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Felipe Balbi58a54912009-11-22 10:11:01 -08001/*
Felipe Balbia8480ea2011-03-01 20:08:15 +05302 * usb-host.c - OMAP USB Host
Felipe Balbi58a54912009-11-22 10:11:01 -08003 *
4 * This file will contain the board specific details for the
Felipe Balbia8480ea2011-03-01 20:08:15 +05305 * Synopsys EHCI/OHCI host controller on OMAP3430 and onwards
Felipe Balbi58a54912009-11-22 10:11:01 -08006 *
Felipe Balbia8480ea2011-03-01 20:08:15 +05307 * Copyright (C) 2007-2011 Texas Instruments
Felipe Balbi58a54912009-11-22 10:11:01 -08008 * Author: Vikram Pandita <vikram.pandita@ti.com>
Keshava Munegowda22363962011-03-01 20:08:18 +05309 * Author: Keshava Munegowda <keshava_mgowda@ti.com>
Felipe Balbi58a54912009-11-22 10:11:01 -080010 *
11 * Generalization by:
Felipe Balbia8480ea2011-03-01 20:08:15 +053012 * Felipe Balbi <balbi@ti.com>
Felipe Balbi58a54912009-11-22 10:11:01 -080013 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License version 2 as
16 * published by the Free Software Foundation.
17 */
18
19#include <linux/types.h>
20#include <linux/errno.h>
21#include <linux/delay.h>
22#include <linux/platform_device.h>
Keshava Munegowda22363962011-03-01 20:08:18 +053023#include <linux/slab.h>
Amit Kucheriabfb01192010-06-09 13:53:05 +030024#include <linux/dma-mapping.h>
Roger Quadros5ecd52e2013-03-20 17:44:41 +020025#include <linux/regulator/machine.h>
26#include <linux/regulator/fixed.h>
27#include <linux/string.h>
28#include <linux/io.h>
29#include <linux/gpio.h>
30#include <linux/usb/phy.h>
Sebastian Andrzej Siewior3fa4d732013-07-26 12:16:42 +020031#include <linux/usb/usb_phy_gen_xceiv.h>
Felipe Balbi58a54912009-11-22 10:11:01 -080032
Tony Lindgrene4c060d2012-10-05 13:25:59 -070033#include "soc.h"
Tony Lindgren25c7d492012-10-02 17:25:48 -070034#include "omap_device.h"
Tony Lindgren4896e392009-12-11 16:16:32 -080035#include "mux.h"
Tony Lindgren54db6ee2012-10-24 14:26:18 -070036#include "usb.h"
Tony Lindgren4896e392009-12-11 16:16:32 -080037
Keshava Munegowda22363962011-03-01 20:08:18 +053038#ifdef CONFIG_MFD_OMAP_USB_HOST
Felipe Balbi58a54912009-11-22 10:11:01 -080039
Keshava Munegowda50b2a9b2011-10-11 13:21:37 +053040#define OMAP_USBHS_DEVICE "usbhs_omap"
Keshava Munegowda760189b2012-07-16 19:01:10 +053041#define OMAP_USBTLL_DEVICE "usbhs_tll"
Keshava Munegowda50b2a9b2011-10-11 13:21:37 +053042#define USBHS_UHH_HWMODNAME "usb_host_hs"
43#define USBHS_TLL_HWMODNAME "usb_tll_hs"
Felipe Balbi58a54912009-11-22 10:11:01 -080044
45/* MUX settings for EHCI pins */
46/*
47 * setup_ehci_io_mux - initialize IO pad mux for USBHOST
48 */
Igor Grinberg1512f0d2012-03-26 16:51:10 +020049static void __init setup_ehci_io_mux(const enum usbhs_omap_port_mode *port_mode)
Felipe Balbi58a54912009-11-22 10:11:01 -080050{
51 switch (port_mode[0]) {
Keshava Munegowda181b2502011-03-01 20:08:16 +053052 case OMAP_EHCI_PORT_MODE_PHY:
Tony Lindgren4896e392009-12-11 16:16:32 -080053 omap_mux_init_signal("hsusb1_stp", OMAP_PIN_OUTPUT);
54 omap_mux_init_signal("hsusb1_clk", OMAP_PIN_OUTPUT);
55 omap_mux_init_signal("hsusb1_dir", OMAP_PIN_INPUT_PULLDOWN);
