From b0255a02351b00ca55f4eb2588d05a5db9dd1a58 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Fri, 24 Sep 2010 23:57:02 +0000 Subject: [PATCH] de2104x: fix power management At least my 21041 cards come out of suspend with bus mastering disabled so they did not work after resume(no data transferred). After adding pci_set_master(), the driver oopsed immediately on resume - because de_clean_rings() is called on suspend but de_init_rings() call was missing in resume. Also disable link (reset SIA) before sleep (de4x5 does this too). Signed-off-by: Ondrej Zary Acked-by: Jeff Garzik Signed-off-by: David S. Miller --- drivers/net/tulip/de2104x.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c index 9d6b7e9c7a6b..a0be7c28c587 100644 --- a/drivers/net/tulip/de2104x.c +++ b/drivers/net/tulip/de2104x.c @@ -1231,6 +1231,7 @@ static void de_adapter_sleep (struct de_private *de) if (de->de21040) return; + dw32(CSR13, 0); /* Reset phy */ pci_read_config_dword(de->pdev, PCIPM, &pmctl); pmctl |= PM_Sleep; pci_write_config_dword(de->pdev, PCIPM, pmctl); @@ -2166,6 +2167,8 @@ static int de_resume (struct pci_dev *pdev) dev_err(&dev->dev, "pci_enable_device failed in resume\n"); goto out; } + pci_set_master(pdev); + de_init_rings(de); de_init_hw(de); out_attach: netif_device_attach(dev); -- 2.20.1