Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Generic platform ehci driver |
| 3 | * |
| 4 | * Copyright 2007 Steven Brown <sbrown@cortland.com> |
| 5 | * Copyright 2010-2012 Hauke Mehrtens <hauke@hauke-m.de> |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 6 | * Copyright 2014 Hans de Goede <hdegoede@redhat.com> |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 7 | * |
| 8 | * Derived from the ohci-ssb driver |
| 9 | * Copyright 2007 Michael Buesch <m@bues.ch> |
| 10 | * |
| 11 | * Derived from the EHCI-PCI driver |
| 12 | * Copyright (c) 2000-2004 by David Brownell |
| 13 | * |
| 14 | * Derived from the ohci-pci driver |
| 15 | * Copyright 1999 Roman Weissgaerber |
| 16 | * Copyright 2000-2002 David Brownell |
| 17 | * Copyright 1999 Linus Torvalds |
| 18 | * Copyright 1999 Gregory P. Smith |
| 19 | * |
| 20 | * Licensed under the GNU/GPL. See COPYING for details. |
| 21 | */ |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 22 | #include <linux/clk.h> |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 23 | #include <linux/dma-mapping.h> |
Thierry Reding | 148e113 | 2013-01-21 11:09:22 +0100 | [diff] [blame] | 24 | #include <linux/err.h> |
Alan Stern | 99f9193 | 2012-11-01 11:13:08 -0400 | [diff] [blame] | 25 | #include <linux/kernel.h> |
Alan Stern | d1bb67a | 2012-11-02 10:13:24 -0400 | [diff] [blame] | 26 | #include <linux/hrtimer.h> |
| 27 | #include <linux/io.h> |
Alan Stern | 99f9193 | 2012-11-01 11:13:08 -0400 | [diff] [blame] | 28 | #include <linux/module.h> |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 29 | #include <linux/of.h> |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 30 | #include <linux/phy/phy.h> |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 31 | #include <linux/platform_device.h> |
Alan Stern | 99f9193 | 2012-11-01 11:13:08 -0400 | [diff] [blame] | 32 | #include <linux/usb.h> |
| 33 | #include <linux/usb/hcd.h> |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 34 | #include <linux/usb/ehci_pdriver.h> |
| 35 | |
Alan Stern | 99f9193 | 2012-11-01 11:13:08 -0400 | [diff] [blame] | 36 | #include "ehci.h" |
| 37 | |
| 38 | #define DRIVER_DESC "EHCI generic platform driver" |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 39 | #define EHCI_MAX_CLKS 3 |
| 40 | #define hcd_to_ehci_priv(h) ((struct ehci_platform_priv *)hcd_to_ehci(h)->priv) |
| 41 | |
| 42 | struct ehci_platform_priv { |
| 43 | struct clk *clks[EHCI_MAX_CLKS]; |
| 44 | struct phy *phy; |
| 45 | }; |
Alan Stern | 99f9193 | 2012-11-01 11:13:08 -0400 | [diff] [blame] | 46 | |
| 47 | static const char hcd_name[] = "ehci-platform"; |
| 48 | |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 49 | static int ehci_platform_reset(struct usb_hcd *hcd) |
| 50 | { |
| 51 | struct platform_device *pdev = to_platform_device(hcd->self.controller); |
Jingoo Han | d4f09e2 | 2013-07-30 19:59:40 +0900 | [diff] [blame] | 52 | struct usb_ehci_pdata *pdata = dev_get_platdata(&pdev->dev); |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 53 | struct ehci_hcd *ehci = hcd_to_ehci(hcd); |
| 54 | int retval; |
| 55 | |
| 56 | hcd->has_tt = pdata->has_tt; |
| 57 | ehci->has_synopsys_hc_bug = pdata->has_synopsys_hc_bug; |
Hans de Goede | ad3db5d | 2014-02-07 16:36:43 +0100 | [diff] [blame^] | 58 | if (pdata->big_endian_desc) |
| 59 | ehci->big_endian_desc = 1; |
| 60 | if (pdata->big_endian_mmio) |
| 61 | ehci->big_endian_mmio = 1; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 62 | |
Sergei Shtylyov | 743fcce | 2013-06-02 01:33:56 +0400 | [diff] [blame] | 63 | if (pdata->pre_setup) { |
| 64 | retval = pdata->pre_setup(hcd); |
| 65 | if (retval < 0) |
| 66 | return retval; |
| 67 | } |
