phy: amlogic: phy-meson-gxl-usb2: fix shared reset controller use
authorAmjad Ouled-Ameur <aouledameur@baylibre.com>
Tue, 11 Jan 2022 09:52:53 +0000 (10:52 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 13 Apr 2022 18:59:11 +0000 (20:59 +0200)
commit35df38c4be0c5edc5a50599e3bbedcdfbfa48004
tree65bd1a0c87226b3c40cf179a89c7869f50a83dc1
parent42f2142a337ee372455574809fc924580a7e51b2
phy: amlogic: phy-meson-gxl-usb2: fix shared reset controller use

[ Upstream commit 2f87727130ce17ffefecd0895eeebf22d5a36f6f ]

Use reset_control_rearm() call if an error occurs in case
phy_meson_gxl_usb2_init() fails after reset() has been called ; or in case
phy_meson_gxl_usb2_exit() is called i.e the resource is no longer used
and the reset line may be triggered again by other devices.

reset_control_rearm() keeps use of triggered_count sane in the reset
framework. Therefore, use of reset_control_reset() on shared reset line
should be balanced with reset_control_rearm().

Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
Reported-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20220111095255.176141-2-aouledameur@baylibre.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/phy/amlogic/phy-meson-gxl-usb2.c