usb: host: ohci-platform: set hcd->phy to avoid phy_get() in usb_add_hcd()
authorYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Mon, 13 Mar 2017 06:25:24 +0000 (15:25 +0900)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 17 Mar 2017 04:35:25 +0000 (13:35 +0900)
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>
drivers/usb/host/ohci-platform.c

index 898b74086c1292d1c63110795557155962adc1ba..6368fce43197c9bdfe80d5fd5718eedbea50e9fb 100644 (file)
@@ -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];
                        }
                }