ath9k_hw: only use the PCIe disable register write sequence for AR5416
Newer chips do not need this, and maybe these register writes could have
negative side effects on newer hardware.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 1beb896..7c3d2de 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -284,11 +284,9 @@
static void ath9k_hw_disablepcie(struct ath_hw *ah)
{
- if (AR_SREV_9100(ah))
+ if (!AR_SREV_5416(ah))
return;
- ENABLE_REGWRITE_BUFFER(ah);
-
REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
@@ -300,8 +298,6 @@
REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
-
- REGWRITE_BUFFER_FLUSH(ah);
}
/* This should work for all families including legacy */