On 12/15/2018 05:43 PM, Jean-Jacques Hiblot wrote:
> dfu, fastbot and other usb gadget commands take the USB port index as a
fastboot.
Looks good to me, I expect Lukasz to pick it, test it and send me a PR.
> parameter. Currently this index is assigned in the order of the driver
> bindings.
> Changing this behavior using the SEQ_ALIAS feature. This option assign to
> the device a SEQ number based on its alias (if it exists)
>
> To use it we must set the DM_UC_FLAG_SEQ_ALIAS flag and follow the existing
> naming convention: use "usb" for the name of the gadget UCLASS_DRIVER
> (same as for the UCLASS_USB).
>
> If no alias is provided, then the index falls back to the order in which
> the bindings took place.
>
> Signed-off-by: Jean-Jacques Hiblot <jjhib...@ti.com>
> Reported-by: Sam Protsenko <semen.protse...@linaro.org>
> ---
>
> drivers/usb/gadget/udc/udc-uclass.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/usb/gadget/udc/udc-uclass.c
> b/drivers/usb/gadget/udc/udc-uclass.c
> index 0620518..e9f8f5f 100644
> --- a/drivers/usb/gadget/udc/udc-uclass.c
> +++ b/drivers/usb/gadget/udc/udc-uclass.c
> @@ -20,7 +20,7 @@ int usb_gadget_initialize(int index)
> return -EINVAL;
> if (dev_array[index])
> return 0;
> - ret = uclass_get_device(UCLASS_USB_GADGET_GENERIC, index, &dev);
> + ret = uclass_get_device_by_seq(UCLASS_USB_GADGET_GENERIC, index, &dev);
> if (!dev || ret) {
> pr_err("No USB device found\n");
> return -ENODEV;
> @@ -54,5 +54,6 @@ int usb_gadget_handle_interrupts(int index)
>
> UCLASS_DRIVER(usb_gadget_generic) = {
> .id = UCLASS_USB_GADGET_GENERIC,
> - .name = "usb_gadget_generic",
> + .name = "usb",
> + .flags = DM_UC_FLAG_SEQ_ALIAS,
> };
>
--
Best regards,
Marek Vasut
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