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; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 58 | |
Sergei Shtylyov | 743fcce | 2013-06-02 01:33:56 +0400 | [diff] [blame] | 59 | if (pdata->pre_setup) { |
| 60 | retval = pdata->pre_setup(hcd); |
| 61 | if (retval < 0) |
| 62 | return retval; |
| 63 | } |
| 64 | |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 65 | ehci->caps = hcd->regs + pdata->caps_offset; |
| 66 | retval = ehci_setup(hcd); |
| 67 | if (retval) |
| 68 | return retval; |
| 69 | |
Florian Fainelli | 4534874 | 2012-10-08 15:11:21 +0200 | [diff] [blame] | 70 | if (pdata->no_io_watchdog) |
| 71 | ehci->need_io_watchdog = 0; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 72 | return 0; |
| 73 | } |
| 74 | |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 75 | static int ehci_platform_power_on(struct platform_device *dev) |
| 76 | { |
| 77 | struct usb_hcd *hcd = platform_get_drvdata(dev); |
| 78 | struct ehci_platform_priv *priv = hcd_to_ehci_priv(hcd); |
| 79 | int clk, ret; |
| 80 | |
| 81 | for (clk = 0; clk < EHCI_MAX_CLKS && priv->clks[clk]; clk++) { |
| 82 | ret = clk_prepare_enable(priv->clks[clk]); |
| 83 | if (ret) |
| 84 | goto err_disable_clks; |
| 85 | } |
| 86 | |
| 87 | if (priv->phy) { |
| 88 | ret = phy_init(priv->phy); |
| 89 | if (ret) |
| 90 | goto err_disable_clks; |
| 91 | |
| 92 | ret = phy_power_on(priv->phy); |
| 93 | if (ret) |
| 94 | goto err_exit_phy; |
| 95 | } |
| 96 | |
| 97 | return 0; |
| 98 | |
| 99 | err_exit_phy: |
| 100 | phy_exit(priv->phy); |
| 101 | err_disable_clks: |
| 102 | while (--clk >= 0) |
| 103 | clk_disable_unprepare(priv->clks[clk]); |
| 104 | |
| 105 | return ret; |
| 106 | } |
| 107 | |
| 108 | static void ehci_platform_power_off(struct platform_device *dev) |
| 109 | { |
| 110 | struct usb_hcd *hcd = platform_get_drvdata(dev); |
| 111 | struct ehci_platform_priv *priv = hcd_to_ehci_priv(hcd); |
| 112 | int clk; |
| 113 | |
| 114 | if (priv->phy) { |
| 115 | phy_power_off(priv->phy); |
| 116 | phy_exit(priv->phy); |
| 117 | } |
| 118 | |
| 119 | for (clk = EHCI_MAX_CLKS - 1; clk >= 0; clk--) |
| 120 | if (priv->clks[clk]) |
| 121 | clk_disable_unprepare(priv->clks[clk]); |
| 122 | } |
| 123 | |
Alan Stern | 99f9193 | 2012-11-01 11:13:08 -0400 | [diff] [blame] | 124 | static struct hc_driver __read_mostly ehci_platform_hc_driver; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 125 | |
Andi Kleen | 62d08a1 | 2013-04-22 09:44:56 -0700 | [diff] [blame] | 126 | static const struct ehci_driver_overrides platform_overrides __initconst = { |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 127 | .reset = ehci_platform_reset, |
| 128 | .extra_priv_size = sizeof(struct ehci_platform_priv), |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 129 | }; |
| 130 | |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 131 | static struct usb_ehci_pdata ehci_platform_defaults = { |
| 132 | .power_on = ehci_platform_power_on, |
| 133 | .power_suspend = ehci_platform_power_off, |
| 134 | .power_off = ehci_platform_power_off, |
| 135 | }; |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 136 | |
Bill Pemberton | 41ac7b3 | 2012-11-19 13:21:48 -0500 | [diff] [blame] | 137 | static int ehci_platform_probe(struct platform_device *dev) |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 138 | { |
| 139 | struct usb_hcd *hcd; |
| 140 | struct resource *res_mem; |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 141 | struct usb_ehci_pdata *pdata = dev_get_platdata(&dev->dev); |
| 142 | struct ehci_platform_priv *priv; |
Hans de Goede | ad3db5d | 2014-02-07 16:36:43 +0100 | [diff] [blame] | 143 | struct ehci_hcd *ehci; |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 144 | int err, irq, clk = 0; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 145 | |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 146 | if (usb_disabled()) |
| 147 | return -ENODEV; |
