On 29-04-20, 16:53, Mathias Nyman wrote:
> On 24.4.2020 13.14, Vinod Koul wrote:
> > Some rensas controller like uPD720201 and uPD720202 need firmware to be
> > loaded. Add these devices in table and invoke renesas firmware loader
> > functions to check and load the firmware into device memory when
> > required.
> >
> > Signed-off-by: Vinod Koul <[email protected]>
> > ---
> > drivers/usb/host/xhci-pci.c | 28 ++++++++++++++++++++++++++++
> > drivers/usb/host/xhci.h | 1 +
> > 2 files changed, 29 insertions(+)
> >
> > diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
> > index b6c2f5c530e3..f26cf072836d 100644
> > --- a/drivers/usb/host/xhci-pci.c
> > +++ b/drivers/usb/host/xhci-pci.c
> > @@ -15,6 +15,7 @@
> >
> > #include "xhci.h"
> > #include "xhci-trace.h"
> > +#include "xhci-pci.h"
> >
> > #define SSIC_PORT_NUM 2
> > #define SSIC_PORT_CFG2 0x880c
> > @@ -319,6 +320,8 @@ static int xhci_pci_setup(struct usb_hcd *hcd)
> > return xhci_pci_reinit(xhci, pdev);
> > }
> >
> > +static bool renesas_device;
>
> hmm, we shouldn't need this
>
> > +
> > /*
> > * We need to register our own PCI probe function (instead of the USB
> > core's
> > * function) in order to create a second roothub under xHCI.
> > @@ -328,6 +331,16 @@ static int xhci_pci_probe(struct pci_dev *dev, const
> > struct pci_device_id *id)
> > int retval;
> > struct xhci_hcd *xhci;
> > struct usb_hcd *hcd;
> > + struct xhci_driver_data *driver_data;
> > +
> > + renesas_device = false;
> > + driver_data = (struct xhci_driver_data *)id->driver_data;
> > + if (driver_data && driver_data->quirks & XHCI_RENESAS_FW_QUIRK) {
> > + retval = renesas_xhci_check_request_fw(dev, id);
> > + if (retval)
> > + return retval;
> > + renesas_device = true;
> > + }
> >
> > /* Prevent runtime suspending between USB-2 and USB-3 initialization */
> > pm_runtime_get_noresume(&dev->dev);
> > @@ -388,6 +401,9 @@ static void xhci_pci_remove(struct pci_dev *dev)
> > {
> > struct xhci_hcd *xhci;
> >
> > + if (renesas_device)
> > + renesas_xhci_pci_exit(dev);
> > +
>
> Ah, I see, what we really should do is make sure the quirks in the driver
> data get
> added to xhci->quirks, and then just check for the correct quirk in
> xhci_pci_remove.
Ah sure that does sound better, I will update this as well and send an
update with these changes
>
> if (xhci->quirks & XHCI_RENESAS_FW_QUIRK)
> renesas_xhci_pci_exit(dev);
>
>
> Heikki Krogerus did some work on this a long time ago, below code is based on
> his
> work. It needs to be added:
> diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
> index f26cf072836d..5ae4fc10fc31 100644
> --- a/drivers/usb/host/xhci-pci.c
> +++ b/drivers/usb/host/xhci-pci.c
> @@ -88,8 +88,16 @@ static int xhci_pci_reinit(struct xhci_hcd *xhci, struct
> pci_dev *pdev)
>
> static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
> {
> - struct pci_dev *pdev = to_pci_dev(dev);
> + struct pci_dev *pdev = to_pci_dev(dev);
> + struct xhci_driver_data *driver_data;
> + const struct pci_device_id *id;
>
> + id = pci_match_id(pdev->driver->id_table, pdev);
> +
> + if (id && id->driver_data) {
> + driver_data = (struct xhci_driver_data *)id->driver_data;
> + xhci->quirks |= driver_data->quirks;
> + }
> /* Look for vendor-specific quirks */
> if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC &&
> (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK ||
>
>
> -Mathias
--
~Vinod