| 68 | |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 69 | ehci->caps = hcd->regs + pdata->caps_offset; |
| 70 | retval = ehci_setup(hcd); |
| 71 | if (retval) |
| 72 | return retval; |
| 73 | |
Florian Fainelli | 4534874 | 2012-10-08 15:11:21 +0200 | [diff] [blame] | 74 | if (pdata->no_io_watchdog) |
| 75 | ehci->need_io_watchdog = 0; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 76 | return 0; |
| 77 | } |
| 78 | |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 79 | static int ehci_platform_power_on(struct platform_device *dev) |
| 80 | { |
| 81 | struct usb_hcd *hcd = platform_get_drvdata(dev); |
| 82 | struct ehci_platform_priv *priv = hcd_to_ehci_priv(hcd); |
| 83 | int clk, ret; |
| 84 | |
| 85 | for (clk = 0; clk < EHCI_MAX_CLKS && priv->clks[clk]; clk++) { |
| 86 | ret = clk_prepare_enable(priv->clks[clk]); |
| 87 | if (ret) |
| 88 | goto err_disable_clks; |
| 89 | } |
| 90 | |
| 91 | if (priv->phy) { |
| 92 | ret = phy_init(priv->phy); |
| 93 | if (ret) |
| 94 | goto err_disable_clks; |
| 95 | |
| 96 | ret = phy_power_on(priv->phy); |
| 97 | if (ret) |
| 98 | goto err_exit_phy; |
| 99 | } |
| 100 | |
| 101 | return 0; |
| 102 | |
| 103 | err_exit_phy: |
| 104 | phy_exit(priv->phy); |
| 105 | err_disable_clks: |
| 106 | while (--clk >= 0) |
| 107 | clk_disable_unprepare(priv->clks[clk]); |
| 108 | |
| 109 | return ret; |
| 110 | } |
| 111 | |
| 112 | static void ehci_platform_power_off(struct platform_device *dev) |
| 113 | { |
| 114 | struct usb_hcd *hcd = platform_get_drvdata(dev); |
| 115 | struct ehci_platform_priv *priv = hcd_to_ehci_priv(hcd); |
| 116 | int clk; |
| 117 | |
| 118 | if (priv->phy) { |
| 119 | phy_power_off(priv->phy); |
| 120 | phy_exit(priv->phy); |
| 121 | } |
| 122 | |
| 123 | for (clk = EHCI_MAX_CLKS - 1; clk >= 0; clk--) |
| 124 | if (priv->clks[clk]) |
| 125 | clk_disable_unprepare(priv->clks[clk]); |
| 126 | } |
| 127 | |
Alan Stern | 99f9193 | 2012-11-01 11:13:08 -0400 | [diff] [blame] | 128 | static struct hc_driver __read_mostly ehci_platform_hc_driver; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 129 | |
Andi Kleen | 62d08a1 | 2013-04-22 09:44:56 -0700 | [diff] [blame] | 130 | static const struct ehci_driver_overrides platform_overrides __initconst = { |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 131 | .reset = ehci_platform_reset, |
| 132 | .extra_priv_size = sizeof(struct ehci_platform_priv), |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 133 | }; |
| 134 | |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 135 | static struct usb_ehci_pdata ehci_platform_defaults = { |
| 136 | .power_on = ehci_platform_power_on, |
| 137 | .power_suspend = ehci_platform_power_off, |
| 138 | .power_off = ehci_platform_power_off, |
| 139 | }; |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 140 | |
Bill Pemberton | 41ac7b3 | 2012-11-19 13:21:48 -0500 | [diff] [blame] | 141 | static int ehci_platform_probe(struct platform_device *dev) |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 142 | { |
| 143 | struct usb_hcd *hcd; |
| 144 | struct resource *res_mem; |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 145 | struct usb_ehci_pdata *pdata = dev_get_platdata(&dev->dev); |
| 146 | struct ehci_platform_priv *priv; |
Hans de Goede | ad3db5d | 2014-02-07 16:36:43 +0100 | [diff] [blame^] | 147 | struct ehci_hcd *ehci; |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 148 | int err, irq, clk = 0; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 149 | |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 150 | if (usb_disabled()) |
| 151 | return -ENODEV; |
| 152 | |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 153 | /* |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 154 | * Use reasonable defaults so platforms don't have to provide these |
