On 6 June 2016 at 22:59, Felipe Balbi <balbi@xxxxxxxxxx> wrote: > > Hi, > > Baolin Wang <baolin.wang@xxxxxxxxxx> writes: >> On ARM64 platform, it will set 'dummy_dma_ops' for device dma_ops if >> it did not call 'arch_setup_dma_ops' at device creation time, that will >> cause failure when setting the dma mask for device. >> >> Thus this patch set the xhci device dma_ops from the parent device if >> the xhci device dma_ops is 'dummy_dma_ops'. >> >> Changes since v1: >> - Add CONFIG_ARM64 macro. >> >> Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxx> >> --- >> drivers/usb/dwc3/host.c | 5 +++++ >> 1 file changed, 5 insertions(+) >> >> diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c >> index c679f63..edb666d 100644 >> --- a/drivers/usb/dwc3/host.c >> +++ b/drivers/usb/dwc3/host.c >> @@ -32,6 +32,11 @@ int dwc3_host_init(struct dwc3 *dwc) >> return -ENOMEM; >> } >> >> +#ifdef CONFIG_ARM64 >> + if (get_dma_ops(&xhci->dev) == get_dma_ops(NULL)) >> + xhci->dev.archdata.dma_ops = get_dma_ops(dwc->dev); >> +#endif > > I don't like the ifdef and also don't like that this is done in dwc3 > itself. Seems like we need something like this done from the > platform_bus core. OK. I will try to fix this issue in platform_bus core. Thanks. > > -- > balbi -- Baolin.wang Best Regards -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
