keshava Munegowda | 6c984b0 | 2011-10-11 13:22:11 +0530 | [diff] [blame] | 250 | pm_runtime_put_sync(dev); |
Roger Quadros | dcd6406 | 2013-03-12 12:44:41 +0200 | [diff] [blame] | 251 | |
| 252 | err_phy: |
| 253 | for (i = 0; i < omap->nports; i++) { |
| 254 | if (omap->phy[i]) |
| 255 | usb_phy_shutdown(omap->phy[i]); |
| 256 | } |
| 257 | |
Russ Dill | 984e974 | 2012-06-21 03:44:31 -0700 | [diff] [blame] | 258 | usb_put_hcd(hcd); |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 259 | |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 260 | return ret; |
| 261 | } |
| 262 | |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 263 | |
| 264 | /** |
| 265 | * ehci_hcd_omap_remove - shutdown processing for EHCI HCDs |
| 266 | * @pdev: USB Host Controller being removed |
| 267 | * |
| 268 | * Reverses the effect of usb_ehci_hcd_omap_probe(), first invoking |
| 269 | * the HCD's stop() method. It is always called from a thread |
| 270 | * context, normally "rmmod", "apmd", or something similar. |
| 271 | */ |
| 272 | static int ehci_hcd_omap_remove(struct platform_device *pdev) |
| 273 | { |
Roger Quadros | dcd6406 | 2013-03-12 12:44:41 +0200 | [diff] [blame] | 274 | struct device *dev = &pdev->dev; |
| 275 | struct usb_hcd *hcd = dev_get_drvdata(dev); |
| 276 | struct omap_hcd *omap = (struct omap_hcd *)hcd_to_ehci(hcd)->priv; |
| 277 | int i; |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 278 | |
| 279 | usb_remove_hcd(hcd); |
Anand Gadiyar | 354ab85 | 2012-06-05 15:34:27 +0300 | [diff] [blame] | 280 | |
Roger Quadros | dcd6406 | 2013-03-12 12:44:41 +0200 | [diff] [blame] | 281 | for (i = 0; i < omap->nports; i++) { |
| 282 | if (omap->phy[i]) |
| 283 | usb_phy_shutdown(omap->phy[i]); |
| 284 | } |
| 285 | |
| 286 | usb_put_hcd(hcd); |
Keshava Munegowda | 6c984b0 | 2011-10-11 13:22:11 +0530 | [diff] [blame] | 287 | pm_runtime_put_sync(dev); |
| 288 | pm_runtime_disable(dev); |
| 289 | |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 290 | return 0; |
| 291 | } |
| 292 | |
| 293 | static void ehci_hcd_omap_shutdown(struct platform_device *pdev) |
| 294 | { |
Keshava Munegowda | 1940316 | 2011-03-01 20:08:21 +0530 | [diff] [blame] | 295 | struct usb_hcd *hcd = dev_get_drvdata(&pdev->dev); |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 296 | |
| 297 | if (hcd->driver->shutdown) |
| 298 | hcd->driver->shutdown(hcd); |
| 299 | } |
| 300 | |
Roger Quadros | a1ae0af | 2013-03-12 12:44:48 +0200 | [diff] [blame] | 301 | static const struct of_device_id omap_ehci_dt_ids[] = { |
| 302 | { .compatible = "ti,ehci-omap" }, |
| 303 | { } |
| 304 | }; |
| 305 | |
| 306 | MODULE_DEVICE_TABLE(of, omap_ehci_dt_ids); |
| 307 | |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 308 | static struct platform_driver ehci_hcd_omap_driver = { |
| 309 | .probe = ehci_hcd_omap_probe, |
| 310 | .remove = ehci_hcd_omap_remove, |
| 311 | .shutdown = ehci_hcd_omap_shutdown, |
| 312 | /*.suspend = ehci_hcd_omap_suspend, */ |
| 313 | /*.resume = ehci_hcd_omap_resume, */ |
| 314 | .driver = { |
Alan Stern | 54a41966 | 2013-03-12 12:44:39 +0200 | [diff] [blame] | 315 | .name = hcd_name, |
Roger Quadros | a1ae0af | 2013-03-12 12:44:48 +0200 | [diff] [blame] | 316 | .of_match_table = of_match_ptr(omap_ehci_dt_ids), |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 317 | } |
| 318 | }; |
| 319 | |
| 320 | /*-------------------------------------------------------------------------*/ |
| 321 | |
Alan Stern | 54a41966 | 2013-03-12 12:44:39 +0200 | [diff] [blame] | 322 | static int __init ehci_omap_init(void) |
| 323 | { |
| 324 | if (usb_disabled()) |
| 325 | return -ENODEV; |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 326 | |
Alan Stern | 54a41966 | 2013-03-12 12:44:39 +0200 | [diff] [blame] | 327 | pr_info("%s: " DRIVER_DESC "\n", hcd_name); |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 328 | |
Alan Stern | 54a41966 | 2013-03-12 12:44:39 +0200 | [diff] [blame] | 329 | ehci_init_driver(&ehci_omap_hc_driver, &ehci_omap_overrides); |
| 330 | return platform_driver_register(&ehci_hcd_omap_driver); |
| 331 | } |
| 332 | module_init(ehci_omap_init); |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 333 | |
Alan Stern | 54a41966 | 2013-03-12 12:44:39 +0200 | [diff] [blame] | 334 | static void __exit ehci_omap_cleanup(void) |
| 335 | { |
| 336 | platform_driver_unregister(&ehci_hcd_omap_driver); |
| 337 | } |
| 338 | module_exit(ehci_omap_cleanup); |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 339 | |
Roger Quadros | 0475352 | 2013-02-14 17:08:09 +0200 | [diff] [blame] | 340 | MODULE_ALIAS("platform:ehci-omap"); |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 341 | MODULE_AUTHOR("Texas Instruments, Inc."); |
| 342 | MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>"); |
Roger Quadros | a1ae0af | 2013-03-12 12:44:48 +0200 | [diff] [blame] | 343 | MODULE_AUTHOR("Roger Quadros <rogerq@ti.com>"); |
Felipe Balbi | 54ab2b0 | 2009-10-14 11:44:14 +0300 | [diff] [blame] | 344 | |
Alan Stern | 54a41966 | 2013-03-12 12:44:39 +0200 | [diff] [blame] | 345 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 346 | MODULE_LICENSE("GPL"); |