diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index d9440a18bd006a8ed9a889142e91624067875d04..cf6ea9f318fb8099d6117d40858e3d6ed7e9e388 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -63,7 +63,7 @@ static struct powerdomain *mpu_pwrdm;
  */
 static int prcm_clear_mod_irqs(s16 module, u8 regs)
 {
-	u32 wkst, fclk, iclk;
+	u32 wkst, fclk, iclk, clken;
 	u16 wkst_off = (regs == 3) ? OMAP3430ES2_PM_WKST3 : PM_WKST1;
 	u16 fclk_off = (regs == 3) ? OMAP3430ES2_CM_FCLKEN3 : CM_FCLKEN1;
 	u16 iclk_off = (regs == 3) ? CM_ICLKEN3 : CM_ICLKEN1;
@@ -77,8 +77,15 @@ static int prcm_clear_mod_irqs(s16 module, u8 regs)
 		iclk = cm_read_mod_reg(module, iclk_off);
 		fclk = cm_read_mod_reg(module, fclk_off);
 		while (wkst) {
-			cm_set_mod_reg_bits(wkst, module, iclk_off);
-			cm_set_mod_reg_bits(wkst, module, fclk_off);
+			clken = wkst;
+			cm_set_mod_reg_bits(clken, module, iclk_off);
+			/*
+			 * For USBHOST, we don't know whether HOST1 or
+			 * HOST2 woke us up, so enable both f-clocks
+			 */
+			if (module == OMAP3430ES2_USBHOST_MOD)
+				clken |= 1 << OMAP3430ES2_EN_USBHOST2_SHIFT;
+			cm_set_mod_reg_bits(clken, module, fclk_off);
 			prm_write_mod_reg(wkst, module, wkst_off);
 			wkst = prm_read_mod_reg(module, wkst_off);
 			c++;