Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 1 | /** |
| 2 | * dwc3-exynos.c - Samsung EXYNOS DWC3 Specific Glue layer |
| 3 | * |
| 4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. |
| 5 | * http://www.samsung.com |
| 6 | * |
| 7 | * Author: Anton Tikhomirov <av.tikhomirov@samsung.com> |
| 8 | * |
Felipe Balbi | 5945f78 | 2013-06-30 14:15:11 +0300 | [diff] [blame] | 9 | * This program is free software: you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License version 2 of |
| 11 | * the License as published by the Free Software Foundation. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 17 | */ |
| 18 | |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/kernel.h> |
| 21 | #include <linux/slab.h> |
| 22 | #include <linux/platform_device.h> |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 23 | #include <linux/dma-mapping.h> |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 24 | #include <linux/clk.h> |
Felipe Balbi | d720f05 | 2012-07-19 14:01:10 +0300 | [diff] [blame] | 25 | #include <linux/usb/otg.h> |
Felipe Balbi | d7078df | 2014-04-16 15:28:32 -0500 | [diff] [blame] | 26 | #include <linux/usb/usb_phy_generic.h> |
Vivek Gautam | accefdd | 2012-11-03 18:00:27 +0530 | [diff] [blame] | 27 | #include <linux/of.h> |
Vivek Gautam | adcf20d | 2013-03-14 18:09:49 +0530 | [diff] [blame] | 28 | #include <linux/of_platform.h> |
Vivek Gautam | bd8ce54 | 2014-04-21 17:46:44 +0530 | [diff] [blame] | 29 | #include <linux/regulator/consumer.h> |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 30 | |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 31 | struct dwc3_exynos { |
Felipe Balbi | d720f05 | 2012-07-19 14:01:10 +0300 | [diff] [blame] | 32 | struct platform_device *usb2_phy; |
| 33 | struct platform_device *usb3_phy; |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 34 | struct device *dev; |
| 35 | |
| 36 | struct clk *clk; |
Vivek Gautam | 72d996f | 2014-11-21 19:05:46 +0530 | [diff] [blame] | 37 | struct clk *susp_clk; |
Vivek Gautam | ed692a9 | 2014-11-21 19:05:47 +0530 | [diff] [blame] | 38 | struct clk *axius_clk; |
Vivek Gautam | 72d996f | 2014-11-21 19:05:46 +0530 | [diff] [blame] | 39 | |
Vivek Gautam | bd8ce54 | 2014-04-21 17:46:44 +0530 | [diff] [blame] | 40 | struct regulator *vdd33; |
| 41 | struct regulator *vdd10; |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 42 | }; |
| 43 | |
Bill Pemberton | 41ac7b3 | 2012-11-19 13:21:48 -0500 | [diff] [blame] | 44 | static int dwc3_exynos_register_phys(struct dwc3_exynos *exynos) |
Felipe Balbi | d720f05 | 2012-07-19 14:01:10 +0300 | [diff] [blame] | 45 | { |
Felipe Balbi | 4525bee | 2014-04-16 15:20:44 -0500 | [diff] [blame] | 46 | struct usb_phy_generic_platform_data pdata; |
Felipe Balbi | d720f05 | 2012-07-19 14:01:10 +0300 | [diff] [blame] | 47 | struct platform_device *pdev; |
| 48 | int ret; |
| 49 | |
| 50 | memset(&pdata, 0x00, sizeof(pdata)); |
| 51 | |
Felipe Balbi | 4525bee | 2014-04-16 15:20:44 -0500 | [diff] [blame] | 52 | pdev = platform_device_alloc("usb_phy_generic", PLATFORM_DEVID_AUTO); |
Felipe Balbi | d720f05 | 2012-07-19 14:01:10 +0300 | [diff] [blame] | 53 | if (!pdev) |
| 54 | return -ENOMEM; |
| 55 | |
| 56 | exynos->usb2_phy = pdev; |
| 57 | pdata.type = USB_PHY_TYPE_USB2; |
