Commit 4b5faa7a authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: dwc3: omap: set idle and standby modes 



For now, let's disable IDLE and STANDBY transitions
until we have a real HW to validate against.

Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 55f3fba6

drivers/usb/dwc3/dwc3-omap.c

+24 −0
Original line number Diff line number Diff line
@@ -76,8 +76,23 @@ 
/* SYSCONFIG REGISTER */

#define USBOTGSS_SYSCONFIG_DMADISABLE		(1 << 16)

#define USBOTGSS_SYSCONFIG_STANDBYMODE(x)	((x) << 4)



#define USBOTGSS_STANDBYMODE_FORCE_STANDBY	0

#define USBOTGSS_STANDBYMODE_NO_STANDBY		1

#define USBOTGSS_STANDBYMODE_SMART_STANDBY	2

#define USBOTGSS_STANDBYMODE_SMART_WAKEUP	3



#define USBOTGSS_STANDBYMODE_MASK		(0x03 << 4)



#define USBOTGSS_SYSCONFIG_IDLEMODE(x)		((x) << 2)



#define USBOTGSS_IDLEMODE_FORCE_IDLE		0

#define USBOTGSS_IDLEMODE_NO_IDLE		1

#define USBOTGSS_IDLEMODE_SMART_IDLE		2

#define USBOTGSS_IDLEMODE_SMART_WAKEUP		3



#define USBOTGSS_IDLEMODE_MASK			(0x03 << 2)



/* IRQ_EOI REGISTER */

#define USBOTGSS_IRQ_EOI_LINE_NUMBER		(1 << 0)
@@ -270,6 +285,15 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev) 
	reg = dwc3_readl(omap->base, USBOTGSS_SYSCONFIG);

	omap->dma_status = !!(reg & USBOTGSS_SYSCONFIG_DMADISABLE);



	/* Set No-Idle and No-Standby */

	reg &= ~(USBOTGSS_STANDBYMODE_MASK

			| USBOTGSS_IDLEMODE_MASK);



	reg |= (USBOTGSS_SYSCONFIG_STANDBYMODE(USBOTGSS_STANDBYMODE_NO_STANDBY)

		| USBOTGSS_SYSCONFIG_IDLEMODE(USBOTGSS_IDLEMODE_NO_IDLE));



	dwc3_writel(omap->base, USBOTGSS_SYSCONFIG, reg);



	ret = request_irq(omap->irq, dwc3_omap_interrupt, 0,

			"dwc3-omap", omap);

	if (ret) {