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i2c/isp1301_omap: Build fixes

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Build fixes for isp1301_omap; no behavior changes:

  - fix incorrect probe() signature (it changed many months ago)
  - provide missing functions on H3 and H4 boards
  - "sparse" fixes (static, NULL-vs-0)

The H3 build bits subset some of the stuff that was previously in
the OMAP tree but never went to mainline.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
David Brownell 2008-11-28 15:24:38 +01:00 committed by Jean Delvare
parent ed313489ba
commit d1846b0e7a
1 changed files with 47 additions and 18 deletions
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65
drivers/i2c/chips/isp1301_omap.c
View file

@ -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)
@ -133,6 +132,33 @@ 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
/*-------------------------------------------------------------------------*/
@ -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);