Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 1 | /* |
| 2 | * xhci-plat.c - xHCI host controller driver platform Bus Glue. |
| 3 | * |
| 4 | * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com |
| 5 | * Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
| 6 | * |
| 7 | * A lot of code borrowed from the Linux xHCI driver. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU General Public License |
| 11 | * version 2 as published by the Free Software Foundation. |
| 12 | */ |
| 13 | |
Gregory CLEMENT | 4718c17 | 2014-05-15 12:17:32 +0200 | [diff] [blame] | 14 | #include <linux/clk.h> |
Xenia Ragiadakou | c10cf11 | 2013-08-14 05:55:19 +0300 | [diff] [blame] | 15 | #include <linux/dma-mapping.h> |
Gregory CLEMENT | 48157bb | 2014-05-15 12:17:31 +0200 | [diff] [blame] | 16 | #include <linux/module.h> |
| 17 | #include <linux/of.h> |
| 18 | #include <linux/platform_device.h> |
Maxime Ripard | 7b8ef22 | 2015-03-17 18:32:22 +0200 | [diff] [blame] | 19 | #include <linux/usb/phy.h> |
Gregory CLEMENT | 48157bb | 2014-05-15 12:17:31 +0200 | [diff] [blame] | 20 | #include <linux/slab.h> |
Pratyush Anand | 20f6fdd | 2014-07-04 17:01:25 +0300 | [diff] [blame] | 21 | #include <linux/usb/xhci_pdriver.h> |
Duc Dang | 579085b | 2015-10-09 13:30:12 +0300 | [diff] [blame] | 22 | #include <linux/acpi.h> |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 23 | |
| 24 | #include "xhci.h" |
Yoshihiro Shimoda | 4efb2f6 | 2015-11-24 13:09:49 +0200 | [diff] [blame] | 25 | #include "xhci-plat.h" |
Gregory CLEMENT | 9737479 | 2014-05-15 12:17:33 +0200 | [diff] [blame] | 26 | #include "xhci-mvebu.h" |
Yoshihiro Shimoda | 4ac8918 | 2014-07-09 10:08:52 +0900 | [diff] [blame] | 27 | #include "xhci-rcar.h" |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 28 | |
Andrew Bresticker | 1885d9a | 2014-10-03 11:35:26 +0300 | [diff] [blame] | 29 | static struct hc_driver __read_mostly xhci_plat_hc_driver; |
| 30 | |
Roger Quadros | cd33a32 | 2015-05-29 17:01:46 +0300 | [diff] [blame] | 31 | static int xhci_plat_setup(struct usb_hcd *hcd); |
| 32 | static int xhci_plat_start(struct usb_hcd *hcd); |
| 33 | |
| 34 | static const struct xhci_driver_overrides xhci_plat_overrides __initconst = { |
Yoshihiro Shimoda | 4efb2f6 | 2015-11-24 13:09:49 +0200 | [diff] [blame] | 35 | .extra_priv_size = sizeof(struct xhci_plat_priv), |
Roger Quadros | cd33a32 | 2015-05-29 17:01:46 +0300 | [diff] [blame] | 36 | .reset = xhci_plat_setup, |
| 37 | .start = xhci_plat_start, |
| 38 | }; |
| 39 | |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 40 | static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci) |
| 41 | { |
Yoshihiro Shimoda | 5ad3b03 | 2016-04-08 16:25:08 +0300 | [diff] [blame] | 42 | struct usb_hcd *hcd = xhci_to_hcd(xhci); |
| 43 | |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 44 | /* |
| 45 | * As of now platform drivers don't provide MSI support so we ensure |
| 46 | * here that the generic code does not try to make a pci_dev from our |
| 47 | * dev struct in order to setup MSI |
| 48 | */ |
Sarah Sharp | 52fb612 | 2013-08-08 10:08:34 -0700 | [diff] [blame] | 49 | xhci->quirks |= XHCI_PLAT; |
Yoshihiro Shimoda | 5ad3b03 | 2016-04-08 16:25:08 +0300 | [diff] [blame] | 50 | |
| 51 | /* |
| 52 | * On R-Car Gen2 and Gen3, the AC64 bit (bit 0) of HCCPARAMS1 is set |
