linux-kernel - [PATCH 5.4 137/214] usb: dwc3: core: add phy cleanup for probe error handling

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Date:   Tue,  3 Nov 2020 21:36:25 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Li Jun <jun.li@....com>,
        Felipe Balbi <balbi@...nel.org>
Subject: [PATCH 5.4 137/214] usb: dwc3: core: add phy cleanup for probe error handling

From: Li Jun <jun.li@....com>

commit 03c1fd622f72c7624c81b64fdba4a567ae5ee9cb upstream.

Add the phy cleanup if dwc3 mode init fail, which is the missing part of
de-init for dwc3 core init.

Fixes: c499ff71ff2a ("usb: dwc3: core: re-factor init and exit paths")
Cc: <stable@...r.kernel.org>
Signed-off-by: Li Jun <jun.li@....com>
Signed-off-by: Felipe Balbi <balbi@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/usb/dwc3/core.c |   11 +++++++++++
 1 file changed, 11 insertions(+)

--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1535,6 +1535,17 @@ static int dwc3_probe(struct platform_de
 
 err5:
 	dwc3_event_buffers_cleanup(dwc);
+
+	usb_phy_shutdown(dwc->usb2_phy);
+	usb_phy_shutdown(dwc->usb3_phy);
+	phy_exit(dwc->usb2_generic_phy);
+	phy_exit(dwc->usb3_generic_phy);
+
+	usb_phy_set_suspend(dwc->usb2_phy, 1);
+	usb_phy_set_suspend(dwc->usb3_phy, 1);
+	phy_power_off(dwc->usb2_generic_phy);
+	phy_power_off(dwc->usb3_generic_phy);
+
 	dwc3_ulpi_exit(dwc);
 
 err4: