if we optimize barebox for speed, then we can't use usbgadget autostart,
which would set otg.mode automatically.
Provide an option for usbgadget command to set otg.mode.

Signed-off-by: Oleksij Rempel <[email protected]>
---
 commands/usbgadget.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/commands/usbgadget.c b/commands/usbgadget.c
index 507871edd2..e5109f99cb 100644
--- a/commands/usbgadget.c
+++ b/commands/usbgadget.c
@@ -34,15 +34,19 @@ static int do_usbgadget(int argc, char *argv[])
 {
        int opt, ret;
        int acm = 1, create_serial = 0, fastboot_set = 0, fastboot_export_bbu = 
0;
+       int usb_mode_set = 0;
        const char *fastboot_opts = NULL, *dfu_opts = NULL;
        struct f_multi_opts *opts;
 
-       while ((opt = getopt(argc, argv, "asdA::D:b")) > 0) {
+       while ((opt = getopt(argc, argv, "amsdA::D:b")) > 0) {
                switch (opt) {
                case 'a':
                        acm = 1;
                        create_serial = 1;
                        break;
+               case 'm':
+                       usb_mode_set = 1;
+                       break;
                case 's':
                        acm = 0;
                        create_serial = 1;
@@ -101,6 +105,9 @@ static int do_usbgadget(int argc, char *argv[])
                opts->create_acm = acm;
        }
 
+       if (usb_mode_set)
+               setenv("otg.mode", "peripheral");
+
        ret = usb_multi_register(opts);
        if (ret)
                usb_multi_opts_release(opts);
@@ -120,6 +127,7 @@ BAREBOX_CMD_HELP_TEXT("Enable / disable a USB composite 
gadget on the USB device
 BAREBOX_CMD_HELP_TEXT("")
 BAREBOX_CMD_HELP_TEXT("Options:")
 BAREBOX_CMD_HELP_OPT ("-a",   "Create CDC ACM function")
+BAREBOX_CMD_HELP_OPT ("-m",   "Automatically set USB OTG mode to peripheral")
 BAREBOX_CMD_HELP_OPT ("-s",   "Create Generic Serial function")
 BAREBOX_CMD_HELP_OPT ("-A [desc]",     "Create Android Fastboot function. If 
'desc' is not provided,")
 BAREBOX_CMD_HELP_OPT ("",              "trying to use 
'global.usbgadget.fastboot_function' variable.")
@@ -131,7 +139,7 @@ BAREBOX_CMD_HELP_END
 BAREBOX_CMD_START(usbgadget)
        .cmd            = do_usbgadget,
        BAREBOX_CMD_DESC("Create USB Gadget multifunction device")
-       BAREBOX_CMD_OPTS("[-asdAD]")
+       BAREBOX_CMD_OPTS("[-amsdAD]")
        BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
        BAREBOX_CMD_HELP(cmd_usbgadget_help)
 BAREBOX_CMD_END
-- 
2.11.0


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