| Message ID | 20221111101813.32482-2-jilin@nvidia.com |
|---|---|
| State | New |
| Headers | show |
| Series | xhci: tegra: USB2 pad power controls | expand |
On 11/11/2022 10:18, Jim Lin wrote: > Add a hub_control() callback to the xhci_driver_overrides structure to > allow host drivers to override the default hub_control function. This > is required for Tegra which requires device specific actions for power > management to be executed during USB state transitions. > > Signed-off-by: Jim Lin <jilin@nvidia.com> > > --- > v5: new change > v6: adjust parameter alignment (xhci.h hub_control) > v7: change commit message > > drivers/usb/host/xhci.c | 2 ++ > drivers/usb/host/xhci.h | 2 ++ > 2 files changed, 4 insertions(+) > > diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c > index 902f410874e8..3c7bf0a0e0b4 100644 > --- a/drivers/usb/host/xhci.c > +++ b/drivers/usb/host/xhci.c > @@ -5461,6 +5461,8 @@ void xhci_init_driver(struct hc_driver *drv, > drv->check_bandwidth = over->check_bandwidth; > if (over->reset_bandwidth) > drv->reset_bandwidth = over->reset_bandwidth; > + if (over->hub_control) > + drv->hub_control = over->hub_control; > } > } > EXPORT_SYMBOL_GPL(xhci_init_driver); > diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h > index 5a75fe563123..f51b674fc10c 100644 > --- a/drivers/usb/host/xhci.h > +++ b/drivers/usb/host/xhci.h > @@ -1943,6 +1943,8 @@ struct xhci_driver_overrides { > struct usb_host_endpoint *ep); > int (*check_bandwidth)(struct usb_hcd *, struct usb_device *); > void (*reset_bandwidth)(struct usb_hcd *, struct usb_device *); > + int (*hub_control)(struct usb_hcd *hcd, u16 typeReq, u16 wValue, > + u16 wIndex, char *buf, u16 wLength); > }; > > #define XHCI_CFC_DELAY 10 Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Thanks Jon
On Fri, Nov 11, 2022 at 06:18:11PM +0800, Jim Lin wrote: > Add a hub_control() callback to the xhci_driver_overrides structure to > allow host drivers to override the default hub_control function. This > is required for Tegra which requires device specific actions for power > management to be executed during USB state transitions. > > Signed-off-by: Jim Lin <jilin@nvidia.com> > > --- > v5: new change > v6: adjust parameter alignment (xhci.h hub_control) > v7: change commit message > > drivers/usb/host/xhci.c | 2 ++ > drivers/usb/host/xhci.h | 2 ++ > 2 files changed, 4 insertions(+) Acked-by: Thierry Reding <treding@nvidia.com>
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 902f410874e8..3c7bf0a0e0b4 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -5461,6 +5461,8 @@ void xhci_init_driver(struct hc_driver *drv, drv->check_bandwidth = over->check_bandwidth; if (over->reset_bandwidth) drv->reset_bandwidth = over->reset_bandwidth; + if (over->hub_control) + drv->hub_control = over->hub_control; } } EXPORT_SYMBOL_GPL(xhci_init_driver); diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 5a75fe563123..f51b674fc10c 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1943,6 +1943,8 @@ struct xhci_driver_overrides { struct usb_host_endpoint *ep); int (*check_bandwidth)(struct usb_hcd *, struct usb_device *); void (*reset_bandwidth)(struct usb_hcd *, struct usb_device *); + int (*hub_control)(struct usb_hcd *hcd, u16 typeReq, u16 wValue, + u16 wIndex, char *buf, u16 wLength); }; #define XHCI_CFC_DELAY 10
Add a hub_control() callback to the xhci_driver_overrides structure to allow host drivers to override the default hub_control function. This is required for Tegra which requires device specific actions for power management to be executed during USB state transitions. Signed-off-by: Jim Lin <jilin@nvidia.com> --- v5: new change v6: adjust parameter alignment (xhci.h hub_control) v7: change commit message drivers/usb/host/xhci.c | 2 ++ drivers/usb/host/xhci.h | 2 ++ 2 files changed, 4 insertions(+)