kernel: bump 4.14 to 4.14.93
[openwrt/staging/chunkeey.git] / target / linux / brcm2708 / patches-4.14 / 950-0251-lan78xx-Read-initial-EEE-status-from-DT.patch
1 From 519f76313689c7e2f03da2e7c91e3c75e68c9034 Mon Sep 17 00:00:00 2001
2 From: Phil Elwell <phil@raspberrypi.org>
3 Date: Fri, 9 Mar 2018 12:01:00 +0000
4 Subject: [PATCH 251/454] lan78xx: Read initial EEE status from DT
5
6 Add two new DT properties:
7 * microchip,eee-enabled - a boolean to enable EEE
8 * microchip,tx-lpi-timer - time in microseconds to wait before entering
9 low power state
10
11 Signed-off-by: Phil Elwell <phil@raspberrypi.org>
12 ---
13 drivers/net/usb/lan78xx.c | 16 ++++++++++++++++
14 1 file changed, 16 insertions(+)
15
16 --- a/drivers/net/usb/lan78xx.c
17 +++ b/drivers/net/usb/lan78xx.c
18 @@ -2514,6 +2514,22 @@ static int lan78xx_open(struct net_devic
19
20 netif_dbg(dev, ifup, dev->net, "phy initialised successfully");
21
22 + if (of_property_read_bool(dev->udev->dev.of_node,
23 + "microchip,eee-enabled")) {
24 + struct ethtool_eee edata;
25 + memset(&edata, 0, sizeof(edata));
26 + edata.cmd = ETHTOOL_SEEE;
27 + edata.advertised = ADVERTISED_1000baseT_Full |
28 + ADVERTISED_100baseT_Full;
29 + edata.eee_enabled = true;
30 + edata.tx_lpi_enabled = true;
31 + if (of_property_read_u32(dev->udev->dev.of_node,
32 + "microchip,tx-lpi-timer",
33 + &edata.tx_lpi_timer))
34 + edata.tx_lpi_timer = 600; /* non-aggressive */
35 + (void)lan78xx_set_eee(net, &edata);
36 + }
37 +
38 /* for Link Check */
39 if (dev->urb_intr) {
40 ret = usb_submit_urb(dev->urb_intr, GFP_KERNEL);