PHY: Add function set_speed to generic PHY framework This patch adds function set_speed to the generic PHY framework operation structure. This function can be called to instruct the PHY underlying layer at specified lane to configure for specified speed in hertz.
Signed-off-by: Loc Ho <[email protected]> --- include/linux/phy/phy.h | 22 ++++++++++++++++++++++ 1 files changed, 22 insertions(+), 0 deletions(-) diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index 9351a16..df9b1d1 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -32,6 +32,7 @@ struct phy; * @exit: operation to be performed while exiting * @power_on: powering on the phy * @power_off: powering off the phy + * @set_speed: set operation speed in hz * @owner: the module owner containing the ops */ struct phy_ops { @@ -39,6 +40,7 @@ struct phy_ops { int (*exit)(struct phy *phy); int (*power_on)(struct phy *phy); int (*power_off)(struct phy *phy); + int (*set_speed)(struct phy *phy, int lane, u64 speed); struct module *owner; }; @@ -341,4 +343,24 @@ out: return ret; } +static inline int phy_set_speed(struct phy *phy, int lane, u64 speed) +{ + int ret = -ENOTSUPP; + + mutex_lock(&phy->mutex); + if (phy->ops->set_speed) { + ret = phy->ops->set_speed(phy, lane, speed); + if (ret < 0) { + dev_err(&phy->dev, "phy set speed failed --> %d\n", + ret); + goto out; + } + } + +out: + mutex_unlock(&phy->mutex); + + return ret; +} + #endif /* __DRIVERS_PHY_H */ -- 1.5.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
