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Merge tag 'usb-3.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/…
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…git/gregkh/usb

USB: revert a powerpc EHCI patch

There is just one patch in here, a revert of a powerpc EHCI driver
patch that was reported to cause problems.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

* tag 'usb-3.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  Revert "powerpc/usb: fix issue of CPU halt when missing USB PHY clock"
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Linus Torvalds committed Mar 6, 2012
2 parents 75d7b39 + 7191940 commit 98e990a
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Showing 2 changed files with 2 additions and 10 deletions.
11 changes: 2 additions & 9 deletions drivers/usb/host/ehci-fsl.c
Original file line number Diff line number Diff line change
Expand Up @@ -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 int ehci_fsl_usb_setup(struct ehci_hcd *ehci)
static void ehci_fsl_usb_setup(struct ehci_hcd *ehci)
{
struct usb_hcd *hcd = ehci_to_hcd(ehci);
struct fsl_usb2_platform_data *pdata;
Expand Down Expand Up @@ -299,19 +299,12 @@ static int 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)
{
if (ehci_fsl_usb_setup(ehci))
return -ENODEV;
ehci_fsl_usb_setup(ehci);
ehci_port_power(ehci, 0);

return 0;
Expand Down
1 change: 0 additions & 1 deletion drivers/usb/host/ehci-fsl.h
Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,5 @@
#define FSL_SOC_USB_PRICTRL 0x40c /* NOTE: big-endian */
#define FSL_SOC_USB_SICTRL 0x410 /* NOTE: big-endian */
#define FSL_SOC_USB_CTRL 0x500 /* NOTE: big-endian */
#define CTRL_PHY_CLK_VALID (1 << 17)
#define SNOOP_SIZE_2GB 0x1e
#endif /* _EHCI_FSL_H */

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