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net: phy: phylink: Allow setting a custom link state callback

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phylink_get_fixed_state() currently consults an optional "link_gpio"
GPIO descriptor, expand this mechanism to allow specifying a custom
callback. This is necessary to support out of band link notifcation
(e.g: from an interrupt within a MMIO register).

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli
2017-12-12 16:00:28 -08:00
committed by David S. Miller
parent d38b4afd51
commit 1ac63e392e
2 changed files with 35 additions and 2 deletions
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include/linux/phylink.h
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@@ -190,6 +190,9 @@ void phylink_destroy(struct phylink *);
int phylink_connect_phy(struct phylink *, struct phy_device *);
int phylink_of_phy_connect(struct phylink *, struct device_node *, u32 flags);
void phylink_disconnect_phy(struct phylink *);
int phylink_fixed_state_cb(struct phylink *,
void (*cb)(struct net_device *dev,
struct phylink_link_state *));
void phylink_mac_change(struct phylink *, bool up);