| 155 | * with DT probing on ARM. |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 156 | */ |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 157 | if (!pdata) |
| 158 | pdata = &ehci_platform_defaults; |
Russell King | e1fd734 | 2013-06-27 12:36:37 +0100 | [diff] [blame] | 159 | |
| 160 | err = dma_coerce_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32)); |
Russell King | 22d9d8e | 2013-06-10 16:28:49 +0100 | [diff] [blame] | 161 | if (err) |
| 162 | return err; |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 163 | |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 164 | irq = platform_get_irq(dev, 0); |
| 165 | if (irq < 0) { |
Florian Fainelli | 2350cb0 | 2012-10-08 15:11:41 +0200 | [diff] [blame] | 166 | dev_err(&dev->dev, "no irq provided"); |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 167 | return irq; |
| 168 | } |
| 169 | res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0); |
| 170 | if (!res_mem) { |
Florian Fainelli | 5c9b2b2 | 2012-10-08 15:11:43 +0200 | [diff] [blame] | 171 | dev_err(&dev->dev, "no memory resource provided"); |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 172 | return -ENXIO; |
| 173 | } |
| 174 | |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 175 | hcd = usb_create_hcd(&ehci_platform_hc_driver, &dev->dev, |
| 176 | dev_name(&dev->dev)); |
| 177 | if (!hcd) |
| 178 | return -ENOMEM; |
| 179 | |
| 180 | platform_set_drvdata(dev, hcd); |
| 181 | dev->dev.platform_data = pdata; |
| 182 | priv = hcd_to_ehci_priv(hcd); |
Hans de Goede | ad3db5d | 2014-02-07 16:36:43 +0100 | [diff] [blame^] | 183 | ehci = hcd_to_ehci(hcd); |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 184 | |
| 185 | if (pdata == &ehci_platform_defaults && dev->dev.of_node) { |
Hans de Goede | ad3db5d | 2014-02-07 16:36:43 +0100 | [diff] [blame^] | 186 | if (of_property_read_bool(dev->dev.of_node, "big-endian-regs")) |
| 187 | ehci->big_endian_mmio = 1; |
| 188 | |
| 189 | if (of_property_read_bool(dev->dev.of_node, "big-endian-desc")) |
| 190 | ehci->big_endian_desc = 1; |
| 191 | |
| 192 | if (of_property_read_bool(dev->dev.of_node, "big-endian")) |
| 193 | ehci->big_endian_mmio = ehci->big_endian_desc = 1; |
| 194 | |
| 195 | #ifndef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO |
| 196 | if (ehci->big_endian_mmio) { |
| 197 | dev_err(&dev->dev, |
| 198 | "Error big-endian-regs not compiled in\n"); |
| 199 | err = -EINVAL; |
| 200 | goto err_put_hcd; |
| 201 | } |
| 202 | #endif |
| 203 | #ifndef CONFIG_USB_EHCI_BIG_ENDIAN_DESC |
| 204 | if (ehci->big_endian_desc) { |
| 205 | dev_err(&dev->dev, |
| 206 | "Error big-endian-desc not compiled in\n"); |
| 207 | err = -EINVAL; |
| 208 | goto err_put_hcd; |
| 209 | } |
| 210 | #endif |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 211 | priv->phy = devm_phy_get(&dev->dev, "usb"); |
| 212 | if (IS_ERR(priv->phy)) { |
| 213 | err = PTR_ERR(priv->phy); |
| 214 | if (err == -EPROBE_DEFER) |
| 215 | goto err_put_hcd; |
| 216 | priv->phy = NULL; |
| 217 | } |
| 218 | |
| 219 | for (clk = 0; clk < EHCI_MAX_CLKS; clk++) { |
| 220 | priv->clks[clk] = of_clk_get(dev->dev.of_node, clk); |
| 221 | if (IS_ERR(priv->clks[clk])) { |
| 222 | err = PTR_ERR(priv->clks[clk]); |
| 223 | if (err == -EPROBE_DEFER) |
| 224 | goto err_put_clks; |
| 225 | priv->clks[clk] = NULL; |
| 226 | break; |
| 227 | } |
| 228 | } |
| 229 | } |
| 230 | |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 231 | if (pdata->power_on) { |
| 232 | err = pdata->power_on(dev); |