| 53 | * to 1. However, these SoCs don't support 64-bit address memory |
| 54 | * pointers. So, this driver clears the AC64 bit of xhci->hcc_params |
| 55 | * to call dma_set_coherent_mask(dev, DMA_BIT_MASK(32)) in |
| 56 | * xhci_gen_setup(). |
| 57 | */ |
| 58 | if (xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_RENESAS_RCAR_GEN2) || |
| 59 | xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_RENESAS_RCAR_GEN3)) |
| 60 | xhci->quirks |= XHCI_NO_64BIT_SUPPORT; |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 61 | } |
| 62 | |
| 63 | /* called during probe() after chip reset completes */ |
| 64 | static int xhci_plat_setup(struct usb_hcd *hcd) |
| 65 | { |
Yoshihiro Shimoda | 4ac8918 | 2014-07-09 10:08:52 +0900 | [diff] [blame] | 66 | int ret; |
| 67 | |
Yoshihiro Shimoda | 526a240 | 2015-11-24 13:09:53 +0200 | [diff] [blame] | 68 | if (xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_RENESAS_RCAR_GEN2) || |
| 69 | xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_RENESAS_RCAR_GEN3)) { |
Yoshihiro Shimoda | 4ac8918 | 2014-07-09 10:08:52 +0900 | [diff] [blame] | 70 | ret = xhci_rcar_init_quirk(hcd); |
| 71 | if (ret) |
| 72 | return ret; |
| 73 | } |
| 74 | |
Felipe Balbi | 3bdb263 | 2016-04-22 13:17:14 +0300 | [diff] [blame^] | 75 | if (xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_MARVELL_ARMADA)) { |
| 76 | struct platform_device *pdev; |
| 77 | |
| 78 | pdev = to_platform_device(hcd->self.controller); |
| 79 | ret = xhci_mvebu_mbus_init_quirk(pdev); |
| 80 | if (ret) |
| 81 | return ret; |
| 82 | } |
| 83 | |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 84 | return xhci_gen_setup(hcd, xhci_plat_quirks); |
| 85 | } |
| 86 | |
Yoshihiro Shimoda | 94adcdc | 2014-05-28 20:22:58 +0900 | [diff] [blame] | 87 | static int xhci_plat_start(struct usb_hcd *hcd) |
| 88 | { |
Yoshihiro Shimoda | 526a240 | 2015-11-24 13:09:53 +0200 | [diff] [blame] | 89 | if (xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_RENESAS_RCAR_GEN2) || |
| 90 | xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_RENESAS_RCAR_GEN3)) |
Yoshihiro Shimoda | 4ac8918 | 2014-07-09 10:08:52 +0900 | [diff] [blame] | 91 | xhci_rcar_start(hcd); |
| 92 | |
Yoshihiro Shimoda | 94adcdc | 2014-05-28 20:22:58 +0900 | [diff] [blame] | 93 | return xhci_run(hcd); |
| 94 | } |
| 95 | |
Yoshihiro Shimoda | 4efb2f6 | 2015-11-24 13:09:49 +0200 | [diff] [blame] | 96 | #ifdef CONFIG_OF |
| 97 | static const struct xhci_plat_priv xhci_plat_marvell_armada = { |
| 98 | .type = XHCI_PLAT_TYPE_MARVELL_ARMADA, |
| 99 | }; |
| 100 | |
| 101 | static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen2 = { |
| 102 | .type = XHCI_PLAT_TYPE_RENESAS_RCAR_GEN2, |
Yoshihiro Shimoda | 9bf9d9d | 2015-11-24 13:09:51 +0200 | [diff] [blame] | 103 | .firmware_name = XHCI_RCAR_FIRMWARE_NAME_V1, |
Yoshihiro Shimoda | 4efb2f6 | 2015-11-24 13:09:49 +0200 | [diff] [blame] | 104 | }; |
| 105 | |
Yoshihiro Shimoda | 526a240 | 2015-11-24 13:09:53 +0200 | [diff] [blame] | 106 | static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen3 = { |
| 107 | .type = XHCI_PLAT_TYPE_RENESAS_RCAR_GEN3, |
| 108 | .firmware_name = XHCI_RCAR_FIRMWARE_NAME_V2, |
| 109 | }; |
| 110 | |
Yoshihiro Shimoda | 4efb2f6 | 2015-11-24 13:09:49 +0200 | [diff] [blame] | 111 | static const struct of_device_id usb_xhci_of_match[] = { |
