[PATCH] Revert "usb: dwc3: meson-g12a: fix shared reset control use"
Philipp Zabel
p.zabel at pengutronix.de
Thu Aug 27 11:03:03 EDT 2020
On Thu, 2020-08-27 at 16:48 +0200, Amjad Ouled-Ameur wrote:
> This reverts commit 7a410953d1fb4dbe91ffcfdee9cbbf889d19b0d7.
>
> This commit breaks USB on meson-gxl-s905x-libretech-cc. Reverting
> the change solves the issue.
>
> In fact, according to the reset framework code, consumers must not use
> reset_control_(de)assert() on shared reset lines when reset_control_reset
> has been used, and vice-versa.
>
> Moreover, with this commit, usb is not guaranted to be reset since the
> reset is likely to be initially deasserted.
>
> Reverting the commit will bring back the suspend warning mentioned in the
> commit description. Nevertheless, a warning is much less critical than
> breaking dwc3-meson-g12a USB completely. We will address the warning
> issue in another way as a 2nd step.
>
> Signed-off-by: Amjad Ouled-Ameur <aouledameur at baylibre.com>
> Reported-by: Jerome Brunet <jbrunet at baylibre.com>
Acked-by: Philipp Zabel <p.zabel at pengutronix.de>
regards
Philipp
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