kernel: bump 4.19 to 4.19.101
[oweals/openwrt.git] / target / linux / brcm2708 / patches-4.19 / 950-0120-lan78xx-Read-initial-EEE-status-from-DT.patch
1 From 26c3806ff17c6a7ed61ba127af36271390e86c89 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] 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 @@ -2659,6 +2659,22 @@ 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);