Heikki Krogerus | 1351867 | 2013-12-18 16:41:25 +0200 | [diff] [blame] | 58 | pdata.gpio_reset = -1; |
Felipe Balbi | d720f05 | 2012-07-19 14:01:10 +0300 | [diff] [blame] | 59 | |
| 60 | ret = platform_device_add_data(exynos->usb2_phy, &pdata, sizeof(pdata)); |
| 61 | if (ret) |
| 62 | goto err1; |
| 63 | |
Felipe Balbi | 4525bee | 2014-04-16 15:20:44 -0500 | [diff] [blame] | 64 | pdev = platform_device_alloc("usb_phy_generic", PLATFORM_DEVID_AUTO); |
Felipe Balbi | d720f05 | 2012-07-19 14:01:10 +0300 | [diff] [blame] | 65 | if (!pdev) { |
| 66 | ret = -ENOMEM; |
| 67 | goto err1; |
| 68 | } |
| 69 | |
| 70 | exynos->usb3_phy = pdev; |
| 71 | pdata.type = USB_PHY_TYPE_USB3; |
| 72 | |
| 73 | ret = platform_device_add_data(exynos->usb3_phy, &pdata, sizeof(pdata)); |
| 74 | if (ret) |
| 75 | goto err2; |
| 76 | |
| 77 | ret = platform_device_add(exynos->usb2_phy); |
| 78 | if (ret) |
| 79 | goto err2; |
| 80 | |
| 81 | ret = platform_device_add(exynos->usb3_phy); |
| 82 | if (ret) |
| 83 | goto err3; |
| 84 | |
| 85 | return 0; |
| 86 | |
| 87 | err3: |
| 88 | platform_device_del(exynos->usb2_phy); |
| 89 | |
| 90 | err2: |
| 91 | platform_device_put(exynos->usb3_phy); |
| 92 | |
| 93 | err1: |
| 94 | platform_device_put(exynos->usb2_phy); |
| 95 | |
| 96 | return ret; |
| 97 | } |
| 98 | |
Vivek Gautam | adcf20d | 2013-03-14 18:09:49 +0530 | [diff] [blame] | 99 | static int dwc3_exynos_remove_child(struct device *dev, void *unused) |
| 100 | { |
| 101 | struct platform_device *pdev = to_platform_device(dev); |
| 102 | |
| 103 | platform_device_unregister(pdev); |
| 104 | |
| 105 | return 0; |
| 106 | } |
| 107 | |
Bill Pemberton | 41ac7b3 | 2012-11-19 13:21:48 -0500 | [diff] [blame] | 108 | static int dwc3_exynos_probe(struct platform_device *pdev) |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 109 | { |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 110 | struct dwc3_exynos *exynos; |
Jingoo Han | 20b97dc | 2012-11-13 11:20:49 +0900 | [diff] [blame] | 111 | struct device *dev = &pdev->dev; |
Vivek Gautam | adcf20d | 2013-03-14 18:09:49 +0530 | [diff] [blame] | 112 | struct device_node *node = dev->of_node; |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 113 | |
Andy Shevchenko | b09e99e | 2014-05-15 15:53:32 +0300 | [diff] [blame] | 114 | int ret; |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 115 | |
Jingoo Han | 20b97dc | 2012-11-13 11:20:49 +0900 | [diff] [blame] | 116 | exynos = devm_kzalloc(dev, sizeof(*exynos), GFP_KERNEL); |
Jingoo Han | 734d5a5 | 2014-07-17 12:45:11 +0900 | [diff] [blame] | 117 | if (!exynos) |
Andy Shevchenko | b09e99e | 2014-05-15 15:53:32 +0300 | [diff] [blame] | 118 | return -ENOMEM; |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 119 | |
Vivek Gautam | accefdd | 2012-11-03 18:00:27 +0530 | [diff] [blame] | 120 | /* |
| 121 | * Right now device-tree probed devices don't get dma_mask set. |
| 122 | * Since shared usb code relies on it, set it here for now. |
| 123 | * Once we move to full device tree support this will vanish off. |
| 124 | */ |
Russell King | e1fd734 | 2013-06-27 12:36:37 +0100 | [diff] [blame] | 125 | ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32)); |
Russell King | 22d9d8e | 2013-06-10 16:28:49 +0100 | [diff] [blame] | 126 | if (ret) |
