2021-08-21 08:54:34 +00:00
|
|
|
From 1fbf5f72be35918230b0bbdff3bcf44318f1374a 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
|
2021-08-28 11:40:00 +00:00
|
|
|
@@ -2643,6 +2643,22 @@ static int lan78xx_open(struct net_devic
|
2021-08-21 08:54:34 +00:00
|
|
|
|
|
|
|
|
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);
|
