From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Date: Mon, 13 Mar 2017 06:25:24 +0000 (+0900)
Subject: usb: host: ohci-platform: set hcd->phy to avoid phy_get() in usb_add_hcd()
X-Git-Tag: v4.12-rc1~97^2~97
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=d3d6ef1fb908b286a610fe063613e519bc50178b;p=linux.git

usb: host: ohci-platform: set hcd->phy to avoid phy_get() in usb_add_hcd()

This patch sets hcd->phy from own phy context to avoid phy_get()
in usb_add_hcd(). Since core/hcd.c manages the phy only in
usb_add_hcd() and usb_remove_hcd(), there is difficult to manage
the phy in suspend/resume.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index 898b74086c12..6368fce43197 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -183,6 +183,9 @@ static int ohci_platform_probe(struct platform_device *dev)
 			if (IS_ERR(priv->phys[phy_num])) {
 				err = PTR_ERR(priv->phys[phy_num]);
 				goto err_put_hcd;
+			} else if (!hcd->phy) {
+				/* Avoiding phy_get() in usb_add_hcd() */
+				hcd->phy = priv->phys[phy_num];
 			}
 		}