56 omap_mux_init_signal("hsusb1_nxt", OMAP_PIN_INPUT_PULLDOWN);
57 omap_mux_init_signal("hsusb1_data0", OMAP_PIN_INPUT_PULLDOWN);
58 omap_mux_init_signal("hsusb1_data1", OMAP_PIN_INPUT_PULLDOWN);
59 omap_mux_init_signal("hsusb1_data2", OMAP_PIN_INPUT_PULLDOWN);
60 omap_mux_init_signal("hsusb1_data3", OMAP_PIN_INPUT_PULLDOWN);
61 omap_mux_init_signal("hsusb1_data4", OMAP_PIN_INPUT_PULLDOWN);
62 omap_mux_init_signal("hsusb1_data5", OMAP_PIN_INPUT_PULLDOWN);
63 omap_mux_init_signal("hsusb1_data6", OMAP_PIN_INPUT_PULLDOWN);
64 omap_mux_init_signal("hsusb1_data7", OMAP_PIN_INPUT_PULLDOWN);
Felipe Balbi58a54912009-11-22 10:11:01 -080065 break;
Keshava Munegowda181b2502011-03-01 20:08:16 +053066 case OMAP_EHCI_PORT_MODE_TLL:
Tony Lindgren4896e392009-12-11 16:16:32 -080067 omap_mux_init_signal("hsusb1_tll_stp",
68 OMAP_PIN_INPUT_PULLUP);
69 omap_mux_init_signal("hsusb1_tll_clk",
70 OMAP_PIN_INPUT_PULLDOWN);
71 omap_mux_init_signal("hsusb1_tll_dir",
72 OMAP_PIN_INPUT_PULLDOWN);
73 omap_mux_init_signal("hsusb1_tll_nxt",
74 OMAP_PIN_INPUT_PULLDOWN);
75 omap_mux_init_signal("hsusb1_tll_data0",
76 OMAP_PIN_INPUT_PULLDOWN);
77 omap_mux_init_signal("hsusb1_tll_data1",
78 OMAP_PIN_INPUT_PULLDOWN);
79 omap_mux_init_signal("hsusb1_tll_data2",
80 OMAP_PIN_INPUT_PULLDOWN);
81 omap_mux_init_signal("hsusb1_tll_data3",
82 OMAP_PIN_INPUT_PULLDOWN);
83 omap_mux_init_signal("hsusb1_tll_data4",
84 OMAP_PIN_INPUT_PULLDOWN);
85 omap_mux_init_signal("hsusb1_tll_data5",
86 OMAP_PIN_INPUT_PULLDOWN);
87 omap_mux_init_signal("hsusb1_tll_data6",
88 OMAP_PIN_INPUT_PULLDOWN);
89 omap_mux_init_signal("hsusb1_tll_data7",
90 OMAP_PIN_INPUT_PULLDOWN);
Felipe Balbi58a54912009-11-22 10:11:01 -080091 break;
Keshava Munegowda181b2502011-03-01 20:08:16 +053092 case OMAP_USBHS_PORT_MODE_UNUSED:
Felipe Balbi58a54912009-11-22 10:11:01 -080093 /* FALLTHROUGH */
94 default:
95 break;
96 }
97
98 switch (port_mode[1]) {
Keshava Munegowda181b2502011-03-01 20:08:16 +053099 case OMAP_EHCI_PORT_MODE_PHY:
Tony Lindgren4896e392009-12-11 16:16:32 -0800100 omap_mux_init_signal("hsusb2_stp", OMAP_PIN_OUTPUT);
101 omap_mux_init_signal("hsusb2_clk", OMAP_PIN_OUTPUT);
102 omap_mux_init_signal("hsusb2_dir", OMAP_PIN_INPUT_PULLDOWN);
103 omap_mux_init_signal("hsusb2_nxt", OMAP_PIN_INPUT_PULLDOWN);
104 omap_mux_init_signal("hsusb2_data0",
105 OMAP_PIN_INPUT_PULLDOWN);
106 omap_mux_init_signal("hsusb2_data1",
107 OMAP_PIN_INPUT_PULLDOWN);
108 omap_mux_init_signal("hsusb2_data2",
109 OMAP_PIN_INPUT_PULLDOWN);
110 omap_mux_init_signal("hsusb2_data3",
111 OMAP_PIN_INPUT_PULLDOWN);
112 omap_mux_init_signal("hsusb2_data4",
113 OMAP_PIN_INPUT_PULLDOWN);
114 omap_mux_init_signal("hsusb2_data5",
115 OMAP_PIN_INPUT_PULLDOWN);
116 omap_mux_init_signal("hsusb2_data6",
117 OMAP_PIN_INPUT_PULLDOWN);
118 omap_mux_init_signal("hsusb2_data7",
119 OMAP_PIN_INPUT_PULLDOWN);
Felipe Balbi58a54912009-11-22 10:11:01 -0800120 break;
Keshava Munegowda181b2502011-03-01 20:08:16 +0530121 case OMAP_EHCI_PORT_MODE_TLL:
Tony Lindgren4896e392009-12-11 16:16:32 -0800122 omap_mux_init_signal("hsusb2_tll_stp",
123 OMAP_PIN_INPUT_PULLUP);
124 omap_mux_init_signal("hsusb2_tll_clk",
