From: Chunfeng Yun <chunfeng.yun@mediatek.com>
Date: Tue, 8 Jun 2021 07:57:31 +0000 (+0800)
Subject: usb: mtu3: power down device IP by default
X-Git-Tag: v5.14-rc1~64^2~48
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b057da6d549103268a1fcb54046b209309447ae8;p=thirdparty%2Flinux.git

usb: mtu3: power down device IP by default

Power down device IP by default until @udc_start is called.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1623139069-8173-6-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c
index 6b5da98de6483..e306b93c007d1 100644
--- a/drivers/usb/mtu3/mtu3_core.c
+++ b/drivers/usb/mtu3/mtu3_core.c
@@ -921,16 +921,15 @@ int ssusb_gadget_init(struct ssusb_mtk *ssusb)
 
 	device_init_wakeup(dev, true);
 
+	/* power down device IP for power saving by default */
+	mtu3_stop(mtu);
+
 	ret = mtu3_gadget_setup(mtu);
 	if (ret) {
 		dev_err(dev, "mtu3 gadget init failed:%d\n", ret);
 		goto gadget_err;
 	}
 
-	/* init as host mode, power down device IP for power saving */
-	if (mtu->ssusb->dr_mode == USB_DR_MODE_OTG)
-		mtu3_stop(mtu);
-
 	ssusb_dev_debugfs_init(ssusb);
 
 	dev_dbg(dev, " %s() done...\n", __func__);