| 148 | |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 149 | /* |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 150 | * Use reasonable defaults so platforms don't have to provide these |
| 151 | * with DT probing on ARM. |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 152 | */ |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 153 | if (!pdata) |
| 154 | pdata = &ehci_platform_defaults; |
Russell King | e1fd734 | 2013-06-27 12:36:37 +0100 | [diff] [blame] | 155 | |
| 156 | err = dma_coerce_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32)); |
Russell King | 22d9d8e | 2013-06-10 16:28:49 +0100 | [diff] [blame] | 157 | if (err) |
| 158 | return err; |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 159 | |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 160 | irq = platform_get_irq(dev, 0); |
| 161 | if (irq < 0) { |
Florian Fainelli | 2350cb0 | 2012-10-08 15:11:41 +0200 | [diff] [blame] | 162 | dev_err(&dev->dev, "no irq provided"); |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 163 | return irq; |
| 164 | } |
| 165 | res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0); |
| 166 | if (!res_mem) { |
Florian Fainelli | 5c9b2b2 | 2012-10-08 15:11:43 +0200 | [diff] [blame] | 167 | dev_err(&dev->dev, "no memory resource provided"); |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 168 | return -ENXIO; |
| 169 | } |
| 170 | |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 171 | hcd = usb_create_hcd(&ehci_platform_hc_driver, &dev->dev, |
| 172 | dev_name(&dev->dev)); |
| 173 | if (!hcd) |
| 174 | return -ENOMEM; |
| 175 | |
| 176 | platform_set_drvdata(dev, hcd); |
| 177 | dev->dev.platform_data = pdata; |
| 178 | priv = hcd_to_ehci_priv(hcd); |
Hans de Goede | ad3db5d | 2014-02-07 16:36:43 +0100 | [diff] [blame] | 179 | ehci = hcd_to_ehci(hcd); |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 180 | |
| 181 | if (pdata == &ehci_platform_defaults && dev->dev.of_node) { |
Hans de Goede | ad3db5d | 2014-02-07 16:36:43 +0100 | [diff] [blame] | 182 | if (of_property_read_bool(dev->dev.of_node, "big-endian-regs")) |
| 183 | ehci->big_endian_mmio = 1; |
| 184 | |
| 185 | if (of_property_read_bool(dev->dev.of_node, "big-endian-desc")) |
| 186 | ehci->big_endian_desc = 1; |
| 187 | |
| 188 | if (of_property_read_bool(dev->dev.of_node, "big-endian")) |
| 189 | ehci->big_endian_mmio = ehci->big_endian_desc = 1; |
| 190 | |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 191 | priv->phy = devm_phy_get(&dev->dev, "usb"); |
| 192 | if (IS_ERR(priv->phy)) { |
| 193 | err = PTR_ERR(priv->phy); |
| 194 | if (err == -EPROBE_DEFER) |
| 195 | goto err_put_hcd; |
| 196 | priv->phy = NULL; |
| 197 | } |
| 198 | |
| 199 | for (clk = 0; clk < EHCI_MAX_CLKS; clk++) { |
| 200 | priv->clks[clk] = of_clk_get(dev->dev.of_node, clk); |
| 201 | if (IS_ERR(priv->clks[clk])) { |
| 202 | err = PTR_ERR(priv->clks[clk]); |
| 203 | if (err == -EPROBE_DEFER) |
| 204 | goto err_put_clks; |
| 205 | priv->clks[clk] = NULL; |
| 206 | break; |
| 207 | } |
| 208 | } |
| 209 | } |
| 210 | |
Alan Stern | 843d5e0 | 2014-02-11 11:26:10 -0500 | [diff] [blame] | 211 | if (pdata->big_endian_desc) |
| 212 | ehci->big_endian_desc = 1; |
| 213 | if (pdata->big_endian_mmio) |
| 214 | ehci->big_endian_mmio = 1; |
| 215 | |
| 216 | #ifndef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO |
| 217 | if (ehci->big_endian_mmio) { |
| 218 | dev_err(&dev->dev, |
| 219 | "Error: CONFIG_USB_EHCI_BIG_ENDIAN_MMIO not set\n"); |
| 220 | err = -EINVAL; |
| 221 | goto err_put_clks; |
| 222 | } |
| 223 | #endif |
| 224 | #ifndef CONFIG_USB_EHCI_BIG_ENDIAN_DESC |
| 225 | if (ehci->big_endian_desc) { |
| 226 | dev_err(&dev->dev, |
| 227 | "Error: CONFIG_USB_EHCI_BIG_ENDIAN_DESC not set\n"); |
| 228 | err = -EINVAL; |
| 229 | goto err_put_clks; |
| 230 | } |
| 231 | #endif |
| 232 | |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 233 | if (pdata->power_on) { |