125 OMAP_PIN_INPUT_PULLDOWN);
126 omap_mux_init_signal("hsusb2_tll_dir",
127 OMAP_PIN_INPUT_PULLDOWN);
128 omap_mux_init_signal("hsusb2_tll_nxt",
129 OMAP_PIN_INPUT_PULLDOWN);
130 omap_mux_init_signal("hsusb2_tll_data0",
131 OMAP_PIN_INPUT_PULLDOWN);
132 omap_mux_init_signal("hsusb2_tll_data1",
133 OMAP_PIN_INPUT_PULLDOWN);
134 omap_mux_init_signal("hsusb2_tll_data2",
135 OMAP_PIN_INPUT_PULLDOWN);
136 omap_mux_init_signal("hsusb2_tll_data3",
137 OMAP_PIN_INPUT_PULLDOWN);
138 omap_mux_init_signal("hsusb2_tll_data4",
139 OMAP_PIN_INPUT_PULLDOWN);
140 omap_mux_init_signal("hsusb2_tll_data5",
141 OMAP_PIN_INPUT_PULLDOWN);
142 omap_mux_init_signal("hsusb2_tll_data6",
143 OMAP_PIN_INPUT_PULLDOWN);
144 omap_mux_init_signal("hsusb2_tll_data7",
145 OMAP_PIN_INPUT_PULLDOWN);
Felipe Balbi58a54912009-11-22 10:11:01 -0800146 break;
Keshava Munegowda181b2502011-03-01 20:08:16 +0530147 case OMAP_USBHS_PORT_MODE_UNUSED:
Felipe Balbi58a54912009-11-22 10:11:01 -0800148 /* FALLTHROUGH */
149 default:
150 break;
151 }
152
153 switch (port_mode[2]) {
Keshava Munegowda181b2502011-03-01 20:08:16 +0530154 case OMAP_EHCI_PORT_MODE_PHY:
Felipe Balbi58a54912009-11-22 10:11:01 -0800155 printk(KERN_WARNING "Port3 can't be used in PHY mode\n");
156 break;
Keshava Munegowda181b2502011-03-01 20:08:16 +0530157 case OMAP_EHCI_PORT_MODE_TLL:
Tony Lindgren4896e392009-12-11 16:16:32 -0800158 omap_mux_init_signal("hsusb3_tll_stp",
159 OMAP_PIN_INPUT_PULLUP);
160 omap_mux_init_signal("hsusb3_tll_clk",
161 OMAP_PIN_INPUT_PULLDOWN);
162 omap_mux_init_signal("hsusb3_tll_dir",
163 OMAP_PIN_INPUT_PULLDOWN);
164 omap_mux_init_signal("hsusb3_tll_nxt",
165 OMAP_PIN_INPUT_PULLDOWN);
166 omap_mux_init_signal("hsusb3_tll_data0",
167 OMAP_PIN_INPUT_PULLDOWN);
168 omap_mux_init_signal("hsusb3_tll_data1",
169 OMAP_PIN_INPUT_PULLDOWN);
170 omap_mux_init_signal("hsusb3_tll_data2",
171 OMAP_PIN_INPUT_PULLDOWN);
172 omap_mux_init_signal("hsusb3_tll_data3",
173 OMAP_PIN_INPUT_PULLDOWN);
174 omap_mux_init_signal("hsusb3_tll_data4",
175 OMAP_PIN_INPUT_PULLDOWN);
176 omap_mux_init_signal("hsusb3_tll_data5",
177 OMAP_PIN_INPUT_PULLDOWN);
178 omap_mux_init_signal("hsusb3_tll_data6",
179 OMAP_PIN_INPUT_PULLDOWN);
180 omap_mux_init_signal("hsusb3_tll_data7",
181 OMAP_PIN_INPUT_PULLDOWN);
Felipe Balbi58a54912009-11-22 10:11:01 -0800182 break;
Keshava Munegowda181b2502011-03-01 20:08:16 +0530183 case OMAP_USBHS_PORT_MODE_UNUSED:
Felipe Balbi58a54912009-11-22 10:11:01 -0800184 /* FALLTHROUGH */
185 default:
186 break;
187 }
188
189 return;
190}
191
Igor Grinberg1512f0d2012-03-26 16:51:10 +0200192static void __init setup_ohci_io_mux(const enum usbhs_omap_port_mode *port_mode)
Anand Gadiyar95344fc2010-05-10 21:56:10 +0530193{
194 switch (port_mode[0]) {
195 case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
196 case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM:
197 case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0:
198 case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM:
199 omap_mux_init_signal("mm1_rxdp",
200 OMAP_PIN_INPUT_PULLDOWN);
201 omap_mux_init_signal("mm1_rxdm",
202 OMAP_PIN_INPUT_PULLDOWN);
203 /* FALLTHROUGH */