| 233 | if (err < 0) |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 234 | goto err_put_clks; |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 235 | } |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 236 | |
| 237 | hcd->rsrc_start = res_mem->start; |
| 238 | hcd->rsrc_len = resource_size(res_mem); |
| 239 | |
Thierry Reding | 148e113 | 2013-01-21 11:09:22 +0100 | [diff] [blame] | 240 | hcd->regs = devm_ioremap_resource(&dev->dev, res_mem); |
| 241 | if (IS_ERR(hcd->regs)) { |
| 242 | err = PTR_ERR(hcd->regs); |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 243 | goto err_power; |
Julia Lawall | ec03ad8 | 2012-08-14 08:47:38 +0200 | [diff] [blame] | 244 | } |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 245 | err = usb_add_hcd(hcd, irq, IRQF_SHARED); |
| 246 | if (err) |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 247 | goto err_power; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 248 | |
Peter Chen | 3c9740a | 2013-11-05 10:46:02 +0800 | [diff] [blame] | 249 | device_wakeup_enable(hcd->self.controller); |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 250 | platform_set_drvdata(dev, hcd); |
| 251 | |
| 252 | return err; |
| 253 | |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 254 | err_power: |
| 255 | if (pdata->power_off) |
| 256 | pdata->power_off(dev); |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 257 | err_put_clks: |
| 258 | while (--clk >= 0) |
| 259 | clk_put(priv->clks[clk]); |
| 260 | err_put_hcd: |
| 261 | if (pdata == &ehci_platform_defaults) |
| 262 | dev->dev.platform_data = NULL; |
| 263 | |
| 264 | usb_put_hcd(hcd); |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 265 | |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 266 | return err; |
| 267 | } |
| 268 | |
Bill Pemberton | fb4e98a | 2012-11-19 13:26:20 -0500 | [diff] [blame] | 269 | static int ehci_platform_remove(struct platform_device *dev) |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 270 | { |
| 271 | struct usb_hcd *hcd = platform_get_drvdata(dev); |
Jingoo Han | d4f09e2 | 2013-07-30 19:59:40 +0900 | [diff] [blame] | 272 | struct usb_ehci_pdata *pdata = dev_get_platdata(&dev->dev); |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 273 | struct ehci_platform_priv *priv = hcd_to_ehci_priv(hcd); |
| 274 | int clk; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 275 | |
| 276 | usb_remove_hcd(hcd); |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 277 | |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 278 | if (pdata->power_off) |
| 279 | pdata->power_off(dev); |
| 280 | |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 281 | for (clk = 0; clk < EHCI_MAX_CLKS && priv->clks[clk]; clk++) |
| 282 | clk_put(priv->clks[clk]); |
| 283 | |
| 284 | usb_put_hcd(hcd); |
| 285 | |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 286 | if (pdata == &ehci_platform_defaults) |
| 287 | dev->dev.platform_data = NULL; |
| 288 | |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 289 | return 0; |
| 290 | } |
| 291 | |
| 292 | #ifdef CONFIG_PM |
| 293 | |
| 294 | static int ehci_platform_suspend(struct device *dev) |
| 295 | { |
| 296 | struct usb_hcd *hcd = dev_get_drvdata(dev); |
Jingoo Han | d4f09e2 | 2013-07-30 19:59:40 +0900 | [diff] [blame] | 297 | struct usb_ehci_pdata *pdata = dev_get_platdata(dev); |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 298 | struct platform_device *pdev = |
| 299 | container_of(dev, struct platform_device, dev); |
Alan Stern | c5cf921 | 2012-06-28 11:19:02 -0400 | [diff] [blame] | 300 | bool do_wakeup = device_may_wakeup(dev); |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 301 | int ret; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 302 | |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 303 | ret = ehci_suspend(hcd, do_wakeup); |
