[PATCH v3 0/3] usb: meson: fix shared reset control use

Kevin Hilman khilman at baylibre.com
Fri Nov 19 11:27:32 PST 2021


Amjad Ouled-Ameur <aouledameur at baylibre.com> writes:

> This patchset fixes a usb suspend warning seen on the libretech-cc by
> using reset_control_rearm() call of the reset framework API. 
> This call allows a reset consummer to release the reset line even when 
> just triggered so that it may be triggered again by other reset
> consummers.
>
> reset_control_(de)assert() calls are called, in some meson usb drivers, 
> on a shared reset line when reset_control_reset has been used. This is not
> allowed by the reset framework.
>
> Finally the meson usb drivers are updated to use this new call, which
> solves the suspend issue addressed by the previous reverted 
> commit 7a410953d1fb ("usb: dwc3: meson-g12a: fix shared reset control
> use").

Tested-by: Kevin Hilman <khilman at baylibre.com>

Tested suspend/resume on Khadas VIM3 and confirmed that the reset
warnings are gone.

Kevin



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