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usb: dwc2: Initialize the USB core for peripheral mode 

Initialize the USB driver to peripheral mode when a B-Device connector
is attached.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Dinh Nguyen 2014-11-11 11:13:36 -06:00 committed by Felipe Balbi
parent bcc06078ba
commit 510ffaa48e
3 changed files with 8 additions and 2 deletions
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4
drivers/usb/dwc2/core.h
View File

@ -966,6 +966,8 @@ extern int s3c_hsotg_remove(struct dwc2_hsotg *hsotg);
extern int s3c_hsotg_suspend(struct dwc2_hsotg *dwc2);
extern int s3c_hsotg_resume(struct dwc2_hsotg *dwc2);
extern int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq);
extern void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *dwc2);
extern void s3c_hsotg_core_connect(struct dwc2_hsotg *hsotg);
#else
static inline int s3c_hsotg_remove(struct dwc2_hsotg *dwc2)
{ return 0; }
@ -975,6 +977,8 @@ static inline int s3c_hsotg_resume(struct dwc2_hsotg *dwc2)
{ return 0; }
static inline int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq)
{ return 0; }
static inline void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *dwc2) {}
static inline void s3c_hsotg_core_connect(struct dwc2_hsotg *hsotg) {}
#endif
#if IS_ENABLED(CONFIG_USB_DWC2_HOST) || IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)

4
drivers/usb/dwc2/gadget.c
View File

@ -2125,7 +2125,7 @@ static int s3c_hsotg_corereset(struct dwc2_hsotg *hsotg)
*
* Issue a soft reset to the core, and await the core finishing it.
*/
static void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg)
void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg)
{
s3c_hsotg_corereset(hsotg);
@ -2257,7 +2257,7 @@ static void s3c_hsotg_core_disconnect(struct dwc2_hsotg *hsotg)
__orr32(hsotg->regs + DCTL, DCTL_SFTDISCON);
}
static void s3c_hsotg_core_connect(struct dwc2_hsotg *hsotg)
void s3c_hsotg_core_connect(struct dwc2_hsotg *hsotg)
{
/* remove the soft-disconnect and let's go */
__bic32(hsotg->regs + DCTL, DCTL_SFTDISCON);

2
drivers/usb/dwc2/hcd.c
View File

@ -1371,6 +1371,8 @@ static void dwc2_conn_id_status_change(struct work_struct *work)
hsotg->op_state = OTG_STATE_B_PERIPHERAL;
dwc2_core_init(hsotg, false, -1);
dwc2_enable_global_interrupts(hsotg);
s3c_hsotg_core_init_disconnected(hsotg);
s3c_hsotg_core_connect(hsotg);
} else {
/* A-Device connector (Host Mode) */
dev_dbg(hsotg->dev, "connId A\n");