net: phy: add supported_interfaces to phylib

Add a supported_interfaces member to phylib so we know which
interfaces a PHY supports. Currently, set any unconverted driver
to indicate all interfaces are supported.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

1 files changed, 23 insertions, 0 deletions

diff --git a/include/linux/phy.h b/include/linux/phy.h
index d929683db8ce..1359c164a3af 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -112,6 +112,26 @@ typedef enum {
 	PHY_INTERFACE_MODE_MAX,
 } phy_interface_t;
 
+/* PHY interface mode bitmap handling */
+#define DECLARE_PHY_INTERFACE_MASK(name) \
+	DECLARE_BITMAP(name, PHY_INTERFACE_MODE_MAX)
+
+static inline void phy_interface_zero(unsigned long *intf)
+{
+	bitmap_zero(intf, PHY_INTERFACE_MODE_MAX);
+}
+
+static inline bool phy_interface_empty(const unsigned long *intf)
+{
+	return bitmap_empty(intf, PHY_INTERFACE_MODE_MAX);
+}
+
+static inline void phy_interface_and(unsigned long *dst, const unsigned long *a,
+				     const unsigned long *b)
+{
+	bitmap_and(dst, a, b, PHY_INTERFACE_MODE_MAX);
+}
+
 /**
  * phy_supported_speeds - return all speeds currently supported by a phy device
  * @phy: The phy device to return supported speeds of.
@@ -447,6 +467,9 @@ struct phy_device {
 	/* used with phy_speed_down */
 	__ETHTOOL_DECLARE_LINK_MODE_MASK(adv_old);
 
+	/* bitmap of supported interfaces */
+	DECLARE_PHY_INTERFACE_MASK(supported_interfaces);
+
 	/* Energy efficient ethernet modes which should be prohibited */
 	u32 eee_broken_modes;