On Tue, Apr 22, 2014 at 10:41:06PM +0800, Felipe Balbi wrote: > On Tue, Apr 22, 2014 at 10:46:13AM +0530, Pratyush Anand wrote: > > On Tue, Apr 22, 2014 at 12:43:55PM +0800, Felipe Balbi wrote: > > > On Tue, Apr 22, 2014 at 09:57:29AM +0530, Pratyush Anand wrote: > > > > All dwc3 based xhci host controller supports USB3.0 LPM functionality. > > > > Therefore enable quirk flag to support it for dwc3 xhci host driver. > > > > > > > > Signed-off-by: Pratyush Anand <[email protected]> > > > > Tested-by: Aymen Bouattay <[email protected]> > > > > --- > > > > drivers/usb/dwc3/host.c | 1 + > > > > 1 file changed, 1 insertion(+) > > > > > > > > diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c > > > > index a362ed9..b0e4669 100644 > > > > --- a/drivers/usb/dwc3/host.c > > > > +++ b/drivers/usb/dwc3/host.c > > > > @@ -86,6 +86,7 @@ int dwc3_host_init(struct dwc3 *dwc) > > > > hcd = platform_get_drvdata(xhci); > > > > xhci_dev = hcd_to_xhci(hcd); > > > > xhci_dev->shared_hcd->phy = dwc->usb3_phy; > > > > + xhci_dev->quirks |= XHCI_LPM_SUPPORT; > > > > > > weird... what sort of changes do you have which you didn't send yet ? > > > dwc3/host.c does not create the xHCI device. dwc3_host_init() is > > > basically a wrapper to platform_add_device() > > > > There is nothing, and it works. > > > > Adding platform xhci driver in defconfig and selecting dwc3 in DT is > > sufficient. > > Did I get, what you were asking? > > this little hunk below will never apply to dwc3/host.c: > > diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c > index a362ed9..b0e4669 100644 > --- a/drivers/usb/dwc3/host.c > +++ b/drivers/usb/dwc3/host.c > @@ -86,6 +86,7 @@ int dwc3_host_init(struct dwc3 *dwc) > hcd = platform_get_drvdata(xhci); > xhci_dev = hcd_to_xhci(hcd); > xhci_dev->shared_hcd->phy = dwc->usb3_phy; > + xhci_dev->quirks |= XHCI_LPM_SUPPORT; > > > here are dwc3/host.c contents as of v3.15-rc2 (removed comments) > > #include <linux/platform_device.h> > > #include "core.h" > > int dwc3_host_init(struct dwc3 *dwc) > { > struct platform_device *xhci; > int ret; > > xhci = platform_device_alloc("xhci-hcd", PLATFORM_DEVID_AUTO); > if (!xhci) { > dev_err(dwc->dev, "couldn't allocate xHCI device\n"); > ret = -ENOMEM; > goto err0; > } > > dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask); > > xhci->dev.parent = dwc->dev; > xhci->dev.dma_mask = dwc->dev->dma_mask; > xhci->dev.dma_parms = dwc->dev->dma_parms; > > dwc->xhci = xhci; > > ret = platform_device_add_resources(xhci, dwc->xhci_resources, > DWC3_XHCI_RESOURCES_NUM); > if (ret) { > dev_err(dwc->dev, "couldn't add resources to xHCI device\n"); > goto err1; > } > > ret = platform_device_add(xhci); > if (ret) { > dev_err(dwc->dev, "failed to register xHCI device\n"); > goto err1; > } > > return 0; > > err1: > platform_device_put(xhci); > > err0: > return ret; > } > > void dwc3_host_exit(struct dwc3 *dwc) > { > platform_device_unregister(dwc->xhci); > } > > as you can see, there is no such thing as xhci_dev variable.
OK....I see.. I will rebase it with latest code. Pratyush > > -- > balbi -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
