linux-kernel - [PATCH 5.19 14/33] Revert "USB: fixup for merge issue with "usb: dwc3: Dont switch OTG -> peripheral if extcon is present""

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Date:   Thu, 13 Oct 2022 19:52:46 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Ferry Toth <fntoth@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH 5.19 14/33] Revert "USB: fixup for merge issue with "usb: dwc3: Dont switch OTG -> peripheral if extcon is present""

From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

commit 2adc960ce79d3231b02f820daeee434542fe2911 upstream.

This reverts commit 8bd6b8c4b1009d7d2662138d6bdc6fe58a9274c5.

Prerequisite revert for the reverting of the original commit 0f0101719138.

Fixes: 8bd6b8c4b100 ("USB: fixup for merge issue with "usb: dwc3: Don't switch OTG -> peripheral if extcon is present"")
Fixes: 0f0101719138 ("usb: dwc3: Don't switch OTG -> peripheral if extcon is present")
Reported-by: Ferry Toth <fntoth@...il.com>
Cc: stable@...r.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Tested-by: Ferry Toth <fntoth@...il.com> # for Merrifield
Link: https://lore.kernel.org/r/20220927155332.10762-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/usb/dwc3/core.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1650,8 +1650,13 @@ static struct extcon_dev *dwc3_get_extco
 	 * This device property is for kernel internal use only and
 	 * is expected to be set by the glue code.
 	 */
-	if (device_property_read_string(dev, "linux,extcon-name", &name) == 0)
-		return extcon_get_extcon_dev(name);
+	if (device_property_read_string(dev, "linux,extcon-name", &name) == 0) {
+		edev = extcon_get_extcon_dev(name);
+		if (!edev)
+			return ERR_PTR(-EPROBE_DEFER);
+
+		return edev;
+	}
 
 	/*
 	 * Try to get an extcon device from the USB PHY controller's "port"