aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/i2c/chips/isp1301_omap.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/i2c/chips/isp1301_omap.c')
-rw-r--r--drivers/i2c/chips/isp1301_omap.c65
1 files changed, 47 insertions, 18 deletions
diff --git a/drivers/i2c/chips/isp1301_omap.c b/drivers/i2c/chips/isp1301_omap.c
index 28902ebd553..e0d56ef2bcb 100644
--- a/drivers/i2c/chips/isp1301_omap.c
+++ b/drivers/i2c/chips/isp1301_omap.c
@@ -25,6 +25,7 @@
25#include <linux/slab.h> 25#include <linux/slab.h>
26#include <linux/interrupt.h> 26#include <linux/interrupt.h>
27#include <linux/platform_device.h> 27#include <linux/platform_device.h>
28#include <linux/gpio.h>
28#include <linux/usb/ch9.h> 29#include <linux/usb/ch9.h>
29#include <linux/usb/gadget.h> 30#include <linux/usb/gadget.h>
30#include <linux/usb.h> 31#include <linux/usb.h>
@@ -33,7 +34,10 @@
33#include <linux/workqueue.h> 34#include <linux/workqueue.h>
34 35
35#include <asm/irq.h> 36#include <asm/irq.h>
37#include <asm/mach-types.h>
38
36#include <mach/usb.h> 39#include <mach/usb.h>
40#include <mach/mux.h>
37 41
38 42
39#ifndef DEBUG 43#ifndef DEBUG
@@ -88,14 +92,9 @@ struct isp1301 {
88 92
89/*-------------------------------------------------------------------------*/ 93/*-------------------------------------------------------------------------*/
90 94
91#ifdef CONFIG_MACH_OMAP_H2
92
93/* board-specific PM hooks */ 95/* board-specific PM hooks */
94 96
95#include <asm/gpio.h> 97#if defined(CONFIG_MACH_OMAP_H2) || defined(CONFIG_MACH_OMAP_H3)
96#include <mach/mux.h>
97#include <asm/mach-types.h>
98
99 98
100#if defined(CONFIG_TPS65010) || defined(CONFIG_TPS65010_MODULE) 99#if defined(CONFIG_TPS65010) || defined(CONFIG_TPS65010_MODULE)
101 100
@@ -135,6 +134,33 @@ static inline void notresponding(struct isp1301 *isp)
135 134
136#endif 135#endif
137 136
137#if defined(CONFIG_MACH_OMAP_H4)
138
139static void enable_vbus_draw(struct isp1301 *isp, unsigned mA)
140{
141 /* H4 controls this by DIP switch S2.4; no soft control.
142 * ON means the charger is always enabled. Leave it OFF
143 * unless the OTG port is used only in B-peripheral mode.
144 */
145}
146
147static void enable_vbus_source(struct isp1301 *isp)
148{
149 /* this board won't supply more than 8mA vbus power.
150 * some boards can switch a 100ma "unit load" (or more).
151 */
152}
153
154
155/* products will deliver OTG messages with LEDs, GUI, etc */
156static inline void notresponding(struct isp1301 *isp)
157{
158 printk(KERN_NOTICE "OTG device not responding.\n");
159}
160
161
162#endif
163
138/*-------------------------------------------------------------------------*/ 164/*-------------------------------------------------------------------------*/
139 165
140static struct i2c_driver isp1301_driver; 166static struct i2c_driver isp1301_driver;
@@ -334,8 +360,7 @@ static int gadget_suspend(struct isp1301 *isp)
334 * NOTE: guaranteeing certain response times might mean we shouldn't 360 * NOTE: guaranteeing certain response times might mean we shouldn't
335 * share keventd's work queue; a realtime task might be safest. 361 * share keventd's work queue; a realtime task might be safest.
