openwrt/target/linux/bcm47xx/patches-6.6/791-tg3-no-pci-sleep.patch
Mieczyslaw Nalewaj 907c1c5fe1 kernel/bcm47xx: Create kernel files for v6.6 (from v6.1)
This is an automatically generated commit.

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Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
Link: https://github.com/openwrt/openwrt/pull/15010
Signed-off-by: Robert Marko <robimarko@gmail.com>
2024-06-03 17:57:54 +02:00

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
@@ -4269,7 +4269,8 @@ 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)