Messages in this thread Patch in this message | | | Date | Wed, 09 Nov 2011 13:31:03 -0800 | From | Greg KH <> | Subject | [016/264] EHCI : introduce a common ehci_setup |
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3.1-stable review patch. If anyone has any objections, please let me know.
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From: Matthieu CASTET <castet.matthieu@free.fr>
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>
--- drivers/usb/host/ehci-hcd.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+)
--- 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)
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