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| author | Luis R. Rodriguez <lrodriguez@atheros.com> | 2009-03-12 18:18:51 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-03-27 20:12:46 -0400 |
| commit | b572b24c578ab1be9d1fcb11d2d8244878757a66 (patch) | |
| tree | 1fc07a22a7b4428fc77b17948f09c1877697cfcb | |
| parent | 4ed96f04f8a1869757f4dd4a9283a18ec63c442f (diff) | |
| download | linux-stable-b572b24c578ab1be9d1fcb11d2d8244878757a66.tar.gz linux-stable-b572b24c578ab1be9d1fcb11d2d8244878757a66.tar.bz2 linux-stable-b572b24c578ab1be9d1fcb11d2d8244878757a66.zip | |
ath9k: remove dummy PCI "retry timeout" fix
Remove the PCI retry timeout code as that was just taken from ipw2100
due to historical reasons but in reality its a no-op, additionally its
simply incorrect as each PCI devices has its own custom PCI configuration
space on PCI config space >= 0x40. Not to mention we were trying to write
0 to a place that already has 0 on it.
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Ben Cahill <ben.m.cahill@intel.com>
Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Tested-by: Adel Gadllah <adel.gadllah@gmail.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/ath9k/pci.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/drivers/net/wireless/ath9k/pci.c b/drivers/net/wireless/ath9k/pci.c index 9a58baabb9ca..53572d96cdb6 100644 --- a/drivers/net/wireless/ath9k/pci.c +++ b/drivers/net/wireless/ath9k/pci.c @@ -87,7 +87,6 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) struct ath_softc *sc; struct ieee80211_hw *hw; u8 csz; - u32 val; int ret = 0; struct ath_hw *ah; @@ -134,14 +133,6 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) pci_set_master(pdev); - /* - * Disable the RETRY_TIMEOUT register (0x41) to keep - * PCI Tx retries from interfering with C3 CPU state. - */ - pci_read_config_dword(pdev, 0x40, &val); - if ((val & 0x0000ff00) != 0) - pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); - ret = pci_request_region(pdev, 0, "ath9k"); if (ret) { dev_err(&pdev->dev, "PCI memory region reserve error\n"); @@ -253,21 +244,12 @@ static int ath_pci_resume(struct pci_dev *pdev) struct ieee80211_hw *hw = pci_get_drvdata(pdev); struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; - u32 val; int err; err = pci_enable_device(pdev); if (err) return err; pci_restore_state(pdev); - /* - * 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_read_config_dword(pdev, 0x40, &val); - if ((val & 0x0000ff00) != 0) - pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); /* Enable LED */ ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN, |