path: root/include/linux/phy.h
diff options
authorHeiner Kallweit <hkallweit1@gmail.com>2020-03-12 22:25:20 +0100
committerDavid S. Miller <davem@davemloft.net>2020-03-12 15:36:12 -0700
commit611d779af7cad2b87487ff58e4931a90c20b113c (patch)
tree382177a2a8158add5d4d5950044888912b07a32b /include/linux/phy.h
parentMerge branch 'hns3-fixes' (diff)
net: phy: fix MDIO bus PM PHY resuming
So far we have the unfortunate situation that mdio_bus_phy_may_suspend() is called in suspend AND resume path, assuming that function result is the same. After the original change this is no longer the case, resulting in broken resume as reported by Geert. To fix this call mdio_bus_phy_may_suspend() in the suspend path only, and let the phy_device store the info whether it was suspended by MDIO bus PM. Fixes: 503ba7c69610 ("net: phy: Avoid multiple suspends") Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/phy.h')
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 22f5e763e894..452e8ba8665f 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -357,6 +357,7 @@ struct macsec_ops;
* is_gigabit_capable: Set to true if PHY supports 1000Mbps
* has_fixups: Set to true if this phy has fixups/quirks.
* suspended: Set to true if this phy has been suspended successfully.
+ * suspended_by_mdio_bus: Set to true if this phy was suspended by MDIO bus.
* sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal.
* loopback_enabled: Set true if this phy has been loopbacked successfully.
* state: state of the PHY for management purposes
@@ -396,6 +397,7 @@ struct phy_device {
unsigned is_gigabit_capable:1;
unsigned has_fixups:1;
unsigned suspended:1;
+ unsigned suspended_by_mdio_bus:1;
unsigned sysfs_links:1;
unsigned loopback_enabled:1;