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authorOlof Johansson <olof@lixom.net>2012-09-20 23:07:06 -0400
committerOlof Johansson <olof@lixom.net>2012-09-20 23:07:19 -0400
commit36f926cfad7aa3d9a2cac25e9317b4f69e9320d6 (patch)
tree4c5338c4694eec4a3a194afcacfda658dc640367 /include
parent5698bd757d55b1bb87edd1a9744ab09c142abfc2 (diff)
parent363366cf61c544ea476f3d220f43a95cb03014f5 (diff)
Merge tag 'xceiv-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into next/cleanup2
usb: xceiv: patches for v3.7 merge window nop xceiv got its own header to avoid polluting otg.h. It has also learned to work as USB2 and USB3 phys so we can use it on USB3 controllers. Together with those two changes to nop xceiv, we're adding basic PHY support to dwc3 driver, this is to allow platforms which actually have a SW-controllable PHY talk to them through dwc3 driver. We're adding a new phy driver for the OMAP architecture. This driver is for the PHY found in OMAP4 SoCs, and a new phy driver for the marvell architecture. An extra phy driver - for Tegra SoCs - is now moving from arch/arm/mach-tegra* to drivers/usb/phy. Also here, there's the creation of <linux/usb/phy.h> which should be used from now on for PHY drivers, even those which don't support OTG. * tag 'xceiv-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb: usb: otg: mxs-phy: Fix mx23 operation usb: dwc3: add basic PHY support usb: dwc3: exynos: add nop transceiver support usb: dwc3: omap: add nop transceiver support usb: dwc3: pci: add nop transceiver support usb: otg: move the dereference below the NULL test arm: omap: phy: remove unused functions from omap-phy-internal.c usb: twl4030: Add device tree support for twl4030 usb usb: twl6030: Add dt support for twl6030 usb usb: otg: make twl6030_usb as a comparator driver to omap_usb2 usb: phy: add a new driver for omap usb2 phy usb: phy: fix build break usb: move phy driver from mach-tegra to drivers/usb usb: otg: Move phy interface to separate file. usb: phy: isp1301: Remove unused static array and define usb: phy: mv_u3d: Add usb phy driver for mv_u3d usb: otg: Remove the unneeded NULL check usb: xceiv: nop: let it work as USB2 and USB3 phy usb: xceiv: create nop-usb-xceiv.h and avoid pollution on otg.h Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/usb/nop-usb-xceiv.h24
-rw-r--r--include/linux/usb/omap_usb.h46
-rw-r--r--include/linux/usb/otg.h236
-rw-r--r--include/linux/usb/phy.h233
-rw-r--r--include/linux/usb/phy_companion.h34
-rw-r--r--include/linux/usb/tegra_usb_phy.h80
6 files changed, 418 insertions, 235 deletions
diff --git a/include/linux/usb/nop-usb-xceiv.h b/include/linux/usb/nop-usb-xceiv.h
new file mode 100644
index 000000000000..28884c717411
--- /dev/null
+++ b/include/linux/usb/nop-usb-xceiv.h
@@ -0,0 +1,24 @@
1#ifndef __LINUX_USB_NOP_XCEIV_H
2#define __LINUX_USB_NOP_XCEIV_H
3
4#include <linux/usb/otg.h>
5
6struct nop_usb_xceiv_platform_data {
7 enum usb_phy_type type;
8};
9
10#if defined(CONFIG_NOP_USB_XCEIV) || (defined(CONFIG_NOP_USB_XCEIV_MODULE) && defined(MODULE))
11/* sometimes transceivers are accessed only through e.g. ULPI */
12extern void usb_nop_xceiv_register(void);
13extern void usb_nop_xceiv_unregister(void);
14#else