336 */ 362 */
337void 363static void isp1301_defer_work(struct isp1301 *isp, int work)
338isp1301_defer_work(struct isp1301 *isp, int work)
339{ 364{
340 int status; 365 int status;
341 366
@@ -512,7 +537,6 @@ static void update_otg1(struct isp1301 *isp, u8 int_src)
512 otg_ctrl &= ~OTG_XCEIV_INPUTS; 537 otg_ctrl &= ~OTG_XCEIV_INPUTS;
513 otg_ctrl &= ~(OTG_ID|OTG_ASESSVLD|OTG_VBUSVLD); 538 otg_ctrl &= ~(OTG_ID|OTG_ASESSVLD|OTG_VBUSVLD);
514 539
515
516 if (int_src & INTR_SESS_VLD) 540 if (int_src & INTR_SESS_VLD)
517 otg_ctrl |= OTG_ASESSVLD; 541 otg_ctrl |= OTG_ASESSVLD;
518 else if (isp->otg.state == OTG_STATE_A_WAIT_VFALL) { 542 else if (isp->otg.state == OTG_STATE_A_WAIT_VFALL) {
@@ -886,11 +910,11 @@ static int otg_probe(struct platform_device *dev)
886 910
887static int otg_remove(struct platform_device *dev) 911static int otg_remove(struct platform_device *dev)
888{ 912{
889 otg_dev = 0; 913 otg_dev = NULL;
890 return 0; 914 return 0;
891} 915}
892 916
893struct platform_driver omap_otg_driver = { 917static struct platform_driver omap_otg_driver = {
894 .probe = otg_probe, 918 .probe = otg_probe,
895 .remove = otg_remove, 919 .remove = otg_remove,
896 .driver = { 920 .driver = {
@@ -1212,6 +1236,8 @@ static void isp1301_release(struct device *dev)
1212 1236
1213 isp = dev_get_drvdata(dev); 1237 isp = dev_get_drvdata(dev);
1214 1238
1239 /* FIXME -- not with a "new style" driver, it doesn't!! */
1240
1215 /* ugly -- i2c hijacks our memory hook to wait_for_completion() */ 1241 /* ugly -- i2c hijacks our memory hook to wait_for_completion() */
1216 if (isp->i2c_release) 1242 if (isp->i2c_release)
1217 isp->i2c_release(dev); 1243 isp->i2c_release(dev);
@@ -1233,7 +1259,7 @@ static int __exit isp1301_remove(struct i2c_client *i2c)
1233 otg_unbind(isp); 1259 otg_unbind(isp);
1234#endif 1260#endif
1235 if (machine_is_omap_h2()) 1261 if (machine_is_omap_h2())
1236 omap_free_gpio(2); 1262 gpio_free(2);
1237 1263
1238 isp->timer.data = 0; 1264 isp->timer.data = 0;
1239 set_bit(WORK_STOP, &isp->todo); 1265 set_bit(WORK_STOP, &isp->todo);
@@ -1241,7 +1267,7 @@ static int __exit isp1301_remove(struct i2c_client *i2c)
1241 flush_scheduled_work(); 1267 flush_scheduled_work();
1242 1268
1243 put_device(&i2c->dev); 1269 put_device(&i2c->dev);
1244 the_transceiver = 0; 1270 the_transceiver = NULL;
1245 1271
1246 return 0; 1272 return 0;
1247} 1273}
@@ -1295,7 +1321,7 @@ isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host)
1295 if (!host) { 1321 if (!host) {
1296 omap_writew(0, OTG_IRQ_EN); 1322 omap_writew(0, OTG_IRQ_EN);
1297 power_down(isp); 1323 power_down(isp);
1298 isp->otg.host = 0; 1324 isp->otg.host = NULL;
1299 return 0; 1325 return 0;
1300 } 1326 }
1301 1327
@@ -1344,7 +1370,9 @@ static int
1344isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget) 1370isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget)
1345{ 1371{
1346 struct isp1301 *isp = container_of(otg, struct isp1301, otg); 1372 struct isp1301 *isp = container_of(otg, struct isp1301, otg);
1373#ifndef CONFIG_USB_OTG
1347 u32 l; 1374 u32 l;
1375#endif
1348 1376
1349 if (!otg || isp != the_transceiver) 1377 if (!otg || isp != the_transceiver)
1350 return -ENODEV; 1378 return -ENODEV;
@@ -1354,7 +1382,7 @@ isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget)
1354 if (!isp->otg.default_a) 1382 if (!isp->otg.default_a)
1355 enable_vbus_draw(isp, 0); 1383 enable_vbus_draw(isp, 0);
1356 usb_gadget_vbus_disconnect(isp->otg.gadget); 1384 usb_gadget_vbus_disconnect(isp->otg.gadget);
1357 isp->otg.gadget = 0; 1385 isp->otg.gadget = NULL;
1358 power_down(isp); 1386 power_down(isp);
1359 return 0; 1387 return 0;
1360 } 1388 }
@@ -1379,7 +1407,7 @@ isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget)
1379 power_up(isp); 1407 power_up(isp);
1380 isp->otg.state = OTG_STATE_B_IDLE; 1408 isp->otg.state = OTG_STATE_B_IDLE;
1381 1409
1382 if (machine_is_omap_h2()) 1410 if (machine_is_omap_h2() || machine_is_omap_h3())
1383 isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0); 1411 isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
1384 1412
1385 isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING, 1413 isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING,
@@ -1499,7 +1527,8 @@ isp1301_start_hnp(struct otg_transceiver *dev)
1499 1527
1500/*-------------------------------------------------------------------------*/ 1528/*-------------------------------------------------------------------------*/
1501 1529
1502static int __init isp1301_probe(struct i2c_client *i2c) 1530static int __init
1531isp1301_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
1503{ 1532{
1504 int status; 1533 int status;
1505 struct isp1301 *isp; 1534 struct isp1301 *isp;
@@ -1647,7 +1676,7 @@ module_init(isp_init);
1647static void __exit isp_exit(void) 1676static void __exit isp_exit(void)
1648{ 1677{
1649 if (the_transceiver) 1678 if (the_transceiver)
1650 otg_set_transceiver(0); 1679 otg_set_transceiver(NULL);
1651 i2c_del_driver(&isp1301_driver); 1680 i2c_del_driver(&isp1301_driver);
1652} 1681}
1653module_exit(isp_exit); 1682module_exit(isp_exit);