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Message-Id: <20210910122916.905283104@linuxfoundation.org>
Date:   Fri, 10 Sep 2021 14:30:24 +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, Chunfeng Yun <chunfeng.yun@...iatek.com>
Subject: [PATCH 5.10 20/26] usb: mtu3: restore HS function when set SS/SSP

From: Chunfeng Yun <chunfeng.yun@...iatek.com>

commit e88f28514065a6c48aadc367efb0ef6378a01543 upstream.

Due to HS function is disabled when set as FS, need restore
it when set as SS/SSP.

Fixes: dc4c1aa7eae9 ("usb: mtu3: add ->udc_set_speed()")
Cc: stable@...r.kernel.org
Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
Link: https://lore.kernel.org/r/1628836253-7432-1-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/usb/mtu3/mtu3_core.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/usb/mtu3/mtu3_core.c
+++ b/drivers/usb/mtu3/mtu3_core.c
@@ -227,11 +227,13 @@ void mtu3_set_speed(struct mtu3 *mtu, en
 		mtu3_setbits(mbase, U3D_POWER_MANAGEMENT, HS_ENABLE);
 		break;
 	case USB_SPEED_SUPER:
+		mtu3_setbits(mbase, U3D_POWER_MANAGEMENT, HS_ENABLE);
 		mtu3_clrbits(mtu->ippc_base, SSUSB_U3_CTRL(0),
 			     SSUSB_U3_PORT_SSP_SPEED);
 		break;
 	case USB_SPEED_SUPER_PLUS:
-			mtu3_setbits(mtu->ippc_base, SSUSB_U3_CTRL(0),
+		mtu3_setbits(mbase, U3D_POWER_MANAGEMENT, HS_ENABLE);
+		mtu3_setbits(mtu->ippc_base, SSUSB_U3_CTRL(0),
 			     SSUSB_U3_PORT_SSP_SPEED);
 		break;
 	default:


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