15static inline void usb_nop_xceiv_register(void)
16{
17}
18
19static inline void usb_nop_xceiv_unregister(void)
20{
21}
22#endif
23
24#endif /* __LINUX_USB_NOP_XCEIV_H */
diff --git a/include/linux/usb/omap_usb.h b/include/linux/usb/omap_usb.h
new file mode 100644
index 000000000000..0ea17f8ae820
--- /dev/null
+++ b/include/linux/usb/omap_usb.h
@@ -0,0 +1,46 @@
1/*
2 * omap_usb.h -- omap usb2 phy header file
3 *
4 * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * Author: Kishon Vijay Abraham I <kishon@ti.com>
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 */
18
19#ifndef __DRIVERS_OMAP_USB2_H
20#define __DRIVERS_OMAP_USB2_H
21
22#include <linux/usb/otg.h>
23
24struct omap_usb {
25 struct usb_phy phy;
26 struct phy_companion *comparator;
27 struct device *dev;
28 u32 __iomem *control_dev;
29 struct clk *wkupclk;
30 u8 is_suspended:1;
31};
32
33#define PHY_PD 0x1
34
35#define phy_to_omapusb(x) container_of((x), struct omap_usb, phy)
36
37#if defined(CONFIG_OMAP_USB2) || defined(CONFIG_OMAP_USB2_MODULE)
38extern int omap_usb2_set_comparator(struct phy_companion *comparator);
39#else
40static inline int omap_usb2_set_comparator(struct phy_companion *comparator)
41{
42 return -ENODEV;
43}
44#endif
45
46#endif /* __DRIVERS_OMAP_USB_H */
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 45824be0a2f9..e8a5fe87c6bd 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -9,56 +9,7 @@
9#ifndef __LINUX_USB_OTG_H 9#ifndef __LINUX_USB_OTG_H
10#define __LINUX_USB_OTG_H 10#define __LINUX_USB_OTG_H
11 11
12#include <linux/notifier.h> 12#include <linux/usb/phy.h>
13
14/* OTG defines lots of enumeration states before device reset */
15enum usb_otg_state {
16 OTG_STATE_UNDEFINED = 0,
17
18 /* single-role peripheral, and dual-role default-b */
19 OTG_STATE_B_IDLE,
20 OTG_STATE_B_SRP_INIT,
21 OTG_STATE_B_PERIPHERAL,
22
23 /* extra dual-role default-b states */
24 OTG_STATE_B_WAIT_ACON,
25 OTG_STATE_B_HOST,
26
27 /* dual-role default-a */
28 OTG_STATE_A_IDLE,
29 OTG_STATE_A_WAIT_VRISE,
30 OTG_STATE_A_WAIT_BCON,
31 OTG_STATE_A_HOST,
32 OTG_STATE_A_SUSPEND,
33 OTG_STATE_A_PERIPHERAL,
34 OTG_STATE_A_WAIT_VFALL,
35 OTG_STATE_A_VBUS_ERR,
36};
37
38enum usb_phy_events {
39 USB_EVENT_NONE, /* no events or cable disconnected */
40 USB_EVENT_VBUS, /* vbus valid event */
41 USB_EVENT_ID, /* id was grounded */
42 USB_EVENT_CHARGER, /* usb dedicated charger */
43 USB_EVENT_ENUMERATED, /* gadget driver enumerated */
44};
45
46/* associate a type with PHY */
47enum usb_phy_type {
48 USB_PHY_TYPE_UNDEFINED,
49 USB_PHY_TYPE_USB2,
50 USB_PHY_TYPE_USB3,
51};
52
53struct usb_phy;
54
55/* for transceivers connected thru an ULPI interface, the user must
56 * provide access ops
57 */
58struct usb_phy_io_ops {
59 int (*read)(struct usb_phy *x, u32 reg);
60 int (*write)(struct usb_phy *x, u32 val, u32 reg);
61};
62 13
63struct usb_otg { 14struct usb_otg {
64 u8 default_a; 15 u8 default_a;
@@ -85,134 +36,9 @@ struct usb_otg {
85 36
86}; 37};
87 38
88/*
89 * the otg driver needs to interact with both device side and host side
90 * usb controllers. it decides which controller is active at a given
91 * moment, using the transceiver, ID signal, HNP and sometimes static
92 * configuration information (including "board isn't wired for otg").
