1 files changed, 15 insertions, 3 deletions

diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 154bcf1b5dfa..48bc09e7b83b 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -868,9 +868,15 @@ static int dsps_suspend(struct device *dev)
         struct dsps_glue *glue = dev_get_drvdata(dev);
         const struct dsps_musb_wrapper *wrp = glue->wrp;
         struct musb *musb = platform_get_drvdata(glue->musb);
-        void __iomem *mbase = musb->ctrl_base;
+        void __iomem *mbase;
 
         del_timer_sync(&glue->timer);
+
+        if (!musb)
+                /* This can happen if the musb device is in -EPROBE_DEFER */
+                return 0;
+
+        mbase = musb->ctrl_base;
         glue->context.control = dsps_readl(mbase, wrp->control);
         glue->context.epintr = dsps_readl(mbase, wrp->epintr_set);
         glue->context.coreintr = dsps_readl(mbase, wrp->coreintr_set);
@@ -887,8 +893,12 @@ static int dsps_resume(struct device *dev)
         struct dsps_glue *glue = dev_get_drvdata(dev);
         const struct dsps_musb_wrapper *wrp = glue->wrp;
         struct musb *musb = platform_get_drvdata(glue->musb);
-        void __iomem *mbase = musb->ctrl_base;
+        void __iomem *mbase;
+
+        if (!musb)
+                return 0;
 
+        mbase = musb->ctrl_base;
         dsps_writel(mbase, wrp->control, glue->context.control);
         dsps_writel(mbase, wrp->epintr_set, glue->context.epintr);
         dsps_writel(mbase, wrp->coreintr_set, glue->context.coreintr);
@@ -896,7 +906,9 @@ static int dsps_resume(struct device *dev)
         dsps_writel(mbase, wrp->mode, glue->context.mode);
         dsps_writel(mbase, wrp->tx_mode, glue->context.tx_mode);
         dsps_writel(mbase, wrp->rx_mode, glue->context.rx_mode);
-        setup_timer(&glue->timer, otg_timer, (unsigned long) musb);
+        if (musb->xceiv->state == OTG_STATE_B_IDLE &&
+            musb->port_mode == MUSB_PORT_MODE_DUAL_ROLE)
+                mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ);
 
         return 0;
 }