1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 011b14f35e50..97a09dba76de 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -16,6 +16,7 @@
 
 #include <linux/io.h>
 #include <asm/unaligned.h>
+#include <linux/pci.h>
 
 #include "ath9k.h"
 #include "initvals.h"
@@ -4298,3 +4299,16 @@ void ath_gen_timer_isr(struct ath_hw *ah)
                 timer->trigger(timer->arg);
         }
 }
+
+/*
+ * Primitive to disable ASPM
+ */
+void ath_pcie_aspm_disable(struct ath_softc *sc)
+{
+        struct pci_dev *pdev = to_pci_dev(sc->dev);
+        u8 aspm;
+
+        pci_read_config_byte(pdev, ATH_PCIE_CAP_LINK_CTRL, &aspm);
+        aspm &= ~(ATH_PCIE_CAP_LINK_L0S | ATH_PCIE_CAP_LINK_L1);
+        pci_write_config_byte(pdev, ATH_PCIE_CAP_LINK_CTRL, aspm);
+}