93 */
94struct usb_phy {
95 struct device *dev;
96 const char *label;
97 unsigned int flags;
98
99 enum usb_phy_type type;
100 enum usb_otg_state state;
101 enum usb_phy_events last_event;
102
103 struct usb_otg *otg;
104
105 struct device *io_dev;
106 struct usb_phy_io_ops *io_ops;
107 void __iomem *io_priv;
108
109 /* for notification of usb_phy_events */
110 struct atomic_notifier_head notifier;
111
112 /* to pass extra port status to the root hub */
113 u16 port_status;
114 u16 port_change;
115
116 /* to support controllers that have multiple transceivers */
117 struct list_head head;
118
119 /* initialize/shutdown the OTG controller */
120 int (*init)(struct usb_phy *x);
121 void (*shutdown)(struct usb_phy *x);
122
123 /* effective for B devices, ignored for A-peripheral */
124 int (*set_power)(struct usb_phy *x,
125 unsigned mA);
126
127 /* for non-OTG B devices: set transceiver into suspend mode */
128 int (*set_suspend)(struct usb_phy *x,
129 int suspend);
130
131 /* notify phy connect status change */
132 int (*notify_connect)(struct usb_phy *x, int port);
133 int (*notify_disconnect)(struct usb_phy *x, int port);
134};
135
136
137/* for board-specific init logic */
138extern int usb_add_phy(struct usb_phy *, enum usb_phy_type type);
139extern void usb_remove_phy(struct usb_phy *);
140
141#if defined(CONFIG_NOP_USB_XCEIV) || (defined(CONFIG_NOP_USB_XCEIV_MODULE) && defined(MODULE))
142/* sometimes transceivers are accessed only through e.g. ULPI */
143extern void usb_nop_xceiv_register(void);
144extern void usb_nop_xceiv_unregister(void);
145#else
146static inline void usb_nop_xceiv_register(void)
147{
148}
149
150static inline void usb_nop_xceiv_unregister(void)
151{
152}
153#endif
154
155/* helpers for direct access thru low-level io interface */
156static inline int usb_phy_io_read(struct usb_phy *x, u32 reg)
157{
158 if (x->io_ops && x->io_ops->read)
159 return x->io_ops->read(x, reg);
160
161 return -EINVAL;
162}
163
164static inline int usb_phy_io_write(struct usb_phy *x, u32 val, u32 reg)
165{
166 if (x->io_ops && x->io_ops->write)
167 return x->io_ops->write(x, val, reg);
168
169 return -EINVAL;
170}
171
172static inline int
173usb_phy_init(struct usb_phy *x)
174{
175 if (x->init)
176 return x->init(x);
177
178 return 0;
179}
180
181static inline void
182usb_phy_shutdown(struct usb_phy *x)
183{
184 if (x->shutdown)
185 x->shutdown(x);
186}
187
188/* for usb host and peripheral controller drivers */
189#ifdef CONFIG_USB_OTG_UTILS 39#ifdef CONFIG_USB_OTG_UTILS
190extern struct usb_phy *usb_get_phy(enum usb_phy_type type);
191extern struct usb_phy *devm_usb_get_phy(struct device *dev,
192 enum usb_phy_type type);
193extern void usb_put_phy(struct usb_phy *);
194extern void devm_usb_put_phy(struct device *dev, struct usb_phy *x);
195extern const char *otg_state_string(enum usb_otg_state state); 40extern const char *otg_state_string(enum usb_otg_state state);
196#else 41#else
197static inline struct usb_phy *usb_get_phy(enum usb_phy_type type)
198{
199 return NULL;
200}
201
202static inline struct usb_phy *devm_usb_get_phy(struct device *dev,
203 enum usb_phy_type type)
204{
205 return NULL;
206}
207
208static inline void usb_put_phy(struct usb_phy *x)
209{
210}
211
212static inline void devm_usb_put_phy(struct device *dev, struct usb_phy *x)
213{
214}
215
216static inline const char *otg_state_string(enum usb_otg_state state) 42static inline const char *otg_state_string(enum usb_otg_state state)
217{ 43{
218 return NULL; 44 return NULL;
@@ -262,42 +88,6 @@ otg_set_peripheral(struct usb_otg *otg, struct usb_gadget *periph)
262} 88}
263 89
