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usb: mtu3: restore HS function when set SS/SSP

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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@vger.kernel.org
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1628836253-7432-1-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chunfeng Yun 2021-08-13 14:30:47 +08:00 committed by Greg Kroah-Hartman
parent c75e2fd0d3
commit 147819723c
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/mtu3/mtu3_core.c
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@ -227,11 +227,13 @@ void mtu3_set_speed(struct mtu3 *mtu, enum usb_device_speed speed)
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: