diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ehci-tegra.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 21c58dfb9035..262bbb01228b 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -35,7 +35,6 @@ struct tegra_ehci_context { bool valid; u32 command; - u32 intr_enable; u32 frame_list; u32 async_next; u32 txfilltunning; @@ -215,9 +214,6 @@ static void tegra_ehci_restart(struct usb_hcd *hcd) /* flush posted writes */ ehci_readl(ehci, &ehci->regs->command); up_write(&ehci_cf_port_reset_rwsem); - - /* Turn On Interrupts */ - ehci_writel(ehci, INTR_MASK, &ehci->regs->intr_enable); } static int tegra_usb_suspend(struct usb_hcd *hcd) @@ -237,7 +233,6 @@ static int tegra_usb_suspend(struct usb_hcd *hcd) context->valid = false; } else { context->command = readl(&hw->command); - context->intr_enable = readl(&hw->intr_enable); context->frame_list = readl(&hw->frame_list); context->async_next = readl(&hw->async_next); context->txfilltunning = readl(&hw->reserved[2]); @@ -264,8 +259,12 @@ static int tegra_usb_resume(struct usb_hcd *hcd) set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); tegra_ehci_power_up(ehci_to_hcd(tegra->ehci)); - if (!context->valid) + if (!context->valid) { + /* Wait for the phy to detect new devices + * before we restart the controller */ + msleep(10); goto restart; + } /* Restore register context */ writel(TEGRA_USB_USBMODE_HOST, &hw->reserved[19]); @@ -333,10 +332,6 @@ static int tegra_usb_resume(struct usb_hcd *hcd) } } - /* Restore interrupt register */ - writel(context->intr_enable, &hw->intr_enable); - udelay(10); - return 0; restart: |