264static inline int 90static inline int
265usb_phy_set_power(struct usb_phy *x, unsigned mA)
266{
267 if (x && x->set_power)
268 return x->set_power(x, mA);
269 return 0;
270}
271
272/* Context: can sleep */
273static inline int
274usb_phy_set_suspend(struct usb_phy *x, int suspend)
275{
276 if (x->set_suspend != NULL)
277 return x->set_suspend(x, suspend);
278 else
279 return 0;
280}
281
282static inline int
283usb_phy_notify_connect(struct usb_phy *x, int port)
284{
285 if (x->notify_connect)
286 return x->notify_connect(x, port);
287 else
288 return 0;
289}
290
291static inline int
292usb_phy_notify_disconnect(struct usb_phy *x, int port)
293{
294 if (x->notify_disconnect)
295 return x->notify_disconnect(x, port);
296 else
297 return 0;
298}
299
300static inline int
301otg_start_srp(struct usb_otg *otg) 91otg_start_srp(struct usb_otg *otg)
302{ 92{
303 if (otg && otg->start_srp) 93 if (otg && otg->start_srp)
@@ -306,31 +96,7 @@ otg_start_srp(struct usb_otg *otg)
306 return -ENOTSUPP; 96 return -ENOTSUPP;
307} 97}
308 98
309/* notifiers */
310static inline int
311usb_register_notifier(struct usb_phy *x, struct notifier_block *nb)
312{
313 return atomic_notifier_chain_register(&x->notifier, nb);
314}
315
316static inline void
317usb_unregister_notifier(struct usb_phy *x, struct notifier_block *nb)
318{
319 atomic_notifier_chain_unregister(&x->notifier, nb);
320}
321
322/* for OTG controller drivers (and maybe other stuff) */ 99/* for OTG controller drivers (and maybe other stuff) */
323extern int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num); 100extern int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num);
324 101
325static inline const char *usb_phy_type_string(enum usb_phy_type type)
326{
327 switch (type) {
328 case USB_PHY_TYPE_USB2:
329 return "USB2 PHY";
330 case USB_PHY_TYPE_USB3:
331 return "USB3 PHY";
332 default:
333 return "UNKNOWN PHY TYPE";
334 }
335}
336#endif /* __LINUX_USB_OTG_H */ 102#endif /* __LINUX_USB_OTG_H */
diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
new file mode 100644
index 000000000000..06b5bae35b29
--- /dev/null
+++ b/include/linux/usb/phy.h
@@ -0,0 +1,233 @@
1/* USB OTG (On The Go) defines */
2/*
3 *
4 * These APIs may be used between USB controllers. USB device drivers
5 * (for either host or peripheral roles) don't use these calls; they
6 * continue to use just usb_device and usb_gadget.
7 */
8
9#ifndef __LINUX_USB_PHY_H
10#define __LINUX_USB_PHY_H
11
12#include <linux/notifier.h>
13
14enum usb_phy_events {
15 USB_EVENT_NONE, /* no events or cable disconnected */
16 USB_EVENT_VBUS, /* vbus valid event */
17 USB_EVENT_ID, /* id was grounded */
18 USB_EVENT_CHARGER, /* usb dedicated charger */
19 USB_EVENT_ENUMERATED, /* gadget driver enumerated */
20};
21
22/* associate a type with PHY */
23enum usb_phy_type {
24 USB_PHY_TYPE_UNDEFINED,
25 USB_PHY_TYPE_USB2,
26 USB_PHY_TYPE_USB3,
27};
28
29/* OTG defines lots of enumeration states before device reset */
30enum usb_otg_state {
31 OTG_STATE_UNDEFINED = 0,
32
33 /* single-role peripheral, and dual-role default-b */
34 OTG_STATE_B_IDLE,
35 OTG_STATE_B_SRP_INIT,
36 OTG_STATE_B_PERIPHERAL,
37
38 /* extra dual-role default-b states */
39 OTG_STATE_B_WAIT_ACON,
40 OTG_STATE_B_HOST,
41
42 /* dual-role default-a */
43 OTG_STATE_A_IDLE,
44 OTG_STATE_A_WAIT_VRISE,
45 OTG_STATE_A_WAIT_BCON,
46 OTG_STATE_A_HOST,
47 OTG_STATE_A_SUSPEND,
48 OTG_STATE_A_PERIPHERAL,
49 OTG_STATE_A_WAIT_VFALL,
50 OTG_STATE_A_VBUS_ERR,
51};
52
53struct usb_phy;
54struct usb_otg;
55
56/* for transceivers connected thru an ULPI interface, the user must
57 * provide access ops
58 */
59struct usb_phy_io_ops {
