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authorFlorian Fainelli <f.fainelli@gmail.com>2017-03-05 23:34:49 +0300
committerDavid S. Miller <davem@davemloft.net>2017-03-06 04:57:27 +0300
commit0878fff1f42c18e448ab5b8b4f6a3eb32365b5b6 (patch)
tree5e5a0765be73afca26e683014671e4b884d9695a /include/linux/phy.h
parentf38837b08d23e66de17d46d030e0d9ac5172ad1f (diff)
downloadlinux-0878fff1f42c18e448ab5b8b4f6a3eb32365b5b6.tar.xz
net: phy: Do not perform software reset for Generic PHY
The Generic PHY driver is a catch-all PHY driver and it should preserve whatever prior initialization has been done by boot loader or firmware agents. For specific PHY device configuration it is expected that a specialized PHY driver would take over that role. Resetting the generic PHY was a bad idea that has lead to several complaints and downstream workarounds e.g: in OpenWrt/LEDE so restore the behavior prior to 87aa9f9c61ad ("net: phy: consolidate PHY reset in phy_init_hw()"). Reported-by: Felix Fietkau <nbd@nbd.name> Fixes: 87aa9f9c61ad ("net: phy: consolidate PHY reset in phy_init_hw()") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/phy.h')
-rw-r--r--include/linux/phy.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 772476028a65..43a774873aa9 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -837,6 +837,10 @@ int genphy_read_status(struct phy_device *phydev);
int genphy_suspend(struct phy_device *phydev);
int genphy_resume(struct phy_device *phydev);
int genphy_soft_reset(struct phy_device *phydev);
+static inline int genphy_no_soft_reset(struct phy_device *phydev)
+{
+ return 0;
+}
void phy_driver_unregister(struct phy_driver *drv);
void phy_drivers_unregister(struct phy_driver *drv, int n);
int phy_driver_register(struct phy_driver *new_driver, struct module *owner);