diff options
| author | Matthieu CASTET <castet.matthieu@free.fr> | 2011-07-02 19:47:33 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-11 09:42:18 -0800 |
| commit | 0e8749ebf69099c00e2cd618e2ba725147cd56ff (patch) | |
| tree | e52b730cf2694f197ddcc30836a9ef0e4538f298 | |
| parent | a717f83d88fee104f61eac2ad9ad5816825f6247 (diff) | |
EHCI : introduce a common ehci_setup
commit 2093c6b49c8f1dc581d8953aca71297d4cace55e upstream.
This allow to clean duplicated code in most of SOC driver.
Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index f72ae0b6ee7f..9eddb9c69cc4 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -768,6 +768,35 @@ static int ehci_run (struct usb_hcd *hcd) return 0; } +static int __maybe_unused ehci_setup (struct usb_hcd *hcd) +{ + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + int retval; + + ehci->regs = (void __iomem *)ehci->caps + + HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase)); + dbg_hcs_params(ehci, "reset"); + dbg_hcc_params(ehci, "reset"); + + /* cache this readonly data; minimize chip reads */ + ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); + + ehci->sbrn = HCD_USB2; + + retval = ehci_halt(ehci); + if (retval) + return retval; + + /* data structure init */ + retval = ehci_init(hcd); + if (retval) + return retval; + + ehci_reset(ehci); + + return 0; +} + /*-------------------------------------------------------------------------*/ static irqreturn_t ehci_irq (struct usb_hcd *hcd) |