diff options
| author | Sujith Manoharan <c_manoha@qca.qualcomm.com> | 2013-08-25 16:30:40 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-08-26 14:09:06 -0400 |
| commit | d1ae25a0174938f03e28dee8f3269a826fc1bec5 (patch) | |
| tree | 37b563d41e412267868b4b563d164b0e77197009 /drivers/net/wireless/ath/ath9k/init.c | |
| parent | 8aada63cc408874916a19341ba514f941096e424 (diff) | |
ath9k: Fix ASPM workaround usage
The PCIE Workaround register (AR_WA/0x4004) is used to handle
various hardware quirks. For AR9002 chips, AR_WA_D3_L1_DISABLE
is used to prevent the HW from automatically entering L1 state
when D3 is enforced.
AR_WA_D3_L1_DISABLE has to be enabled for a few AR9280 based
cards, mark them based on their PCI subdevice/subvendor IDs
and enforce it in ar9002_hw_configpcipowersave().
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/init.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/init.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index 19b46c7e3616..c9f787dea3f6 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -551,6 +551,11 @@ static void ath9k_init_platform(struct ath_softc *sc) pCap->hw_caps |= ATH9K_HW_CAP_BT_ANT_DIV; ath_info(common, "Set BT/WLAN RX diversity capability\n"); } + + if (sc->driver_data & ATH9K_PCI_D3_L1_WAR) { + ah->config.pcie_waen = 0x0040473b; + ath_info(common, "Enable WAR for ASPM D3/L1\n"); + } } static void ath9k_eeprom_request_cb(const struct firmware *eeprom_blob, |