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| author | Jouni Malinen <jouni.malinen@atheros.com> | 2009-06-16 10:59:23 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-06-19 17:50:18 +0200 |
| commit | 8451d22dad40a66416b8d9c0952efa09ec5398c5 (patch) | |
| tree | 4e302f427f3ef745ea6393a075873755995a29a4 /drivers | |
| parent | rfkill: export persistent attribute in sysfs (diff) | |
| download | linux-8451d22dad40a66416b8d9c0952efa09ec5398c5.tar.xz linux-8451d22dad40a66416b8d9c0952efa09ec5398c5.zip | |
ath5k: avoid PCI FATAL interrupts by restoring RETRY_TIMEOUT disabling
This reverts 'ath5k: remove dummy PCI "retry timeout" fix' on the
same theory as in 'ath9k: Fix PCI FATAL interrupts by restoring
RETRY_TIMEOUT disabling'.
Reported-by: Bob Copeland <me@bobcopeland.com>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ath/ath5k/base.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c index 55f7de09d134..fc5ba0e3a681 100644 --- a/drivers/net/wireless/ath/ath5k/base.c +++ b/drivers/net/wireless/ath/ath5k/base.c @@ -686,6 +686,13 @@ ath5k_pci_resume(struct pci_dev *pdev) if (err) return err; + /* + * Suspend/Resume resets the PCI configuration space, so we have to + * re-disable the RETRY_TIMEOUT register (0x41) to keep + * PCI Tx retries from interfering with C3 CPU state + */ + pci_write_config_byte(pdev, 0x41, 0); + err = request_irq(pdev->irq, ath5k_intr, IRQF_SHARED, "ath", sc); if (err) { ATH5K_ERR(sc, "request_irq failed\n"); |