From 1ddf09acee075f2c805e57e925d5df17fa82ece7 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Tue, 11 Jun 2024 16:44:07 +0100 Subject: [PATCH 478/697] lan78xx: Read initial EEE status from DT Add two new DT properties: * microchip,eee-enabled - a boolean to enable EEE * microchip,tx-lpi-timer - time in microseconds to wait before entering low power state Signed-off-by: Phil Elwell --- drivers/net/usb/lan78xx.c | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -2422,7 +2422,26 @@ static int lan78xx_phy_init(struct lan78 mii_adv_to_linkmode_adv_t(fc, mii_adv); linkmode_or(phydev->advertising, fc, phydev->advertising); - phy_support_eee(phydev); + if (of_property_read_bool(phydev->mdio.dev.of_node, + "microchip,eee-enabled")) { + struct ethtool_keee edata; + memset(&edata, 0, sizeof(edata)); + + linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, + edata.advertised); + linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, + edata.advertised); + + edata.eee_enabled = true; + edata.tx_lpi_enabled = true; + if (of_property_read_u32(phydev->mdio.dev.of_node, + "microchip,tx-lpi-timer", + &edata.tx_lpi_timer)) + edata.tx_lpi_timer = 600; /* non-aggressive */ + (void)lan78xx_set_eee(dev->net, &edata); + + phy_support_eee(phydev); + } if (phydev->mdio.dev.of_node) { u32 reg;