From: Florian Fainelli Date: Tue, 26 May 2015 19:19:58 +0000 (-0700) Subject: net: phy: Add phy_interface_is_rgmii helper X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e463d88c36d42211aa72ed76d32fb8bf37820ef1;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git net: phy: Add phy_interface_is_rgmii helper RGMII interfaces come in 4 different flavors that the PHY library needs to care about: regular RGMII (no delays), RGMII with either RX or TX delay, and both. In order to avoid errors of checking only for one type of RGMII interface and miss the 3 others, introduce a convenience function which tests for all values. Suggested-by: David S. Miller Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- diff --git a/include/linux/phy.h b/include/linux/phy.h index 701c7a3946e0..a26c3f84b8dd 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -677,6 +677,17 @@ static inline bool phy_is_internal(struct phy_device *phydev) return phydev->is_internal; } +/** + * phy_interface_is_rgmii - Convenience function for testing if a PHY interface + * is RGMII (all variants) + * @phydev: the phy_device struct + */ +static inline bool phy_interface_is_rgmii(struct phy_device *phydev) +{ + return phydev->interface >= PHY_INTERFACE_MODE_RGMII && + phydev->interface <= PHY_INTERFACE_MODE_RGMII_TXID; +} + /** * phy_write_mmd - Convenience function for writing a register * on an MMD on a given PHY.