204 case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM:
205 case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM:
206 omap_mux_init_signal("mm1_rxrcv",
207 OMAP_PIN_INPUT_PULLDOWN);
208 /* FALLTHROUGH */
209 case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0:
210 case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0:
211 omap_mux_init_signal("mm1_txen_n", OMAP_PIN_OUTPUT);
212 /* FALLTHROUGH */
213 case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0:
214 case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM:
215 omap_mux_init_signal("mm1_txse0",
216 OMAP_PIN_INPUT_PULLDOWN);
217 omap_mux_init_signal("mm1_txdat",
218 OMAP_PIN_INPUT_PULLDOWN);
219 break;
Keshava Munegowda181b2502011-03-01 20:08:16 +0530220 case OMAP_USBHS_PORT_MODE_UNUSED:
Anand Gadiyar95344fc2010-05-10 21:56:10 +0530221 /* FALLTHROUGH */
222 default:
223 break;
224 }
225 switch (port_mode[1]) {
226 case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
227 case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM:
228 case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0:
229 case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM:
230 omap_mux_init_signal("mm2_rxdp",
231 OMAP_PIN_INPUT_PULLDOWN);
232 omap_mux_init_signal("mm2_rxdm",
233 OMAP_PIN_INPUT_PULLDOWN);
234 /* FALLTHROUGH */
235 case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM:
236 case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM:
237 omap_mux_init_signal("mm2_rxrcv",
238 OMAP_PIN_INPUT_PULLDOWN);
239 /* FALLTHROUGH */
240 case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0:
241 case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0:
242 omap_mux_init_signal("mm2_txen_n", OMAP_PIN_OUTPUT);
243 /* FALLTHROUGH */
244 case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0:
245 case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM:
246 omap_mux_init_signal("mm2_txse0",
247 OMAP_PIN_INPUT_PULLDOWN);
248 omap_mux_init_signal("mm2_txdat",
249 OMAP_PIN_INPUT_PULLDOWN);
250 break;
Keshava Munegowda181b2502011-03-01 20:08:16 +0530251 case OMAP_USBHS_PORT_MODE_UNUSED:
Anand Gadiyar95344fc2010-05-10 21:56:10 +0530252 /* FALLTHROUGH */
253 default:
254 break;
255 }
256 switch (port_mode[2]) {
257 case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
258 case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM:
259 case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0:
260 case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM:
261 omap_mux_init_signal("mm3_rxdp",
262 OMAP_PIN_INPUT_PULLDOWN);
263 omap_mux_init_signal("mm3_rxdm",
264 OMAP_PIN_INPUT_PULLDOWN);
265 /* FALLTHROUGH */
266 case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM:
267 case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM:
268 omap_mux_init_signal("mm3_rxrcv",
269 OMAP_PIN_INPUT_PULLDOWN);
270 /* FALLTHROUGH */
271 case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0:
272 case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0:
273 omap_mux_init_signal("mm3_txen_n", OMAP_PIN_OUTPUT);
274 /* FALLTHROUGH */
275 case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0:
276 case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM:
277 omap_mux_init_signal("mm3_txse0",
278 OMAP_PIN_INPUT_PULLDOWN);
279 omap_mux_init_signal("mm3_txdat",
280 OMAP_PIN_INPUT_PULLDOWN);
281 break;
Keshava Munegowda181b2502011-03-01 20:08:16 +0530282 case OMAP_USBHS_PORT_MODE_UNUSED:
Anand Gadiyar95344fc2010-05-10 21:56:10 +0530283 /* FALLTHROUGH */
284 default:
285 break;
286 }
287}
288
Roger Quadros42973152013-02-14 10:13:48 +0200289void __init usbhs_init(struct usbhs_omap_platform_data *pdata)
Keshava Munegowda22363962011-03-01 20:08:18 +0530290{
Keshava Munegowda760189b2012-07-16 19:01:10 +0530291 struct omap_hwmod *uhh_hwm, *tll_hwm;
Felipe Balbiabe763f2012-02-14 10:54:46 +0200292 struct platform_device *pdev;
Keshava Munegowda50b2a9b2011-10-11 13:21:37 +0530293 int bus_id = -1;
Keshava Munegowda22363962011-03-01 20:08:18 +0530294
295 if (cpu_is_omap34xx()) {
Keshava Munegowda22363962011-03-01 20:08:18 +0530296 setup_ehci_io_mux(pdata->port_mode);
297 setup_ohci_io_mux(pdata->port_mode);
Roger Quadros63b68902012-12-14 09:09:11 -0800298
299 if (omap_rev() <= OMAP3430_REV_ES2_1)
Roger Quadros42973152013-02-14 10:13:48 +0200300 pdata->single_ulpi_bypass = true;
Roger Quadros63b68902012-12-14 09:09:11 -0800301
Keshava Munegowda22363962011-03-01 20:08:18 +0530302 }
303
Keshava Munegowda760189b2012-07-16 19:01:10 +0530304 uhh_hwm = omap_hwmod_lookup(USBHS_UHH_HWMODNAME);
305 if (!uhh_hwm) {
Keshava Munegowda50b2a9b2011-10-11 13:21:37 +0530306 pr_err("Could not look up %s\n", USBHS_UHH_HWMODNAME);
307 return;
Keshava Munegowda22363962011-03-01 20:08:18 +0530308 }
309
Keshava Munegowda760189b2012-07-16 19:01:10 +0530310 tll_hwm = omap_hwmod_lookup(USBHS_TLL_HWMODNAME);
311 if (!tll_hwm) {
Keshava Munegowda50b2a9b2011-10-11 13:21:37 +0530312 pr_err("Could not look up %s\n", USBHS_TLL_HWMODNAME);
313 return;
314 }
Keshava Munegowda22363962011-03-01 20:08:18 +0530315
Keshava Munegowda760189b2012-07-16 19:01:10 +0530316 pdev = omap_device_build(OMAP_USBTLL_DEVICE, bus_id, tll_hwm,
Arnd Bergmann6e7f7cf2013-02-19 20:54:15 +0100317 pdata, sizeof(*pdata));
Felipe Balbiabe763f2012-02-14 10:54:46 +0200318 if (IS_ERR(pdev)) {
Keshava Munegowda760189b2012-07-16 19:01:10 +0530319 pr_err("Could not build hwmod device %s\n",
320 USBHS_TLL_HWMODNAME);
321 return;
322 }
323
324 pdev = omap_device_build(OMAP_USBHS_DEVICE, bus_id, uhh_hwm,
Arnd Bergmann6e7f7cf2013-02-19 20:54:15 +0100325 pdata, sizeof(*pdata));
Keshava Munegowda760189b2012-07-16 19:01:10 +0530326 if (IS_ERR(pdev)) {
327 pr_err("Could not build hwmod devices %s\n",
328 USBHS_UHH_HWMODNAME);
Keshava Munegowda50b2a9b2011-10-11 13:21:37 +0530329 return;
330 }
Keshava Munegowda22363962011-03-01 20:08:18 +0530331}
332
Anand Gadiyar95344fc2010-05-10 21:56:10 +0530333#else
334
Roger Quadros42973152013-02-14 10:13:48 +0200335void __init usbhs_init(struct usbhs_omap_platform_data *pdata)
Keshava Munegowda22363962011-03-01 20:08:18 +0530336{
337}
338
Keshava Munegowda22363962011-03-01 20:08:18 +0530339#endif
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200340
341/* Template for PHY regulators */
