diff options
| author | Jean-Jacques Hiblot <jjhiblot@ti.com> | 2018-12-15 17:43:27 +0100 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2019-01-10 18:52:51 +0100 |
| commit | 801f1fa44275e274e33bdfc7fb76535cc6118d61 (patch) | |
| tree | 8666747b0b9676111c8eaae27b3e69b1c5b87139 /drivers/usb/gadget | |
| parent | 8c6cc71b40357dad4e3f21e9f1bd84db76a3d994 (diff) | |
dm: usb: udc: Use SEQ_ALIAS to index the USB gadget ports
dfu, fastbot and other usb gadget commands take the USB port index as a
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 <jjhiblot@ti.com>
Reported-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Tested-by: Sam Protsenko <semen.protsenko@linaro.org>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/udc/udc-uclass.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/usb/gadget/udc/udc-uclass.c b/drivers/usb/gadget/udc/udc-uclass.c index 062051857a..e9f8f5f246 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, }; |