On Wed, Oct 25, 2023 at 11:51:10AM +0200, Alexander Stein wrote:
> The default mode, configurable by DT, shall be set before usb role switch
> driver is registered. Otherwise there is a race between default mode
> and mode set by usb role switch driver.
>
> Fixes: 98ed256a4dbad ("usb: dwc3: Add support for role-switch-default-mode binding")
> Signed-off-by: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
> ---
> This is a different approach to [1] to fix the race upon dwc3 role
> initialization. dwc3_set_mode() needs to be called in dwc3_setup_role_switch()
> to ensure the mode is initialized.
> The usb role switch driver probe might be delayed or defered for some unrelated
> reason, leaving the dwc3 mode unitialized if dwc3_set_mode() is not called here.
>
> [1] https://lore.kernel.org/linux-usb/2176034.Icojqenx9y@steina-w/T/
>
> drivers/usb/dwc3/drd.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
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