| 234 | err = pdata->power_on(dev); |
| 235 | if (err < 0) |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 236 | goto err_put_clks; |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 237 | } |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 238 | |
| 239 | hcd->rsrc_start = res_mem->start; |
| 240 | hcd->rsrc_len = resource_size(res_mem); |
| 241 | |
Thierry Reding | 148e113 | 2013-01-21 11:09:22 +0100 | [diff] [blame] | 242 | hcd->regs = devm_ioremap_resource(&dev->dev, res_mem); |
| 243 | if (IS_ERR(hcd->regs)) { |
| 244 | err = PTR_ERR(hcd->regs); |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 245 | goto err_power; |
Julia Lawall | ec03ad8 | 2012-08-14 08:47:38 +0200 | [diff] [blame] | 246 | } |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 247 | err = usb_add_hcd(hcd, irq, IRQF_SHARED); |
| 248 | if (err) |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 249 | goto err_power; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 250 | |
Peter Chen | 3c9740a | 2013-11-05 10:46:02 +0800 | [diff] [blame] | 251 | device_wakeup_enable(hcd->self.controller); |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 252 | platform_set_drvdata(dev, hcd); |
| 253 | |
| 254 | return err; |
| 255 | |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 256 | err_power: |
| 257 | if (pdata->power_off) |
| 258 | pdata->power_off(dev); |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 259 | err_put_clks: |
| 260 | while (--clk >= 0) |
| 261 | clk_put(priv->clks[clk]); |
| 262 | err_put_hcd: |
| 263 | if (pdata == &ehci_platform_defaults) |
| 264 | dev->dev.platform_data = NULL; |
| 265 | |
| 266 | usb_put_hcd(hcd); |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 267 | |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 268 | return err; |
| 269 | } |
| 270 | |
Bill Pemberton | fb4e98a | 2012-11-19 13:26:20 -0500 | [diff] [blame] | 271 | static int ehci_platform_remove(struct platform_device *dev) |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 272 | { |
| 273 | struct usb_hcd *hcd = platform_get_drvdata(dev); |
Jingoo Han | d4f09e2 | 2013-07-30 19:59:40 +0900 | [diff] [blame] | 274 | struct usb_ehci_pdata *pdata = dev_get_platdata(&dev->dev); |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 275 | struct ehci_platform_priv *priv = hcd_to_ehci_priv(hcd); |
| 276 | int clk; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 277 | |
| 278 | usb_remove_hcd(hcd); |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 279 | |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 280 | if (pdata->power_off) |
| 281 | pdata->power_off(dev); |
| 282 | |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 283 | for (clk = 0; clk < EHCI_MAX_CLKS && priv->clks[clk]; clk++) |
| 284 | clk_put(priv->clks[clk]); |
| 285 | |
| 286 | usb_put_hcd(hcd); |
| 287 | |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 288 | if (pdata == &ehci_platform_defaults) |
| 289 | dev->dev.platform_data = NULL; |
| 290 | |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 291 | return 0; |
| 292 | } |
| 293 | |
| 294 | #ifdef CONFIG_PM |
| 295 | |
| 296 | static int ehci_platform_suspend(struct device *dev) |
| 297 | { |
| 298 | struct usb_hcd *hcd = dev_get_drvdata(dev); |
Jingoo Han | d4f09e2 | 2013-07-30 19:59:40 +0900 | [diff] [blame] | 299 | struct usb_ehci_pdata *pdata = dev_get_platdata(dev); |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 300 | struct platform_device *pdev = |
| 301 | container_of(dev, struct platform_device, dev); |
Alan Stern | c5cf921 | 2012-06-28 11:19:02 -0400 | [diff] [blame] | 302 | bool do_wakeup = device_may_wakeup(dev); |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 303 | int ret; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 304 | |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 305 | ret = ehci_suspend(hcd, do_wakeup); |
