openwrt_archive/target/linux/brcm47xx/patches-4.1/791-tg3-no-pci-sleep.patch
Hauke Mehrtens 4e76b4ccb0 brcm47xx: add support for kernel 4.1
This adds support for kernel 4.1 and removes kernel 4.0.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


SVN-Revision: 46166
2015-07-03 23:18:33 +00:00

18 lines
712 B
Diff

When the Ethernet controller is powered down and someone wants to
access the mdio bus like the witch driver (b53) the system crashed if
PCI_D3hot was set before. This patch deactivates this power sawing mode
when a switch driver is in use.
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -4263,7 +4263,8 @@ static int tg3_power_down_prepare(struct
static void tg3_power_down(struct tg3 *tp)
{
pci_wake_from_d3(tp->pdev, tg3_flag(tp, WOL_ENABLE));
- pci_set_power_state(tp->pdev, PCI_D3hot);
+ if (!tg3_flag(tp, ROBOSWITCH))
+ pci_set_power_state(tp->pdev, PCI_D3hot);
}
static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u16 *speed, u8 *duplex)