342static struct fixed_voltage_config hsusb_reg_config = {
343 /* .supply_name filled later */
344 .microvolts = 3300000,
345 .gpio = -1, /* updated later */
346 .startup_delay = 70000, /* 70msec */
347 .enable_high = 1, /* updated later */
348 .enabled_at_boot = 0, /* keep in RESET */
349 /* .init_data filled later */
350};
351
Sebastian Andrzej Siewior3fa4d732013-07-26 12:16:42 +0200352static const char *nop_name = "usb_phy_gen_xceiv"; /* NOP PHY driver */
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200353static const char *reg_name = "reg-fixed-voltage"; /* Regulator driver */
354
355/**
356 * usbhs_add_regulator - Add a gpio based fixed voltage regulator device
357 * @name: name for the regulator
358 * @dev_id: device id of the device this regulator supplies power to
359 * @dev_supply: supply name that the device expects
360 * @gpio: GPIO number
361 * @polarity: 1 - Active high, 0 - Active low
362 */
363static int usbhs_add_regulator(char *name, char *dev_id, char *dev_supply,
364 int gpio, int polarity)
365{
366 struct regulator_consumer_supply *supplies;
367 struct regulator_init_data *reg_data;
368 struct fixed_voltage_config *config;
369 struct platform_device *pdev;
Roger Quadrose41a5f82013-05-24 16:06:58 +0300370 struct platform_device_info pdevinfo;
371 int ret = -ENOMEM;
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200372
373 supplies = kzalloc(sizeof(*supplies), GFP_KERNEL);
374 if (!supplies)
375 return -ENOMEM;
376
377 supplies->supply = dev_supply;
378 supplies->dev_name = dev_id;
379
380 reg_data = kzalloc(sizeof(*reg_data), GFP_KERNEL);
381 if (!reg_data)
Roger Quadrose41a5f82013-05-24 16:06:58 +0300382 goto err_data;
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200383
384 reg_data->constraints.valid_ops_mask = REGULATOR_CHANGE_STATUS;
385 reg_data->consumer_supplies = supplies;
386 reg_data->num_consumer_supplies = 1;
387
388 config = kmemdup(&hsusb_reg_config, sizeof(hsusb_reg_config),
389 GFP_KERNEL);
390 if (!config)
Roger Quadrose41a5f82013-05-24 16:06:58 +0300391 goto err_config;
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200392
Roger Quadrose41a5f82013-05-24 16:06:58 +0300393 config->supply_name = kstrdup(name, GFP_KERNEL);
394 if (!config->supply_name)
395 goto err_supplyname;
396
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200397 config->gpio = gpio;
398 config->enable_high = polarity;
399 config->init_data = reg_data;
400
401 /* create a regulator device */
Roger Quadrose41a5f82013-05-24 16:06:58 +0300402 memset(&pdevinfo, 0, sizeof(pdevinfo));
403 pdevinfo.name = reg_name;
404 pdevinfo.id = PLATFORM_DEVID_AUTO;
405 pdevinfo.data = config;
406 pdevinfo.size_data = sizeof(*config);
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200407
Roger Quadrose41a5f82013-05-24 16:06:58 +0300408 pdev = platform_device_register_full(&pdevinfo);
409 if (IS_ERR(pdev)) {
410 ret = PTR_ERR(pdev);
411 pr_err("%s: Failed registering regulator %s for %s : %d\n",
412 __func__, name, dev_id, ret);
413 goto err_register;
414 }
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200415
Roger Quadrose41a5f82013-05-24 16:06:58 +0300416 return 0;
