ath9k: Handle ASPM properly
ASPM has to be disabled when BTCOEX is in use, do this properly
by calling the bus-specific ASPM init routine after the
BTCOEX scheme has been determined.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index a856b51..6ec9f88 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -115,6 +115,9 @@
int pos;
u8 aspm;
+ if (!ah->is_pciexpress)
+ return;
+
pos = pci_pcie_cap(pdev);
if (!pos)
return;
@@ -138,6 +141,7 @@
aspm &= ~(PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1);
pci_write_config_byte(parent, pos + PCI_EXP_LNKCTL, aspm);
+ ath_info(common, "Disabling ASPM since BTCOEX is enabled\n");
return;
}
@@ -147,6 +151,7 @@
ah->aspm_enabled = true;
/* Initialize PCIe PM and SERDES registers. */
ath9k_hw_configpcipowersave(ah, false);
+ ath_info(common, "ASPM enabled: 0x%x\n", aspm);
}
}