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Revert "USB: musb: blackfin: pm: make it work"
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This reverts commit 1e393c6.

Needed to properly merge the musb changes that are in the
usb-next branch into Linus's tree.

Acked-by: Felipe Balbi <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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gregkh committed Dec 16, 2010
1 parent b0c3844 commit 224acb1
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Showing 2 changed files with 24 additions and 50 deletions.
72 changes: 23 additions & 49 deletions drivers/usb/musb/blackfin.c
Original file line number Diff line number Diff line change
Expand Up @@ -324,8 +324,30 @@ int musb_platform_set_mode(struct musb *musb, u8 musb_mode)
return -EIO;
}

static void musb_platform_reg_init(struct musb *musb)
int __init musb_platform_init(struct musb *musb, void *board_data)
{

/*
* Rev 1.0 BF549 EZ-KITs require PE7 to be high for both DEVICE
* and OTG HOST modes, while rev 1.1 and greater require PE7 to
* be low for DEVICE mode and high for HOST mode. We set it high
* here because we are in host mode
*/

if (gpio_request(musb->config->gpio_vrsel, "USB_VRSEL")) {
printk(KERN_ERR "Failed ro request USB_VRSEL GPIO_%d \n",
musb->config->gpio_vrsel);
return -ENODEV;
}
gpio_direction_output(musb->config->gpio_vrsel, 0);

usb_nop_xceiv_register();
musb->xceiv = otg_get_transceiver();
if (!musb->xceiv) {
gpio_free(musb->config->gpio_vrsel);
return -ENODEV;
}

if (ANOMALY_05000346) {
bfin_write_USB_APHY_CALIB(ANOMALY_05000346_value);
SSYNC();
Expand Down Expand Up @@ -360,33 +382,6 @@ static void musb_platform_reg_init(struct musb *musb)
EP2_RX_ENA | EP3_RX_ENA | EP4_RX_ENA |
EP5_RX_ENA | EP6_RX_ENA | EP7_RX_ENA);
SSYNC();
}

int __init musb_platform_init(struct musb *musb, void *board_data)
{

/*
* Rev 1.0 BF549 EZ-KITs require PE7 to be high for both DEVICE
* and OTG HOST modes, while rev 1.1 and greater require PE7 to
* be low for DEVICE mode and high for HOST mode. We set it high
* here because we are in host mode
*/

if (gpio_request(musb->config->gpio_vrsel, "USB_VRSEL")) {
printk(KERN_ERR "Failed ro request USB_VRSEL GPIO_%d\n",
musb->config->gpio_vrsel);
return -ENODEV;
}
gpio_direction_output(musb->config->gpio_vrsel, 0);

usb_nop_xceiv_register();
musb->xceiv = otg_get_transceiver();
if (!musb->xceiv) {
gpio_free(musb->config->gpio_vrsel);
return -ENODEV;
}

musb_platform_reg_init(musb);

if (is_host_enabled(musb)) {
musb->board_set_vbus = bfin_set_vbus;
Expand All @@ -401,27 +396,6 @@ int __init musb_platform_init(struct musb *musb, void *board_data)
return 0;
}

#ifdef CONFIG_PM
void musb_platform_save_context(struct musb *musb,
struct musb_context_registers *musb_context)
{
if (is_host_active(musb))
/*
* During hibernate gpio_vrsel will change from high to low
* low which will generate wakeup event resume the system
* immediately. Set it to 0 before hibernate to avoid this
* wakeup event.
*/
gpio_set_value(musb->config->gpio_vrsel, 0);
}

void musb_platform_restore_context(struct musb *musb,
struct musb_context_registers *musb_context)
{
musb_platform_reg_init(musb);
}
#endif

int musb_platform_exit(struct musb *musb)
{
gpio_free(musb->config->gpio_vrsel);
Expand Down
2 changes: 1 addition & 1 deletion drivers/usb/musb/musb_core.h
Original file line number Diff line number Diff line change
Expand Up @@ -487,7 +487,7 @@ struct musb_context_registers {
};

#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_BLACKFIN)
defined(CONFIG_ARCH_OMAP4)
extern void musb_platform_save_context(struct musb *musb,
struct musb_context_registers *musb_context);
extern void musb_platform_restore_context(struct musb *musb,
Expand Down

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