Andy Shevchenko | b09e99e | 2014-05-15 15:53:32 +0300 | [diff] [blame] | 127 | return ret; |
Vivek Gautam | accefdd | 2012-11-03 18:00:27 +0530 | [diff] [blame] | 128 | |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 129 | platform_set_drvdata(pdev, exynos); |
| 130 | |
Vivek Gautam | c1a3aca | 2014-11-21 19:05:45 +0530 | [diff] [blame] | 131 | exynos->dev = dev; |
| 132 | |
| 133 | exynos->clk = devm_clk_get(dev, "usbdrd30"); |
| 134 | if (IS_ERR(exynos->clk)) { |
Jingoo Han | 20b97dc | 2012-11-13 11:20:49 +0900 | [diff] [blame] | 135 | dev_err(dev, "couldn't get clock\n"); |
Andy Shevchenko | b09e99e | 2014-05-15 15:53:32 +0300 | [diff] [blame] | 136 | return -EINVAL; |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 137 | } |
Vivek Gautam | ddb5147 | 2013-03-14 16:14:58 +0530 | [diff] [blame] | 138 | clk_prepare_enable(exynos->clk); |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 139 | |
Vivek Gautam | 72d996f | 2014-11-21 19:05:46 +0530 | [diff] [blame] | 140 | exynos->susp_clk = devm_clk_get(dev, "usbdrd30_susp_clk"); |
| 141 | if (IS_ERR(exynos->susp_clk)) { |
Felipe Balbi | 42f69a0 | 2015-06-30 12:47:45 -0500 | [diff] [blame] | 142 | dev_info(dev, "no suspend clk specified\n"); |
Vivek Gautam | 72d996f | 2014-11-21 19:05:46 +0530 | [diff] [blame] | 143 | exynos->susp_clk = NULL; |
| 144 | } |
| 145 | clk_prepare_enable(exynos->susp_clk); |
| 146 | |
Vivek Gautam | ed692a9 | 2014-11-21 19:05:47 +0530 | [diff] [blame] | 147 | if (of_device_is_compatible(node, "samsung,exynos7-dwusb3")) { |
| 148 | exynos->axius_clk = devm_clk_get(dev, "usbdrd30_axius_clk"); |
| 149 | if (IS_ERR(exynos->axius_clk)) { |
| 150 | dev_err(dev, "no AXI UpScaler clk specified\n"); |
| 151 | return -ENODEV; |
| 152 | } |
| 153 | clk_prepare_enable(exynos->axius_clk); |
| 154 | } else { |
| 155 | exynos->axius_clk = NULL; |
| 156 | } |
| 157 | |
Vivek Gautam | bd8ce54 | 2014-04-21 17:46:44 +0530 | [diff] [blame] | 158 | exynos->vdd33 = devm_regulator_get(dev, "vdd33"); |
| 159 | if (IS_ERR(exynos->vdd33)) { |
| 160 | ret = PTR_ERR(exynos->vdd33); |
| 161 | goto err2; |
| 162 | } |
| 163 | ret = regulator_enable(exynos->vdd33); |
| 164 | if (ret) { |
| 165 | dev_err(dev, "Failed to enable VDD33 supply\n"); |
| 166 | goto err2; |
| 167 | } |
| 168 | |
| 169 | exynos->vdd10 = devm_regulator_get(dev, "vdd10"); |
| 170 | if (IS_ERR(exynos->vdd10)) { |
| 171 | ret = PTR_ERR(exynos->vdd10); |
| 172 | goto err3; |
| 173 | } |
| 174 | ret = regulator_enable(exynos->vdd10); |
| 175 | if (ret) { |
| 176 | dev_err(dev, "Failed to enable VDD10 supply\n"); |
| 177 | goto err3; |
| 178 | } |
| 179 | |
Steinar H. Gunderson | 4879efb | 2016-05-24 20:13:15 +0200 | [diff] [blame] | 180 | ret = dwc3_exynos_register_phys(exynos); |
| 181 | if (ret) { |
| 182 | dev_err(dev, "couldn't register PHYs\n"); |
| 183 | goto err4; |
| 184 | } |
| 185 | |
Vivek Gautam | adcf20d | 2013-03-14 18:09:49 +0530 | [diff] [blame] | 186 | if (node) { |
| 187 | ret = of_platform_populate(node, NULL, NULL, dev); |
| 188 | if (ret) { |
| 189 | dev_err(dev, "failed to add dwc3 core\n"); |
Steinar H. Gunderson | 4879efb | 2016-05-24 20:13:15 +0200 | [diff] [blame] | 190 | goto err5; |
Vivek Gautam | adcf20d | 2013-03-14 18:09:49 +0530 | [diff] [blame] | 191 | } |
| 192 | } else { |
| 193 | dev_err(dev, "no device node, failed to add dwc3 core\n"); |
