---

yaml
---
r: 155372
b: refs/heads/master
c: d163ef2
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6bc2146e2b01654534a1cae127ef96bf4b5f3d53
+refs/heads/master: d163ef248385fc434e44b04a5151ae5d6a6c2d16

trunk/drivers/usb/musb/davinci.c

@@ -35,6 +35,7 @@
 #include <mach/hardware.h>
 #include <mach/memory.h>
 #include <mach/gpio.h>
+#include <mach/cputype.h>
 
 #include <asm/mach-types.h>
 
@@ -411,6 +412,21 @@ int __init musb_platform_init(struct musb *musb)
 		__raw_writel(phy_ctrl, USB_PHY_CTRL);
 	}
 
+	/* On dm355, the default-A state machine needs DRVVBUS control.
+	 * If we won't be a host, there's no need to turn it on.
+	 */
+	if (cpu_is_davinci_dm355()) {
+		u32	deepsleep = __raw_readl(DM355_DEEPSLEEP);
+
+		if (is_host_enabled(musb)) {
+			deepsleep &= ~DRVVBUS_OVERRIDE;
+		} else {
+			deepsleep &= ~DRVVBUS_FORCE;
+			deepsleep |= DRVVBUS_OVERRIDE;
+		}
+		__raw_writel(deepsleep, DM355_DEEPSLEEP);
+	}
+
 	/* reset the controller */
 	musb_writel(tibase, DAVINCI_USB_CTRL_REG, 0x1);
 
@@ -437,6 +453,15 @@ int musb_platform_exit(struct musb *musb)
 	if (is_host_enabled(musb))
 		del_timer_sync(&otg_workaround);
 
+	/* force VBUS off */
+	if (cpu_is_davinci_dm355()) {
+		u32	deepsleep = __raw_readl(DM355_DEEPSLEEP);
+
+		deepsleep &= ~DRVVBUS_FORCE;
+		deepsleep |= DRVVBUS_OVERRIDE;
+		__raw_writel(deepsleep, DM355_DEEPSLEEP);
+	}
+
 	davinci_source_power(musb, 0 /*off*/, 1);
 
 	/* delay, to avoid problems with module reload */