On Mon, 2022-10-17 at 21:17 +0100, Jon Hunter wrote:
> On 17/10/2022 10:36, Jim Lin wrote:
> > On Wed, 2022-10-12 at 12:45 +0100, Jon Hunter wrote:
> > > On 12/10/2022 11:25, Jim Lin wrote:
> > > > Program USB2 pad PD controls during port connect/disconnect,
> > > > port
> > > > suspend/resume, and test mode, to reduce power consumption on
> > > > disconnect or suspend.
> > > >
> > > > Signed-off-by: Jim Lin <jilin@xxxxxxxxxx>
> > > > ---
> > > > v2: Fix issue that wrong tegra->phys[] may be accessed on
> > > > tegra124
> > > > v3: No change on copyright
> > > >
> > > > drivers/usb/host/xhci-tegra.c | 139
> > > > +++++++++++++++++++++++++++++++++-
> > > > 1 file changed, 138 insertions(+), 1 deletion(-)
> > > >
> > > > diff --git a/drivers/usb/host/xhci-tegra.c
> > > > b/drivers/usb/host/xhci-
> > > > tegra.c
> > > > index c8af2cd2216d..996182a1959f 100644
> > > > --- a/drivers/usb/host/xhci-tegra.c
> > > > +++ b/drivers/usb/host/xhci-tegra.c
> > > > @@ -189,6 +189,13 @@ struct tegra_xusb_context_soc {
> > > > } fpci;
> > > > };
> > > >
> > > > +enum tegra_xhci_phy_type {
> > > > + USB3_PHY,
> > > > + USB2_PHY,
> > > > + HSIC_PHY,
> > > > + MAX_PHY_TYPES,
> > > > +};
> > > > +
> > > > struct tegra_xusb_soc {
> > > > const char *firmware;
> > > > const char * const *supply_names;
> > > > @@ -274,9 +281,17 @@ struct tegra_xusb {
> > > >
> > > > bool suspended;
> > > > struct tegra_xusb_context context;
> > > > + u32 enable_utmi_pad_after_lp0_exit;
> > > > };
> > > >
> > > > static struct hc_driver __read_mostly tegra_xhci_hc_driver;
> > > > +static int (*original_xhci_hub_control)(struct usb_hcd *hcd,
> > > > u16
> > > > typeReq, u16 wValue, u16 wIndex,
> > > > + char *buf, u16 wLength);
> > >
> > > Is it better to add this function pointer to the tegra_xusb
> > > structure?
> > >
> > > Jon
> > >
> >
> > Do you mean removing variable "original_xhci_hub_control" and save
> > function pointer to the tegra_xusb structure ?
> >
> > But that doesn't look possible over here to point to tegra_xusb
> > structure and save pointer (to tegra_xhci_hc_driver.hub_control)
> > into
> > it.
>
>
> Ah yes, this is in the init function and so we can't do that. Any
> issue
> with calling xhci_hub_control() directly in the function
> tegra_xhci_hub_control()?
>
> Jon
>
Thanks, will try.
--nvpublic
