[PATCH v15 03/11] phy: rockchip: usbdp: Re-init the PHY on orientation change

[Sebastian Reichel]

Changing the cable orientation reconfigures the lane muxing, which
requires re-initializing the PHY. Without this DP functionality
breaks, if the cable is re-plugged with swapped orientation.

Tested-by: Igor Paunovic <royalnet026 at gmail.com> # Orange Pi 5 Plus
Signed-off-by: Sebastian Reichel <sebastian.reichel at collabora.com>
---
 drivers/phy/rockchip/phy-rockchip-usbdp.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/rockchip/phy-rockchip-usbdp.c b/drivers/phy/rockchip/phy-rockchip-usbdp.c
index 9767fba23660..9a4ead585151 100644
--- a/drivers/phy/rockchip/phy-rockchip-usbdp.c
+++ b/drivers/phy/rockchip/phy-rockchip-usbdp.c
@@ -619,6 +619,7 @@ static int rk_udphy_orien_sw_set(struct typec_switch_dev *sw,
 				 enum typec_orientation orien)
 {
 	struct rk_udphy *udphy = typec_switch_get_drvdata(sw);
+	bool flipped = orien == TYPEC_ORIENTATION_REVERSE;
 
 	mutex_lock(&udphy->mutex);
 
@@ -630,7 +631,10 @@ static int rk_udphy_orien_sw_set(struct typec_switch_dev *sw,
 		goto unlock_ret;
 	}
 
-	udphy->flip = orien == TYPEC_ORIENTATION_REVERSE;
+	if (udphy->flip != flipped)
+		udphy->phy_needs_reinit = true;
+
+	udphy->flip = flipped;
 	rk_udphy_set_typec_default_mapping(udphy);
 	rk_udphy_usb_bvalid_enable(udphy, true);
 

-- 
2.53.0