| 112 | { |
| 113 | .compatible = "generic-xhci", |
| 114 | }, { |
| 115 | .compatible = "xhci-platform", |
| 116 | }, { |
| 117 | .compatible = "marvell,armada-375-xhci", |
| 118 | .data = &xhci_plat_marvell_armada, |
| 119 | }, { |
| 120 | .compatible = "marvell,armada-380-xhci", |
| 121 | .data = &xhci_plat_marvell_armada, |
| 122 | }, { |
| 123 | .compatible = "renesas,xhci-r8a7790", |
| 124 | .data = &xhci_plat_renesas_rcar_gen2, |
| 125 | }, { |
| 126 | .compatible = "renesas,xhci-r8a7791", |
| 127 | .data = &xhci_plat_renesas_rcar_gen2, |
| 128 | }, { |
Yoshihiro Shimoda | 82487b7 | 2015-11-24 13:09:52 +0200 | [diff] [blame] | 129 | .compatible = "renesas,xhci-r8a7793", |
| 130 | .data = &xhci_plat_renesas_rcar_gen2, |
| 131 | }, { |
Yoshihiro Shimoda | 526a240 | 2015-11-24 13:09:53 +0200 | [diff] [blame] | 132 | .compatible = "renesas,xhci-r8a7795", |
| 133 | .data = &xhci_plat_renesas_rcar_gen3, |
| 134 | }, { |
Simon Horman | f1bbdc3 | 2016-02-18 17:55:49 +0200 | [diff] [blame] | 135 | .compatible = "renesas,rcar-gen2-xhci", |
| 136 | .data = &xhci_plat_renesas_rcar_gen2, |
| 137 | }, { |
| 138 | .compatible = "renesas,rcar-gen3-xhci", |
| 139 | .data = &xhci_plat_renesas_rcar_gen3, |
Yoshihiro Shimoda | 4efb2f6 | 2015-11-24 13:09:49 +0200 | [diff] [blame] | 140 | }, |
Julia Lawall | ff075d67 | 2016-02-18 17:55:50 +0200 | [diff] [blame] | 141 | {}, |
Yoshihiro Shimoda | 4efb2f6 | 2015-11-24 13:09:49 +0200 | [diff] [blame] | 142 | }; |
| 143 | MODULE_DEVICE_TABLE(of, usb_xhci_of_match); |
| 144 | #endif |
| 145 | |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 146 | static int xhci_plat_probe(struct platform_device *pdev) |
| 147 | { |
Pratyush Anand | 20f6fdd | 2014-07-04 17:01:25 +0300 | [diff] [blame] | 148 | struct device_node *node = pdev->dev.of_node; |
| 149 | struct usb_xhci_pdata *pdata = dev_get_platdata(&pdev->dev); |
Yoshihiro Shimoda | 4efb2f6 | 2015-11-24 13:09:49 +0200 | [diff] [blame] | 150 | const struct of_device_id *match; |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 151 | const struct hc_driver *driver; |
| 152 | struct xhci_hcd *xhci; |
| 153 | struct resource *res; |
| 154 | struct usb_hcd *hcd; |
Gregory CLEMENT | 4718c17 | 2014-05-15 12:17:32 +0200 | [diff] [blame] | 155 | struct clk *clk; |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 156 | int ret; |
| 157 | int irq; |
| 158 | |
| 159 | if (usb_disabled()) |
| 160 | return -ENODEV; |
| 161 | |
Andrew Bresticker | 1885d9a | 2014-10-03 11:35:26 +0300 | [diff] [blame] | 162 | driver = &xhci_plat_hc_driver; |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 163 | |
| 164 | irq = platform_get_irq(pdev, 0); |
| 165 | if (irq < 0) |
| 166 | return -ENODEV; |
| 167 | |
Duc Dang | 0ebbe39 | 2015-10-09 13:30:11 +0300 | [diff] [blame] | 168 | /* Try to set 64-bit DMA first */ |
| 169 | if (WARN_ON(!pdev->dev.dma_mask)) |
| 170 | /* Platform did not initialize dma_mask */ |
| 171 | ret = dma_coerce_mask_and_coherent(&pdev->dev, |
| 172 | DMA_BIT_MASK(64)); |
Xenia Ragiadakou | c10cf11 | 2013-08-14 05:55:19 +0300 | [diff] [blame] | 173 | else |
Duc Dang | 0ebbe39 | 2015-10-09 13:30:11 +0300 | [diff] [blame] | 174 | ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); |
| 175 | |
| 176 | /* If seting 64-bit DMA mask fails, fall back to 32-bit DMA mask */ |