| 194 | ret = -ENODEV; |
Steinar H. Gunderson | 4879efb | 2016-05-24 20:13:15 +0200 | [diff] [blame] | 195 | goto err5; |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 196 | } |
| 197 | |
| 198 | return 0; |
| 199 | |
Steinar H. Gunderson | 4879efb | 2016-05-24 20:13:15 +0200 | [diff] [blame] | 200 | err5: |
| 201 | platform_device_unregister(exynos->usb2_phy); |
| 202 | platform_device_unregister(exynos->usb3_phy); |
Vivek Gautam | bd8ce54 | 2014-04-21 17:46:44 +0530 | [diff] [blame] | 203 | err4: |
| 204 | regulator_disable(exynos->vdd10); |
| 205 | err3: |
| 206 | regulator_disable(exynos->vdd33); |
Jingoo Han | 20b97dc | 2012-11-13 11:20:49 +0900 | [diff] [blame] | 207 | err2: |
Vivek Gautam | ed692a9 | 2014-11-21 19:05:47 +0530 | [diff] [blame] | 208 | clk_disable_unprepare(exynos->axius_clk); |
Vivek Gautam | 72d996f | 2014-11-21 19:05:46 +0530 | [diff] [blame] | 209 | clk_disable_unprepare(exynos->susp_clk); |
Vivek Gautam | c1a3aca | 2014-11-21 19:05:45 +0530 | [diff] [blame] | 210 | clk_disable_unprepare(exynos->clk); |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 211 | return ret; |
| 212 | } |
| 213 | |
Bill Pemberton | fb4e98a | 2012-11-19 13:26:20 -0500 | [diff] [blame] | 214 | static int dwc3_exynos_remove(struct platform_device *pdev) |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 215 | { |
| 216 | struct dwc3_exynos *exynos = platform_get_drvdata(pdev); |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 217 | |
Peter Chen | 022d054 | 2013-05-24 14:30:16 +0800 | [diff] [blame] | 218 | device_for_each_child(&pdev->dev, NULL, dwc3_exynos_remove_child); |
Felipe Balbi | d720f05 | 2012-07-19 14:01:10 +0300 | [diff] [blame] | 219 | platform_device_unregister(exynos->usb2_phy); |
| 220 | platform_device_unregister(exynos->usb3_phy); |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 221 | |
Vivek Gautam | ed692a9 | 2014-11-21 19:05:47 +0530 | [diff] [blame] | 222 | clk_disable_unprepare(exynos->axius_clk); |
Vivek Gautam | 72d996f | 2014-11-21 19:05:46 +0530 | [diff] [blame] | 223 | clk_disable_unprepare(exynos->susp_clk); |
Vivek Gautam | ddb5147 | 2013-03-14 16:14:58 +0530 | [diff] [blame] | 224 | clk_disable_unprepare(exynos->clk); |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 225 | |
Vivek Gautam | bd8ce54 | 2014-04-21 17:46:44 +0530 | [diff] [blame] | 226 | regulator_disable(exynos->vdd33); |
| 227 | regulator_disable(exynos->vdd10); |
| 228 | |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 229 | return 0; |
| 230 | } |
| 231 | |
Vivek Gautam | accefdd | 2012-11-03 18:00:27 +0530 | [diff] [blame] | 232 | static const struct of_device_id exynos_dwc3_match[] = { |
Vivek Gautam | fe29db8 | 2013-01-24 19:15:30 +0530 | [diff] [blame] | 233 | { .compatible = "samsung,exynos5250-dwusb3" }, |
Vivek Gautam | ed692a9 | 2014-11-21 19:05:47 +0530 | [diff] [blame] | 234 | { .compatible = "samsung,exynos7-dwusb3" }, |
Vivek Gautam | accefdd | 2012-11-03 18:00:27 +0530 | [diff] [blame] | 235 | {}, |
| 236 | }; |
| 237 | MODULE_DEVICE_TABLE(of, exynos_dwc3_match); |
Vivek Gautam | accefdd | 2012-11-03 18:00:27 +0530 | [diff] [blame] | 238 | |
Jingoo Han | 19fda7c | 2013-03-26 01:52:48 +0000 | [diff] [blame] | 239 | #ifdef CONFIG_PM_SLEEP |
