Commit 1c703e29 authored by Chunfeng Yun's avatar Chunfeng Yun Committed by Greg Kroah-Hartman
Browse files

usb: mtu3: fix failed runtime suspend in host only mode 



When the dr_mode is "host", after the host enter runtime suspend,
the mtu3 can't do it, because the mtu3's device wakeup function is
not enabled, instead it's enabled in gadget init function, to fix
the issue, init wakeup early in mtu3's probe()

Fixes: 6b587394 ("usb: mtu3: support suspend/resume for dual-role mode")
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reported-by: default avatarTianping Fang <tianping.fang@mediatek.com>
Signed-off-by: default avatarChunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20220929064459.32522-1-chunfeng.yun@mediatek.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4b833fb3

drivers/usb/mtu3/mtu3_core.c

+0 −2
Original line number Diff line number Diff line
@@ -978,8 +978,6 @@ int ssusb_gadget_init(struct ssusb_mtk *ssusb) 
		goto irq_err;

	}



	device_init_wakeup(dev, true);



	/* power down device IP for power saving by default */

	mtu3_stop(mtu);

drivers/usb/mtu3/mtu3_plat.c

+2 −0
Original line number Diff line number Diff line
@@ -356,6 +356,8 @@ static int mtu3_probe(struct platform_device *pdev) 
	pm_runtime_enable(dev);

	pm_runtime_get_sync(dev);



	device_init_wakeup(dev, true);



	ret = ssusb_rscs_init(ssusb);

	if (ret)

		goto comm_init_err;