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authorFelipe Balbi <balbi@ti.com>2011-09-06 10:56:51 +0300
committerFelipe Balbi <balbi@ti.com>2011-09-09 13:05:30 +0300
commit4b5faa7aca64099d116db93d791b7a1f5c556c4a (patch)
tree42b4c6c9d233576572e75a71492c281b1df8f05d /drivers/usb/dwc3
parent55f3fba6c822f05b02f06070efaadf0300b5f9f1 (diff)
downloadop-kernel-dev-4b5faa7aca64099d116db93d791b7a1f5c556c4a.zip
op-kernel-dev-4b5faa7aca64099d116db93d791b7a1f5c556c4a.tar.gz
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: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3')
-rw-r--r--drivers/usb/dwc3/dwc3-omap.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 421b5db..72cc92b 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -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) {
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