| 177 | if (ret) { |
| 178 | ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
| 179 | if (ret) |
| 180 | return ret; |
| 181 | } |
Xenia Ragiadakou | c10cf11 | 2013-08-14 05:55:19 +0300 | [diff] [blame] | 182 | |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 183 | hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); |
| 184 | if (!hcd) |
| 185 | return -ENOMEM; |
| 186 | |
Varka Bhadram | e7020f1 | 2014-11-04 07:51:27 +0530 | [diff] [blame] | 187 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
Himangi Saraogi | fd66634 | 2014-06-20 23:11:23 +0530 | [diff] [blame] | 188 | hcd->regs = devm_ioremap_resource(&pdev->dev, res); |
| 189 | if (IS_ERR(hcd->regs)) { |
| 190 | ret = PTR_ERR(hcd->regs); |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 191 | goto put_hcd; |
| 192 | } |
| 193 | |
Varka Bhadram | e7020f1 | 2014-11-04 07:51:27 +0530 | [diff] [blame] | 194 | hcd->rsrc_start = res->start; |
| 195 | hcd->rsrc_len = resource_size(res); |
| 196 | |
Gregory CLEMENT | 4718c17 | 2014-05-15 12:17:32 +0200 | [diff] [blame] | 197 | /* |
| 198 | * Not all platforms have a clk so it is not an error if the |
| 199 | * clock does not exists. |
| 200 | */ |
| 201 | clk = devm_clk_get(&pdev->dev, NULL); |
| 202 | if (!IS_ERR(clk)) { |
| 203 | ret = clk_prepare_enable(clk); |
| 204 | if (ret) |
Himangi Saraogi | fd66634 | 2014-06-20 23:11:23 +0530 | [diff] [blame] | 205 | goto put_hcd; |
Gregory CLEMENT | 4718c17 | 2014-05-15 12:17:32 +0200 | [diff] [blame] | 206 | } |
| 207 | |
Yoshihiro Shimoda | 4efb2f6 | 2015-11-24 13:09:49 +0200 | [diff] [blame] | 208 | xhci = hcd_to_xhci(hcd); |
| 209 | match = of_match_node(usb_xhci_of_match, node); |
| 210 | if (match) { |
| 211 | const struct xhci_plat_priv *priv_match = match->data; |
| 212 | struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd); |
| 213 | |
| 214 | /* Just copy data for now */ |
Gregory CLEMENT | 2ad294d | 2016-01-26 17:50:11 +0200 | [diff] [blame] | 215 | if (priv_match) |
| 216 | *priv = *priv_match; |
Yoshihiro Shimoda | 4efb2f6 | 2015-11-24 13:09:49 +0200 | [diff] [blame] | 217 | } |
| 218 | |
Peter Chen | 3c9740a | 2013-11-05 10:46:02 +0800 | [diff] [blame] | 219 | device_wakeup_enable(hcd->self.controller); |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 220 | |
Gregory CLEMENT | 4718c17 | 2014-05-15 12:17:32 +0200 | [diff] [blame] | 221 | xhci->clk = clk; |
Roger Quadros | 9fa733f | 2015-05-29 17:01:50 +0300 | [diff] [blame] | 222 | xhci->main_hcd = hcd; |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 223 | xhci->shared_hcd = usb_create_shared_hcd(driver, &pdev->dev, |
| 224 | dev_name(&pdev->dev), hcd); |
| 225 | if (!xhci->shared_hcd) { |
| 226 | ret = -ENOMEM; |
Roger Quadros | 4ac5308 | 2015-05-29 17:01:47 +0300 | [diff] [blame] | 227 | goto disable_clk; |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 228 | } |
| 229 | |
Pratyush Anand | 20f6fdd | 2014-07-04 17:01:25 +0300 | [diff] [blame] | 230 | if ((node && of_property_read_bool(node, "usb3-lpm-capable")) || |
| 231 | (pdata && pdata->usb3_lpm_capable)) |
| 232 | xhci->quirks |= XHCI_LPM_SUPPORT; |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 233 | |
Oliver Neukum | 14aec58 | 2014-02-11 20:36:04 +0100 | [diff] [blame] | 234 | if (HCC_MAX_PSA(xhci->hcc_params) >= 4) |
| 235 | xhci->shared_hcd->can_do_streams = 1; |
