target/linux/generic/patches-3.18/191-usb-ehci-orion-fix-probe-for-GENERIC_PHY.patch

   1 From a95f03e51471dbdbafd3391991d867ac2358ed02 Mon Sep 17 00:00:00 2001
   2 From: Jonas Gorski <jogo@openwrt.org>
   3 Date: Sun, 23 Aug 2015 14:23:29 +0200
   4 Subject: [PATCH] usb: ehci-orion: fix probe for !GENERIC_PHY
   5
   6 Commit d445913ce0ab7f ("usb: ehci-orion: add optional PHY support")
   7 added support for optional phys, but devm_phy_optional_get returns
   8 -ENOSYS if GENERIC_PHY is not enabled.
   9
  10 This causes probe failures, even when there are no phys specified:
  11
  12 [    1.443365] orion-ehci f1058000.usb: init f1058000.usb fail, -38
  13 [    1.449403] orion-ehci: probe of f1058000.usb failed with error -38
  14
  15 Similar to dwc3, treat -ENOSYS as no phy.
  16
  17 Fixes: d445913ce0ab7f ("usb: ehci-orion: add optional PHY support")
  18
  19 Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  20 ---
  21  drivers/usb/host/ehci-orion.c | 3 ++-
  22  1 file changed, 2 insertions(+), 1 deletion(-)
  23
  24 --- a/drivers/usb/host/ehci-orion.c
  25 +++ b/drivers/usb/host/ehci-orion.c
  26 @@ -226,7 +226,8 @@ static int ehci_orion_drv_probe(struct p
  27         priv->phy = devm_phy_optional_get(&pdev->dev, "usb");
  28         if (IS_ERR(priv->phy)) {
  29                 err = PTR_ERR(priv->phy);
  30 -               goto err_phy_get;
  31 +               if (err != -ENOSYS)
  32 +                       goto err_phy_get;
  33         } else {
  34                 err = phy_init(priv->phy);
  35                 if (err)