usb: dwc2: Fix some error handling paths

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dwc2_driver_probe() calls dwc2_lowlevel_hw_init() which deassert some reset
lines.
Should an error happen in dwc2_lowlevel_hw_init() after calling
reset_control_deassert() or in the probe after calling
dwc2_lowlevel_hw_init(), the reset lines remain deasserted.

Add some devm_add_action_or_reset() calls to re-assert the lines if needed.

Update the remove function accordingly.

This change is compile-tested only.

Fixes: 83f8da562f ("usb: dwc2: Add reset control to dwc2")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/c64537b5339342bd00f7c2152b8fc23792b9f95a.1683306479.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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This commit is contained in:

Christophe JAILLET 2023-05-05 19:15:08 +02:00 • committed by Greg Kroah-Hartman

parent 2f28c3c9c3

commit ada050c691

1 changed files with 13 additions and 3 deletions

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drivers/usb/dwc2/platform.c

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