diff options
Diffstat (limited to 'drivers/i2c/chips')
| -rw-r--r-- | drivers/i2c/chips/isp1301_omap.c | 65 |
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 @@ #include <linux/slab.h> #include <linux/interrupt.h> #include <linux/platform_device.h> +#include <linux/gpio.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> #include <linux/usb.h> @@ -33,7 +34,10 @@ #include <linux/workqueue.h> #include <asm/irq.h> +#include <asm/mach-types.h> + #include <mach/usb.h> +#include <mach/mux.h> #ifndef DEBUG @@ -88,14 +92,9 @@ struct isp1301 { /*-------------------------------------------------------------------------*/ -#ifdef CONFIG_MACH_OMAP_H2 - /* board-specific PM hooks */ -#include <asm/gpio.h> -#include <mach/mux.h> -#include <asm/mach-types.h> - +#if defined(CONFIG_MACH_OMAP_H2) || defined(CONFIG_MACH_OMAP_H3) #if defined(CONFIG_TPS65010) || defined(CONFIG_TPS65010_MODULE) @@ -135,6 +134,33 @@ static inline void notresponding(struct isp1301 *isp) #endif +#if defined(CONFIG_MACH_OMAP_H4) + +static void enable_vbus_draw(struct isp1301 *isp, unsigned mA) +{ + /* H4 controls this by DIP switch S2.4; no soft control. + * ON means the charger is always enabled. Leave it OFF + * unless the OTG port is used only in B-peripheral mode. + */ +} + +static void enable_vbus_source(struct isp1301 *isp) +{ + /* this board won't supply more than 8mA vbus power. + * some boards can switch a 100ma "unit load" (or more). + */ +} + + +/* products will deliver OTG messages with LEDs, GUI, etc */ +static inline void notresponding(struct isp1301 *isp) +{ + printk(KERN_NOTICE "OTG device not responding.\n"); +} + + +#endif + /*-------------------------------------------------------------------------*/ static struct i2c_driver isp1301_driver; @@ -334,8 +360,7 @@ static int gadget_suspend(struct isp1301 *isp) * NOTE: guaranteeing certain response times might mean we shouldn't * share keventd's work queue; a realtime task might be safest. */ -void -isp1301_defer_work(struct isp1301 *isp, int work) +static void isp1301_defer_work(struct isp1301 *isp, int work) { int status; @@ -512,7 +537,6 @@ static void update_otg1(struct isp1301 *isp, u8 int_src) otg_ctrl &= ~OTG_XCEIV_INPUTS; otg_ctrl &= ~(OTG_ID|OTG_ASESSVLD|OTG_VBUSVLD); - if (int_src & INTR_SESS_VLD) otg_ctrl |= OTG_ASESSVLD; else if (isp->otg.state == OTG_STATE_A_WAIT_VFALL) { @@ -886,11 +910,11 @@ static int otg_probe(struct platform_device *dev) static int otg_remove(struct platform_device *dev) { - otg_dev = 0; + otg_dev = NULL; return 0; } -struct platform_driver omap_otg_driver = { +static struct platform_driver omap_otg_driver = { .probe = otg_probe, .remove = otg_remove, .driver = { @@ -1212,6 +1236,8 @@ static void isp1301_release(struct device *dev) isp = dev_get_drvdata(dev); + /* FIXME -- not with a "new style" driver, it doesn't!! */ + /* ugly -- i2c hijacks our memory hook to wait_for_completion() */ if (isp->i2c_release) isp->i2c_release(dev); @@ -1233,7 +1259,7 @@ static int __exit isp1301_remove(struct i2c_client *i2c) otg_unbind(isp); #endif if (machine_is_omap_h2()) - omap_free_gpio(2); + gpio_free(2); isp->timer.data = 0; set_bit(WORK_STOP, &isp->todo); @@ -1241,7 +1267,7 @@ static int __exit isp1301_remove(struct i2c_client *i2c) flush_scheduled_work(); put_device(&i2c->dev); - the_transceiver = 0; + the_transceiver = NULL; return 0; } @@ -1295,7 +1321,7 @@ isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host) if (!host) { omap_writew(0, OTG_IRQ_EN); power_down(isp); - isp->otg.host = 0; + isp->otg.host = NULL; return 0; } @@ -1344,7 +1370,9 @@ static int isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget) { struct isp1301 *isp = container_of(otg, struct isp1301, otg); +#ifndef CONFIG_USB_OTG u32 l; +#endif if (!otg || isp != the_transceiver) return -ENODEV; @@ -1354,7 +1382,7 @@ isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget) if (!isp->otg.default_a) enable_vbus_draw(isp, 0); usb_gadget_vbus_disconnect(isp->otg.gadget); - isp->otg.gadget = 0; + isp->otg.gadget = NULL; power_down(isp); return 0; } @@ -1379,7 +1407,7 @@ isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget) power_up(isp); isp->otg.state = OTG_STATE_B_IDLE; - if (machine_is_omap_h2()) + if (machine_is_omap_h2() || machine_is_omap_h3()) isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0); isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING, @@ -1499,7 +1527,8 @@ isp1301_start_hnp(struct otg_transceiver *dev) /*-------------------------------------------------------------------------*/ -static int __init isp1301_probe(struct i2c_client *i2c) +static int __init +isp1301_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { int status; struct isp1301 *isp; @@ -1647,7 +1676,7 @@ module_init(isp_init); static void __exit isp_exit(void) { if (the_transceiver) - otg_set_transceiver(0); + otg_set_transceiver(NULL); i2c_del_driver(&isp1301_driver); } module_exit(isp_exit); |