diff options
| author | David S. Miller <davem@davemloft.net> | 2012-02-10 23:32:28 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-02-10 23:32:28 -0500 |
| commit | d5ef8a4d87ab21d575ac86366599c9152a28028d (patch) | |
| tree | 8b1be85ad1af7ee6a0e3e36c77ae738c966c1f21 /drivers/usb/host/ehci-fsl.c | |
| parent | d9dd966d7fc088a6bed991c2b1e2fba4485e0a31 (diff) | |
| parent | 8df54d622a120058ee8bec38743c9b8f091c8e58 (diff) | |
| download | linux-d5ef8a4d87ab21d575ac86366599c9152a28028d.tar.bz2 | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/infiniband/hw/nes/nes_cm.c
Simple whitespace conflict.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/usb/host/ehci-fsl.c')
| -rw-r--r-- | drivers/usb/host/ehci-fsl.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index b556a72264d1..c26a82e83f6e 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -239,7 +239,7 @@ static void ehci_fsl_setup_phy(struct ehci_hcd *ehci, ehci_writel(ehci, portsc, &ehci->regs->port_status[port_offset]); } -static void ehci_fsl_usb_setup(struct ehci_hcd *ehci) +static int ehci_fsl_usb_setup(struct ehci_hcd *ehci) { struct usb_hcd *hcd = ehci_to_hcd(ehci); struct fsl_usb2_platform_data *pdata; @@ -299,12 +299,19 @@ static void ehci_fsl_usb_setup(struct ehci_hcd *ehci) #endif out_be32(non_ehci + FSL_SOC_USB_SICTRL, 0x00000001); } + + if (!(in_be32(non_ehci + FSL_SOC_USB_CTRL) & CTRL_PHY_CLK_VALID)) { + printk(KERN_WARNING "fsl-ehci: USB PHY clock invalid\n"); + return -ENODEV; + } + return 0; } /* called after powerup, by probe or system-pm "wakeup" */ static int ehci_fsl_reinit(struct ehci_hcd *ehci) { - ehci_fsl_usb_setup(ehci); + if (ehci_fsl_usb_setup(ehci)) + return -ENODEV; ehci_port_power(ehci, 0); return 0; |