The patch adds a pair of APIs that allows generic PHY subsystem to get/set PHY attributes supported by the PHY. The PHY provider driver may use phy_set_attrs() to set phy attributes that the PHY supports. The controller driver may then use phy_get_attrs() to fetch the PHY attributes to properly configure the controller.
Signed-off-by: Yuti Amonkar <[email protected]> --- include/linux/phy/phy.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index bcee8eba62b3..48693321ae36 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -119,6 +119,7 @@ struct phy_ops { */ struct phy_attrs { u32 bus_width; + u32 max_link_rate; enum phy_mode mode; }; @@ -231,6 +232,20 @@ static inline void phy_set_bus_width(struct phy *phy, int bus_width) { phy->attrs.bus_width = bus_width; } + +static inline void phy_get_attrs(struct phy *phy, struct phy_attrs *attrs) +{ + attrs->bus_width = phy->attrs.bus_width; + attrs->max_link_rate = phy->attrs.max_link_rate; + attrs->mode = phy->attrs.mode; +} + +static inline void phy_set_attrs(struct phy *phy, struct phy_attrs attrs) +{ + phy->attrs.bus_width = attrs.bus_width; + phy->attrs.max_link_rate = attrs.max_link_rate; + phy->attrs.mode = attrs.mode; +} struct phy *phy_get(struct device *dev, const char *string); struct phy *phy_optional_get(struct device *dev, const char *string); struct phy *devm_phy_get(struct device *dev, const char *string); @@ -389,6 +404,16 @@ static inline void phy_set_bus_width(struct phy *phy, int bus_width) return; } +static inline void phy_get_attrs(struct phy *phy, struct phy_attrs *attrs) +{ + return; +} + +static inline void phy_set_attrs(struct phy *phy, struct phy_attrs attrs) +{ + return; +} + static inline struct phy *phy_get(struct device *dev, const char *string) { return ERR_PTR(-ENOSYS); -- 2.17.1
