linux-kernel - usb: dwc3: gadget: Change runtime pm function for DWC3 runtime suspend

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Message-Id: <1613356739-91734-1-git-send-email-dh10.jung@samsung.com>
Date:   Mon, 15 Feb 2021 11:38:58 +0900
From:   Daehwan Jung <dh10.jung@...sung.com>
To:     Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Daehwan Jung <dh10.jung@...sung.com>
Subject: usb: dwc3: gadget: Change runtime pm function for DWC3 runtime
 suspend

It seems pm_runtime_put calls runtime_idle callback not runtime_suspend callback.
It's better to use pm_runtime_put_sync_suspend to allow DWC3 runtime suspend.

Signed-off-by: Daehwan Jung <dh10.jung@...sung.com>
---
 drivers/usb/dwc3/gadget.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index aebcf8e..4a4b93b 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2229,7 +2229,7 @@ static int dwc3_gadget_pullup(struct usb_gadget *g, int is_on)
 	 */
 	ret = pm_runtime_get_sync(dwc->dev);
 	if (!ret || ret < 0) {
-		pm_runtime_put(dwc->dev);
+		pm_runtime_put_sync_suspend(dwc->dev);
 		return 0;
 	}
 
-- 
2.7.4