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lan78xx: Read initial EEE status from DT

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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>
This commit is contained in:
Phil Elwell
2018-03-09 12:01:00 +00:00
committed by popcornmix
parent 8f86566e14
commit 30b3b147d3
1 changed files with 16 additions and 0 deletions
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16
drivers/net/usb/lan78xx.c
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@@ -2635,6 +2635,22 @@ static int lan78xx_open(struct net_device *net)
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);