diff options
| author | Sujith Manoharan <c_manoha@qualcomm.com> | 2012-09-22 00:14:28 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-07 08:32:27 -0700 |
| commit | 92d9a683c431081038d715585e7da9d953cb09f2 (patch) | |
| tree | d12a58fe85dfb800ef1882afb02c8310231f4fbe | |
| parent | e3a63e8c061c486ce46d8d825b3fdd45c14140de (diff) | |
ath9k: Disable ASPM only for AR9285
commit 046b6802c8d3c8a57448485513bf7291633e0fa3 upstream.
Currently, ASPM is disabled for all WLAN+BT combo chipsets
when BTCOEX is enabled. This is incorrect since the workaround
is required only for WB195, which is a AR9285+AR3011 combo
solution. Fix this by checking for the HW version when enabling
the workaround.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Tested-by: Paul Stewart <pstew@chromium.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/pci.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c index e44097a7529a..0e7d6c188ccf 100644 --- a/drivers/net/wireless/ath/ath9k/pci.c +++ b/drivers/net/wireless/ath/ath9k/pci.c @@ -122,8 +122,9 @@ static void ath_pci_aspm_init(struct ath_common *common) if (!parent) return; - if (ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) { - /* Bluetooth coexistance requires disabling ASPM. */ + if ((ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) && + (AR_SREV_9285(ah))) { + /* Bluetooth coexistance requires disabling ASPM for AR9285. */ pci_read_config_byte(pdev, pos + PCI_EXP_LNKCTL, &aspm); aspm &= ~(PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1); pci_write_config_byte(pdev, pos + PCI_EXP_LNKCTL, aspm); |