From 9155098547fb1172d4fa536f3f6bc9d42f59d08c Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Sat, 22 Apr 2023 03:26:01 +0100 Subject: [PATCH] net: phy: realtek: setup ALDPS on RTL822x Setup Link Down Power Saving Mode according the DTS property just like for RTL821x 1GE PHYs. Signed-off-by: Daniel Golle --- drivers/net/phy/realtek.c | 11 +++++++++++ 1 file changed, 11 insertions(+) --- a/drivers/net/phy/realtek.c +++ b/drivers/net/phy/realtek.c @@ -62,6 +62,10 @@ #define RTL8221B_SERDES_OPTION_MODE_2500BASEX 2 #define RTL8221B_SERDES_OPTION_MODE_HISGMII 3 +#define RTL8221B_PHYCR1 0xa430 +#define RTL8221B_PHYCR1_ALDPS_EN BIT(2) +#define RTL8221B_PHYCR1_ALDPS_XTAL_OFF_EN BIT(12) + #define RTL8366RB_POWER_SAVE 0x15 #define RTL8366RB_POWER_SAVE_ON BIT(12) @@ -740,6 +744,25 @@ static int rtl8226_match_phy_device(stru rtlgen_supports_2_5gbps(phydev); } +static int rtl822x_probe(struct phy_device *phydev) +{ + struct device *dev = &phydev->mdio.dev; + int val; + + val = phy_read_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, RTL8221B_PHYCR1); + if (val < 0) + return val; + + if (of_property_read_bool(dev->of_node, "realtek,aldps-enable")) + val |= RTL8221B_PHYCR1_ALDPS_EN | RTL8221B_PHYCR1_ALDPS_XTAL_OFF_EN; + else + val &= ~(RTL8221B_PHYCR1_ALDPS_EN | RTL8221B_PHYCR1_ALDPS_XTAL_OFF_EN); + + phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, RTL8221B_PHYCR1, val); + + return 0; +} + static int rtlgen_resume(struct phy_device *phydev) { int ret = genphy_resume(phydev); @@ -1039,6 +1062,7 @@ static struct phy_driver realtek_drvs[] .name = "RTL8226-CG 2.5Gbps PHY", .get_features = rtl822x_get_features, .config_aneg = rtl822x_config_aneg, + .probe = rtl822x_probe, .read_status = rtl822x_read_status, .suspend = genphy_suspend, .resume = rtlgen_resume, @@ -1050,6 +1074,7 @@ static struct phy_driver realtek_drvs[] .name = "RTL8226B-CG_RTL8221B-CG 2.5Gbps PHY", .get_features = rtl822x_get_features, .config_aneg = rtl822x_config_aneg, + .probe = rtl822x_probe, .read_status = rtl822x_read_status, .suspend = genphy_suspend, .resume = rtlgen_resume, @@ -1062,6 +1087,7 @@ static struct phy_driver realtek_drvs[] .get_features = rtl822x_get_features, .config_init = rtl8221b_config_init, .config_aneg = rtl822x_config_aneg, + .probe = rtl822x_probe, .read_status = rtl822x_read_status, .suspend = genphy_suspend, .resume = rtlgen_resume, @@ -1074,6 +1100,7 @@ static struct phy_driver realtek_drvs[] .get_features = rtl822x_get_features, .config_aneg = rtl822x_config_aneg, .config_init = rtl8221b_config_init, + .probe = rtl822x_probe, .read_status = rtl822x_read_status, .suspend = genphy_suspend, .resume = rtlgen_resume,