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FAILED: patch "[PATCH] usb: dwc2: fix wrong order of phy_power_on and phy_init" failed to apply to 4.9-stable tree

PATCH [email protected] 1 participant 1 message Sep 6, 2022

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The patch below does not apply to the 4.9-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From f9b995b49a07bd0d43b0e490f59be84415c745ae Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <[email protected]>
Date: Tue, 23 Aug 2022 19:58:42 +0200
Subject: [PATCH] usb: dwc2: fix wrong order of phy_power_on and phy_init

Since 1599069a62c6 ("phy: core: Warn when phy_power_on is called before phy_init") the driver complains. In my case (Amlogic SoC) the warning
is: phy phy-fe03e000.phy.2: phy_power_on was called before phy_init So change the order of the two calls. The same change has to be done to the order of phy_exit() and phy_power_off().

drivers/usb/dwc2/platform.c +4 -4
index c8ba87df7abe..fd0ccf6f3ec5 100644
@@ -154,9 +154,9 @@ static int __dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg)
 	} else if (hsotg->plat && hsotg->plat->phy_init) {
 		ret = hsotg->plat->phy_init(pdev, hsotg->plat->phy_type);
 	} else {
-		ret = phy_power_on(hsotg->phy);
+		ret = phy_init(hsotg->phy);
 		if (ret == 0)
-			ret = phy_init(hsotg->phy);
+			ret = phy_power_on(hsotg->phy);
 	}
 
 	return ret;
@@ -188,9 +188,9 @@ static int __dwc2_lowlevel_hw_disable(struct dwc2_hsotg *hsotg)
 	} else if (hsotg->plat && hsotg->plat->phy_exit) {
 		ret = hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type);
 	} else {
-		ret = phy_exit(hsotg->phy);
+		ret = phy_power_off(hsotg->phy);
 		if (ret == 0)
-			ret = phy_power_off(hsotg->phy);
+			ret = phy_exit(hsotg->phy);
 	}
 	if (ret)
 		return ret;