Messages in this thread Patch in this message | | | From | Amjad Ouled-Ameur <> | Subject | [PATCH v4 1/3] phy: amlogic: phy-meson-gxl-usb2: fix shared reset controller use | Date | Sun, 5 Dec 2021 22:58:44 +0100 |
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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> --- changes since v3: - Remove unnecessary reset_control_rearm() after reset_control_reset() failure.
drivers/phy/amlogic/phy-meson-gxl-usb2.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/phy/amlogic/phy-meson-gxl-usb2.c b/drivers/phy/amlogic/phy-meson-gxl-usb2.c index 2b3c0d730f20..d2f56075dc57 100644 --- a/drivers/phy/amlogic/phy-meson-gxl-usb2.c +++ b/drivers/phy/amlogic/phy-meson-gxl-usb2.c @@ -125,6 +125,7 @@ static int phy_meson_gxl_usb2_exit(struct phy *phy) struct phy_meson_gxl_usb2_priv *priv = phy_get_drvdata(phy); clk_disable_unprepare(priv->clk); + reset_control_rearm(priv->reset); return 0; } -- 2.25.1
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