Message ID | CY4PR1701MB1878D8AA63E4EBB99759B838DF160@CY4PR1701MB1878.namprd17.prod.outlook.com |
---|---|
State | Changes Requested |
Delegated to: | David Miller |
Headers | show |
Series | [net,1/4] net:phy:smsc: enable PHY_RST_AFTER_CLK_EN if ref clock is not set | expand |
Context | Check | Description |
---|---|---|
jkicinski/cover_letter | warning | Series does not have a cover letter |
jkicinski/fixes_present | success | Link |
jkicinski/patch_count | success | Link |
jkicinski/tree_selection | success | Clearly marked for net |
jkicinski/subject_prefix | success | Link |
jkicinski/source_inline | success | Was 0 now: 0 |
jkicinski/verify_signedoff | success | Link |
jkicinski/module_param | success | Was 0 now: 0 |
jkicinski/build_32bit | fail | Errors and warnings before: 897 this patch: 899 |
jkicinski/kdoc | success | Errors and warnings before: 2 this patch: 2 |
jkicinski/verify_fixes | success | Link |
jkicinski/checkpatch | fail | Link |
jkicinski/build_allmodconfig_warn | fail | Errors and warnings before: 792 this patch: 794 |
jkicinski/header_inline | success | Link |
jkicinski/stable | success | Stable not CCed |
diff --git a/drivers/net/phy/mdio_device.c b/drivers/net/phy/mdio_device.c index 0837319a52d7..4909feb57027 100644 --- a/drivers/net/phy/mdio_device.c +++ b/drivers/net/phy/mdio_device.c @@ -136,6 +136,24 @@ void mdio_device_reset(struct mdio_device *mdiodev, int value) } EXPORT_SYMBOL(mdio_device_reset); +/** + * mdio_device_reset_status - returns the reset status of an MDIO device + * + * Returns >0 if the reset line is asserted, 0 if it is not asserted + and <0 on error. + */ +int mdio_device_reset_status(struct mdio_device *mdiodev) +{ + if (mdiodev->reset_gpio) + return gpiod_get_value_cansleep(mdiodev->reset_gpio); + + if (mdiodev->reset_ctrl) + return reset_control_status(mdiodev->reset_ctrl); + + return -EOPNOTSUPP; +} +EXPORT_SYMBOL(mdio_device_reset_status); + /** * mdio_probe - probe an MDIO device * @dev: device to probe diff --git a/include/linux/mdio.h b/include/linux/mdio.h index dbd69b3d170b..179c5bdd90e8 100644 --- a/include/linux/mdio.h +++ b/include/linux/mdio.h @@ -92,6 +92,7 @@ struct mdio_device *mdio_device_create(struct mii_bus *bus, int addr); int mdio_device_register(struct mdio_device *mdiodev); void mdio_device_remove(struct mdio_device *mdiodev); void mdio_device_reset(struct mdio_device *mdiodev, int value); +int mdio_device_reset_status(struct mdio_device *mdiodev); int mdio_driver_register(struct mdio_driver *drv); void mdio_driver_unregister(struct mdio_driver *drv); int mdio_device_bus_match(struct device *dev, struct device_driver *drv); diff --git a/include/linux/phy.h b/include/linux/phy.h index eb3cb1a98b45..e12b90db9852 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -1461,6 +1461,11 @@ static inline void phy_device_reset(struct phy_device *phydev, int value) mdio_device_reset(&phydev->mdio, value); } +static inline int phy_device_reset_status(struct phy_device *phydev) +{ + return mdio_device_reset_status(&phydev->mdio); +} + #define phydev_err(_phydev, format, args...) \ dev_err(&_phydev->mdio.dev, format, ##args)
Subject: [PATCH net 3/4] net:phy: add phy_device_reset_status() support Description: add support to query the status of the reset line of an MDIO device. Signed-off-by: Laurent Badel <laurentbadel@eaton.com> --- drivers/net/phy/mdio_device.c | 18 ++++++++++++++++++ include/linux/mdio.h | 1 + include/linux/phy.h | 5 +++++ 3 files changed, 24 insertions(+)