| 236 | |
Maxime Ripard | 7b8ef22 | 2015-03-17 18:32:22 +0200 | [diff] [blame] | 237 | hcd->usb_phy = devm_usb_get_phy_by_phandle(&pdev->dev, "usb-phy", 0); |
| 238 | if (IS_ERR(hcd->usb_phy)) { |
| 239 | ret = PTR_ERR(hcd->usb_phy); |
| 240 | if (ret == -EPROBE_DEFER) |
| 241 | goto put_usb3_hcd; |
| 242 | hcd->usb_phy = NULL; |
| 243 | } else { |
| 244 | ret = usb_phy_init(hcd->usb_phy); |
| 245 | if (ret) |
| 246 | goto put_usb3_hcd; |
| 247 | } |
| 248 | |
Roger Quadros | 4ac5308 | 2015-05-29 17:01:47 +0300 | [diff] [blame] | 249 | ret = usb_add_hcd(hcd, irq, IRQF_SHARED); |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 250 | if (ret) |
Maxime Ripard | 7b8ef22 | 2015-03-17 18:32:22 +0200 | [diff] [blame] | 251 | goto disable_usb_phy; |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 252 | |
Roger Quadros | 4ac5308 | 2015-05-29 17:01:47 +0300 | [diff] [blame] | 253 | ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED); |
| 254 | if (ret) |
| 255 | goto dealloc_usb2_hcd; |
| 256 | |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 257 | return 0; |
| 258 | |
Roger Quadros | 4ac5308 | 2015-05-29 17:01:47 +0300 | [diff] [blame] | 259 | |
| 260 | dealloc_usb2_hcd: |
| 261 | usb_remove_hcd(hcd); |
| 262 | |
Maxime Ripard | 7b8ef22 | 2015-03-17 18:32:22 +0200 | [diff] [blame] | 263 | disable_usb_phy: |
| 264 | usb_phy_shutdown(hcd->usb_phy); |
| 265 | |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 266 | put_usb3_hcd: |
| 267 | usb_put_hcd(xhci->shared_hcd); |
| 268 | |
Gregory CLEMENT | 4718c17 | 2014-05-15 12:17:32 +0200 | [diff] [blame] | 269 | disable_clk: |
| 270 | if (!IS_ERR(clk)) |
| 271 | clk_disable_unprepare(clk); |
| 272 | |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 273 | put_hcd: |
| 274 | usb_put_hcd(hcd); |
| 275 | |
| 276 | return ret; |
| 277 | } |
| 278 | |
| 279 | static int xhci_plat_remove(struct platform_device *dev) |
| 280 | { |
| 281 | struct usb_hcd *hcd = platform_get_drvdata(dev); |
| 282 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
Gregory CLEMENT | 4718c17 | 2014-05-15 12:17:32 +0200 | [diff] [blame] | 283 | struct clk *clk = xhci->clk; |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 284 | |
| 285 | usb_remove_hcd(xhci->shared_hcd); |
Maxime Ripard | 7b8ef22 | 2015-03-17 18:32:22 +0200 | [diff] [blame] | 286 | usb_phy_shutdown(hcd->usb_phy); |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 287 | |
| 288 | usb_remove_hcd(hcd); |
Roger Quadros | 4ac5308 | 2015-05-29 17:01:47 +0300 | [diff] [blame] | 289 | usb_put_hcd(xhci->shared_hcd); |
| 290 | |
Gregory CLEMENT | 4718c17 | 2014-05-15 12:17:32 +0200 | [diff] [blame] | 291 | if (!IS_ERR(clk)) |
| 292 | clk_disable_unprepare(clk); |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 293 | usb_put_hcd(hcd); |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 294 | |
| 295 | return 0; |
| 296 | } |
| 297 | |
Arnd Bergmann | 274f6af | 2014-05-08 15:52:19 +0200 | [diff] [blame] | 298 | #ifdef CONFIG_PM_SLEEP |
Vikas Sajjan | 57d04eb | 2013-02-11 12:58:00 +0200 | [diff] [blame] | 299 | static int xhci_plat_suspend(struct device *dev) |
| 300 | { |
| 301 | struct usb_hcd *hcd = dev_get_drvdata(dev); |
| 302 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 303 | |
Lu Baolu | a1377e5 | 2014-11-18 11:27:14 +0200 | [diff] [blame] | 304 | /* |