Vivek Gautam | e155b5b | 2014-04-10 15:58:02 +0530 | [diff] [blame^] | 306 | if (ret) |
| 307 | return ret; |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 308 | |
| 309 | if (pdata->power_suspend) |
| 310 | pdata->power_suspend(pdev); |
| 311 | |
| 312 | return ret; |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 313 | } |
| 314 | |
| 315 | static int ehci_platform_resume(struct device *dev) |
| 316 | { |
| 317 | struct usb_hcd *hcd = dev_get_drvdata(dev); |
Jingoo Han | d4f09e2 | 2013-07-30 19:59:40 +0900 | [diff] [blame] | 318 | struct usb_ehci_pdata *pdata = dev_get_platdata(dev); |
Kuninori Morimoto | 04216be | 2012-08-06 18:08:39 -0700 | [diff] [blame] | 319 | struct platform_device *pdev = |
| 320 | container_of(dev, struct platform_device, dev); |
| 321 | |
| 322 | if (pdata->power_on) { |
| 323 | int err = pdata->power_on(pdev); |
| 324 | if (err < 0) |
| 325 | return err; |
| 326 | } |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 327 | |
Alan Stern | c5cf921 | 2012-06-28 11:19:02 -0400 | [diff] [blame] | 328 | ehci_resume(hcd, false); |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 329 | return 0; |
| 330 | } |
| 331 | |
| 332 | #else /* !CONFIG_PM */ |
| 333 | #define ehci_platform_suspend NULL |
| 334 | #define ehci_platform_resume NULL |
| 335 | #endif /* CONFIG_PM */ |
| 336 | |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 337 | static const struct of_device_id vt8500_ehci_ids[] = { |
| 338 | { .compatible = "via,vt8500-ehci", }, |
| 339 | { .compatible = "wm,prizm-ehci", }, |
Hans de Goede | 915974c | 2014-02-11 17:35:29 +0100 | [diff] [blame] | 340 | { .compatible = "generic-ehci", }, |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 341 | {} |
| 342 | }; |
Hans de Goede | a4aeb21 | 2014-02-07 16:36:41 +0100 | [diff] [blame] | 343 | MODULE_DEVICE_TABLE(of, vt8500_ehci_ids); |
Arnd Bergmann | f3bc64d | 2013-03-27 21:44:22 +0000 | [diff] [blame] | 344 | |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 345 | static const struct platform_device_id ehci_platform_table[] = { |
| 346 | { "ehci-platform", 0 }, |
| 347 | { } |
| 348 | }; |
| 349 | MODULE_DEVICE_TABLE(platform, ehci_platform_table); |
| 350 | |
| 351 | static const struct dev_pm_ops ehci_platform_pm_ops = { |
| 352 | .suspend = ehci_platform_suspend, |
| 353 | .resume = ehci_platform_resume, |
| 354 | }; |
| 355 | |
| 356 | static struct platform_driver ehci_platform_driver = { |
| 357 | .id_table = ehci_platform_table, |
| 358 | .probe = ehci_platform_probe, |
Bill Pemberton | 7690417 | 2012-11-19 13:21:08 -0500 | [diff] [blame] | 359 | .remove = ehci_platform_remove, |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 360 | .shutdown = usb_hcd_platform_shutdown, |
| 361 | .driver = { |
| 362 | .owner = THIS_MODULE, |
| 363 | .name = "ehci-platform", |
| 364 | .pm = &ehci_platform_pm_ops, |
Sachin Kamat | ae5e5f7 | 2013-05-21 17:17:16 +0530 | [diff] [blame] | 365 | .of_match_table = vt8500_ehci_ids, |
Hauke Mehrtens | 7a7a4a59 | 2012-03-13 01:04:48 +0100 | [diff] [blame] | 366 | } |
| 367 | }; |
Alan Stern | 99f9193 | 2012-11-01 11:13:08 -0400 | [diff] [blame] | 368 | |
| 369 | static int __init ehci_platform_init(void) |
| 370 | { |
| 371 | if (usb_disabled()) |
| 372 | return -ENODEV; |
| 373 | |
| 374 | pr_info("%s: " DRIVER_DESC "\n", hcd_name); |
| 375 | |
| 376 | ehci_init_driver(&ehci_platform_hc_driver, &platform_overrides); |
| 377 | return platform_driver_register(&ehci_platform_driver); |
| 378 | } |
| 379 | module_init(ehci_platform_init); |
| 380 | |
| 381 | static void __exit ehci_platform_cleanup(void) |
| 382 | { |
| 383 | platform_driver_unregister(&ehci_platform_driver); |
| 384 | } |
| 385 | module_exit(ehci_platform_cleanup); |
| 386 | |
| 387 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 388 | MODULE_AUTHOR("Hauke Mehrtens"); |
| 389 | MODULE_AUTHOR("Alan Stern"); |
| 390 | MODULE_LICENSE("GPL"); |