From d245af88863535487d925188a59e93f93f2e39b4 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Fri, 9 Mar 2018 12:01:00 +0000 Subject: [PATCH] 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 | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -3108,6 +3108,22 @@ static int lan78xx_open(struct net_devic netif_dbg(dev, ifup, dev->net, "phy initialised successfully"); + if (of_property_read_bool(dev->udev->dev.of_node, + "microchip,eee-enabled")) { + struct ethtool_eee edata; + memset(&edata, 0, sizeof(edata)); + edata.cmd = ETHTOOL_SEEE; + edata.advertised = ADVERTISED_1000baseT_Full | + ADVERTISED_100baseT_Full; + edata.eee_enabled = true; + edata.tx_lpi_enabled = true; + if (of_property_read_u32(dev->udev->dev.of_node, + "microchip,tx-lpi-timer", + &edata.tx_lpi_timer)) + edata.tx_lpi_timer = 600; /* non-aggressive */ + (void)lan78xx_set_eee(net, &edata); + } + /* for Link Check */ if (dev->urb_intr) { ret = usb_submit_urb(dev->urb_intr, GFP_KERNEL);