| From 6b4370dc812a5a982b687730e7d6f4f11626408f Mon Sep 17 00:00:00 2001 |
| From: Phil Elwell <phil@raspberrypi.org> |
| 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 <phil@raspberrypi.org> |
| --- |
| drivers/net/usb/lan78xx.c | 16 ++++++++++++++++ |
| 1 file changed, 16 insertions(+) |
| |
| --- a/drivers/net/usb/lan78xx.c |
| +++ b/drivers/net/usb/lan78xx.c |
| @@ -2617,6 +2617,22 @@ 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); |