usb: dwc3: fix PHY disable sequence

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commit d2ac7bef95 upstream.

Generic PHYs must be powered-off before they can be tore down.

Similarly, suspending legacy PHYs after having powered them off makes no
sense.

Fix the dwc3_core_exit() (e.g. called during suspend) and open-coded
dwc3_probe() error-path sequences that got this wrong.

Note that this makes dwc3_core_exit() match the dwc3_core_init() error
path with respect to powering off the PHYs.

Fixes: 03c1fd622f ("usb: dwc3: core: add phy cleanup for probe error handling")
Fixes: c499ff71ff ("usb: dwc3: core: re-factor init and exit paths")
Cc: stable@vger.kernel.org      # 4.8
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20220804151001.23612-2-johan+linaro@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Johan Hovold 2022-08-04 17:09:53 +02:00 • committed by Greg Kroah-Hartman

parent 492a177db7

commit 735e7d0834

1 changed files with 10 additions and 9 deletions

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drivers/usb/dwc3/core.c

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