60 int (*read)(struct usb_phy *x, u32 reg);
61 int (*write)(struct usb_phy *x, u32 val, u32 reg);
62};
63
64struct usb_phy {
65 struct device *dev;
66 const char *label;
67 unsigned int flags;
68
69 enum usb_phy_type type;
70 enum usb_otg_state state;
71 enum usb_phy_events last_event;
72
73 struct usb_otg *otg;
74
75 struct device *io_dev;
76 struct usb_phy_io_ops *io_ops;
77 void __iomem *io_priv;
78
79 /* for notification of usb_phy_events */
80 struct atomic_notifier_head notifier;
81
82 /* to pass extra port status to the root hub */
83 u16 port_status;
84 u16 port_change;
85
86 /* to support controllers that have multiple transceivers */
87 struct list_head head;
88
89 /* initialize/shutdown the OTG controller */
90 int (*init)(struct usb_phy *x);
91 void (*shutdown)(struct usb_phy *x);
92
93 /* effective for B devices, ignored for A-peripheral */
94 int (*set_power)(struct usb_phy *x,
95 unsigned mA);
96
97 /* for non-OTG B devices: set transceiver into suspend mode */
98 int (*set_suspend)(struct usb_phy *x,
99 int suspend);
100
101 /* notify phy connect status change */
102 int (*notify_connect)(struct usb_phy *x, int port);
103 int (*notify_disconnect)(struct usb_phy *x, int port);
104};
105
106
107/* for board-specific init logic */
108extern int usb_add_phy(struct usb_phy *, enum usb_phy_type type);
109extern void usb_remove_phy(struct usb_phy *);
110
111/* helpers for direct access thru low-level io interface */
112static inline int usb_phy_io_read(struct usb_phy *x, u32 reg)
113{
114 if (x->io_ops && x->io_ops->read)
115 return x->io_ops->read(x, reg);
116
117 return -EINVAL;
118}
119
120static inline int usb_phy_io_write(struct usb_phy *x, u32 val, u32 reg)
121{
122 if (x->io_ops && x->io_ops->write)
123 return x->io_ops->write(x, val, reg);
124
125 return -EINVAL;
126}
127
128static inline int
129usb_phy_init(struct usb_phy *x)
130{
131 if (x->init)
132 return x->init(x);
133
134 return 0;
135}
136
137static inline void
138usb_phy_shutdown(struct usb_phy *x)
139{
140 if (x->shutdown)
141 x->shutdown(x);
142}
143
144/* for usb host and peripheral controller drivers */
145#ifdef CONFIG_USB_OTG_UTILS
146extern struct usb_phy *usb_get_phy(enum usb_phy_type type);
147extern struct usb_phy *devm_usb_get_phy(struct device *dev,
148 enum usb_phy_type type);
149extern void usb_put_phy(struct usb_phy *);
150extern void devm_usb_put_phy(struct device *dev, struct usb_phy *x);
151#else
152static inline struct usb_phy *usb_get_phy(enum usb_phy_type type)
153{
154 return NULL;
155}
156
157static inline struct usb_phy *devm_usb_get_phy(struct device *dev,
158 enum usb_phy_type type)
159{
160 return NULL;
161}
162
163static inline void usb_put_phy(struct usb_phy *x)
164{
165}
166
167static inline void devm_usb_put_phy(struct device *dev, struct usb_phy *x)
168{
169}
170
171#endif
172
173static inline int
174usb_phy_set_power(struct usb_phy *x, unsigned mA)
175{
176 if (x && x->set_power)
177 return x->set_power(x, mA);
178 return 0;
179}
180
181/* Context: can sleep */
182static inline int
183usb_phy_set_suspend(struct usb_phy *x, int suspend)
184{
185 if (x->set_suspend != NULL)
186 return x->set_suspend(x, suspend);
187 else
188 return 0;
189}
190
191static inline int
192usb_phy_notify_connect(struct usb_phy *x, int port)
193{
194 if (x->notify_connect)
195 return x->notify_connect(x, port);
196 else
197 return 0;
198}
199
200static inline int
201usb_phy_notify_disconnect(struct usb_phy *x, int port)
202{
203 if (x->notify_disconnect)
204 return x->notify_disconnect(x, port);
205 else
206 return 0;
207}
208
209/* notifiers */
210static inline int
