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 <vkoul@xxxxxxxxxx>
> ---
> 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.
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
