Add new PHY attribute max_link_rate to struct phy_attrs. Add a pair of PHY APIs to get/set all the PHY attributes. Use phy_get_attrs() to get attribute values and phy_set_attrs() to set attribute values.
Signed-off-by: Yuti Amonkar <[email protected]> Signed-off-by: Swapnil Jakhade <[email protected]> Acked-by: Kishon Vijay Abraham I <[email protected]> --- include/linux/phy/phy.h | 43 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index bcee8eba62b3..924cd1a3deea 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -115,10 +115,12 @@ struct phy_ops { /** * struct phy_attrs - represents phy attributes * @bus_width: Data path width implemented by PHY + * @max_link_rate: Maximum link rate supported by PHY (in Mbps) * @mode: PHY mode */ struct phy_attrs { u32 bus_width; + u32 max_link_rate; enum phy_mode mode; }; @@ -231,6 +233,37 @@ static inline void phy_set_bus_width(struct phy *phy, int bus_width) { phy->attrs.bus_width = bus_width; } + +/** + * phy_get_attrs() - get the values for PHY attributes. + * @phy: the phy for which to get the attributes + * @attrs: current PHY attributes that will be returned + * + * Intended to be used by phy consumers to get the current PHY attributes + * stored in struct phy_attrs. + */ +static inline void phy_get_attrs(struct phy *phy, struct phy_attrs *attrs) +{ + mutex_lock(&phy->mutex); + memcpy(attrs, &phy->attrs, sizeof(struct phy_attrs)); + mutex_unlock(&phy->mutex); +} + +/** + * phy_set_attrs() - set PHY attributes with new values. + * @phy: the phy for which to set the attributes + * @attrs: the &struct phy_attrs containing new PHY attributes to be set + * + * This can be used by PHY providers or PHY consumers to set the PHY + * attributes. The locking is used to protect updating attributes when + * PHY consumer is doing some PHY ops. + */ +static inline void phy_set_attrs(struct phy *phy, const struct phy_attrs *attrs) +{ + mutex_lock(&phy->mutex); + memcpy(&phy->attrs, attrs, sizeof(struct phy_attrs)); + mutex_unlock(&phy->mutex); +} 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 +422,16 @@ 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, const struct phy_attrs *attrs) +{ + return; +} + static inline struct phy *phy_get(struct device *dev, const char *string) { return ERR_PTR(-ENOSYS); -- 2.26.1
