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| author | Maxime Ripard <maxime@cerno.tech> | 2021-05-11 13:35:52 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2021-05-11 13:35:52 +0200 |
| commit | c55b44c9386f3ee1b08752638559f19deaf6040d (patch) | |
| tree | c843a21f45180387fcd9eb2625cc9d1f166a3156 /drivers/net/phy/phy-c45.c | |
| parent | MAINTAINERS: Update my e-mail (diff) | |
| parent | Linux 5.13-rc1 (diff) | |
| download | linux-c55b44c9386f3ee1b08752638559f19deaf6040d.tar.xz linux-c55b44c9386f3ee1b08752638559f19deaf6040d.zip | |
Merge drm/drm-fixes into drm-misc-fixes
Start this new release drm-misc-fixes branch
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'drivers/net/phy/phy-c45.c')
| -rw-r--r-- | drivers/net/phy/phy-c45.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/net/phy/phy-c45.c b/drivers/net/phy/phy-c45.c index 077f2929c45e..f4816b7d31b3 100644 --- a/drivers/net/phy/phy-c45.c +++ b/drivers/net/phy/phy-c45.c @@ -9,6 +9,49 @@ #include <linux/phy.h> /** + * genphy_c45_pma_can_sleep - checks if the PMA have sleep support + * @phydev: target phy_device struct + */ +static bool genphy_c45_pma_can_sleep(struct phy_device *phydev) +{ + int stat1; + + stat1 = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_STAT1); + if (stat1 < 0) + return false; + + return !!(stat1 & MDIO_STAT1_LPOWERABLE); +} + +/** + * genphy_c45_pma_resume - wakes up the PMA module + * @phydev: target phy_device struct + */ +int genphy_c45_pma_resume(struct phy_device *phydev) +{ + if (!genphy_c45_pma_can_sleep(phydev)) + return -EOPNOTSUPP; + + return phy_clear_bits_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1, + MDIO_CTRL1_LPOWER); +} +EXPORT_SYMBOL_GPL(genphy_c45_pma_resume); + +/** + * genphy_c45_pma_suspend - suspends the PMA module + * @phydev: target phy_device struct + */ +int genphy_c45_pma_suspend(struct phy_device *phydev) +{ + if (!genphy_c45_pma_can_sleep(phydev)) + return -EOPNOTSUPP; + + return phy_set_bits_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1, + MDIO_CTRL1_LPOWER); +} +EXPORT_SYMBOL_GPL(genphy_c45_pma_suspend); + +/** * genphy_c45_pma_setup_forced - configures a forced speed * @phydev: target phy_device struct */ @@ -560,6 +603,14 @@ int gen10g_config_aneg(struct phy_device *phydev) } EXPORT_SYMBOL_GPL(gen10g_config_aneg); +int genphy_c45_loopback(struct phy_device *phydev, bool enable) +{ + return phy_modify_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL1, + MDIO_PCS_CTRL1_LOOPBACK, + enable ? MDIO_PCS_CTRL1_LOOPBACK : 0); +} +EXPORT_SYMBOL_GPL(genphy_c45_loopback); + struct phy_driver genphy_c45_driver = { .phy_id = 0xffffffff, .phy_id_mask = 0xffffffff, |