Vikas Sajjan | 0646caf | 2012-10-16 15:15:38 +0530 | [diff] [blame] | 240 | static int dwc3_exynos_suspend(struct device *dev) |
| 241 | { |
| 242 | struct dwc3_exynos *exynos = dev_get_drvdata(dev); |
| 243 | |
Vivek Gautam | ed692a9 | 2014-11-21 19:05:47 +0530 | [diff] [blame] | 244 | clk_disable(exynos->axius_clk); |
Vikas Sajjan | 0646caf | 2012-10-16 15:15:38 +0530 | [diff] [blame] | 245 | clk_disable(exynos->clk); |
| 246 | |
Vivek Gautam | bd8ce54 | 2014-04-21 17:46:44 +0530 | [diff] [blame] | 247 | regulator_disable(exynos->vdd33); |
| 248 | regulator_disable(exynos->vdd10); |
| 249 | |
Vikas Sajjan | 0646caf | 2012-10-16 15:15:38 +0530 | [diff] [blame] | 250 | return 0; |
| 251 | } |
| 252 | |
| 253 | static int dwc3_exynos_resume(struct device *dev) |
| 254 | { |
| 255 | struct dwc3_exynos *exynos = dev_get_drvdata(dev); |
Vivek Gautam | bd8ce54 | 2014-04-21 17:46:44 +0530 | [diff] [blame] | 256 | int ret; |
| 257 | |
| 258 | ret = regulator_enable(exynos->vdd33); |
| 259 | if (ret) { |
| 260 | dev_err(dev, "Failed to enable VDD33 supply\n"); |
| 261 | return ret; |
| 262 | } |
| 263 | ret = regulator_enable(exynos->vdd10); |
| 264 | if (ret) { |
| 265 | dev_err(dev, "Failed to enable VDD10 supply\n"); |
| 266 | return ret; |
| 267 | } |
Vikas Sajjan | 0646caf | 2012-10-16 15:15:38 +0530 | [diff] [blame] | 268 | |
| 269 | clk_enable(exynos->clk); |
Vivek Gautam | ed692a9 | 2014-11-21 19:05:47 +0530 | [diff] [blame] | 270 | clk_enable(exynos->axius_clk); |
Vikas Sajjan | 0646caf | 2012-10-16 15:15:38 +0530 | [diff] [blame] | 271 | |
| 272 | /* runtime set active to reflect active state. */ |
| 273 | pm_runtime_disable(dev); |
| 274 | pm_runtime_set_active(dev); |
| 275 | pm_runtime_enable(dev); |
| 276 | |
| 277 | return 0; |
| 278 | } |
| 279 | |
| 280 | static const struct dev_pm_ops dwc3_exynos_dev_pm_ops = { |
| 281 | SET_SYSTEM_SLEEP_PM_OPS(dwc3_exynos_suspend, dwc3_exynos_resume) |
| 282 | }; |
| 283 | |
| 284 | #define DEV_PM_OPS (&dwc3_exynos_dev_pm_ops) |
| 285 | #else |
| 286 | #define DEV_PM_OPS NULL |
Jingoo Han | 19fda7c | 2013-03-26 01:52:48 +0000 | [diff] [blame] | 287 | #endif /* CONFIG_PM_SLEEP */ |
Vikas Sajjan | 0646caf | 2012-10-16 15:15:38 +0530 | [diff] [blame] | 288 | |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 289 | static struct platform_driver dwc3_exynos_driver = { |
| 290 | .probe = dwc3_exynos_probe, |
Bill Pemberton | 7690417 | 2012-11-19 13:21:08 -0500 | [diff] [blame] | 291 | .remove = dwc3_exynos_remove, |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 292 | .driver = { |
| 293 | .name = "exynos-dwc3", |
Jingoo Han | b4c9f57 | 2014-11-04 11:01:47 +0900 | [diff] [blame] | 294 | .of_match_table = exynos_dwc3_match, |
Vikas Sajjan | 0646caf | 2012-10-16 15:15:38 +0530 | [diff] [blame] | 295 | .pm = DEV_PM_OPS, |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 296 | }, |
| 297 | }; |
| 298 | |
| 299 | module_platform_driver(dwc3_exynos_driver); |
| 300 | |
| 301 | MODULE_ALIAS("platform:exynos-dwc3"); |
| 302 | MODULE_AUTHOR("Anton Tikhomirov <av.tikhomirov@samsung.com>"); |
Felipe Balbi | 5945f78 | 2013-06-30 14:15:11 +0300 | [diff] [blame] | 303 | MODULE_LICENSE("GPL v2"); |
Anton Tikhomirov | d28a968 | 2012-02-15 17:04:56 +0900 | [diff] [blame] | 304 | MODULE_DESCRIPTION("DesignWare USB3 EXYNOS Glue Layer"); |