| 305 | * xhci_suspend() needs `do_wakeup` to know whether host is allowed |
| 306 | * to do wakeup during suspend. Since xhci_plat_suspend is currently |
| 307 | * only designed for system suspend, device_may_wakeup() is enough |
| 308 | * to dertermine whether host is allowed to do wakeup. Need to |
| 309 | * reconsider this when xhci_plat_suspend enlarges its scope, e.g., |
| 310 | * also applies to runtime suspend. |
| 311 | */ |
| 312 | return xhci_suspend(xhci, device_may_wakeup(dev)); |
Vikas Sajjan | 57d04eb | 2013-02-11 12:58:00 +0200 | [diff] [blame] | 313 | } |
| 314 | |
| 315 | static int xhci_plat_resume(struct device *dev) |
| 316 | { |
| 317 | struct usb_hcd *hcd = dev_get_drvdata(dev); |
| 318 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 319 | |
| 320 | return xhci_resume(xhci, 0); |
| 321 | } |
| 322 | |
| 323 | static const struct dev_pm_ops xhci_plat_pm_ops = { |
| 324 | SET_SYSTEM_SLEEP_PM_OPS(xhci_plat_suspend, xhci_plat_resume) |
| 325 | }; |
| 326 | #define DEV_PM_OPS (&xhci_plat_pm_ops) |
| 327 | #else |
| 328 | #define DEV_PM_OPS NULL |
| 329 | #endif /* CONFIG_PM */ |
| 330 | |
Duc Dang | 579085b | 2015-10-09 13:30:12 +0300 | [diff] [blame] | 331 | static const struct acpi_device_id usb_xhci_acpi_match[] = { |
| 332 | /* XHCI-compliant USB Controller */ |
| 333 | { "PNP0D10", }, |
| 334 | { } |
| 335 | }; |
| 336 | MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_match); |
| 337 | |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 338 | static struct platform_driver usb_xhci_driver = { |
| 339 | .probe = xhci_plat_probe, |
| 340 | .remove = xhci_plat_remove, |
| 341 | .driver = { |
| 342 | .name = "xhci-hcd", |
Vikas Sajjan | 57d04eb | 2013-02-11 12:58:00 +0200 | [diff] [blame] | 343 | .pm = DEV_PM_OPS, |
Al Cooper | 1fe6c45 | 2013-07-25 19:04:44 -0400 | [diff] [blame] | 344 | .of_match_table = of_match_ptr(usb_xhci_of_match), |
Duc Dang | 579085b | 2015-10-09 13:30:12 +0300 | [diff] [blame] | 345 | .acpi_match_table = ACPI_PTR(usb_xhci_acpi_match), |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 346 | }, |
| 347 | }; |
| 348 | MODULE_ALIAS("platform:xhci-hcd"); |
| 349 | |
Andrew Bresticker | 29e409f | 2014-10-03 11:35:29 +0300 | [diff] [blame] | 350 | static int __init xhci_plat_init(void) |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 351 | { |
Roger Quadros | cd33a32 | 2015-05-29 17:01:46 +0300 | [diff] [blame] | 352 | xhci_init_driver(&xhci_plat_hc_driver, &xhci_plat_overrides); |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 353 | return platform_driver_register(&usb_xhci_driver); |
| 354 | } |
Andrew Bresticker | 29e409f | 2014-10-03 11:35:29 +0300 | [diff] [blame] | 355 | module_init(xhci_plat_init); |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 356 | |
Andrew Bresticker | 29e409f | 2014-10-03 11:35:29 +0300 | [diff] [blame] | 357 | static void __exit xhci_plat_exit(void) |
Sebastian Andrzej Siewior | 3429e91 | 2012-03-13 16:57:41 +0200 | [diff] [blame] | 358 | { |
| 359 | platform_driver_unregister(&usb_xhci_driver); |
| 360 | } |
Andrew Bresticker | 29e409f | 2014-10-03 11:35:29 +0300 | [diff] [blame] | 361 | module_exit(xhci_plat_exit); |
| 362 | |
| 363 | MODULE_DESCRIPTION("xHCI Platform Host Controller Driver"); |
| 364 | MODULE_LICENSE("GPL"); |