On Wed, 12 Jun 2013, Manjunath Goudar wrote:
> Separate the TI OHCI OMAP1/2 host controller driver from ohci-hcd
> host code so that it can be built as a separate driver module.
> This work is part of enabling multi-platform kernels on ARM;
> it would be nice to have in 3.11.
>
> V2:
> -omap_ohci_clock_power(0) called in usb_hcd_omap_remove().
> -Removed ohci_setup() call from usb_hcd_omap_probe() and ohci_omap_reset().
> -host_enabled and host_initialized variables aren't used for anything
> thats what removed.
There's one more thing I just noticed.
> @@ -188,21 +195,21 @@ static void start_hnp(struct ohci_hcd *ohci)
>
> /*-------------------------------------------------------------------------*/
>
> -static int ohci_omap_init(struct usb_hcd *hcd)
> +static int ohci_omap_reset(struct usb_hcd *hcd)
> {
> struct ohci_hcd *ohci = hcd_to_ohci(hcd);
> struct omap_usb_config *config = hcd->self.controller->platform_data;
> int need_transceiver = (config->otg != 0);
> - int ret;
>
> dev_dbg(hcd->self.controller, "starting USB Controller\n");
>
> - if (config->otg) {
> + if (config->otg || config->rwc) {
> ohci_to_hcd(ohci)->self.otg_port = config->otg;
> /* default/minimum OTG power budget: 8 mA */
> ohci_to_hcd(ohci)->power_budget = 8;
> + ohci->hc_control = OHCI_CTRL_RWC;
> + writel(OHCI_CTRL_RWC, &ohci->regs->control);
This last line must not appear here, because ohci->regs doesn't get set
until ohci_setup() calls ohci_init(). Removing it entirely is safe
because ohci_run() does the same thing later on. Or you can move both
of these last two lines after the call to ohci_setup().
Alan Stern
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