openwrt/target/linux/bcm47xx/patches-5.15/791-tg3-no-pci-sleep.patch
Hauke Mehrtens 18e6df83bb bcm47xx: Refresh kernel 5.15
This makes the patches and the kernel configuration apply on top of
kernel 5.15.

The following patch was removed because the old IDE subsystem was
removed from upstream kernel:
target/linux/bcm47xx/patches-5.15/610-pci_ide_fix.patch

This was tested successfully on a ASUS WL-500g Premium V1.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2023-02-03 11:59:07 +01:00

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
@@ -4267,7 +4267,8 @@ 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, u32 *speed, u8 *duplex)