net: phy: add phy_can_wakeup()

Add phy_can_wakeup() to report whether the PHY driver has marked the
PHY device as being wake-up capable as far as the driver model is
concerned.

Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1vBrQs-0000000BLzI-0w3U@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/include/linux/phy.h b/include/linux/phy.h
index 3c7634482356e25549f927be09784845633735ac..3eeeaec52832072c1696f730b8ba74a3ecc532f2 100644 (file)
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1379,6 +1379,18 @@ static inline void phy_disable_eee_mode(struct phy_device *phydev, u32 link_mode
        linkmode_clear_bit(link_mode, phydev->advertising_eee);
 }
 
+/**
+ * phy_can_wakeup() - indicate whether PHY has driver model wakeup capabilities
+ * @phydev: The phy_device struct
+ *
+ * Returns: true/false depending on the PHY driver's device_set_wakeup_capable()
+ * setting.
+ */
+static inline bool phy_can_wakeup(struct phy_device *phydev)
+{
+       return device_can_wakeup(&phydev->mdio.dev);
+}
+
 void phy_resolve_aneg_pause(struct phy_device *phydev);
 void phy_resolve_aneg_linkmode(struct phy_device *phydev);