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200417
Roger Quadrose41a5f82013-05-24 16:06:58 +0300418err_register:
419 kfree(config->supply_name);
420err_supplyname:
421 kfree(config);
422err_config:
423 kfree(reg_data);
424err_data:
425 kfree(supplies);
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200426 return ret;
427}
428
Roger Quadrose41a5f82013-05-24 16:06:58 +0300429#define MAX_STR 20
430
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200431int usbhs_init_phys(struct usbhs_phy_data *phy, int num_phys)
432{
Roger Quadrose41a5f82013-05-24 16:06:58 +0300433 char rail_name[MAX_STR];
434 int i;
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200435 struct platform_device *pdev;
436 char *phy_id;
Roger Quadrose41a5f82013-05-24 16:06:58 +0300437 struct platform_device_info pdevinfo;
Roger Quadros67c8d062013-09-24 11:53:49 +0300438 struct usb_phy_gen_xceiv_platform_data nop_pdata;
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200439
440 for (i = 0; i < num_phys; i++) {
441
442 if (!phy->port) {
443 pr_err("%s: Invalid port 0. Must start from 1\n",
444 __func__);
445 continue;
446 }
447
448 /* do we need a NOP PHY device ? */
449 if (!gpio_is_valid(phy->reset_gpio) &&
450 !gpio_is_valid(phy->vcc_gpio))
451 continue;
452
Roger Quadrose41a5f82013-05-24 16:06:58 +0300453 phy_id = kmalloc(MAX_STR, GFP_KERNEL);
454 if (!phy_id) {
455 pr_err("%s: kmalloc() failed\n", __func__);
456 return -ENOMEM;
457 }
458
Roger Quadros67c8d062013-09-24 11:53:49 +0300459 /* set platform data */
460 memset(&nop_pdata, 0, sizeof(nop_pdata));
461 if (gpio_is_valid(phy->vcc_gpio))
462 nop_pdata.needs_vcc = true;
Roger Quadros33d7be32013-09-24 11:53:50 +0300463 nop_pdata.gpio_reset = phy->reset_gpio;
Roger Quadros67c8d062013-09-24 11:53:49 +0300464 nop_pdata.type = USB_PHY_TYPE_USB2;
465
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200466 /* create a NOP PHY device */
Roger Quadrose41a5f82013-05-24 16:06:58 +0300467 memset(&pdevinfo, 0, sizeof(pdevinfo));
468 pdevinfo.name = nop_name;
469 pdevinfo.id = phy->port;
Roger Quadros67c8d062013-09-24 11:53:49 +0300470 pdevinfo.data = &nop_pdata;
Sebastian Andrzej Siewior3fa4d732013-07-26 12:16:42 +0200471 pdevinfo.size_data =
472 sizeof(struct usb_phy_gen_xceiv_platform_data);
473 scnprintf(phy_id, MAX_STR, "usb_phy_gen_xceiv.%d",
Roger Quadrose41a5f82013-05-24 16:06:58 +0300474 phy->port);
475 pdev = platform_device_register_full(&pdevinfo);
476 if (IS_ERR(pdev)) {
477 pr_err("%s: Failed to register device %s : %ld\n",
478 __func__, phy_id, PTR_ERR(pdev));
479 kfree(phy_id);
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200480 continue;
481 }
482
483 usb_bind_phy("ehci-omap.0", phy->port - 1, phy_id);
484
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200485 /* Do we need VCC regulator ? */
486 if (gpio_is_valid(phy->vcc_gpio)) {
Roger Quadrose41a5f82013-05-24 16:06:58 +0300487 scnprintf(rail_name, MAX_STR, "hsusb%d_vcc", phy->port);
Roger Quadros5ecd52e2013-03-20 17:44:41 +0200488 usbhs_add_regulator(rail_name, phy_id, "vcc",
489 phy->vcc_gpio, phy->vcc_polarity);
490 }
491
492 phy++;
493 }
494
495 return 0;
496}