211usb_register_notifier(struct usb_phy *x, struct notifier_block *nb)
212{
213 return atomic_notifier_chain_register(&x->notifier, nb);
214}
215
216static inline void
217usb_unregister_notifier(struct usb_phy *x, struct notifier_block *nb)
218{
219 atomic_notifier_chain_unregister(&x->notifier, nb);
220}
221
222static inline const char *usb_phy_type_string(enum usb_phy_type type)
223{
224 switch (type) {
225 case USB_PHY_TYPE_USB2:
226 return "USB2 PHY";
227 case USB_PHY_TYPE_USB3:
228 return "USB3 PHY";
229 default:
230 return "UNKNOWN PHY TYPE";
231 }
232}
233#endif /* __LINUX_USB_PHY_H */
diff --git a/include/linux/usb/phy_companion.h b/include/linux/usb/phy_companion.h
new file mode 100644
index 000000000000..edd2ec23d282
--- /dev/null
+++ b/include/linux/usb/phy_companion.h
@@ -0,0 +1,34 @@
1/*
2 * phy-companion.h -- phy companion to indicate the comparator part of PHY
3 *
4 * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * Author: Kishon Vijay Abraham I <kishon@ti.com>
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 */
18
19#ifndef __DRIVERS_PHY_COMPANION_H
20#define __DRIVERS_PHY_COMPANION_H
21
22#include <linux/usb/otg.h>
23
24/* phy_companion to take care of VBUS, ID and srp capabilities */
25struct phy_companion {
26
27 /* effective for A-peripheral, ignored for B devices */
28 int (*set_vbus)(struct phy_companion *x, bool enabled);
29
30 /* for B devices only: start session with A-Host */
31 int (*start_srp)(struct phy_companion *x);
32};
33
34#endif /* __DRIVERS_PHY_COMPANION_H */
diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h
new file mode 100644
index 000000000000..176b1ca06ae4
--- /dev/null
+++ b/include/linux/usb/tegra_usb_phy.h
@@ -0,0 +1,80 @@
1/*
2 * Copyright (C) 2010 Google, Inc.
3 *
4 * This software is licensed under the terms of the GNU General Public
5 * License version 2, as published by the Free Software Foundation, and
6 * may be copied, distributed, and modified under those terms.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 */
14
15#ifndef __TEGRA_USB_PHY_H
16#define __TEGRA_USB_PHY_H
17
18#include <linux/clk.h>
19#include <linux/usb/otg.h>
20
21struct tegra_utmip_config {
22 u8 hssync_start_delay;
23 u8 elastic_limit;
24 u8 idle_wait_delay;
25 u8 term_range_adj;
26 u8 xcvr_setup;
27 u8 xcvr_lsfslew;
28 u8 xcvr_lsrslew;
29};
30
31struct tegra_ulpi_config {
32 int reset_gpio;
33 const char *clk;
34};
35
36enum tegra_usb_phy_port_speed {
37 TEGRA_USB_PHY_PORT_SPEED_FULL = 0,
38 TEGRA_USB_PHY_PORT_SPEED_LOW,
39 TEGRA_USB_PHY_PORT_SPEED_HIGH,
40};
41
42enum tegra_usb_phy_mode {
43 TEGRA_USB_PHY_MODE_DEVICE,
44 TEGRA_USB_PHY_MODE_HOST,
45};
46
47struct tegra_xtal_freq;
48
49struct tegra_usb_phy {
50 int instance;
51 const struct tegra_xtal_freq *freq;
52 void __iomem *regs;
53 void __iomem *pad_regs;
54 struct clk *clk;
55 struct clk *pll_u;
56 struct clk *pad_clk;
57 enum tegra_usb_phy_mode mode;
58 void *config;
59 struct usb_phy *ulpi;
60 struct usb_phy u_phy;
61 struct device *dev;
62};
63
64struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
65 void __iomem *regs, void *config, enum tegra_usb_phy_mode phy_mode);
66
67void tegra_usb_phy_clk_disable(struct tegra_usb_phy *phy);
68
69void tegra_usb_phy_clk_enable(struct tegra_usb_phy *phy);
70
71void tegra_usb_phy_preresume(struct tegra_usb_phy *phy);
72
73void tegra_usb_phy_postresume(struct tegra_usb_phy *phy);
74
75void tegra_ehci_phy_restore_start(struct tegra_usb_phy *phy,
76 enum tegra_usb_phy_port_speed port_speed);
77
78void tegra_ehci_phy_restore_end(struct tegra_usb_phy *phy);
79
80#endif /* __TEGRA_USB_PHY_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-23 16:46:52 -0500