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 <da...@davemloft.net>
Signed-off-by: Florian Fainelli <f.faine...@gmail.com>
---
include/linux/phy.h | 11 +++++++++++
1 file changed, 11 insertions(+)
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
@@ -678,6 +678,17 @@ static inline bool phy_is_internal(struct phy_device
*phydev)
}
/**
+ * 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.
* @phydev: The phy_device struct
--
2.1.0
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