openwrtv4/target/linux/generic/patches-3.18/191-usb-ehci-orion-fix-probe-for-GENERIC_PHY.patch
Jonas Gorski 2190f090bb mvebu: kirkwood: fix ehci-orion probe if generic-phy isn't enabled
Properly treat -ENOSYS as no PHY, else ehci-orion won't work without
generic phy support.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 46711
2015-08-23 13:35:03 +00:00

35 lines
1.2 KiB
Diff

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