| 304 | |
| 305 | if (pdata->power_suspend) |
| 306 | pdata->power_suspend(pdev); |
| 307 | |
| 308 | return ret; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 309 | } |
| 310 | |
| 311 | static int ehci_platform_resume(struct device *dev) |
| 312 | { |
| 313 | struct usb_hcd *hcd = dev_get_drvdata(dev); |
Jingoo Han | d4f09e2 | 2013-07-30 19:59:40 +0900 | [diff] [blame] | 314 | struct usb_ehci_pdata *pdata = dev_get_platdata(dev); |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 315 | struct platform_device *pdev = |
| 316 | container_of(dev, struct platform_device, dev); |
| 317 | |
| 318 | if (pdata->power_on) { |
| 319 | int err = pdata->power_on(pdev); |
| 320 | if (err < 0) |
| 321 | return err; |
| 322 | } |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 323 | |
Alan Stern | c5cf921 | 2012-06-28 11:19:02 -0400 | [diff] [blame] | 324 | ehci_resume(hcd, false); |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 325 | return 0; |
| 326 | } |
| 327 | |
| 328 | #else /* !CONFIG_PM */ |
| 329 | #define ehci_platform_suspend NULL |
| 330 | #define ehci_platform_resume NULL |
| 331 | #endif /* CONFIG_PM */ |
| 332 | |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 333 | static const struct of_device_id vt8500_ehci_ids[] = { |
| 334 | { .compatible = "via,vt8500-ehci", }, |
| 335 | { .compatible = "wm,prizm-ehci", }, |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 336 | { .compatible = "usb-ehci", }, |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 337 | {} |
| 338 | }; |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 339 | MODULE_DEVICE_TABLE(of, vt8500_ehci_ids); |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 340 | |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 341 | static const struct platform_device_id ehci_platform_table[] = { |
| 342 | { "ehci-platform", 0 }, |
| 343 | { } |
| 344 | }; |
| 345 | MODULE_DEVICE_TABLE(platform, ehci_platform_table); |
| 346 | |
| 347 | static const struct dev_pm_ops ehci_platform_pm_ops = { |
| 348 | .suspend = ehci_platform_suspend, |
| 349 | .resume = ehci_platform_resume, |
| 350 | }; |
| 351 | |
| 352 | static struct platform_driver ehci_platform_driver = { |
| 353 | .id_table = ehci_platform_table, |
| 354 | .probe = ehci_platform_probe, |
Bill Pemberton | 7690417 | 2012-11-19 13:21:08 -0500 | [diff] [blame] | 355 | .remove = ehci_platform_remove, |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 356 | .shutdown = usb_hcd_platform_shutdown, |
| 357 | .driver = { |
| 358 | .owner = THIS_MODULE, |
| 359 | .name = "ehci-platform", |
| 360 | .pm = &ehci_platform_pm_ops, |
Sachin Kamat | ae5e5f7 | 2013-05-21 17:17:16 +0530 | [diff] [blame] | 361 | .of_match_table = vt8500_ehci_ids, |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 362 | } |
| 363 | }; |
Alan Stern | 99f9193 | 2012-11-01 11:13:08 -0400 | [diff] [blame] | 364 | |
| 365 | static int __init ehci_platform_init(void) |
| 366 | { |
| 367 | if (usb_disabled()) |
| 368 | return -ENODEV; |
| 369 | |
| 370 | pr_info("%s: " DRIVER_DESC "\n", hcd_name); |
| 371 | |
| 372 | ehci_init_driver(&ehci_platform_hc_driver, &platform_overrides); |
| 373 | return platform_driver_register(&ehci_platform_driver); |
| 374 | } |
| 375 | module_init(ehci_platform_init); |
| 376 | |
| 377 | static void __exit ehci_platform_cleanup(void) |
| 378 | { |
| 379 | platform_driver_unregister(&ehci_platform_driver); |
| 380 | } |
| 381 | module_exit(ehci_platform_cleanup); |
| 382 | |
| 383 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 384 | MODULE_AUTHOR("Hauke Mehrtens"); |
| 385 | MODULE_AUTHOR("Alan Stern"); |
| 386 | MODULE_LICENSE("GPL"); |