From cd0712116761eed1500b2272a5492d2120c30f26 Mon Sep 17 00:00:00 2001 From: Matthieu CASTET Date: Sat, 2 Jul 2011 19:47:33 +0200 Subject: [PATCH] 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 Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-hcd.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 9ff9abc7e3aa..c45a116f50fe 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -761,6 +761,35 @@ 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) -- 2.39.5